Method, apparatus, device and storage medium for data transmission

Abstract

This application discloses a method, apparatus, device, and storage medium for data transmission, relating to the field of mobile communications. The method includes: receiving a Data Interchange Container (DCI), the DCI including a first information field; determining, based on information carried in the first information field, whether the DCI schedules data transmission on multiple carriers or schedules data transmission on a first carrier among the multiple carriers; and determining, based on information carried in the first information field of the received DCI, whether a network device schedules data transmission on multiple carriers or on a first carrier among the multiple carriers. Regardless of the DCI format, one or more carriers for scheduled data transmission can be determined based on the first information field, thus extending the method for determining the carriers scheduled by the DCI and improving the accuracy of determining the carriers scheduled by the DCI.

Description

Technical Field

[0001] This application relates to the field of mobile communications, and in particular to a method, apparatus, device and storage medium for data transmission. Background Technology

[0002] In NR (New Radio) systems, network devices configure different DCI (Downlink Control Information) formats for terminal devices to meet the different scheduling needs of the network devices.

[0003] Network devices can schedule data transmission for a single carrier using the DCI format configured for terminal devices. However, to prevent conflicts between the CRS (Cell Reference Signal) transmission of 4G (4th generation mobile communication technology) systems and the DCI transmission of NR systems, a method is proposed where network devices schedule multiple carriers for data transmission using a new DCI format. This reduces DCI transmission and thus reduces transmission conflicts. Since terminals only support a reference number of DCI formats, the new DCI format can affect other DCI formats. Therefore, a method for determining the carrier to schedule for DCI is urgently needed. Summary of the Invention

[0004] This application provides a method, apparatus, device, and storage medium for data transmission. Regardless of the DCI format, it can determine the data transmission on multiple carriers or the first carrier among multiple carriers based on the first information field, thus expanding the method for determining data transmission on DCI scheduled carriers and improving the accuracy of determining the carrier for DCI scheduled data transmission. The technical solution is as follows:

[0005] According to one aspect of this application, a method for data transmission is provided, applied to a terminal device, the method comprising:

[0006] Receive DCI, wherein the DCI includes a first information field;

[0007] Based on the information carried by the first information field, it is determined whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

[0008] According to one aspect of this application, a method for data transmission is provided, applied to a network device, the method comprising:

[0009] Send a DCI, wherein the DCI includes a first information field;

[0010] The information carried in the first information field is used to instruct the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers.

[0011] According to one aspect of this application, an apparatus for data transmission is provided, disposed in a terminal device, the apparatus comprising:

[0012] A receiving module is used to receive a DCI, wherein the DCI includes a first information field;

[0013] The determining module is used to determine, based on the information carried in the first information field, the data transmission on the multiple carriers scheduled by the DCI or the data transmission on the first carrier among the multiple carriers.

[0014] According to one aspect of this application, an apparatus for data transmission is provided, disposed in a network device, the apparatus comprising:

[0015] A sending module is used to send a DCI, wherein the DCI includes a first information field;

[0016] The information carried in the first information field is used to instruct the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers.

[0017] According to one aspect of this application, a terminal device is provided, the terminal device comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method for data transmission as described above.

[0018] According to one aspect of this application, a network device is provided, the network device comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method for data transmission as described above.

[0019] According to one aspect of this application, a computer-readable storage medium is provided, wherein executable program code is stored therein, the executable program code being loaded and executed by a processor to implement the method for data transmission as described above.

[0020] According to one aspect of this application, a chip is provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is operated on a terminal device or network device, are used to implement the method for data transmission as described above.

[0021] According to one aspect of this application, an embodiment of this application provides a computer program product that, when executed by a processor of a terminal device or a network device, is used to implement the method for data transmission described above.

[0022] The technical solutions provided in this application have at least the following beneficial effects:

[0023] The methods, apparatus, devices, and storage media provided in this application enable a terminal device to determine whether a network device should schedule data transmission on multiple carriers or on the first carrier among multiple carriers based on information carried in the first information field of the received DCI. Regardless of the format of the DCI, the method for determining data transmission on multiple carriers or the first carrier among multiple carriers can be determined based on the first information field. This expands the method for determining data transmission on carriers scheduled by DCI and improves the accuracy of determining the carrier for DCI data transmission. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A block diagram of a communication system provided in an exemplary embodiment of this application is shown.

[0026] Figure 2 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0027] Figure 3 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0028] Figure 4 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0029] Figure 5 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0030] Figure 6 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0031] Figure 7 A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown.

[0032] Figure 8 A block diagram of a communication apparatus provided in an exemplary embodiment of this application is shown.

[0033] Figure 9 A block diagram of a communication apparatus provided in an exemplary embodiment of this application is shown.

[0034] Figure 10 A schematic diagram of the structure of a communication device provided in an exemplary embodiment of this application is shown. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0036] First, the application scenarios of this application will be explained:

[0037] Figure 1 A block diagram of a communication system provided in an exemplary embodiment of this application is shown. The communication system may include an access network 12 and a terminal device 13.

[0038] Access network 12 includes several network devices 120. Each network device 120 can be a base station, which is a device deployed in the access network to provide wireless communication functions for terminal devices. Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the names of devices with base station functions may differ; for example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. As communication technologies evolve, the description of "base station" may change. For convenience in this embodiment, the devices providing wireless communication functions for terminal device 13 are collectively referred to as access network devices.

[0039] Terminal device 13 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminal devices, etc. For ease of description, the devices mentioned above are collectively referred to as terminal devices. Access network device 120 and terminal device 13 communicate with each other through some air interface technology, such as a Uu interface.

[0040] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN) system. Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems, or other communication systems.

[0041] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) systems. The embodiments of this application can also be applied to these communication systems.

[0042] Figure 2A flowchart illustrating a method for data transmission provided in an exemplary embodiment of this application is shown, applicable to, for example... Figure 1 In the terminal device and network device shown, the method includes at least some of the following:

[0043] Step 210: The network device sends the DCI.

[0044] Step 220: The terminal device receives the DCI.

[0045] The DCI includes the first information domain.

[0046] In this embodiment, the network device sends a DCI to the terminal device to schedule data transmission on multiple carriers or on the first carrier among multiple carriers, thereby enabling communication between the terminal device and the network device.

[0047] The first carrier is either one of multiple carriers or a subset of multiple carriers.

[0048] In some embodiments, the network device sends configuration information to the terminal device to configure carrier combinations that can be scheduled simultaneously for the terminal device. For example, the network device configures the same carrier identifier for multiple carriers, or the network device directly configures a carrier set for the terminal device, which includes multiple carriers, and different carrier sets are marked with different set identifiers.

[0049] In some embodiments, the DCI is a first DCI format, and the DCI corresponding to the first DCI format is used to schedule data transmission for one or more carriers. The first DCI format may be a new DCI format different from the DCI formats in the prior art, and the network device will configure whether the terminal device uses the first DCI format.

[0050] In some embodiments, the first information field includes at least one of the following:

[0051] (1) Back format indicator field.

[0052] The fallback format indication field is a dedicated indication field used to indicate one or more carriers corresponding to the data transmission scheduled by DCI.

[0053] (2) Frequency domain resource indicator domain.

[0054] The frequency domain resource indicator field is used to indicate frequency domain resources.

[0055] (3) Time-domain resource indicator domain.

[0056] The time-domain resource indicator field is used to indicate time-domain resources.

[0057] (4) Carrier indication field.

[0058] The carrier indication field is used to indicate the carrier where the resource is located.

[0059] (5) Modulation coding method indicator field.

[0060] The modulation coding scheme indicator field is used to indicate the modulation coding scheme.

[0061] (6) PUCCH (Physical Uplink Control Channel) feedback timing indication field.

[0062] The PUCCH feedback timing indicator field is used to indicate the PUCCH feedback timing.

[0063] (7) PUCCH resource indicator field.

[0064] The PUCCH resource indicator field is used to indicate PUCCH resources.

[0065] (8) New data indication field.

[0066] The new data indication field is used to indicate the data transmission status. This data transmission status includes new data transmission status or retransmission data status.

[0067] Step 230: The terminal device determines, based on the information carried in the first information field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers using the DCI.

[0068] In this embodiment, the first information field of the DCI carries information. After receiving the DCI, the terminal device can obtain the information carried in the first information field, and then determine whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among multiple carriers based on the information carried in the first information field.

[0069] In some embodiments, the first information field included in the DCI corresponds to multiple cases. The terminal device determines whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the information carried by different first information fields.

[0070] It should be noted that the embodiments in this application are only used as an example to illustrate the determination of data transmission on a first carrier among multiple carriers. In another embodiment, the terminal device determines these multiple carriers based on the carrier indication field in the DCI.

[0071] The method provided in this application embodiment allows a terminal device to determine whether a network device should schedule data transmission on multiple carriers or on the first carrier among multiple carriers based on the information carried in the first information field of the received DCI. Regardless of the format of the DCI, the method can determine whether to schedule data transmission on multiple carriers or on the first carrier among multiple carriers based on the first information field. This expands the method for determining data transmission on carriers scheduled by DCI and improves the accuracy of determining the carrier for DCI-scheduled data transmission.

[0072] Figure 2 The embodiment is illustrated using only the first information field as an example. Figure 2 Based on the embodiments shown, Figure 3 A flowchart illustrating a method for data transmission according to an exemplary embodiment of this application is shown. See also Figure 3 If the first information field includes a rollback format indicator field, then step 230 is replaced by step 330:

[0073] Step 330: The terminal device determines, based on the fallback format indication field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers using the DCI scheduling method.

[0074] In this embodiment, the fallback format indication field carries bit information, which includes different values. The terminal device determines whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the value of the fallback format indication field.

[0075] In some embodiments, the terminal device determines whether to schedule data transmission on multiple carriers or to schedule data transmission on a first carrier among multiple carriers based on the value of the fallback format indication field, including any of the following cases:

[0076] (1) When the value of the backoff format indicator field is the first value, DCI schedules data transmission on the first carrier among multiple carriers.

[0077] Wherein, the first carrier is the carrier with the smallest index identifier among multiple carriers, or the first carrier is the carrier with the largest index identifier among multiple carriers.

[0078] In this embodiment, the carrier wave has an index identifier. The index identifier is 0, 1, 2, or other values.

[0079] If the fallback format indicator field is determined to be the first value, it indicates that the DCI schedules the data of the first carrier among multiple carriers, and the first carrier is the carrier with the smallest or largest index identifier.

[0080] (2) When the value of the backoff format indicator field is the second value, DCI schedules data transmission on multiple carriers.

[0081] It should be noted that the embodiments in this application are only used as an example to illustrate how a terminal device determines the data transmission on multiple carriers or the data transmission on the first carrier among multiple carriers based on the fallback format indication field. In another embodiment, the DCI also includes a carrier indication field, and the terminal device determines multiple carriers based on the carrier indication field, and then determines the data transmission on the multiple carriers or the first carrier among multiple carriers to be scheduled based on the fallback format indication field.

[0082] In some embodiments, the rollback format indication field includes 1 bit, or the rollback format indication field includes 2 bits.

[0083] The following explains the cases where the fallback format indicator field includes different bit information:

[0084] The first type: The backoff format indicator field includes 1 bit. In this case, determining whether DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among multiple carriers includes either of the following:

[0085] (1) When the fallback format indicator field is the first value, determine the data transmission on the first carrier among the multiple carriers scheduled by DCI.

[0086] Wherein, the first carrier is the carrier with the largest index identifier among multiple carriers, or the first carrier is the carrier with the smallest index identifier among multiple carriers.

[0087] The fallback format indicator field includes 1 bit, in which case the first value is 0, or the first value is 1, or the first value is any other value.

[0088] (2) When the fallback format indicator field is the second value, determine the data transmission on multiple carriers scheduled by DCI.

[0089] The second value can be 0, 1, or any other value.

[0090] It should be noted that the first and second values ​​in the embodiments of this application are different values. For example, when the first value is 0, the second value is 1, or when the first value is 1, the second value is 0.

[0091] The second type involves a 2-bit backoff format indicator field. In this case, determining whether DCI schedules data transmission on multiple carriers or on the first carrier among multiple carriers includes either of the following:

[0092] (1) When the fallback format indicator field is the first value, determine the data transmission on the first carrier among the multiple carriers scheduled by DCI.

[0093] Wherein, the first carrier is the carrier with the largest index identifier among multiple carriers, or the first carrier is the carrier with the smallest index identifier among multiple carriers.

[0094] The rollback format indicator field includes 2 bits, where the first value is 00, or 01, or 10, or 11, or any other value.

[0095] (2) When the fallback format indicator field is the second value, determine the data transmission on multiple carriers scheduled by DCI.

[0096] The backoff format indicator field includes 2 bits, and the second value is 00, or 01, or 10, or 11, or other values.

[0097] It should be noted that the first and second values ​​in the embodiments of this application are different values. For example, when the first value is 00, the second value is 01, 10, or 11. Or, when the first value is 01, the second value is 00, 10, or 11. Or, when the first value is 10, the second value is 00, 01, or 11. Or, when the first value is 11, the second value is 00, 01, or 10.

[0098] The method provided in this application determines whether the data transmission on multiple carriers or the data transmission on the first carrier among multiple carriers is scheduled by DCI based on the fallback format indication field. Regardless of the DCI format, the method can determine whether the data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the fallback format indication field, thereby expanding the method for determining the data transmission on the carrier scheduled by DCI and improving the accuracy of determining the carrier for DCI data transmission.

[0099] Figure 2 The embodiment is illustrated using only the first information field as an example. Figure 2 Based on the embodiments shown, Figure 4 A flowchart illustrating a method for data transmission according to an exemplary embodiment of this application is shown. See also Figure 4 If the first information field includes a resource indication field, then step 230 is replaced by step 430:

[0100] Step 430: The terminal device determines, based on the resource indication information carried in the resource indication field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers using the DCI.

[0101] In this embodiment, the resource indication field carries resource indication information. The terminal device determines whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the resource indication information carried in the resource indication field.

[0102] In some embodiments, the resource indication information carried by the resource indication field includes first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is a first carrier, and the carrier corresponding to the second resource indication information is a second carrier among multiple carriers. The first carrier and the second carrier are different.

[0103] Wherein, the first carrier is the carrier with the largest index among the multiple carriers, and the second carrier is the carrier with the smallest index among the multiple carriers. Alternatively, the first carrier is the carrier with the smallest index among the multiple carriers, and the second carrier is the carrier with the largest index among the multiple carriers.

[0104] In this case, determining whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers by DCI includes any of the following:

[0105] (1) When the resource indication information carried in the resource indication field is the first resource indication information, DCI schedules the data transmission on the first carrier among multiple carriers.

[0106] (2) When the resource indication information carried in the resource indication field is the second resource indication information, DCI schedules the data transmission on the second carrier among multiple carriers.

[0107] In some embodiments, if the first resource indication information is invalid and the second resource indication information is valid, the DCI schedules data transmission on the second carrier.

[0108] The invalidity of the first or second resource indication information is indicated by a reference value. For example, the reference value may be 00, 11, or other values, which is not limited in this embodiment.

[0109] For example, if all values ​​of the first resource indication information are 0, it indicates that the first resource indication information is invalid; if not all values ​​of the first resource indication information are 0, it indicates that the first resource indication information is valid. Similarly, if all values ​​of the second resource indication information are 0, it indicates that the second resource indication information is invalid; if not all values ​​of the second resource indication information are 0, it indicates that the second resource indication information is valid.

[0110] In other embodiments, when the second resource indication information is invalid and the first resource indication information is valid, the DCI schedules data transmission on the first carrier.

[0111] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

[0112] The resource indication information included in the DCI is used to indicate multiple resources. The terminal device can determine the corresponding carrier based on each of the multiple resources, and thus determine the multiple carriers scheduled by the DCI.

[0113] For example, if the resource indication information includes first resource indication information and second resource indication information, then the terminal device will schedule the carriers corresponding to the resources indicated by the first resource indication information and the second resource indication information, respectively.

[0114] It should be noted that the embodiments in this application are only illustrated using a resource indicator field as an example. In another embodiment, the resource indicator field can be a frequency domain resource indicator field, or it can also be a time domain resource indicator field; the embodiments in this application do not impose any limitations.

[0115] When the resource indication domain is a frequency domain resource indication domain, the resource indication information is used to indicate frequency domain resources. When the resource indication domain is a time domain resource indication domain, the resource indication information is used to indicate time domain resources.

[0116] The method provided in this application determines whether data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the resource indication field. Regardless of the DCI format, it can determine whether data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the resource indication field. This expands the method for determining data transmission on carriers scheduled by DCI and improves the accuracy of determining the carrier for DCI-scheduled data transmission.

[0117] Figure 2 The embodiment is illustrated using only the first information field as an example. Figure 2 Based on the embodiments shown, Figure 5 A flowchart illustrating a method for data transmission according to an exemplary embodiment of this application is shown. See also Figure 5 If the first information field includes a carrier indication field, then step 230 is replaced by step 530:

[0118] Step 530: The terminal device determines the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the carrier indicated by the carrier indication field.

[0119] In some embodiments, when the carrier indication field indicates multiple carriers, it is determined that the DCI schedules data transmission on multiple carriers.

[0120] In other embodiments, when the carrier indicated by the carrier indication field is a first carrier, the DCI schedules the data transmission on the first carrier.

[0121] In some embodiments, the carrier indication field configures carrier indication information, which is used to indicate one or more carriers.

[0122] If the carrier indication information indicates a single carrier, the terminal device determines, based on this carrier indication information, the data transmission on the first carrier among multiple carriers scheduled by the DCI. Conversely, if the carrier indication information indicates multiple carriers, the terminal device determines, based on this carrier indication information, the data transmission on multiple carriers scheduled by the DCI.

[0123] For example, carrier 1 is configured with two carrier indication messages, namely carrier indication message 2 and carrier indication message 5. Carrier 2 is configured with two carrier indication messages, namely carrier indication message 4 and carrier indication message 5.

[0124] If the value corresponding to the carrier indication field is 5, the DCI schedules two data transmissions, which are transmitted on carrier 1 and carrier 2 respectively.

[0125] If the value corresponding to the carrier indication field is 2, the DCI schedules 1 data transmission, which is transmitted on carrier 1.

[0126] If the value corresponding to the carrier indication field is 4, the DCI schedules 1 data transmission, which is transmitted on carrier 2.

[0127] The method provided in this application determines whether the data transmission on multiple carriers or the data transmission on the first carrier among multiple carriers is scheduled by DCI based on the carrier indication field. Regardless of the format of DCI, it can determine whether the data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the carrier indication field, thus expanding the method for determining the data transmission on the carrier scheduled by DCI and improving the accuracy of determining the carrier for DCI data transmission.

[0128] Figure 2 The embodiment is illustrated using only the first information field as an example. Figure 2 Based on the embodiments shown, Figure 6 A flowchart illustrating a method for data transmission according to an exemplary embodiment of this application is shown. See also Figure 6 If the first information field includes a new data indication field, then step 230 is replaced by step 630:

[0129] Step 630: The terminal device determines, based on the new data indication information carried in the new data indication field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers using the DCI.

[0130] In this embodiment, the new data indication field indicates the data transmission status, and the terminal device determines whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the data transmission status carried by the new data indication field.

[0131] The data transmission status includes new data transmission status and retransmission data status.

[0132] In some embodiments, the new data indication information carried by the new data indication field includes first new data indication information and second new data indication information.

[0133] The first new data indication information is used to indicate the status of newly transmitted data, and the second new data indication information is used to indicate the status of retransmitted data. Alternatively, the first new data indication information is used to indicate the status of retransmitted data, and the second new data indication information is used to indicate the status of newly transmitted data. The carrier corresponding to the first new data indication information is the first carrier, and the carrier corresponding to the second new data indication information is the second carrier among multiple carriers, and the first carrier and the second carrier are different.

[0134] In this case, determining whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers by DCI includes any of the following:

[0135] (1) When the new data indication information carried in the new data indication field is the first new data indication information, DCI schedules the data transmission on the first carrier among multiple carriers.

[0136] In some embodiments, the first carrier corresponding to the data transmission state indicated by the first new data indication information is the carrier with the largest index identifier. Alternatively, the first carrier corresponding to the data transmission state indicated by the first new data indication information is the carrier with the smallest index identifier.

[0137] (2) When the new data indication information carried in the new data indication field is the second new data indication information, DCI schedules the data transmission on the second carrier among multiple carriers.

[0138] In some embodiments, the second carrier corresponding to the second new data indication information is the carrier with the largest index identifier. Alternatively, the second carrier corresponding to the second new data indication information is the carrier with the smallest index identifier.

[0139] In some embodiments, the first new data indication information or the second new data indication information in the DCI is invalid information. In this case, one or more carriers for data transmission scheduled by the DCI are carriers corresponding to valid new data indication information, including any of the following situations:

[0140] (1) When the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules the data transmission on the second carrier.

[0141] (2) When the second new data indication information is invalid and the first new data indication information is valid, the DCI schedules the data transmission on the first carrier.

[0142] The invalidity of the first or second new data indication information is indicated by a reference value. For example, the reference value may be 00, 11, or other values, which is not limited in the embodiments of this application.

[0143] For example, if all the first new data indications are 0, it means the first new data indication is invalid; if not all of the first new data indications are 0, it means the first new data indication is valid. Similarly, if all the second new data indications are 0, it means the second new data indication is invalid; if not all of the second new data indications are 0, it means the second new data indication is valid.

[0144] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

[0145] The new data indication information included in the DCI is used to indicate multiple data transmission states. The terminal device can determine the corresponding carrier based on each of the multiple data transmission states, and thus determine the multiple carriers scheduled by the DCI.

[0146] For example, if the new data indication information includes a first new data indication information and a second new data indication information, then the terminal device will schedule the carrier corresponding to the data transmission status indicated by the first new data indication information and the second new data indication information, respectively.

[0147] The method provided in this application determines whether the data transmission on multiple carriers or the data transmission on the first carrier among multiple carriers is scheduled by DCI based on the new data indication field. Regardless of the format of DCI, the method can determine whether the data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the new data information field. This expands the method for determining the data transmission on the carrier scheduled by DCI and improves the accuracy of determining the carrier for DCI-scheduled data transmission.

[0148] Figure 2 The embodiment is illustrated using only the first information field as an example. Figure 2 Based on the embodiments shown, Figure 7 A flowchart illustrating a method for data transmission according to an exemplary embodiment of this application is shown. See also Figure 7If the first information field includes a modulation and coding scheme indication field, then step 230 is replaced by step 730:

[0149] Step 730: The terminal device determines whether to schedule data transmission on multiple carriers or schedule data transmission on the first carrier among multiple carriers based on the modulation indication information carried in the modulation coding scheme indication field.

[0150] In this embodiment, the modulation and coding scheme indication field indicates the modulation and coding scheme. The terminal device determines the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers based on the modulation and coding scheme corresponding to the modulation and coding scheme indication field.

[0151] In some embodiments, the modulation and coding scheme indication information carried in the modulation and coding scheme indication field includes first modulation indication information and second modulation indication information. The carrier corresponding to the first modulation indication information is a first carrier, and the carrier corresponding to the second modulation indication information is a second carrier among multiple carriers. The first carrier and the second carrier are different.

[0152] The first modulation indication information is used to indicate the first modulation coding scheme, and the second modulation indication information is used to indicate the second modulation coding scheme.

[0153] In this case, determining whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers by DCI includes any of the following:

[0154] (1) When the modulation indication information carried in the modulation coding scheme indication field is the first modulation indication information, the DCI schedules the data transmission on the first carrier among multiple carriers.

[0155] In some embodiments, the first carrier corresponding to the modulation and coding scheme indicated by the first modulation indication information is the carrier with the largest index identifier. Alternatively, the first carrier corresponding to the modulation and coding scheme indicated by the first modulation indication information is the carrier with the smallest index identifier.

[0156] (2) When the modulation indication information carried in the modulation coding scheme indication field is the second modulation indication information, the DCI schedules the data transmission on the second carrier among multiple carriers.

[0157] In some embodiments, the second carrier corresponding to the modulation and coding scheme indicated by the second modulation indication information is the carrier with the largest index identifier. Alternatively, the second carrier corresponding to the modulation and coding scheme indicated by the second modulation indication information is the carrier with the smallest index identifier.

[0158] In some embodiments, the first modulation indication information or the second modulation indication information in the DCI is invalid information. In this case, the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among multiple carriers, including any of the following situations:

[0159] (1) When the first modulation indication information is invalid and the second modulation indication information is valid, the DCI schedules the data transmission on the second carrier.

[0160] The invalidity of the first modulation indication information or the second modulation indication information is indicated by a reference value. For example, the reference value is 00, 11 or other values, which is not limited in the embodiments of this application.

[0161] For example, if all the first modulation indication information values ​​are 0, it indicates that the first modulation indication information is invalid; if not all of the first modulation indication information values ​​are 0, it indicates that the first modulation indication information is valid. Similarly, if all the second modulation indication information values ​​are 0, it indicates that the second modulation indication information is invalid; if not all of the second modulation indication information values ​​are 0, it indicates that the second modulation indication information is valid.

[0162] (2) When the second modulation indication information is invalid and the first modulation indication information is valid, the DCI schedules the data transmission on the first carrier.

[0163] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to modulation and coding schemes indicated by multiple modulation indication information respectively.

[0164] The modulation indication information included in the DCI is used to indicate multiple modulation and coding schemes. The terminal device can determine the corresponding carrier based on each of the multiple modulation and coding schemes, and thus determine the multiple carriers scheduled by the DCI.

[0165] The method provided in this application determines whether the data transmission on multiple carriers or the data transmission on the first carrier among multiple carriers is scheduled by the modulation and coding scheme indication field. Regardless of the format of the DCI, the method can determine whether the data transmission on multiple carriers or the first carrier among multiple carriers is scheduled based on the modulation and coding scheme information field. This expands the method for determining the data transmission on the carrier scheduled by the DCI and improves the accuracy of determining the carrier for DCI data transmission.

[0166] Figure 8 A block diagram of an apparatus for data transmission provided in an exemplary embodiment of this application is shown. The apparatus is disposed in a terminal device and includes:

[0167] Receiver module 801 is used to receive DCI, which includes a first information field;

[0168] The determination module 802 is used to determine, based on the information carried in the first information field, the data transmission on multiple carriers scheduled by the DCI or the data transmission on the first carrier among multiple carriers.

[0169] In some embodiments, the first information field includes at least one of the following:

[0170] Back format indicator field;

[0171] Frequency domain resource indicator field;

[0172] Time-domain resource indicator field;

[0173] Carrier indication field;

[0174] Modulation coding scheme indicator field;

[0175] Physical uplink control channel (PUCCH) feedback timing indication field;

[0176] PUCCH resource indicator field; and,

[0177] New data indication field.

[0178] In some embodiments, the first information field includes a fallback format indication field, and the determining module 802 is configured to determine, based on the fallback format indication field, whether to schedule data transmission on multiple carriers or to schedule data transmission on a first carrier among multiple carriers in the DCI scheduling.

[0179] In some embodiments, when the fallback format indicator field takes the value of a first value, the DCI schedules data transmission on a first carrier among multiple carriers, where the first carrier is the carrier with the smallest index identifier among the multiple carriers, or, the first carrier is the carrier with the largest index identifier among the multiple carriers; or...

[0180] When the fallback format indicator field takes the second value, DCI schedules data transmission on multiple carriers.

[0181] In some embodiments, the rollback format indication field includes 1 bit, or the rollback format indication field includes 2 bits.

[0182] In some embodiments, the first information field includes a resource indication field, and the determining module 802 is used to determine, based on the resource indication information carried in the resource indication field, the data transmission on multiple carriers scheduled by the DCI or the data transmission on the first carrier among multiple carriers.

[0183] In some embodiments, the resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is a first carrier, and the carrier corresponding to the second resource indication information is a second carrier among multiple carriers. The first carrier and the second carrier are different.

[0184] In some embodiments, if the first resource indication information is invalid and the second resource indication information is valid, DCI schedules data transmission on the second carrier; or,

[0185] When the second resource indication information is invalid and the first resource indication information is valid, DCI schedules data transmission on the first carrier.

[0186] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

[0187] In some embodiments, the resource indication field is a frequency domain resource indication field or a time domain resource indication field.

[0188] In some embodiments, the first information field includes a carrier indication field, and the determining module is configured to:

[0189] When the carrier indication field indicates multiple carriers, the DCI determines the data transmission on multiple carriers; or,

[0190] If the carrier indicated by the carrier indication field is the first carrier, determine the data transmission on the first carrier for DCI scheduling.

[0191] In some embodiments, the first information field includes a new data indication field. The determining module is configured to determine, based on the new data indication information carried in the new data indication field, the data transmission on the DCI scheduling multiple carriers or the data transmission on the first carrier among the multiple carriers.

[0192] In some embodiments, the new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is a first carrier, and the carrier corresponding to the second new data indication information is a second carrier among a plurality of carriers. The first carrier and the second carrier are different.

[0193] In some embodiments, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; or,

[0194] If the second new data indication information is invalid and the first new data indication information is valid, DCI schedules data transmission on the first carrier.

[0195] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

[0196] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0197] Figure 9 A block diagram of an apparatus for data transmission provided in an exemplary embodiment of this application is shown. The apparatus is disposed in a network device and includes:

[0198] Transmitting module 901 is used to transmit DCI, which includes a first information field;

[0199] The information carried in the first information field is used to instruct the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among multiple carriers.

[0200] In some embodiments, the first information field includes at least one of the following:

[0201] Back format indicator field;

[0202] Frequency domain resource indicator field;

[0203] Time-domain resource indicator field;

[0204] Carrier indication field;

[0205] Modulation coding scheme indicator field;

[0206] PUCCH feedback timing indicator field;

[0207] PUCCH resource indicator field; and,

[0208] New data indication field.

[0209] In some embodiments, the first information field includes a fallback format indication field, which is used to indicate whether the DCI schedules data transmission on multiple carriers or schedules data transmission on a first carrier among multiple carriers.

[0210] In some embodiments, when the fallback format indicator field takes the value of a first value, the DCI schedules data transmission on a first carrier among multiple carriers, where the first carrier is the carrier with the smallest index identifier among the multiple carriers, or, the first carrier is the carrier with the largest index identifier among the multiple carriers; or...

[0211] When the fallback format indicator field takes the second value, DCI schedules data transmission on multiple carriers.

[0212] In some embodiments, the rollback format indication field includes 1 bit, or the rollback format indication field includes 2 bits.

[0213] In some embodiments, the first information field includes a resource indication field, the resource indication field carrying resource indication information for instructing DCI to schedule data transmission on multiple carriers or to schedule data transmission on a first carrier among multiple carriers.

[0214] In some embodiments, the resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is a first carrier, and the carrier corresponding to the second resource indication information is a second carrier among multiple carriers. The first carrier and the second carrier are different.

[0215] In some embodiments, if the first resource indication information is invalid and the second resource indication information is valid, DCI schedules data transmission on the second carrier; or,

[0216] When the second resource indication information is invalid and the first resource indication information is valid, DCI schedules data transmission on the first carrier.

[0217] In some embodiments, when DCI schedules multiple carriers, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

[0218] In some embodiments, the resource indication field is a frequency domain resource indication field or a time domain resource indication field.

[0219] In some embodiments, the first information field includes a carrier indication field;

[0220] When the carrier indication field indicates multiple carriers, DCI schedules data transmission on multiple carriers; or,

[0221] When the carrier indicated by the carrier indication field is the first carrier, DCI schedules the data transmission on the first carrier.

[0222] In some embodiments, the first information field includes a new data indication field, which carries new data indication information for instructing the DCI to schedule data transmission on multiple carriers or to schedule data transmission on a first carrier among multiple carriers.

[0223] In some embodiments, the new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is a first carrier, and the carrier corresponding to the second new data indication information is a second carrier among a plurality of carriers. The first carrier and the second carrier are different.

[0224] In some embodiments, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; or,

[0225] If the second new data indication information is invalid and the first new data indication information is valid, DCI schedules data transmission on the first carrier.

[0226] In some embodiments, DCI schedules data transmission on multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

[0227] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules when implementing its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0228] Figure 10 The diagram shows a schematic representation of a communication device provided in an exemplary embodiment of this application. The communication device includes a processor 1001, a receiver 1002, a transmitter 1003, a memory 1004, and a bus 1005.

[0229] The processor 1001 includes one or more processing cores. The processor 1001 executes various functional applications and information processing by running software programs and modules.

[0230] The receiver 1002 and the transmitter 1003 can be implemented as a communication component, which can be a communication chip.

[0231] The memory 1004 is connected to the processor 1001 via the bus 1005.

[0232] The memory 1004 can be used to store at least one program code, and the processor 1001 is used to execute the at least one program code to implement the various steps in the above method embodiments.

[0233] Furthermore, the communication equipment can be a terminal device or a network device. The memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic storage, flash memory, and programmable read-only memory (PROM).

[0234] In an exemplary embodiment, a computer-readable storage medium is also provided, wherein executable program code is stored therein, the executable program code being loaded and executed by a processor to implement the method for data transmission performed by a communication device provided in the various method embodiments described above.

[0235] In an exemplary embodiment, a chip is provided, the chip including programmable logic circuitry and / or program instructions, which, when the chip is run on a terminal device or network device, are used to implement the methods for data transmission as provided in the various method embodiments.

[0236] In an exemplary embodiment, a computer program product is provided, which, when executed by a processor of a terminal device or a network device, is used to implement the methods for data transmission provided in the various method embodiments described above.

[0237] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0238] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for data transmission, characterized in that, Applied to a terminal device, the method includes: Receive downlink control information (DCI), wherein the DCI includes a first information field; Based on the information carried by the first information field, it is determined whether the DCI schedules data transmission on multiple carriers or on the first carrier among the multiple carriers, so that when the received DCI is in any format, the first information field can be used to determine whether to schedule data transmission on multiple carriers or on the first carrier among the multiple carriers. The first information field includes the new data indication field; the new data indication field is used to indicate the data transmission status, which includes new data transmission status or retransmission data status. The step of determining, based on the information carried in the first information field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, includes: Based on the new data indication information carried by the new data indication field, it is determined whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers; The new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is the first carrier, and the carrier corresponding to the second new data indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different. Wherein, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; and, If the second new data indication information is invalid and the first new data indication information is valid, the DCI schedules the data transmission on the first carrier.

2. The method according to claim 1, characterized in that, The first information field also includes at least one of the following: Back format indicator field; Frequency domain resource indicator field; Time-domain resource indicator field; Carrier indication field; Modulation coding scheme indicator field; PUCCH feedback timing indication field; and PUCCH resource indicator field.

3. The method according to claim 2, characterized in that, The first information field includes the rollback format indication field; The step of determining, based on the information carried in the first information field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, includes: Based on the fallback format indication field, it is determined whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

4. The method according to claim 3, characterized in that, When the value of the fallback format indication field is a first value, the DCI schedules data transmission on the first carrier among the plurality of carriers, where the first carrier is the carrier with the smallest index identifier among the plurality of carriers, or, the first carrier is the carrier with the largest index identifier among the plurality of carriers; or... When the value of the fallback format indication field is the second value, the DCI schedules data transmission on the plurality of carriers.

5. The method according to claim 4, characterized in that, The fallback format indicator field includes 1 bit, or the fallback format indicator field includes 2 bits.

6. The method according to claim 2, characterized in that, The first information field includes a resource indication field; The step of determining, based on the information carried in the first information field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, includes: Based on the resource indication information carried by the resource indication field, the DCI determines whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers.

7. The method according to claim 6, characterized in that, The resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is the first carrier, and the carrier corresponding to the second resource indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different.

8. The method according to claim 7, characterized in that, If the first resource indication information is invalid and the second resource indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second resource indication information is invalid and the first resource indication information is valid, the DCI schedules data transmission on the first carrier.

9. The method according to claim 6, characterized in that, In the case where the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

10. The method according to any one of claims 6 to 9, characterized in that, The resource indication field is either the frequency domain resource indication field or the time domain resource indication field.

11. The method according to claim 2, characterized in that, The first information field includes the carrier indication field; The step of determining, based on the information carried in the first information field, whether to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, includes: If the carrier indicated by the carrier indication field is multiple carriers, the DCI is determined to schedule data transmission on the multiple carriers; or, If the carrier indicated by the carrier indication field is the first carrier, the DCI is determined to schedule data transmission on the first carrier.

12. The method according to claim 1, characterized in that, When the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

13. A method for data transmission, characterized in that, Applied to network devices, the method includes: Send a DCI, wherein the DCI includes a first information field; The information carried in the first information field is used to instruct the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, so that the terminal device can determine to schedule data transmission on multiple carriers or the first carrier among the multiple carriers based on the first information field, regardless of the format of the transmitted DCI. The first information field includes the new data indication field; the new data indication field is used to indicate the data transmission status, which includes new data transmission status or retransmission data status; the new data indication information carried by the new data indication field is used to indicate the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers. The new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is the first carrier, and the carrier corresponding to the second new data indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different. Wherein, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second new data indication information is invalid and the first new data indication information is valid, the DCI schedules the data transmission on the first carrier.

14. The method according to claim 13, characterized in that, The first information field also includes at least one of the following: Back format indicator field; Frequency domain resource indicator field; Time-domain resource indicator field; Carrier indication field; Modulation coding scheme indicator field; PUCCH feedback timing indication field; and PUCCH resource indicator field.

15. The method according to claim 14, characterized in that, The first information field includes the fallback format indication field; the fallback format indication field is used to indicate that the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

16. The method according to claim 15, characterized in that, When the value of the fallback format indication field is a first value, the DCI schedules data transmission on the first carrier among the plurality of carriers, where the first carrier is the carrier with the smallest index identifier among the plurality of carriers, or, the first carrier is the carrier with the largest index identifier among the plurality of carriers; or... When the value of the fallback format indication field is the second value, the DCI schedules data transmission on the plurality of carriers.

17. The method according to claim 16, characterized in that, The fallback format indicator field includes 1 bit, or the fallback format indicator field includes 2 bits.

18. The method according to claim 14, characterized in that, The first information field includes a resource indication field, and the resource indication field carries resource indication information used to indicate the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers.

19. The method according to claim 18, characterized in that, The resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is the first carrier, and the carrier corresponding to the second resource indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different.

20. The method according to claim 19, characterized in that, If the first resource indication information is invalid and the second resource indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second resource indication information is invalid and the first resource indication information is valid, the DCI schedules data transmission on the first carrier.

21. The method according to claim 18, characterized in that, In the case where the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

22. The method according to any one of claims 18 to 21, characterized in that, The resource indication field is either the frequency domain resource indication field or the time domain resource indication field.

23. The method according to claim 14, characterized in that, The first information field includes the carrier indication field; When the carrier indicated by the carrier indication field is multiple carriers, the DCI schedules data transmission on the multiple carriers; or, When the carrier indicated by the carrier indication field is the first carrier, the DCI schedules the data transmission on the first carrier.

24. The method according to claim 13, characterized in that, When the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

25. An apparatus for data transmission, characterized in that, The device, installed in a terminal device, includes: A receiving module is configured to receive a DCI, wherein the DCI includes a first information field; The determining module is configured to determine, based on the information carried in the first information field, the data transmission on multiple carriers or the data transmission on the first carrier among the multiple carriers scheduled by the DCI, so that when the received DCI is in any format, the data transmission on multiple carriers or the data transmission on the first carrier among the multiple carriers can be determined based on the first information field. Wherein, the first information field includes the new data indication field; the new data indication field is used to indicate the data transmission status, the data transmission status includes new data transmission status or retransmission data status; the determining module is used to determine, based on the new data indication information carried by the new data indication field, the data transmission on the multiple carriers scheduled by the DCI or the data transmission on the first carrier among the multiple carriers. The new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is the first carrier, and the carrier corresponding to the second new data indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different. Wherein, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; and, If the second new data indication information is invalid and the first new data indication information is valid, the DCI schedules the data transmission on the first carrier.

26. The apparatus according to claim 25, characterized in that, The first information field also includes at least one of the following: Back format indicator field; Frequency domain resource indicator field; Time-domain resource indicator field; Carrier indication field; Modulation coding scheme indicator field; PUCCH feedback timing indication field; and PUCCH resource indicator field.

27. The apparatus according to claim 26, characterized in that, The first information field includes the fallback format indication field. The determining module is used to determine, based on the fallback format indication field, whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

28. The apparatus according to claim 27, characterized in that, When the value of the fallback format indication field is a first value, the DCI schedules data transmission on the first carrier among the plurality of carriers, where the first carrier is the carrier with the smallest index identifier among the plurality of carriers, or, the first carrier is the carrier with the largest index identifier among the plurality of carriers; or... When the value of the fallback format indication field is the second value, the DCI schedules data transmission on the plurality of carriers.

29. The apparatus according to claim 28, characterized in that, The fallback format indicator field includes 1 bit, or the fallback format indicator field includes 2 bits.

30. The apparatus according to claim 26, characterized in that, The first information field includes a resource indication field. The determining module is used to determine, based on the resource indication information carried in the resource indication field, whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

31. The apparatus according to claim 30, characterized in that, The resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is the first carrier, and the carrier corresponding to the second resource indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different.

32. The apparatus according to claim 31, characterized in that, If the first resource indication information is invalid and the second resource indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second resource indication information is invalid and the first resource indication information is valid, the DCI schedules data transmission on the first carrier.

33. The apparatus according to claim 30, characterized in that, In the case where the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

34. The apparatus according to any one of claims 30 to 33, characterized in that, The resource indication field is either the frequency domain resource indication field or the time domain resource indication field.

35. The apparatus according to claim 26, characterized in that, The first information field includes the carrier indication field; The determining module is used for: If the carrier indicated by the carrier indication field is multiple carriers, the DCI is determined to schedule data transmission on the multiple carriers; or, If the carrier indicated by the carrier indication field is the first carrier, the DCI is determined to schedule data transmission on the first carrier.

36. The apparatus according to claim 25, characterized in that, When the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

37. An apparatus for data transmission, characterized in that, The device, installed in a network device, includes: A sending module is used to send a DCI, wherein the DCI includes a first information field; The information carried in the first information field is used to instruct the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers, so that the terminal device can determine to schedule data transmission on multiple carriers or the first carrier among the multiple carriers based on the first information field, regardless of the format of the transmitted DCI. The first information field includes the new data indication field; the new data indication field is used to indicate the data transmission status, which includes new data transmission status or retransmission data status; the new data indication information carried by the new data indication field is used to indicate the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers. The new data indication field carries first new data indication information and second new data indication information. The carrier corresponding to the first new data indication information is the first carrier, and the carrier corresponding to the second new data indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different. Wherein, if the first new data indication information is invalid and the second new data indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second new data indication information is invalid and the first new data indication information is valid, the DCI schedules the data transmission on the first carrier.

38. The apparatus according to claim 37, characterized in that, The first information field also includes at least one of the following: Back format indicator field; Frequency domain resource indicator field; Time-domain resource indicator field; Carrier indication field; Modulation coding scheme indicator field; PUCCH feedback timing indication field; and PUCCH resource indicator field.

39. The apparatus according to claim 38, characterized in that, The first information field includes the fallback format indication field, which is used to indicate whether the DCI schedules data transmission on multiple carriers or schedules data transmission on the first carrier among the multiple carriers.

40. The apparatus according to claim 39, characterized in that, When the value of the fallback format indication field is a first value, the DCI schedules data transmission on the first carrier among the plurality of carriers, where the first carrier is the carrier with the smallest index identifier among the plurality of carriers, or, the first carrier is the carrier with the largest index identifier among the plurality of carriers; or... When the value of the fallback format indication field is the second value, the DCI schedules data transmission on the plurality of carriers.

41. The apparatus according to claim 40, characterized in that, The fallback format indicator field includes 1 bit, or the fallback format indicator field includes 2 bits.

42. The apparatus according to claim 38, characterized in that, The first information field includes a resource indication field, and the resource indication field carries resource indication information used to indicate the DCI to schedule data transmission on multiple carriers or to schedule data transmission on the first carrier among the multiple carriers.

43. The apparatus according to claim 42, characterized in that, The resource indication field carries first resource indication information and second resource indication information. The carrier corresponding to the first resource indication information is the first carrier, and the carrier corresponding to the second resource indication information is the second carrier among the plurality of carriers. The first carrier and the second carrier are different.

44. The apparatus according to claim 43, characterized in that, If the first resource indication information is invalid and the second resource indication information is valid, the DCI schedules data transmission on the second carrier; or, If the second resource indication information is invalid and the first resource indication information is valid, the DCI schedules data transmission on the first carrier.

45. The apparatus according to claim 42, characterized in that, In the case where the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to resources indicated by multiple resource indication information respectively.

46. ​​The apparatus according to any one of claims 42 to 45, characterized in that, The resource indication field is either the frequency domain resource indication field or the time domain resource indication field.

47. The apparatus according to claim 38, characterized in that, The first information field includes the carrier indication field; When the carrier indicated by the carrier indication field is multiple carriers, the DCI schedules data transmission on the multiple carriers; or, When the carrier indicated by the carrier indication field is the first carrier, the DCI schedules the data transmission on the first carrier.

48. The apparatus according to claim 37, characterized in that, When the DCI schedules multiple carriers, the DCI schedules data transmission on the multiple carriers, where the multiple carriers are carriers corresponding to data transmission states indicated by multiple new data indication information.

49. A terminal device, characterized in that, The terminal device includes: processor; A transceiver connected to the processor; Memory for storing the executable program code of the processor; The processor is configured to load and execute the executable program code to implement the method for data transmission as described in any one of claims 1-12.

50. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; Memory for storing the executable program code of the processor; The processor is configured to load and execute the executable program code to implement the method for data transmission as described in any one of claims 13-24.

51. A computer-readable storage medium, characterized in that, The readable storage medium stores executable program code, which is loaded and executed by the processor to implement the method for data transmission as described in any one of claims 1 to 24.

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