WO2023115583A1

WO2023115583A1 - Communication method, terminal device, and network device

Info

Publication number: WO2023115583A1
Application number: PCT/CN2021/141382
Authority: WO
Inventors: 梁彬; 林亚男; 徐婧; 张轶
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-06-29

Abstract

The present application relates to the field of communications, and relates to a communication method, a terminal device, and a network device. The specific implementation mode is that: a terminal device receives first downlink control information, the first downlink control information being used for determining data transmissions corresponding to at least two carriers. According to the present application, data transmissions of two or more carriers can be scheduled by using a piece of downlink control information.

Description

Communication method, terminal device and network device

technical field

The present application relates to the communication field, and more specifically, to a communication method, a terminal device and a network device.

Background technique

In the 5G new air interface (NR, new radio) system, the network configures different downlink control information (DCI, Downlink Control Information) formats for the terminal to adapt to different scenarios and scheduling requirements of network configuration. During network configuration, in order to make better use of limited spectrum resources, different data transmissions can share spectrum resources, so it is necessary to schedule data transmissions corresponding to two or more carriers. How to realize more data transmission scheduling on limited resources has become a technical problem to be solved.

Contents of the invention

Embodiments of the present application provide a communication method, a terminal device, and a network device, which can implement data transmission scheduling of two or more carriers using one downlink control information.

An embodiment of the present application provides a communication method, including:

The terminal device receives first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

The network device sends first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

An embodiment of the present application provides a device for determining control information, including:

The first receiving unit is configured for the terminal device to receive first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

An embodiment of the present application provides a control information indication device, including:

The first sending unit is configured for the network device to send first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

An embodiment of the present application provides a terminal device, including 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, so that the terminal device executes the above-mentioned first communication method.

An embodiment of the present application provides a network device, including 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, so that the network device executes the above-mentioned second communication method.

An embodiment of the present application provides a chip configured to implement the above-mentioned first communication method.

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 above-mentioned second communication method.

An embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program, and when the computer program is executed by a device, the device executes the above-mentioned first communication method.

An embodiment of the present application provides a computer-readable storage medium, which is used to store a computer program, and when the computer program is run by a device, the device executes the above-mentioned second communication method.

An embodiment of the present application provides a computer program product, including computer program instructions, where the computer program instructions cause a computer to execute the above-mentioned first communication method.

An embodiment of the present application provides a computer program product, including computer program instructions, where the computer program instructions cause a computer to execute the above-mentioned second communication method.

An embodiment of the present application provides a computer program, which, when running on a computer, causes the computer to execute the above-mentioned first communication method.

An embodiment of the present application provides a computer program, which, when running on a computer, causes the computer to execute the above-mentioned second communication method.

In this embodiment of the present application, the terminal device receives the first downlink control information used to determine the data transmission corresponding to at least two carriers, so as to realize the use of one downlink control information to schedule data transmission of two or more carriers, so that it can Implement more data transmission scheduling on resources.

Description of drawings

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

Fig. 2 is a schematic flowchart of a communication method 200 according to an embodiment of the present application.

Fig. 3 is an implementation flowchart of Example 1 of the present application.

Fig. 4 is an implementation flow chart of Example 2 of the present application.

Fig. 5 is an implementation flow chart of Example 3 of the present application.

Fig. 6 is an implementation flowchart of Example 4 of the present application.

Fig. 7 is a schematic flowchart of a communication method 700 according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present application

FIG. 10 is a schematic structural diagram of a terminal device according to another embodiment of the present application.

FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 12 is a schematic structural diagram of a network device according to another embodiment of the present application.

Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.

FIG. 14 is a schematic structural diagram of a chip according to an embodiment of the present application.

Fig. 15 is a schematic block diagram of a communication system according to 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.

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, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application may also be applied to these communication systems.

In a possible implementation manner, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent ( Standalone, SA) network deployment scene.

In a possible implementation, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to Licensed spectrum, where the licensed spectrum can also be considered as non-shared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in the WLAN, 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) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In the embodiment of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).

In this embodiment of the application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.

As an example but not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In the embodiment of the present application, the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network The network equipment (gNB) in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.

As an example but not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network equipment may be a satellite or a balloon station. For example, the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc. Optionally, the network device may also be a base station installed on land, water, and other locations.

In this embodiment of the present application, the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

FIG. 1 exemplarily shows a communication system 100 . The communication system includes a network device 110 and two terminal devices 120 . In a possible implementation manner, the communication system 100 may include multiple network devices 110, and each network device 110 may include other numbers of terminal devices 120 within the coverage area, which is not limited in this embodiment of the present application.

In a possible implementation manner, the communication system 100 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF), etc. The embodiment of the application does not limit this.

Wherein, the network equipment may further include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with access network devices. The access network device may be a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA- Evolved base station (evolutional node B, abbreviated as eNB or e-NodeB) macro base station, micro base station (also called "small base station"), pico base station, access point (access point, AP), Transmission point (transmission point, TP) or new generation base station (new generation Node B, gNodeB), etc.

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 shown in Figure 1 as an example, the communication equipment may include network equipment and terminal equipment with communication functions. It may include other devices in the communication system, 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.

It should be understood that the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the related technologies of the embodiments of the present application are described below. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and all of them belong to the embodiments of the present application. protected range.

Fig. 2 is a schematic flowchart of a communication method 200 according to an embodiment of the present application. The method can optionally be applied to the system shown in Fig. 1, but is not limited thereto. The method includes at least some of the following.

S210: The terminal device receives first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

In this embodiment of the present application, the first downlink control information is used to determine data transmission corresponding to at least two carriers, and one downlink control information is used to schedule two or more data transmissions. Therefore, the method proposed in this embodiment can save channel resources. Realize more data transmission scheduling on limited resources.

The foregoing first downlink control channel may also be referred to as the first DCI.

In a possible implementation manner, the foregoing first downlink control channel is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission. At least two data transmissions corresponding to at least two carriers may be divided into two data transmission groups, such as a first data transmission group and a second data transmission group, and the first data transmission group and the second data transmission group may respectively include at least A data transfer.

In a possible implementation manner, the first downlink control channel includes a first information indication field and a second information indication field;

Among the at least two data transmissions corresponding to the at least two carriers, some of the data transmissions belong to the first data transmission group, and the other part of the data transmissions belong to the second data transmission group;

In an embodiment of the present application, among the at least two data corresponding to the at least two carriers, the first data belongs to a first data transmission group, and the second data belongs to a second data transmission group. Or at least one of the first data in the at least two data belongs to the first data transmission group, at least one of the second data belongs to the second data transmission group, and the other data except the first data and the second data belong to different data transmission groups Do limited.

The first information indication field may carry transmission configuration information of data transmission in the first data transmission group;

The second information indication field may carry transmission configuration information of data transmission in the second data transmission group.

The above data transmission may be uplink data transmission or downlink data transmission.

The foregoing transmission configuration may also be referred to as transmission information, transmission-related information, transmission-related configuration, and the like. In a possible implementation manner, the transmission configuration of the above data transmission includes: frequency domain resources for data transmission, time domain resources, new data indication, redundancy version, modulation and decoding scheme, hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat reQuest) process number, power control parameters, physical uplink control channel (PUCCH, Physical Uplink Control Channel) resources, and at least one of feedback timing or other related configurations.

In a possible implementation manner, the transmission configuration information carried in the first information indication field and the second information indication field are of the same type.

For example, the type of the transmission configuration information carried in the first information indication field is frequency domain resource information, which is used to indicate the frequency domain resources of the data transmission in the first data transmission group; the type of the transmission configuration information carried in the second information indication field is also is frequency domain resource information, and is used to indicate frequency domain resources for data transmission in the second data transmission group.

For another example, the type of the transmission configuration information carried in the first information indication field is time domain resource information, which is used to indicate the time domain resources for data transmission in the first data transmission group; the second information indicates the type of transmission configuration information carried in the field It is also time-domain resource information, which is used to indicate the time-domain resources of the data transmission in the second data transmission group.

The following will no longer exhaustively enumerate various situations.

The content of the transmission configuration information of the data transmission indicated by the first indication information and the second indication information may be the same or different. For example, the first information indicates that the type of transmission configuration information carried in the field is redundancy version information, and the redundancy version is the first redundancy version; the second information indicates that the type of transmission configuration information carried in the field is redundancy version information, and the redundancy version is the first redundancy version. The redundancy version is the second redundancy version; the first redundancy version and the second redundancy version may be the same or different.

In a possible implementation manner, the first data transmission group corresponds to the first carrier group, and the data transmission in the first data transmission group corresponds to the carriers in the first carrier group one by one;

The second data transmission group corresponds to a second carrier group, and data transmission in the second data transmission group corresponds to carriers in the second carrier group one by one.

The carriers in the first carrier group and the carriers in the second carrier group do not overlap. For example, each carrier in the first carrier group does not overlap, and each carrier in the first carrier group does not overlap with each carrier in the second carrier group; and each carrier in the second carrier group does not overlap .

At least one data transmission may be included in the first data transmission group, and at least one data transmission may be included in the second data transmission group. Correspondingly, the first carrier group may include at least one carrier, and the second carrier group may include at least one carrier.

In a possible implementation manner, each data transmission in each data transmission group has the same direction. For example:

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.

In a possible implementation, when both the first data transmission group and the second data transmission group include downlink data transmission, the carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier , the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier is the same as or different from the second PUCCH carrier.

Obviously, if the first PUCCH carrier is different from the second PUCCH carrier, the terminal device can distinguish the first data transmission group from the second data transmission group according to the PUCCH carrier corresponding to the data transmission (downlink data transmission). For example, the data transmission group formed by data transmissions corresponding to all carriers corresponding to the first PUCCH carrier is determined as the first data transmission group, and the data transmission group formed by data transmissions corresponding to all carriers corresponding to the second PUCCH carrier is determined as Second data transmission group.

In a possible implementation manner, the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers in the second carrier group corresponding to the second data transmission group are in different bandwidths from the scheduled carrier. Within the bandwidth; wherein, the scheduled carrier is a carrier that bears the first downlink control information.

The above-mentioned bandwidth can also be band; the carriers in the first carrier group and the scheduled carrier are in the same bandwidth, that is, the carriers in the first carrier group and the scheduled carrier are intra-band, and the carriers in the second carrier group and the scheduled carrier are in different Within the bandwidth, that is, the carrier in the second carrier group and the scheduled carrier are inter-band.

The above division method of the first data transmission group and the second data transmission group is only an example, and the embodiment of the present application can also use other methods for division; for example, the carrier and the scheduling carrier in the first carrier group corresponding to the first data transmission group Within different bandwidths, the carriers in the second carrier group corresponding to the second data transmission group are within the same bandwidth as the scheduled carrier.

Apparently, according to whether the corresponding carrier is within the same bandwidth (eg, band) as the scheduled carrier, the terminal device can distinguish the first data transmission group from the second data transmission group. For example, the data transmission group formed by data transmission corresponding to all carriers within the same bandwidth (such as band) with the scheduled carrier is determined as the first data transmission group, and all carriers not within the same bandwidth (such as band) with the scheduled carrier are determined as the first data transmission group. The data transmission group formed by the corresponding data transmission is determined as the second data transmission group.

In a possible implementation manner, the terminal device in the embodiment of the present application receives radio resource control (Radio Resource Control, RRC) signaling before receiving the first downlink control information, and the RRC signaling may indicate multiple carriers, where including at least two carriers that can be scheduled by the first downlink control information; and/or,

The RRC signaling indicates multiple carrier groups, including at least one of the first carrier group and the second carrier group that can be scheduled by the first downlink control information.

For example, multiple carrier groups are indicated in the RRC signaling, including carrier group 1, carrier group 2, ... carrier group n (n is a positive integer); these carrier groups include two carriers that can be scheduled by the first downlink control information groups, that is, the first carrier group and the second carrier group. The first downlink control information may indicate the identification information of the first carrier group and the second carrier group, so that the UE can determine the carrier group scheduled by the first downlink control information.

If RRC signaling indicates multiple carriers scheduled by the first downlink control information without distinguishing between the first carrier group and the second carrier group; in this case, the terminal device may determine the first carrier according to the PUCCH carrier corresponding to each carrier The first carrier group and the second carrier group, or the first carrier group and the second carrier group are determined according to whether each carrier and the scheduled carrier are within the same bandwidth (eg, band).

In a possible implementation manner, the RRC signaling received by the terminal device may also indicate whether the data transmission in the data transmission group corresponding to the first carrier group and the second carrier group is uplink transmission or downlink transmission. For example, the RRC signaling received by the terminal device includes indication information, the indication information may be an enumeration type, and each value of the indication information indicates the following four situations:

(1) The data transmission corresponding to the first carrier group is uplink data transmission, and the data transmission corresponding to the second carrier group is uplink data transmission;

(2) The data transmission corresponding to the first carrier group is uplink data transmission, and the data transmission corresponding to the second carrier group is downlink data transmission;

(3) The data transmission corresponding to the first carrier group is downlink data transmission, and the data transmission corresponding to the second carrier group is uplink data transmission;

(4) The data transmission corresponding to the first carrier group is downlink data transmission, and the data transmission corresponding to the second carrier group is downlink data transmission.

Taking the first carrier group corresponding to the first data transmission group and the second carrier group corresponding to the second data transmission group as an example, the above four situations can also be referred to as:

(1) The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission;

(2) The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission;

(3) The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission;

(4) The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.

The aforementioned multiple carriers scheduled by the first downlink control information, the first carrier group and/or the second carrier group may also be indicated by the first downlink control information. For example:

The first downlink control information indicates multiple carriers to be scheduled; and/or,

The first downlink control information indicates at least one of the scheduled first carrier group and the second carrier group.

In the case where the first downlink control information only indicates the scheduled multiple carriers without distinguishing between the first carrier group and the second carrier group, the terminal device can also determine the first carrier group according to the PUCCH carriers corresponding to each carrier and the second carrier group, or determine the first carrier group and the second carrier group according to whether each carrier and the scheduled carrier are within the same bandwidth (eg, band).

In a possible implementation manner, the information about whether the data transmission in the data transmission group corresponding to the first carrier group and/or the second carrier group is uplink transmission or downlink transmission may also be indicated by the first downlink control information, For example, the first downlink control information includes a first indication field and a second indication field;

The first indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

The second indication field is used to indicate that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.

The lengths of the first indication field and the second indication field may be 1 bit respectively, and may indicate the above four situations.

Or, in other possible implementation manners, the first downlink control information may include a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.

The length of the above-mentioned third indication field may be 2 bits, and may indicate the above-mentioned four situations.

An example in which the terminal device determines the data transmission corresponding to the carrier scheduled by the first downlink control information according to the above several indication manners will be described in detail below with reference to the accompanying drawings.

Example one:

Fig. 3 is the implementation flow chart of Example 1 of the present application, including:

The terminal device receives RRC signaling, the RRC signaling indicates multiple carriers, including at least two carriers that can be scheduled by the first downlink control information, and indicates that the first data transmission group corresponding to the first carrier group includes The uplink data transmission or downlink data transmission, and the second data transmission group corresponding to the second carrier group include uplink data transmission or downlink data transmission.

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The above transmission configuration can be at least one of frequency domain resources, time domain resources, new data indication, redundancy version, modulation and decoding scheme, HARQ process number, power control parameters, PUCCH resources, feedback timing, and other configuration information , the embodiments of the present application are not exhaustive here. The first indication information and the second indication information indicate the same type of transmission configuration.

The terminal device determines the first carrier group and the second carrier group according to the PUCCH carrier corresponding to each carrier; or, determines the first carrier group and the second carrier group according to whether each carrier is within the same bandwidth (such as a band) with the scheduled carrier; And, the terminal device determines the transmission configuration of the data transmission in the first carrier group and the second carrier group according to the first DCI.

Example two:

Fig. 4 is the implementation flowchart of example 2 of the present application, including:

The terminal device receives RRC signaling, which indicates multiple carrier groups, including the first carrier group and the second carrier group scheduled by the first downlink control information, and indicates the first data corresponding to the first carrier group The transmission group includes uplink data transmission or downlink data transmission, and the second data transmission group corresponding to the second carrier group includes uplink data transmission or downlink data transmission.

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The above transmission configuration can be at least one of frequency domain resources, time domain resources, new data indication, redundancy version, modulation and decoding scheme, HARQ process number, power control parameters, PUCCH resources, feedback timing, and other configuration information , the embodiments of the present application are not exhaustive here. The first indication information and the second indication information indicate the same type of transmission configuration. The first downlink control information also carries identification information of the first carrier group and identification information of the second carrier group, for the terminal device to determine which two carrier groups are scheduled by the first downlink control information.

The terminal device determines transmission configurations for data transmission in the first carrier group and the second carrier group according to the first DCI.

Example three:

Fig. 5 is the implementation flow chart of Example 3 of the present application, including:

The terminal device receives RRC signaling, where the RRC signaling indicates multiple carriers scheduled by the first downlink control information.

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The above transmission configuration can be at least one of frequency domain resources, time domain resources, new data indication, redundancy version, modulation and decoding scheme, HARQ process number, power control parameters, PUCCH resources, feedback timing, and other configuration information , the embodiments of the present application are not exhaustive here. The first indication information and the second indication information indicate the same type of transmission configuration. The first downlink control information also indicates that the first data transmission group corresponding to the first carrier group includes uplink data transmission or downlink data transmission, and the second data transmission group corresponding to the second carrier group includes uplink data transmission or downlink data transmission.

Example four:

Fig. 6 is the implementation flowchart of example 4 of the present application, including:

The terminal device receives the RRC signaling, where the RRC signaling indicates multiple carrier groups, including the first carrier group and the second carrier group scheduled by the first downlink control information.

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The above transmission configuration can be at least one of frequency domain resources, time domain resources, new data indication, redundancy version, modulation and decoding scheme, HARQ process number, power control parameters, PUCCH resources, feedback timing, and other configuration information , the embodiments of the present application are not exhaustive here. The first indication information and the second indication information indicate the same type of transmission configuration. The first downlink control information also carries identification information of the first carrier group and identification information of the second carrier group, for the terminal device to determine which two carrier groups are scheduled by the first downlink control information. The first downlink control information also indicates that the first data transmission group corresponding to the first carrier group includes uplink data transmission or downlink data transmission, and the second data transmission group corresponding to the second carrier group includes uplink data transmission or downlink data transmission

In the first example to the fourth example above, RRC signaling or first downlink control information is used to configure the first data transmission group and/or the second data transmission group to include uplink data transmission or downlink data transmission. In other examples of the present invention, the direction of data transmission in the first data transmission group and the second data transmission group may not be separately configured. For example, if the first downlink control information is uplink scheduling DCI, both the first data transmission group and the second data transmission group scheduled by the first downlink control information include uplink data transmission; if the first downlink control information is downlink scheduling DCI, the first data transmission group and the second data transmission group scheduled by the first downlink control information both contain downlink data transmission; in this case, it is not necessary to configure the first data transmission group and the second data transmission group separately The direction of data transfer.

The above situation is shown in Example 5 and Example 6:

Example five:

The terminal device receives the RRC signaling, where the RRC signaling indicates multiple carriers, including at least two carriers that can be scheduled by the first downlink control information.

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The first indication information and the second indication information indicate the same type of transmission configuration.

Example six:

The terminal device receives first downlink control information, where the first downlink control information includes a first information indication field and a second information indication field. Wherein, the first information indication field carries the first indication information, and the first indication information is used to indicate the transmission configuration of the data transmission in the first data transmission group; the second information indication field carries the second indication information, and the second indication information A transfer configuration for indicating data transfers in the second data transfer group. The first indication information and the second indication information indicate the same type of transmission configuration. The first downlink control information also carries identification information of the first carrier group and identification information of the second carrier group, for the terminal device to determine which two carrier groups are scheduled by the first downlink control information.

The above introduces several specific implementation methods for the terminal device to determine the data transmission corresponding to the carrier scheduled by the first downlink control information according to the instructions of the network device (such as a base station). This application does not exhaustively list the methods and does not exclude other Implementation of the same design idea.

The following describes several specific configuration methods:

Example 1, the network device sends the first downlink control information through CC0, and configures the terminal device with the first carrier group that can be scheduled by the first downlink control information including {CC 1, CC2, CC3, CC4}, the first downlink The second carrier group that can be scheduled by the control information includes {CC 5, CC6}; wherein, the PUCCH carriers corresponding to CC 1, CC2, CC3, and CC4 are the same, and the PUCCH carriers corresponding to CC 5 and CC6 are the same.

Example 2, the network device sends the first downlink control information through CC0, and configures the terminal device with the first carrier group that can be scheduled by the first downlink control information including {CC 1, CC3, CC4}, the first downlink control information The second carrier group that can be scheduled includes {CC2, CC5}. Among them, CC1, CC3, CC4, and CC0 are in the same bandwidth (such as band); CC2, CC5 and CC0 are in different bandwidths (such as band), and CC2 and CC5 can be in the same or different bandwidths.

Example 3, the network device sends the first downlink control information through CC0, and configures the terminal device with the first carrier group that can be scheduled by the first downlink control information including {CC 1, CC2, CC3, CC4}, the first downlink The second carrier group that can be scheduled by the control information includes {CC 5, CC6}. In addition, at least one data transmission in the first data transmission group corresponding to the first carrier group can be all uplink data transmission, or all can be downlink data transmission; at least one data transmission in the second data transmission group corresponding to the second carrier group Both may be uplink data transmission, or both may be downlink data transmission.

If the first data transmission group is all uplink data transmission, and the second data transmission group is all uplink data transmission, the scheduling result may be that each carrier in CC1-CC6 has a corresponding PUCCH transmission;

If the first data transmission group is all uplink data transmission, and the second data transmission group is all downlink data transmission, the scheduling result can be that each carrier in CC1~CC4 has a corresponding PUCCH transmission, CC5~CC6 Each carrier in has a corresponding PDCCH transmission;

If the first data transmission group is all downlink data transmission, and the second data transmission group is all uplink data transmission, the scheduling result can be that each carrier in CC1~CC4 has a corresponding PDCCH transmission, CC5~CC6 Each carrier in has a corresponding PUCCH transmission;

If the first data transmission group is all downlink data transmission and the second data transmission group is all downlink data transmission, the scheduling result is that each carrier in CC1-CC6 has a corresponding PDCCH transmission.

According to the first indication information and the second indication information carried in the first downlink control information, the terminal device may determine the transmission configuration corresponding to the data transmission in the first data transmission group and the second data transmission group. Several embodiments of the first downlink control information (hereinafter referred to as first DCI) are introduced below.

Embodiment one:

The first information indication field in the first DCI is a first frequency domain resource allocation field, and the first frequency domain resource allocation field carries first indication information for indicating frequency domain resources corresponding to data transmission in the first data transmission group;

The second information indication field in the first DCI is a second frequency domain resource allocation field, and the second frequency domain resource allocation field carries second indication information for indicating frequency domain resources corresponding to data transmission in the second data transmission group.

For example, two configuration resource allocation (FDRA, Frequency Domain Resource Assignment) fields are configured in the first DCI, including FDRA1 and FDRA2, which are used to indicate frequency domain resources corresponding to data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The FDRA1 field carries a frequency domain resource indication, and the value of the frequency domain resource indication is 0011100, so the frequency domain resource indication corresponding to data transmission on all carriers in the carrier group 1 is 0011100. It should be noted that frequency domain resources corresponding to data transmission on each carrier in carrier group one may be the same or different. For example, when determining the frequency domain resource corresponding to the data transmission on each carrier in carrier group 1, use the frequency domain resource to indicate the mapping to the RB range. The frequency domain resources obtained by mapping may be the same or different.

The FDRA2 field carries a frequency domain resource indication, and the value of the frequency domain resource indication is 1101001, so the frequency domain resource indication corresponding to data transmission on all carriers in the carrier group 2 is 1101001. Similarly, after mapping the frequency domain resource indication, frequency domain resources corresponding to data transmission on each carrier in carrier group 2 may also be the same or different.

Embodiment two:

The first information indication field in the first DCI is a first time domain resource allocation field, and the first time domain resource allocation field carries first indication information for indicating time domain resources corresponding to data transmission in the first data transmission group;

The second information indication field in the first DCI is a second time domain resource allocation field, and the second time domain resource allocation field carries second indication information for indicating time domain resources corresponding to data transmission in the second data transmission group.

For example, two Time Domain Resource Assignment (TDRA, Time Domain Resource Assignment) fields are configured in the first DCI, including TDRA1 and TDRA2, which are used to indicate time domain resources corresponding to data transmission of different carrier groups. The first DCI can schedule 2 configured carrier groups, carrier group 1 includes {CC1, CC2, CC3}, and carrier group 2 includes {CC4, CC5}.

The TDRA1 field carries a time-domain resource indication, and the value of the time-domain resource indication is 0011. Then, the time-domain resource indication corresponding to data transmission on all carriers in carrier group 1 is 0011. According to this indication, the terminal device can determine the carrier The time domain resources corresponding to the data transmission on each carrier in group 1 are the fourth row in the time domain resource list.

The TDRA2 field carries a time domain resource indication, and the value of the time domain resource indication is 0001, then the time domain resource indication corresponding to data transmission on all carriers in carrier group 1 is 0001, and according to this indication, the terminal device can determine the carrier The time domain resources corresponding to the data transmission on each carrier in group 2 are the second row in the time domain resource list.

Embodiment three:

The first information indication field in the first DCI is a first new data indication field, and the first new data indication field carries first indication information for indicating that the data transmission in the first data transmission group is retransmission or initial transmission;

The second information indication field in the first DCI is a second new data indication field, and the second new data indication field carries second indication information for indicating that the data transmission in the second data transmission group is retransmission or initial transmission.

For example, two New Data Indicator (NDI, New Data Indicator) fields are configured in the first DCI, including NDI1 and NDI2, which are used to indicate whether the data transmission corresponding to the data transmission of different carrier groups is retransmission or initial transmission. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

For the same HARQ process, if the indication information in the NDI1 field is the same as the indication information in the NDI1 field of the last transmission, the terminal device can determine that the data transmission on each carrier in carrier group 1 is a retransmission; if in the NDI1 field The indication information is different from the indication information in the NDI1 field of the last transmission, then the terminal device can determine that the data transmission on each carrier in carrier group 1 is the initial transmission;

For the same HARQ process, if the indication information in the NDI2 domain is the same as the indication information in the NDI2 domain of the last transmission, the terminal device can determine that the data transmission on each carrier in carrier group 2 is a retransmission; if in the NDI2 domain is different from the indication information in the NDI2 domain of the last transmission, the terminal device can determine that the data transmission on each carrier in carrier group 2 is initial transmission.

Embodiment four:

The first information indication field in the first DCI is a first redundancy version field, and the first redundancy version field carries first indication information for indicating the redundancy version corresponding to the data transmission in the first data transmission group;

The second information indication field in the first DCI is a second redundancy version field, and the second redundancy version field carries second indication information for indicating the redundancy version corresponding to the data transmission in the second data transmission group.

For example, two redundancy version (RV, Redundancy Version) fields, RV1 and RV2, are configured in the first DCI to indicate redundancy versions corresponding to data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The RV1 field carries a redundancy version indication, and the value of the redundancy version indication is 11. Then, the redundancy version indication corresponding to data transmission on all carriers in carrier group 1 is 11. According to this indication, the terminal device can determine the carrier group One uses redundancy version 3 for data transmission on each carrier.

The RV2 field carries a redundancy version indication. The value of the redundancy version indication is 01, and the redundancy version indication corresponding to data transmission on all carriers in carrier group 2 is 01. According to this indication, the terminal device can determine the carrier group Data transmission on each carrier in the second uses redundancy version 1.

Embodiment five:

The first information indication field in the first DCI is a first process identification indication field, and the first process identification indication field carries first indication information for indicating the HARQ process number corresponding to the data transmission in the first data transmission group;

The second information indication field in the first DCI is a second process identification indication field, and the second process identification indication field carries second indication information for indicating the HARQ process number corresponding to the data transmission in the second data transmission group.

For example, two process identification indication fields (HARQ-ID) fields are configured in the first DCI, including HARQ-ID1 and HARQ-ID2, which are used to indicate the HARQ process numbers corresponding to the data transmission of different carrier groups. The DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The HARQ-ID1 field carries the process identification indication, the value of the process identification indication is 0101, then the HARQ process number indication corresponding to the data transmission on all carriers in the carrier group 1 is 0101; according to this indication, the terminal device can determine the HARQ process number used for data transmission on each carrier in carrier group 1. Specifically, data transmission on different carriers in carrier group 1 may use the same HARQ process number, for example, data transmission on CC1, CC2, and CC3 all use the HARQ process number corresponding to 0101. Alternatively, different HARQ process numbers can be used for data transmission on different carriers in carrier group 1, such as starting with 0101 and increasing sequentially, and the HARQ process numbers used for data transmission on CC1, CC2, and CC3 can correspond to 0101 and 0110 respectively , 0111; as another example, starting with 0101 and decreasing in order, the HARQ process numbers used for data transmission on CC1, CC2, and CC3 may correspond to 0101, 0100, and 0011 respectively. The embodiment of the present application does not limit the specific method of determining the HARQ process number corresponding to each data transmission above, and is no longer exhaustive. The embodiment of the present application can use any preset rules and according to the HARQ-ID1 field carried in the Indicate to determine the HARQ process number used for data transmission corresponding to each carrier.

The HARQ-ID2 field carries the process identification indication, the value of the process identification indication is 0110, and the HARQ process number indication corresponding to the data transmission on all carriers in the carrier group 2 is 0110; according to this indication, the terminal device can determine the HARQ process number used for data transmission on each carrier in carrier group 2. The specific determination method is the same as the above determination method for carrier group 2, and will not be repeated here.

Embodiment six:

The first information indication field in the first DCI is the first uplink control channel resource indication field, and the first uplink control channel resource indication field carries the HARQ-ACK feedback used to indicate the data transmission corresponding to the first data transmission group The first indication information of the PUCCH resource;

The second information indication field in the first DCI is the second uplink control channel resource indication field, and the second uplink control channel resource indication field carries the HARQ-ACK feedback used to indicate the data transmission corresponding to the second data transmission group The second indication information of the PUCCH resource.

For example, two uplink control channel resource indicator (PRI, PUCCH Resource Indicator) fields are configured in the first DCI, including PRI1 and PRI2, which are used to indicate the PUCCH resources used by the HARQ-ACK feedback corresponding to the data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The PRI1 field carries the uplink control channel resource indication, and the value of the uplink control channel resource indication is 101, then the PUCCH resource indication used for HARQ-ACK feedback for data transmission on all carriers in carrier group 1 is 101; according to the indication , the terminal device may determine the PUCCH resource used by the HARQ-ACK feedback corresponding to the downlink transmission on each carrier in carrier group one.

The PRI2 field carries the uplink control channel resource indication, and the value of the uplink control channel resource indication is 110, so the PUCCH resource indication used for HARQ-ACK feedback for data transmission on all carriers in carrier group 2 is 110; according to the indication , the terminal device may determine the PUCCH resource used by the HARQ-ACK feedback corresponding to the downlink transmission on each carrier in the second carrier group.

Embodiment seven:

The first information indication field in the first DCI is a first feedback timing field, and the first feedback timing field carries first indication information for indicating the HARQ-ACK feedback timing corresponding to the data transmission in the first data transmission group;

The second information indication field in the first DCI is the second feedback timing field, and the second feedback timing field carries second indication information for indicating the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.

For example, two feedback timing (feedback timing) fields are configured in the first DCI, including feedback timing1 and feedback timing2, which are used to indicate the HARQ-ACK feedback timing corresponding to the data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The feedback timing1 field carries the feedback time domain indication, and the value of the feedback time domain indication can be 011, then the HARQ-ACK feedback timing indication corresponding to the data transmission on all carriers in carrier group 1 is 011; according to this indication, the terminal The device may determine that the HARQ-ACK feedback timing indication corresponding to the downlink transmission on each carrier in carrier group one is 011.

The feedback timing2 field carries the feedback time domain indication, and the value of the feedback time domain indication can be 010, then the HARQ-ACK feedback timing indication corresponding to the data transmission on all carriers in carrier group 2 is 010; according to this indication, the terminal The device may determine that the HARQ-ACK feedback timing indication corresponding to the downlink transmission on each carrier in the second carrier group is 010.

Embodiment eight:

The first information indication field in the first DCI is a first modulation and decoding field, and the first modulation and decoding field carries first indication information for indicating a modulation and decoding scheme used for data transmission in the first data transmission group;

The second information indication field in the first DCI is a second modulation and decoding field, and the second modulation and decoding field carries second indication information for indicating a modulation and decoding scheme used for data transmission in the data transmission group.

For example, two modulation and decoding fields are configured in the first DCI, including a first modulation and decoding field and a second modulation and decoding field, which are used to indicate modulation and decoding schemes corresponding to data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The first modulation and decoding field carries the modulation and decoding indication, and the value of the modulation and decoding indication can be 0110, then the modulation and decoding indication corresponding to data transmission on all carriers in carrier group 1 is 0110; according to this indication, the terminal device can determine The modulation and decoding scheme corresponding to data transmission on each carrier in carrier group 1 is the modulation and decoding scheme corresponding to 0110.

The second modulation and decoding field carries the modulation and decoding indication, and the value of the modulation and decoding indication can be 0111, then the modulation and decoding indication corresponding to the data transmission on all carriers in carrier group 2 is 0111; according to this indication, the terminal device can determine The modulation and decoding scheme corresponding to the data transmission on each carrier in the second carrier group is the modulation and decoding scheme corresponding to 0111.

Then, according to the correspondence between different values of the preset modulation and decoding indications and modulation and decoding schemes, the modulation and decoding scheme corresponding to each data transmission can be determined.

Embodiment nine:

The first information indication field in the first DCI is a first power control parameter field, and the first power control parameter field carries first indication information for indicating a power control parameter used for data transmission in the first data transmission group;

The second information indication field in the first DCI is a second power control parameter field, and the second power control parameter field carries second indication information for indicating a power control parameter used for data transmission in the second data transmission group.

For example, two power control parameter fields are configured in the first DCI, including a first power control parameter field and a second power control parameter field, which are used to indicate power control parameters corresponding to data transmission of different carrier groups. The first DCI can schedule two configured carrier groups, the first carrier group includes {CC1, CC2, CC3}, and the second carrier group includes {CC4, CC5}.

The power control parameter indication is carried in the first power control parameter field, and the value of the power control parameter indication may be 0010, then the power control parameter indication corresponding to data transmission on all carriers in carrier group 1 is 0010; according to the indication, The terminal device may determine that the power control parameter corresponding to data transmission on each carrier in carrier group one is the power control parameter corresponding to 0010.

The second power control parameter field carries a power control parameter indication, and the value of the power control parameter indication may be 0001, then the power control parameter indication corresponding to data transmission on all carriers in carrier group 2 is 0001; according to this indication, The terminal device may determine that the power control parameter corresponding to the data transmission on each carrier in the second carrier group is the power control parameter corresponding to 0001.

Then, according to the corresponding relationship between different values indicated by the preset power control parameters and the power control parameters, the power control parameters corresponding to each data transmission can be determined.

The above examples are described by taking carrier group 1 and carrier group 2 both including more than two carriers as examples. In other embodiments of the present application, carrier group 1 and/or carrier group 2 may only include one carrier. In this case, the first DCI is used to determine data transmission corresponding to the two carriers.

The embodiment of the present application also proposes a communication method, and FIG. 7 is a schematic flowchart of a communication method 700 according to an embodiment of the present application. The method can optionally be applied to the system shown in Fig. 1, but is not limited thereto. The method includes at least some of the following.

S710: The network device sends first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

In a possible implementation manner, in the embodiment of the present application, the first downlink control information is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission.

In a possible implementation manner, in the embodiment of the present application, the first downlink control information includes a first information indication field and a second information indication field;

The first information indication field carries transmission configuration information of data transmission in the first data transmission group;

The second information indication field carries transmission configuration information of data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the present application, the first data transmission group corresponds to a first carrier group, and the data transmission in the first data transmission group is related to the carriers in the first carrier group one-to-one correspondence;

In a possible implementation manner, in this embodiment of the present application, the transmission configuration information carried in the first information indication field and the second information indication field are of the same type.

In a possible implementation manner, in this embodiment of the application, the data transmission configuration indicated by the first indication information or the second indication information includes at least one of the following:

Frequency domain resource, time domain resource, new data indication, RV, modulation and decoding scheme, HARQ process number, power control parameter, PUCCH resource, and feedback timing.

In a possible implementation manner, in the embodiment of this application, the first data transmission group or the second data transmission group includes at least one downlink data transmission;

The carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier, and the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier The same as or different from the second PUCCH carrier.

In a possible implementation, in this embodiment of the present application, the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers in the first carrier group corresponding to the second data transmission group are within the same bandwidth. The carriers in the two-carrier group are in different bandwidths from the scheduled carrier; wherein, the scheduled carrier is a carrier that bears the first downlink control information.

In a possible implementation manner, in this embodiment of the present application, the data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

In a possible implementation, in the embodiment of the present application, the first information indication field is a first frequency domain resource allocation field, and the first frequency domain resource allocation field is used to indicate the first data transmission Frequency domain resources corresponding to data transmission in the group;

The second information indication field is a second frequency domain resource allocation field, and the second frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the present application, the first information indication field is a first time domain resource allocation field, and the first time domain resource allocation field is used to indicate that the first data transmission The time domain resource corresponding to the data transmission in the group;

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate time domain resources corresponding to data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the application, the first information indication field is a first new data indication field, and the first new data indication field is used to indicate the The data transmission is retransmission or initial transmission;

The second information indication field is a second new data indication field, and the second new data indication field is used to indicate that the data transmission in the second data transmission group is retransmission or initial transmission.

In a possible implementation, in this embodiment of the application, the first information indication field is a first redundancy version field, and the first redundancy version field is used to indicate the The corresponding redundant version of the data transmission;

The second information indication field is a second redundancy version field, and the second redundancy version field is used to indicate a redundancy version corresponding to data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the application, the first information indication field is a first process identification indication field, and the first process identification indication field is used to indicate the The HARQ process number corresponding to the data transmission;

The second information indication field is a second process identification indication field, and the second process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the present application, the first information indication field is a first uplink control channel resource indication field, and the first uplink control channel resource indication field is used to indicate the first The PUCCH resource used by the HARQ-ACK feedback corresponding to the data transmission in the data transmission group;

The second information indication field is a second uplink control channel resource indication field, and the second uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the second data transmission group PUCCH resources.

In a possible implementation, in this embodiment of the application, the first information indication field is a first feedback timing field, and the first feedback timing field is used to indicate the data in the first data transmission group Transmission corresponding HARQ-ACK feedback timing;

The second information indication field is a second feedback timing field, and the second feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the application, the first information indication field is a first modulation and decoding field, and the first modulation and decoding field is used to indicate the data in the first data transmission group The modulation and decoding scheme used for transmission;

The second information indication field is a second modulation and decoding field, and the second modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the second data transmission group.

In a possible implementation, in this embodiment of the application, the first information indication field is a first power control parameter field, and the first power control parameter field is used to indicate that the first data transmission group Power control parameters used for data transmission in ;

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field carries a power control parameter used for indicating data transmission in the second data transmission group.

In a possible implementation manner, in the embodiment of this application, it also includes:

The network device sends RRC signaling, where the RRC signaling indicates multiple carriers, where the multiple carriers include at least two carriers that can be scheduled by the first downlink control information; and/or,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group that can be scheduled by the first downlink control information.

In a possible implementation manner, in this embodiment of the present application, the RRC signaling also indicates that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

And/or, the RRC signaling further indicates that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.

In a possible implementation manner, in this embodiment of the present application, the first downlink control information indicates multiple scheduled carriers; and/or,

In a possible implementation manner, in the embodiment of the present application, the first downlink control information includes a first indication field and a second indication field;

In a possible implementation manner, the first downlink control information includes a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.

For a specific example of the method 700 performed by the network device in this embodiment, reference may be made to the relevant description about the terminal device in the above method 200, and details are not repeated here for the sake of brevity.

Fig. 8 is a schematic structural diagram of a network device 800 according to an embodiment of the present application. The network determination device 800 may include:

The first receiving unit 810 is configured to receive first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

In a possible implementation manner, in this embodiment of the application, the data transmission configuration includes at least one of the following:

In a possible implementation manner, in the embodiment of the present application, the first data transmission group or the second data transmission group includes at least one downlink data transmission; or,

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate the time domain resource corresponding to the data transmission in the second data transmission group.

In a possible implementation, in the embodiment of the present application, the first information indication field is the first RV field, and the first RV field is used to indicate that the data transmission in the first data transmission group corresponds to the RV;

The second information indication field is a second RV field, and the second RV field is used to indicate the RV corresponding to the data transmission in the second data transmission group.

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field is used to indicate a power control parameter used for data transmission in the second data transmission group.

FIG. 9 is a schematic structural diagram of a terminal device 900 according to another embodiment of the present application. The terminal device 900 includes one or more features of the foregoing embodiment of the terminal device 800 . In a possible implementation manner, in the embodiment of this application, it also includes:

The second receiving unit 910 is configured to receive radio resource control RRC signaling, where the RRC signaling indicates multiple carriers, and the multiple carriers include at least two carriers scheduled by the first downlink control information; and/ or,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group scheduled by the first downlink control information.

In a possible implementation manner, in the embodiment of the present application, the first downlink control information includes a third indication field;

FIG. 10 is a schematic structural diagram of a terminal device 1000 according to another embodiment of the present application. The terminal device 1000 includes one or more features of the foregoing terminal device 900 embodiment. In a possible implementation manner, in the embodiment of this application, it also includes:

The first determining unit 1010 is configured to determine the first carrier group and/or the second carrier group scheduled by the first downlink control information according to the PUCCH carrier corresponding to each carrier scheduled by the first downlink control information.

The second determining unit 1020 is configured to determine the first carrier group and/or the second carrier scheduled by the first downlink control information according to whether each carrier scheduled by the first downlink control information is within the same bandwidth as the scheduled carrier group; wherein, the scheduled carrier is a carrier that bears the first downlink control information.

FIG. 11 is a schematic structural diagram of a network device 1100 according to an embodiment of the present application. In a possible implementation manner, in this embodiment of the application, it includes:

The first sending unit 1110 is configured to send first downlink control information downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.

In a possible implementation manner, in the embodiment of the present application, the transmission configuration information carried in the first information indication field and the second information indication field are of the same type.

FIG. 12 is a schematic structural diagram of a network device 1200 according to another embodiment of the present application. The network device 1200 includes one or more features of the embodiments of the network device 1100 described above. In a possible implementation manner, in the embodiment of this application, it also includes:

The second sending unit 1210 is configured to send RRC signaling, where the RRC signaling indicates multiple carriers, and the multiple carriers include at least two carriers that can be scheduled by the first downlink control information; and/or,

Fig. 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application. The communication device 1300 includes a processor 1310, and the processor 1310 can invoke and run a computer program from a memory, so that the communication device 1300 implements the method in the embodiment of the present application.

In a possible implementation manner, the communication device 1300 may further include a memory 1320 . Wherein, the processor 1310 may invoke and run a computer program from the memory 1320, so that the communication device 1300 implements the method in the embodiment of the present application.

Wherein, the memory 1320 may be an independent device independent of the processor 1310 , or may be integrated in the processor 1310 .

In a possible implementation manner, the communication device 1300 may further include a transceiver 1330, and the processor 1310 may control the transceiver 1330 to communicate with other devices, specifically, to send information or data to other devices, or to receive information from other devices information or data sent.

Wherein, the transceiver 1330 may include a transmitter and a receiver. The transceiver 1330 may further include an antenna, and the number of antennas may be one or more.

In a possible implementation manner, the communication device 1300 may be the network device of the embodiment of the present application, and the communication device 1300 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, the This will not be repeated here.

In a possible implementation manner, the communication device 1300 may be the terminal device in the embodiment of the present application, and the communication device 1300 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, the This will not be repeated here.

FIG. 14 is a schematic structural diagram of a chip 1500 according to an embodiment of the present application. The chip 1500 includes a processor 1510, and the processor 1510 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

In a possible implementation manner, the chip 1500 may further include a memory 1520 . Wherein, the processor 1510 may invoke and run a computer program from the memory 1520, so as to implement the method performed by the terminal device or the network device in the embodiment of the present application.

Wherein, the memory 1520 may be an independent device independent of the processor 1510 , or may be integrated in the processor 1510 .

In a possible implementation manner, the chip 1500 may further include an input interface 1530 . Wherein, the processor 1510 can control the input interface 1530 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.

In a possible implementation manner, the chip 1500 may further include an output interface 1540 . Wherein, the processor 1510 can control the output interface 1540 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

In a possible implementation, the chip can be applied to the network device in the embodiment of the application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the application. For the sake of brevity, the Let me repeat.

In a possible implementation, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, the Let me repeat.

Chips applied to network devices and terminal devices may be the same chip or different chips.

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.

The processor mentioned above can be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc. Wherein, the general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.

The aforementioned memories may be volatile memories or nonvolatile memories, or may include both volatile and nonvolatile memories. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM).

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.

Fig. 15 is a schematic block diagram of a communication system 1600 according to an embodiment of the present application. The communication system 1600 includes a terminal device 1610 and a network device 1620 .

Wherein, the terminal device 1610 may be used to realize corresponding functions realized by the terminal device in the above method, and the network device 1620 may be used to realize corresponding functions realized by the network device in the above method. For the sake of brevity, details are not repeated here.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g. (such as coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (Solid State Disk, SSD)), etc.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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.

The above is only the 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, and should covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method of communication comprising:

The terminal device receives first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.
The method according to claim 1, wherein,

The first downlink control information is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission.
The method according to claim 1 or 2, wherein the first downlink control information includes a first information indication field and a second information indication field;

Among the at least two data transmissions corresponding to the at least two carriers, some of the data transmissions belong to the first data transmission group, and the other part of the data transmissions belong to the second data transmission group;

The first information indication field carries transmission configuration information of data transmission in the first data transmission group;

The second information indication field carries transmission configuration information of data transmission in the second data transmission group.
The method according to claim 3, wherein,

The first data transmission group corresponds to a first carrier group, and the data transmission in the first data transmission group corresponds to the carriers in the first carrier group one by one;

The second data transmission group corresponds to a second carrier group, and data transmission in the second data transmission group corresponds to carriers in the second carrier group one by one.
The method according to claim 3 or 4, wherein the types of transmission configuration information carried in the first information indication field and the second information indication field are the same.
The method according to claim 5, wherein the data transmission configuration comprises at least one of the following:

Frequency domain resources, time domain resources, new data indication, redundancy version RV, modulation and decoding scheme, hybrid automatic repeat request HARQ process number, power control parameters, physical uplink control channel PUCCH resources, and feedback timing.
The method according to any one of claims 3 to 6, wherein the first data transmission group or the second data transmission group includes at least one downlink data transmission; or,

The carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier, and the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier The same as or different from the second PUCCH carrier.
The method according to any one of claims 3 to 7, wherein the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers in the first carrier group corresponding to the second data transmission group are The carriers in the two-carrier group are in different bandwidths from the scheduled carrier; wherein, the scheduled carrier is a carrier that bears the first downlink control information.
A method according to any one of claims 3 to 8, wherein,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first frequency domain resource allocation field, and the first frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second frequency domain resource allocation field, and the second frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first time-domain resource allocation field, and the first time-domain resource allocation field is used to indicate time-domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate time domain resources corresponding to data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first new data indication field, and the first new data indication field is used to indicate that the data transmission in the first data transmission group is retransmission or initial transmission;

The second information indication field is a second new data indication field, and the second new data indication field is used to indicate that the data transmission in the second data transmission group is retransmission or initial transmission.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first redundancy version field, and the first redundancy version field is used to indicate the RV corresponding to the data transmission in the first data transmission group;

The second information indication field is a second redundancy version field, and the second redundancy version field is used to indicate the RV corresponding to the data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first process identification indication field, and the first process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the first data transmission group;

The second information indication field is a second process identification indication field, and the second process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first uplink control channel resource indication field, and the first uplink control channel resource indication field is used to indicate the HARQ-acknowledgment ACK feedback corresponding to the data transmission in the first data transmission group PUCCH resource;

The second information indication field is a second uplink control channel resource indication field, and the second uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the second data transmission group PUCCH resources.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first feedback timing field, and the first feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the first data transmission group;

The second information indication field is a second feedback timing field, and the second feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first modulation and decoding field, and the first modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the first data transmission group;

The second information indication field is a second modulation and decoding field, and the second modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the second data transmission group.
A method according to any one of claims 3 to 9, wherein,

The first information indication field is a first power adjustment control parameter field, and the first power control parameter field is used to indicate a power control parameter used for data transmission in the first data transmission group;

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field is used to indicate a power control parameter used for data transmission in the second data transmission group.
The method according to any one of claims 1 to 18, further comprising:

The terminal device receives radio resource control RRC signaling, where the RRC signaling indicates multiple carriers, where the multiple carriers include at least two carriers scheduled by the first downlink control information; and/or,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group scheduled by the first downlink control information.
The method according to claim 19, wherein the RRC signaling further indicates that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

And/or, the RRC signaling further indicates that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The method according to any one of claims 1 to 18, wherein the first downlink control information indicates a plurality of scheduled carriers; and/or,

The first downlink control information indicates at least one of the scheduled first carrier group and the second carrier group.
The method of claim 21, wherein,

The first downlink control information includes a first indication field and a second indication field;

The first indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

The second indication field is used to indicate that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The method of claim 21, wherein,

The first downlink control information includes a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
A method according to any one of claims 19 to 23, further comprising:

The terminal device determines the first carrier group and/or the second carrier group scheduled by the first downlink control information according to the PUCCH carriers corresponding to the carriers scheduled by the first downlink control information.
A method according to any one of claims 19 to 23, further comprising:

The terminal device determines the first carrier group and/or the second carrier group scheduled by the first downlink control information according to whether each carrier scheduled by the first downlink control information is within the same bandwidth as the scheduled carrier; wherein, The scheduled carrier is a carrier that bears the first downlink control information.
A method of communication comprising:

The network device sends first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.
The method according to claim 26, wherein the first downlink control information is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission.
The method according to claim 26 or 27, wherein the first downlink control information includes a first information indication field and a second information indication field;

Among the at least two data transmissions corresponding to the at least two carriers, some of the data transmissions belong to the first data transmission group, and the other part of the data transmissions belong to the second data transmission group;

The first information indication field carries transmission configuration information of data transmission in the first data transmission group;

The second information indication field carries transmission configuration information of data transmission in the second data transmission group.
The method of claim 28, wherein,

The first data transmission group corresponds to a first carrier group, and the data transmission in the first data transmission group corresponds to the carriers in the first carrier group one by one;

The second data transmission group corresponds to a second carrier group, and data transmission in the second data transmission group corresponds to carriers in the second carrier group one by one.
The method according to claim 28 or 29, wherein the transmission configuration information carried in the first information indication field and the second information indication field are of the same type.
The method of claim 30, wherein the data transfer configuration includes at least one of the following:

Frequency domain resource, time domain resource, new data indication, RV, modulation and decoding scheme, HARQ process number, power control parameter, PUCCH resource, and feedback timing.
The method according to any one of claims 28 to 31, wherein the first data transmission group or the second data transmission group includes at least one downlink data transmission; or,

The carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier, and the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier The same as or different from the second PUCCH carrier.
The method according to any one of claims 28 to 32, wherein the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers in the first carrier group corresponding to the second data transmission group are The carriers in the two-carrier group are in different bandwidths from the scheduled carrier; wherein, the scheduled carrier is a carrier that bears the first downlink control information.
A method according to any one of claims 28 to 33, wherein,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first frequency domain resource allocation field, and the first frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second frequency domain resource allocation field, and the second frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first time-domain resource allocation field, and the first time-domain resource allocation field is used to indicate time-domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate time domain resources corresponding to data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first new data indication field, and the first new data indication field is used to indicate that the data transmission in the first data transmission group is retransmission or initial transmission;

The second information indication field is a second new data indication field, and the second new data indication field is used to indicate that the data transmission in the second data transmission group is retransmission or initial transmission.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first redundancy version field, and the first redundancy version field is used to indicate the redundancy version corresponding to the data transmission in the first data transmission group;

The second information indication field is a second redundancy version field, and the second redundancy version field is used to indicate a redundancy version corresponding to data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first process identification indication field, and the first process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the first data transmission group;

The second information indication field is a second process identification indication field, and the second process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first uplink control channel resource indication field, and the first uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the first data transmission group PUCCH resources;

The second information indication field is a second uplink control channel resource indication field, and the second uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the second data transmission group PUCCH resources.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first feedback timing field, and the first feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the first data transmission group;

The second information indication field is a second feedback timing field, and the second feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first modulation and decoding field, and the first modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the first data transmission group;

The second information indication field is a second modulation and decoding field, and the second modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the second data transmission group.
A method according to any one of claims 28 to 34, wherein,

The first information indication field is a first power adjustment control parameter field, and the first power control parameter field is used to indicate a power control parameter used for data transmission in the first data transmission group;

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field carries a power control parameter used for indicating data transmission in the second data transmission group.
A method according to any one of claims 26 to 43, further comprising:

The network device sends RRC signaling, where the RRC signaling indicates multiple carriers, where the multiple carriers include at least two carriers that can be scheduled by the first downlink control information; and/or,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group that can be scheduled by the first downlink control information.
The method according to claim 44, wherein the RRC signaling further indicates that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

And/or, the RRC signaling further indicates that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The method according to any one of claims 26 to 43, wherein the first downlink control information indicates a plurality of scheduled carriers; and/or,

The first downlink control information indicates at least one of the scheduled first carrier group and the second carrier group.
The method of claim 46, wherein,

The first downlink control information includes a first indication field and a second indication field;

The first indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

The second indication field is used to indicate that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The method of claim 46, wherein,

The first downlink control information includes a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
A terminal device comprising:

The first receiving unit is configured to receive first downlink control information, and the first downlink control information is used to determine data transmission corresponding to at least two carriers.
The terminal device according to claim 49, wherein the first downlink control information is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission.
The terminal device according to claim 49 or 50, wherein the first downlink control information includes a first information indication field and a second information indication field;

Among the at least two data transmissions corresponding to the at least two carriers, some of the data transmissions belong to the first data transmission group, and the other part of the data transmissions belong to the second data transmission group;

The first information indication field carries transmission configuration information of data transmission in the first data transmission group;

The second information indication field carries transmission configuration information of data transmission in the second data transmission group.
The terminal device according to claim 51, wherein,

The first data transmission group corresponds to a first carrier group, and the data transmission in the first data transmission group corresponds to the carriers in the first carrier group one by one;

The second data transmission group corresponds to a second carrier group, and data transmission in the second data transmission group corresponds to carriers in the second carrier group one by one.
The terminal device according to claim 51 or 52, wherein the types of transmission configuration information carried in the first information indication field and the second information indication field are the same.
The terminal device according to claim 53, wherein the data transmission configuration comprises at least one of the following:

Frequency domain resource, time domain resource, new data indication, RV, modulation and decoding scheme, HARQ process number, power control parameter, PUCCH resource, and feedback timing.
The terminal device according to any one of claims 51 to 54, wherein the first data transmission group or the second data transmission group includes at least one downlink data transmission; or,

The carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier, and the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier The same as or different from the second PUCCH carrier.
The terminal device according to any one of claims 51 to 55, wherein the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers corresponding to the second data transmission group The carriers in the second carrier group are in different bandwidths from the scheduled carrier; wherein the scheduled carrier is a carrier that bears the first downlink control information.
A terminal device according to any one of claims 51 to 56, wherein,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first frequency domain resource allocation field, and the first frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second frequency domain resource allocation field, and the second frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first time-domain resource allocation field, and the first time-domain resource allocation field is used to indicate time-domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate time domain resources corresponding to data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first new data indication field, and the first new data indication field is used to indicate that the data transmission in the first data transmission group is retransmission or initial transmission;

The second information indication field is a second new data indication field, and the second new data indication field is used to indicate that the data transmission in the second data transmission group is retransmission or initial transmission.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first RV field, and the first RV field is used to indicate the RV corresponding to the data transmission in the first data transmission group;

The second information indication field is a second RV field, and the second RV field is used to indicate the RV corresponding to the data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first process identification indication field, and the first process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the first data transmission group;

The second information indication field is a second process identification indication field, and the second process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first uplink control channel resource indication field, and the first uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the first data transmission group PUCCH resources;

The second information indication field is a second uplink control channel resource indication field, and the second uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the second data transmission group PUCCH resources.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first feedback timing field, and the first feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the first data transmission group;

The second information indication field is a second feedback timing field, and the second feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first modulation and decoding field, and the first modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the first data transmission group;

The second information indication field is a second modulation and decoding field, and the second modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the second data transmission group.
A terminal device according to any one of claims 51 to 57, wherein,

The first information indication field is a first power adjustment control parameter field, and the first power control parameter field is used to indicate a power control parameter used for data transmission in the first data transmission group;

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field is used to indicate a power control parameter used for data transmission in the second data transmission group.
A terminal device according to any one of claims 49 to 66, further comprising:

The second receiving unit is configured to receive radio resource control RRC signaling, where the RRC signaling indicates multiple carriers, and the multiple carriers include at least two carriers scheduled by the first downlink control information; and/or ,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group scheduled by the first downlink control information.
The terminal device according to claim 67, wherein the RRC signaling further indicates that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

And/or, the RRC signaling further indicates that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The terminal device according to any one of claims 49 to 66, wherein the first downlink control information indicates multiple scheduled carriers; and/or,

The first downlink control information indicates at least one of the scheduled first carrier group and the second carrier group.
The terminal device according to claim 69, wherein,

The first downlink control information includes a first indication field and a second indication field;

The first indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

The second indication field is used to indicate that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The terminal device according to claim 69, wherein,

The first downlink control information includes a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The terminal device according to any one of claims 67 to 70, further comprising:

The first determining unit is configured to determine the first carrier group and/or the second carrier group scheduled by the first downlink control information according to the PUCCH carriers corresponding to the carriers scheduled by the first downlink control information.
The terminal device according to any one of claims 67 to 70, further comprising:

The second determining unit is configured to determine the first carrier group and/or the second carrier group scheduled by the first downlink control information according to whether each carrier scheduled by the first downlink control information is within the same bandwidth as the scheduled carrier ; Wherein, the scheduled carrier is a carrier that bears the first downlink control information.
A network device comprising:

The first sending unit is configured to send first downlink control information, where the first downlink control information is used to determine data transmission corresponding to at least two carriers.
The network device according to claim 74, wherein the first downlink control information is used to determine at least two data transmissions corresponding to at least two carriers, and each carrier corresponds to one data transmission.
The network device according to claim 74 or 75, wherein the first downlink control information includes a first information indication field and a second information indication field;

Among the at least two data transmissions corresponding to the at least two carriers, some of the data transmissions belong to the first data transmission group, and the other part of the data transmissions belong to the second data transmission group;

The first information indication field carries transmission configuration information of data transmission in the first data transmission group;

The second information indication field carries transmission configuration information of data transmission in the second data transmission group.
The network device of claim 76, wherein:

The first data transmission group corresponds to a first carrier group, and the data transmission in the first data transmission group corresponds to the carriers in the first carrier group one by one;

The second data transmission group corresponds to a second carrier group, and data transmission in the second data transmission group corresponds to carriers in the second carrier group one by one.
The network device according to claim 76 or 77, wherein the transmission configuration information carried in the first information indication field and the second information indication field are of the same type.
The network device of claim 78, wherein the data transmission configuration comprises at least one of the following:

Frequency domain resource, time domain resource, new data indication, RV, modulation and decoding scheme, HARQ process number, power control parameter, PUCCH resource, and feedback timing.
The network device according to any one of claims 76 to 79, wherein the first data transmission group or the second data transmission group includes at least one downlink data transmission; or,

The carrier in the first carrier group corresponding to the first data transmission group corresponds to the first PUCCH carrier, and the carrier in the second carrier group corresponding to the second data transmission group corresponds to the second PUCCH carrier; the first PUCCH carrier The same as or different from the second PUCCH carrier.
The network device according to any one of claims 76 to 80, wherein the carriers in the first carrier group corresponding to the first data transmission group are within the same bandwidth as the scheduled carrier, and the carriers in the second data transmission group correspond to The carriers in the second carrier group are in different bandwidths from the scheduled carrier; wherein the scheduled carrier is a carrier that bears the first downlink control information.
A network device according to any one of claims 76 to 81, wherein,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is uplink data transmission, and the data transmission included in the second data transmission group is downlink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is uplink data transmission; or,

The data transmission included in the first data transmission group is downlink data transmission, and the data transmission included in the second data transmission group is downlink data transmission.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first frequency domain resource allocation field, and the first frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second frequency domain resource allocation field, and the second frequency domain resource allocation field is used to indicate frequency domain resources corresponding to data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first time-domain resource allocation field, and the first time-domain resource allocation field is used to indicate time-domain resources corresponding to data transmission in the first data transmission group;

The second information indication field is a second time domain resource allocation field, and the second time domain resource allocation field is used to indicate time domain resources corresponding to data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first new data indication field, and the first new data indication field is used to indicate that the data transmission in the first data transmission group is retransmission or initial transmission;

The second information indication field is a second new data indication field, and the second new data indication field is used to indicate that the data transmission in the second data transmission group is retransmission or initial transmission.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first redundancy version field, and the first redundancy version field is used to indicate the redundancy version corresponding to the data transmission in the first data transmission group;

The second information indication field is a second redundancy version field, and the second redundancy version field is used to indicate a redundancy version corresponding to data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first process identification indication field, and the first process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the first data transmission group;

The second information indication field is a second process identification indication field, and the second process identification indication field is used to indicate the HARQ process number corresponding to the data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first uplink control channel resource indication field, and the first uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the first data transmission group PUCCH resources;

The second information indication field is a second uplink control channel resource indication field, and the second uplink control channel resource indication field is used to indicate the HARQ-ACK feedback corresponding to the data transmission in the second data transmission group PUCCH resources.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first feedback timing field, and the first feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the first data transmission group;

The second information indication field is a second feedback timing field, and the second feedback timing field is used to indicate the HARQ-ACK feedback timing corresponding to the data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first modulation and decoding field, and the first modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the first data transmission group;

The second information indication field is a second modulation and decoding field, and the second modulation and decoding field is used to indicate a modulation and decoding scheme used for data transmission in the second data transmission group.
A network device according to any one of claims 76 to 82, wherein,

The first information indication field is a first power adjustment control parameter field, and the first power control parameter field is used to indicate a power control parameter used for data transmission in the first data transmission group;

The second information indication field is a second power adjustment control parameter field, and the second power control parameter field is used to indicate a power control parameter used for data transmission in the second data transmission group.
A network device according to any one of claims 74 to 91, further comprising:

The second sending unit is configured to send RRC signaling, where the RRC signaling indicates multiple carriers, and the multiple carriers include at least two carriers that can be scheduled by the first downlink control information; and/or,

The RRC signaling indicates multiple carrier groups, and the multiple carrier groups include at least one of the first carrier group and the second carrier group that can be scheduled by the first downlink control information.
The network device according to claim 92, wherein the RRC signaling further indicates that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

And/or, the RRC signaling further indicates that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The network device according to any one of claims 74 to 91, wherein the first downlink control information indicates multiple scheduled carriers; and/or,

The first downlink control information indicates at least one of the scheduled first carrier group and the second carrier group.
The network device of claim 94, wherein:

The first downlink control information includes a first indication field and a second indication field;

The first indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission;

The second indication field is used to indicate that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
The network device of claim 94, wherein:

The first downlink control information includes a third indication field;

The third indication field is used to indicate that the data transmission corresponding to the first carrier group is uplink data transmission or downlink data transmission, and that the data transmission corresponding to the second carrier group is uplink data transmission or downlink data transmission.
A terminal device, comprising: a processor and a memory, the memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory, so that the terminal device executes the computer program according to claims 1 to 25 any one of the methods described.
A network device, comprising: 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, so that the network device performs the tasks described in claims 26 to 48 any one of the methods described.
A chip, comprising: a processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 25.
A chip, comprising: a processor, configured to invoke and run a computer program from a memory, so that a device equipped with the chip executes the method as claimed in any one of claims 26 to 48.
A computer-readable storage medium for storing a computer program, which causes the device to execute the method according to any one of claims 1 to 25 when the computer program is run by a device.
A computer-readable storage medium for storing a computer program that causes the device to perform the method as claimed in any one of claims 26 to 48 when the computer program is executed by a device.
A computer program product comprising computer program instructions causing a computer to perform the method as claimed in any one of claims 1 to 25.
A computer program product comprising computer program instructions causing a computer to perform the method as claimed in any one of claims 26 to 48.
A computer program which causes a computer to carry out the method according to any one of claims 1 to 25.
A computer program that causes a computer to perform the method as claimed in any one of claims 26 to 48.
A communication system comprising:

A terminal device, configured to perform the method according to any one of claims 1 to 25;

A network device configured to execute the method as claimed in any one of claims 26 to 48.