WO2021121134A1 - Information transmission method and apparatus, related device, and storage medium - Google Patents

Abstract

Disclosed in the present application are an information transmission method and apparatus, a network device, a terminal and a storage medium. The method comprises: a network device sends first information to a terminal, the first information representing downlink control-related information for duplicate transmission at the media access control (MAC) layer of the network device. The first information contains at least one of the following information: the total number of source data packets to be sent and duplicate data packets to be sent; each duplicate data packet to be sent being completely identical to a source data packet to be sent; an identifier of a physical channel on which each data packet to be sent is located; time-frequency domain resource-related information of each data packet to be sent; hybrid automatic repeat request (HARQ)-related information of each data packet to be sent; a sounding reference signal (SRS) pattern corresponding to each data packet to be sent; and a code word transmission identifier.

Description

Information transmission method, device, related equipment and storage medium

Cross-references to related applications

This application is filed based on the Chinese patent application with the application number 201911326657.6 and the filing date on December 20, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by reference.

Technical field

This application relates to the field of wireless communication, and in particular to an information transmission method, device, related equipment, and storage medium.

Background technique

In the fifth-generation mobile communication technology (5G) system, with the introduction of ultra-reliable, low-latency communication (URLLC) services, the method of duplication (which can be expressed in English as duplication) is increasingly used, namely Through technologies such as carrier aggregation (CA) and dual connectivity (DC)/multiple connectivity (MC), the same data packet is sent on different links, thereby obtaining the robustness gain of multi-link parallel transmission.

However, how to effectively copy and transmit is a problem that needs to be solved urgently.

Summary of the invention

To solve related technical problems, embodiments of the present application provide an information transmission method, device, related equipment, and storage medium.

The technical solutions of the embodiments of the present application are implemented as follows:

The embodiment of the application provides an information transmission method, which is applied to a network device, and includes:

Send first information to the terminal; the first information represents downlink control related information that is copied and sent at the media access control (MAC) layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

Hybrid automatic repeat request (HARQ) related information for each data packet to be sent;

Sounding Reference Signal (SRS) mode corresponding to each data packet to be sent;

Code word transmission identification.

In the above solution, the first information further includes second information; the second information indicates whether to start copy transmission.

In the above solution, the first information is sent to the terminal through downlink control information (DCI) or radio resource control (RRC) signaling.

In the above solution, all data packets to be sent correspond to one DCI;

or,

Each data packet to be sent corresponds to a DCI.

In the above solution, single codeword transmission is adopted; the method further includes:

In a data transmission cycle, a single codeword with different time-frequency resources is used to transmit each data packet to be sent.

In the above solution, dual codeword transmission is adopted; the method further includes:

In a data transmission cycle, at least one data packet to be sent is transmitted using dual codewords of different time-frequency resources.

In the above solution, the method further includes:

It is determined that the downstream data packet needs to be copied and sent.

The embodiment of the present application also provides an information transmission method, which is applied to a terminal, and includes:

Receiving first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

In the above solution, the first information further includes second information; the second information indicates whether to start copy transmission.

In the above solution, the first information sent by the network device is received through DCI or RRC signaling.

In the above solution, all data packets to be sent correspond to one DCI;

or,

Each data packet to be sent corresponds to a DCI.

In the above solution, the method further includes:

When a data packet is received on the time-frequency domain resource corresponding to each data packet, for the time-frequency domain resource whose signal quality meets the first condition, decode the data packet received on the corresponding time-frequency domain resource or decode the different time-frequency resources. Data packets received on frequency domain resources are combined and decoded; for time-frequency domain resources whose signal quality does not meet the first condition, data packets received on different corresponding time-frequency domain resources are combined and decoded.

The embodiment of the present application also provides an information transmission device, including:

The sending unit is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

The embodiment of the present application also provides an information transmission device, including:

The receiving unit is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

The embodiment of the present application also provides a network device, including: a first processor and a first communication interface; wherein,

The first communication interface is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

The embodiment of the present application also provides a terminal, including: a second processor and a second communication interface; wherein,

The second communication interface is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

An embodiment of the present application also provides a network device, including: a first processor and a first memory configured to store a computer program that can run on the processor,

Wherein, the first processor is configured to execute the steps of any method on the network device side when running the computer program.

An embodiment of the present application also provides a terminal, including: a second processor and a second memory configured to store a computer program that can run on the processor,

Wherein, the second processor is configured to execute the steps of any method on the terminal side when running the computer program.

The embodiment of the present application also provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of any method on the network device side or the steps of any method on the terminal side are implemented.

In the information transmission method, apparatus, related equipment, and storage medium provided by the embodiments of the present application, a network device sends first information to a terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device, In this way, the terminal can receive the data packet copied by the MAC layer according to the received downlink control related information.

Description of the drawings

FIG. 1 is a schematic flowchart of a method for transmitting information on a network device side according to an embodiment of this application;

FIG. 2 is a schematic flowchart of a method for information transmission according to an embodiment of this application;

FIG. 3 is a schematic structural diagram of an information transmission device according to an embodiment of the application;

4 is a schematic structural diagram of another information transmission device according to an embodiment of the application;

FIG. 5 is a schematic diagram of the structure of a network device according to an embodiment of the application;

Fig. 6 is a schematic diagram of a terminal structure according to an embodiment of the application;

FIG. 7 is a schematic diagram of the structure of an information transmission system according to an embodiment of the application.

Detailed ways

The application will be further described in detail below in conjunction with the drawings and embodiments.

When using replication (also can be understood as multiplexing) transmission, one implementation is to replicate data packets at the Packet Data Convergence Protocol (PDCP) layer. For a user equipment (UE), provide simultaneous transmission on multiple links data transmission. When using this method, for a terminal, the terminal needs to maintain uplink synchronization on each link, and the terminal is required to have a certain transceiver capability (multi-band transceiver), which greatly increases the manufacturing cost of the terminal; at the same time, It will also greatly increase the power consumption of the terminal.

Based on this, data packets can be copied at the MAC layer. Data packets are replicated and transmitted at the MAC layer. Replication at the MAC layer can simplify high-level links. With the help of the flexible scheduling capability of the MAC layer and the multi-channel capability brought by CA, it can achieve higher reliability and real-time multiplexing. Gain.

When duplication is performed at the MAC layer, in the downlink direction (the direction in which the network side sends information to the terminal), how to schedule for duplication and transmission is a particularly important issue.

Based on this, in various embodiments of the present application, the network device sends first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device.

Wherein, the copy sending refers to: copying the source data packet to obtain one or more copied data packets; sending at least one of the source data packet and the one or more copied data packets to the receiver.

The embodiment of the present application provides an information transmission method, which is applied to a network device. As shown in FIG. 1, the method includes:

Step 100: It is determined that the data packet needs to be copied and sent in the downlink;

Step 101: Send the first information to the terminal.

Wherein, the first information represents downlink control related information that is copied and sent at the MAC layer of the network device.

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Here, in actual applications, the network device may specifically be a base station, such as a next-generation node B (gNB).

The value of the total number is the number of copies+1.

In practical applications, the method for determining the need to copy and send data packets in the downlink can be set according to needs, for example, it can be determined according to the service characteristics of the terminal, such as quality of service (QoS).

The data of the MAC layer needs to be sent to the physical (PHY) layer. Therefore, the data packet to be sent may be called a transport block (TB, Transport Block), and the TB is relative to the PHY layer. Specifically, for the MAC protocol entity, the MAC protocol entity sends the received service data unit (SDU) of the MAC layer to send related processing to obtain the protocol data unit (PDU) of the MAC layer. In the PHY layer, for the PHY protocol For the entity, what is received is the PDU sent by the MAC protocol entity, which is called TB at this time. Before encoding at the PHY layer, the TB can be called a codeword.

The identification of the physical channel where each data packet to be sent is located refers to the identification information of the air interface physical channel where the data packet is located, and is used to indicate the transmission of one or more TBs (data packets to be sent) with the best or better channel quality. The physical channel used at the time. According to the indication information, the terminal can preferentially select the indicated TB for decoding.

In practical applications, the identification information of the physical channel can be any identifier that can identify the physical channel of the TB air interface, such as the carrier index (Carrier Index), carrier indicator (Carrier Indicator), cell index (Cell Index), and physical cell ID (PCI, Physical Cell Identifier), cell ID (Cell Identifier) (which can indicate the cell where the physical channel is located), physical channel ID (Physical Channel ID), and the starting physical resource block (PRB, Physical Resource Block) of the physical channel Index, the offset value of the start PRB index of the physical channel or the offset index of the start PRB index of the physical information channel (Offset Index), the start PRB index of the physical channel relative to a specified baseline The offset value or the index of the offset value of the starting PRB index relative to a specified baseline, the bandwidth part (BWP) index where the physical channel is located, the ID of the BWP where the physical channel is located, or the starting resource of the physical channel Index of the element (RE, Resource Element), etc.

Among them, the index is relative, and the ID is globally uniformly numbered. For example, for the BWP index and the ID of the BWP, it is assumed that the ID of the BWP can be a value between 0 and 273. For 4 BWPs used by a user, the index can be 0 to 3, but the ID of the corresponding BWP can be a value between 0 and 273.

When there are at least two physical channels used for copy transmission in one carrier, different physical channels need to be identified; when all physical channels used for copy transmission are no longer in one carrier, this field may not be carried.

In practical applications, the time-frequency domain resource-related information of each data packet to be sent refers to the frequency-domain resource and time-domain resource allocation information that bears the data packet (also can be understood as TB), such as the specific PRB index used, and time-domain resource allocation information. The number of gaps and so on.

The HARQ related information may include: identification information of the HARQ entity and HARQ information.

Among them, in actual application, the identification information of the HARQ entity may be the HARQ ID. When all the data packets to be sent use the same HARQ entity, the first information may not include this information; when the data packets to be sent use at least two HARQ entities, the first information needs to include this information.

The HARQ information may include modulation mode, new data (NDI, New Data Indicator) and redundancy version (RV, Redundancy Version), HARQ process index, received data for each HARQ process and the timing relationship of ACK/NACK feedback, etc. .

Here, in actual application, one HARQ process or multiple HARQ processes can be used for one time scheduling and transmission. Each HARQ process has its own modulation mode, NDI, RV, and feedback timing information.

In practical applications, the SRS mode can be a full-bandwidth SRS mode for better channel measurement.

The codeword transmission identifier can be a single codeword multiplexing identifier or a double codeword multiplexing identifier, or when there is only one codeword multiplexing when there is only one codeword multiplexing identifier; for example, single codeword multiplexing The ID or, the double codeword multiplexing ID is set to SD_Flag, the transmission ID for single codeword is 0, and the transmission ID for double codewords is 1. When double codewords are used, the index of the multiplexed codeword when only one codeword is multiplexed is set to DTB_Index.

In practical applications, the first information may also include second information; the second information indicates whether to enable copy transmission, for example, it may be indicated by using 1 bit, when it is set to 0, it indicates that copy transmission is turned off; when it is set to 1 o'clock indicates that the copy transmission is turned on.

In related technologies, the format of DCI used for downlink transmission includes DCI 1_0 and DCI 1_1. However, DCI 1_0 and DCI 1_1 can only schedule the physical downlink control channel (PDCCH) of one cell (Cell); in addition, only DCI 1_1 can carry Carrier Indicator. This field is optional (0 bits or 3 bits). For the Carrier Indicator in DCI 1_1, it is stipulated that the UE will not monitor the PDCCH on the downlink (DL) BWP on other secondary cells, even if the carrier indicator (CIF) of another serving cell indicates the secondary cell. In other words, for the UE, the UE needs to monitor the PDCCH of the same serving cell. It can be seen from the above description that the related technology does not support data copy transmission at the MAC layer.

In the embodiment of the present application, the first information may be sent to the terminal through DCI.

Among them, in actual application, all sent data packets to be sent correspond to one DCI; that is, one DCI indicates downlink control related information corresponding to all data packets to be sent. Of course, each data packet to be sent can also correspond to one DCI; that is, one DCI indicates downlink control related information corresponding to one data packet to be sent. It is also possible that multiple data packets to be sent correspond to one DCI, that is, one DCI indicates downlink control related information corresponding to multiple data packets in all data packets to be sent.

It should be noted that when the first information is sent to the terminal through DCI, the first information includes at least the total number of source data packets to be sent and duplicate data packets to be sent; when double codeword transmission is used, there is only one codeword duplicate. When used, the index of the codeword is reused.

In practical applications, the DCI may be carried by PDCCH; the format of the DCI may be DCI Format1_0 or DCI Format1_1.

In an actual application, the first information, such as an RRC reconfiguration message, can also be sent to the terminal through RRC signaling.

In an embodiment, when a single codeword is used for transmission, the method may further include:

In a data transmission cycle, a single codeword with different time-frequency resources is used to transmit each data packet to be sent.

In an embodiment, when dual codeword transmission is adopted; the method may further include:

In a data transmission cycle, at least one data packet to be sent is transmitted using dual codewords of different time-frequency resources.

Among them, the data transmission period may also be referred to as a scheduling period.

Correspondingly, an embodiment of the present application also provides an information transmission method, which is applied to a terminal, and includes:

Receiving first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Wherein, after receiving the first information, the terminal can use the first information to receive the data packet copied by the MAC layer.

In an embodiment, the terminal receives the first information sent by the network device through DCI or RRC signaling. Specifically, when the first information is sent through DCI, the terminal receives the first information through DCI; when the first information is sent through RRC signaling, the terminal receives the first information through RRC signaling .

In an embodiment, the method may further include:

When a data packet is received on the time-frequency domain resource corresponding to each data packet, for the time-frequency domain resource whose signal quality meets the first condition, decode the data packet received on the corresponding time-frequency domain resource or decode the different time-frequency resources. Data packets received on frequency domain resources are combined and decoded; for time-frequency domain resources whose signal quality does not meet the first condition, data packets received on different corresponding time-frequency domain resources are combined and decoded.

Wherein, the first condition can be set according to needs, such as setting a signal quality threshold, when the signal quality is greater than or equal to the signal quality threshold, it is determined that the signal quality meets the first condition; when the signal quality is less than the signal quality threshold, the signal is determined The quality does not meet the first condition.

In practical applications, the number of data packets to be combined and decoded can be determined as required.

An embodiment of the present application provides an information transmission method. As shown in FIG. 2, the method includes:

Step 201: The network device sends the first information to the terminal;

Here, the first information represents downlink control related information that is copied and sent at the MAC layer of the network device.

Wherein, the first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Step 202: The terminal receives the first information.

In the information transmission method provided by the embodiments of the present application, a network device sends first information to a terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device, so that the terminal can follow the received downlink Control related information and receive data packets copied by the MAC layer.

The application will be further described in detail below in conjunction with application examples.

In the application embodiment, the second information is recorded as the duplication flag, the total number of the source to-be-sent data packet and the duplication-to-be-sent data packet is recorded as DuplicationNum, and the identifier of the physical channel where the data packet is located is recorded as the physical ID ( Physical ID), the SRS pattern is recorded as RS_pattern, the single and double codeword multiplexing identifier is recorded as SD_Flag, and the index of the multiplexed codeword when only one codeword is multiplexed when the double codeword is multiplexed is recorded as DTB_Index.

Application Example One

In this application embodiment, all data packets to be sent use one DCI for scheduling instructions.

When the format of DCI is Format1_0, the information contained in DCI is as follows:

Identifier for DCI formats-1bits (refer to related technologies)

-Duplication Flag–1bits, set to 0 when the replication transmission is disabled; set to 1 when the replication transmission is enabled

TBTB

-DuplicationNum–4bits as defined 0～15; a data packet can be copied into 15 copies and sent, a total of 16 times.

Among them, DuplicationNum is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

The following fields are filled in according to the actual DuplicationNum as a whole. For example, if the value of Duplication is 2, the following fields need to be filled in two groups, one corresponding to a source to be sent data packet, and one to a duplication to be sent data packet.

-SRS-pattern–6bits as defined SRS Pattern. Set up a table, here is the index of the configured table.

Among them, SRS-pattern is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

{/*Fill in multiple times according to DuplicationNum*/

-Physical ID–3bits as defined as Cell ID. Use Cell ID for identification.

Among them, only when the Duplication Flag indicates that the replication transmission is turned on, the analysis is performed according to DuplicationNum.

-HARQ ID-3bits can be sent using the same HARQ entity, that is, all HARQ IDs have the same value; it can also be sent using HARQ processes of different HARQ entities.

Among them, only when the Duplication Flag indicates that the replication transmission is turned on, the analysis is performed according to DuplicationNum.

bits(

的取值可参照相关技术)/*频域资源的记录方式没有改变，但是按照DuplicationNum填写多次，每一个数据包对应一个频域资源块*/ -Frequency domain resource assignment–

bits(

The value of can refer to related technologies)/*The recording method of frequency domain resources has not changed, but fills in multiple times according to DuplicationNum, and each data packet corresponds to a frequency domain resource block*/

-Time domain resource assignment–4bits (refer to related technologies)

-VRB-to-PRB mapping-1bit (refer to related technology)

-Modulation and coding scheme-5bits (refer to related technology)

-New data indicator–1bit

-Redundancy version-2bits (refer to related technology)

-HARQ process number–4bits

-Downlink assignment index-2bits (refer to related technology)

-TPC command for scheduled PUCCH-2bits (refer to related technology)

-PUCCH resource indicator–3bits (refer to related technologies)

-PDSCH-to-HARQ_feedback timing indicator-3bits (refer to related technology)

}/*Fill in multiple times according to DuplicationNum*/

When the format of DCI is Format1_1, the information contained in DCI is as follows:

-Identifier for DCI formats-1bits (refer to related technologies)

-Duplication Flag–1bits, set to 0 when the replication transmission is disabled; set to 1 when the replication transmission is enabled

TBTB

-DuplicationNum–4bits as defined 0-15; one TB can be copied into 15 copies and sent, a total of 16 times.

Among them, DuplicationNum is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

-SD_Flag–1bits, single code word is set to 0; double code word is set to 1

Among them, SD_Flag is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

-DTB_Index–1bits, code word 0 is set to 0, code word 1 is set to 1

Among them, DTB_Index is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

The following fields are filled in according to the actual DuplicationNum as a whole. For example, if the value of Duplication is 2, the following fields need to be filled in two groups, one corresponding to a source to be sent data packet, and one to a duplication to be sent data packet.

{/*Fill in multiple times according to DuplicationNum*/

-Physical ID–3bits as defined as Cell ID. Use Cell ID for identification.

Among them, only when the Duplication Flag indicates that the replication transmission is turned on, the analysis is performed according to DuplicationNum.

-HARQ ID-3bits can be sent using the same HARQ entity, that is, all HARQ IDs have the same value; it can also be sent using HARQ processes of different HARQ entities.

Among them, only when the Duplication Flag indicates that the replication transmission is turned on, the analysis is performed according to DuplicationNum.

-Frequency domain resource assignment-refer to related technologies

-Time domain resource assignment-0,1,2,3,or 4bits (refer to related technologies)

-VRB-to-PRB mapping-0 or 1 bit (refer to related technology)

-Rate matching indicator-0,1,or 2bits (refer to related technology)

-ZP CSI-RS trigger-0, 1, or 2bits (refer to related technologies).

-HARQ process number–4bits

-Downlink assignment index--Refer to related technologies

-TPC command for scheduled PUCCH-2bits (refer to related technology)

-PUCCH resource indicator–3bits (refer to related technologies)

-PDSCH-to-HARQ_feedback timing indicator-0,1,2,or 3bits (refer to related technology)

-Antenna port(s)-4, 5, or 6bits (refer to related technology)

-Transmission configuration indication--Refer to related technologies

-SRS request-2bits (refer to related technology)

-CBG transmission information (CBGTI)-0, 2, 4, 6, or 8 bits (refer to related technologies).

-CBG flushing out information (CBGFI)-0 or 1 bit (refer to related technology)

}/*Fill in multiple times according to DuplicationNum*/

Application Example Two

In this application embodiment, each data packet to be sent (including the source data packet to be sent and the copy of the data packet to be sent) uses one DCI for scheduling instructions:

When the format of DCI is Format1_0, the information contained in DCI is as follows:

-Identifier for DCI formats-1bits (refer to related technologies)

-Duplication Flag–1bits, set to 0 when the replication transmission is disabled; set to 1 when the replication transmission is enabled

TBTB

-Physical ID–3bits as defined as Cell ID. Use Cell ID for identification.

Among them, it is valid only when the Duplication Flag indicates that the replication transmission is turned on.

-HARQ ID—3bits can be sent using the same HARQ entity, that is, all HARQ IDs have the same value; they can also be sent using HARQ processes of different HARQ entities.

bits(

的取值可参照相关技术) -Frequency domain resource assignment–

bits(

(The value of can refer to related technology)

-Time domain resource assignment–4bits (refer to related technologies)

-VRB-to-PRB mapping-1bit (refer to related technology)

-Modulation and coding scheme-5bits (refer to related technology)

-New data indicator–1bit

-Redundancy version-2bits (refer to related technology)

-HARQ process number–4bits

-Downlink assignment index-2bits (refer to related technology)

-TPC command for scheduled PUCCH-2bits (refer to related technology)

-PUCCH resource indicator–3bits (refer to related technologies)

-PDSCH-to-HARQ_feedback timing indicator-3bits (refer to related technology)

}

When the format of DCI is Format1_1, the information contained in DCI is as follows:

-Identifier for DCI formats-1bits (refer to related technologies)

-Carrier indicator-0 or 3bits (refer to related technology)

-Bandwidth part indicator-0,1or 2bits (refer to related technology).

-Duplication Flag–1bits, set to 0 when the replication transmission is disabled; set to 1 when the replication transmission is enabled.

TBTB

-SD_Flag – 1bits, single code word is set to 0; double code word is set to 1.

Among them, SD_Flag is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

-DTB_Index–1bits, code word 0 is set to 0, code word 1 is set to 1.

Among them, DTB_Index is a valid value only when the Duplication Flag indicates that the replication transmission is turned on.

-Physical ID–3bits as defined as Cell ID. Use Cell ID for identification.

Among them, it is valid only when the Duplication Flag indicates that the replication transmission is turned on.

-HARQ ID-3bits can be sent using the same HARQ entity, that is, all HARQ IDs have the same value; it can also be sent using HARQ processes of different HARQ entities.

-Frequency domain resource assignment-refer to related technologies

-Time domain resource assignment-0,1,2,3,or 4bits (refer to related technologies)

-VRB-to-PRB mapping-0 or 1 bit (refer to related technology)

-PRB bundling size indicator-0 or 1 bit (refer to related technology)

-Rate matching indicator-0, 1, or 2bits (refer to related technology).

-ZP CSI-RS trigger-0,1,or 2bits (refer to related technology)

For transport block 1:

-Modulation and coding scheme-5bits (refer to related technology)

-New data indicator–1bit

-Redundancy version-2bits (refer to related technology)

For transport block 2(only present if maxNrofCodeWordsScheduledByDCI equals 2):

-Modulation and coding scheme–5bits (refer to related technology)-New data indicator–1bit

-Redundancy version-2bits (refer to related technology)

-HARQ process number–4bits

-Downlink assignment index--Refer to related technologies

-TPC command for scheduled PUCCH-2bits (refer to related technology)

-PUCCH resource indicator–3bits (refer to related technologies)

-PDSCH-to-HARQ_feedback timing indicator-0,1,2,or 3bits (refer to related technology)

-Antenna port(s)-4, 5, or 6bits (refer to related technology).

-Transmission configuration indication--Refer to related technologies

-SRS request-2bits (refer to related technology)

-CBG transmission information (CBGTI)-0, 2, 4, 6, or 8 bits (refer to related technologies)

-CBG flushing out information (CBGFI)-0 or 1 bit (refer to related technology).

-DMRS sequence initialization – 1bit.

Application Example Three

In this application embodiment, the sending process of the base station and the receiving process of the terminal are described.

The base station sends:

In the downlink direction, the base station schedules the radio resources used for sending data, TB blocks, the timing relationship of the UE for feedback, and the uplink physical resources used by the UE for feedback.

The base station can set the process of multiple HARQ entities for the UE to copy and send the data.

When the base station transmits, only one TB is sent for each data transmission cycle and a single codeword. If the replication transmission is turned on, the same data packet will be transmitted on different time-frequency resources. Two TBs are sent when dual codewords are used. If replica transmission is enabled, one of the codewords can be multiplexed, or all of them can be multiplexed.

The base station knows the resource and feedback time of each data packet sent, so after sending it, it waits to receive feedback.

If retransmission is required, the base station re-decides the number and resource location of data packets to be copied and transmitted. The information of the HARQ process is updated according to regulations.

When receiving, the terminal receives the data packet according to the indication information in the received PDCCH.

Among them, if the network side uses a DCI to indicate all multiplexed data packets, the corresponding data packet is received according to the resource location and the number of multiplexing in the DCI. As long as one data packet is successfully decoded, it is considered that it has been successfully received ; If all the decoding fails, several data packets are selected from all the received data packets to be combined and decoded. If the decoding is successful, it is considered that it has been successfully received; otherwise, it is considered that the reception has failed.

If the network side uses multiple DCIs to indicate all multiplexed data packets, it will receive the corresponding data packets according to the resource location in the DCI. As long as one decoding result is obtained, it is considered to have been successfully received; if all the decoding fails , Then select a number of TBs from all received TBs for combined decoding, if the decoding is successful, it is considered to have been successfully received, otherwise, it is considered that the reception has failed.

If the reception is successful, ACK is fed back to the corresponding uplink feedback resource on any data packet;

If the reception fails, the NACK is fed back on the uplink feedback resource with relatively good reception quality.

The codes received in the downlink are merged on the terminal side. Therefore, for all data packets sent by copying, you can set only one soft buffer (which can be expressed as Soft Buffer in English) or multiple soft buffers. When multiple soft buffers are set, When buffering, the decoupling of HARQ process and code merge soft buffer is realized.

As can be seen from the above description, the DCI is used to send the MAC layer to the terminal to copy and send the downlink control related information, and the terminal is scheduled to receive the copied data packet, which realizes the multiple copy transmission of the data packet, thereby realizing the transmission of multiple physical transmission channels. The gain, in this way, reduces the complexity and cost of the terminal supporting multiple radio frequency channels.

In addition, when the solution of the embodiment of the present application is applied to a 5G system, the bandwidth gain of the 5G system can be fully utilized.

In addition, the solutions of the embodiments of the present application have good compatibility and are compatible with third-generation mobile communication technology (3G), fourth-generation mobile communication technology (4G) and 5G networks. In a 3G or 4G network, you can directly send each data packet one by one.

In order to implement the method of the embodiment of the present application, the embodiment of the present application also provides an information transmission device, which is set on a network device. As shown in FIG. 3, the device includes:

The sending unit 31 is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Wherein, in an embodiment, the sending unit 31 is configured to send the first information to the terminal through downlink DCI or RRC signaling.

In one embodiment, single codeword transmission is adopted; the sending unit 31 is further configured to use single codewords of different time-frequency resources to transmit each data packet to be sent in one data transmission cycle.

In an embodiment, dual codeword transmission is adopted; the sending unit 31 is further configured to use dual codewords of different time-frequency resources to transmit at least one data packet to be sent in one data transmission cycle.

In an embodiment, as shown in FIG. 3, the device may further include: a determining unit 32, configured to determine that a data packet needs to be copied and sent in a downlink.

In practical applications, the sending unit 31 can be implemented by a communication interface in an information transmission device; the determining unit 32 can be implemented by a processor in the information transmission device.

In order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides an information transmission device, which is set on the terminal. As shown in FIG. 4, the device includes:

The receiving unit 41 is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Wherein, in an embodiment, the receiving unit 41 is configured to receive the first information sent by the network device through DCI or RRC signaling.

In an embodiment, as shown in FIG. 4, the device may further include: a processing unit 42 configured to:

When a data packet is received on the time-frequency domain resource corresponding to each data packet, for the time-frequency domain resource whose signal quality meets the first condition, decode the data packet received on the corresponding time-frequency domain resource or decode the different time-frequency resources. Data packets received on frequency domain resources are combined and decoded; for time-frequency domain resources whose signal quality does not meet the first condition, data packets received on different corresponding time-frequency domain resources are combined and decoded.

In practical applications, the receiving unit 41 can be implemented by a communication interface in an information transmission device; the processing unit 42 can be implemented by a processor in an information transmission device.

It should be noted that when the information transmission device provided in the above embodiment performs information transmission, only the division of the above-mentioned program modules is used as an example for illustration. In actual applications, the above-mentioned processing can be allocated by different program modules as needed. That is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the information transmission device and the information transmission method embodiments provided in the above embodiments belong to the same concept. For the specific implementation process, please refer to the method embodiments, which will not be repeated here.

Based on the hardware implementation of the above program modules, and in order to implement the method on the network device side of the embodiment of the present application, the embodiment of the present application also provides a network device. As shown in FIG. 5, the network device 50 includes:

The first communication interface 51 can exchange information with the terminal;

The first processor 52 is connected to the first communication interface 51 to implement information interaction with the terminal, and is configured to execute the method provided by one or more technical solutions on the network device side when it is configured to run a computer program. The computer program is stored in the first memory 53.

Specifically, the first communication interface 51 is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Wherein, in an embodiment, the first communication interface 51 is configured to send the first information to the terminal through downlink DCI or RRC signaling.

In one embodiment, single codeword transmission is adopted; the first communication interface 51 is further configured to use single codewords of different time-frequency resources to transmit each data packet to be sent in one data transmission cycle.

In an embodiment, dual codeword transmission is adopted; the first communication interface 51 is further configured to use dual codewords of different time-frequency resources to transmit at least one data packet to be sent in one data transmission cycle.

In an embodiment, the first processor is configured to determine that a data packet needs to be copied and sent in a downlink.

In practical applications, the first communication interface 51 may receive the scheduling result indication sent by the network device through DCI or MAC CE.

It should be noted that the specific processing procedures of the first processor 52 and the first communication interface 51 can be understood with reference to the foregoing method.

Of course, in actual application, the various components in the network device 50 are coupled together through the bus system 54. It can be understood that the bus system 54 is configured to implement connection and communication between these components. In addition to the data bus, the bus system 54 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 54 in FIG. 5.

The first memory 53 in the embodiment of the present application is configured to store various types of data to support the operation of the network device 50. Examples of these data include: any computer program used to operate on the network device 50.

The method disclosed in the foregoing embodiment of the present application may be applied to the first processor 52 or implemented by the first processor 52. The first processor 52 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the first processor 52 or instructions in the form of software. The aforementioned first processor 52 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The first processor 52 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. Combining the steps of the method disclosed in the embodiments of the present application, it may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the first memory 53, and the first processor 52 reads the information in the first memory 53, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the network device 50 may be configured by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device, Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronics The component is implemented and configured to perform the aforementioned method.

Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a terminal. As shown in FIG. 6, the terminal 60 includes:

The second communication interface 61 can exchange information with network equipment;

The second processor 62 is connected to the second communication interface 61 to implement information interaction with network equipment, and when configured to run a computer program, it executes the method provided by one or more technical solutions on the terminal side. The computer program is stored in the second memory 63.

Specifically, the second communication interface 61 is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein,

The first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

Wherein, in an embodiment, the second communication interface 61 is configured to receive the first information sent by the network device through DCI or RRC signaling.

In an embodiment, the second processor 62 is configured to:

When a data packet is received on the time-frequency domain resource corresponding to each data packet, for the time-frequency domain resource whose signal quality meets the first condition, decode the data packet received on the corresponding time-frequency domain resource or decode the different time-frequency resources. Data packets received on frequency domain resources are combined and decoded; for time-frequency domain resources whose signal quality does not meet the first condition, data packets received on different corresponding time-frequency domain resources are combined and decoded.

It should be noted that the specific processing procedures of the second processor 62 and the second communication interface 61 can be understood with reference to the foregoing method.

Of course, in actual application, the various components in the terminal 60 are coupled together through the bus system 64. It can be understood that the bus system 64 is configured to implement connection and communication between these components. In addition to the data bus, the bus system 64 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 64 in FIG. 6.

The second memory 63 in the embodiment of the present application is configured to store various types of data to support the operation of the terminal 60. Examples of these data include: any computer program used to operate on the terminal 60.

The method disclosed in the foregoing embodiment of the present application may be applied to the second processor 62 or implemented by the second processor 62. The second processor 62 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the second processor 62 or instructions in the form of software. The aforementioned second processor 62 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The second processor 62 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. Combining the steps of the method disclosed in the embodiments of the present application, it may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the second memory 63. The second processor 62 reads the information in the second memory 63 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the terminal 60 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components, and is configured to perform the foregoing methods.

It can be understood that the memory (the first memory 53, the second memory 63) of the embodiment of the present application may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read- Only Memory, Electrically Erasable Programmable Read-Only Memory (EEPROM), Ferromagnetic Random Access Memory (FRAM), Flash Memory, Magnetic Surface Memory , CD-ROM, or CD-ROM (Compact Disc Read-Only Memory); magnetic surface memory can be magnetic disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), and dynamic random access memory. Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory) ). The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

In order to implement the method of the embodiment of the present application, the embodiment of the present application also provides a data transmission system. As shown in FIG. 7, the system includes: a network device 71 and a terminal 72; wherein,

The network device 71 is configured to send first information to the terminal 72; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device;

The terminal 72 is configured to receive the first information sent by the network device 71.

Wherein, the first information includes at least one of the following information:

The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source;

The identification of the physical channel where each data packet to be sent is located;

Time-frequency domain resource-related information of each data packet to be sent;

HARQ related information of each data packet to be sent;

SRS mode corresponding to each data packet to be sent;

Code word transmission identification.

It should be noted that the specific processing procedures of the network device 71 and the terminal 72 have been described in detail above, and will not be repeated here.

In an exemplary embodiment, the embodiment of the present application also provides a storage medium, that is, a computer storage medium, specifically a computer-readable storage medium, such as a first memory 53 that stores a computer program, and the computer program can be used by the network device 50. Executed by the first processor 52 to complete the steps described in the aforementioned network device-side method. For another example, it includes a second memory 63 storing a computer program, which can be executed by the second processor 62 of the terminal 60 to complete the steps described in the aforementioned terminal-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

It should be noted that: "first", "second", etc. are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

The above are only preferred embodiments of the present application, and are not used to limit the protection scope of the present application.

Claims (19)

An information transmission method applied to network equipment, including: Send first information to the terminal; the first information represents downlink control related information that is copied and sent at the media access control MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of the hybrid automatic repeat request for each data packet to be sent; Sounding reference signal SRS mode corresponding to each data packet to be sent; Code word transmission identification. The method according to claim 1, wherein the first information further includes second information; the second information indicates whether to start copy transmission. The method according to claim 1, wherein the first information is sent to the terminal through downlink control information DCI or radio resource control RRC signaling. The method according to claim 3, wherein all the data packets to be sent correspond to one DCI; or, Each data packet to be sent corresponds to a DCI. The method according to any one of claims 1 to 4, wherein single codeword transmission is adopted; the method further comprises: In a data transmission cycle, a single codeword with different time-frequency resources is used to transmit each data packet to be sent. The method according to any one of claims 1 to 4, wherein dual codeword transmission is adopted; the method further comprises: In a data transmission cycle, at least one data packet to be sent is transmitted using dual codewords of different time-frequency resources. The method according to any one of claims 1 to 4, wherein the method further comprises: It is determined that the downstream data packet needs to be copied and sent. An information transmission method, applied to a terminal, includes: Receiving first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of each data packet to be sent; SRS mode corresponding to each data packet to be sent; Code word transmission identification. 8. The method according to claim 8, wherein the first information further includes second information; the second information indicates whether to enable copy transmission. The method according to claim 8, wherein the first information sent by the network device is received through DCI or RRC signaling. The method according to claim 10, wherein all data packets to be sent correspond to one DCI; or, Each data packet to be sent corresponds to a DCI. The method according to any one of claims 8 to 11, wherein the method further comprises: When a data packet is received on the time-frequency domain resource corresponding to each data packet, for the time-frequency domain resource whose signal quality meets the first condition, decode the data packet received on the corresponding time-frequency domain resource or decode the different time-frequency resources. Data packets received on frequency domain resources are combined and decoded; for time-frequency domain resources whose signal quality does not meet the first condition, data packets received on different corresponding time-frequency domain resources are combined and decoded. An information transmission device includes: The sending unit is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of each data packet to be sent; SRS mode corresponding to each data packet to be sent; Code word transmission identification. An information transmission device includes: The receiving unit is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of each data packet to be sent; SRS mode corresponding to each data packet to be sent; Code word transmission identification. A network device includes: a first processor and a first communication interface; wherein, The first communication interface is configured to send first information to the terminal; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of each data packet to be sent; SRS mode corresponding to each data packet to be sent; Code word transmission identification. A terminal includes: a second processor and a second communication interface; wherein, The second communication interface is configured to receive first information sent by a network device; the first information represents downlink control related information that is copied and sent at the MAC layer of the network device; wherein, The first information includes at least one of the following information: The total number of data packets to be sent by the source and data packets to be copied; each data packet to be copied is exactly the same as the data packets to be sent from the source; The identification of the physical channel where each data packet to be sent is located; Time-frequency domain resource-related information of each data packet to be sent; HARQ related information of each data packet to be sent; SRS mode corresponding to each data packet to be sent; Code word transmission identification. A network device includes: a first processor and a first memory configured to store a computer program that can run on the processor, Wherein, the first processor is configured to execute the steps of the method according to any one of claims 1 to 7 when running the computer program. A terminal, including: a second processor and a second memory configured to store a computer program that can run on the processor, Wherein, the second processor is configured to execute the steps of the method according to any one of claims 8 to 12 when running the computer program. A storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 7, or implements the method of any one of claims 8 to 12 step.

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