CN112449761B - Data transmission method and terminal equipment - Google Patents

Abstract

A method and terminal equipment for transmitting data can improve data transmission performance, and the method comprises the following steps: the terminal equipment detects first Downlink Control Information (DCI) and second DCI, wherein the first DCI is used for scheduling a first data channel, and the second DCI is used for scheduling a second data channel; the terminal equipment determines the relationship between the first data channel and the second data channel according to the transmission resources of the first DCI and the second DCI; and the terminal equipment sends or receives the first data channel and/or the second data channel according to the relation between the first data channel and the second data channel.

Description

A method and terminal equipment for transmitting data

This application claims the priority of the PCT patent application with the application number PCT/CN2018/116684 and the application name "A method and terminal equipment for transmitting data" submitted to the China Patent Office on November 21, 2018, the entire content of which is passed References are incorporated in this application.

technical field

The embodiment of the present application relates to the communication field, and in particular to a data transmission method and a terminal device.

Background technique

In a new radio (New Radio, NR) system, a network device can schedule different transmission points (Transmission/Reception Point, TRP) to simultaneously transmit the same data, so as to improve transmission reliability. Since the data at different transmission points are the same, the data transmitted by different TRPs may use the same Hybrid Automatic Repeat reQuest (HARQ) process. However, for the terminal device, it is impossible to distinguish whether the data in the same HARQ process scheduled by the network device through different (Downlink Control Information, DCI) is repeated transmission of the same data or two different data. In this case, how the terminal device distinguishes whether the same data or different data is scheduled by the network side so as to perform correct sending and receiving is an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a method for transmitting data and a terminal device, which can ensure that the terminal device correctly sends and receives data, thereby improving data transmission performance.

In a first aspect, a method for transmitting data is provided, including: a terminal device detects first downlink control information DCI and second DCI, wherein the first DCI is used to schedule a first data channel, and the second DCI It is used to schedule the second data channel; the terminal device determines the relationship between the first data channel and the second data channel according to the transmission resources of the first DCI and the second DCI; the terminal device determines the relationship between the first data channel and the second data channel according to The relationship between the first data channel and the second data channel is sending or receiving the first data channel and/or the second data channel.

A second aspect provides a terminal device configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes a unit configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.

In a third aspect, a terminal device is provided, where the terminal includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.

In a fourth aspect, a chip is provided for implementing the method in the above first aspect or various implementation manners thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes the method in the above first aspect or its various implementations.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a computer program product is provided, including computer program instructions, where the computer program instructions cause a computer to execute the method in the above first aspect or various implementation manners thereof.

In a seventh aspect, a computer program is provided, which, when running on a computer, causes the computer to execute the method in the above first aspect or various implementations thereof.

Based on the above technical solution, the terminal device can determine whether the data channels scheduled by the multiple DCIs carry the same data according to the transmission resources of multiple DCIs, which can ensure that the terminal device can correctly send and receive data, thereby improving data transmission. performance.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of a data transmission method provided by an embodiment of the present application.

Fig. 3 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

Fig. 4 is a schematic block diagram of a terminal device provided by another embodiment of the present application.

Fig. 5 is a schematic block diagram of a chip provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (Universal MobileTelecommunication System, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, a communication system 100 applied in this embodiment of the application is shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area. In one implementation, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved type base station (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (CloudRadio Access Network, CRAN), or the network device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device , wearable devices, hubs, switches, bridges, routers, network-side devices in the 5G network or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110 . As used herein, "terminal equipment" includes, but is not limited to, a connection via a wired line, such as via a Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM A broadcast transmitter; and/or an apparatus of another terminal device configured to receive/send communication signals; and/or an Internet of Things (Internet of Things, IoT) device. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/Internet PDAs with network access, Web browsers, organizers, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices including radiotelephone transceivers device. The terminal equipment may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or user device. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved PLMNs, etc.

In an implementation manner, terminal devices 120 may perform terminal direct connection (Device to Device, D2D) communication.

In an implementation manner, a 5G system or a 5G network may also be called a New Radio (New Radio, NR) system or an NR network.

FIG. 1 exemplarily shows one network device and two terminal devices. In an implementation manner, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. , which is not limited in this embodiment of the present application.

In an implementation manner, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.

It should be understood that a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions. The network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In this communication system, if the terminal device reports NACK for certain downlink data in the Acknowledgment (ACK)/Negative ACKnowledgment (NACK) report, or the network device does not detect the uplink data, the network The device needs to schedule the retransmission of the data through the DCI, and the retransmission and the initial transmission can use the same HARQ process. After the retransmission data is detected correctly, the HARQ process can be released, so that the network device can schedule new data transmission on the HARQ process.

Moreover, in the communication system, the network device can schedule different transmission points (Transmission/Reception Point, TRP) to transmit the same data at the same time, and improve transmission reliability by repeatedly sending the same data. Since the data transmitted by different TRPs is the same, the same HARQ process can also be used. In this case, for the terminal device, it is impossible to distinguish that the data in the same HARQ process scheduled by the network device through two DCIs is the repetition of the same data. The transmission is still two different data (that is, the latter data is the scheduling of a new data), therefore, the terminal device cannot combine the data scheduled by the two DCIs, which affects the transmission performance.

In view of this, the embodiment of the present application provides a method for transmitting data, and the terminal device can determine the relationship between the data channels scheduled by the two DCIs according to the transmission resources of the two DCIs sent by the network device, so that the The data channels scheduled by the two DCIs are processed accordingly. For example, when the data carried in the data channels scheduled by the two DCIs is the same, the data channels scheduled by the two DCIs are combined and demodulated or combined. Feedback, etc., are beneficial to improve transmission performance.

FIG. 2 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application. The method may be executed by a terminal device in the communication system shown in FIG. 1. As shown in FIG. 2, the method 200 includes:

S210. The terminal device detects first downlink control information DCI and second DCI, where the first DCI is used to schedule a first data channel, and the second DCI is used to schedule a second data channel;

S220. The terminal device determines a relationship between the first data channel and the second data channel according to transmission resources of the first DCI and the second DCI;

S230. The terminal device sends or receives the first data channel and/or the second data channel according to the relationship between the first data channel and the second data channel.

In some embodiments, the first DCI and the second DCI are two adjacent DCIs for scheduling the HARQ process. That is, no other DCI schedules data in the HARQ process between the first DCI and the second DCI.

In some embodiments, the first DCI and the second DCI may include HARQ process indication information, and the HARQ process indication information included in the first DCI and the second DCI indicates the same HARQ process.

For example, the DCI may include 4-bit HARQ process indication information for indicating one HARQ process in 16 HARQ processes, and the 4-bit HARQ process indication information in the first DCI and the second DCI may indicate the same value.

In some embodiments, the data channels scheduled by the first DCI and the second DCI both carry new data transmission. That is, the data carried in the data channels scheduled by the first DCI and the second DCI are both initial transmissions, not retransmissions.

Specifically, the DCI may include new data (New Data Indicator, NDI) indication information, which is used to indicate whether the data channel scheduled by the DCI is used to bear new data.

For example, the DCI may include 1-bit NDI indication information, and the different values of the 1-bit NDI indication information are used for whether the data channel scheduled by the DCI is used to carry new data or retransmit data. For example, the 1-bit NDI indication When the information is 1, it indicates new data, and when it is 0, it indicates retransmission of data. Then, in the embodiment of the present application, the value of the NDI indication information included in the first DCI and the second DCI may both be 1, which is used to indicate that the data channel scheduled by the DCI is used to bear new data transmission.

In this embodiment of the present application, the transmission resources of the first DCI and the second DCI may be, for example, time domain resources, frequency domain resources, control resource sets (Control Resource Set, CORESET) of the first DCI and the second DCI, search Space or beam, or other resources that can be used to transmit DCI.

In this embodiment of the application, the relationship between the first data channel and the second data channel may include at least one of the following:

Whether the data carried in the first data channel and the second data channel are the same;

Whether the spatial transmission filter (Spatialtransmission filter) or the beam used by the first data channel and the second data channel are the same;

Whether the ACK/NACK feedback information of the first data channel and the second data channel are reported together;

Whether the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information.

It should be understood that in this embodiment of the present application, reporting the ACK/NACK feedback information of the first data channel and the second data channel together may mean that the ACK/NACK feedback information corresponding to the first data channel and the second data channel are performed through the same message. Reporting, whether the same feedback information is used for reporting is not limited, that is, the message may include independent ACK/NACK feedback information for the two data channels, or the same ACK/NACK feedback information.

In this embodiment of the application, S220 may include at least one of the following:

According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located The search space, determine whether the data carried in the first data channel and the second data channel are the same, recorded as embodiment 1;

According to the time interval between the first DCI and the second DCI, determine whether the spatial transmission filters used by the first data channel and the second data channel are the same, which is recorded as Embodiment 2;

According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located In the search space of the first data channel and the second data channel, determine whether the confirmation/negative determination ACK/NACK feedback information is reported together, which is recorded as embodiment 3;

According to the time interval between the first DCI and the second DCI, determine whether the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information, recorded as an embodiment 4.

In this embodiment of the present application, the time interval between the first DCI and the second DCI may be the time slot where the terminal device detects the first DCI and the time when the terminal device detects the second DCI or, it may be a symbol offset between the OFDM symbol where the terminal device detects the first DCI and the OFDM symbol where the second DCI is detected.

In Embodiment 1, the terminal device may, according to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or the The search spaces where the first DCI and the second DCI are located determine whether the data carried in the first data channel and the second data channel are the same.

As an optional embodiment of Embodiment 1, the terminal device may determine the data carried in the first data channel and the second data channel according to the time interval between the terminal device detecting the first DCI and the second DCI Is it the same. For example, the terminal device may determine that the data carried in the first data channel and the second data channel are the same when the time interval between detecting the first DCI and detecting the second DCI is less than or equal to a first threshold; When the time interval between the DCI and the detection of the second DCI is greater than the first threshold, it is determined that the data carried in the first data channel and the second data channel are different.

Or, in some implementation manners, if the time interval between the terminal device detecting the first DCI and the second DCI is greater than the first threshold, the terminal device may also A data indicator (NDI, New Data Indicator), determining whether the data carried in the first data channel and the second data channel are the same. For example, if NDI indicates new data transmission (for example, the value of NDI is 1), the data carried in the first data channel and the second data channel are different; or, if NDI indicates data retransmission (for example, the value of NDI is is 0), then the data carried in the first data channel and the second data channel are the same.

In some optional embodiments, the first threshold may be a time interval between the terminal device detecting the first DCI and transmitting ACK/NACK feedback information of the first data channel.

In a specific implementation, the network device may indicate to the terminal device the time interval between the terminal device detecting the first DCI and transmitting the ACK/NACK feedback information of the first data channel through the first DCI . For example, the network device may indicate multiple candidate values through RRC signaling, and then indicate a specific value among the multiple candidate values through the first DCI.

In some embodiments, the time interval may be a time slot offset between the time slot for detecting the first DCI and the time slot for transmitting the ACK/NACK feedback information of the first data channel; An OFDM symbol offset between the OFDM symbol of the first DCI and the OFDM symbol for transmitting the ACK/NACK feedback information of the first data channel.

In some embodiments, the time interval is in units of slots or OFDM symbols.

In some embodiments, the time interval may be based on a subcarrier interval used for transmitting the first DCI, or may be based on a subcarrier interval used for transmitting ACK/NACK feedback information of the first data channel.

If the first threshold can be the time interval between the terminal device detecting the first DCI and transmitting the ACK/NACK feedback information of the first data channel, the first DCI and detecting the second DCI The relationship between the time interval and the first threshold may have the following two situations:

Case 1: The time interval between the terminal device detecting the first DCI and detecting the second DCI is less than or equal to the first threshold, which means that the terminal device detects the second DCI no later than the transmission time Time for the ACK/NACK feedback information of the first data channel. For example, the time slot in which the terminal device detects the second DCI is before the time slot in which the ACK/NACK feedback information of the first data channel is transmitted, or the two are in the same time slot. For another example, the terminal device detects that the OFDM symbol of the second DCI is before the OFDM symbol of transmitting the ACK/NACK feedback information of the first data channel, or both are in the same OFDM symbol. In this case, the terminal device may determine that the data carried in the first data channel and the second data channel are the same.

Situation 2: The time interval between the terminal device detecting the first DCI and detecting the second DCI is greater than the first threshold, which means that the terminal detects the second DCI later than transmitting the first data Time for channel ACK/NACK feedback information. For example, the time slot in which the terminal detects the second DCI is after the time slot in which the ACK/NACK feedback information of the first data channel is transmitted; or, the terminal detects that the OFDM symbol of the second DCI is transmitting the first data After the OFDM symbol of the ACK/NACK feedback information of the channel. In this case, the terminal device may determine that the data carried in the first data channel and the second data channel are different; or, the terminal device may determine that the first data Whether the data carried in the channel and the second data channel are the same.

In an implementation manner, the first threshold may be N time slots, or M symbols, etc., where N and M are positive integers.

In an implementation manner, the first threshold may be preset on the terminal device, for example, the first threshold stipulated in the protocol may be preset on the terminal device; or the first threshold may also be set by the network For device configuration, for example, the network device may send high-layer signaling, such as radio resource control (Radio Resource Control, RRC) signaling, or physical layer signaling, such as physical downlink control channel (Physical Downlink Control Channel, PDCCH) to the terminal The device configures the first threshold.

In an implementation manner, the time interval may be in units of time slots or Orthogonal frequency-division multiplexing (OFDM) symbols, that is to say, the time interval may be one or more time slots, or Can also be one or more symbols. It should be understood that the time interval may also be measured by other time units, which is not specifically limited in this embodiment of the present application.

As another optional embodiment of Embodiment 1, the terminal device may determine whether the time unit for detecting the first DCI and the time unit for detecting the second DCI is the same time unit, and determine that the first data channel and the second data channel carry are the same data.

For example, the terminal device may determine that the data carried in the first data channel and the second data channel are the same when the time unit for detecting the first DCI and the time unit for detecting the second DCI are the same; otherwise, determine that the first data channel The data carried in the channel and the second data channel are different.

For another example, if the time unit (for example, time slot or symbol) where the terminal device detects the first DCI and the second DCI is different, the terminal device may determine the Whether the data carried in the first data channel and the second data channel are the same. For example, if NDI indicates new data transmission (for example, the value of NDI is 1), the data carried in the first data channel and the second data channel are different; or, if NDI indicates data retransmission (for example, the value of NDI is is 0), then the data carried in the first data channel and the second data channel are the same.

In an implementation manner, the one time unit may be one or more time slots, or one or more symbols, and the same time unit may be the same time slot or the same symbol.

It can be understood that adjacent or similar DCIs are more likely to schedule the same data. When the time interval between the two DCIs is short, the terminal device determines that the data scheduled by the two DCIs is the same, and further compares the two DCIs. Data is merged, for example, combined demodulation or combined feedback, so as to save transmission resources and improve transmission performance.

As another optional embodiment of Embodiment 1, the terminal device may determine the data carried in the first data channel and the second data channel according to the CORESET and/or search space where the first DCI and the second DCI are located. Is it the same.

For example, the terminal device may determine that the data carried in the first data channel and the second data channel are different when the first DCI and the second DCI are transmitted in the same CORESET; The data carried in the data channel is the same.

For another example, the terminal device may determine that the data carried in the first data channel and the second data channel are different when the first DCI and the second DCI are transmitted in the same search space; The data carried in the second data channel is the same.

For another example, if the CORESET or search space where the first DCI and the second DCI are located are the same, the terminal device may further determine the first data channel and the second DCI according to the NDI in the second DCI. Whether the data carried in the two data channels are the same. For example, if NDI indicates new data transmission (for example, the value of NDI is 1), the data carried in the first data channel and the second data channel are different; or if NDI indicates data retransmission (for example, the value of NDI is 0), then the data carried in the first data channel and the second data channel are the same.

In Embodiment 2, the terminal device may determine whether the spatial transmission filters adopted by the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI .

For example, when the time interval between detecting the first DCI and detecting the second DCI is less than or equal to the second threshold, the terminal device may determine the spatial filtering adopted by the spatial transmission filter adopted by the first data channel and the second data channel. When the time interval between detecting the first DCI and detecting the second DCI is greater than a second threshold, it is determined that the spatial filters used by the spatial transmission filters used by the first data channel and the second data channel are different.

It should be understood that for the specific implementation of the second threshold, reference may be made to the specific implementation of the first threshold in Embodiment 1, which will not be repeated here.

In Embodiment 3, the terminal device may, according to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or the The search space where the first DCI and the second DCI are located determines whether the positive/negative determination ACK/NACK feedback information of the first data channel and the second data channel are reported together. Specifically, reporting the ACK/NACK feedback information of the two data channels together may refer to reporting through the same physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resource, and correspondingly, the ACK/NACK feedback information of the two data channels Not reporting the information together may refer to separately reporting the corresponding ACK/NACK through different PUSCH resources.

As an optional embodiment of Embodiment 3, when the time interval between detecting the first DCI and detecting the second DCI is less than or equal to a third threshold, the terminal device may determine the difference between the first data channel and the second data channel ACK/NACK feedback information is reported together, or, when the time interval between detecting the first DCI and detecting the second DCI is greater than the third threshold, it is determined that the ACK/NACK feedback information of the first data channel and the second data channel are different report.

As another optional embodiment of Embodiment 3, when the time unit for detecting the first DCI and the time unit for detecting the second DCI are the same time unit, the terminal device may determine the time interval between the first data channel and the second data channel ACK/NACK feedback information is reported together, or, when the time unit for detecting the first DCI and detecting the second DCI is a different time unit, it is determined that the ACK/NACK feedback information of the first data channel and the second data channel are different report.

As another optional embodiment of Embodiment 3, the terminal device may determine the first data channel and the second data channel when the CORESET where the first DCI and the second DCI are located is the same CORESET. The ACK/NACK feedback information is reported together; otherwise, it is determined that the ACK/NACK feedback information of the first data channel and the second data channel are not reported together.

Or, in other optional embodiments, the terminal device may determine the ACK/NACK feedback information of the first data channel and the second data channel when the first DCI and the second DCI are in the same search space Report together, otherwise, determine that the ACK/NACK feedback information of the first data channel and the second data channel are not reported together.

It should be understood that for the specific realization of the third threshold, reference may be made to the specific realization of the first threshold in Embodiment 1, which will not be repeated here.

In Embodiment 4, the terminal device may determine whether the first data channel and the second data channel are fed back through the same ACK/NACK according to the time interval between the first DCI and the second DCI Information reporting ACK/NACK.

As an optional embodiment of Embodiment 4, when the time interval between detecting the first DCI and detecting the second DCI is less than or equal to a fourth threshold, the terminal device may determine the difference between the first data channel and the second data channel ACK/NACK is reported through the same ACK/NACK feedback information, or, when the time interval between detecting the first DCI and detecting the second DCI is greater than the fourth threshold, determine the ACK/NACK of the first data channel and the second data channel Do not report through the same ACK/NACK feedback information.

Specifically, here, the ACK/NACK of the two data channels is reported through the same ACK/NACK feedback information, which means that only one ACK/NACK information is reported for the two data channels. For example, if one of the data channels is correctly demodulated, ACK can be reported, otherwise NACK can be reported.

Correspondingly, instead of reporting the ACK/NACK of the two data channels through the same ACK/NACK feedback information, it may refer to reporting one ACK/NACK information for the two data channels respectively. For example, if the first data channel is correctly demodulated, an ACK may be reported for the first data channel; otherwise, a NACK may be reported, and the same is true for the second data channel.

It should be understood that for the specific realization of the fourth threshold, reference may be made to the specific realization of the first threshold in Embodiment 1, which will not be repeated here.

It should be noted that the above embodiment 1-embodiment 4 can be implemented alone or in combination, and specific embodiments in a single embodiment can be implemented alone or in combination, which is not limited in this embodiment of the present application, for example , the terminal device may determine that the first The data carried in the data channel and the second data channel are the same; otherwise, it is determined that the data carried in the first data channel and the second data channel are not equal.

In an implementation manner, in the embodiment of the present application, the first data channel scheduled by the first DCI may be an uplink data channel, such as PUSCH, or may also be a downlink data channel, such as a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and so on.

Similarly, the second data channel scheduled by the second DCI may also be an uplink data channel, such as PUSCH, or a downlink data channel, such as PDSCH.

Then, the relationship between the first data channel and the second data channel may have the following four situations:

Case 1: Both the first data channel and the second data channel are downlink data channels, and the data carried in the first data channel and the second data channel are the same.

It should be understood that, for a specific process of determining that the data carried in the first data channel and the second data channel are the same, reference may be made to the relevant description in Embodiment 1.

In this case, the terminal device may perform combined demodulation on the first data channel and the second data channel, so as to increase the probability of successful demodulation, thereby improving transmission performance.

Further, when reporting feedback information, the terminal device may only report one piece of feedback information, for example, ACK or NACK, for the first data channel and the second data channel, thereby reducing feedback overhead. In an implementation manner, the terminal device may transmit the feedback information according to the control information in the most recently received DCI among the first DCI and the second DCI.

Specifically, if the terminal device correctly detects at least one of the first data channel and the second data channel, the terminal device may report an ACK, or if the terminal device does not correctly detect the first data channel channel and any data channel in the second data channel, the terminal device may report a NACK.

Case 2: Both the first data channel and the second data channel are downlink data channels, and the data carried in the first data channel and the second data channel are different.

In this case, the terminal device may separately demodulate the first data channel and the second data channel, and further report the ACK/NACK corresponding to each data channel respectively.

Case 3: Both the first data channel and the second data channel are uplink data channels, and the data carried in the first data channel and the second data channel are the same.

It should be understood that, for a specific process of determining that the data carried in the first data channel and the second data channel are the same, reference may be made to the relevant description in Embodiment 1.

In this case, the terminal device may generate the same data and transmit them through the first data channel and the second data channel respectively.

At this time, when generating the data in the second data channel, the terminal device may obtain the data in the second data channel according to the data in the first data channel.

In an implementation manner, the terminal device may use different antenna panels to transmit the first data channel and the second data channel, which helps ensure reliability of data transmission, thereby improving data transmission performance.

Situation 4: Both the first data channel and the second data channel are uplink data channels, and the data carried in the first data channel and the second data channel are different.

In this case, the terminal device may generate different data and transmit them through the first data channel and the second data channel respectively.

At this time, when generating data in the second data channel, the terminal device may generate new data.

In an implementation manner, the terminal device may use different or the same antenna panels to transmit the first data channel and the second data channel.

It should be understood that, in addition to the above four situations, one of the first data channel and the second data channel may also be an uplink data channel, and the other may be a downlink data channel. In this case, the terminal device only needs to The data carried in the first data channel and the second data channel can be processed separately, which will not be repeated here.

In this embodiment of the application, if the data carried by the first data channel and the second data channel are the same, the terminal device uses different configurations, for example, modulation and coding scheme (Modulation and Coding Scheme, MCS), physical layer resource configuration and at least one of the beams, to send or receive the first data channel and the second data channel, so that the reliability of data transmission can be improved.

It should be understood that the physical layer resource configuration here may refer to time domain resource configuration or frequency domain resource configuration. For example, the time-domain resource configuration may be a resource mapping type, and the frequency-domain resource configuration may be a physical resource block (Physical Resource Block, PRB) occupied by a data channel.

Therefore, according to the data transmission method of the embodiment of the present application, the terminal device can determine whether the data channels scheduled by the multiple DCIs carry the same data according to the transmission resources of the multiple DCIs, so that the terminal device can carry the same data. In some cases, the same data is combined, such as combined demodulation or combined feedback, so as to improve data transmission performance.

The method embodiment of the present application is described in detail above in conjunction with FIG. 2. The device embodiment of the present application is described below in conjunction with FIGS. 3 to 5. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to Method Example.

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 3 , the terminal device 300 includes:

A communication module 310, configured to detect first downlink control information DCI and second DCI, wherein the first DCI is used to schedule a first data channel, and the second DCI is used to schedule a second data channel;

A determination module 320, configured to determine the relationship between the first data channel and the second data channel according to the transmission resources of the first DCI and the second DCI;

The communication module 310 is further configured to: send or receive the first data channel and/or the second data channel according to the relationship between the first data channel and the second data channel.

In some embodiments, the HARQ process indication information included in the first DCI and the second DCI indicates the same HARQ process.

In some embodiments, the first DCI and the second DCI are two adjacent DCIs that schedule data channels in the HARQ process.

In some embodiments, the data channels scheduled by the first DCI and the second DCI both carry new data transmissions.

In some embodiments, the determining module 320 is also used for at least one of the following:

According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located A search space, determining whether the data carried in the first data channel and the second data channel are the same;

determining whether the spatial transmission filters used by the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI;

According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located A search space for determining whether the ACK/NACK feedback information of the first data channel and the second data channel are reported together;

Determine whether the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information according to the time interval between the first DCI and the second DCI.

In some embodiments, the determining module 320 is specifically configured to:

If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is less than or equal to a first threshold, determine that the data carried in the first data channel and the second data channel are the same; and / or

If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is greater than a first threshold, determining that the data carried in the first data channel and the second data channel are different; and/ or,

If the time interval between the terminal device detecting the first DCI and the second DCI is greater than the first threshold, determine the first data channel and the second DCI according to the new data indication NDI in the second DCI Whether the data carried in the second data channel is the same.

In some embodiments, the first threshold is a time interval between the terminal device detecting the first DCI and transmitting the ACK/NACK feedback information of the first data channel.

In some embodiments, the determination module 320 is also used for:

If the terminal device detects the first DCI and detects the second DCI in the same time slot or symbol, determine that the data carried in the first data channel and the second data channel are the same; and/or

If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine that the data carried in the first data channel and the second data channel are different; and/or,

If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine the first data channel and the second data channel according to the NDI in the second DCI Whether the data carried in is the same.

In some embodiments, the time interval is in units of slots or symbols.

In some embodiments, the determining module 320 is specifically configured to:

If the CORESET or search space where the first DCI and the second DCI are located are different, determine that the data carried in the first data channel and the second data channel are the same; and/or

If the CORESET or search space where the first DCI and the second DCI are located are the same, determine that the data carried in the first data channel and the second data channel are different; and/or

If the CORESET or search space where the first DCI and the second DCI are located are the same, according to the NDI in the second DCI, determine whether the data carried in the first data channel and the second data channel are the same .

In some embodiments, the communication module 320 is specifically used for:

If the data carried by the first data channel and the second data channel are the same, the terminal device uses at least one of different modulation and coding schemes MCS, physical layer resource configuration, spatial domain transmission filters and beams, sending or receiving the first data channel and the second data channel.

In some embodiments, the terminal device 300 further includes:

A processing module, configured to: if both the first data channel and the second data channel are downlink data channels, and the data carried in the first data channel and the second data channel are the same, the terminal device Demodulation processing is performed after the first data channel and the second data channel are combined.

In some embodiments, if the data channels scheduled by the first DCI and the second DCI are both downlink data channels, the determining module 320 is further configured to:

According to the relationship between the data carried in the first data channel and the second data channel, the feedback information reported to the first data channel and the second data channel is determined.

In some embodiments, the determining module 320 is specifically configured to:

If the data carried in the first data channel and the second data channel are the same, determine to report ACK/NACK feedback information to the first data channel and the second data channel; and/or

If the data carried by the first data channel and the second data channel are different, determine to report corresponding ACK/NACK feedback information to the first data channel and the second data channel respectively.

In some embodiments, the determination module 320 is also used for:

If the ACK/NACK feedback information of the first data channel and the second data channel are reported together, report the ACK/NACK of the first data channel and the second data channel through the same physical uplink control channel PUCCH resource feedback; and/or

If the ACK/NACK feedback information of the first data channel and the second data channel are not reported together, report the ACK/NACK feedback information of the first data channel and the second data channel through different PUCCH resources.

In some embodiments, the determination module 320 is also used for:

If the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information, determine an ACK/NACK according to the detection results of the first data channel and the second data channel feedback; and/or

If the first data channel and the second data channel do not report ACK/NACK through the same ACK/NACK feedback information, according to the detection results of the first data channel and the second data channel, report independent ACK/NACK feedback information.

In some embodiments, the communication module 310 is also used for:

If both the first data channel and the second data channel are uplink data channels, and the data carried in the first data channel and the second data channel are the same, the terminal device sends The first data channel and the second data channel.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 300 are for realizing the method shown in FIG. 2 For the sake of brevity, the corresponding process of the terminal device in 200 will not be repeated here.

Therefore, according to the embodiment of the present application, the terminal device can determine whether the data channels scheduled by the multiple DCIs carry the same data according to the transmission resources of the multiple DCIs, so that the terminal device can determine whether the same data is carried in the data channel of the multiple DCIs. Combined data, such as combined demodulation or combined feedback, can improve data transmission performance.

FIG. 4 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 4 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

In an implementation manner, as shown in FIG. 4 , the communication device 600 may further include a memory 620 . Wherein, the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.

Wherein, the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .

In one implementation, as shown in FIG. 4, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive information or data from other devices.

Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

In one implementation, the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , for the sake of brevity, it is not repeated here.

FIG. 5 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 5 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

In an implementation manner, as shown in FIG. 5 , the chip 700 may further include a memory 720 . Wherein, the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.

Wherein, the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .

In an implementation manner, the chip 700 may further include an input interface 730 . Wherein, the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.

In an implementation manner, the chip 700 may further include an output interface 740 . Wherein, the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

In one implementation, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiment of the present application, for the sake of brevity , which will not be repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable Logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) And direct memory bus random access memory (DirectRambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

In an implementation manner In an implementation manner, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute each method in the embodiment of the present application to be implemented by the network device For the sake of brevity, the corresponding process will not be repeated here.

In an implementation manner, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device For the sake of brevity, the corresponding process will not be repeated here.

The embodiment of the present application also provides a computer program product, including computer program instructions.

In an implementation manner, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, I won't repeat them here.

In one implementation, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the functions implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application. For the sake of brevity, the corresponding process is not repeated here.

The embodiment of the present application also provides a computer program.

In one implementation, the computer program can be applied to the network device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application , for the sake of brevity, it is not repeated here.

In one implementation, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes the various methods in the embodiment of the present application by the mobile terminal/terminal device. For the sake of brevity, the corresponding process implemented by the terminal device will not be repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (37)

1. A method for transmitting data, comprising: The terminal device detects the first downlink control information DCI and the second DCI, wherein the first DCI is used to schedule the first data channel, and the second DCI is used to schedule the second data channel; determining, by the terminal device, a relationship between the first data channel and the second data channel according to transmission resources of the first DCI and the second DCI; The terminal device sends or receives the first data channel and/or the second data channel according to the relationship between the first data channel and the second data channel; Wherein, the terminal device determines the relationship between the first data channel and the second data channel according to the transmission resources of the first DCI and the second DCI, including at least one of the following: determining whether the data carried in the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI; Determine whether the data carried by the first data channel and the second data channel are the same according to the control resource set CORESET or the search space where the first DCI and the second DCI are located. 2. The method according to claim 1, wherein the HARQ process indication information included in the first DCI and the second DCI indicates the same HARQ process. 3. The method according to claim 2, wherein the first DCI and the second DCI are two adjacent DCIs for scheduling data channels in the HARQ process. 4. The method according to any one of claims 1 to 3, wherein the data channels scheduled by the first DCI and the second DCI both carry new data transmission. 5. The method according to any one of claims 1 to 3, wherein the terminal device determines the first data channel and the second DCI according to transmission resources of the first DCI and the second DCI. The relationship between two data channels also includes at least one of the following: determining whether the spatial transmission filters used by the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI; According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located A search space for determining whether the ACK/NACK feedback information of the first data channel and the second data channel are reported together; Determine whether the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information according to the time interval between the first DCI and the second DCI. 6. The method according to claim 1, wherein, according to the time interval between the first DCI and the second DCI, determining Whether the data carried are the same, including: If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is less than or equal to a first threshold, determine that the data carried in the first data channel and the second data channel are the same; or, If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is greater than a first threshold, determine that the data carried in the first data channel and the second data channel are different; or, If the time interval between the terminal device detecting the first DCI and the second DCI is greater than the first threshold, determine the first data channel and the second DCI according to the new data indication NDI in the second DCI Whether the data carried in the second data channel is the same. 7. The method according to claim 6, wherein the first threshold is the time interval between the terminal device detecting the first DCI and transmitting the ACK/NACK feedback information of the first data channel . 8. The method according to claim 1, wherein, according to the time interval between the first DCI and the second DCI, determining Whether the data carried are the same, including: If the terminal device detects the first DCI and detects the second DCI in the same time slot or symbol, determine that the data carried in the first data channel and the second data channel are the same; or If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine that the data carried in the first data channel and the second data channel are different; or, If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine the first data channel and the second data channel according to the NDI in the second DCI Whether the data carried in is the same. 9. The method according to claim 5, wherein the time interval is in units of time slots or symbols. 10. The method according to claim 5, wherein the first data channel and the second DCI are determined according to the control resource set CORESET or the search space where the first DCI and the second DCI are located. Whether the data carried in the two data channels are the same, including: If the CORESET or search space where the first DCI and the second DCI are located are different, determine that the data carried in the first data channel and the second data channel are the same; or If the CORESET or search space where the first DCI and the second DCI are located are the same, determine that the data carried in the first data channel and the second data channel are different; or If the CORESET or search space where the first DCI and the second DCI are located are the same, according to the NDI in the second DCI, determine whether the data carried in the first data channel and the second data channel are the same . 11. The method according to any one of claims 1 to 3, wherein the terminal device sends or receives the first data according to the relationship between the first data channel and the second data channel channel and/or the second data channel, including: if the data carried in the first data channel and the second data channel are the same, the terminal device configures physical layer resources through different modulation and coding schemes MCS, At least one of a spatial domain transmission filter and a beam to transmit or receive the first data channel and the second data channel. 12. The method according to any one of claims 1 to 3, wherein the terminal device sends or receives the first data according to the relationship between the first data channel and the second data channel channel and/or the second data channel, including: if both the first data channel and the second data channel are downlink data channels, and the data carried in the first data channel and the second data channel The data are the same, and the terminal device performs demodulation processing after combining the first data channel and the second data channel. 13. The method according to any one of claims 1 to 3, wherein if both the first data channel and the second data channel are downlink data channels, the method further comprises: The terminal device determines feedback information reported on the first data channel and the second data channel according to the relationship between the data carried by the first data channel and the second data channel. 14. The method according to claim 13, wherein the terminal device determines the relationship between the first data channel and the second data channel according to the relationship between the data carried in the first data channel and the second data channel. The feedback information reported by the second data channel includes: If the data carried by the first data channel and the second data channel are the same, determine to report ACK/NACK feedback information to the first data channel and the second data channel; or If the data carried by the first data channel and the second data channel are different, determine to report corresponding ACK/NACK feedback information to the first data channel and the second data channel respectively. 15. The method according to claim 13, wherein the terminal device determines the relationship between the first data channel and the second data channel according to the relationship between the data carried in the first data channel and the second data channel. The feedback information reported by the second data channel includes: If the ACK/NACK feedback information of the first data channel and the second data channel are reported together, report the ACK/NACK of the first data channel and the second data channel through the same physical uplink control channel PUCCH resource Feedback; or If the ACK/NACK feedback information of the first data channel and the second data channel are not reported together, report the ACK/NACK feedback information of the first data channel and the second data channel through different PUCCH resources. 16. The method according to claim 13, wherein the terminal device determines the relationship between the first data channel and the second data channel according to the relationship between the data carried in the first data channel and the second data channel. The feedback information reported by the second data channel includes: If the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information, determine an ACK/NACK according to the detection results of the first data channel and the second data channel Feedback; or If the first data channel and the second data channel do not report ACK/NACK through the same ACK/NACK feedback information, according to the detection results of the first data channel and the second data channel, report independent ACK/NACK feedback information. 17. The method according to any one of claims 1 to 3, wherein the terminal device sends or receives the first data according to the relationship between the first data channel and the second data channel channel and/or said second data channel, comprising: If both the first data channel and the second data channel are uplink data channels, and the data carried in the first data channel and the second data channel are the same, the terminal device sends The first data channel and the second data channel. 18. A terminal device, characterized in that it comprises: A communication module, configured to detect first downlink control information DCI and second DCI, wherein the first DCI is used to schedule a first data channel, and the second DCI is used to schedule a second data channel; A determining module, configured to determine the relationship between the first data channel and the second data channel according to the transmission resources of the first DCI and the second DCI; The communication module is further configured to: send or receive the first data channel and/or the second data channel according to the relationship between the first data channel and the second data channel; Wherein, the determining module is also used for at least one of the following: determining whether the data carried in the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI; Determine whether the data carried by the first data channel and the second data channel are the same according to the control resource set CORESET or the search space where the first DCI and the second DCI are located. 19. The terminal device according to claim 18, wherein the HARQ process indication information included in the first DCI and the second DCI indicates the same HARQ process. 20. The terminal device according to claim 19, wherein the first DCI and the second DCI are two adjacent DCIs for scheduling data channels in the HARQ process. 21. The terminal device according to any one of claims 18 to 20, wherein the data channels scheduled by the first DCI and the second DCI both carry new data transmission. 22. The terminal device according to any one of claims 18 to 20, wherein the determination module is also used for at least one of the following: determining whether the spatial transmission filters used by the first data channel and the second data channel are the same according to the time interval between the first DCI and the second DCI; According to the time interval between the first DCI and the second DCI, or the control resource set CORESET where the first DCI and the second DCI are located, or where the first DCI and the second DCI are located A search space for determining whether the ACK/NACK feedback information of the first data channel and the second data channel are reported together; Determine whether the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information according to the time interval between the first DCI and the second DCI. 23. The terminal device according to claim 22, wherein the determining module is specifically configured to: If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is less than or equal to a first threshold, determine that the data carried in the first data channel and the second data channel are the same; or If the time interval between detecting the first DCI and detecting the second DCI by the terminal device is greater than a first threshold, determine that the data carried in the first data channel and the second data channel are different; or, If the time interval between the terminal device detecting the first DCI and the second DCI is greater than the first threshold, determine the first data channel and the second DCI according to the new data indication NDI in the second DCI Whether the data carried in the second data channel is the same. 24. The terminal device according to claim 23, wherein the first threshold is the time between the terminal device detecting the first DCI and transmitting the ACK/NACK feedback information of the first data channel interval. 25. The terminal device according to claim 22, wherein the determining module is further configured to: If the terminal device detects the first DCI and detects the second DCI in the same time slot or symbol, determine that the data carried in the first data channel and the second data channel are the same; or If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine that the data carried in the first data channel and the second data channel are different; or, If the terminal device detects the first DCI and detects the second DCI in different time slots or symbols, determine the first data channel and the second data channel according to the NDI in the second DCI Whether the data carried in is the same. 26. The terminal device according to claim 22, wherein the time interval is in units of time slots or symbols. 27. The terminal device according to claim 22, wherein the determining module is specifically used for: If the CORESET or search space where the first DCI and the second DCI are located are different, determine that the data carried in the first data channel and the second data channel are the same; or If the CORESET or search space where the first DCI and the second DCI are located are the same, determine that the data carried in the first data channel and the second data channel are different; or If the CORESET or search space where the first DCI and the second DCI are located are the same, according to the NDI in the second DCI, determine whether the data carried in the first data channel and the second data channel are the same . 28. The terminal device according to any one of claims 18 to 20, wherein the communication module is specifically used for: If the data carried by the first data channel and the second data channel are the same, the terminal device uses at least one of different modulation and coding schemes MCS, physical layer resource configuration, spatial domain transmission filters and beams, sending or receiving the first data channel and the second data channel. 29. The terminal device according to any one of claims 18 to 20, wherein the terminal device further comprises: A processing module, configured to: if both the first data channel and the second data channel are downlink data channels, and the data carried in the first data channel and the second data channel are the same, the terminal device Demodulation processing is performed after the first data channel and the second data channel are combined. 30. The terminal device according to any one of claims 18 to 20, wherein if the data channels scheduled by the first DCI and the second DCI are both downlink data channels, the determining module further Used for: According to the relationship between the data carried in the first data channel and the second data channel, the feedback information reported to the first data channel and the second data channel is determined. 31. The terminal device according to claim 30, wherein the determining module is specifically configured to: If the data carried by the first data channel and the second data channel are the same, determine to report ACK/NACK feedback information to the first data channel and the second data channel; or If the data carried by the first data channel and the second data channel are different, determine to report corresponding ACK/NACK feedback information to the first data channel and the second data channel respectively. 32. The terminal device according to claim 30, wherein the determination module is further used for: If the ACK/NACK feedback information of the first data channel and the second data channel are reported together, report the ACK/NACK of the first data channel and the second data channel through the same physical uplink control channel PUCCH resource Feedback; or If the ACK/NACK feedback information of the first data channel and the second data channel are not reported together, report the ACK/NACK feedback information of the first data channel and the second data channel through different PUCCH resources. 33. The terminal device according to claim 30, wherein the determining module is further used for: If the first data channel and the second data channel report ACK/NACK through the same ACK/NACK feedback information, determine an ACK/NACK according to the detection results of the first data channel and the second data channel Feedback; or If the first data channel and the second data channel do not report ACK/NACK through the same ACK/NACK feedback information, according to the detection results of the first data channel and the second data channel, report independent ACK/NACK feedback information. 34. The terminal device according to any one of claims 18 to 20, wherein the communication module is further used for: If both the first data channel and the second data channel are uplink data channels, and the data carried in the first data channel and the second data channel are the same, the terminal device sends The first data channel and the second data channel. 35. A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the computer program according to claims 1 to 17 any one of the methods described. 36. A chip, characterized by comprising: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 17. 37. A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 17.

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