CN109792312A

CN109792312A - A kind of method, terminal device and network equipment transmitting data

Info

Publication number: CN109792312A
Application number: CN201780049768.XA
Authority: CN
Inventors: 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-03-03
Filing date: 2017-03-03
Publication date: 2019-05-21
Also published as: WO2018157406A1

Abstract

The embodiment of the present application discloses a kind of method, terminal device and network equipment for transmitting data, this method comprises: receiving the data in multiple hybrid automatic repeat-request HARQ processes that the network equipment is sent；According to multiple HARQ process, the replicate data that the data in each process of multiple HARQ process are the same Paket Data Convergence Protocol PDCP protocol Data Unit PDU is determined；Processing or unified feedback are merged to the replicate data.The method, terminal device and the network equipment of the embodiment of the present application, enable to terminal device that replicate data is effectively treated.

Description

Data transmission method, terminal equipment and network equipment

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a method for transmitting data, a terminal device, and a network device.

Background

In a carrier aggregation scenario, a PDCP Protocol layer originating terminal may support a data replication function, that is, one Packet Data Convergence Protocol (PDCP) Protocol Data Unit (PDU) is replicated into two copies (possibly multiple copies), so as to improve reliability of data transmission. In the prior art, when receiving the duplicated data, a receiving end directly pushes the duplicated data to a high layer without processing, so that a plurality of repeated data appear at the high layer, and therefore, terminal equipment cannot effectively process the duplicated data.

Technical problem

In view of this, embodiments of the present application provide a method for transmitting data, a terminal device, and a network device, which enable the terminal device to effectively process duplicated data.

Technical solution

In a first aspect, a method for transmitting data is provided, the method comprising: receiving data in a plurality of hybrid automatic repeat request (HARQ) processes sent by network equipment; determining that data in each process of the plurality of HARQ processes is copied data of a PDCP protocol data unit PDU according to the plurality of HARQ processes; and carrying out merging processing or unified feedback on the copied data.

And determining which data in the HARQ processes belong to the duplicate data of the same PDCPPDU according to the plurality of transmitted HARQ processes, so that the terminal equipment can carry out combination processing or unified feedback on the duplicate data.

Generally, one HARQ entity may manage multiple HARQ processes, different HARQ entities may correspond to different physical carriers, and different HARQ entities may manage the same number or different numbers of HARQ processes. The data in the HARQ process received by the terminal device usually includes an identifier of the HARQ process, or may also include information of which HARQ entity the HARQ process belongs to.

The PDCP copies one pdcu to multiple copies by using a split bearer copy function, and maps the multiple copies to different RLC entities respectively, and the RLC entities place the copies on different logical channels for bearer, and further may configure some HARQ processes to send the copies carried on different logical channels to the terminal device for the MAC entity.

In a possible implementation manner, the receiving data in multiple HARQ processes sent by a network device, where the multiple HARQ processes correspond to multiple physical carriers one to one, includes: receiving data in the plurality of HARQ processes sent by the network equipment from the plurality of physical carriers.

Multiple copies of the duplicated data of the same PDCPPDU are sent by adopting different physical carriers, so that frequency diversity gain can be achieved, and the reliability of data transmission can be improved.

The multiple copies of the same PDCPPDU may not correspond to the physical carrier one to one, for example, there are five copies of the data, or one physical carrier may be used for two copies of the data, and another physical carrier may be used for three copies of the data.

In one possible implementation, the method further includes: receiving indication information sent by the network equipment on a first physical carrier in the plurality of physical carriers, wherein the indication information is used for indicating that data in the plurality of HARQ processes corresponding to the indication information are duplicated data; the determining, according to the plurality of HARQ processes, that data in each of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

In one possible implementation, the method further includes: receiving indication information sent by the network device on the plurality of physical carriers respectively, wherein the indication information is used for indicating that data in the HARQ process corresponding to the indication information is duplicated data; the determining, according to the plurality of HARQ processes, that data in each of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

Optionally, the indication information is carried in downlink control information DCI.

In a possible implementation manner, the determining, by the plurality of HARQ processes, that data in each process of the plurality of HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: and determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and first configuration information preconfigured through high-level signaling, wherein the first configuration information is used for indicating that the plurality of HARQ processes are HARQ processes for transmitting the duplicated data.

The network device may configure some HARQ processes managed by one HARQ entity in advance to transmit duplicate data and some others to transmit non-duplicate data. And the network device informs the terminal device of this configuration in a high-level signaling manner.

In a possible implementation manner, the determining, according to the multiple HARQ processes, that data in each of the multiple HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and second configuration information preconfigured through high-level signaling, wherein the second configuration information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

The network device may further configure a certain HARQ entity to correspond to a physical carrier, and may configure all HARQ processes in the HARQ entity to transmit the duplicated data, so that once the terminal device determines that the received HARQ process belongs to the HARQ process managed by the HARQ entity of this type, it may determine that the data in the received HARQ process is the duplicated data.

Optionally, the higher layer signaling is radio resource control RRC signaling.

In a second aspect, a method for transmitting data is provided, the method comprising: determining a plurality of hybrid automatic repeat request (HARQ) processes for transmitting duplicate data of the same packet data convergence layer protocol (PDCP) Protocol Data Unit (PDU); sending first information to a terminal device, wherein the first information is used for the terminal device to determine that data in the plurality of HARQ processes are the copied data; and transmitting the copied data to the terminal equipment by using the plurality of HARQ processes.

In one possible implementation manner, the sending the duplicate data to the terminal device by using the plurality of HARQ processes, where the plurality of HARQ processes correspond to a plurality of physical carriers one to one, includes: transmitting the duplicate data to the terminal device using the plurality of HARQ processes on the plurality of physical carriers.

In a possible implementation manner, the sending the first information to the terminal device includes: and sending the first information to the terminal equipment on a first physical carrier in the plurality of physical carriers, wherein the first information is used for indicating that the data in the plurality of HARQ processes corresponding to the indication information are duplicated data.

In a possible implementation manner, the sending the first information to the terminal device includes: and sending the first information to the terminal device on the plurality of physical carriers respectively, wherein the first information is used for indicating that the data in the HARQ process corresponding to the first information is duplicated data.

In a possible implementation manner, the multiple HARQ processes correspond to at least one HARQ entity, each HARQ entity in the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the sending the first information to the terminal device includes: and sending the first information to the terminal equipment through a high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes are the HARQ processes for transmitting the duplicated data.

In a possible implementation manner, the sending the first information to the terminal device, where the multiple physical carriers correspond to the same HARQ entity, includes: and sending the first information to the terminal equipment through high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or any possible implementation manner of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a network device configured to perform the method of the second aspect or any possible implementation manner of the first aspect. In particular, the network device comprises means for performing the method of the second aspect described above or any possible implementation of the second aspect.

In a fifth aspect, a terminal device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a network device is provided, which includes: memory, processor, input interface and output interface. The memory, the processor, the input interface and the output interface are connected through a bus system. The memory is configured to store instructions and the processor is configured to execute the instructions stored by the memory for performing the method of the second aspect or any possible implementation manner of the second aspect.

In a seventh aspect, a computer storage medium is provided for storing computer software instructions for executing the method of the first aspect or any possible implementation manner of the first aspect, or the method of the second aspect or any possible implementation manner of the second aspect, and the computer storage medium contains a program designed for executing the above aspects.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Advantageous effects

The embodiment of the application provides a data transmission method, terminal equipment and network equipment, which can enable the terminal equipment to effectively process copied data.

Drawings

Fig. 1 is a schematic diagram illustrating an application scenario according to an embodiment of the present application.

Fig. 2 shows a protocol architecture diagram for replicated data transmission in a carrier aggregation scenario.

Fig. 3 shows a schematic block diagram of a method of transmitting data of an embodiment of the present application.

Fig. 4 is a diagram illustrating a protocol architecture of a method of transmitting data according to an embodiment of the present application.

Fig. 5 is a diagram illustrating another protocol architecture of a method of transmitting data according to an embodiment of the present application.

Fig. 6 shows another schematic block diagram of a method of transmitting data according to an embodiment of the present application.

Fig. 7 shows a schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.

Fig. 8 shows a schematic block diagram of a network device for transmitting data according to an embodiment of the present application.

Fig. 9 shows another schematic block diagram of a terminal device for transmitting data according to an embodiment of the present application.

Fig. 10 shows another schematic block diagram of a network device for transmitting data according to an embodiment of the present application.

Best mode for carrying out the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE), a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX), or a 5G System in the future.

In particular, the technical solution of the embodiment of the present application may be applied to various communication systems based on a non-orthogonal multiple access technology, such as a Sparse Code Multiple Access (SCMA) system, a Low Density Signature (LDS) system, and the like, where the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application may be applied to a multi-Carrier transmission system using a non-orthogonal multiple access technology, for example, a non-orthogonal multiple access technology orthogonal Frequency Division Multiplexing (OFDM for short), a Filter bank multi-Carrier (FBMC for short), a general Frequency Division Multiplexing (GFDM for short), a Filtered orthogonal Frequency Division Multiplexing (Filtered-OFDM for short), and the like.

A terminal device in the embodiments of the present application may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, and the embodiments of the present application are not limited thereto.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base station (NodeB, NB) in a WCDMA system, an evolved node b (eNB or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the embodiment of the present invention is not limited.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application. The communication system in fig. 1 may include a terminal device 10 and a network device 20. The network device 20 is used to provide a communication service to the terminal device 10 and access a core network, and the terminal device 10 accesses the network by searching for a synchronization signal, a broadcast signal, or the like transmitted by the network device 20, thereby performing communication with the network. The arrows shown in fig. 1 may represent uplink/downlink transmissions over a cellular link between the terminal device 10 and the network device 20.

For ease of understanding, how the duplicate data is scheduled on different physical carriers will be briefly described below in connection with fig. 2. As shown in fig. 2, the PDCP layer has a split bearer replication function, and replicates the data process of the PDCP PDU1 to encapsulate into a PDCP PDU1 and a PDCP PDU2, where the PDCP PDU1 and the PDCP PDU2 have the same content, that is, the data payload and the header of the bearer are the same. The PDCP PDU1 and the PDCPPDU2 are respectively mapped to different Radio Link Control (RLC) entities, the RLC entity places the PDCP PDU1 and the PDCPPDU2 on different logical channels (logical channel 1 and logical channel 2), and for Media Access Control (MAC), after knowing which logical channels transmit duplicate data of the same PDCPPDU, the duplicate data are transmitted on different carriers through different hybrid automatic repeat request HARQ entities, for example, the duplicate data carried in the logical channel 1 is transmitted on the physical carrier 1 through the HARQ entity 1, and the duplicate data carried in the logical channel 2 is transmitted on the physical carrier 2 through the HARQ entity 2.

Under a carrier aggregation scene, the duplicated data function of PDCP is utilized, so that duplicated data (namely PDCP PDUs) correspond to two or more logic channels, and finally, a plurality of duplicated same PDCP PDUs can be transmitted on different physical layer aggregation carriers, thereby achieving frequency diversity gain and improving the reliability of data transmission.

After the MAC layer knows which logical channels transmit the duplicate data of the same PDCPPDU, how to instruct the terminal device, so that the terminal device can determine which duplicate data belong to the same PDCPPDU through the instruction, and further, the terminal device can perform possible combination acceptance processing on the determined duplicate data or optimize feedback information transmission.

Fig. 3 shows a schematic block diagram of a method 100 of transmitting data of an embodiment of the present application. As shown in fig. 3, an execution subject of the method 100 may be a terminal device, for example, a user equipment, and the method 100 includes:

s110, receiving data in a plurality of hybrid automatic repeat request (HARQ) processes sent by network equipment;

s120, determining data in each process of the plurality of HARQ processes to be the copied data of the same packet data convergence layer protocol PDCP protocol data unit PDU according to the plurality of HARQ processes;

and S130, carrying out merging processing or unified feedback on the copied data.

Specifically, when determining to transmit the duplicate data of the PDCPPDU1, the network device may first determine which HARQ processes are used to transmit the duplicate data, and transmit the duplicate data through the processes, and the network device may give some instructions to the terminal device to determine which data transmitted in which HARQ processes of multiple HARQ processes sent by the network device at the same time are the duplicate data, for example, which HARQ processes may be configured in advance for transmitting the duplicate data, and which HARQ processes are used for transmitting non-duplicate data, so after receiving the data in the multiple HARQ processes, the terminal device may determine which data transmitted in the HARQ processes are the duplicate data, and which data in the HARQ processes are the non-duplicate data according to the identification information of the HARQ processes and information preconfigured by the network device. Further, the terminal device may also determine which duplicated data in the HARQ processes belong to the same PDCPPDU. Further, after knowing which data in the HARQ process is the duplicate data carrying the same PDCP PDU, the terminal device may process the duplicate data of the same PDCP PDU, for example, only one duplicate data may be fed back, and the remaining same data are not fed back, so that feedback overhead may be saved.

Therefore, the embodiment of the present application provides a method for transmitting data, which transmits duplicate data by configuring some HARQ processes, and informs a terminal which data in the HARQ processes are duplicate data, so that a terminal device may perform possible combining reception or optimized feedback on the determined duplicate data.

It should be appreciated that the terminal device may receive duplicate data belonging to multiple PDCPPDUs at the same time. Wherein each copy of data is transmitted using one HARQ process. The network device may divide a plurality of HARQ processes into a plurality of groups according to HARQ entities, for example, the MAC layer has two HARQ entities, namely, HARQ entity a and HARQ entity b, where the HARQ entity a manages 3 HARQ processes, HARQ1a, HARQ2a, and HARQ3a respectively, and the HARQ entity b manages 5 HARQ processes, HARQ1b, HARQ 2b, HARQ 3b, HARQ4b, and HARQ5b respectively. The network device may configure 2 HARQ processes managed by HARQ entity a for transmitting duplicate data of one PDCP PDU and 4 HARQ processes managed by HARQ entity b for transmitting duplicate data of another PDCP PDU. If the network device determines that there are two copies of PDCP PDUs to be transmitted, and the two copies of PDCP PDU1 are two copies, and the three copies of PDCP PDUs are three copies, the network device may transmit the copies of PDCP PDU1 using two HARQ processes, HARQ1a and HARQ2a, managed by HARQ entity a, and may transmit the copies of PDCP PDU2 using 4 HARQ processes, HARQ1b, HARQ 2b, HARQ 3b, and HARQ4b, managed by HARQ entity b. After receiving the data in the six HARQ processes of HARQ1a, HARQ2a, HARQ1b, HARQ 2b, HARQ 3b, and HARQ4b, the terminal device may determine that the data in HARQ1a and HARQ2a is the duplicated data of the same PDCP PDU and the data in HARQ1b, HARQ 2b, HARQ 3b, and HARQ4b is the duplicated data of another PDCP PDU according to the type of HARQ process managed by each pre-configured HARQ entity, that is, the type for transmitting duplicated data and the type for transmitting non-duplicated data.

The network device may not group HARQ processes according to HARQ entities, that is, the network device may directly configure a plurality of HARQ processes to belong to group 1, and another plurality of HARQ processes to belong to group 2. Taking the above as an example, the network device may configure HARQ1a managed by HARQ entity a and HARQ1b managed by HARQ entity b as group 1, configure other HARQ processes managed by HARQ entity a and other processes managed by HARQ entity b as group 2, and the terminal device may further determine, according to the received identification information of the HARQ processes, which HARQ processes are in one group and which HARQ processes belong to another group, and further determine, according to an indication or pre-configuration of the network device, which data transmitted in the HARQ processes in the same group are the duplicate data.

Optionally, in this embodiment of the present application, the one-to-one correspondence between the multiple HARQ processes and multiple physical carriers, where the receiving data in the multiple HARQ processes sent by the network device includes: and receiving the data in the plurality of HARQ processes sent by the network equipment from the plurality of physical carriers.

The network device may configure a corresponding relationship between multiple HARQ processes and physical carriers, specifically, may configure a corresponding relationship between HARQ entities and physical carriers, for example, the network device may configure one HARQ entity corresponding to one physical carrier. That is, if the HARQ entity a corresponds to the physical carrier 1 and the HARQ entity b corresponds to the physical carrier 2, the data in the HARQ1a and the HARQ2a managed by the HARQ entity a is transmitted on the physical carrier 1, and the data in the HARQ1b, the HARQ 2b, the HARQ 3b, the HARQ4b, and the HARQ5b managed by the HARQ entity b is transmitted on the physical carrier 2. Similarly, if HARQ1a and HARQ1b are used to transmit duplicate data of PDCP PDU1, the terminal device may receive the data in HARQ1a and HARQ1b on physical carrier 1 and physical carrier 2, respectively, and may determine that the data in HARQ1a and HARQ1b are duplicate data, and the network device sends the duplicate data of the same PDCP PDU to the terminal device through different carriers, thereby achieving frequency diversity gain to improve data transmission reliability.

It should be understood that different HARQ entities may manage different numbers or numbers of HARQ processes, and the identification of the HARQ processes managed by different HARQ entities within the group may be the same or different, for example, two HARQ processes managed by HARQ entity a may be identified as HARQ1 and HARQ2 within the group, and five HARQ processes managed by HARQ entity b may be identified as HARQ1, HARQ2, HARQ3, HARQ4, and HARQ5 within the group, and the embodiments of the present application are not limited thereto.

It should also be understood that the network device may configure multiple HARQ processes within the same HARQ entity into two categories, one for transmitting duplicate data and one for transmitting non-duplicate data. For example, the network device may configure HARQ1a in HARQ entity a as a HARQ process for transmitting duplicate data and HARQ2a as a HARQ process for transmitting non-duplicate data. The network device may also send the configuration of the type of the HARQ process managed in each HARQ entity to the terminal device, so that after the terminal device receives data transmitted by multiple HARQ processes, it can determine which data in the HARQ processes belong to the duplicate data in the same PDCPPDU according to the type of each HARQ process by looking up the configuration.

Optionally, in an embodiment of the present application, the method further includes: receiving indication information sent by the network equipment on a first physical carrier in the plurality of physical carriers, wherein the indication information is used for indicating that data in each HARQ process in the plurality of HARQ processes corresponding to the indication information is duplicated data; determining that data in each process of the plurality of HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU according to the plurality of HARQ processes, comprising: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

Optionally, in an embodiment of the present application, the method further includes: receiving indication information sent by the network device on the plurality of physical carriers respectively, wherein the indication information is used for indicating that data in the HARQ process corresponding to the indication information is duplicated data; determining that data in each process of the plurality of HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU according to the plurality of HARQ processes, comprising: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

Specifically, the network device dynamically indicates to the terminal device which HARQ processes belong to the duplicated data of the same PDCPPDU. For example, the Downlink Control Information (DCI) may dynamically indicate that data in multiple HARQ processes are duplicate data belonging to the same PDCPPDU. One HARQ process may be configured to correspond to one carrier, that is, before receiving data in a corresponding HARQ process on multiple carriers, the terminal device receives DCI on each carrier, where an information indication field may be added in the DCI, for example, a Data Duplication Indication (DDI), whose value is on/off, if the value is on, the data transmitted in the HARQ process corresponding to the DCI is identified as duplicated data, and if the value is off, the data transmitted in the HARQ process corresponding to the DCI is identified as non-duplicated data. Here, the DCI which may be transmitted to the terminal device via one carrier includes whether data in all HARQ processes transmitted by the network device on multiple carriers is duplicate data. For example, the network device sends data in 5 HARQ processes to the terminal device, where two HARQ processes correspond to one HARQ entity, the other three HARQ processes correspond to another HARQ entity, the HARQ entities corresponding to the two HARQ processes correspond to a physical carrier 1, the HARQ entities corresponding to the three HARQ processes correspond to a physical carrier 2, the network device may send a DCI on the physical carrier 1, where the DCI indicates whether the data in the two HARQ processes corresponding to the physical carrier 1 is duplicated data, and the network device may send a DCI on the physical carrier 2, where the DCI indicates whether the data in the three HARQ processes corresponding to the physical carrier 2 is duplicated data. And then the terminal equipment can firstly judge which HARQ processes transmit the same PDCP PDU, and directly transmit whether the data of the HARQ processes in the same PDCP PDU is the copied data according to the corresponding indication information.

It should be understood that, in case of DCI dynamic indication, it may not be limited whether the HARQ processes belong to different HARQ entities or the same HARQ entity.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to at least one HARQ entity, where each HARQ entity in the at least one HARQ entity manages at least one HARQ process used for transmitting duplicate data, and determining, according to the multiple HARQ processes, that data in each process of the multiple HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: and determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and first configuration information preconfigured through high-level signaling, wherein the first configuration information is used for indicating that the plurality of HARQ processes are HARQ processes for transmitting the duplicated data.

If the terminal device does not obtain the indication information in the DCI, the terminal device may determine which data in the HARQ processes belong to the duplicated data in the same PDCPPDU according to the configuration of the network device for the type of each HARQ process. For example, the terminal device receives the 7 HARQ processes, and respectively manages HARQ1a and HARQ2a for HARQ entity a and HARQ1b, HARQ 2b, HARQ 3b, HARQ4b, and HARQ5b for HARQ entity b, finds that HARQ1a, HARQ1b, HARQ 2b, and HARQ5b are of duplicate data types through table lookup, and HARQ1a and HARQ1b are in the same group, and then the terminal device may determine that the data in HARQ1a and HARQ1b are duplicate data of the same PDCPPDU.

Optionally, in this embodiment of the present application, the determining, according to the multiple HARQ processes, that data in each process of the multiple HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes: and determining that the data in each HARQ process in the plurality of HARQ processes is the copied data of the same PDCPPDU according to the plurality of HARQ processes and second configuration information preconfigured through high-level signaling, wherein the second configuration information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

Different from the prior art that one HARQ entity corresponds to one physical carrier, the network device may also configure one HARQ entity to correspond to multiple physical carriers, and the network device may configure all HARQ processes managed by a certain HARQ entity in the HARQ entity as HARQ processes for transmitting duplicate data of a certain PDCPPDU. For example, the network device may configure HARQ entity a to correspond to physical carrier 1 and physical carrier 2, and may configure HARQ entity a to manage HARQ1a, HARQ2a, and HARQ3a, and the network device may configure all HARQ processes in HARQ entity a to be used for transmitting duplicate data in the same PDCPPDU, and when the terminal device receives HARQ2a and HARQ3a sent by the network device, through table lookup, it may be determined that HARQ2a and HARQ3a belong to HARQ entities corresponding to 2 physical carriers, and further, the terminal device may determine that data in the two HARQ processes currently belong to duplicate data.

It should be understood that multiple HARQ processes managed by HARQ entities corresponding to multiple physical carriers are transmitted simultaneously on multiple carriers. For example, the HARQ entity corresponding to multiple physical carriers manages two HARQ processes, HARQ process 1 and HARQ process 2, and the MAC scheduler may simultaneously schedule HARQ process 1 and HARQ process 2 for simultaneous transmission on the two physical carriers.

Optionally, in this embodiment of the present application, the higher layer signaling is radio resource control RRC signaling.

Two embodiments of the present application will be described in detail below in conjunction with fig. 4 and 5.

In the first embodiment, as shown in fig. 4, a physical carrier 1 corresponds to an HARQ entity a, and a physical carrier 2 corresponds to an HARQ entity b. The HARQ processes in the HARQ entity a are divided into two types, one is a category for transmitting duplicate data, i.e. DDC: data replication, one category for transmitting non-replicated data, NDDC: non data replication. The logical channel 1 and the logical channel 2 are logical channels respectively carrying duplicated data, the duplicated data arrives at the MAC layer, and the MAC schedules the duplicated data to 1a of the HARQ entity a and 1b of the HARQ entity b, respectively. The terminal can know that the data corresponding to HARQ process 1a and HARQ process 1b are duplicate data on carriers 1 and 2 according to the category.

In the second embodiment, as shown in fig. 5, physical carrier 1 and physical carrier 2 both correspond to a shared HARQ entity. The HARQ processes in the shared HARQ entity are all HARQ processes transmitting duplicated data, and are identified as {1,2,3,4 }. The logical channel 1 and the logical channel 2 are logical channels respectively carrying duplicated data, the duplicated data reaches the MAC layer, and the MAC schedules the duplicated data to the HARQ process 1 and the HARQ process 2 of the shared HARQ entity respectively. The terminal can know that the data corresponding to the HARQ processes 1 and 2 are duplicated data on the carriers 1 and 2 according to the shared HARQ entity configuration.

Fig. 6 shows a schematic block diagram of a method 200 of transmitting data according to an embodiment of the present application. As shown in fig. 6, an execution subject of the method 200 is a network device, which may be executed by a base station, for example, and the method 200 includes:

s210, determining a plurality of hybrid automatic repeat request (HARQ) processes for transmitting the duplicated data of the same packet data convergence layer protocol (PDCP) Protocol Data Unit (PDU);

s220, sending first information to a terminal device, where the first information is used for the terminal device to determine that data in the multiple HARQ processes is the duplicated data;

s230, sending the duplicated data to the terminal device by using the plurality of HARQ processes.

Therefore, the embodiment of the present application provides a method for transmitting data, which transmits duplicate data by configuring some HARQ processes, and informs a terminal which data in the HARQ processes are duplicate data, so that a terminal device can perform possible combined reception or optimized feedback on the determined duplicate data.

Optionally, in this embodiment of the present application, the one-to-one correspondence between the multiple HARQ processes and multiple physical carriers, where sending the duplicated data to the terminal device by using the multiple HARQ processes includes: the duplicate data is sent to the terminal device using the plurality of HARQ processes on the plurality of physical carriers.

Optionally, in this embodiment of the present application, the sending the first information to the terminal device includes: and sending the first information to the terminal equipment on a first physical carrier in the plurality of physical carriers, wherein the first information is used for indicating that the data in the plurality of HARQ processes corresponding to the indication information are duplicated data.

Optionally, in this embodiment of the present application, the sending the first information to the terminal device includes: and sending the first information to the terminal device on the plurality of physical carriers respectively, wherein the first information is used for indicating that the data in the HARQ process corresponding to the first information is duplicated data.

Optionally, in this embodiment of the present application, the indication information is carried in downlink control information DCI.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to at least one HARQ entity, where each HARQ entity in the at least one HARQ entity includes at least one HARQ process for transmitting duplicate data, and the sending the first information to the terminal device includes: and sending the first information to the terminal equipment through high-layer signaling, wherein the first information is used for indicating the plurality of HARQ processes as the HARQ processes for transmitting the duplicated data.

Optionally, in this embodiment of the present application, the sending of the first information to the terminal device, where the multiple physical carriers correspond to the same HARQ entity, includes: and sending the first information to the terminal equipment through high-layer signaling, wherein the first information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to at least two HARQ entities, and different HARQ entities in the at least two HARQ entities correspond to different physical carriers.

It should be noted that the indication information, the first configuration information, and the second configuration information described on the terminal device side may be the first information described on the network device side, and here, for convenience of description, the indication information, the first configuration information, and the second configuration information are referred to as first information.

It should be understood that the interaction and related features, functions, etc. of the network device and the terminal device described by the network device correspond to the related features, functions, etc. of the terminal device. That is, what information is sent by the terminal device to the network device and what information is received by the network device accordingly. For brevity, no further description is provided herein.

It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Fig. 7 shows a schematic block diagram of a terminal device 300 for transmitting data according to an embodiment of the application. As shown in fig. 7, the terminal device 300 includes:

a first receiving unit 310, configured to receive data in multiple HARQ processes sent by a network device;

a determining unit 320, configured to determine, according to the multiple HARQ processes, that data in each process of the multiple HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU;

the processing unit 330 is configured to perform merging processing or unified feedback on the replicated data.

Therefore, the terminal device for transmitting data in the embodiment of the application determines which data in the HARQ processes belong to the duplicate data of the same PDCPPDU according to the multiple transmitted HARQ processes, so that the terminal device can perform possible combining processing or unified feedback on the duplicate data.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to multiple physical carriers one to one, and the first receiving unit 310 is specifically configured to: receiving data in the plurality of HARQ processes sent by the network equipment from the plurality of physical carriers.

Optionally, in this embodiment of the present application, the terminal device 300 further includes: a second receiving unit 340, configured to receive, on a first physical carrier of the multiple physical carriers, indication information sent by the network device, where the indication information is used to indicate that data in the multiple HARQ processes corresponding to the indication information is duplicated data; the determining unit 320 is specifically configured to: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

Optionally, in this embodiment of the present application, the terminal device 300 further includes: a third receiving unit 350, configured to receive, on the multiple physical carriers, indication information sent by the network device, where the indication information is used to indicate that data in a HARQ process corresponding to the indication information is duplicated data; the determining unit 320 is specifically configured to: and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to at least one HARQ entity, where each HARQ entity in the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the determining unit 320 is specifically configured to: and determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and first configuration information preconfigured through high-level signaling, wherein the first configuration information is used for indicating that the plurality of HARQ processes are HARQ processes for transmitting the duplicated data.

Optionally, in this embodiment of the present application, the multiple physical carriers correspond to the same HARQ entity, and the determining unit 320 is specifically configured to: determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and second configuration information preconfigured through high-level signaling, wherein the second configuration information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

It should be understood that the terminal device 300 for transmitting data according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing corresponding flows of the terminal device in the methods of fig. 3 to fig. 5, and are not described herein again for brevity.

Fig. 8 shows a schematic block diagram of a network device 400 for transmitting data according to an embodiment of the application. As shown in fig. 8, the network device 400 includes:

a determining unit 410, configured to determine multiple HARQ processes for transmitting duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU;

a first sending unit 420, configured to send first information to a terminal device, where the first information is used for the terminal device to determine that data in the multiple HARQ processes is the duplicated data;

a second sending unit 430, configured to send the duplicated data to the terminal device using the multiple HARQ processes.

Therefore, the network device for transmitting data according to the embodiment of the present application configures some HARQ processes to transmit the duplicate data, and informs the terminal which data in the HARQ processes are the duplicate data, so that the terminal device can perform possible combining reception or optimized feedback on the determined duplicate data.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to multiple physical carriers one to one, and the second sending unit 430 is specifically configured to: transmitting the duplicate data to the terminal device using the plurality of HARQ processes on the plurality of physical carriers.

Optionally, in this embodiment of the application, the first sending unit 420 is specifically configured to: and sending the first information to the terminal equipment on a first physical carrier in the plurality of physical carriers, wherein the first information is used for indicating that the data in the plurality of HARQ processes corresponding to the indication information are duplicated data.

Optionally, in this embodiment of the application, the first sending unit 420 is specifically configured to: and sending the first information to the terminal device on the plurality of physical carriers respectively, wherein the first information is used for indicating that the data in the HARQ process corresponding to the first information is duplicated data.

Optionally, in this embodiment of the present application, the multiple HARQ processes correspond to at least one HARQ entity, each HARQ entity in the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the first sending unit 420 is specifically configured to: and sending the first information to the terminal equipment through a high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes are the HARQ processes for transmitting the duplicated data.

Optionally, in this embodiment of the present application, the multiple physical carriers correspond to the same HARQ entity, and the first sending unit 420 is specifically configured to: and sending the first information to the terminal equipment through high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.

It should be understood that the network device 400 for transmitting data according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the network device 400 are respectively for implementing corresponding flows of the network device in the methods of fig. 4 to fig. 6, and are not described herein again for brevity.

As shown in fig. 9, an embodiment of the present application further provides a terminal device 500 for transmitting data, where the terminal device 500 may be the terminal device 300 in fig. 7, which can be used to execute the content of the terminal device corresponding to the method 100 in fig. 3. The terminal device 500 includes: an input interface 510, an output interface 520, a processor 530 and a memory 540, the input interface 510, the output interface 520, the processor 530 and the memory 540 being connectable via a bus system. The memory 540 is used to store programs, instructions or code. The processor 530 is configured to execute the program, instructions or codes in the memory 540 to control the input interface 510 to receive signals, control the output interface 520 to send signals, and perform the operations in the foregoing method embodiments.

It should be understood that, in the embodiment of the present application, the processor 530 may be a Central Processing Unit (CPU), and the processor 530 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 530. A portion of memory 540 may also include non-volatile random access memory. For example, memory 540 may also store device type information.

In implementation, the various aspects of the methods described above may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 530. The contents of the method disclosed in connection with the embodiments of the present application may be directly embodied as a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540, and implements the content of the above method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.

In a specific embodiment, the first receiving unit 310, the second receiving unit 340 and the third receiving unit 350 in the terminal device 300 may be implemented by the input interface 510 in fig. 9, and the determining unit 320 and the processing unit 330 in the terminal device 300 may be implemented by the processor 530 in fig. 9.

As shown in fig. 10, an embodiment of the present application further provides a network device 600 for transmitting data, where the network device 600 may be the network device 400 in fig. 8, which can be used to execute the content of the network device corresponding to the method 200 in fig. 6. The network device 600 includes: an input interface 610, an output interface 620, a processor 630 and a memory 640, wherein the input interface 610, the output interface 620, the processor 630 and the memory 640 may be connected by a bus system. The memory 640 is used to store programs, instructions or code. The processor 630 is configured to execute the program, instructions or codes in the memory 640 to control the input interface 610 to receive signals, control the output interface 620 to transmit signals, and perform the operations in the foregoing method embodiments.

Therefore, the network device for transmitting data according to the embodiment of the present application configures some HARQ processes to transmit duplicate data, and informs the terminal which data in the HARQ processes are duplicate data, so that the terminal device can perform possible combining reception or optimized feedback on the determined duplicate data.

It should be understood that, in the embodiment of the present application, the processor 630 may be a Central Processing Unit (CPU), and the processor 630 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 640 may include a read-only memory and a random access memory, and provides instructions and data to the processor 630. A portion of the memory 640 may also include non-volatile random access memory. For example, the memory 640 may also store device type information.

In implementation, the various aspects of the methods described above may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 630. The contents of the method disclosed in connection with the embodiments of the present application may be directly embodied as a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and performs the above-mentioned method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.

In a specific embodiment, the determining unit 410 in the network device 400 may be implemented by the processor 630 in fig. 10, and the first sending unit 420 and the second sending unit 430 may be implemented by the output interface 620 in fig. 10.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

This functionality, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of transmitting data, comprising:

receiving data in a plurality of hybrid automatic repeat request (HARQ) processes sent by network equipment;

determining that data in each process of the plurality of HARQ processes is copied data of a PDCP protocol data unit PDU according to the plurality of HARQ processes;

and carrying out merging processing or unified feedback on the copied data.
The method as claimed in claim 1, wherein the plurality of HARQ processes correspond to a plurality of physical carriers one to one, and the receiving data in a plurality of HARQ processes sent by a network device comprises:

receiving data in the plurality of HARQ processes sent by the network equipment from the plurality of physical carriers.
The method of claim 2, further comprising:

receiving indication information sent by the network equipment on a first physical carrier in the plurality of physical carriers, wherein the indication information is used for indicating that data in the plurality of HARQ processes corresponding to the indication information are duplicated data;

the determining, according to the plurality of HARQ processes, that data in each of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes:

and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.
The method of claim 2, further comprising:

receiving indication information sent by the network device on the plurality of physical carriers respectively, wherein the indication information is used for indicating that data in the HARQ process corresponding to the indication information is duplicated data;

the determining, according to the plurality of HARQ processes, that data in each of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU includes:

and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.
The method according to claim 3 or 4, wherein the indication information is carried in downlink control information, DCI.
The method as claimed in claim 1, wherein the plurality of HARQ processes correspond to at least one HARQ entity, each HARQ entity of the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the determining, according to the plurality of HARQ processes, that data in each process of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU comprises:

and determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and first configuration information preconfigured through high-level signaling, wherein the first configuration information is used for indicating that the plurality of HARQ processes are HARQ processes for transmitting the duplicated data.
The method of claim 2, wherein the plurality of physical carriers correspond to a same HARQ entity, and wherein determining, according to the plurality of HARQ processes, that data in each of the plurality of HARQ processes is duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU comprises:

determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and second configuration information preconfigured through high-level signaling, wherein the second configuration information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.
The method according to claim 6 or 7, wherein the higher layer signaling is radio resource control, RRC, signaling.
The method of claim 1, wherein the plurality of HARQ processes correspond to at least two HARQ entities, and wherein different HARQ entities of the at least two HARQ entities correspond to different physical carriers.
A method of transmitting data, comprising:

determining a plurality of hybrid automatic repeat request (HARQ) processes for transmitting duplicate data of the same packet data convergence layer protocol (PDCP) Protocol Data Unit (PDU);

sending first information to a terminal device, wherein the first information is used for the terminal device to determine that data in the plurality of HARQ processes are the copied data;

and transmitting the copied data to the terminal equipment by using the plurality of HARQ processes.
The method of claim 10, wherein the plurality of HARQ processes correspond to a plurality of physical carriers one-to-one, and wherein the using the plurality of HARQ processes to send the duplicate data to the terminal device comprises:

transmitting the duplicate data to the terminal device using the plurality of HARQ processes on the plurality of physical carriers.
The method of claim 11, wherein sending the first information to the terminal device comprises:

and sending the first information to the terminal equipment on a first physical carrier in the plurality of physical carriers, wherein the first information is used for indicating that the data in the plurality of HARQ processes corresponding to the indication information are duplicated data.
The method of claim 11, wherein sending the first information to the terminal device comprises:

and sending the first information to the terminal device on the plurality of physical carriers respectively, wherein the first information is used for indicating that the data in the HARQ process corresponding to the first information is duplicated data.
The method according to claim 12 or 13, wherein the indication information is carried in downlink control information, DCI.
The method of claim 10, wherein the plurality of HARQ processes correspond to at least one HARQ entity, wherein each HARQ entity of the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and wherein sending the first information to the terminal device comprises:

and sending the first information to the terminal equipment through a high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes are the HARQ processes for transmitting the duplicated data.
The method of claim 11, wherein the multiple physical carriers correspond to a same HARQ entity, and wherein the sending the first information to the terminal device comprises:

and sending the first information to the terminal equipment through high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.
The method according to claim 15 or 16, wherein the higher layer signaling is radio resource control, RRC, signaling.
The method of claim 10, wherein the plurality of HARQ processes correspond to at least two HARQ entities, and wherein different HARQ entities of the at least two HARQ entities correspond to different physical carriers.
A terminal device for transmitting data, the terminal device comprising:

a first receiving unit, configured to receive data in multiple HARQ processes sent by a network device;

a determining unit, configured to determine, according to the multiple HARQ processes, that data in each of the multiple HARQ processes is duplicated data of a same packet data convergence layer protocol PDCP protocol data unit PDU;

and the processing unit is used for carrying out merging processing or unified feedback on the copied data.
The terminal device of claim 19, wherein the plurality of HARQ processes correspond to a plurality of physical carriers one to one, and the first receiving unit is specifically configured to:

receiving data in the plurality of HARQ processes sent by the network equipment from the plurality of physical carriers.
The terminal device of claim 20, wherein the terminal device further comprises:

a second receiving unit, configured to receive, on a first physical carrier of the multiple physical carriers, indication information sent by the network device, where the indication information is used to indicate that data in the multiple HARQ processes corresponding to the indication information is duplicated data;

the determining unit is specifically configured to:

and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.
The terminal device of claim 20, wherein the terminal device further comprises:

a third receiving unit, configured to receive, on the multiple physical carriers, indication information sent by the network device, where the indication information is used to indicate that data in an HARQ process corresponding to the indication information is duplicated data;

the determining unit is specifically configured to:

and determining that the data in each HARQ process in the plurality of HARQ processes is the duplicate data of the same PDCPPDU according to the plurality of HARQ processes and the indication information.
The terminal device according to claim 21 or 22, wherein the indication information is carried in downlink control information, DCI.
The terminal device of claim 19, wherein the plurality of HARQ processes correspond to at least one HARQ entity, each HARQ entity of the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the determining unit is specifically configured to:

and determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and first configuration information preconfigured through high-level signaling, wherein the first configuration information is used for indicating that the plurality of HARQ processes are HARQ processes for transmitting the duplicated data.
The terminal device of claim 20, wherein the multiple physical carriers correspond to a same HARQ entity, and the determining unit is specifically configured to:

determining that data in each HARQ process in the plurality of HARQ processes is duplicated data of the same PDCPPDU according to the plurality of HARQ processes and second configuration information preconfigured through high-level signaling, wherein the second configuration information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.
A terminal device according to claim 24 or 25, characterised in that the higher layer signalling is radio resource control, RRC, signalling.
The terminal device of claim 19, wherein the plurality of HARQ processes correspond to at least two HARQ entities, and wherein different HARQ entities of the at least two HARQ entities correspond to different physical carriers.
A network device for transmitting data, the network device comprising:

a determining unit, configured to determine multiple HARQ processes for transmitting duplicate data of a same packet data convergence layer protocol PDCP protocol data unit PDU;

a first sending unit, configured to send first information to a terminal device, where the first information is used by the terminal device to determine that data in the multiple HARQ processes is the duplicated data;

a second sending unit, configured to send the duplicated data to the terminal device using the multiple HARQ processes.
The network device of claim 28, wherein the plurality of HARQ processes correspond to a plurality of physical carriers one to one, and the second sending unit is specifically configured to:

transmitting the duplicate data to the terminal device using the plurality of HARQ processes on the plurality of physical carriers.
The network device of claim 29, wherein the first sending unit is specifically configured to:

and sending the first information to the terminal equipment on a first physical carrier in the plurality of physical carriers, wherein the first information is used for indicating that the data in the plurality of HARQ processes corresponding to the indication information are duplicated data.
The network device of claim 29, wherein the first sending unit is specifically configured to:

and sending the first information to the terminal device on the plurality of physical carriers respectively, wherein the first information is used for indicating that the data in the HARQ process corresponding to the first information is duplicated data.
The network device according to claim 30 or 31, wherein the indication information is carried in downlink control information, DCI.
The network device of claim 28, wherein the plurality of HARQ processes correspond to at least one HARQ entity, each HARQ entity of the at least one HARQ entity manages at least one HARQ process for transmitting duplicate data, and the first sending unit is specifically configured to:

and sending the first information to the terminal equipment through a high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes are the HARQ processes for transmitting the duplicated data.
The network device of claim 29, wherein the multiple physical carriers correspond to a same HARQ entity, and the first sending unit is specifically configured to:

and sending the first information to the terminal equipment through high-level signaling, wherein the first information is used for indicating that the plurality of HARQ processes belong to HARQ entities corresponding to the plurality of physical carriers.
The network device of claim 33 or 34, wherein the higher layer signaling is radio resource control, RRC, signaling.
The network device of claim 28, wherein the plurality of HARQ processes correspond to at least two HARQ entities, and wherein different HARQ entities of the at least two HARQ entities correspond to different physical carriers.