A data transmission method, device, transmission receiving node, terminal and medium

Abstract

The present application provides a data transmission method, device, transmission receiving node, terminal and medium. The method sends downlink control information, the downlink control information is used to indicate repeated transmission information of a physical channel; and performs data transmission with a terminal according to the repeated transmission information.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to a data transmission method, device, transmission receiving node, terminal and medium. Background Art

[0002] In the New Radio (NR) Release-15 version, the repeated transmission mechanism of uplink data can be semi-statically configured through high-level Radio Resource Control (RRC) signaling. However, this semi-statically configured repeated transmission mechanism is single and cannot be dynamically configured according to changes in channel scenarios. It also does not support the joint transmission of multiple transmission receiving nodes (Transmission Receive Point, TRP), resulting in low resource utilization of physical channels and low data transmission efficiency during data transmission. Summary of the invention

[0003] The present application provides a data transmission method, device, transmission receiving node, terminal and medium to improve resource utilization and transmission efficiency of repeated transmission.

[0004] The present application provides a data transmission method, including:

[0005] Sending downlink control information (Downlink Control Information, DCI), where the downlink control information is used to indicate repeated transmission information of a physical channel;

[0006] The data is transmitted to the terminal repeatedly according to the information.

[0007] The present application also provides a data transmission method, including:

[0008] receiving downlink control information, where the downlink control information is used to indicate repeated transmission information of a physical channel;

[0009] Data transmission is performed with the transmission receiving node according to the repeated transmission information.

[0010] The present application also provides a data transmission device, including:

[0011] A sending module, configured to send downlink control information, wherein the downlink control information is used to indicate repeated transmission information of a physical channel;

[0012] The first transmission module is configured to perform data transmission with the terminal according to the repeated transmission information.

[0013] The present application also provides a data transmission device, including:

[0014] A receiving module, configured to receive downlink control information, wherein the downlink control information is used to indicate repeated transmission information of a physical channel;

[0015] A second transmission module is configured to perform data transmission with a transmission receiving node according to the repeated transmission information

[0016] The present application also provides a data transmission receiving node, including:

[0017] one or more processors;

[0018] a storage device configured to store one or more programs;

[0019] When the one or more programs are executed by the one or more processors, the one or more processors implement the above data transmission method.

[0020] The present application also provides a terminal, including:

[0021] one or more processors;

[0022] a storage device configured to store one or more programs;

[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the above data transmission method.

[0024] The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned data transmission method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flowchart of a data transmission method provided by an embodiment;

[0026] Figure 2 A schematic diagram of a repeated transmission pattern provided by an embodiment;

[0027] Figure 3 A flowchart of another data transmission method provided by an embodiment;

[0028] Figure 4 A schematic diagram of the structure of a data transmission device provided by an embodiment;

[0029] Figure 5 A schematic diagram of another data transmission device provided by an embodiment

[0030] Figure 6 A schematic diagram of the structure of a data transmission receiving node provided by an embodiment;

[0031] Figure 7 A schematic diagram of the structure of a terminal provided by an embodiment. DETAILED DESCRIPTION

[0032] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0033] For repeated transmission of physical channels, the relevant technology currently only supports a single transmission receiving node to semi-statically configure the number of repeated transmissions through RRC signaling to achieve repeated transmission between terminals, but this repeated transmission cannot be applied to different channel scenarios, and does not support the joint transmission of multiple TRPs. In an embodiment of the present application, a data transmission method is provided, which dynamically indicates the repeated transmission information of the physical channel through downlink control information. The repeated transmission information can be dynamically changed according to the change of the channel and indicated to the terminal. The TRP and the terminal perform data transmission according to the dynamically indicated repeated transmission information, thereby making the repeated transmission method more flexible, applicable to different channel scenarios, and improving resource utilization and transmission efficiency.

[0034] Figure 1 The flowchart of a data transmission method provided by an embodiment. The data transmission method of this embodiment is applied to TRP, and TRP can be a base station of a cell, a base station or a transmission node of a small cell, a sending node in a TRP high-frequency communication system, a sending node in an Internet of Things system, and a satellite in satellite communication, etc. Figure 1 As shown, the method provided in this embodiment includes step S110 and step S120.

[0035] In step S110, downlink control information is sent, where the downlink control information is used to indicate repeated transmission information of a physical channel.

[0036] In this embodiment, the physical channel includes at least one of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), a physical uplink control channel (Physical Uplink Control Channel, PUCCH) and a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH). The repeated transmission information may be for at least one of the following: PDSCH or PUSCH information, physical downlink control channel (Physical Downlink Control Channel, PDCCH) or PUCCH information, downlink / uplink demodulation reference signal (Demodulation Reference Signal, DMRS), uplink signal for random access, sounding reference signal (Sounding Reference Signal, SRS) and phase tracking reference signal (Phase-tracking Reference Signals, PT-RS).

[0037] The repetition transmission information includes at least one of the following: the number of repetition transmissions or recorded as a repetition factor (RF), an SRS resource index, a transmission configuration indication (TCI) state, a repetition transmission pattern, and a DMRS port. Different repetition transmission information can be indicated by different indication fields of the DCI.

[0038] In step S120, data transmission is performed with the terminal according to the repeated transmission information.

[0039] In this embodiment, the terminal may be a node in a communication system such as a user equipment (UE), a mobile phone, a portable device, a car, etc. The TRP sends downlink data to the terminal according to the repeated transmission information of the physical channel indicated in the DCI, and may also receive uplink data sent by the terminal.

[0040] In this embodiment, the beam can be represented by a spatial domain transmission filter (Spatial Domain Transmission Filter) or a spatial domain reception filter, or represented by quasi co-location (Quasi Co-Located, QCL, QCL) with a reference signal or synchronization signal block. For example, the terminal uses the same spatial domain transmission filter as that used to send SRS resource 1 to send PUSCH, or, if TRP indicates that the PUSCH sent by the terminal has a QCL relationship with the reference signal A or the synchronization signal block, it indicates that the terminal uses the same spatial domain transmission filter as that used to send / receive the reference signal A or the synchronization signal block to send PUSCH.

[0041] In this embodiment, the repeated transmission information of the physical channel is indicated by DCI. The repeated transmission information can be changed according to the change of the channel and dynamically indicated to the terminal through DCI. The data is transmitted between the TRP and the terminal according to the dynamically indicated repeated transmission information, making the repeated transmission method more flexible, thereby improving resource utilization and transmission efficiency.

[0042] In one embodiment, for the repeated transmission of ultra-high reliability and low latency (Ultra Reliable Low Latency Communications, URLLC) services under multiple TRPs, a space division multiplexing (SDM) method, a frequency division multiplexing (FDM) method or a time division multiplexing (TDM) method can be used, wherein the TDM method can be time division within a time slot, that is, different TRPs occupy different symbols within a time slot, or it can be time division between time slots, that is, different TRPs occupy different time slots.

[0043] In one embodiment, the repetition transmission information includes the number of repetition transmissions and an SRS resource index, wherein the number of repetition transmissions is a non-negative integer; the number of repetition transmissions and the SRS resource index are jointly indicated through a sounding reference signal resource indicator (SRS Resource Indicator, SRI) field of the DCI.

[0044] In one embodiment, when the physical channel is PUSCH, PUSCH is transmitted based on a codebook or based on a non-codebook. When PUSCH is transmitted based on a non-codebook, the repetition transmission information further includes indication information for early termination of repetition.

[0045] Table 1: Repeated transmission information indicated by the SRI field in codebook-based PUSCH transmission

[0046]

[0047] Taking the case of 4 SRS resources and a maximum of 1 layer of spatial multiplexing as an example, Table 1 is the repeated transmission information indicated by the SRI field in the codebook-based PUSCH transmission provided by an embodiment; Table 2 is the repeated transmission information indicated by the SRI field in the non-codebook-based PUSCH transmission provided by an embodiment. Both Table 1 and Table 2 include the case of non-repeated transmission (the number of repeated transmissions is 0 or 1). Table 2 can support the use of a fixed beam for repeated transmission of PUSCH (for example: the repeated transmission information indicated by the SRI field is: 1 (RF = 2)), and can also support the use of different beams for repeated transmission of PUSCH in different time slots or time domain symbols (for example: the repeated transmission information indicated by the SRI field is: 0; 1 (RF = 2), indicating that the same spatial domain transmission filter as that for sending SRS resource 0 is used to send PUSCH in uplink time slot N, and the same spatial domain transmission filter as that for sending SRS resource 1 is used to repeat PUSCH in the next uplink time slot of uplink time slot N. N SRS Indicates the number of configured SRS resources.

[0048] Table 2: Repeated transmission information indicated by the SRI field in non-codebook based PUSCH transmission

[0049]

[0050] In addition, as shown in Table 2, the 12th bit index (bit index is 11) in the SRI field can be used to indicate the early termination of the repeated transmission of PUSCH, and the 13th to 16th bit indexes (bit indexes are 12-15) are reserved bits, which can be used to indicate the repeated transmission information or other information in this embodiment according to actual needs. For PUSCH, TRP uses the SRS resource index (indicated by SRI) or sends a configuration indication TCI to indicate the beam used by the terminal to send PUSCH. The repeated transmission information indicated by the SRI field in Tables 1 and 2 is only an exemplary description. In actual applications, each bit in the SRI field can also indicate other SRS resource indexes and repeated transmission times.

[0051] In one embodiment, when there are at least two SRS resources, the repetition transmission information indicates that the same spatial transmission filter as used for sending each sounding reference signal resource is used to perform repetition transmission a set number of times or half the set number of times. SRS =2, the repetitive transmission information indicated by the sixth bit index of the SRI domain is: 1 (RF = 4), indicating that the same spatial domain transmission filter as that used to send SRS resource 1 is used to send PUSCH; SRS=3, the repetition transmission information indicated by the 13th bit index of the SRI domain is: 0; 2 (RF=4), which means that the same spatial domain transmission filter as that used to send SRS resource 0 is used to send PUSCH in uplink time slot N, and the same spatial domain transmission filter as that used to send SRS resource 2 is used to repeat PUSCH in the next uplink time slot of uplink time slot N. The same spatial domain transmission filter as that used to send SRS resource 0 can be used for the first two repetition transmissions, and the same spatial domain transmission filter as that used to send SRS resource 2 can be used for the second two repetition transmissions; or, the two spatial domain transmission filters are repeated alternately, that is, the same spatial domain transmission filter as that used to send SRS resource 0 is used for the first and third repetition transmissions, and the same spatial domain transmission filter as that used to send SRS resource 2 is used for the second and fourth repetition transmissions.

[0052] In one embodiment, the repetitive transmission information includes a TCI status; the repetitive transmission information is indicated by the TCI field of the DCI; the TCI status includes at least one of the following information: the number of repetitive transmissions, the SRS resource index, the channel state information reference signal (Channel State Information-Reference Signal, CSI-RS) resource index and the synchronization signal block (Synchronize Signal Block, SSB) index.

[0053] In one embodiment, the TCI state is one of the candidate TCI states configured by the high-level RRC signaling; the number of bits indicating the TCI state is determined according to the number of TCI states configured by the high-level RRC signaling. For example, 64 TCI states are configured by RRC signaling, and one of the TCI states is indicated to the terminal through the TCI field in the DCI.

[0054] In one embodiment, the TCI state is one of the candidate TCI states activated by the Media Access Control Element (MAC CE) signaling; the number of bits indicating the TCI state is determined according to the number of TCI states activated by the MAC CE signaling. For example, 64 TCI states are configured by RRC signaling, 8 candidate TCI states are activated by MAC CE signaling, and a TCI state is selected from the 8 candidate TCI states through the 3-bit TCI field in the DCI to indicate to the terminal.

[0055] Table 3 is the repeated transmission information indicated by the TCI domain provided by an embodiment. As shown in Table 3, different values ​​of the TCI domain correspond to different TCI states. For example, the bit value of the TCI domain is 000, indicating TCI state 0, and TCI state 0 includes: using SRS resource 2 for repeated transmission, and the number of repeated transmissions is 4; for another example, the bit value of the TCI domain is 011, indicating TCI state 3, and TCI state 3 includes: using the same spatial domain transmission filter (Spatial Domain Transmission Filter) as the received CSI-RS resource 0 for repeated transmission, and the number of repeated transmissions is 8; for another example, the bit value of the TCI domain is 100, indicating TCI state 4, and TCI state 4 includes: using the same spatial domain transmission filter as the received SSB resource 2 for repeated transmission, and the number of repeated transmissions is 4.

[0056] Table 3 Repeated transmission information indicated by the TCI field

[0057]

[0058] The repeated transmission information indicated by the TCI field in Table 3 is only an exemplary description. In actual applications, different bits of the TCI field may also indicate other TCI states.

[0059] In this embodiment, the TCI field may be a TCI field in the DCI for scheduling PDSCH, or a TCI field in the DCI for scheduling PUSCH, or a TCI field in the DCI for group user scheduling or group user signaling.

[0060] In this embodiment, when the parameters in the TCI state do not include the RF parameters, or include the RF parameters and RF=0 or RF=1, it indicates that repeated transmission is not performed or the number of repeated transmissions is 1.

[0061] In one embodiment, the repetition transmission information includes the number of repetition transmissions, and the number of repetition transmissions is one of the candidate repetition transmission numbers configured by high-level signaling, or one of the candidate repetition transmission numbers predefined with the terminal; the repetition transmission information is indicated by a newly added indication field in the DCI, and the newly added indication field is 2 bits or 3 bits.

[0062] In this embodiment, a group of repetition transmission times is configured through high-level signaling, and the group contains 4 or 8 values ​​of repetition transmission times. A 2-bit or 3-bit indication field is added in the uplink scheduled DCI to instruct the terminal to dynamically select a repetition transmission number from this group of repetition transmission times.

[0063] Alternatively, the TRP configures multiple groups of repeated transmission times through high-level signaling, activates one of the multiple groups through medium access control unit signaling, and then instructs the terminal to dynamically select a repeated transmission number from the repeated transmission times of this group through the indication field in the DCI.

[0064] Alternatively, the TRP and the terminal predefine a group of repeated transmission times, and the base station instructs the terminal to dynamically select a repeated transmission number from this group of repeated transmission times through the indication field in the DCI.

[0065] In one embodiment, the repetition transmission information includes the number of repetition transmissions; when the physical channel is PUSCH, when PUSCH uses resource allocation type 1, PUSCH is non-frequency hopping transmission, the defined dynamic repetition transmission enable parameter is 1, and the high-level parameters include 4 offset values, the repetition transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the DCI, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate the frequency domain resource allocation; wherein the total number of bits in the frequency domain resource allocation field is determined according to the number of resource blocks (Resource Block) occupied by the user bandwidth portion.

[0066] In this embodiment, a new RRC parameter is defined for terminals of Release-17 or above, namely, a dynamic repetition transmission enabling parameter (which may be recorded as Dynamic Repetition Enable). When PUSCH uses resource allocation type 1, does not perform frequency domain hopping, the value of the dynamic repetition transmission enabling parameter is 1, and the high-level parameters include 4 offset values ​​(i.e., N UL_hop =2), the high 2 bits of the frequency domain resource allocation field in the DCI are used to dynamically indicate the number of repeated transmissions of the PUSCH, and the remaining bits are used to dynamically indicate the number of repeated transmissions of the PUSCH. The bits indicate the frequency domain resource allocation, where the high-level parameter is the frequency hopping offset list (which can be recorded as Frequency Hopping Offset Lists); if any of the above conditions is not met, all bits in the frequency domain resource allocation field are used to indicate the frequency domain resource allocation. The total number of bits for the frequency domain resource allocation and in The number of RBs occupied by the user bandwidth part (Bandwidth Part, BWP).

[0067] In this embodiment, the number of repeated transmissions is one of the candidate number of repeated transmissions, and the candidate number of repeated transmissions is configured by RRC signaling, or predefined by the TRP and the terminal. For example, the TRP may preconfigure a group of PUSCH repeated transmissions through RRC signaling, and the group includes 4 values ​​of repeated transmissions; or the TRP may predefine a group of PUSCH repeated transmissions with the terminal.

[0068] Table 4: Repeated transmission information indicated by a set number of high-order bits in the frequency domain resource allocation field

[0069]

[0070] Table 4 is the repeated transmission information indicated by the set number of high-order bits in the frequency domain resource allocation domain provided by an embodiment. As shown in Table 4, different values ​​of the high-order 2 bits of the frequency domain resource allocation domain are used to indicate different repeated transmission times. For example, if the value of the high-order 2 bits is 10, the indicated repeated transmission number of PUSCH is 4. The repeated transmission information indicated by the set number of high-order bits in the frequency domain resource allocation domain in Table 4 is only an exemplary description. In actual applications, the set number of high-order bits in the frequency domain resource allocation domain can also indicate other repeated transmission times.

[0071] In one embodiment, the repetition transmission information includes a repetition transmission pattern and a number of repetition transmissions; or, the repetition transmission information includes a repetition transmission pattern, and the number of repetition transmissions is configured by RRC signaling.

[0072] In one embodiment, the repetition transmission pattern and the number of repetition transmissions are dynamically jointly indicated through DCI.

[0073] Table 5 Repeated transmission information indicated by the DCI field

[0074]

[0075] Table 5 is the repetition transmission information indicated by the DCI field provided in an embodiment. In this embodiment, different bit values ​​can be used to indicate different repetition transmission times or repetition transmission patterns. For example, when the bit values ​​are 011, the indicated repetition transmission times are 16 and the repetition transmission pattern is c.

[0076] The repetition transmission information indicated by the DCI field in Table 5 is only an exemplary description. In practical applications, the bit values ​​of the DCI field may also correspond to other repetition transmission times.

[0077] Figure 2 FIG. 1 is a schematic diagram of a repeated transmission pattern provided by an embodiment. Figure 2As shown, three repetitive transmission patterns are preconfigured in this embodiment, including pattern a, pattern b and pattern c, which are used to indicate the number of repetitive transmissions between the TRP and the terminal. For example, pattern a indicates that the number of repetitive transmissions between the TRP and the terminal is 4, and the first two repetitive transmissions are between the first TRP and the terminal, and the last two repetitive transmissions are between the second TRP and the terminal; pattern b indicates that the number of repetitive transmissions between the TRP and the terminal is 4, and the first and third repetitive transmissions are between the first TRP and the terminal, and the second and fourth repetitive transmissions are between the second TRP and the terminal; pattern c indicates that the number of repetitive transmissions between the TRP and the terminal is 4, and each repetitive transmission is between two TRPs and the terminal.

[0078] In one embodiment, the repetition transmission pattern is dynamically indicated by DCI, and the number of repetition transmissions is configured by RRC signaling.

[0079] In one embodiment, the repeated transmission information includes the number of repeated transmissions; when the scheduling method of TRP for terminal uplink transmission is single-user multiple-input multiple-output (SU-MIMO), the repeated transmission information is indicated by part of the bits or all of the bits in the antenna port (Antenna Ports) field in the DCI.

[0080] In one embodiment, when the number of spatial multiplexing layers of PUSCH or PUCCH is 1, the demodulation reference signal port defaults to port 0; when the number of spatial multiplexing layers of PUSCH or PUCCH is 2, the demodulation reference signal port defaults to port 0 and port 1.

[0081] In this embodiment, the scheduling mode of TRP for terminal uplink transmission is SU-MIMO. When PUSCH or PUCCH is repeatedly transmitted, the antenna port field in DCI dynamically indicates the number of repeated transmissions of PUSCH or PUCCH. In this case, if the number of spatial multiplexing layers of PUSCH or PUCCH is 1, the DMRS port defaults to port 0; if the number of spatial multiplexing layers of PUSCH or PUCCH is 2, the DMRS port defaults to port 0 and port 1.

[0082] Table 6 Repeated transmission information indicated by the antenna port field

[0083]

[0084] Table 6 is the repetition transmission information indicated by the antenna port field provided in an embodiment. In this embodiment, different bit values ​​of the antenna port field can be used to indicate different repetition transmission times. For example, when the bit value is 11, the indicated repetition transmission number of PUSCH or PUCCH is 8. The repetition transmission information indicated by the antenna port field in Table 6 is only an exemplary description. In actual applications, the bit value of the antenna port field may also correspond to other repetition transmission times.

[0085] In this embodiment, when the repeated transmission information is indicated by partial bits in the antenna port field in the DCI, the partial bits are high-order partial bits or low-order partial bits in the antenna port field.

[0086] In one embodiment, the repetition transmission information includes the number of repetition transmissions and the DMRS port; the number of repetition transmissions and the DMRS port are jointly indicated through the antenna port field in the DCI.

[0087] In this embodiment, when PUSCH or PUCCH is repeatedly transmitted, TRP jointly indicates the number of repeated transmissions of PUSCH or PUCCH and the DMRS port to the terminal through the antenna port field in the DCI.

[0088] Table 7 is the repeated transmission information jointly indicated by the antenna port domain provided in an embodiment. In this embodiment, different bit values ​​of the antenna port domain can be used to dynamically jointly indicate different repeated transmission times and DMRS ports. For example, when the bit value is 1111, the indicated repeated transmission number of PUSCH or PUCCH is 8, and the indicated DMRS port is port 3. The repeated transmission information indicated by the antenna port domain in Table 7 is only an exemplary description. In actual applications, the bit values ​​of the antenna port domain may also correspond to other repeated transmission times and DMRS ports.

[0089] Table 7 Repeated transmission information of antenna port domain joint indication

[0090]

[0091] The data transmission method of the above-mentioned embodiment can indicate the repeated transmission information of the physical channel through various indication fields in the DCI. The repeated transmission information can be changed according to the change of the channel and dynamically indicated to the terminal through the DCI. The TRP and the terminal transmit data according to the dynamically indicated repeated transmission information, making the repeated transmission method more flexible, thereby improving resource utilization and transmission efficiency.

[0092] The embodiment of the present application also provides a flow chart of another data transmission method. The data transmission method of this embodiment is applied to a terminal, which may be a node in a communication system such as a UE, a mobile phone, a portable device, or a car.

[0093] Figure 3 FIG. 1 is a flow chart of another data transmission method provided by an embodiment. Figure 3 As shown, the method provided in this embodiment includes step S210 and step S220. For technical details not fully described in this embodiment, please refer to any of the above embodiments.

[0094] In step S210, downlink control information is received, where the downlink control information is used to indicate repeated transmission information of a physical channel.

[0095] In step S220, data transmission is performed with the transmission receiving node according to the repeated transmission information.

[0096] In one embodiment, the repetition transmission information includes a repetition transmission number and a sounding reference signal resource index, wherein the repetition transmission number is a non-negative integer; the repetition transmission number and the sounding reference signal resource index are jointly indicated by a sounding reference signal resource indication field of the downlink control information.

[0097] In one embodiment, when the physical channel is a physical uplink shared channel, the physical uplink shared channel is codebook-based or non-codebook-based transmission;

[0098] In the case where the physical uplink shared channel is based on non-codebook transmission, the repeated transmission information further includes indication information for early termination of repetition.

[0099] In one embodiment, when there are at least two sounding reference signal resources, the repetition transmission information indicates that the repetition transmission is performed a set number of times or half the set number of times using the same spatial domain transmission filter as used for sending each sounding reference signal resource in sequence.

[0100] In one embodiment, the repeated transmission information includes a sending configuration indication status; the repeated transmission information is indicated by a sending configuration indication field of the downlink control information; the sending configuration indication status includes at least one of the following information: the number of repeated transmissions, the detection reference signal resource index, the channel state information reference signal resource index and the synchronization signal block index.

[0101] In one embodiment, the sending configuration indication state is one of the candidate sending configuration indication states configured by the high-level radio resource control signaling; the number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states configured by the high-level radio resource control signaling.

[0102] In one embodiment, the sending configuration indication state is one of the candidate sending configuration indication states activated by medium access control unit signaling; the number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states activated by the medium access control unit signaling.

[0103] In one embodiment, the repetition transmission information includes a repetition transmission number, and the repetition transmission number is one of candidate repetition transmission numbers configured by high-layer signaling, or one of candidate repetition transmission numbers predefined with the terminal;

[0104] The repeated transmission information is indicated by a newly added indication field in the downlink control information, and the newly added indication field is 2 bits or 3 bits.

[0105] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0106] In the case where the physical channel is a physical uplink shared channel, and where the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enable parameter value is 1, and the high-level parameters include 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation; wherein the total number of bits in the frequency domain resource allocation field is determined according to the number of resource blocks occupied by the user bandwidth part.

[0107] In one embodiment, the number of repeated transmissions is one of candidate numbers of repeated transmissions, and the candidate number of repeated transmissions is configured by radio resource control signaling or predefined by a transmission receiving node and a terminal.

[0108] In one embodiment, the repetition transmission information includes a repetition transmission pattern and a repetition transmission number; or, the repetition transmission information includes a repetition transmission pattern, and the repetition transmission number is configured by radio resource control signaling.

[0109] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0110] In the case where the scheduling mode of the transmission receiving node for the terminal uplink transmission is single-user multiple-input multiple-output, the repeated transmission information is indicated by the antenna port field in the downlink control information.

[0111] In one embodiment, when the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 1, the demodulation reference signal port defaults to port 0;

[0112] When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 2, the demodulation reference signal ports are port 0 and port 1 by default.

[0113] In one embodiment, the repetition transmission information includes the number of repetition transmissions and a demodulation reference signal port;

[0114] The number of repeated transmissions and the demodulation reference signal port are jointly indicated through the antenna port field in the downlink control information.

[0115] In this embodiment, the terminal may perform repeated transmission based on the corresponding SRS resources, CRI-RS resources, SSB, etc., or perform repeated transmission according to the repeated transmission pattern, or perform repeated transmission a certain number of times, etc., according to the repeated transmission information of the physical channel indicated in the downlink control information. The terminal receives the downlink control information, and various indication fields in the downlink control information can be used to indicate repeated transmission information. The repeated transmission information can be changed according to the change of the channel and dynamically indicated to the terminal through the DCI. The TRP and the terminal perform data transmission according to the dynamically indicated repeated transmission information, making the repeated transmission method more flexible, thereby improving resource utilization and transmission efficiency.

[0116] The embodiment of the present application also provides a data transmission device. Figure 4 FIG. 1 is a schematic diagram of a data transmission device provided by an embodiment. Figure 4 As shown, the data transmission device includes: a sending module 310 and a first transmission module 320.

[0117] A sending module 310, configured to send downlink control information, where the downlink control information is used to indicate repeated transmission information of a physical channel;

[0118] The first transmission module 320 is configured to perform data transmission with the terminal according to the repeated transmission information.

[0119] The data transmission device of this embodiment can indicate the repeated transmission information of the physical channel through various indication fields in the DCI. The repeated transmission information can be changed according to the change of the channel and dynamically indicated to the terminal through the DCI. The data transmission between the TRP and the terminal is performed according to the dynamically indicated repeated transmission information, making the repeated transmission method more flexible, thereby improving resource utilization and transmission efficiency.

[0120] In one embodiment, the repetition transmission information includes a repetition transmission number and a sounding reference signal resource index, wherein the repetition transmission number is a non-negative integer; the repetition transmission number and the sounding reference signal resource index are jointly indicated by a sounding reference signal resource indication field of the downlink control information.

[0121] In one embodiment, when the physical channel is a physical uplink shared channel, the physical uplink shared channel is codebook-based or non-codebook-based transmission;

[0122] In the case where the physical uplink shared channel is based on non-codebook transmission, the repeated transmission information further includes indication information for early termination of repetition.

[0123] In one embodiment, when there are at least two sounding reference signal resources, the repetition transmission information indicates that the repetition transmission is performed a set number of times or half the set number of times using the same spatial domain transmission filter as used for sending each sounding reference signal resource in sequence.

[0124] In one embodiment, the repetitive transmission information includes sending a configuration indication status;

[0125] The repeated transmission information is indicated by a sending configuration indication field of the downlink control information;

[0126] The sending configuration indication state includes at least one of the following: the number of repeated transmissions, a sounding reference signal resource index, a channel state information reference signal resource index, and a synchronization signal block index.

[0127] In one embodiment, the transmission configuration indication state is one of the candidate transmission configuration indication states configured by the higher-layer radio resource control signaling;

[0128] The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states configured by the higher-layer radio resource control signaling.

[0129] In one embodiment, the transmission configuration indication state is one of the candidate transmission configuration indication states activated by medium access control unit signaling;

[0130] The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states activated by the medium access control unit signaling.

[0131] In one embodiment, the repetition transmission information includes a repetition transmission number, and the repetition transmission number is one of candidate repetition transmission numbers configured by high-layer signaling, or one of candidate repetition transmission numbers predefined with the terminal;

[0132] The repeated transmission information is indicated by a newly added indication field in the downlink control information, and the newly added indication field is 2 bits or 3 bits.

[0133] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0134] In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation;

[0135] The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

[0136] In one embodiment, the number of repeated transmissions is one of candidate numbers of repeated transmissions, and the candidate number of repeated transmissions is configured by radio resource control signaling or predefined by a transmission receiving node and a terminal.

[0137] In one embodiment, the repetition transmission information includes a repetition transmission pattern and a repetition transmission number; or,

[0138] The repetitive transmission information includes a repetitive transmission pattern, and the number of repetitive transmissions is configured by radio resource control signaling.

[0139] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0140] In the case where the scheduling mode of the transmission receiving node for the terminal uplink transmission is single-user multiple-input multiple-output, the repeated transmission information is indicated by the antenna port field in the downlink control information.

[0141] In one embodiment, when the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 1, the demodulation reference signal port defaults to port 0;

[0142] When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 2, the demodulation reference signal ports are port 0 and port 1 by default.

[0143] In one embodiment, the repetition transmission information includes the number of repetition transmissions and a demodulation reference signal port;

[0144] The number of repeated transmissions and the demodulation reference signal port are jointly indicated through the antenna port field in the downlink control information.

[0145] The embodiment of the present application also provides a data transmission device. Figure 5 FIG. 1 is a schematic diagram of another data transmission device provided by an embodiment. Figure 5 As shown, the data transmission device includes: a receiving module 410 and a second transmission module 420.

[0146] A receiving module 410 is configured to receive downlink control information, where the downlink control information is used to indicate repeated transmission information of a physical channel;

[0147] The second transmission module 420 is configured to perform data transmission with the transmission receiving node according to the repeated transmission information.

[0148] In one embodiment, the repetition transmission information includes a number of repetition transmissions and a sounding reference signal resource index, wherein the number of repetition transmissions is a non-negative integer;

[0149] The number of repeated transmissions and the sounding reference signal resource index are jointly indicated through a sounding reference signal resource indication field of the downlink control information.

[0150] In one embodiment, when the physical channel is a physical uplink shared channel, the repeated transmission information further includes indication information for terminating the repetition in advance.

[0151] In one embodiment, when there are at least two sounding reference signal resources, the repetition transmission information indicates that the repetition transmission is performed a set number of times or half the set number of times using the same spatial domain transmission filter as used for sending each sounding reference signal resource in sequence.

[0152] In one embodiment, the repetitive transmission information includes sending a configuration indication status;

[0153] The repeated transmission information is indicated by a sending configuration indication field of the downlink control information;

[0154] The sending configuration indication status includes at least one of the following information: the number of repeated transmissions, a sounding reference signal resource index, a channel state information reference signal resource index, and a synchronization signal block index.

[0155] In one embodiment, the transmission configuration indication state is one of the candidate transmission configuration indication states configured by the higher-layer radio resource control signaling;

[0156] The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states configured by the higher-layer radio resource control signaling.

[0157] In one embodiment, the transmission configuration indication state is one of the candidate transmission configuration indication states activated by medium access control unit signaling;

[0158] The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states activated by the medium access control unit signaling.

[0159] In one embodiment, the repetition transmission information includes a repetition transmission number, and the repetition transmission number is one of candidate repetition transmission numbers configured by high-layer signaling, or one of candidate repetition transmission numbers predefined with the terminal;

[0160] The repeated transmission information is indicated by a newly added indication field in the downlink control information, and the newly added indication field is 2 bits or 3 bits.

[0161] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0162] In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation;

[0163] The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

[0164] In one embodiment, the number of repeated transmissions is one of candidate numbers of repeated transmissions, and the candidate number of repeated transmissions is configured by radio resource control signaling or predefined by a transmission receiving node and a terminal.

[0165] In one embodiment, the repetition transmission information includes a repetition transmission pattern and a repetition transmission number; or,

[0166] The repetitive transmission information includes a repetitive transmission pattern, and the number of repetitive transmissions is configured by radio resource control signaling.

[0167] In one embodiment, the repetition transmission information includes the number of repetition transmissions;

[0168] In the case where the scheduling mode of the transmission receiving node for the terminal uplink transmission is single-user multiple-input multiple-output, the repeated transmission information is indicated by the antenna port field in the downlink control information.

[0169] In one embodiment, when the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 1, the demodulation reference signal port defaults to port 0;

[0170] When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 2, the demodulation reference signal ports are port 0 and port 1 by default.

[0171] In one embodiment, the repetition transmission information includes the number of repetition transmissions and a demodulation reference signal port;

[0172] The number of repeated transmissions and the demodulation reference signal port are jointly indicated through the antenna port field in the downlink control information.

[0173] The data transmission device of this embodiment receives downlink control information. Various indication fields in the downlink control information can indicate repeated transmission information. The repeated transmission information can be changed according to changes in the channel and dynamically indicated to the terminal through DCI. Data is transmitted between TRP and the terminal according to the dynamically indicated repeated transmission information, making the repeated transmission method more flexible, thereby improving resource utilization and transmission efficiency.

[0174] The embodiment of the present application also provides a data transmission receiving node. The data transmission method can be executed by a transmission device, which can be implemented by software and / or hardware and integrated in the data transmission receiving node.

[0175] Figure 6 The structure diagram of a data transmission receiving node provided by an embodiment is as follows. Figure 6 As shown, a data transmission receiving node provided in this embodiment includes: a processor 510 and a storage device 520. The processor in the data transmission receiving node may be one or more, Figure 6 Taking a processor 510 as an example, the processor 510 and the storage device 520 in the device may be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0176] The one or more programs are executed by the one or more processors 510, so that the one or more processors implement the data transmission method described in any of the above embodiments.

[0177] The storage device 520 in the data transmission receiving node is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the transmission method in the embodiment of the present invention (for example, the attached Figure 4 The modules in the data transmission device shown include: a sending module 310 and a first transmission module 320). The processor 510 executes various functional applications and data processing of the data transmission receiving node by running the software programs, instructions and modules stored in the storage device 520, that is, the data transmission method in the above method embodiment is implemented.

[0178] The storage device 520 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device, etc. (such as repeated transmission information, downlink control information, etc. in the above embodiments). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to a data transmission receiving node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0179] Furthermore, when one or more programs included in the above-mentioned data transmission receiving node are executed by the one or more processors 510, the following operations are implemented: sending downlink control information, wherein the downlink control information is used to indicate repeated transmission information of the physical channel; and performing data transmission with the terminal according to the repeated transmission information.

[0180] The data transmission receiving node proposed in this embodiment and the data transmission method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the transmission method.

[0181] The embodiment of the present application also provides a terminal. The data transmission method can be executed by a transmission device, which can be implemented by software and / or hardware and integrated in the terminal.

[0182] Figure 7 FIG. 1 is a schematic diagram of a terminal structure provided by an embodiment. Figure 7 As shown, a terminal provided in this embodiment includes: a processor 610 and a storage device 620. The processor in the terminal may be one or more, Figure 7 Taking a processor 610 as an example, the processor 610 and the storage device 620 in the device may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0183] The one or more programs are executed by the one or more processors 610, so that the one or more processors implement the data transmission method described in any of the above embodiments.

[0184] The storage device 620 in the terminal is a computer-readable storage medium that can be used to store one or more programs, which can be software programs, computer executable programs, and modules, such as program instructions / modules corresponding to the transmission method in the embodiment of the present invention (for example, the attached Figure 5 The modules in the data transmission device shown include: a receiving module 410 and a second transmission module 420). The processor 610 executes various functional applications and data processing of the terminal by running the software programs, instructions and modules stored in the storage device 620, that is, implements the data transmission method in the above method embodiment.

[0185] The storage device 620 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device, etc. (such as repeated transmission information, downlink control information, etc. in the above embodiment). In addition, the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 620 may further include a memory remotely arranged relative to the processor 610, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0186] Furthermore, when one or more programs included in the above-mentioned terminal are executed by the one or more processors 610, the following operations are implemented: receiving downlink control information, wherein the downlink control information is used to indicate repeated transmission information of a physical channel; and performing data transmission with a transmission receiving node according to the repeated transmission information.

[0187] The terminal proposed in this embodiment and the data transmission method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the transmission method.

[0188] An embodiment of the present application also provides a storage medium containing computer executable instructions, which are used to execute a data transmission method when executed by a computer processor.

[0189] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0190] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0191] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0192] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A data transmission method, characterized in that: include: Sending downlink control information, where the downlink control information is used to indicate repeated transmission information of a physical channel; Performing data transmission with the terminal according to the repeated transmission information; The repeated transmission information includes the number of repeated transmissions; In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation; The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

2. The method according to claim 1, characterized in that The repeated transmission information includes the number of repeated transmissions and the sounding reference signal resource index, wherein the number of repeated transmissions is a non-negative integer; The number of repeated transmissions and the sounding reference signal resource index are jointly indicated through a sounding reference signal resource indication field of the downlink control information.

3. The method according to claim 1 or 2, characterized in that: In the case that the physical channel is a physical uplink shared channel, the repeated transmission information further includes indication information for terminating the repetition in advance.

4. The method according to claim 2, characterized in that: In the case where there are at least two sounding reference signal resources, the repetition transmission information indicates that the repetition transmission is performed a set number of times or half the set number of times in sequence using the same spatial domain transmission filter as used for sending each sounding reference signal resource.

5. The method according to claim 1, characterized in that The repeated transmission information includes a sending configuration indication status; The repeated transmission information is indicated by a sending configuration indication field of the downlink control information; The sending configuration indication status includes at least one of the following information: the number of repeated transmissions, a sounding reference signal resource index, a channel state information reference signal resource index, and a synchronization signal block index.

6. The method according to claim 5, characterized in that The sending configuration indication state is one of the candidate sending configuration indication states configured by the higher-layer radio resource control signaling; The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states configured by the higher-layer radio resource control signaling.

7. The method according to claim 5, characterized in that The transmission configuration indication state is one of the candidate transmission configuration indication states activated by medium access control unit signaling; The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states activated by the medium access control unit signaling.

8. The method according to claim 1, characterized in that The repetition transmission information includes the number of repetition transmissions, where the number of repetition transmissions is one of the candidate number of repetition transmissions configured by the high-layer signaling, or one of the candidate number of repetition transmissions predefined with the terminal; The repeated transmission information is indicated by a newly added indication field in the downlink control information, and the newly added indication field is 2 bits or 3 bits.

9. The method according to claim 1, characterized in that: The number of repeated transmissions is one of candidate repeated transmission numbers, and the candidate repeated transmission number is configured by radio resource control signaling or predefined by a transmission receiving node and a terminal.

10. The method according to claim 1, characterized in that The repetition transmission information includes a repetition transmission pattern and a repetition transmission number; or, The repetitive transmission information includes a repetitive transmission pattern, and the number of repetitive transmissions is configured by radio resource control signaling.

11. The method according to claim 1, characterized in that: The repeated transmission information includes the number of repeated transmissions; In the case where the scheduling mode of the transmission receiving node for the terminal uplink transmission is single-user multiple-input multiple-output, the repeated transmission information is indicated by the antenna port field in the downlink control information.

12. The method according to claim 11, characterized in that When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 1, the demodulation reference signal port defaults to port 0; When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 2, the demodulation reference signal ports are port 0 and port 1 by default.

13. The method according to claim 1, characterized in that The repeated transmission information includes the number of repeated transmissions and a demodulation reference signal port; The number of repeated transmissions and the demodulation reference signal port are jointly indicated through the antenna port field in the downlink control information.

14. A data transmission method, characterized in that: include: receiving downlink control information, where the downlink control information is used to indicate repeated transmission information of a physical channel; Performing data transmission with a transmission receiving node according to the repeated transmission information; The repeated transmission information includes the number of repeated transmissions; In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation; The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

15. The method according to claim 14, characterized in that The repeated transmission information includes the number of repeated transmissions and the sounding reference signal resource index, wherein the number of repeated transmissions is a non-negative integer; The number of repeated transmissions and the sounding reference signal resource index are jointly indicated through a sounding reference signal resource indication field of the downlink control information.

16. The method according to claim 14 or 15, characterized in that In the case that the physical channel is a physical uplink shared channel, the repeated transmission information further includes indication information for terminating the repetition in advance.

17. The method according to claim 15, characterized in that In the case where there are at least two sounding reference signal resources, the repetition transmission information indicates that the repetition transmission is performed a set number of times or half the set number of times in sequence using the same spatial domain transmission filter as used for sending each sounding reference signal resource.

18. The method according to claim 14, characterized in that The repeated transmission information includes a sending configuration indication status; The repeated transmission information is indicated by a sending configuration indication field of the downlink control information; The sending configuration indication status includes at least one of the following information: the number of repeated transmissions, a sounding reference signal resource index, a channel state information reference signal resource index, and a synchronization signal block index.

19. The method according to claim 18, characterized in that The sending configuration indication state is one of the candidate sending configuration indication states configured by the higher-layer radio resource control signaling; The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states configured by the higher-layer radio resource control signaling.

20. The method according to claim 18, characterized in that The transmission configuration indication state is one of the candidate transmission configuration indication states activated by medium access control unit signaling; The number of bits indicating the sending configuration indication state is determined according to the number of sending configuration indication states activated by the medium access control unit signaling.

21. The method according to claim 14, characterized in that The repetition transmission information includes the number of repetition transmissions, where the number of repetition transmissions is one of the candidate number of repetition transmissions configured by the high-layer signaling, or one of the candidate number of repetition transmissions predefined with the terminal; The repeated transmission information is indicated by a newly added indication field in the downlink control information, and the newly added indication field is 2 bits or 3 bits.

22. The method according to claim 14, characterized in that The number of repeated transmissions is one of candidate repeated transmission numbers, and the candidate repeated transmission number is configured by radio resource control signaling or predefined by a transmission receiving node and a terminal.

23. The method according to claim 14, characterized in that The repetition transmission information includes a repetition transmission pattern and a repetition transmission number; or, The repetitive transmission information includes a repetitive transmission pattern, and the number of repetitive transmissions is configured by radio resource control signaling.

24. The method according to claim 14, characterized in that The repeated transmission information includes the number of repeated transmissions; In the case where the scheduling mode of the transmission receiving node for the terminal uplink transmission is single-user multiple-input multiple-output, the repeated transmission information is indicated by the antenna port field in the downlink control information.

25. The method according to claim 24, characterized in that When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 1, the demodulation reference signal port defaults to port 0; When the number of spatial multiplexing layers of the physical uplink shared channel or the physical uplink control channel is 2, the demodulation reference signal ports are port 0 and port 1 by default.

26. The method according to claim 14, characterized in that The repeated transmission information includes the number of repeated transmissions and a demodulation reference signal port; The number of repeated transmissions and the demodulation reference signal port are jointly indicated through the antenna port field in the downlink control information.

27. An information indicating device, characterized in that: include: A sending module, configured to send downlink control information, wherein the downlink control information is used to indicate repeated transmission information of a physical channel; A first transmission module, configured to perform data transmission with a terminal according to the repeated transmission information; The repeated transmission information includes the number of repeated transmissions; In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation; The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

28. An uplink transmission device, characterized in that: include: A receiving module, configured to receive downlink control information, wherein the downlink control information is used to indicate repeated transmission information of a physical channel; A second transmission module, configured to perform data transmission with a transmission receiving node according to the repeated transmission information; The repeated transmission information includes the number of repeated transmissions; In the case where the physical channel is a physical uplink shared channel, and the physical uplink shared channel uses resource allocation type 1, physical uplink shared channel non-frequency hopping transmission, the defined dynamic repeated transmission enabling parameter value is 1, and the high-layer parameter includes 4 offset values, the repeated transmission information is indicated by a set number of high-order bits of the frequency domain resource allocation field in the downlink control information, and the remaining bits in the frequency domain resource allocation field except the set number of high-order bits are set to indicate frequency domain resource allocation; The total number of bits in the frequency domain resource allocation domain is determined according to the number of resource blocks occupied by the user bandwidth part.

29. A data transmission receiving node, characterized in that: include: one or more processors; a storage device configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the data transmission method according to any one of claims 1 to 13.

30. A terminal, characterized in that: include: one or more processors; a storage device configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the data transmission method according to any one of claims 14 to 26.

31. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the data transmission method according to any one of claims 1 to 13 or the data transmission method according to any one of claims 14 to 26 is implemented.

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