A data transmission method, device, chip and electronic equipment

Abstract

Embodiments of the present application provide a data transmission method, device, chip and electronic equipment. The method comprises: receiving downlink control information, in the case of cross-carrier transmission of data scheduled by the downlink control information, determining a target carrier and a total number of repeated transmissions of the data according to a first indication field in the downlink control information, and transmitting the data on the source carrier and the target carrier according to the total number of repeated transmissions. The source carrier is the carrier where the downlink control information is located, the total number of repeated transmissions of the data belongs to a first set, the first set includes at least one value of the total number of repeated transmissions, and the at least one value of the total number of repeated transmissions is pre-configured or network-configured. According to the method of the embodiments of the present application, carrier switching can be realized in the current scheduled data transmission, thereby realizing cross-carrier transmission.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to a data transmission method and device, a chip and an electronic device. BACKGROUND

[0002] Non terrestrial networks (NTN), namely satellite networks. In the NTN scenario, one cell includes one or more beams, and due to the rapid movement of the satellite, the terminal needs to frequently perform beam / carrier switching to ensure the connection with the network. Therefore, how to realize cross-carrier transmission without increasing the bit overhead of DCI is a problem to be solved at present. SUMMARY

[0003] In view of the problem of how to realize cross-carrier transmission in the prior art, the present application provides a data transmission method and device, a chip and an electronic device, and further provides a computer readable storage medium.

[0004] The embodiment of the present application adopts the following technical scheme:

[0005] In a first aspect, the present application provides a data transmission method, comprising:

[0006] receiving downlink control information;

[0007] In the case of cross-carrier transmission of data scheduled by the downlink control information, determining the target carrier and the total number of repeated transmissions of the data according to a first indication field in the downlink control information, the total number of repeated transmissions belonging to a first set, the first set including at least one value of the total number of repeated transmissions, the at least one value of the total number of repeated transmissions being pre-configured or network configured;

[0008] transmitting the data on the source carrier and the target carrier according to the total number of repeated transmissions, the source carrier being the carrier where the downlink control information is located.

[0009] In an implementation manner of the first aspect, the target carrier is determined according to the first indication field in the downlink control information, comprising:

[0010] determining the target carrier according to a first part of bits in the first indication field in the downlink control information.

[0011] In an implementation manner of the first aspect, the target carrier is determined according to the first part of bits in the first indication field in the downlink control information, comprising:

[0012] determining the target carrier as the carrier corresponding to the value of the first part of bits according to a second correspondence relationship, the second correspondence relationship being a correspondence relationship between different values of the first part of bits and carriers.

[0013] In an implementation form of the first aspect, the method further comprises:

[0014] receiving a second correspondence configured by the network;

[0015] or,

[0016] receiving a second set configured by the network, determining the second correspondence according to the second set, the second set comprising one or more carriers.

[0017] In an implementation form of the first aspect, determining the total number of repetitions of the data according to the first indication field in the downlink control information comprises:

[0018] determining the total number of repetitions of the data according to a second part of bits in the first indication field in the downlink control information.

[0019] In an implementation form of the first aspect, determining the total number of repetitions of the data according to a second part of bits in the first indication field in the downlink control information comprises:

[0020] determining the total number of repetitions of the data according to the first correspondence, the first correspondence being a correspondence between different values of the second part of bits and values of the total number of repetitions in the first set.

[0021] In an implementation form of the first aspect, the method further comprises:

[0022] receiving a first correspondence configured by the network;

[0023] or,

[0024] receiving a first set configured by the network, determining the first correspondence according to the first set.

[0025] In an implementation form of the first aspect, the method further comprises:

[0026] receiving bit configuration information, the bit configuration information being used to configure one or more of the following: a number of the first part of bits, a position of the first part of bits, a number of the second part of bits, a position of the second part of bits.

[0027] In an implementation form of the first aspect, the bit configuration information is used to configure the position of the first part of bits and / or the position of the second part of bits;

[0028] The method further comprises:

[0029] determining the number of the first part of bits according to a number of candidate carriers of the target carrier, and / or determining the number of the second part of bits according to a number of candidate values of the total number of repetitions of the data.

[0030] In an implementation form of the first aspect, the second part of bits is the remaining bits in the first indication field except the first part of bits.

[0031] In a case that the downlink control information schedules uplink transmission, the first part of bits is two bits at a front or a rear of the first indication field, or the first part of bits is one bit at a front or a rear of the first indication field.

[0032] In a case that the downlink control information schedules downlink transmission, the first part of bits is two bits at a front or a rear of the first indication field, or the first part of bits is one bit at a front or a rear of the first indication field, or the first part of bits is three bits at a front or a rear of the first indication field.

[0033] In an implementation form of the first aspect, the downlink control information comprises repetition number allocation indication information, and the data is transmitted on the source carrier and the target carrier according to a total repetition number, comprising:

[0034] The repetition number on the source carrier and the target carrier is determined according to the total repetition number and the repetition number allocation indication information.

[0035] The data is transmitted on the source carrier and the target carrier according to the repetition number on the source carrier and the target carrier.

[0036] In an implementation form of the first aspect, in a case that the repetition number on the target carrier is not zero, the data is transmitted across carriers.

[0037] In an implementation form of the first aspect, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0038] In an implementation form of the first aspect, the repetition number allocation indication information is used to indicate a ratio of the repetition number on the source carrier or the target carrier to a total repetition number of the data, and the repetition number on the source carrier and the target carrier is determined according to the total repetition number and the repetition number allocation indication information, comprising:

[0039] The repetition number on the source carrier and the target carrier is determined according to the total repetition number of the data and the ratio indicated by the repetition number allocation indication information.

[0040] In an implementation form of the first aspect, the method further comprises:

[0041] According to the third correspondence relationship, a proportion value corresponding to a value of the repetition transmission number allocation indication information is determined as a proportion of the repetition transmission number on the source carrier or the target carrier to a total repetition transmission number of the data, and the third correspondence relationship is a correspondence relationship between different values of the repetition transmission number allocation indication information and the proportion value.

[0042] In an implementation form of the first aspect, the method further comprises:

[0043] receiving a third correspondence relationship configured by the network;

[0044] Alternatively,

[0045] receiving a third set configured by the network, determining the third correspondence relationship according to the third set, and the third set comprising one or more proportion values.

[0046] In an implementation form of the first aspect, the repetition transmission number allocation indication information is used to indicate the repetition transmission number on the source carrier or the target carrier.

[0047] determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number and the repetition transmission number allocation indication information, comprising:

[0048] determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number of the data and the repetition transmission number indicated by the repetition transmission number allocation indication information.

[0049] In an implementation form of the first aspect, the method further comprises:

[0050] determining the repetition transmission number on the source carrier or the target carrier according to a value of the repetition transmission number allocation indication information according to a fourth correspondence relationship, and the fourth correspondence relationship being a correspondence relationship between different values of the repetition transmission number allocation indication information and the repetition transmission number.

[0051] In an implementation form of the first aspect, the method further comprises:

[0052] receiving a fourth correspondence relationship configured by the network;

[0053] Alternatively,

[0054] receiving a fourth set configured by the network, determining the fourth correspondence relationship according to the fourth set, and the fourth set comprising one or more values of the repetition transmission number.

[0055] The second aspect, the application further provides a data scheduling method, comprising:

[0056] transmitting the downlink control information, wherein in a case that data scheduled by the downlink control information is transmitted across carriers, a first indication field in the downlink control information is used to indicate a target carrier and a total number of repetitions of the data, the total number of repetitions of the data belonging to a first set, the first set including at least one value of the total number of repetitions, the at least one value of the total number of repetitions being pre-configured or network configured.

[0057] In an implementation form of the second aspect, a first part of bits in the first indication field in the downlink control information is used to indicate the target carrier.

[0058] In an implementation form of the second aspect, a carrier corresponding to a value of the first part of bits is the target carrier, and a correspondence between different values of the first part of bits and carriers is a second correspondence.

[0059] In an implementation form of the second aspect, the method further includes:

[0060] transmitting the second correspondence;

[0061] or,

[0062] transmitting a second set, the second set being used to determine the second correspondence, the second set containing one or more carriers.

[0063] In an implementation form of the second aspect, a second part of bits in the first indication field in the downlink control information is used to indicate the total number of repetitions of the data.

[0064] In an implementation form of the second aspect, a total number of repetitions corresponding to a value of the second part of bits is the total number of repetitions of the data, and a correspondence between different values of the second part of bits and values of the total number of repetitions in the first set is a first correspondence.

[0065] In an implementation form of the second aspect, the method further includes:

[0066] transmitting the first correspondence;

[0067] or,

[0068] transmitting a first set, the first set being used to determine the first correspondence.

[0069] In an implementation form of the second aspect, the method further includes:

[0070] transmitting bit configuration information, the bit configuration information being used to configure one or more of the following: a number of the first part of bits, a position of the first part of bits, a number of the second part of bits, a position of the second part of bits.

[0071] In an implementation form of the second aspect, the second part of bits is the remaining bits in the first indication field except the first part of bits.

[0072] In a case that the downlink control information schedules uplink transmission, the first part of bits is two bits at a front or a rear of the first indication field, or the first part of bits is one bit at a front or a rear of the first indication field.

[0073] In a case that the downlink control information schedules downlink transmission, the first part of bits is two bits at a front or a rear of the first indication field, or the first part of bits is one bit at a front or a rear of the first indication field, or the first part of bits is three bits at a front or a rear of the first indication field.

[0074] In an implementation form of the second aspect, the downlink control information comprises repetition number allocation indication information, the repetition number allocation indication information being used to determine the repetition number on the source carrier and the target carrier.

[0075] In an implementation form of the second aspect, in a case that the repetition number on the target carrier is not zero, the data is transmitted across carriers.

[0076] In an implementation form of the second aspect, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0077] In an implementation form of the second aspect, the repetition number allocation indication information is used to indicate the repetition number on the source carrier or the target carrier.

[0078] In an implementation form of the second aspect, a repetition number corresponding to a value of the repetition number allocation indication information is the repetition number on the source carrier or the target carrier, and a correspondence between different values of the repetition number allocation indication information and the repetition number is a fourth correspondence.

[0079] In an implementation form of the second aspect, the method further comprises:

[0080] sending the fourth correspondence;

[0081] or,

[0082] sending a fourth set, the fourth set being used to determine the fourth correspondence, the fourth set comprising one or more values of the repetition number.

[0083] In an implementation form of the second aspect, the repetition number allocation indication information is used to indicate a proportion of the repetition number on the source carrier or the target carrier to a total repetition number of the data.

[0084] In an implementation form of the second aspect, the ratio value corresponding to the value of the repetition transmission number allocation indication information is a ratio of the repetition transmission number on the source carrier or the target carrier to a total number of repetitions of the data, and the correspondence between different values of the repetition transmission number allocation indication information and the ratio value is a third correspondence.

[0085] In an implementation form of the second aspect, the method further comprises:

[0086] sending the third correspondence;

[0087] or,

[0088] sending a third set, the third set being used to determine the third correspondence, and the third set containing one or more ratio values.

[0089] In a third aspect, the present application further provides a data transmission method, comprising:

[0090] receiving a downlink control information;

[0091] in a case where the data scheduled by the downlink control information is cross-carrier transmitted, determining a target carrier according to a first indication field in the downlink control information;

[0092] receiving a total number of repetitions of the data configured by a network;

[0093] transmitting the data on a source carrier and the target carrier according to the total number of repetitions, the source carrier being a carrier where the downlink control information is located.

[0094] In an implementation form of the third aspect, the determining of the target carrier according to the first indication field in the downlink control information comprises:

[0095] determining, according to a second correspondence, a carrier corresponding to a value of the first indication field as the target carrier, the second correspondence being a correspondence between different values of the first indication field and carriers.

[0096] In an implementation form of the third aspect, the method further comprises:

[0097] receiving the second correspondence configured by the network;

[0098] or,

[0099] receiving a second set configured by the network, and determining the second correspondence according to the second set, the second set containing one or more carriers.

[0100] In an implementation form of the third aspect, the downlink control information comprises repetition number allocation indication information, and the transmitting the data on the source carrier and the target carrier according to the total repetition number comprises:

[0101] determining the repetition number on the source carrier and the target carrier according to the total repetition number and the repetition number allocation indication information;

[0102] transmitting the data on the source carrier and the target carrier according to the repetition number on the source carrier and the target carrier.

[0103] In an implementation form of the third aspect, the data is cross-carrier transmitted in a case that the repetition number on the target carrier is not zero.

[0104] In an implementation form of the third aspect, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0105] In an implementation form of the third aspect, the repetition number allocation indication information is used to indicate a proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data, and the determining the repetition number on the source carrier and the target carrier according to the total repetition number and the repetition number allocation indication information comprises:

[0106] determining the repetition number on the source carrier and the target carrier according to the total repetition number of the data and the proportion indicated by the repetition number allocation indication information.

[0107] In an implementation form of the third aspect, the method further comprises:

[0108] determining, according to a third correspondence relationship, a proportion value corresponding to a value of the repetition number allocation indication information as a proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data, the third correspondence relationship being a correspondence relationship between different values of the repetition number allocation indication information and proportion values.

[0109] In an implementation form of the third aspect, the method further comprises:

[0110] receiving the third correspondence relationship configured by a network;

[0111] or,

[0112] receiving a third set configured by a network, determining the third correspondence relationship according to the third set, the third set comprising one or more proportion values.

[0113] In an implementation form of the third aspect, the repetition transmission number allocation indication information is used for indicating the repetition transmission number on the source carrier or the target carrier.

[0114] The determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number and the repetition transmission number allocation indication information comprises:

[0115] The repetition transmission number on the source carrier and the target carrier is determined according to the total repetition transmission number of the data and the repetition transmission number indicated by the repetition transmission number allocation indication information.

[0116] In an implementation form of the third aspect, the method further comprises:

[0117] According to a fourth correspondence relationship between different values of the repetition transmission number allocation indication information and repetition transmission numbers, the repetition transmission number corresponding to the value of the repetition transmission number allocation indication information is determined as the repetition transmission number on the source carrier or the target carrier.

[0118] In an implementation form of the third aspect, the method further comprises:

[0119] The fourth correspondence relationship is received by network configuration.

[0120] Or,

[0121] A fourth set configured by network is received, and the fourth correspondence relationship is determined according to the fourth set, wherein the fourth set contains one or more values of the repetition transmission number.

[0122] In a fourth aspect, the application further provides a data scheduling method, comprising:

[0123] Sending downlink control information, wherein in the case of cross-carrier transmission of the data scheduled by the downlink control information, a first indication field in the downlink control information is used for indicating a target carrier.

[0124] The total repetition transmission number of the data is sent.

[0125] In an implementation form of the fourth aspect, the carrier corresponding to the value of the first indication field is the target carrier, and a correspondence relationship between different values of the first indication field and carriers is a second correspondence relationship.

[0126] In an implementation form of the fourth aspect, the method further comprises:

[0127] The second correspondence relationship is sent.

[0128] Or,

[0129] transmitting a second set, the second set being used to determine the second correspondence, the second set containing one or more carriers.

[0130] In an implementation form of the fourth aspect, the method further comprises:

[0131] transmitting the first correspondence;

[0132] or,

[0133] transmitting a first set, the first set being used to determine the first correspondence, the first set containing one or more values of a total number of repetitions of the data.

[0134] In an implementation form of the fourth aspect, the downlink control information contains repetition number allocation indication information, the repetition number allocation indication information being used to determine the repetition number on the source carrier and the target carrier.

[0135] In an implementation form of the fourth aspect, the data is cross-carrier transmitted in the case that the repetition number on the target carrier is not zero.

[0136] In an implementation form of the fourth aspect, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0137] In an implementation form of the fourth aspect, the repetition number allocation indication information is used to indicate the repetition number on the source carrier or the target carrier.

[0138] In an implementation form of the fourth aspect, a repetition number corresponding to a value of the repetition number allocation indication information is the repetition number on the source carrier or the target carrier, and a correspondence between different values of the repetition number allocation indication information and repetition numbers is a fourth correspondence.

[0139] In an implementation form of the fourth aspect, the method further comprises:

[0140] transmitting the fourth correspondence;

[0141] or,

[0142] transmitting a fourth set, the fourth set being used to determine the fourth correspondence, the fourth set containing one or more values of the repetition number.

[0143] In an implementation form of the fourth aspect, the repetition number allocation indication information is used to indicate a ratio of the repetition number on the source carrier or the target carrier to the total repetition number of the data.

[0144] In an implementation form of the fourth aspect, a ratio value corresponding to a value of the repetition number allocation indication information is a ratio of the repetition number on the source carrier or the target carrier to the total repetition number of the data, and a correspondence between different values of the repetition number allocation indication information and the ratio values is a third correspondence.

[0145] In an implementation form of the fourth aspect, the method further includes:

[0146] sending the third correspondence;

[0147] or,

[0148] sending a third set used to determine the third correspondence, the third set containing one or more ratio values.

[0149] In a fifth aspect, the present application provides a data transmission apparatus, the apparatus comprising: a module for performing the method provided in the first aspect. For example, comprising:

[0150] a transceiving module configured to receive a downlink control information;

[0151] a confirming module configured to, in a case that the data scheduled by the downlink control information is transmitted across carriers, determine a target carrier and a total repetition number of the data according to a first indication field of the downlink control information, the total repetition number of the data belonging to a first set, the first set including at least one value of the total repetition number, the at least one value of the total repetition number being pre-configured or network-configured;

[0152] the transceiving module is further configured to:

[0153] transmit the data on the source carrier and the target carrier according to the total repetition number, the source carrier being a carrier where the downlink control information is located.

[0154] In a sixth aspect, the present application provides a data scheduling apparatus, the apparatus comprising: a module for performing the method provided in the second aspect. For example, comprising:

[0155] The sending module is configured to send downlink control information, wherein in the case of cross-carrier transmission of data scheduled by the downlink control information, a first indication field in the downlink control information is used to indicate a target carrier and a total number of repeated transmissions of the data, the total number of repeated transmissions of the data belonging to a first set, the first set including at least one value of the total number of repeated transmissions, the at least one value of the total number of repeated transmissions being preconfigured or network configured.

[0156] The data scheduling apparatus can further include a processing module, and the sending module can perform corresponding actions under control of the processing module.

[0157] In a seventh aspect, the present application further provides a data transmission apparatus, including: a module for executing the method provided in the third aspect. For example, including:

[0158] The transceiving module is configured to receive downlink control information.

[0159] The confirming module is configured to, in the case of cross-carrier transmission of data scheduled by the downlink control information, determine a target carrier according to a first indication field in the downlink control information.

[0160] The transceiving module is further configured to receive a total number of repeated transmissions of the data that is network configured.

[0161] The transceiving module is further configured to transmit the data on the source carrier and the target carrier according to the total number of repeated transmissions, the source carrier being a carrier where the downlink control information is located.

[0162] In an eighth aspect, the present application further provides a data scheduling apparatus, including: a module for executing the method provided in the fourth aspect. For example, including:

[0163] The sending module is configured to send downlink control information, wherein in the case of cross-carrier transmission of data scheduled by the downlink control information, a first indication field in the downlink control information is used to indicate a target carrier.

[0164] The sending module is further configured to send a total number of repeated transmissions of the data.

[0165] The data scheduling apparatus can further include a processing module, and the sending module can perform corresponding actions under control of the processing module.

[0166] In a ninth aspect, the present application provides an electronic chip, including:

[0167] The processor is configured to execute computer program instructions stored on the memory, wherein when the computer program instructions are executed by the processor, the electronic chip is triggered to perform the method steps of the first aspect or the third aspect.

[0168] In a tenth aspect, the present application provides an electronic chip, comprising:

[0169] a processor configured to execute computer program instructions stored on the memory, wherein the computer program instructions, when executed by the processor, cause the electronic chip to perform the method steps of the second aspect or the fourth aspect.

[0170] In an eleventh aspect, the present application provides an electronic device, comprising a memory configured to store computer program instructions, a processor configured to execute the computer program instructions, and a communication device, wherein the computer program instructions, when executed by the processor, cause the electronic device to perform the method steps of the first aspect or the third aspect.

[0171] In a twelfth aspect, the present application provides an electronic device, comprising a memory configured to store computer program instructions, a processor configured to execute the computer program instructions, and a communication device, wherein the computer program instructions, when executed by the processor, cause the electronic device to perform the method steps of the second aspect or the fourth aspect.

[0172] In a thirteenth aspect, the present application provides a communication system, comprising a base station and a terminal, wherein the base station is configured to perform any one of the methods provided by the second aspect or the fourth aspect, and the terminal is configured to perform any one of the methods provided by the first aspect or the third aspect.

[0173] In a fourteenth aspect, the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and when the computer program is run on a computer, the computer program causes the computer to perform the method of any one of the first aspect to the fourth aspect.

[0174] In a fifteenth aspect, the present application provides a computer program product, comprising a computer program, and when the computer program is run on a computer, the computer program causes the computer to perform the method of any one of the first aspect to the fourth aspect.

[0175] According to the above technical solutions provided by the embodiments of the present application, at least the following technical effects can be achieved:

[0176] According to the method of the embodiment of the present application, the terminal can obtain the target carrier and the total number of repeated transmissions when performing cross-carrier transmission through the downlink control information, so as to know which carrier should be switched to continue data transmission after data transmission on the source carrier, and perform data transmission on the source carrier and the target carrier according to the total number of repeated transmissions, thereby realizing cross-carrier data transmission. Moreover, by configuring the first set, for example, configuring the number of values of the total number of repeated transmissions in the first set to be less, the number of bits occupied by the total number of repeated transmissions can be reduced, and the saved bits can be used to indicate the target carrier, thereby realizing cross-carrier transmission without increasing the bit overhead. BRIEF DESCRIPTION OF DRAWINGS

[0177] Figure 1 Fig. 1 shows a schematic diagram of an NTN communication system according to an embodiment of the present application;

[0178] Figure 2 Fig. 1 shows a schematic diagram of an NTN communication system according to an embodiment of the present application;

[0179] Figure 3 Fig. 2 shows a schematic diagram of a data transmission method according to an embodiment of the present application;

[0180] Figure 4 Fig. 3 shows a schematic diagram of cross-carrier allocation of the number of repeated transmissions according to an embodiment of the present application;

[0181] Figure 5 Fig. 4 shows a structural block diagram of a data transmission device according to an embodiment of the present application;

[0182] Figure 6 Fig. 5 shows a structural block diagram of a data scheduling device according to an embodiment of the present application;

[0183] Figure 7 Fig. 6 shows a structural block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0184] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in detail with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0185] The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0186] Figure 1 Fig. 1 shows a schematic diagram of an NTN communication system according to an embodiment of the present application. As shown in Fig. 1, the NTN communication system includes a terminal 100 and a base station 200.Figure 1 As shown, the terminal 111 establishes a communication link with the satellite 112. The terminal 111 communicates directly with the satellite 112 (i.e., the base station is on the satellite 112), and in this case, the satellite 112 can be regarded as a base station. During the communication between the terminal 111 and the satellite 112, the terminal 111 ensures stable communication by carrier switching.

[0187] Figure 2 As shown, the terminal 121 establishes a communication link with the satellite 122, the satellite 122 establishes a communication link with the gateway / base station 123, and the gateway / base station 123 accesses the data network 124. During the communication between the terminal 121 and the gateway / base station 123, the satellite 122 only plays a role of a relay forwarding. During the communication between the terminal 121 and the gateway / base station 123, the terminal 121 ensures stable communication with the satellite 122 by carrier switching. Figure 2

[0188] In the embodiments of the present application, the terminal (for example, the terminal 111, the terminal 121) can also be referred to as a user equipment (UE), a terminal device, a user unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user apparatus, etc. For example, the terminal can be a mobile phone, a tablet computer, a notebook computer, or other devices with communication functions, such as an automatic teller machine, an industrial control device, a smart robot, etc.

[0189] In the current terrestrial network Internet of Things protocol, the Narrow Band Internet of Things (NB-IoT) / Long Term Evolution enhanced MTC (eMTC) has only 180 kHz bandwidth in a single frequency point cell. Except for the overhead of the Narrowband Primary Synchronization Signal (NPSS), the Narrowband Secondary Synchronization Signal (NSSS) and the System Information Block (SIB), the remaining traffic channel capacity is very small. In order to support a large number of terminals, multiple frequency points need to be used to improve the network capacity.

[0190] ​There is only one downlink carrier in a multi-carrier cell that supports simultaneously carrying NPSS, NSSS, Narrowband Physical Broadcast Channel (NPBCH), Narrowband Physical Downlink Control Channel (NPDCCH) and Narrowband Physical Downlink Share Channel (NPDSCH) channels. This carrier is called anchor carrier. The terminal needs to monitor NPSS, NSSS, NPBCH, NPDCCH and NPDSCH information on the anchor carrier.

[0191] There can be several downlink carriers in a multi-carrier cell that only carry NPDCCH and NPDSCH but do not carry NPSS, NSSS and NPBCH channels, which are called non-anchor carriers. The terminal can perform data transmission on the non-anchor carrier. In addition, before the terminal enters the connected state, the network will specify a carrier for subsequent downlink data transmission through the random access message 4 (Msg4) of the random access process. The terminal can listen to the paging on the non-anchor carrier in the idle state.

[0192] That is, in NB-IoT / eMTC, a cell includes one anchor carrier and several non-anchor carriers, and the frequency spectrum bandwidth of each carrier is 180 kHz, and the maximum frequency spectrum span of all carriers in the cell does not exceed 20 MHz.

[0193] Based on this, for the problem of how to implement beam management (for example, beam switching) in the communication process in the prior art, a feasible application scheme is to perform beam management through carrier switching, that is, a cell includes multiple beams, different beams correspond to different carriers, and beam switching is realized through carrier switching.

[0194] Since NB-IoT itself supports multiple carriers for transmission, in a feasible technical solution, cross-carrier transmission can be performed based on NB-IoT. Specifically, in one data transmission (uplink transmission or downlink transmission), data transmission is performed based on a first carrier, in the next data transmission (uplink transmission or downlink transmission), data transmission is performed based on a second carrier, and carrier switching is performed between the two data transmissions, thereby realizing cross-carrier data transmission.

[0195] The execution premise of the above technical solution is that the network must ensure that the scheduled data transmission can be completed on the current carrier (the carrier receiving the DCI) when scheduling data transmission (that is, scheduling through the downlink control information (DCI)). This way will seriously limit network scheduling.

[0196] Further, in the Internet of Things protocol, in order to ensure coverage, NB-IOT / eMTC adopts a repetition transmission technology. For downlink transmission, the maximum number of repetitions is 2048 times, and for uplink transmission, the maximum number of repetitions is 128 times.

[0197] The actual number of repetitions of the downlink physical shared channel (PDSCH) / uplink physical shared channel (PUSCH) is dynamically indicated by the corresponding scheduling DCI, that is, the terminal uses a specific bit field (for example, a repetition number indication field) to indicate the number of repetitions of the PDSCH / PUSCH according to the DCI. The maximum number of repetitions of the PDCCH (that is, Rmax) is semi-statically configured by the RRC / SIB.

[0198] The number of repetitions supported by the PUSCH is shown in Table 1.

[0199] Table 1

[0200] (I REP )]]> Number of repetitions (N REP )]]> 0(000) 1 1(001) 2 2(010) 4 3(011) 8 4(100) 16 5(101) 32 6(110) 64 7(111) 128

[0201] In the bit field design of the uplink scheduling DCI (that is, DCI Format N0) in the NB-IOT protocol, “Repetition number – 3 bits as defined in clause 16.5.1.1 of [3]” is included. That is, the uplink scheduling DCI in the NB-IOT protocol includes a 3-bit repetition number indication field. The correspondence between the value of the repetition number indication field of the uplink scheduling DCI and the number of repetitions of the PUSCH is shown in Table 1 above.

[0202] The number of repetitions supported by the PDSCH is shown in Table 2.

[0203] Table 2

[0204] Value (I REP )]]> Number of repetitions (N REP )]]> 0(0000) 1 1(0001) 2 2(0010) 4 3(0011) 8 4(0100) 16 5(0101) 32 6(0110) 64 7(0111) 128 8(1000) 192 9(1001) 256 10(1010) 384 11(1011) 512 12(1100) 768 13(1101) 1024 14(1110) 1536 15(1111) 2048

[0205] In the design of the bit field of the downlink scheduling DCI (i.e. DCI Format N1) in the NB-IOT protocol, there is a "Repetition number - 4 bits as defined in clause 16.4.1.3 of [3]". That is, the downlink scheduling DCI in the NB-IOT protocol contains a 4-bit repetition number indication field. The correspondence between the values of the repetition number indication field of the downlink scheduling DCI and the repetition number of the PDSCH is shown in Table 2 above.

[0206] Due to repeated transmission, a data scheduling (data transmission) needs to last for a long time, which will cause the terminal to perform beam switching (i.e. carrier switching) during a data transmission (PDSCH / PUSCH transmission) in the application scenario of cross-carrier transmission.

[0207] To meet the above-mentioned requirement of carrier switching during a data transmission, an embodiment of the present application proposes a data scheduling method. Specifically, in NB-IoT, data scheduling is usually implemented by DCI. Therefore, in an embodiment of the present application, the related control information of carrier switching is added in the DCI. The terminal performs carrier switching in a data transmission based on the related control information of carrier switching in the DCI, so as to implement cross-carrier data transmission in a data transmission. Further, in the process of cross-carrier switching data transmission, the terminal needs to switch from the source carrier (the carrier used by the base station when sending the DCI) to the target carrier (the carrier to which the terminal needs to switch), which requires the DCI to indicate which carrier is the target carrier for the current cross-carrier switching data transmission, and the data to be transmitted on the source carrier and the target carrier respectively in the current cross-carrier switching data transmission.

[0208] To indicate the target carrier in the DCI, a feasible solution is to add a new field (target carrier indication field) in the DCI used for scheduling (uplink scheduling or downlink scheduling), and when cross-carrier transmission is needed, the target carrier indication field carries target carrier indication information, which is used to indicate which carrier is the target carrier. However, adding a new field in the DCI will increase the bit overhead of the DCI.

[0209] Therefore, to reduce the bit overhead of the DCI, in an embodiment of the present application, the first indication field in the DCI is used to carry the information indicating the target carrier. In other embodiments, other fields other than the first indication field can also be used to carry the information indicating the target carrier.

[0210] Specifically, Figure 3 Fig. 1 shows a flowchart of a data scheduling and transmission method according to an embodiment of the present application. The base station and the terminal are based on the communication protocol shown in Fig. 1. Figure 3The shown flow realizes cross-carrier data transmission (uplink transmission or downlink transmission).

[0211] S300, the base station generates DCI.

[0212] Wherein, S300 is an optional step.

[0213] S301, the base station sends DCI to the terminal, and correspondingly, the terminal receives the DCI sent by the base station.

[0214] Wherein, the DCI sent by the base station can be DCI for scheduling uplink transmission, or DCI for scheduling downlink transmission.

[0215] S302, in the case of cross-carrier transmission of data scheduled by DCI, the terminal determines the target carrier and the total number of repeated transmissions of data according to the first indication field in the DCI, the total number of repeated transmissions of data belongs to a first set, the first set includes at least one value of the total number of repeated transmissions in the first set, and the at least one value of the total number of repeated transmissions is pre-configured or network-configured; or, the terminal determines the target carrier according to the first indication field in the DCI, and receives the total number of repeated transmissions of data configured by the network.

[0216] For example, the first indication field can be the repetition number indication field in the prior art, or other fields in the prior art, or a newly added field. In future protocols, fields with the function of the first indication field can be considered as the first indication field in this application.

[0217] Wherein, the first set can be pre-configured in the terminal, or specified by the protocol, or configured by the network to the terminal.

[0218] In Figure 3 , the implementation of "the terminal determines the target carrier and the total number of repeated transmissions of data according to the first indication field in the DCI" is recorded as the first implementation of S302, and the implementation of "the terminal determines the target carrier according to the first indication field in the DCI, and receives the total number of repeated transmissions of data configured by the network" is recorded as the second implementation of S302.

[0219] S303, the terminal transmits the data scheduled by the DCI on the source carrier and / or the target carrier according to the total number of repeated transmissions of data.

[0220] According to the method of the embodiment of the present application, in the first implementation manner of S302, the terminal can obtain the target carrier and the total number of repeated transmissions when performing cross-carrier transmission through the DCI, so as to know which carrier should be switched to for continuing data transmission after performing data transmission on the source carrier, and perform data transmission on the source carrier and the target carrier according to the total number of repeated transmissions, thereby realizing cross-carrier data transmission. Moreover, by configuring a small number of values of the total number of repeated transmissions in the first set, for example, the number of bits occupied by the total number of repeated transmissions can be reduced, and the saved bits can be used for indicating the target carrier, thereby realizing cross-carrier transmission without increasing the bit overhead of the DCI. In the second implementation manner of S302, the network configures the total number of repeated transmissions of data, so that the DCI only needs to indicate the target carrier, and the target carrier requires a small number of bits when being indicated, and therefore, cross-carrier transmission can be realized without increasing or reducing the bit overhead of the DCI.

[0221] For example, when the first indication field is used to indicate the target carrier, the following manner (1) or manner (2) can be used.

[0222] Manner (1)

[0223] The first part of bits in the first indication field indicates the target carrier, and the first part of bits is part of the bits in the first indication field. At this time, S302 can include: the terminal determines the target carrier according to the first part of bits in the first indication field in the DCI.

[0224] In the manner (1), optionally, S302 can further include: determining the carrier corresponding to the value of the first part of bits as the target carrier according to a second correspondence relationship, and the second correspondence relationship is a correspondence relationship between different values of the first part of bits and carriers.

[0225] In the first case, the second correspondence relationship can be preset, for example, configured by a protocol.

[0226] In the second case, the second correspondence relationship can be configured to the terminal by the network, and at this time, the method further includes: the network (for example, a base station) sends the second correspondence relationship, and the terminal receives the second correspondence relationship configured by the network.

[0227] The second correspondence relationship can be carried in high-layer signaling (for example, a system broadcast message or Radio Resource Control (RRC) dedicated signaling). For example, in an embodiment, the network configures the second correspondence relationship to the terminal through the system broadcast message or the RRC dedicated signaling before data scheduling (before sending the DCI), that is, before S300, the terminal receives the second correspondence relationship configured by the network.

[0228] Specifically, the second correspondence relationship can be one correspondence relationship. Further, considering the difference between uplink transmission and downlink transmission, the second correspondence relationship can also contain two different correspondence relationships for uplink transmission and downlink transmission respectively (for example, the second correspondence relationship can include a first uplink transmission correspondence relationship and a first downlink transmission correspondence relationship).

[0229] Taking a specific application scenario as an example, C1, C2, C3, and C4 correspond to four uplink carriers respectively, and the first part of bits is 2 bits (bit). For uplink transmission, the network configures the terminal with the second correspondence relationship shown in Table 3 through system broadcast message or RRC dedicated signaling as follows.

[0230] Table 3

[0231]

[0232]

[0233] In the third case, the second correspondence relationship can be determined by the terminal according to the carrier set configured by the network, and at this time, the method further includes: the network sends a second set, the terminal receives the second set configured by the network, determines the second correspondence relationship according to the second set, and the second set contains one or more carriers. The carriers in the second set can be considered as candidate target carriers. The number of carriers in the second set is less than or equal to the number of values of the first part of bits. After the terminal obtains the second set, the terminal generates the second correspondence relationship according to the second set. The second set can be carried in high layer signaling (for example, system broadcast message or RRC dedicated signaling). For example, in an embodiment, before data scheduling (before sending DCI), the network configures the terminal with the second set through system broadcast message or RRC dedicated signaling, that is, before S300, the terminal receives the second set configured by the network, and determines the second correspondence relationship according to the second set.

[0234] Specifically, the second set can be one set. Further, considering the difference between uplink transmission and downlink transmission, the second set can also contain two different sets for uplink transmission and downlink transmission respectively (for example, the second set can include a first uplink transmission set and a first downlink transmission set).

[0235] In the third case, the number and / or position of the first part of bits can be pre-configured to the terminal, so that the terminal generates the second correspondence. Taking a specific application scenario as an example, C1, C2, C3 and C4 correspond to four uplink carriers respectively, and the first part of bits is two bits (bit). For uplink transmission, the network configures the second set as {C1, C2, C3, C4} to the terminal through system broadcast message or RRC dedicated signaling. The terminal generates the second correspondence as shown in Table 3 according to the second set {C1, C2, C3, C4}.

[0236] Mode (2)

[0237] All bits in the first indication field indicate the target carrier.

[0238] The implementation of mode (2) can refer to mode (1), and the difference is that all bits in the first indication field are used to indicate the target carrier in mode (2), and in the third case in mode (1), the terminal can default that the bits used to indicate the target carrier are all bits in the first indication field, so that the number and / or position of the bits used to establish the second correspondence can not be pre-configured to the terminal. In other descriptions, the first part of bits in mode (1) is replaced by all bits in the first indication field, and the implementation of mode (2) can be understood, which will not be described here.

[0239] According to the embodiments of the application, new bit field is not needed to be additionally added to indicate the target carrier of cross-carrier transmission, and when cross-carrier transmission occurs, the target carrier can be indicated through the existing first indication field, so that the bit overhead of DCI is effectively reduced.

[0240] Optionally, before S302, the method can further include S310:

[0241] In S310, the terminal determines the number of repetitions on the source carrier and the target carrier according to the total number of repetitions and the DCI.

[0242] At this time, S302 can include the following in specific implementation: when the terminal determines that the number of repetitions on the target carrier is not zero according to the DCI, the terminal determines the target carrier according to the DCI. When the terminal determines that the number of repetitions on the target carrier is zero according to the DCI, the terminal does not need to determine the target carrier (does not need to perform S302). That is, the data is transmitted across carriers in the case that the number of repetitions on the target carrier is not zero.

[0243] S303 can include the following in specific implementation: the terminal performs data transmission based on the target carrier indicated by the DCI and the number of repetitions on the source carrier and the target carrier.

[0244] It can be understood that, in S300, when the data transmission scheduled by the DCI is cross-carrier data transmission, the DCI contains information indicating the target carrier and information indicating the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier. When the data transmission scheduled by the DCI is not cross-carrier data transmission, the DCI does not contain information indicating the target carrier, contains information indicating the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier, and the number of repetitions on the target carrier is zero.

[0245] In the case where the DCI is used to schedule uplink transmission, the data transmission in the present application refers to uplink data transmission, and in the case where the DCI is used to schedule downlink transmission, the data transmission in the present application refers to downlink data transmission.

[0246] Further, in the data transmission process, when it is determined according to the DCI that cross-carrier data transmission is needed, data transmission is first allocated on the source carrier according to the number of repetitions of the source carrier, and then the source carrier is switched to the target carrier, and data transmission is allocated on the target carrier according to the number of repetitions of the target carrier.

[0247] The terminal confirms the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier according to the DCI, and determines the target carrier according to the DCI when the number of repetitions on the target carrier is not zero, so that carrier switching can be realized in one currently scheduled data transmission.

[0248] In the specific implementation of S310, the number of repetitions on the source carrier and the target carrier can be determined by the following method A or method B.

[0249] Method A

[0250] The repetition number allocation indication information is used to indicate the proportion between the number of repetitions on the source carrier or the target carrier and the total number of repetitions of the data transmission scheduled by the current DCI. The terminal determines the number of repetitions on the source carrier or the target carrier according to the total number of repetitions and the proportion indicated by the repetition number allocation indication information, and further determines the number of repetitions on the target carrier or the source carrier (the sum of the number of repetitions on the source carrier and the target carrier is the total number of repetitions).

[0251] In method A, different values of the repetition number allocation indication information correspond to different proportion values. In an implementation, the terminal can receive a third correspondence relationship configured by the network, which is a correspondence relationship between different values of the repetition number allocation indication information and proportion values, so that the terminal can determine the proportion between the number of repetitions on the source carrier or the target carrier and the total number of repetitions according to the value of the repetition number allocation indication information and the third correspondence relationship.

[0252] The third correspondence relationship can be carried in high layer signaling (e.g., system broadcast message or RRC dedicated signaling). For example, in an embodiment, the network configures the third correspondence relationship to the terminal through system broadcast message or RRC dedicated signaling before data scheduling (before sending DCI), i.e., before S300, the terminal receives the third correspondence relationship configured by the network.

[0253] Specifically, the third correspondence relationship can be one correspondence relationship. Further, considering that the number of repeated transmissions supported by uplink transmission and downlink transmission is different, the third correspondence relationship can also include two different correspondence relationships for uplink transmission respectively (e.g., the third correspondence relationship includes a third uplink transmission correspondence relationship and a third downlink transmission correspondence relationship).

[0254] For example, in a specific application scenario, the network configures the third correspondence relationship shown in Table 4 below to the terminal through system broadcast message or RRC dedicated signaling.

[0255] Table 4

[0256] Cross-carrier transmission indication field value Proportion coefficient 00 0 (no allocation of the number of repeated transmissions on the target carrier, i.e. source carrier transmission) 01 1 / 2 (1 / 2 of the number of repeated transmissions on the target carrier) 10 3 / 4 (3 / 4 of the number of repeated transmissions on the target carrier) 11 1 (all the number of repeated transmissions on the target carrier)

[0257] The number of repeated transmission allocation indication information can be carried in the cross-carrier transmission indication field in the DCI.

[0258] When the value of the cross-carrier transmission indication field in the DCI (or the value of the number of repeated transmission allocation indication information) is 00, it indicates that the current scheduling is source carrier scheduling, i.e., the terminal does not perform carrier switching in this data transmission, and the data transmission can be completed in the source carrier.

[0259] When the value of the cross-carrier transmission indication field in the DCI is 01, 10, or 11, the terminal needs to perform carrier switching in this data transmission and needs to perform part of the data transmission in the target carrier. In particular, when the value of the cross-carrier transmission indication field in the DCI is 11, the data transmission is completely performed in the target carrier.

[0260] Figure 4 The number of repeated transmission allocation across carriers is shown in FIG. 4. Figure 4

[0261] The DCI is transmitted on carrier 1 (source carrier). Assuming that the value of the cross-carrier transmission indication field in the DCI is 01, after receiving the DCI, the terminal performs data transmission on carrier 1 (source carrier), and the number of repeated transmissions performed on carrier 1 (source carrier) is 1 / 2 of the total number of repeated transmissions. ​

[0262] After the terminal completes the repeated transmission of 1 / 2 of the total number of repeated transmissions on carrier 1, it switches from carrier 1 (source carrier) to carrier 2 (target carrier) and performs data transmission on carrier 2 (target carrier), and the number of repeated transmissions performed on carrier 2 (target carrier) is 1 / 2 of the total number of repeated transmissions.

[0263] As shown in Table 4, it is predefined that the proportion pointed to by the cross-carrier transmission indication field is allocated to the target carrier. Alternatively, it can also be predefined that the proportion pointed to by the cross-carrier transmission indication field is allocated to the source carrier.

[0264] In another implementation of the manner A, the network does not directly configure the terminal with the third correspondence relationship, but configures the terminal with a third set, which includes one or more proportion values. The number of proportion values in the third set is less than or equal to the number of values of the cross-carrier transmission indication field. After obtaining the third set, the terminal generates the third correspondence relationship according to the third set. For example, before S300, the terminal receives the third set configured by the network and determines the third correspondence relationship according to the third set.

[0265] Specifically, the third set can be one set. Further, considering the difference between uplink transmission and downlink transmission, the third set can also contain two different sets for uplink transmission and downlink transmission respectively (for example, the third set includes a third uplink transmission set and a third downlink transmission set).

[0266] Taking a specific application scenario as an example, the network configures the terminal with the third set {0, 1 / 2, 3 / 4, 1} through system broadcast message or RRC dedicated signaling, and the cross-carrier transmission indication field is 2 bits (bit). The terminal generates the third correspondence relationship shown in Table 4 according to the third set {0, 1 / 2, 3 / 4, 1}.

[0267] Manner B

[0268] The repeated transmission number allocation indication information is used to indicate the number of repeated transmissions on the source carrier or the target carrier. The terminal determines the number of repeated transmissions on the source carrier or the target carrier according to the number of repeated transmissions indicated by the repeated transmission number allocation indication information, and further determines the number of repeated transmissions on the target carrier or the source carrier according to the total number of repeated transmissions (the sum of the number of repeated transmissions on the source carrier and the target carrier is the total number of repeated transmissions).

[0269] In an implementation form of the method B, different values of the repetition number allocation indication information correspond to different repetition numbers. For example, the network configures a fourth correspondence relationship for the terminal, the fourth correspondence relationship is a correspondence relationship between different values of the repetition number allocation indication information and repetition numbers, so that the terminal can determine the repetition number on the source carrier or the target carrier according to the value of the repetition number allocation indication information and the fourth correspondence relationship.

[0270] The fourth correspondence relationship can be carried in high layer signaling (e.g., system broadcast message or RRC dedicated signaling). For example, in an embodiment, before data scheduling (before sending DCI), the network configures the fourth correspondence relationship for the terminal through system broadcast message or RRC dedicated signaling, i.e., before S300, the terminal receives the fourth correspondence relationship configured by the network.

[0271] Specifically, the fourth correspondence relationship can be one correspondence relationship. Further, considering that the repetition numbers supported by uplink transmission and downlink transmission are different, the fourth correspondence relationship can also include two different correspondence relationships for uplink transmission respectively (e.g., the fourth correspondence relationship includes a fourth uplink transmission correspondence relationship and a fourth downlink transmission correspondence relationship).

[0272] For example, in a specific application scenario, for uplink transmission, the network configures the fourth correspondence relationship shown in Table 5 for the terminal through system broadcast message or RRC dedicated signaling.

[0273] Table 5

[0274] Cross-carrier transmission indication field value Number of repeated transmissions 00 0 (0 repeated transmissions on the target carrier, i.e. source carrier transmission) 01 16 (16 repeated transmissions on the target carrier) 10 32 (32 repeated transmissions on the target carrier) 11 64 (64 repeated transmissions on the target carrier)

[0275] The repetition number allocation indication information can be carried in the cross-carrier transmission indication field in the DCI.

[0276] Based on the fourth correspondence relationship shown in Table 5, assuming that the DCI sent by the base station is the DCI for scheduling uplink transmission, the total repetition number is 128, and the value of the cross-carrier transmission indication field (or the value of the repetition number allocation indication information) is 10, as shown in Table 5, the repetition number on the target carrier is 32. That is, in the currently scheduled uplink transmission, the repetition number on the source carrier is 96 (128-32), and the repetition number on the target carrier is 32.

[0277] As shown in Table 5, it is defined in advance that the repetition number pointed to by the cross-carrier transmission indication field is allocated to the target carrier. Alternatively, it can also be defined in advance that the repetition number pointed to by the cross-carrier transmission indication field is allocated to the source carrier.

[0278] In another implementation form of the method B, the network does not directly configure the terminal with the fourth correspondence, but configures the terminal with a fourth set, which includes multiple values of the number of repetitions. The number of values of the number of repetitions in the fourth set is less than or equal to the number of values of the indication information of the number of repetitions. The terminal generates the fourth correspondence according to the fourth set after obtaining the fourth set. That is, before S300, the terminal receives the fourth set configured by the network, and determines the fourth correspondence according to the fourth set.

[0279] Specifically, the fourth set can be one set. Further, considering the difference between uplink transmission and downlink transmission, the fourth set can also include two different sets for uplink transmission and downlink transmission respectively (for example, the fourth set includes a fourth uplink transmission set and a fourth downlink transmission set).

[0280] Taking a specific application scenario as an example, the network configures the terminal with the fourth set {0, 16, 32, 64} through system broadcast message or RRC dedicated signaling. The cross-carrier transmission indication field in the DCI is 2 bits. The terminal generates the fourth correspondence as shown in Table 5 according to the fourth set {0, 16, 32, 64}.

[0281] In the above implementation form of the method B, the minimum unit of the number of repetitions allocated for single repetition transmission can be defined as n times of repetition forming a data segment (n is a natural number), and the data segment is taken as the minimum unit of the number of repetitions allocated, which is not limited in the present application.

[0282] In another implementation form of the method B, different values of the indication information of the number of repetitions correspond to different numbers of data segments. For example, the values of the indication information of the number of repetitions and the numbers of data segments have a correspondence (referred to as a fifth correspondence). The terminal determines the number of data segments on the source carrier or the target carrier according to the value of the indication information of the number of repetitions and the fifth correspondence, and further determines the number of repetitions on the source carrier or the target carrier.

[0283] Taking a specific application scenario as an example, n is defined as 2, the network configures the terminal with the fifth correspondence as shown in Table 6 through system broadcast message or RRC dedicated signaling, or the network configures the terminal with a fifth set {0, 8, 16, 32}, and the terminal generates the fifth correspondence as shown in Table 6 according to the fifth set {0, 8, 16, 32}.

[0284] Table 6

[0285] Cross-carrier transmission indication field value Number of data segments 00 0 (i.e. source carrier transmission) 01 8 (8 data segments transmitted on the target carrier) 10 16 (16 data segments transmitted on the target carrier) 11 32 (32 data segments transmitted on the target carrier)

[0286] Based on the example shown in Table 6, assuming that the DCI sent by the base station is DCI scheduling uplink transmission, the total number of repeated transmissions is 128 (64 data segments). When the value of the cross-carrier transmission indication field is 10, as shown in Table 6, 16 data segments are transmitted on the target carrier. That is, in the currently scheduled uplink transmission, 48 (64-16) data segments are transmitted on the source carrier (the number of repeated transmissions is 96), and 16 data segments are transmitted on the target carrier (the number of repeated transmissions is 32).

[0287] As shown in Table 6, the number of data segments pointed to by the cross-carrier transmission indication field is assigned to the target carrier in advance. In another embodiment, the number of data segments pointed to by the cross-carrier transmission indication field can also be assigned to the source carrier in advance.

[0288] When the information indicating the number of repeated transmissions of the currently scheduled data transmission on the source carrier and the target carrier in the DCI indicates that the number of repeated transmissions on the target carrier is zero (the data transmission is not cross-carrier data transmission), the terminal takes the number of repeated transmissions indicated by the first indication field as the total number of repeated transmissions of the data transmission scheduled by the DCI (see Tables 1 and 2).

[0289] When the information indicating the number of repeated transmissions of the currently scheduled data transmission on the source carrier and the target carrier in the DCI indicates that the number of repeated transmissions on the target carrier is not zero (the data transmission is cross-carrier data transmission), the first part of the bits in the first indication field of the DCI is used to indicate the target carrier, and different values of the first part of the bits correspond to different carriers. The terminal determines the carrier corresponding to the value of the first part of the bits as the target carrier.

[0290] The original function of the first indication field in the DCI is to indicate the total number of repeated transmissions (see the related content of Tables 1 and 2 above). However, when the first part of the bits in the first indication field is used to indicate the target carrier, the first indication field cannot indicate the total number of repeated transmissions based on the rules of Tables 1 and 2. In the execution process of S302 and S303 described above, the terminal needs to know the total number of repeated transmissions of the data transmission scheduled by the current DCI, so a new scheme for indicating the total number of repeated transmissions needs to be designed.

[0291] In S302 described above, in the implementation manner of determining the total number of repeated transmissions of data, the manner in which the terminal determines the total number of repeated transmissions of data according to the first indication field in the DCI is referred to as manner one, and the manner in which the terminal receives the total number of repeated transmissions of data configured by the network is referred to as manner two. The following specifically describes manner one or manner two.

[0292] Manner One

[0293] The network configures a total number of repetitions (which can be denoted as a first number) for the terminal. Correspondingly, the terminal receives the first number of repetitions configured by the network. Exemplarily, the configuration process can be performed before S300. At this time, the target carrier can be indicated by the first part of bits in the first indication field, or can be indicated by all bits in the first indication field.

[0294] When the information indicating the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier in the DCI indicates that the number of repetitions on the target carrier is not zero (the data transmission is a cross-carrier data transmission), the terminal takes the first number as the total number of repetitions of the data transmission scheduled by the DCI.

[0295] In the first mode, since the total number of repetitions for the cross-carrier data transmission is configured by the network, the first indication field does not need to indicate the total number of repetitions when the cross-carrier data transmission, and therefore, the first part of bits used to indicate the target carrier is all bits of the first indication field.

[0296] The second mode

[0297] When the information indicating the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier in the DCI indicates that the number of repetitions on the target carrier is not zero (the data transmission is a cross-carrier data transmission), the second part of bits in the first indication field of the DCI is used to indicate the total number of repetitions, the second part of bits is part or all of the remaining bits in the first indication field except the first part of bits (used to indicate the target carrier), different values of the second part of bits correspond to different numbers, and the terminal determines the number corresponding to the value of the second part of bits as the total number of repetitions.

[0298] In an implementation mode of the second mode, the network configures a first correspondence relationship for the terminal, the first correspondence relationship is a correspondence relationship between different values of the second part of bits and candidate total numbers of repetitions. The first correspondence relationship can be carried in high-layer signaling (for example, a system broadcast message or RRC dedicated signaling). Exemplarily, in an embodiment, the network configures the first correspondence relationship for the terminal through the system broadcast message or the RRC dedicated signaling before data scheduling (before sending the DCI), that is, the terminal receives the first correspondence relationship configured by the network before S300.

[0299] Specifically, the first correspondence relationship can be one correspondence relationship. Further, considering the difference between uplink transmission and downlink transmission, the first correspondence relationship can also include two different correspondence relationships for uplink transmission and downlink transmission respectively (for example, the first correspondence relationship includes a second uplink transmission correspondence relationship and a second downlink transmission correspondence relationship).

[0300] In another implementation, the network does not directly configure the terminal with the first correspondence, but configures the terminal with a first set, which includes one or more total repetition numbers that can be a candidate total repetition number. The number of total repetition numbers in the first set is less than or equal to the number of values of the second part of bits. After the terminal obtains the first set, the terminal generates the first correspondence according to the first set. For example, before S300, the terminal receives the first set configured by the network, and determines the first correspondence according to the first set.

[0301] Specifically, the first set can be one set. Further, considering the difference between uplink transmission and downlink transmission, the first set can also include two different sets for uplink transmission and downlink transmission respectively (for example, the first set includes a second uplink transmission set and a second downlink transmission set).

[0302] Further, in the first correspondence, the candidate total repetition number (the first set) is composed of candidate values with larger values in the candidate total repetition number (refer to Table 1 and Table 2) in the non-cross-carrier transmission scenario. For example, for uplink data transmission, the candidate total repetition number (the first set) in the first correspondence can be {64, 128} or {32, 64, 128}; for downlink transmission, the candidate total repetition number (the first set) in the first correspondence can be {768, 1024, 1536, 2048}, {1024, 1536, 2048} or {1536, 2048}.

[0303] Further, in the above-mentioned manner two, the number and / or position of the first part of bits and / or the second part of bits in the first indication field can be configured by the network for the terminal. For example, before S300, the network sends bit configuration information to the terminal, and the terminal receives the bit configuration information, which is used to configure one or more of the following information: the number of the first part of bits in the first indication field, the position of the first part of bits in the first indication field, the number of the second part of bits in the first indication field, and the position of the second part of bits in the first indication field.

[0304] Specifically, in an implementation, the bit configuration information is used to configure the number and position of the first part of bits in the first indication field, or the number and position of the second part of bits in the first indication field.

[0305] In another implementation, the bit configuration information is used to configure the position of the first part of bits and / or the position of the second part of bits in the first indication field. The terminal determines the number of the first part of bits according to the number of the candidate carriers of the target carrier (the number of carriers in the second correspondence or the second set), and / or determines the number of the second part of bits according to the number of the candidate number of total repetition times of data (the number of total repetition times of data in the first correspondence or the first set).

[0306] For example, the set of carriers (second set) in the second correspondence configured by the network is {C1, C2, C3, C4}, the set of total repetition times (first set) in the first correspondence configured by the network is {64, 128}, and the network configures the first part of bits to occupy the bit positions counted from the first bit of the first indication field, and configures the second part of bits to occupy the bit positions counted from the last bit of the first indication field. Then, the terminal determines the number of the first part of bits to be 2 according to the number of carriers in {C1, C2, C3, C4}, and determines the number of the second part of bits to be 1 according to the number of the repetition times in {64, 128}. Based on the position of the first part of bits and the position of the second part of bits configured by the network, the terminal determines the first two bits in the first indication field as the first part of bits, and the last bit as the second part of bits.

[0307] For another example, the set of carriers (second set) in the second correspondence configured by the network is {C1, C2}, the set of total repetition times (first set) in the first correspondence configured by the network is {16, 32, 64, 128}, and the network configures the second part of bits to occupy the bit positions counted from the first bit of the first indication field, and configures the first part of bits to occupy the bit positions counted from the last bit of the first indication field. Then, the terminal determines the number of the first part of bits to be 1 according to the number of carriers in {C1, C2}, and determines the number of the second part of bits to be 2 according to the number of the repetition times in {16, 32, 64, 128}. Based on the position of the first part of bits and the position of the second part of bits configured by the network, the terminal determines the last bit in the first indication field as the first part of bits, and the first two bits as the second part of bits.

[0308] Optionally, if the first indication field is the repetition number indication field in the prior art, in the case of DCI scheduling uplink transmission, the first part of bits and the second part of bits can be in the following two cases:

[0309] Case 1: The number and position of the first part of bits are the first two or last two bit positions of the first indication field, and the second part of bits is the bit in the first indication field except the first part of bits.

[0310] Case 2, the number and position of the first part of bits are the first or last bit of the first indication field, and the second part of bits are the bits in the first indication field except the first part of bits.

[0311] Optionally, if the first indication field is the repetition number indication field in the prior art, in the case of DCI scheduling downlink transmission, the first part of bits and the second part of bits can be the following three cases:

[0312] Case 1, the number and position of the first part of bits are the first two or last two bits of the first indication field, and the second part of bits are the bits in the first indication field except the first part of bits.

[0313] Case 2, the number and position of the first part of bits are the first or last bit of the first indication field, and the second part of bits are the bits in the first indication field except the first part of bits.

[0314] Case 3, the number and position of the first part of bits are the first three or last three bits of the first indication field, and the second part of bits are the bits in the first indication field except the first part of bits.

[0315] For the information indicating the number of repetitions of the currently scheduled data transmission on the source carrier and the target carrier, in an embodiment of the present application, a new field (cross-carrier transmission indication field) is added to the DCI used for scheduling (uplink scheduling or downlink scheduling), and the cross-carrier transmission indication field is used to carry repetition number allocation indication information (the value of the cross-carrier transmission indication field is the value of the repetition number allocation indication information). The repetition number allocation indication information is used to indicate the number of repetitions of the currently scheduled data transmission (including PUSCH transmission or PDSCH transmission) on the source carrier and / or the target carrier.

[0316] The implementation process of the data transmission method according to the present application for uplink data transmission and downlink data transmission is illustrated by two application scenarios as follows.

[0317] Application scenario one

[0318] For uplink transmission, the network configures the terminal with the fourth set {0, 16, 32, 64} through system broadcast message or RRC dedicated signaling, the cross-carrier transmission indication field is 2 bits, and the terminal generates the fourth corresponding relationship as shown in Table 5 according to the fourth set {0, 16, 32, 64}.

[0319] For uplink transmission, the network sends bit configuration information to the terminal through system broadcast message or RRC dedicated signaling, which specifies / regulates the first two bits in the first indication field in the scheduling DCI to indicate the target uplink carrier (first part of bits), and the last one bit to indicate the total number of repeated transmissions corresponding to the cross-carrier transmission (second part of bits).

[0320] For uplink transmission, the network configures the first set {64, 128} to the terminal through system broadcast message or RRC dedicated signaling. The terminal generates the first corresponding relationship as shown in Table 7 according to the first set {64, 128}.

[0321] Table 7

[0322] Second part of bits Total number of repeated transmissions 0 64 1 128

[0323] For uplink transmission, the network configures the second set {C1, C2, C3, C4} to the terminal through system broadcast message or RRC dedicated signaling. The terminal generates the second corresponding relationship as shown in Table 3 according to the second set {C1, C2, C3, C4}.

[0324] The base station sends DCI to the terminal for scheduling uplink data transmission, and the terminal receives the DCI for scheduling uplink data transmission.

[0325] The terminal reads the value of the cross-carrier transmission indication field and the first indication field of the DCI.

[0326] When the value of the cross-carrier transmission indication field is 10 and the value of the first indication field is 100, according to the value of the cross-carrier transmission indication field and Table 5, the terminal determines that the current data transmission is cross-carrier transmission, and the number of repeated transmissions on the target carrier is 32, then according to the first 2 bits of the first indication field and Table 3, it is determined that the target carrier is C3 (10 in Table 3 corresponds to uplink carrier C3), and according to the last 1 bit of the first indication field, it is determined that the total number of repeated transmissions of the current scheduling is 64 (0 in Table 6 indicates that the total number of repeated transmissions of the current scheduling is 64), and further the number of repeated transmissions on the source carrier can be determined as 32 (i.e. the total number of repeated transmissions minus the number of repeated transmissions on the target carrier, i.e. 64-32=32).

[0327] When the value of the cross-carrier transmission indication field is 00 and the value of the repeated transmission indication field is 100, according to the value of the cross-carrier transmission indication field, the terminal determines that the current scheduling is source carrier transmission, and since this scheduling is source carrier transmission, the first indication field is only used to indicate the number of repeated transmissions of the current scheduling, and the terminal determines the total number of repeated transmissions as 16 according to the value of the first indication field and Table 1 (100 in Table 1 corresponds to 16).

[0328] Application scenario two

[0329] For downlink transmission, the network configures the fourth set {0, 64, 128, 256} to the terminal through system broadcast message or RRC dedicated signaling, the cross-carrier transmission indication field is 2 bits, and the terminal generates the fourth correspondence shown in Table 8 according to the fourth set {0, 64, 128, 256}.

[0330] Table 8

[0331] Cross-carrier transmission indication field value Number of repeated transmissions 00 0 (0 repeated transmissions on the target carrier, i.e. source carrier transmission) 01 64 (64 repeated transmissions on the target carrier) 10 128 (128 repeated transmissions on the target carrier) 11 256 (256 repeated transmissions on the target carrier)

[0332] For downlink transmission, the network sends bit configuration information to the terminal through system broadcast message or RRC dedicated signaling, the bit configuration information specifies / regulates that the first two bits in the first indication field in the scheduling DCI are used to indicate the target uplink carrier (the first part of bits), and the last two bits are used to indicate the total number of repeated transmissions corresponding to the cross-carrier transmission (the second part of bits).

[0333] For downlink transmission, the network configures the first set {768, 1024, 1536, 2048} to the terminal through system broadcast message or RRC dedicated signaling. The terminal generates the first correspondence shown in Table 9 according to the first set {768, 1024, 1536, 2048}.

[0334] Table 9

[0335] Second part of bits Total number of repeated transmissions 00 768 01 1024 10 1536 11 2048

[0336] For downlink transmission, the network configures the second set {C1, C2, C3, C4} to the terminal through system broadcast message or RRC dedicated signaling. The terminal generates the second correspondence shown in Table 3 according to the second set {C1, C2, C3, C4}.

[0337] The base station sends DCI for scheduling downlink data transmission to the terminal, and the terminal receives the DCI for scheduling downlink data transmission.

[0338] The terminal reads the value of the cross-carrier transmission indication field and the first indication field of the DCI.

[0339] When the value of the cross-carrier transmission indication field is 10 and the value of the first indication field is 1000, according to the value of the cross-carrier transmission indication field and Table 8, the terminal determines that the current scheduling is cross-carrier transmission, and the number of repeated transmissions on the target carrier is 128, then according to the first 2 bits of the first indication field and Table 3, the target carrier (10 in Table 3 corresponds to downlink carrier C3) is determined, and according to the last 2 bits of the first indication field, it is determined that the total number of repeated transmissions of the current scheduling is 768 (00 in Table 9 indicates that the total number of repeated transmissions of the current scheduling is 768), and then the number of repeated transmissions on the source carrier (i.e. the total number of repeated transmissions minus the number of repeated transmissions on the target carrier, i.e. 768-128=640) can be determined.

[0340] When the value of the cross-carrier transmission indication field is 00 and the value of the repetition indication field is 1000, according to the value of the cross-carrier transmission indication field, the terminal determines that the current scheduling is source carrier transmission, since this scheduling is source carrier transmission, the first indication field is only used to indicate the number of repeated transmissions of the current scheduling, and the terminal determines the total number of repeated transmissions as 192 according to the value of the first indication field and Table 2 (1000 in Table 2 corresponds to 192).

[0341] Further, based on the method of the embodiment shown in the figure, an embodiment of the present application further proposes a data transmission device, which is configured in a terminal, and each module in the data transmission device can perform corresponding actions under the control of the processing module of the terminal. Figure 3 The method of the embodiment shown in the figure, an embodiment of the present application further proposes a data transmission device, which is configured in a terminal, and each module in the data transmission device can perform corresponding actions under the control of the processing module of the terminal.

[0342] Figure 5 The figure shows a structure block diagram of a data transmission device according to an embodiment of the present application. As shown in the figure, Figure 5 The data transmission device 500 includes:

[0343] The transceiver module 510 is configured to receive downlink control information.

[0344] The confirmation module 520 is configured to, in the case of cross-carrier transmission of data scheduled by the downlink control information, determine a target carrier and a total number of repeated transmissions of the data according to a first indication field in the downlink control information, the total number of repeated transmissions of the data belonging to a first set, the first set including at least one value of the total number of repeated transmissions, the at least one value of the total number of repeated transmissions being pre-configured or network-configured.

[0345] The transceiver module 510 is further configured to transmit the data on the source carrier and the target carrier according to the total number of repeated transmissions, the source carrier being a carrier where the downlink control information is located.

[0346] Optionally, the confirmation module 520 is specifically configured to determine the target carrier according to a first part of bits in the first indication field in the downlink control information.

[0347] Optionally, the confirmation module 520 is specifically configured to determine the target carrier as a carrier corresponding to a value of the first part of bits according to a second correspondence relationship, the second correspondence relationship being a correspondence relationship between different values of the first part of bits and carriers.

[0348] Optionally, the transceiver module 510 is further configured to:

[0349] receive the second correspondence relationship configured by the network;

[0350] Or,

[0351] receiving a second set of network configurations, the second set comprising one or more carriers, and determining the second correspondence according to the second set.

[0352] Optionally, the confirming module 520 is specifically configured to determine the total number of repeated transmissions of the data according to the second part of bits in the first indication field in the downlink control information.

[0353] Optionally, the confirming module 520 is specifically configured to determine the total number of repeated transmissions of the data according to a first correspondence, the first correspondence being a correspondence between different values of the second part of bits and values of the total number of repeated transmissions in the first set.

[0354] Optionally, the transceiver module 510 is further configured to:

[0355] receiving the first correspondence configured by the network;

[0356] or,

[0357] receiving the first set of network configurations configured by the network, and determining the first correspondence according to the first set.

[0358] Optionally, the transceiver module 510 is further configured to:

[0359] receiving bit configuration information, the bit configuration information being used to configure one or more of the following information: the number of the first part of bits, the position of the first part of bits, the number of the second part of bits, and the position of the second part of bits.

[0360] Optionally, the bit configuration information is used to configure the position of the first part of bits and / or the position of the second part of bits; and the confirming module 520 is further configured to determine the number of the first part of bits according to the number of candidate carriers of the target carrier, and / or determine the number of the second part of bits according to the number of candidate values of the total number of repeated transmissions of the data.

[0361] Optionally, the second part of bits is the remaining bits in the first indication field except the first part of bits.

[0362] In the case that the downlink control information schedules uplink transmission, the number and position of the first part of bits are the first two or last two bits of the first indication field, or the number and position of the first part of bits are the first or last bit of the first indication field; or,

[0363] In the case that the downlink control information schedules the downlink transmission, the first part of bits is two bits in front of or two bits behind the first indication field, or the first part of bits is one bit in front of or one bit behind the first indication field, or the first part of bits is three bits in front of or three bits behind the first indication field.

[0364] Optionally, the downlink control information comprises repetition number allocation indication information,

[0365] The confirmation module 520 is further configured to determine the repetition number on the source carrier and the target carrier according to the total repetition number and the repetition number allocation indication information.

[0366] The transceiver module 510 is specifically configured to transmit the data on the source carrier and the target carrier according to the repetition number on the source carrier and the target carrier.

[0367] Optionally, in the case that the repetition number on the target carrier is not zero, the data is transmitted across carriers.

[0368] Optionally, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0369] Optionally, the repetition number allocation indication information is used to indicate a proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data, and the confirmation module 520 is specifically configured to:

[0370] determine the repetition number on the source carrier and the target carrier according to the total repetition number of the data and the proportion indicated by the repetition number allocation indication information.

[0371] Optionally, the confirmation module 520 is further configured to:

[0372] determine, according to a third correspondence relationship, a proportion value corresponding to a value of the repetition number allocation indication information as the proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data, the third correspondence relationship being a correspondence relationship between different values of the repetition number allocation indication information and proportion values.

[0373] Optionally, the transceiver module 510 is further configured to:

[0374] receive the third correspondence relationship configured by a network.

[0375] or

[0376] receiving a third set of network configurations, the third set comprising one or more values of the repetition number, and determining the third correspondence relationship according to the third set.

[0377] Optionally, the repetition number allocation indication information is used to indicate the repetition number on the source carrier or the target carrier.

[0378] Optionally, the confirmation module 520 is further configured to: determine the repetition number on the source carrier or the target carrier according to a fourth correspondence relationship and a value of the repetition number allocation indication information, the fourth correspondence relationship being a correspondence relationship between different values of the repetition number allocation indication information and the repetition number.

[0379] Optionally, the transceiver module 510 is further configured to:

[0380] receiving the fourth correspondence relationship configured by the network;

[0381] or,

[0382] receiving a fourth set of network configurations, the fourth set comprising one or more values of the repetition number, and determining the fourth correspondence relationship according to the fourth set.

[0383] Optionally, the confirmation module 520 is further configured to determine whether the data scheduled by the DCI is transmitted cross-carrier according to the DCI.

[0384] Specifically, the confirmation module 520 determines the repetition number allocation on the source carrier and the target carrier according to the DCI, and when the repetition number on the target carrier is not zero, the data scheduled by the DCI is transmitted cross-carrier. When the confirmation module 520 determines that the repetition number on the target carrier is not zero, the target carrier is determined according to a first indication field of the DCI. The transceiver module 510 transmits the data according to the target carrier indicated by the DCI and the repetition number allocation on the source carrier and the target carrier.

[0385] Specifically, when the transceiver module 510 determines that cross-carrier data transmission is needed according to the DCI, the data is first transmitted on the source carrier according to the repetition number allocation on the source carrier, and then the source carrier is switched to the target carrier, and the data is transmitted on the target carrier according to the repetition number allocation on the target carrier.

[0386] Further, based on Figure 3The method of the embodiment shown, and an embodiment of the present application further proposes a data scheduling device, which is configured in a base station, and each module in the data scheduling device can perform corresponding actions under the control of a processing module of the base station.

[0387] Figure 6 Fig. 6 shows a structure block diagram of a data scheduling device according to an embodiment of the present application. As shown in Fig. 6, the data scheduling device 600 comprises: Figure 6

[0388] The sending module 610 is configured to send the downlink control information, wherein in the case of cross-carrier transmission of data scheduled by the downlink control information, a first indication field in the downlink control information is used to indicate a target carrier and a total number of repeated transmissions of the data, the total number of repeated transmissions of the data belongs to a first set, the first set comprises at least one value of the total number of repeated transmissions, and the at least one value of the total number of repeated transmissions is pre-configured or network-configured.

[0389] Optionally, the data scheduling device 600 further comprises a DCI generation module 620, which is configured to generate DCI, wherein the DCI contains information used to indicate allocation of the number of repeated transmissions on the source carrier and the target carrier, and when the number of repeated transmissions on the target carrier is not zero, the DCI further contains information used to indicate the target carrier.

[0390] Optionally, a first part of bits in the first indication field in the downlink control information is used to indicate the target carrier.

[0391] Optionally, a value of the first part of bits corresponds to the target carrier, and a correspondence between different values of the first part of bits and carriers is a second correspondence.

[0392] Optionally, the sending module 610 is further configured to:

[0393] send the second correspondence;

[0394] or,

[0395] send a second set used to determine the second correspondence, and the second set contains one or more carriers.

[0396] Optionally, a second part of bits in the first indication field in the downlink control information is used to indicate the total number of repeated transmissions of the data.

[0397] Optionally, a value of the second part of bits corresponds to the total number of repeated transmissions of the data, and a correspondence between different values of the second part of bits and values of the total number of repeated transmissions in the first set is a first correspondence.​

[0398] Optionally, the sending module 610 is further configured to:

[0399] send the first correspondence relationship;

[0400] or,

[0401] send the first set, the first set being used to determine the first correspondence relationship.

[0402] Optionally, the sending module 610 is further configured to:

[0403] send bit configuration information, the bit configuration information being used to configure one or more of the following information: the number of the first part of bits, the position of the first part of bits, the number of the second part of bits, and the position of the second part of bits.

[0404] Optionally, the second part of bits is the remaining bits in the first indication field except the first part of bits.

[0405] In the case that the downlink control information schedules uplink transmission, the number and position of the first part of bits are the first two or last two bit positions of the first indication field, or the number and position of the first part of bits are the first or last bit position of the first indication field; or,

[0406] In the case that the downlink control information schedules downlink transmission, the number and position of the first part of bits are the first two or last two bit positions of the first indication field, or the number and position of the first part of bits are the first or last bit position of the first indication field; or the number and position of the first part of bits are the first three or last three bit positions of the first indication field.

[0407] Optionally, the downlink control information comprises repetition number allocation indication information, the repetition number allocation indication information being used to determine the repetition number on the source carrier and the target carrier.

[0408] Optionally, in the case that the repetition number on the target carrier is not zero, the data is transmitted across carriers.

[0409] Optionally, the repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

[0410] Optionally, the repetition number allocation indication information is used to indicate the repetition number on the source carrier or the target carrier.

[0411] Optionally, the repetition transmission number corresponding to the value of the repetition transmission number allocation indication information is the repetition transmission number on the source carrier or the target carrier, and the correspondence between different values of the repetition transmission number allocation indication information and the repetition transmission number is a fourth correspondence.

[0412] Optionally, the sending module 610 is further configured to:

[0413] send the fourth correspondence;

[0414] or,

[0415] send a fourth set used to determine the fourth correspondence, the fourth set containing one or more values of the repetition transmission number.

[0416] Optionally, the repetition transmission number allocation indication information is used to indicate a ratio of the repetition transmission number on the source carrier or the target carrier to the total repetition transmission number of the data.

[0417] Optionally, the ratio value corresponding to the value of the repetition transmission number allocation indication information is the ratio of the repetition transmission number on the source carrier or the target carrier to the total repetition transmission number of the data, and the correspondence between different values of the repetition transmission number allocation indication information and the ratio value is a third correspondence.

[0418] Optionally, the method further includes:

[0419] send the third correspondence;

[0420] or,

[0421] send a third set used to determine the third correspondence, the third set containing one or more ratio values.

[0422] In the description of the embodiments of the present application, in order to facilitate the description, the apparatus is described as various modules respectively, and the division of each module is only a logical function division, and the functions of each module can be implemented in the same or multiple software and / or hardware in the implementation of the embodiments of the present application.

[0423] Specifically, the apparatus proposed in this application can be fully or partially integrated onto a single physical entity, or physically separated. These modules can be implemented entirely in software via processing element calls; entirely in hardware; or partially in software via processing element calls and partially in hardware. For example, a module can be a separate processing element or integrated into a chip in an electronic device. The implementation of other modules is similar. Furthermore, these modules can be fully or partially integrated together or implemented independently. During implementation, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0424] For example, these modules can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). Alternatively, these modules can be integrated together as a system-on-a-chip (SOC).

[0425] Furthermore, based on Figure 3 In addition to the method of the illustrated embodiment, an embodiment of this application also proposes an electronic device (terminal). The electronic device includes a memory for storing computer program instructions, a processor for executing the program instructions, and a communication device. When the computer program instructions are executed by the processor, the electronic device is triggered to execute S301, S302, S303, and / or other actions performed by the terminal in the method shown in the embodiment of this application.

[0426] Furthermore, based on Figure 3 In addition to the method of the illustrated embodiment, an embodiment of this application also proposes an electronic device (base station). The electronic device includes a memory for storing computer program instructions, a processor for executing the program instructions, and a communication device. When the computer program instructions are executed by the processor, the processor controls the communication device to execute S300 and S301, and / or other actions performed by the base station in the method shown in the embodiment of this application.

[0427] Figure 7 The diagram shown is a schematic representation of an electronic device structure according to an embodiment of this application. The electronic device (terminal or base station) of this embodiment can employ, for example... Figure 7The component structure is shown. As Figure 7 As shown, the electronic device 700 includes a processor 710, a memory 720, and a communication device 730.

[0428] The memory 720 can be used to store computer program instructions for executing the method shown in the above embodiments, and when the processor 710 executes the computer program instructions stored in the memory 720, the processor 710 controls the communication device 730 to execute the method shown in the above embodiments.

[0429] The processor 710 of the electronic device 700 can be a system on chip (SOC), and the processor can include a central processing unit (CPU) and can further include other types of processors.

[0430] Specifically, the processor 710 can include a CPU, a DSP, a microcontroller, or a digital signal processor, and can further include a GPU, an embedded neural-network processing unit (NPU), and an image signal processor (ISP). The processor 710 can further include necessary hardware accelerators or logic processing hardware circuits such as an ASIC, or one or more integrated circuits for controlling the program execution of the technical solutions of the present application. In addition, the processor 710 can have the function of operating one or more software programs, and the software programs can be stored in a storage medium.

[0431] The memory 720 of the electronic device 700 can be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), or other types of dynamic storage devices that can store information and instructions, and can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including a compact disk, a laser disk, an optical disk, a digital versatile disk, a Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or can also be any computer readable medium capable of carrying or storing desired program codes in the form of instructions or data structures and capable of being accessed by a computer.

[0432] In particular, in an embodiment of the present application, the processor 710 and the memory 720 can be combined into one processing device, more commonly separate components from each other. In particular implementation, the memory 720 can also be integrated in the processor 710, or independent of the processor 710.

[0433] The communication device 730 of the electronic device 700 is configured to implement wireless communication functions. The communication device 730 includes one or more of an antenna 731, a communication module 732, a modem processor 733, and a baseband processor 734.

[0434] The antenna 731 is configured to transmit and receive electromagnetic wave signals. The antenna 731 can include one or more independent antennas, each of which can be used to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antenna.

[0435] The communication module 732 can provide a solution including 2G / 3G / 4G / 5G wireless communication applied to the electronic device 700. The communication module 732 can include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The communication module 732 can receive electromagnetic waves from the antenna 731, and perform filtering, amplification, etc. on the received electromagnetic waves, and transmit them to the modem processor 733 for demodulation. The mobile communication module 732 can also amplify the signals modulated by the modem processor 733, and convert them into electromagnetic waves radiated by the antenna 731. In some embodiments, at least part of the functional modules of the mobile communication module 732 can be arranged in the processor 710.

[0436] The modem processor 733 can include a modulator and a demodulator. The modulator is configured to modulate a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is configured to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor 734 for processing. The low-frequency baseband signal processed by the baseband processor 734 is transmitted to the processor 710. In some embodiments, the modem processor 733 can be an independent device. In other embodiments, the modem processor 733 can be independent of the processor 710, and arranged in the same device as the mobile communication module 732 or other functional modules.

[0437] In some embodiments, the antenna 731 and the communication module 732 of the electronic device 700 are coupled, so that the electronic device 700 can communicate with a network and other devices through wireless communication technologies. The wireless communication technologies can include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technologies, etc. The GNSS can include global positioning system (GPS), global navigation satellite system (GLONASS), beidou navigation satellite system (BDS), quasi-zenith satellite system (QZSS), and / or satellite based augmentation systems (SBAS).

[0438] Further, in actual application scenarios, the method flow of the embodiments shown in the specification can be implemented by an electronic chip installed on an electronic device. Therefore, based on the method of the embodiments shown in the specification, Figure 3 Based on the method of the embodiments shown in the specification, an embodiment of the present application further proposes an electronic chip, which is installed in a base station, and the electronic chip includes a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein when the computer program instructions are executed by the processor, the electronic chip is triggered to perform the actions performed by the base station in the method shown in the embodiments of the present application.

[0439] Further, based on the method of the embodiments shown in the specification, Figure 3The method of the embodiment shown, and an embodiment of the present application further proposes an electronic chip, which is installed in a terminal, and the electronic chip comprises a memory for storing computer program instructions and a processor for executing the computer program instructions, wherein when the computer program instructions are executed by the processor, the electronic chip is triggered to perform the action performed by the terminal in the method shown in the above embodiment of the present application.

[0440] Further, the device, the apparatus, and the module illustrated in the embodiments of the present application can be specifically implemented by a computer chip or an entity, or by a product with certain functions.

[0441] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, an apparatus, or a computer program product. Therefore, the present application can adopt a form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt a form of a computer program product implemented on one or more computer readable storage media containing computer usable program code.

[0442] In several embodiments provided by the present application, any function if realized in a form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application essentially or partially or in part of the technical solutions that make contributions to the prior art can be embodied in a form of a software product, and the computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application.

[0443] Specifically, an embodiment of the present application further provides a computer readable storage medium, which stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiments of the present application.

[0444] An embodiment of the present application further provides a computer program product, which includes a computer program, and when the computer program runs on a computer, the computer is caused to execute the method provided by the embodiments of the present application.

[0445] The embodiments herein make reference to the use of flowcharts and / or block diagrams in a number of arrangements, which are intended to facilitate understanding of the flow, sequence, and / or order of various process steps, but that the execution sequence of the processes can be modified. It will also be noted that each block of the flowchart and / or block diagrams and combinations of blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. Such computational instructions can produce a machine, such that the instructions, which execute via a processor of a computer or other Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks. Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks.

[0446] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the flow Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks. Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks.

[0447] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions that are executed on the computer or other programmable apparatus provide steps for implementing the flow Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks. Figure 1 one or more functions specified in the flow or flows and / or blocks in the block or blocks.

[0448] It should also be noted that, in the embodiments herein, "at least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the cases of A alone, A and B together, and B alone. Wherein A and B can be singular or plural. The character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one of the following" and the like means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, and c can represent a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0449] In the embodiments of the present application, the terms "comprising", "containing" or any other similar words are intended to encompass non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0450] The present application can be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform particular tasks or implement particular abstract data types. The present application can also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communication network. In a distributed computing environment, program modules can be located in both local and remote computer storage media including memory storage devices.

[0451] The various embodiments in the present application are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, for the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0452] Those of ordinary skill in the art can realize that the units and algorithm steps described in the embodiments of the present application can be implemented by electronic hardware, computer software and a combination of electronic hardware and computer software. Whether the functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0453] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, apparatuses and units can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0454] The above is merely specific embodiments of the present application, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A data transmission method, characterized by, The method comprises: receiving downlink control information; in case of cross-carrier scheduling of data transmission, determining a target carrier and a total number of repetitions of the data according to a first indication field in the downlink control information, the total number of repetitions belonging to a first set, the first set comprising at least one value of the total number of repetitions, the at least one value of the total number of repetitions being pre-configured or network-configured; transmitting the data on the source carrier and the target carrier according to the total number of repetitions, the source carrier being a carrier where the downlink control information is located.

2. The method of claim 1, wherein, The method further comprises: determining the target carrier according to a first part of bits in the first indication field in the downlink control information.

3. The method of claim 2, wherein, The method further comprises: determining the target carrier according to a second correspondence relationship between values of the first part of bits and carriers, the second correspondence relationship being a correspondence relationship between different values of the first part of bits and carriers.

4. The method of claim 3, wherein, The method further comprises: receiving the second correspondence relationship configured by the network; or, receiving a second set configured by the network, and determining the second correspondence relationship according to the second set, the second set comprising one or more carriers.

5. The method of claim 2, wherein, The method further comprises: determining the total number of repetitions of the data according to a second part of bits in the first indication field in the downlink control information.

6. The method of claim 5, wherein, The method further comprises: determining the total number of repetitions of the data according to a first correspondence relationship between different values of the second part of bits and values of the total number of repetitions in the first set, the first correspondence relationship being a correspondence relationship between different values of the second part of bits and values of the total number of repetitions in the first set.

7. The method of claim 6, wherein, The method further comprises: receiving the first correspondence relationship configured by the network; or, receiving the first set configured by the network, and determining the first correspondence relationship according to the first set.

8. The method of claim 5, wherein, The method further comprises: receiving bit configuration information, the bit configuration information being used to configure one or more of the following: a number of the first part of bits, a position of the first part of bits, a number of the second part of bits, a position of the second part of bits.

9. The method of claim 8, wherein, The bit configuration information is used to configure the position of the first part of bits and / or the position of the second part of bits. The method further comprises: determining the number of the first part of bits according to a number of alternative carriers of the target carrier, and / or determining the number of the second part of bits according to a number of alternative values of the total number of repetitions of the data.

10. The method of claim 5, wherein, The second part of bits is the remaining bits in the first indication field other than the first part of bits. In the case of the downlink control information scheduling uplink transmission, the number and position of the first part of bits are the first two or last two bits of the first indication field, or the number and position of the first part of bits are the first or last bit of the first indication field; or, In the case of the downlink control information scheduling downlink transmission, the number and position of the first part of bits are the first two or last two bits of the first indication field, or the number and position of the first part of bits are the first or last bit of the first indication field; or, the number and position of the first part of bits are the first three or last three bits of the first indication field.

11. The method according to any one of claims 1 to 10, characterized in that, The downlink control information contains repetition transmission number allocation indication information, and the transmission of the data on the source carrier and the target carrier according to the total repetition transmission number comprises: Determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number and the repetition transmission number allocation indication information; Transmitting the data on the source carrier and the target carrier according to the repetition transmission number on the source carrier and the target carrier.

12. The method of claim 11, wherein, In the case of the repetition transmission number on the target carrier being not zero, the data is cross-carrier transmitted.

13. The method of claim 11, wherein, The repetition transmission number allocation indication information is carried in the cross-carrier transmission indication field in the downlink control information.

14. The method of claim 11, wherein, The repetition transmission number allocation indication information is used for indicating the proportion of the repetition transmission number on the source carrier or the target carrier to the total repetition transmission number of the data, and the determination of the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number and the repetition transmission number allocation indication information comprises: Determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number of the data and the proportion indicated by the repetition transmission number allocation indication information.

15. The method of claim 14, wherein, The method further comprises: According to a third correspondence relationship, determining the proportion value corresponding to the value of the repetition transmission number allocation indication information as the proportion of the repetition transmission number on the source carrier or the target carrier to the total repetition transmission number of the data, and the third correspondence relationship is the correspondence relationship between different values of the repetition transmission number allocation indication information and proportion values.

16. The method of claim 15, wherein, The method further comprises: Receiving the third correspondence relationship configured by the network; Or, Receiving a third set configured by the network, determining the third correspondence relationship according to the third set, and the third set contains one or more proportion values.

17. The method of claim 11, wherein, The repetition transmission number allocation indication information is used for indicating the repetition transmission number on the source carrier or the target carrier; The determination of the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number and the repetition transmission number allocation indication information comprises: Determining the repetition transmission number on the source carrier and the target carrier according to the total repetition transmission number of the data and the repetition transmission number indicated by the repetition transmission number allocation indication information.

18. The method of claim 17, wherein, The method further comprises: According to a fourth correspondence relationship, a value of the repetition transmission number corresponding to the repetition transmission number allocation indication information is determined as the repetition transmission number on the source carrier or the target carrier, the fourth correspondence relationship is a correspondence relationship between different values of the repetition transmission number allocation indication information and the repetition transmission number.

19. The method of claim 18, wherein, The method further comprises: receiving the fourth correspondence relationship configured by the network; or, receiving a fourth set configured by the network, determining the fourth correspondence relationship according to the fourth set, and the fourth set containing one or more values of the repetition transmission number.

20. A data scheduling method, characterized by, comprises: sending downlink control information, wherein in the case of cross-carrier transmission of data scheduled by the downlink control information, a first indication field in the downlink control information is used to indicate a target carrier and a total repetition transmission number of the data, the total repetition transmission number of the data belonging to a first set, the first set including at least one value of the total repetition transmission number, the at least one value of the total repetition transmission number being pre-configured or network-configured.

21. The method of claim 20, wherein, A first part of bits in the first indication field in the downlink control information is used to indicate the target carrier.

22. The method of claim 21, wherein, The value of the first part of bits corresponds to the target carrier, and the correspondence relationship between different values of the first part of bits and carriers is a second correspondence relationship.

23. The method of claim 22, wherein, The method further comprises: sending the second correspondence relationship; or, sending a second set, the second set being used to determine the second correspondence relationship, and the second set containing one or more carriers.

24. The method of claim 21, wherein, A second part of bits in the first indication field in the downlink control information is used to indicate the total repetition transmission number of the data.

25. The method of claim 24, wherein, The value of the second part of bits corresponds to the total repetition transmission number of the data, and the correspondence relationship between different values of the second part of bits and values of the total repetition transmission number in the first set is a first correspondence relationship.

26. The method of claim 25, wherein, The method further comprises: sending the first correspondence relationship; or, sending the first set, the first set being used to determine the first correspondence relationship.

27. The method of claim 24, wherein, The method further comprises: sending bit configuration information, the bit configuration information being used to configure one or more of the following information: the number of the first part of bits, the position of the first part of bits, the number of the second part of bits, and the position of the second part of bits.

28. The method of claim 24, wherein, The second part of bits is the remaining bits in the first indication field except the first part of bits; In the case of uplink transmission scheduled by the downlink control information, the number and position of the first part of bits are the first two or last two bits of the first indication field, or the number and position of the first part of bits are the first or last bit of the first indication field; or, In the case that the downlink control information schedules the downlink transmission, the first part of bits is two bits in front of or behind the first indication field, or the first part of bits is one bit in front of or behind the first indication field; or the first part of bits is three bits in front of or behind the first indication field.

29. The method of any one of claims 20-28, wherein, The downlink control information comprises repetition number allocation indication information, which is used to determine the repetition number on the source carrier and the target carrier.

30. The method of claim 29, wherein, In the case that the repetition number on the target carrier is not zero, the data is transmitted across carriers.

31. The method of claim 29, wherein, The repetition number allocation indication information is carried in a cross-carrier transmission indication field in the downlink control information.

32. The method of claim 29, wherein, The repetition number allocation indication information is used to indicate the repetition number on the source carrier or the target carrier.

33. The method of claim 32, wherein, The repetition number corresponding to the value of the repetition number allocation indication information is the repetition number on the source carrier or the target carrier, and the correspondence between different values of the repetition number allocation indication information and repetition numbers is a fourth correspondence.

34. The method of claim 33, wherein, The method further comprises: sending the fourth correspondence; or, sending a fourth set used to determine the fourth correspondence, the fourth set comprising one or more values of the repetition number.

35. The method of claim 29, wherein, The repetition number allocation indication information is used to indicate the proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data.

36. The method of claim 35, wherein, The proportion value corresponding to the value of the repetition number allocation indication information is the proportion of the repetition number on the source carrier or the target carrier to the total repetition number of the data, and the correspondence between different values of the repetition number allocation indication information and proportion values is a third correspondence.

37. The method of claim 36, wherein, The method further comprises: sending the third correspondence; or, sending a third set used to determine the third correspondence, the third set comprising one or more proportion values.

38. A data transmission device, comprising: The apparatus comprises: a transceiver module for receiving downlink control information; a confirmation module for determining a target carrier and a total repetition number of data according to a first indication field of the downlink control information in the case that the downlink control information schedules the cross-carrier transmission of the data, the total repetition number of data belonging to a first set, the first set comprising at least one value of the total repetition number, the at least one value of the total repetition number being pre-configured or network-configured; the transceiver module is further configured to: transmit the data on a source carrier and the target carrier according to the total repetition number, the source carrier being a carrier where the downlink control information is located.

39. A data scheduling apparatus, characterized by comprising: The apparatus comprises: The sending module is configured to send downlink control information, wherein in the case of cross-carrier transmission of data scheduled by the downlink control information, a first indication field in the downlink control information is used to indicate a target carrier and a total number of repeated transmissions of the data, the total number of repeated transmissions of the data belonging to a first set, the first set including at least one value of the total number of repeated transmissions, the at least one value of the total number of repeated transmissions being pre-configured or network-configured.

40. An electronic chip, characterized by The processor is configured to execute computer program instructions stored on the memory, wherein when the computer program instructions are executed by the processor, the electronic chip is triggered to perform the method of any one of claims 1-19. The processor is configured to execute computer program instructions stored on the memory, wherein when the computer program instructions are executed by the processor, the electronic chip is triggered to perform the method of any one of claims 20-37.

41. An electronic chip, characterized by The electronic device includes a memory for storing computer program instructions, a processor for executing the computer program instructions, and a communication device, wherein when the computer program instructions are executed by the processor, the electronic device is triggered to perform the method of any one of claims 1-19. The electronic device includes a memory for storing computer program instructions, a processor for executing the computer program instructions, and a communication device, wherein when the computer program instructions are executed by the processor, the electronic device is triggered to perform the method of any one of claims 20-37.

42. An electronic device, comprising: The computer readable storage medium stores a computer program, which, when running on a computer, causes the computer to perform the method of any one of claims 1-37.

43. An electronic device, comprising: The computer program product includes a computer program, which, when running on a computer, causes the computer to perform the method of any one of claims 1-37.

44. A computer-readable storage medium, comprising: ​ 45. A computer program product, characterised in that, ​

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