Data transmission method, data transmission apparatus, storage medium, and system

Abstract

The present application provides a data transmission method, a data transmission apparatus, a storage medium, and a system, which can be used in the technical field of communications. In the technical solution provided in the present application, a terminal device can send first information to a network device on the basis of EDT, the first information being scrambled using a first scrambling mode. In addition, the terminal device can also send second information to the network device on the basis of the EDT, the second information being scrambled using a second scrambling mode, and the first scrambling mode being different from the second scrambling mode. The method is conducive to improving the transmission efficiency of the first information and the second information.

Description

Data transmission method, data transmission apparatus, storage medium and system

[0001] This application claims priority to the Chinese patent application No. 202411232828.X, filed on September 3, 2024, and entitled "Data transmission method, data transmission apparatus, storage medium and system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, and in particular to a data transmission method, a data transmission apparatus, a storage medium and a system. BACKGROUND

[0003] In some communication scenarios, in order to reduce the power consumption of a terminal device, the terminal device can use an early data transmission (EDT) technology to send data to a network device in advance.

[0004] A method for a terminal device to send data to a network device using an EDT technology can include: the terminal device first sends information 1 (Msg1) to the network device, the information 1 being used to request to use an EDT function; the network device sends a random access response (RAR) to the terminal device in response to the information 1, the RAR carrying a time-frequency domain resource and a radio network temporary identifier (RNTI), wherein the RNTI can be a temporary cell radio network temporary identifier (TC-RNTI) or a cell radio network temporary identifier (C-RNTI). Correspondingly, after receiving the RAR, the terminal device can scramble information 3 (Msg3) using the TC-RNTI or the C-RNTI, and map the information 3 to the corresponding time-frequency domain resource to send the information 3 to the network device, the information 3 containing data. After receiving the information 3, the network device can detect the information 3 and send indication information to the terminal device that the information 3 has been successfully received.

[0005] Currently, in order to reduce signaling transmission between the terminal device and the network device, the terminal device can not send information 1 to the network device, and the terminal device can not receive the RAR, so that the terminal device can directly send data to the network device through information 3. However, in this method, the terminal device cannot obtain the RNTI, and thus cannot determine which identifier to use to scramble the information 3, and the network device needs to know which identifier is used by the terminal device to scramble the information 3 and decode the information 3 through blind detection, which affects the transmission efficiency of the information 3. SUMMARY

[0006] The present application provides a data transmission method, a data transmission device, a storage medium and a system, which are beneficial to improve the transmission efficiency of the information 3.

[0007] In a first aspect, the present application provides a data transmission method. The method comprises: sending first information based on early data transmission (EDT), the first information being scrambled by a first scrambling manner; and sending second information based on the EDT, the second information being scrambled by a second scrambling manner, the first scrambling manner being different from the second scrambling manner.

[0008] The method of the first aspect can be applied in a terminal device. The terminal device can be a terminal device as a final product, such as a mobile phone complete machine; the terminal device can also be a device (for example, a chip, a chip system, a communication module, or a modem, a component, or a circuit) in the terminal device, which can be installed in the final product terminal; the terminal can also be a device that can be matched with the terminal device, and can also be a logical module or software that can realize all or part of the functions of the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0009] In the method, the terminal device can send the first information or the second information to the network device. The network device can be a network device as a final product, such as a base station; the network device can also be a device (for example, a chip, a chip system, a communication module, or a modem, a component, or a circuit) in the network device, which can be installed in the final product network device; the network device can also be a device that can be matched with the network device, and can also be a logical module or software that can realize all or part of the functions of the network device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0010] Optionally, the first information can be information 3, or can be carried in information 3. The information 3 can be information 3 directly sent by the terminal device to the network device, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when the terminal device does not send information 1 to the network device and does not receive the RAR from the network device.

[0011] Optionally, the second information can also be information 3, or can be carried in information 3. The information 3 can be information 3 sent by the terminal device to the network device when the terminal device transmits data again, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when the terminal device transmits data again without sending information 1 to the network device and without receiving RAR from the network device.

[0012] In the method, the terminal device can scramble the information based on EDT based on the first scrambling manner or the second scrambling manner, so that the network device can know the scrambling manner of the terminal device, and blind detection of the information based on EDT based on the scrambling manner of the terminal device, avoiding the problem of too many blind detection times of the network device, and being beneficial to improving the transmission efficiency of information 3.

[0013] In addition, the scrambling manners used by the first information and the second information are different. In this way, after the network device receives the first information or the second information, whether the information is first transmitted based on EDT can be determined based on the scrambling manner of the information, which is beneficial to subsequent allocation of appropriate time-frequency domain resources for the terminal device, and is beneficial to reducing the conflict probability of subsequent data transmission of the terminal device based on EDT.

[0014] In some possible implementation manners, the first information is used to indicate first data, and the first data is data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state; and the second information is used to indicate second data, and the second data is data transmitted by the terminal device to the network device for the second time in the non-connected state.

[0015] In the present application, for the convenience of description, the data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state can be referred to as the data transmitted by the terminal device for the first time. The data transmitted by the terminal device to the network device for the second time in the non-connected state can be referred to as the data transmitted by the terminal device for the second time, or the data transmitted by the terminal device for the non-first time.

[0016] In the implementation manner, the transmission time sequences of the data indicated by the first information and the second information are different, the first scrambling manner can be used for scrambling the data transmitted by the terminal device for the first time, and the second scrambling manner can be used for scrambling the data transmitted by the terminal device for the second time. In this way, after the network device receives the first information or the second information, whether the information is first transmitted based on EDT can be determined based on the scrambling manner, which is beneficial to subsequent allocation of appropriate time-frequency domain resources for the terminal device, and is beneficial to reducing the conflict probability of subsequent data transmission of the terminal device based on EDT.

[0017] In some possible implementation manners, the first scrambling manner indicates scrambling based on a first temporary network user identifier (RNTI), and the first RNTI includes a system information temporary network user identifier (SI-RNTI) or a temporary network user identifier (EDT-RNTI) for EDT.

[0018] In this implementation manner, the first information can be scrambled by using the first RNTI. In this way, after receiving the first information, the network device can successfully blind detect the first information based on the first RNTI, which is beneficial to improving the transmission efficiency of the first information.

[0019] In some possible implementation manners, the method further includes: receiving third information, the third information being used to indicate resource-related information of the EDT, and the resource-related information of the EDT including one or more of the following information: a starting position in a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink resource units (RUs) for transmitting the first information by a single user, a repetition number of the first information, or a time for next data transmission.

[0020] Optionally, the third information can be a system information block (SIB).

[0021] In this method, after receiving the third information, the terminal device can determine time-frequency domain resources required for transmitting the first information and the second information based on the third information, and transmit information or data based on the time-frequency domain resources, which is beneficial to guaranteeing the reliability of transmission of the first information and the second information.

[0022] In some possible implementation manners, the RU for transmitting the first information is determined based on the third information.

[0023] In this way, the RU for transmitting the first information is different when the length of the time domain resource / frequency domain resource indicated by the third information is different, and / or the number of RUs for transmitting the first information by a single user is different, and / or the repetition number of the first information is different.

[0024] That is, the RU for transmitting the first information is associated with the third information received by the terminal device, and the terminal device can determine the RU for transmitting the first information based on the received third information, which is beneficial to guaranteeing the reliability of transmission of the first information.

[0025] In some possible implementation manners, when the length of the time domain resource indicated by the third information is 32 milliseconds (ms), the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs for transmitting the first information by a single user is 1, and the repetition number of the first information is 1, the RU for transmitting the first information includes all or part of the first RUs.

[0026] The first RU comprises at least one type of RU, and different types of RU in the at least one type of RU in the first RU do not coincide in time-frequency domain resources.

[0027] In this implementation manner, the terminal device can select a RU for transmitting the first information from the first RU, which is beneficial to guarantee the reliability of the first information transmission.

[0028] In some possible implementation manners, when the third information indicates that the length of the time domain resource is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by the single user is 2, and the repetition number of the first information is 1, the RU for transmitting the first information comprises all or part of RUs in the second RU.

[0029] The second RU comprises at least one type of RU, and different types of RU in the at least one type of RU in the second RU do not coincide in time-frequency domain resources.

[0030] In this implementation manner, the terminal device can select a RU for transmitting the first information from the second RU, which is beneficial to guarantee the reliability of the first information transmission.

[0031] In some possible implementation manners, when the third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by the single user is 2, and the repetition number of the first information is 2, the RU for transmitting the first information comprises all or part of RUs in the third RU.

[0032] The third RU comprises at least one type of RU, and different types of RU in the at least one type of RU in the third RU do not coincide in time-frequency domain resources.

[0033] In this implementation manner, the terminal device can select a RU for transmitting the first information from the third RU, which is beneficial to guarantee the reliability of the first information transmission.

[0034] In some possible implementation manners, each RU in the RU for transmitting the first information corresponds to a different number respectively, and RUs between different numbers do not overlap in time-frequency domain resources.

[0035] In this implementation manner, the terminal device can further send, to the network device, a number of the RU for transmitting the first information. In this way, the network device can determine time-frequency domain resources for transmitting the first information based on the number, to receive the first information on the corresponding time-frequency domain resources, which is beneficial to guarantee the reliability of the first information transmission.

[0036] In some possible implementation manners, the third information further comprises the SI-RNTI.

[0037] In this implementation manner, the terminal device can determine the SI-RNTI based on the third information, and scramble the first information by using the SI-RNTI, which is beneficial to guarantee the transmission efficiency of the first information.

[0038] In some possible implementation manners, the EDT-RNTI is determined based on the third information.

[0039] In this implementation manner, the terminal device can determine the EDT-RNTI based on the third information, and scramble the first information by using the EDT-RNTI, which is beneficial to guarantee the transmission efficiency of the first information.

[0040] In some possible implementation manners, when the third information is used to indicate a time of next transmission of data, the first information is further used to indicate the time of next transmission of data by the terminal device.

[0041] The method further comprises: receiving fourth information, the fourth information being used to indicate an RU required for next transmission of data and the second scrambling manner, the second scrambling manner indicating scrambling based on a second RNTI, the second RNTI comprising a cell temporary network user identifier for EDT (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI), and the second information being transmitted based on the RU required for the next transmission of data.

[0042] In this implementation manner, the second information can be scrambled by using the second RNTI. In this way, after receiving the second information, the network device can successfully perform blind detection on the second information based on the second RNTI, which is beneficial to improve the transmission efficiency of the second information.

[0043] In a second aspect, the present application provides a data transmission method, which can comprise: receiving first information, the first information being transmitted based on early data transmission (EDT), and the first information being scrambled by using a first scrambling manner; and receiving second information, the second information also being transmitted based on EDT, and the second information being scrambled by using a second scrambling manner, the first scrambling manner being different from the second scrambling manner.

[0044] In some possible implementation manners, the first information is used to indicate first data, the first data being data transmitted by a terminal device to a network device for the first time after the terminal device enters an unconnected state; and the second information is used to indicate second data, the second data being data transmitted by the terminal device to the network device for the second time in the unconnected state.

[0045] In some possible implementation manners, the first scrambling manner indicates scrambling based on a first temporary network user identifier (RNTI), and the first RNTI includes a system information temporary network user identifier (SI-RNTI) or a temporary network user identifier (EDT-RNTI) for EDT.

[0046] In some possible implementation manners, the method further includes: sending third information, the third information being used to indicate resource-related information of the EDT, and the resource-related information of the EDT including one or more of the following information: a starting position of a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink resource units (RUs) for a single user to send the first information, a repetition number of the first information, or a time of next data transmission.

[0047] In some possible implementation manners, the RU for transmitting the first information is determined based on the third information.

[0048] In some possible implementation manners, the RU for transmitting the first information is different when the length of the time domain resource / frequency domain resource indicated by the third information is different, and / or the number of RUs for a single user to send the first information is different, and / or the repetition number of the first information is different.

[0049] In some possible implementation manners, when the length of the time domain resource indicated by the third information is 32 milliseconds (ms), the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs for a single user to send the first information is 1, and the repetition number of the first information is 1, the RU for transmitting the first information includes all or part of RUs in a first RU.

[0050] The first RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the first RU do not overlap in time-frequency domain resources.

[0051] In some possible implementation manners, when the length of the time domain resource indicated by the third information is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs for a single user to send the first information is 2, and the repetition number of the first information is 1, the RU for transmitting the first information includes all or part of RUs in a second RU.

[0052] The second RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the second RU do not overlap in time-frequency domain resources.

[0053] In some possible implementation manners, the third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of the RUs in which the single user transmits the first information is 2, and the number of repetitions of the first information is 2, and the RUs for transmitting the first information include all or part of RUs in a third RU.

[0054] The third RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the third RU do not overlap in time-frequency domain resources.

[0055] In some possible implementation manners, each of the RUs for transmitting the first information corresponds to a different number, and the RUs with different numbers do not overlap in time-frequency domain resources.

[0056] In some possible implementation manners, the third information further includes the SI-RNTI.

[0057] In some possible implementation manners, the EDT-RNTI is determined based on the third information.

[0058] In some possible implementation manners, when the third information is used to indicate a time of next data transmission, the first information is further used to indicate the time of next data transmission of the terminal device.

[0059] The method further includes: transmitting fourth information, the fourth information being used to indicate RUs required for next data transmission and the second scrambling mode, the second scrambling mode indicating scrambling based on a second RNTI, the second RNTI including a cell temporary network user identifier for EDT, EDT-C-RNTI, or a cell radio network temporary identifier, C-RNTI, and the number of terminal devices for transmission in the RUs required for next data transmission being less than the number of terminal devices for transmission in other RUs.

[0060] In some possible implementation manners, after the first information is received, the method further includes: performing blind detection on the first information based on the first RNTI and the second RNTI.

[0061] After the second information is received, the method further includes: performing blind detection on the second information based on the first RNTI and the second RNTI.

[0062] In a third aspect, the present application provides a data transmission apparatus, which can be used in the terminal device of the first aspect. The data transmission apparatus can be a terminal device, or a device (for example, a chip, a chip system, or a circuit) in the terminal device, or a logic module or software capable of realizing all or part of the functions of the terminal device. In a possible implementation, the data transmission apparatus includes modules or units for implementing the method in the first aspect and any possible implementation of the first aspect. For example, the data transmission apparatus can include modules or units corresponding to the method described in the first aspect, which can be hardware circuits, software, or a combination of hardware circuits and software. Alternatively, each module or unit can realize the corresponding function by executing a computer program.

[0063] As an example, the data transmission apparatus can include a sending module.

[0064] The sending module can be configured to send first information based on early data transmission (EDT), and the first information is scrambled by using a first scrambling manner; and send second information based on EDT, and the second information is scrambled by using a second scrambling manner, wherein the first scrambling manner is different from the second scrambling manner.

[0065] In a possible design, the first information is used to indicate first data, and the first data is data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state.

[0066] The second information is used to indicate second data, and the second data is data transmitted by the terminal device to the network device again when the terminal device is in the non-connected state.

[0067] In a possible design, the first scrambling manner indicates scrambling based on a first temporary network user identifier (RNTI), and the first RNTI includes a system information temporary network user identifier (SI-RNTI) or a temporary network user identifier for EDT (EDT-RNTI).

[0068] In a possible design, the data transmission method can further include a receiving module.

[0069] The receiving module can be configured to receive third information, and the third information is used to indicate resource-related information of the EDT, and the resource-related information of the EDT includes one or more of the following information: a starting position in a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink resource units (RUs) for transmitting the first information by a single user, a number of repetitions of the first information, or a time for next data transmission.

[0070] In a possible design, the RU used for transmitting the first information is determined based on the third information.

[0071] wherein the RUs for transmitting the first information are different when the lengths of the time domain resources / frequency domain resources indicated by the third information are different, and / or the numbers of RUs in which the single user transmits the first information are different, and / or the repetition numbers of the first information are different.

[0072] In one possible design, the third information indicates that the length of the time domain resource is 32 milliseconds (ms), the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs in which the single user transmits the first information is 1, and the repetition number of the first information is 1, and the RUs for transmitting the first information include all or part of RUs in a first RU.

[0073] The first RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the first RU do not overlap in time-frequency domain resources.

[0074] In one possible design, the third information indicates that the length of the time domain resource is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs in which the single user transmits the first information is 2, and the repetition number of the first information is 1, and the RUs for transmitting the first information include all or part of RUs in a second RU.

[0075] The second RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the second RU do not overlap in time-frequency domain resources.

[0076] In one possible design, the third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs in which the single user transmits the first information is 2, and the repetition number of the first information is 2, and the RUs for transmitting the first information include all or part of RUs in a third RU.

[0077] The third RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the third RU do not overlap in time-frequency domain resources.

[0078] In one possible design, each of the RUs for transmitting the first information corresponds to a different number, and RUs with different numbers do not overlap in time-frequency domain resources.

[0079] In one possible design, the third information further includes the SI-RNTI.

[0080] In a possible design, the EDT-RNTI is determined based on the third information.

[0081] In a possible design, when the third information is used to indicate a time for next data transmission, the first information is further used to indicate the time for the terminal device to perform next data transmission.

[0082] The receiving module can further be configured to receive fourth information, the fourth information being used to indicate an RU required for next data transmission and the second scrambling manner, the second scrambling manner indicating scrambling based on a second RNTI, the second RNTI including a cell temporary network user identifier for EDT (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI), and the second information being transmitted based on the RU required for the next data transmission.

[0083] In a fourth aspect, a data transmission apparatus is provided. The data transmission apparatus can be used in the network device of the second aspect. The data transmission apparatus can be the network device, or a device (for example, a chip, a chip system, or a circuit) in the network device, or a logic module or software capable of implementing all or part of the functions of the network device. In a possible implementation, the data transmission apparatus includes modules or units for implementing the method in the second aspect and any possible implementation of the second aspect. For example, the data transmission apparatus can include modules or units corresponding to the method described in the second aspect. The modules or units can be hardware circuits, software, or a combination of hardware circuits and software. Optionally, each module or unit can implement corresponding functions by executing a computer program.

[0084] As an example, the data transmission apparatus can include a receiving module.

[0085] The receiving module can be configured to receive first information, the first information being based on early data transmission (EDT) transmission and scrambled by using a first scrambling manner; and receive second information, the second information also being based on EDT transmission and scrambled by using a second scrambling manner, the first scrambling manner being different from the second scrambling manner.

[0086] In a possible design, the first information is used to indicate first data, the first data being data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state.

[0087] The second information is used to indicate second data, the second data being data transmitted by the terminal device to the network device for the second time in the non-connected state.

[0088] In one possible design, the first scrambling manner indicates scrambling based on a first temporary network user identification (RNTI), which includes a system information temporary network user identification (SI-RNTI) or a temporary network user identification for EDT (EDT-RNTI).

[0089] In one possible design, the data transmission apparatus can include a transmitting module.

[0090] The transmitting module can be configured to transmit third information, which is used to indicate resource-related information of the EDT, including one or more of the following: a starting position in time domain / frequency domain, a length of time domain resource / frequency domain resource, a number of uplink resource units (RUs) for a single user to transmit the first information, a repetition number of the first information, or a time for next data transmission. The RUs used to transmit the first information are determined based on the third information.

[0091] When the length of time domain resource / frequency domain resource indicated by the third information is different, and / or the number of RUs for a single user to transmit the first information is different, and / or the repetition number of the first information is different, the RUs used to transmit the first information are different.

[0092] In one possible design, when the length of time domain resource indicated by the third information is 32 milliseconds (ms), the length of frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs for a single user to transmit the first information is 1, and the repetition number of the first information is 1, the RUs used to transmit the first information include all or part of RUs in a first RU.

[0093] The first RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the first RU do not overlap in time-frequency domain resource.

[0094] In one possible design, when the length of time domain resource indicated by the third information is 64 ms, the length of frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs for a single user to transmit the first information is 2, and the repetition number of the first information is 1, the RUs used to transmit the first information include all or part of RUs in a second RU.

[0095] The second RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the second RU do not overlap in time-frequency domain resource.

[0096] In a possible design, the third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of the RUs in which the single user transmits the first information is 2, and the number of repetitions of the first information is 2, and the RUs used for transmitting the first information include all or part of RUs in a third RU.

[0097] The third RU includes at least one type of RU, and different types of RUs in the at least one type of RU do not overlap in time-frequency domain resources.

[0098] In a possible design, each of the RUs used for transmitting the first information corresponds to a different number, and RUs with different numbers do not overlap in time-frequency domain resources.

[0099] In a possible design, the third information further includes the SI-RNTI.

[0100] In a possible design, the EDT-RNTI is determined based on the third information.

[0101] In a possible design, when the third information is used to indicate a time for next transmission of data, the first information is further used to indicate the time for the terminal device to next transmit data.

[0102] The sending module can also be configured to send fourth information, where the fourth information is used to indicate RUs required for next transmission of data and the second scrambling manner, the second scrambling manner indicates scrambling based on a second RNTI, the second RNTI includes a cell temporary network user identifier for EDT (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI), and the number of terminal devices for transmission in the RUs required for next transmission of data is less than the number of terminal devices for transmission in other RUs.

[0103] In a possible design, the data transmission apparatus can further include a processing module.

[0104] The processing module can be configured to, after the first information is received, perform blind detection on the first information based on a first RNTI and a second RNTI.

[0105] The processing module can be configured to, after the second information is received, perform blind detection on the second information based on the first RNTI and the second RNTI.

[0106] In a fifth aspect, the present application provides a data transmission apparatus, comprising a processor configured to cause the apparatus to perform the method in any one of the first aspect to the second aspect and any possible implementation thereof by executing computer programs (or computer executable instructions) stored in a memory and / or by a logic circuit.

[0107] In a possible implementation, the apparatus further comprises a memory.

[0108] In a possible implementation, the processor and the memory are integrated together.

[0109] In another possible implementation, the memory is located outside the data transmission apparatus.

[0110] In a possible implementation, the data transmission apparatus further comprises a communication interface configured to enable the data transmission apparatus to communicate with other devices, such as transmitting or receiving data and / or signals. For example, the communication interface can be a transceiver, a circuit, a bus, a module or other types of communication interface.

[0111] In a sixth aspect, the present application provides a computer readable storage medium storing computer programs or instructions for a data transmission apparatus to execute, which when run on the data transmission apparatus, cause the method in any one of the first aspect to the second aspect and any possible implementation thereof to be implemented.

[0112] In a seventh aspect, the present application provides a computer program product containing instructions, which when run on a data transmission apparatus, cause the method in any one of the first aspect to the second aspect and any possible implementation thereof to be implemented.

[0113] In an eighth aspect, the present application provides a communication system comprising a terminal device and a network device. The terminal device is configured to perform the method in the first aspect and any possible implementation of the first aspect, and the network device is configured to perform the method in the second aspect and any possible implementation of the second aspect.

[0114] It can be understood that the effects obtainable by the second aspect to the eighth aspect can refer to the description in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0115] FIG. 1 is a communication system 100 to which embodiments of the present application can be applied;

[0116] FIG. 2 is a schematic diagram of an NTN communication system to which embodiments of the present application can be applied;

[0117] FIG. 3 is a schematic diagram of a data transmission method according to an embodiment of the present application;

[0118] FIG. 4 is a schematic diagram of a type of first RU according to an embodiment of the present application;

[0119] FIG. 5 is a schematic diagram of a type of second RU according to an embodiment of the present application;

[0120] FIG. 6 is a schematic diagram of a type of third RU according to an embodiment of the present application;

[0121] FIG. 7 is a schematic diagram of numbering of the first RU according to an embodiment of the present application;

[0122] FIG. 8 is a schematic diagram of numbering of the second RU according to an embodiment of the present application;

[0123] FIG. 9 is a schematic diagram of numbering of the third RU according to an embodiment of the present application;

[0124] FIG. 10 is a schematic diagram of a data transmission method according to another embodiment of the present application;

[0125] FIG. 11 is a schematic diagram of resource usage of a plurality of terminal devices at a target time according to an embodiment of the present application;

[0126] FIG. 12 is a schematic diagram of a data transmission method according to yet another embodiment of the present application;

[0127] FIG. 13 is a schematic diagram of a data transmission method according to yet another embodiment of the present application;

[0128] FIG. 14 is a schematic diagram of a data transmission apparatus according to an embodiment of the present application;

[0129] FIG. 15 is a schematic diagram of a data transmission apparatus according to another embodiment of the present application;

[0130] FIG. 16 is a schematic diagram of a data transmission apparatus according to yet another embodiment of the present application. DETAILED DESCRIPTION

[0131] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0132] In order to clearly describe the technical solutions in the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using “first”, “second”, etc. For example, the first information and the second information are only used to distinguish different information, and the order is not limited. Those skilled in the art can understand that “first”, “second”, etc. do not limit the quantity and execution order, and “first”, “second”, etc. also do not necessarily mean different.

[0133] It should be noted that, in the present application, the words "exemplarily" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplarily" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words "exemplarily" or "for example" are used to present the relevant concept in a specific manner.

[0134] In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b and (or) 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.

[0135] In the embodiments of the present application, the descriptions such as "when", "in the case of", "if" and "if" all refer to the device making corresponding processing under certain objective circumstances, not limited to time, and the device does not necessarily have a judgment action when it is implemented, nor does it mean that there are other limitations.

[0136] The technical solutions of the present application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, 5th generation (5th generation, 5G) communication system, such as 5G new radio (new radio, NR) communication system, or communication system evolved after 5G, such as future communication network system. The method provided in the embodiments of the present application can also be applied to wireless fidelity (wireless WiFi) system, long range Internet of Things (long range, LoRa) system or vehicle Internet of Things system. The method provided in the embodiments of the present application can also be applied to satellite communication system, or non-terrestrial network (non-terrestrial networks, NTN) communication system. Wherein, the satellite communication system can be integrated with the above communication system, such as the NTN in the 5G communication system or the NTN in the future communication system, which is not limited in the present application.

[0137] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile terminal, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device, etc.

[0138] The terminal device can be a device that provides voice / data connectivity to a user, such as a handheld device with wireless connectivity, a vehicle-mounted device, etc. Currently, some examples of terminal devices include a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved public land mobile network (PLMN), or a terminal device in satellite communication, such as NTN communication, etc. The present application is not limited thereto.

[0139] By way of example and without limitation, in this application, the terminal device can be a terminal device in an internet of things (IoT) system. The internet of things is an important component of future information technology development, and its main technical feature is to connect objects through communication technology and network to realize the intelligent network of man-machine interconnection and object-object interconnection. By way of example, the terminal device in the embodiments of the present application can be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also can realize powerful functions through software support and data interaction, cloud interaction. The general wearable smart device includes a full function, a large size, and can realize complete or partial functions without relying on a smart phone, such as a smart watch or smart glasses, and focuses on a certain application function and needs to cooperate with other devices such as a smart phone, such as various smart wristbands, smart jewelry, and the like.

[0140] By way of example and without limitation, in the embodiments of the present application, the terminal device can also be a terminal device in machine type communication (MTC). In addition, the terminal device can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. built-in as one or more components or units in a vehicle, and the vehicle can implement the method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit, etc. Therefore, the embodiments of the present application can also be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution-vehicle (LTE-V), vehicle-to-vehicle (V2V) technology, etc.

[0141] It should be noted that the terminal device in the embodiments of the present application can be a terminal as a final product, such as a mobile phone complete machine, and the terminal device can also be a device for realizing the function of the terminal, or a device capable of supporting the terminal to realize the function, such as a chip system, or a communication module, or a modem, or a component, etc. The chip system in the embodiments of the present application can be composed of a chip, or can include a chip and other discrete devices.

[0142] The network device involved in the present application can be a device in communication with a terminal device. The network device can also be referred to as an access network device or a radio access network device. The network device can be a transmission reception point (TRP), an evolved NodeB (eNB or eNodeB) in an LTE system, a home evolved NodeB (home eNB) or a home NodeB (HNB), a baseband unit (BBU), a wireless controller in a cloud radio access network (CRAN) scenario, or a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a 5G network, or a network device in a future evolved PLMN network, and the like. The network device can also be an access point (AP) in a WLAN, a gNB in an NR system, a city base station, a micro base station, a pico base station, a femto base station, a satellite communication base station in NTN communication, or a satellite with base station functions, and the like. The present application does not limit the network device.

[0143] In a network structure, a network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a radio access network (RAN) device including a CU node and a DU node, or a RAN device including a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node) and a DU node.

[0144] A network device provides services for a cell, and a terminal device communicates with the cell through transmission resources (for example, frequency domain resources or spectrum resources) allocated by the network device. The cell can belong to a macro base station (for example, a macro eNB or a macro gNB, etc.), or a base station corresponding to a small cell. The small cell can include a metro cell, a micro cell, a pico cell, a femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

[0145] It should be noted that the network device in the embodiments of the present application can be a network device as a final product (such as a base station), a device for implementing the functions of the network device final product, or a device capable of supporting the network device final product to implement the functions, such as a chip system, or a communication module, or a modem, or a component, etc., which can be installed in the network device final product. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0146] In the embodiments of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes central processing units (CPUs), memory management units (MMUs), memories (also known as main memories), and the like. The operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems, etc. The application layer includes browsers, address books, word processing software, instant messaging software, and the like. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of the present application, as long as the execution subject can communicate according to the method provided in the embodiments of the present application. For example, the execution subject of the method provided in the embodiments of the present application can be a terminal device or a network device, or a functional module capable of executing a program in the terminal device or the network device.

[0147] In addition, each aspect or feature of the embodiments of the present application can be implemented as a method, device, or article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" used in the present application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable media" can include, but is not limited to, various types of media that are capable of storing, containing, and / or carrying instructions and / or data.

[0148] To facilitate understanding of the embodiments of the present application, first, the communication system applicable to the embodiments of the present application is described in detail in combination with FIG. 1 and FIG. 2.

[0149] FIG. 1 shows a communication system 100 to which the embodiments of the present application can be applied. As shown in FIG. 1, the communication system 100 can include at least one network device, for example, the network device 110 shown in FIG. 1, and can include at least one terminal device, for example, the terminal device 120 shown in FIG. 1. The network device 110 and the terminal device 120 can communicate with each other through a wireless link. Each communication device, such as the network device 110 or the terminal device 120, can be configured with multiple antennas, which can include at least one transmit antenna for transmitting a signal and at least one receive antenna for receiving a signal. In addition, each communication device additionally includes a transmitter chain and a receiver chain, which can include a plurality of components (such as a processor, a modulator, a multiplexer, a demodulator, a demultiplexer, or an antenna, etc.) related to signal transmission and signal reception, which can be understood by those skilled in the art. Therefore, the network device 110 and the terminal device 120 can communicate through multi-antenna technology.

[0150] FIG. 1 exemplarily shows one network device and one terminal device. Alternatively, the communication system 100 can include a plurality of network devices and each network device can include other numbers of terminal devices within its coverage, which is not limited by the embodiments of the present application.

[0151] The communication system 100 of the embodiments of the present application can include satellite communication, inter-satellite communication, air to ground (ATG) network, high altitude platform station (HAPS), unmanned aerial vehicle (UAV), and other non-terrestrial network (NTN) communication scenarios, which are not limited by the embodiments of the present application. The NTN communication system provides seamless coverage for terminal devices by deploying all or part of the functions of the network device (such as a base station) on a high altitude platform or a satellite, and the high altitude platform or the satellite is less affected by natural disasters, thereby improving the reliability of the communication system.

[0152] At present, in some important fields such as space communication, aviation communication, maritime communication, and military communication, satellites play an irreplaceable role. Satellite communication has the characteristics of long communication distance, large coverage area, and flexible networking, and can provide services for fixed terminals and various mobile terminals.

[0153] Below, taking the network device as a base station and the base station being deployed on a satellite or the network device being a satellite with base station functions as an example, an NTN communication system to which the application can be applied is exemplarily described.

[0154] FIG. 2 shows a schematic diagram of an NTN communication system to which the embodiments of the application can be applied. The various network elements in FIG. 2 and the interfaces between the various network elements are described as follows:

[0155] 1. Terminal device: includes a new radio access supported mobile device, which can access a satellite network through a new radio access and initiate a call, online service and the like.

[0156] 2. Base station: mainly provides a radio access service, schedules radio resources to access terminal devices, and provides a reliable radio transmission protocol and a data encryption protocol and the like.

[0157] 3. Core network device: can provide user access control, mobility management, session management, user security authentication, charging and the like. The core network device includes multiple functional network elements and can be divided into control plane and data plane functional entities. As shown in FIG. 2, the core network device can specifically include an access and mobility management function (AMF) network element, a session management function (SMF) network element and a user plane function (UPF) network element.

[0158] Among them, the AMF network element is mainly used for mobility management and access management and the like, and can be used to implement other functions in the mobility management entity (MME) function except for session management, for example, access authorization (or authentication) and the like. The SMF network element is mainly used for session management, IP address allocation and management of terminal devices, selection of manageable user plane functions, termination of policy control or charging function interfaces and the like. The UPF network element is mainly responsible for managing transmission of user plane data, traffic statistics and the like.

[0159] 4. Ground station: is responsible for forwarding signaling and service data between the base station and the core network device.

[0160] 5. Air interface: a wireless link between the terminal device and the base station.

[0161] 6. Xn interface: an interface between the base stations, mainly used for signaling interaction such as handover.

[0162] 7. NG interface: the interface between the base station and the core network device, mainly used for interacting with the non-access layer (NAS) signaling of the core network device, and the user's service data.

[0163] 8. Data network: can be a data server, responsible for providing service data.

[0164] In the system shown in (a) of FIG. 2, the terminal device on the ground accesses the network through the air interface, and the base station can be deployed on the ground and connected to the ground station in communication with the satellite, and connected to the ground core network device through a wireless link.

[0165] In the system shown in (b) of FIG. 2, the terminal device on the ground accesses the network through the air interface, and the base station is deployed on the satellite, and connected to the ground core network device through a wireless link.

[0166] In the system shown in (c) of FIG. 2, the satellite is connected to the ground station through a wireless link, and the ground station is connected to the ground base station through a wired or wireless connection with the core network. There is a wireless link between the satellites. If the satellite only has a transparent forwarding function (i.e., the corresponding base station is deployed on the ground), the satellite-to-satellite link only implements transparent forwarding. If the base station or part of the base station function is deployed on the satellite, the satellite-to-satellite link can complete the signaling interaction and data transmission between the base stations.

[0167] It can be understood that the NTN communication system shown in FIG. 2 can be integrated with various communication systems. For example, in the scenario of integrating the NTN communication system with the 5G system, the base station shown in FIG. 2 can be a 5G base station, and the air interface shown in FIG. 2 can be a 5G air interface.

[0168] In some communication scenarios, such as the NTN narrow band-internet of things (NB-IoT) scenario, in order to reduce the power consumption of the terminal device, the terminal device can use the EDT technology to send data to the network device in advance.

[0169] A method for a terminal device to send data to a network device using EDT technology can include: the terminal device first sends information 1 (Msg1) to the network device, the information 1 being used to request the use of EDT function; the network device sends a RAR to the terminal device in response to the information 1, the RAR carrying time-frequency domain resources and RNTI, wherein the RNTI can be TC-RNTI or C-RNTI. Correspondingly, after receiving the RAR, the terminal device can scramble information 3 (Msg3) using TC-RNTI or C-RNTI, and map the information 3 to the corresponding time-frequency domain resources to send the information 3 to the network device, the information 3 containing data. After receiving the information 3, the network device can detect the information 3 and send an indication information to the terminal device that the information 3 has been received successfully.

[0170] Currently, in order to reduce signaling transmission between the terminal device and the network device, the terminal device can not send information 1 to the network device, and the terminal device can not receive the RAR, so that the terminal device can directly send data to the network device through information 3. However, in this method, the terminal device cannot obtain the RNTI, and thus cannot determine which identifier to use to scramble information 3. The network device needs to know which identifier the terminal device uses to scramble information 3 and decode information 3 through blind detection, which affects the transmission efficiency of information 3.

[0171] In the technical solution of the present application, when the terminal device directly sends data to the network device through information 3, the terminal device can scramble information 3 through a first scrambling method. The first scrambling method can indicate scrambling based on a first RNTI. The first RNTI can include a system information RNTI (SI-RNTI) or a temporary network user identifier for EDT (EDT-RNTI).

[0172] Further, when the terminal device directly sends data to the network device again through information 3, the terminal device can scramble information 3 through a second scrambling method. The second scrambling method can indicate scrambling based on a second RNTI. The second RNTI can include an EDT cell temporary network user identifier (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI).

[0173] In this method, after receiving the data, the network device can use the first RNTI and the second RNTI to blindly detect information 3 to obtain the data carried in information 3.

[0174] In the technical solution of the present application, the terminal device can be a terminal device as a final product, such as a complete mobile phone; the terminal device can also be a device (for example, a chip, a chip system, a communication module, or a modem, a component, or a circuit) in the terminal device, which can be installed in the final product terminal; the terminal can also be a device that can be matched with the terminal device, and can also be a logic module or software that can realize all or part of the functions of the terminal device. In the embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In the future, the terminal can be taken as an example for description in the embodiment of the present application.

[0175] In the technical solutions of the present application, the network device can be a network device as a final product, such as a base station; the network device can also be a device (for example, a chip, a chip system, a communication module, or a modem, a component, or a circuit) in the network device, which can be installed in the final product network device; the network device can also be a device that can be matched with the network device, and can also be a logic module or software that can implement all or part of the functions of the network device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. In the following, the embodiments of the present application can be described by taking the network device as an example.

[0176] In the method, the terminal device can scramble the information 3 using the first RNTI or the second RNTI, and the network device can also perform blind detection on the information 3 using the first RNTI or the second RNTI, so as to avoid the case that the terminal device cannot determine which identifier to use to scramble the information 3, and also avoid the case that the network device cannot determine which identifier to use to perform blind detection on the information 3, and the number of blind detection times is too large, thereby improving the transmission efficiency of the information 3.

[0177] Next, the present application will be described in detail in combination with FIG. 3 to FIG. 16.

[0178] FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present application.

[0179] S301, the terminal device sends first information to the network device based on EDT, and the first information is scrambled using a first scrambling manner. Correspondingly, the network device receives the first information.

[0180] In the method, the terminal device can be any one of the terminal devices shown in FIG. 1 or FIG. 2. For example, the terminal device can be a terminal device supporting satellite communication.

[0181] Optionally, the terminal device can be a terminal device in a non-connected state, for example, can be a terminal device in an idle state or a terminal device in a deactivated state.

[0182] In the method, the network device can be any one of the network devices shown in FIG. 1 or FIG. 2. For example, the network device can be a 5G satellite base station, an LTE satellite base station, a satellite ground station, etc.

[0183] In the method, the first information can be used to indicate first data, and the first data can be data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state.

[0184] In the present application, for the convenience of description, the data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state can be referred to as the data transmitted by the terminal device for the first time.

[0185] In the embodiments of the present application, the data transmitted by the terminal device to the network device can also have other names, such as user data, etc. For example, the first data can also be referred to as first user data.

[0186] Optionally, the first information can be information 3 or can be carried in information 3. The information 3 can be information 3 directly transmitted by the terminal device to the network device, or in other words, the information 3 can be information 3 transmitted by the terminal device to the network device when the terminal device does not transmit information 1 to the network device and does not receive RAR from the network device.

[0187] In the method, the first scrambling mode can indicate scrambling based on the first RNTI. In the embodiments of the present application, the first information scrambled by the first scrambling mode can be understood as the first information scrambled by the first RNTI.

[0188] In the embodiments of the present application, the first RNTI can include SI-RNTI or EDT-RNTI.

[0189] Optionally, when the first RNTI includes SI-RNTI, the first RNTI can be broadcast by the network device.

[0190] For example, before the terminal device transmits the first information to the network device, the terminal device can receive third information broadcast by the network device, and the third information can be used to indicate resource-related information of EDT.

[0191] Optionally, the third information can be a system information block (SIB).

[0192] Optionally, the resource-related information of EDT can include one or more of the following information: a starting position in time domain / frequency domain, a length of time domain resource / frequency domain resource, a number N of uplink resource units (RUs) for a single user to transmit the first information RU , a repetition number N of the first information Rep , or a time of next data transmission.

[0193] The starting position in time domain can be indicated by a starting time domain symbol. For example, it can be indicated by a starting orthogonal frequency division multiplexing (OFDM) symbol.

[0194] Optionally, the length of the time domain resource can be indicated by a starting time domain symbol and an ending time domain symbol. Alternatively, the length of the time domain resource can also be indicated by the number of time domain symbols or the number of frames.

[0195] The starting position of the frequency domain can be indicated by a bandwidth part (BWP) starting position.

[0196] Optionally, the starting position of the frequency domain can be indicated by a bandwidth and / or a number of subcarriers.

[0197] The time of next transmission of data in the third information can be used to indicate the time of next transmission of data by the terminal device.

[0198] Optionally, the terminal device can transmit data to the network device multiple times. When the terminal device transmits data to the network device multiple times, after receiving the third information, the terminal device can transmit information indicating the time of next transmission of data by the terminal device to the network device, and the information can be carried in the first information. Alternatively, the first information transmitted by the terminal device to the network device can also be used to indicate the time of next transmission of data by the terminal device.

[0199] The time of next transmission of data can be indicated by a specific time or by a time interval, which can represent the time interval between the time of next transmission of data and the time of current transmission of data.

[0200] In the method, after receiving the third information, the terminal device can determine the time-frequency domain resources required for transmission of the first information based on the third information, and transmit information or data based on the time-frequency domain resources, which is beneficial to guarantee the reliability of transmission of the first information.

[0201] Optionally, when the terminal device transmits data to the network device multiple times, the terminal device can directly transmit information indicating the time of next transmission of data by the terminal device to the network device. In this case, the third information can not be used to indicate the time of next transmission of data by the terminal device.

[0202] In this case, the terminal device can also transmit the second information to the network device. The terminal device can determine the time-frequency domain resources required for transmission of the second information based on the third information, and transmit information or data based on the time-frequency domain resources, which is beneficial to guarantee the reliability of transmission of the second information.

[0203] In a possible implementation, the third information can also include an SI-RNTI.

[0204] In the implementation, after receiving the third information, the terminal device can scramble the third information using the SI-RNTI, and select time-frequency domain resources for transmission of the first information based on the resource-related information of the EDT indicated by the third information.

[0205] Specifically, the terminal device can determine the RU for transmitting the first information based on the resource-related information of the EDT indicated by the third information.

[0206] When the lengths of the time-domain resources / frequency-domain resources indicated by the third information are different, and / or the number of the RUs for transmitting the first information by a single user is different, and / or the repetition number of the first information is different, the RUs for transmitting the first information are also different.

[0207] As an example, assuming that the length of the time-domain resource indicated by the third information is 32 milliseconds (ms), the length of the frequency-domain resource is 3 frequency-domain subcarriers of 15 kilohertz (kHz), the number of the RUs for transmitting the first information by a single user is 1, and the repetition number of the first information is 1, the RUs for transmitting the first information can include all or part of the RUs in the first RU.

[0208] The first RU can include at least one type of RU, and the RUs of different types in the at least one type of RU in the first RU do not overlap in the time-frequency domain resource.

[0209] FIG. 4 is a schematic diagram of the types of the first RU according to an embodiment of the present application. In this example, the first RU can support three types of RUs: type 1, type 2, and type 3.

[0210] In type 1, the length of the time-domain resource of the RU is 32 ms, and the length of the frequency-domain resource of the RU is 3.75 kHz. In type 2, the length of the time-domain resource of the RU is 8 ms, and the length of the frequency-domain resource of the RU is 15 kHz. In type 3, the length of the time-domain resource of the RU is 4 ms, and the length of the frequency-domain resource of the RU is 3*15 kHz, i.e., 45 kHz.

[0211] In the embodiments of the present application, when the length of the frequency-domain resource of the RU is 3.75 kHz, it can be indicated that the RU is a single-tone RU. When the length of the frequency-domain resource of the RU is 15 kHz, it can also be indicated that the RU is a single-tone RU. When the length of the frequency-domain resource of the RU is 45 kHz, it can be indicated that the RU is a multi-tone RU.

[0212] For any type of RU, each type of RU can include at least one RU.

[0213] It can be understood that the embodiment shown in FIG. 4 is only an example of the types of RUs supported by the first RU. In the actual mapping process, the two types of RUs of type 1 and type 3 do not overlap in the time-frequency domain resource.

[0214] Optionally, in actual transmission, the RUs used for transmitting the first information can include at least one type of RU among the three types, and the RUs used for transmitting the first information can include all or part of the RUs of the at least one type.

[0215] In this example, the terminal device can select the RUs used for transmitting the first information from the first RUs, which is conducive to ensuring the reliability of the transmission of the first information.

[0216] As another example, assuming that the third information indicates that the length of the time domain resource is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs used for transmitting the first information by a single user is 2, and the repetition number of the first information is 1, the RUs used for transmitting the first information can include all or part of the second RUs.

[0217] The second RUs can include at least one type of RU, and the different types of RUs in the at least one type of RU in the second RUs do not coincide in the time-frequency domain resource.

[0218] FIG. 5 is a schematic diagram of the types of the second RUs according to an embodiment of the present application. In this example, the second RUs can support four types of RUs: type 4, type 5, type 6, and type 7.

[0219] In type 4, the length of the time domain resource of the RU is 32 ms, and the length of the frequency domain resource of the RU is 3.75 kHz. In type 5, the length of the time domain resource of the RU is 8 ms, and the length of the frequency domain resource of the RU is 15 kHz. In type 6, the length of the time domain resource of the RU is 4 ms, and the length of the frequency domain resource of the RU is 3, i.e., 45 kHz. In type 7, the length of the time domain resource of the RU is 2 ms, and the length of the frequency domain resource of the RU is 6, i.e., 90 kHz.

[0220] In the embodiments of the present application, when the length of the frequency domain resource of the RU is 90 kHz, the RU can also be a multi-carrier RU.

[0221] For any type of RU, each type of RU can include at least one RU.

[0222] It can be understood that the embodiments shown in FIG. 5 are only examples of the types of RUs supported by the second RUs. In actual mapping, the two types of RUs of type 4 and type 7 do not coincide in the time-frequency domain resource.

[0223] Optionally, in actual transmission, the RUs used for transmitting the first information can include at least one type of RU among the four types, and the RUs used for transmitting the first information can include all or part of the RUs of the at least one type.

[0224] In this example, the terminal device can select the RU for transmitting the first information from the second RUs, which is beneficial to guarantee the reliability of the transmission of the first information.

[0225] As another example, assuming that the third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by a single user is 2, and the repetition number of the first information is 2, the RUs for transmitting the first information can include all or part of the RUs in the third RUs.

[0226] The third RUs can include at least one type of RU, and the different types of RUs in the at least one type of RU in the third RUs do not overlap in the time-frequency domain resource.

[0227] FIG. 6 is a schematic diagram of the types of the third RUs according to an embodiment of the present application. In this example, the third RUs can support three types of RUs: type 8, type 9, and type 10.

[0228] In type 8, the length of the time domain resource of the RU is 32 ms, and the length of the frequency domain resource of the RU is 3.75 kHz. In type 9, the length of the time domain resource of the RU is 8 ms, and the length of the frequency domain resource of the RU is 15 kHz. In type 10, the length of the time domain resource of the RU is 4 ms, and the length of the frequency domain resource of the RU is 3, i.e., 45 kHz.

[0229] For any type of RU, each type of RU can include at least one RU.

[0230] It can be understood that the embodiment shown in FIG. 6 is only an example of the types of RUs supported by the third RUs. In the actual mapping process, the two types of RUs of type 8 and type 10 do not overlap in the time-frequency domain resource.

[0231] Optionally, in the actual transmission process, the RUs for transmitting the first information can include at least one type of RU from the three types, and the RUs for transmitting the first information can include all or part of the RUs in the at least one type of RU.

[0232] In this example, the terminal device can select the RU for transmitting the first information from the third RUs, which is beneficial to guarantee the reliability of the transmission of the first information.

[0233] It can be understood that FIG. 4 to FIG. 6 are only three simple examples provided by the present application, and in actual mapping process, the type of RU that can be mapped by the terminal device can include a longer length of frequency domain resource and / or more length of time domain resource. As an example, the type of RU that can be mapped by the terminal device can include a 12-subcarrier 15 kHz (i.e., 180 kHz) subcarrier type RU and the like.

[0234] In the embodiment of the present application, when the length of the frequency domain resource of the RU is 180 kHz, the RU can also be a multi-carrier RU.

[0235] In the embodiment of the present application, the RU used for transmitting the first information can be preconfigured. The preconfigured RU can be a preconfigured physical uplink shared channel (PUSCH) dedicated to EDT. In the embodiment of the present application, the preconfigured RU can also be referred to as a preconfigured EDT-PUSCH.

[0236] Optionally, for different types of RUs, different types of RUs can correspond to different numbers, and the RUs between different numbers do not overlap in time-frequency domain resources.

[0237] In the embodiment of the present application, the number corresponding to the RU can be used to indicate the RU. The terminal device and the network device can indicate the RU for transmitting data or information through the number corresponding to the RU.

[0238] Optionally, the number corresponding to the RU is only one way to indicate the RU, and does not limit the scope of the way to indicate the RU in the present application. Optionally, the number corresponding to different types of RUs can be pre-set by the network device.

[0239] In the embodiment of the present application, the pre-set number sequence of the network device can be: a single-carrier 3.75 kHz subcarrier type RU, a single-carrier 15 kHz subcarrier type RU, a multi-carrier 3-subcarrier 15 kHz subcarrier type RU, a multi-carrier 6-subcarrier 15 kHz subcarrier type RU, and a multi-carrier 12-subcarrier 15 kHz subcarrier type RU.

[0240] The pre-set number sequence of the network device in the time domain can be: for any type of RU, the time domain can be divided into segments, where T EDT is the length of the time domain resource, i.e., the time domain length of the preconfigured EDT-PUSCH, and T RU is the time domain length of a single RU of the RU type.

[0241] As an example, the time domain length of a single-carrier 3.75 kHz subcarrier type T RU=32, single-carrier 15kHz subcarrier type T RU =8, multi-carrier type T with 3 15kHz subcarriers RU =4.

[0242] The pre-configured frequency domain numbering order for network devices can be as follows: For any RU type, the frequency domain can be divided into... Segment, of which F EDT F represents the length of the frequency domain resource, i.e., the frequency domain bandwidth of the pre-configured EDT-PUSCH. RU This represents the frequency domain bandwidth of the RU type.

[0243] As an example, with single-carrier F RU Taking the 3.75kHz subcarrier type as an example, when the total length of the frequency domain allocated to the RU type is 45kHz, the frequency domain can be divided into 12 segments.

[0244] In addition, for any type of RU, network devices can number RUs first in the time domain and then in the frequency domain.

[0245] Referring to Figure 4, taking a time domain resource length of 32ms, a frequency domain resource length of 3 15kHz frequency domain subcarriers, a single user sending 1 RU for the first information, and the first information being repeated 1 time as an example, the numbering of the first RU can be as shown in Figure 7.

[0246] In this example, the network device can first number the RUs of type 1, then number the RUs of type 2, and finally number the RUs of type 3.

[0247] Specifically, for type 1, there can be 12 RUs, numbered 0-11. The time-domain resource length of each RU is 32ms*N. RU *N Rep That is, 32ms.

[0248] For type 2, there can be 12 RUs, numbered 12-23. The time-domain resource length of each RU is 8ms*N. RU *N Rep That is, 8ms.

[0249] For type 3, there can be 8 RUs, numbered 24-31. The time-domain resource length of each RU is 4ms*N. RU *N Rep That is, 4ms.

[0250] In this example, the RUs between different numbers do not overlap in time-frequency domain resources. For example, assuming that the network device configures the RUs corresponding to at least one number in 0-3, the RUs corresponding to 12-15 and the RUs corresponding to 24-31 will no longer be configured.

[0251] It can be understood that the numbers of the first RUs shown in FIG. 7 are only a simple example and do not limit the scope of the present application. For example, in other embodiments, the network device can first number the RUs of type 2, or can first number the RUs of type 3.

[0252] In combination with FIG. 5, taking the length of the time domain resource as 64 ms, the length of the frequency domain resource as 6 frequency domain subcarriers of 15 kHz, the number of RUs for a single user to send the first information as 2, and the repetition number of the first information as 1 as an example, the numbers of the second RUs can be as shown in FIG. 8.

[0253] In this example, the network device can first number the RUs of type 4, then number the RUs of type 5, then number the RUs of type 6, and finally number the RUs of type 7.

[0254] Specifically, for type 4, the RUs of type 4 can include 24, and the numbers corresponding to the 24 RUs are 0-23, respectively. The length of the time domain resource of the RU corresponding to each number is 32 ms*N RU *N Rep , that is, 64 ms.

[0255] For type 5, the RUs of type 5 can include 24, and the numbers corresponding to the 24 RUs are 24-47, respectively. The length of the time domain resource of the RU corresponding to each number is 8 ms*N RU *N Rep , that is, 16 ms.

[0256] For type 6, the RUs of type 6 can include 16, and the numbers corresponding to the 16 RUs are 48-63, respectively. The length of the time domain resource of the RU corresponding to each number is 4 ms*N RU *N Rep , that is, 8 ms.

[0257] For type 7, the RUs of type 7 can include 16, and the numbers corresponding to the 16 RUs are 64-79, respectively. The length of the time domain resource of the RU corresponding to each number is 2 ms*N RU *N Rep , that is, 4 ms.

[0258] In this example, the RUs of different numbers do not overlap in time-frequency domain resources. For example, assuming that the network device configures the RUs corresponding to at least one number among 0-3, the network device will no longer configure the RUs corresponding to 24-27, the RUs corresponding to 48-55, and the RUs corresponding to 64-79.

[0259] It can be understood that the numbers of the second RUs shown in FIG. 8 are only a simple example and do not limit the scope of the present application. For example, in other embodiments, the network device can first number the RUs of type 5, or can first number the RUs of type 6, or can first number the RUs of type 7.

[0260] In combination with FIG. 6, the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs in which a single user transmits the first information is 2, the number of repetitions of the first information is 2, and the numbers of the third RUs can be as shown in FIG. 9.

[0261] In this example, the network device can first number the RUs of type 8, then number the RUs of type 9, and then number the RUs of type 10.

[0262] Specifically, for type 1, the RUs of type 1 can include 12, and the numbers corresponding to the 12 RUs are 0-11, respectively. The length of the time domain resource of the RU corresponding to each number is 32 ms*N TU *N Rep , that is, 128 ms.

[0263] For type 2, the RUs of type 2 can include 12, and the numbers corresponding to the 12 RUs are 12-23, respectively. The length of the time domain resource of the RU corresponding to each number is 8 ms*N RU *N Rep , that is, 32 ms.

[0264] For type 3, the RUs of type 3 can include 8, and the numbers corresponding to the 8 RUs are 24-31, respectively. The length of the time domain resource of the RU corresponding to each number is 4 ms*N RU *N Rep , that is, 16 ms.

[0265] In this example, the RUs of different numbers do not overlap in time-frequency domain resources. For example, assuming that the network device configures the RUs corresponding to at least one number among 0-3, the network device will no longer configure the RUs corresponding to 12-15 and the RUs corresponding to 24-31.

[0266] It can be understood that the numbering of the third RUs shown in FIG. 9 is only a simple example and does not limit the scope of the present application. For example, in other embodiments, the network device can first number the type 9 RUs, or can first number the type 10 RUs.

[0267] In an embodiment of the present application, each of the RUs used to transmit the first information can correspond to a different number, and the RUs between different numbers do not overlap in time-frequency domain resources.

[0268] The RUs between different numbers not overlapping in time-frequency domain resources can be understood as: the RUs between different numbers cannot occupy the same time domain resources, and / or the RUs between different numbers cannot occupy the same frequency domain resources.

[0269] In this implementation, the network device can also indicate the RU number in the third information sent to the terminal device.

[0270] In this implementation, the terminal device can also send the number of the RU used to transmit the first information to the network device. In this way, the network device can determine the time-frequency domain resources used to transmit the first information based on the number, so as to receive the first information on the corresponding time-frequency domain resources, which is beneficial to guarantee the reliability of the first information transmission.

[0271] In this implementation, the terminal device can determine the SI-RNTI based on the third information, and scramble the first information using the SI-RNTI, which is beneficial to guarantee the transmission efficiency of the first information.

[0272] In another possible implementation, when the first RNTI includes the EDT-RNTI, the EDT-RNTI can be determined based on the third information.

[0273] The content included in the third information can refer to the foregoing embodiments and will not be described here.

[0274] As an example, the terminal device can calculate and generate the EDT-RNTI according to the time-frequency domain position, RU number, and other information indicated by the third information, and scramble the Msg3.

[0275] Optionally, when the terminal device generates the EDT-RNTI, the following formula can be met:

[0276] EDT-RNTI = 1 + t id +N×f id +N×M×k id

[0277] Wherein, t id may represent the index of the starting slot of the RU for EDT in the system frame, t id The value range of t is: 0≤tid N can represent the number of time slots for EDT transmission. id f can represent the index of the starting frequency domain resource of the RU for EDT in the system frame. id The value range of f is: 0≤f id M can represent the number of frequency domain resources for EDT transmission. id k can represent the category number of the RU.

[0278] As an example, taking the first RU shown in FIG. 7 as an example, assuming that the RU index number is 25, the index of the starting time slot of the RU with the RU index number 25 is 4, then t id may be 4, the index of the starting frequency domain resource of the RU with the RU index number 25 is 0, then f id may be 0. The number of time slots for EDT transmission in type 3 corresponding to the RU with the RU index number 25 is 32 ms, then N can be 32. The number of frequency domain resources for EDT transmission in type 3 corresponding to the RU with the RU index number 25 is 3 15 kHz, then M can be 3.

[0279] Optionally, in the first RU, the category number of the RU of type 1 can be 0, the category number of the RU of type 2 can be 1, and the category number of the RU of type 3 can be 2, so that k id may take the value 2.

[0280] In this implementation manner, the terminal device can determine the EDT-RNTI based on the third information, and scramble the first information by using the EDT-RNTI, which is beneficial to guarantee the transmission efficiency of the first information.

[0281] S302, the network device performs blind detection on the first information.

[0282] In this method, the network device can perform blind detection on the first information by using the first RNTI and the second RNTI to obtain the first data.

[0283] The second RNTI can include a cell temporary network user identifier (EDT-C-RNTI) for EDT or a C-RNTI.

[0284] As an example, the second RNTI can be dynamically allocated by the network device.

[0285] For example, when the second RNTI includes the C-RNTI, the network device can dynamically allocate the C-RNTI for the terminal device.

[0286] For example, when the second RNTI comprises an EDT-C-RNTI, the network device can dynamically allocate the EDT-C-RNTI to the terminal device. Optionally, the network device can dynamically allocate the EDT-C-RNTI to the terminal device in the same manner as the network device dynamically allocates a C-RNTI to the terminal device, which is not limited in the present application.

[0287] In this example, the network device can allocate different second RNTIs to different terminal devices. In other words, different terminal devices can correspond to different second RNTIs.

[0288] Optionally, different terminal devices can also correspond to different first RNTIs.

[0289] In this example, after receiving the first information from the terminal device, the network device can determine the first RNTI and the second RNTI corresponding to the terminal device, and then blindly detect the first information based on the first RNTI and the second RNTI corresponding to the terminal device.

[0290] As another example, the second RNTI can be determined by the network device based on a preset identifier set. The preset identifier set can include the second RNTI.

[0291] Optionally, the preset identifier set can be pre-stored by the network device.

[0292] Optionally, different terminal devices can correspond to different second RNTIs in the preset identifier set.

[0293] Optionally, different terminal devices can also correspond to different first RNTIs.

[0294] In this example, after receiving the first information from the terminal device, the network device can determine the first RNTI corresponding to the terminal device, and determine the second RNTI corresponding to the terminal device from the preset identifier set, and then blindly detect the first information based on the first RNTI and the second RNTI corresponding to the terminal device.

[0295] Optionally, after the network device successfully blindly detects the first information, the network device can further send fourth information to the terminal device, where the fourth information is used to indicate that the network device has successfully received the first data. Correspondingly, the terminal device receives the fourth information.

[0296] In the method, the fourth information can be information 4, or can be carried in information 4. The information 4 can be information 4 sent by the network device to the terminal device after receiving information 3.

[0297] Optionally, the fourth information can comprise an identifier (ID) of the terminal device. In this way, after receiving the fourth information, the terminal device can determine that the network device has successfully received the first data sent by the terminal device based on the ID of the terminal device.

[0298] In the method, the first information is scrambled by using the first RNTI. In this way, after receiving the first information, the network device can successfully blind detect the first information based on the first RNTI, which is beneficial to improving the transmission efficiency of the first information.

[0299] Optionally, in some scenarios, for example, in a scenario where the terminal device sends data to the network device multiple times, the data transmission method can be as shown in FIG. 10. In this scenario, the data transmission method can further comprise S303 to S304.

[0300] S303, the terminal device sends second information to the network device based on the EDT, the second information is scrambled by using a second scrambling manner, and the second scrambling manner is different from the first scrambling manner. Correspondingly, the network device receives the second information.

[0301] In the method, the second information can be information 3 or can be carried in information 3. The information 3 can be information 3 sent by the terminal device to the network device when the terminal device transmits data again, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when the terminal device transmits data again without sending information 1 to the network device and without receiving RAR from the network device.

[0302] In the method, the second information can be used to indicate second data, and the second data can be data transmitted by the terminal device to the network device again in the non-connected state.

[0303] In the present application, for the convenience of description, the data transmitted by the terminal device to the network device again in the non-connected state can be referred to as data transmitted subsequently by the terminal device, or data transmitted non-first time by the terminal device.

[0304] Optionally, the second data can also be referred to as second user data.

[0305] Optionally, during a time period between the time when the terminal device sends the second information and the time when the terminal device sends the first information, the terminal device is always in the non-connected state.

[0306] In the method, the second scrambling manner can indicate scrambling based on a second RNTI. In the embodiments of the present application, the second information scrambled by using the second scrambling manner can be understood as: the second information is scrambled by using the second RNTI.

[0307] In a scenario where the terminal device transmits data to the network device multiple times, the first information transmitted by the terminal device to the network device can indicate a time for the terminal device to transmit data next time. In this scenario, when the network device transmits the fourth information to the terminal device, the fourth information can also indicate the RU and the second scrambling mode required when transmitting data next time.

[0308] In the method, the network device can determine the second RNTI in the manner described with reference to the foregoing S302, and details are not described herein again.

[0309] Optionally, the network device can determine the RU required when transmitting data next time in the following manner: the network device first determines whether the received data is data transmitted by the terminal device for the first time, and if the data received by the network device is data transmitted by the terminal device for the first time, the terminal device can acquire resource usage of a plurality of terminal devices at a target time, determine at least one RU based on the resource usage at the target time, and determine the at least one RU as the RU required when transmitting data next time. Each RU in the at least one RU has a quantity of data transmitted at the target time less than or equal to a preset quantity threshold.

[0310] Optionally, the network device can determine whether the received data is data transmitted by the terminal device for the first time based on the scrambling mode.

[0311] For example, if the network device determines that the information for transmitting data is scrambled based on the first RNTI, it is determined that the received data is data transmitted by the terminal device for the first time. For another example, if the network device determines that the information for transmitting data is scrambled based on the second RNTI, it is determined that the received data is not data transmitted by the terminal device for the first time.

[0312] Optionally, the network device can determine the scrambling mode based on a blind detection manner.

[0313] For example, if the network device performs blind detection on the information for transmitting data using the first RNTI and obtains data, it is determined that the information for transmitting data is scrambled based on the first RNTI. For another example, if the network device performs blind detection on the information for transmitting data using the second RNTI and obtains data, it is determined that the information for transmitting data is scrambled based on the second RNTI.

[0314] In the method, the plurality of terminal devices can be a plurality of terminal devices in a cell of the network device for transmitting data.

[0315] The target time can be a time for the terminal device to transmit data next time. Alternatively, the target time can be a time for the terminal device to transmit second data. Optionally, the network device can determine the target time based on the time for the terminal device to transmit data next time indicated by the first information.

[0316] The resource usage of the plurality of terminal devices at the target time can include a quantity of data that each RU of the RUs preconfigured by the network device needs to transmit.

[0317] Optionally, the resource usage of the plurality of terminal devices at the target time can include a quantity of terminal devices that each RU of the RUs preconfigured by the network device includes for transmitting data.

[0318] As an example, it is assumed that the resource usage of the plurality of terminal devices at the target time can be as shown in FIG. 11. In this example, it is assumed that the RUs preconfigured by the network device include 12, and the 12 RUs correspond to indexes or numbers respectively, and the indexes or numbers corresponding to the 12 RUs can be 0-11 respectively. In this example, the t0 time can be a time at which the network device successfully receives first data, or a time at which the network device receives first information and successfully blindly detects the first information. The t1 time can be the target time, i.e., a time at which the terminal device next transmits data.

[0319] In this example, the number after the index or number of each RU resource can represent a quantity of data that the RU indicated by the index or number needs to transmit, or represent a quantity of terminal devices that the RU indicated by the index or number includes for transmitting data, i.e., represent that the quantity of terminal devices need to use the RU resource to transmit data.

[0320] For example, for the RU resource with the index or number 0, the number 3 can represent that the quantity of data that the RU resource needs to transmit is 3, or represent that the quantity of terminal devices that the RU resource includes for transmitting data is 3, i.e., there are 3 terminal devices that need to use the RU resource to transmit data.

[0321] In this example, it is assumed that the preset quantity threshold is 1, and since the number corresponding to the RU resource with the index or number 5 is 0, and the numbers corresponding to the RU resources with the index or numbers 3 and 6 are 1, the RU resource with the index or number 5, the RU resource with the index or number 3, and the RU resource with the index or number 6 can be determined as the at least one RU.

[0322] Optionally, the network device can prioritize the at least one RU resource, and the priority can be associated with the number corresponding to each RU resource of the at least one RU resource. The smaller the number corresponding to the RU resource, the higher the priority.

[0323] In this example, the priority of the RU resource with the index or number 5 is the highest, and the priorities of the RU resource with the index or number 3 and the RU resource with the index or number 6 are the second highest.

[0324] Optionally, if the data received by the network device is not the first data transmitted by the terminal device, the network device can determine the RU required for the next data transmission as the RU allocated to the terminal device by the network device after the first data received by the network device from the terminal device.

[0325] In S304, the network device performs blind detection on the second information.

[0326] In the method, the network device can perform blind detection on the second information in the manner described above with reference to the blind detection on the first information in S302, which will not be described herein again.

[0327] In the method, the second information is scrambled by the second RNTI. In this way, the network device can successfully perform blind detection on the second information based on the second RNTI, which is conducive to improving the transmission efficiency of the second information.

[0328] Optionally, after successfully performing blind detection on the second information, the network device can further send fifth information to the terminal device, where the fifth information is used to indicate that the network device has successfully received the second data. Correspondingly, the terminal device receives the fifth information.

[0329] In the method, the fifth information can also be information 4 or can be carried in information 4. The information 4 can be information 4 sent by the network device to the terminal device after receiving information 3.

[0330] Optionally, the fifth information can include the ID of the terminal device. In this way, after receiving the fifth information, the terminal device can determine that the network device has successfully received the second data sent by the terminal device based on the ID of the terminal device.

[0331] Optionally, the fifth information can further indicate the RU and the second RNTI required for the next data transmission.

[0332] In the method, the terminal device can scramble the information sent based on EDT based on the first scrambling manner or the second scrambling manner. In this way, the network device can know the scrambling manner of the terminal device, and perform blind detection on the information sent based on EDT based on the scrambling manner of the terminal device, which avoids the problem of too many blind detection times of the network device, and is conducive to improving the transmission efficiency of information 3.

[0333] In addition, the scrambling manners of the first information and the second information are different. After receiving the first information or the second information, the network device can determine whether the information is the first information transmitted based on EDT based on the scrambling manner of the information, which facilitates subsequent allocation of appropriate time-frequency domain resources to the terminal device, and is conducive to reducing the conflict probability of subsequent data transmission based on EDT by the terminal device.

[0334] Next, the data transmission method of the present application will be further introduced taking the first RNTI, SI-RNTI, as an example.

[0335] FIG. 12 is a flowchart of a data transmission method according to another embodiment of the present application.

[0336] S1201, the network device sends third information to the terminal device, the third information containing the SI-RNTI, and the third information further indicating resource-related information of the EDT, the resource-related information of the EDT containing one or more of the following information: a starting position of a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink RUs for transmitting the first information by a single user, a repetition number of the first information, or a time of next data transmission. Correspondingly, the terminal device receives the third information.

[0337] Optionally, the third information can be a SIB.

[0338] In the method, the information indicated by the third information can refer to the related content in S301 of the foregoing embodiments, which will not be described here again.

[0339] S1202, the terminal device selects a time-frequency domain resource based on the resource-related information of the EDT indicated by the third information.

[0340] In the method, the time-frequency domain resource can be an RU for transmitting the first information.

[0341] When the lengths of the time domain resource / frequency domain resource indicated by the third information are different, and / or the numbers of the RUs for transmitting the first information by a single user are different, and / or the repetition numbers of the first information are different, the RUs for transmitting the first information are also different.

[0342] The method for the terminal device to select the time-frequency domain resource can refer to the related content in S301 of the foregoing embodiments, which will not be described here again.

[0343] S1203, the terminal device sends the first information to the network device based on the selected time-frequency domain resource, the first information being used to indicate first data, the first data being data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state, and the first information being scrambled based on the SI-RNTI. Correspondingly, the network device receives the first information.

[0344] In the method, the first information can be information 3 or can be carried in the information 3. The information 3 can be information 3 directly transmitted by the terminal device to the network device, or in other words, the information 3 can be information 3 transmitted by the terminal device to the network device when the terminal device does not transmit information 1 to the network device and does not receive RAR from the network device.

[0345] In the method, the network device can pre-number the RU resources. In this way, the network device can determine which RU resource is used to transmit the first information based on the number of the RU resource used to transmit the first information.

[0346] Optionally, the manner in which the network device numbers the RU resources can refer to the related content in the foregoing embodiment S301, which will not be described here again.

[0347] In the method, each of the RUs used to transmit the first information can correspond to a different number, and the RUs with different numbers do not overlap in the time-frequency domain resources.

[0348] Optionally, in the case where the terminal device transmits data to the network device multiple times, the first information can also be used to indicate the time at which the terminal device transmits data next time.

[0349] S1204, the network device performs blind detection on the first information to obtain the first data.

[0350] In the method, the manner in which the network device performs blind detection on the first information can refer to the related content in the foregoing embodiment S302, which will not be described here again.

[0351] S1205, the network device sends fourth information to the terminal device, the fourth information being used to indicate that the network device has successfully received the first data, and the fourth information also indicating the RU and the second scrambling manner required when data is transmitted next time. Correspondingly, the terminal device receives the fourth information.

[0352] In the method, the fourth information can be information 4 or can be carried in the information 4. The information 4 can be information 4 sent by the network device to the terminal device after the network device receives the information 3.

[0353] Optionally, the fourth information can include the ID of the terminal device. In this way, after the terminal device receives the fourth information, the terminal device can determine that the network device has successfully received the first data sent by the terminal device based on the ID of the terminal device.

[0354] Optionally, in some scenarios, for example, in the scenario where the terminal device transmits data to the network device multiple times, the fourth information can also indicate the RU and the second scrambling manner required when data is transmitted next time.

[0355] In the method, the second scrambling manner can indicate scrambling based on a second RNTI. The second RNTI can include an EDT-C-RNTI or a C-RNTI.

[0356] In the method, the related content of the second RNTI can refer to the related content of S302 in the foregoing embodiment, which will not be described here again.

[0357] S1206, the terminal device sends second information to the network device based on the RU required for the next data transmission, the second information is used to indicate second data, the second data is data transmitted by the terminal device to the network device again in the non-connected state, and the second information is scrambled based on a second scrambling manner. Correspondingly, the network device receives the second information.

[0358] In the method, the second information can be information 3 or can be carried in information 3. The information 3 can be information 3 sent by the terminal device to the network device when transmitting data again, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when transmitting data again without sending information 1 to the network device and without receiving RAR from the network device.

[0359] S1207, the network device performs blind detection on the second information to obtain the second data.

[0360] In the method, the network device can perform blind detection on the second information in the manner described in S302 of the foregoing embodiments, and details are not described herein again.

[0361] S1208, the network device sends fifth information to the terminal device, and the fifth information is used to indicate that the network device has successfully received the second data. Correspondingly, the terminal device receives the fifth information.

[0362] In the method, the fifth information can also be information 4 or can be carried in information 4. The information 4 can be information 4 sent by the network device to the terminal device after receiving information 3.

[0363] Optionally, the fifth information can include the ID of the terminal device. In this way, after receiving the fifth information, the terminal device can determine that the network device has successfully received the second data sent by the terminal device based on the ID of the terminal device.

[0364] Optionally, the fifth information can also indicate the RU required for the next data transmission and the second scrambling manner.

[0365] It can be understood that the data transmission method shown in FIG. 12 can be applied to the case where the terminal device transmits data to the network device multiple times.

[0366] Optionally, in some scenarios, the terminal device can transmit data to the network device once. Correspondingly, the method can not include S1206 to S1208. In addition, the fourth information sent by the network device to the terminal device in S1205 can not indicate the RU required for the next data transmission and the second scrambling manner.

[0367] Next, the present application will take the first RNTI as an example of EDT-RNTI to further introduce the data transmission method of the present application.

[0368] FIG. 13 is a flow diagram of a data transmission method according to another embodiment of the present application.

[0369] S1301. The network device sends third information to the terminal device, the third information indicating resource-related information of the EDT, the resource-related information of the EDT including one or more of the following: a starting position in a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink RUs for transmitting the first information by a single user, a number of repetitions of the first information, or a time of next data transmission. Correspondingly, the terminal device receives the third information.

[0370] Optionally, the third information can be a SIB.

[0371] In the method, the information indicated by the third information can refer to the related content in S301 in the foregoing embodiments, which will not be described here again.

[0372] S1302. The terminal device selects a time-frequency domain resource based on the resource-related information of the EDT indicated by the third information.

[0373] In the method, the time-frequency domain resource can be an RU for transmitting the first information.

[0374] When the lengths of the time domain resource / frequency domain resource indicated by the third information are different, and / or the numbers of RUs for transmitting the first information by a single user are different, and / or the numbers of repetitions of the first information are different, the RUs for transmitting the first information are also different.

[0375] The method for the terminal device to select the time-frequency domain resource can refer to the related content in S301 in the foregoing embodiments, which will not be described here again.

[0376] S1303. The terminal device generates an EDT-RNTI based on the third information.

[0377] In the method, the method for the terminal device to generate the EDT-RNTI based on the third information can refer to the related content in S301 in the foregoing embodiments, which will not be described here again.

[0378] S1304. The terminal device sends the first information to the network device based on the selected time-frequency domain resource, the first information being used to indicate first data, the first data being data transmitted by the terminal device to the network device for the first time after the terminal device enters the non-connected state, and the first information being scrambled based on the EDT-RNTI. Correspondingly, the network device receives the first information.

[0379] In the method, the first information can be information 3, or can be carried in information 3. The information 3 can be information 3 directly sent by the terminal device to the network device, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when the terminal device does not send information 1 to the network device and does not receive RAR from the network device.

[0380] In the method, the network device can pre-number the RU resources. In this way, the network device can determine which RU resource is used to transmit the first information based on the number of the RU resource used to transmit the first information.

[0381] Optionally, the network device can number the RU resources in the manner described in the foregoing embodiment S301, which will not be described here again.

[0382] In the method, each of the RUs used to transmit the first information can correspond to a different number, and the RUs with different numbers do not overlap in time-frequency domain resources.

[0383] Optionally, when the terminal device sends data to the network device multiple times, the first information can also be used to indicate the time of next data transmission of the terminal device.

[0384] S1305, the network device performs blind detection on the first information to obtain the first data.

[0385] In the method, the network device can perform blind detection on the first information in the manner described in the foregoing embodiment S302, which will not be described here again.

[0386] S1306, the network device sends fourth information to the terminal device, the fourth information being used to indicate that the network device has successfully received the first data, and the fourth information also indicating the RU and the second scrambling manner required for next data transmission. Correspondingly, the terminal device receives the fourth information.

[0387] In the method, the fourth information can be information 4, or can be carried in information 4. The information 4 can be information 4 sent by the network device to the terminal device after receiving information 3.

[0388] Optionally, the fourth information can include the ID of the terminal device. In this way, after receiving the fourth information, the terminal device can determine that the network device has successfully received the first data sent by the terminal device based on the ID of the terminal device.

[0389] Optionally, in some scenarios, for example, in the scenario where the terminal device sends data to the network device multiple times, the fourth information can also indicate the RU and the second scrambling manner required for next data transmission.

[0390] In the method, the second scrambling manner can indicate scrambling based on a second RNTI. The second RNTI can include an EDT-C-RNTI or a C-RNTI.

[0391] In the method, the second RNTI can refer to the related content of S302 in the foregoing embodiments, and details are not described herein.

[0392] S1307, the terminal device sends second information to the network device based on the RU required for the next data transmission, the second information is used to indicate second data, the second data is data transmitted by the terminal device to the network device again in the non-connected state, and the second information is scrambled based on a second scrambling manner. Correspondingly, the network device receives the second information.

[0393] In the method, the second information can be information 3 or can be carried in information 3. The information 3 can be information 3 sent by the terminal device to the network device when transmitting data again, or in other words, the information 3 can be information 3 sent by the terminal device to the network device when transmitting data again without sending information 1 to the network device and without receiving RAR from the network device.

[0394] S1308, the network device performs blind detection on the second information to obtain the second data.

[0395] In the method, the manner in which the network device performs blind detection on the second information can refer to the related content of S302 in the foregoing embodiments, and details are not described herein.

[0396] S1309, the network device sends fifth information to the terminal device, and the fifth information is used to indicate that the network device has successfully received the second data. Correspondingly, the terminal device receives the fifth information.

[0397] In the method, the fifth information can also be information 4 or can be carried in information 4. The information 4 can be information 4 sent by the network device to the terminal device after receiving information 3.

[0398] Optionally, the fifth information can include the ID of the terminal device. In this way, after receiving the fifth information, the terminal device can determine that the network device has successfully received the second data sent by the terminal device based on the ID of the terminal device.

[0399] Optionally, the fifth information can also indicate the RU required for the next data transmission and the second scrambling manner.

[0400] It can be understood that the data transmission method shown in FIG. 13 can be applied to the case where the terminal device transmits data to the network device multiple times.

[0401] Optionally, in some scenarios, the terminal device can transmit data to the network device once. Accordingly, the method can not include S1307-S1309. In addition, the fourth information sent by the network device to the terminal device in S1306 can not indicate the RU and the second scrambling mode required for the next data transmission.

[0402] FIG. 14 is a structural schematic diagram of a data transmission apparatus provided by one embodiment of the present application. As shown in FIG. 14, the data transmission apparatus 1400 can include a sending module 1401.

[0403] As an example, the data transmission apparatus 1400 can be used to implement the data transmission method of the embodiment shown in FIG. 3. The sending module 1401 can be used to perform S301.

[0404] As another example, the data transmission apparatus 1400 can be used to implement the data transmission method of the embodiment shown in FIG. 10. The sending module 1401 can be used to perform S301 and S303.

[0405] Optionally, the data transmission apparatus 1400 can further include a processing module 1402 and a receiving module 1403.

[0406] As yet another example, the data transmission apparatus 1400 can be used to implement the data transmission method of the embodiment shown in FIG. 12. The sending module 1401 can be used to perform S1203 and S1206, the processing module 1402 can be used to perform S1202, and the receiving module 1403 can be used to perform S1201, S1205 and S1208.

[0407] As yet another example, the data transmission apparatus 1400 can be used to implement the data transmission method of the embodiment shown in FIG. 13. The sending module 1401 can be used to perform S1304 and S1307, the processing module 1402 can be used to perform S1302 and S1303, and the receiving module 1403 can be used to perform S1301, S1306 and S1309.

[0408] Optionally, the data transmission apparatus 1400 can be applied to a terminal device.

[0409] FIG. 15 is a structural schematic diagram of a data transmission apparatus provided by another embodiment of the present application. As shown in FIG. 15, the data transmission apparatus 1500 can include a receiving module 1501 and a processing module 1502.

[0410] As an example, the data transmission apparatus 1500 can be used to implement the data transmission method of the embodiment shown in FIG. 3. The receiving module 1501 can be used to perform S301, and the processing module 1502 can be used to perform S302.

[0411] As another example, the data transmission apparatus 1500 can be configured to implement the data transmission method of the embodiment shown in FIG. 10. In this case, the receiving module 1501 can be configured to perform S301 and S303, and the processing module 1502 can be configured to perform S302 and S304.

[0412] Optionally, the data transmission apparatus 1500 can further include a sending module 1503.

[0413] As another example, the data transmission apparatus 1500 can be configured to implement the data transmission method of the embodiment shown in FIG. 12. In this case, the receiving module 1501 can be configured to perform S1203 and S1206, the processing module 1502 can be configured to perform S1204 and S1207, and the sending module 1503 can be configured to perform S1201, S1205 and S1208.

[0414] As another example, the data transmission apparatus 1400 can be configured to implement the data transmission method of the embodiment shown in FIG. 13. In this case, the receiving module 1501 can be configured to perform S1304 and S1307, the processing module 1502 can be configured to perform S1305 and S1308, and the sending module 1503 can be configured to perform S1301, S1306 and S1309.

[0415] FIG. 16 is a structural diagram of a data transmission apparatus according to another embodiment of the present application. As shown in FIG. 16, the data transmission apparatus 1600 includes a processor 1601 and an interface circuit 1602. The processor 1601 and the interface circuit 1602 are coupled with each other. It can be understood that the interface circuit 1602 can be a transceiver or an input / output interface. Optionally, the data transmission apparatus 1600 can further include a memory 1603 for storing instructions executed by the processor 1601 or storing input data required by the processor 1601 for running instructions or storing data generated after the processor 1601 runs instructions.

[0416] As an example, the processor 1601 can be configured to implement the functions of the processing module 1302, and the interface circuit 1602 can be configured to implement the functions of the sending module 1401 and the receiving module 1403.

[0417] In this example, the data transmission apparatus 1600 can be a terminal device, or a chip or chip system applied to a terminal device.

[0418] Optionally, when the data transmission apparatus 1600 is a chip or chip system applied in a terminal device, the sending / receiving can correspond to the behaviors related to signal sending or receiving, and can be understood as behaviors of sending / receiving radio frequency signals in an analog / intermediate frequency / radio frequency domain, behaviors of starting or controlling sending / receiving in a digital domain, or a combination of the two. For example, when the terminal device sends or receives various signals, a processor in the terminal device sends or receives the signals by driving or controlling a radio frequency circuit. Therefore, during signal sending and receiving, the processor is a decision maker or controller of the sending and receiving operation, and the radio frequency circuit is a specific sender and receiver, and the two cooperate with an antenna to jointly implement the sending and receiving operation.

[0419] As another example, the processor 1601 can be configured to implement the functions of the processing module 1502 described above, and the interface circuit 1602 can be configured to implement the functions of the receiving module 1501 and the sending module 1503 described above.

[0420] In this example, the data transmission apparatus 1600 can be a network device, or a chip or chip system applied in a network device.

[0421] Optionally, when the data transmission apparatus 1600 is a chip or chip system applied in a network device, the sending / receiving can correspond to the behaviors related to signal sending or receiving, and can be understood as behaviors of sending / receiving radio frequency signals in an analog / intermediate frequency / radio frequency domain, behaviors of starting or controlling sending / receiving in a digital domain, or a combination of the two. For example, when the network device sends or receives various signals, a processor in the network device sends or receives the signals by driving or controlling a radio frequency circuit. Therefore, during signal sending and receiving, the processor is a decision maker or controller of the sending and receiving operation, and the radio frequency circuit is a specific sender and receiver, and the two cooperate with an antenna to jointly implement the sending and receiving operation.

[0422] The processor can be one or more central processing units (CPUs), which can be a single core processor or a multiple core processor in the case of a single CPU. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), a graphics processing unit (GPU), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor.

[0423] The radio frequency circuit can include, but is not limited to, a radio frequency chip, a radio frequency front end, a radio frequency power amplifier (PA), a low noise amplifier (LNA), a mixer, a filter, a duplexer, etc. Optionally, the radio frequency circuit can also include an antenna integrated with the radio frequency circuit.

[0424] The method steps in the embodiments of the present application can be implemented in the form of hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in a memory or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal. Of course, the processor and the storage medium can also exist as discrete components in the network device or the terminal.

[0425] In this application, the memory can include cache, random access memory (RAM), flash memory, read-only memory (ROM), synchronous dynamic random access memory (SDRAM), programmable read-only memory, erasable programmable ROM (EPROM), electrically erasable programmable ROM, register, hard disk drive (HDD), or solid-state drive (SSD), mobile hard disk, or compact disc read-only memory (CD-ROM) and the like. The memory is any medium capable of storing or carrying the desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto. The memory in the embodiments of the present application can also be a circuit or any other device capable of realizing the storage function, used for storing computer programs or instructions, and / or data.

[0426] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another, for example, the computer programs or instructions can be transferred from one website site, computer, server or data center to another website site, computer, server or data center through wired or wireless manner. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center and the like integrated with one or more available media. The available media can be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; an optical medium, such as a digital video disc; and a semiconductor medium, such as a solid-state disk.

[0427] The embodiment of the present application further provides a computer readable storage medium, which stores a computer program or instructions, and the computer program or instructions are executed by a computer (for example, a processor) to implement part or all steps of any one of the methods performed by any device in the embodiments of the present application.

[0428] The embodiment of the present application further provides a computer program product including a computer program or a set of instructions, which, when executed on a computer, implements part or all steps of any one of the methods performed by any device in the embodiments of the present application.

[0429] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0430] It can be understood that various numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial numbers of the above processes does not mean the execution order, and the execution order of the processes should be determined according to their functions and inherent logic.

Claims

1. A data transmission method, characterized by, The method comprises: sending first information based on early data transmission (EDT), the first information being scrambled by a first scrambling manner; sending second information based on EDT, the second information being scrambled by a second scrambling manner, the first scrambling manner being different from the second scrambling manner.

2. The method of claim 1, wherein, The first information is used to indicate first data, the first data being data transmitted by a terminal device to a network device for the first time after the terminal device enters an unconnected state; The second information is used to indicate second data, the second data being data transmitted by the terminal device to the network device for the second time in the unconnected state.

3. The method according to claim 1 or 2, characterized in that, The first scrambling manner indicates scrambling based on a first temporary network user identifier (RNTI), the first RNTI including a system information temporary network user identifier (SI-RNTI) or a temporary network user identifier for EDT (EDT-RNTI).

4. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: receiving third information, the third information being used to indicate resource-related information of the EDT, the resource-related information of the EDT including one or more of the following information: a starting position in a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink resource units (RUs) for transmitting the first information by a single user, a repetition number of the first information, or a time for next data transmission.

5. The method of claim 4, wherein, The RU used for transmitting the first information is determined based on the third information; wherein, when the length of the time domain resource / frequency domain resource indicated by the third information is different, and / or, the number of RUs for transmitting the first information by a single user is different, and / or, the repetition number of the first information is different, the RU used for transmitting the first information is different.

6. The method of claim 5, wherein, When the length of the time domain resource indicated by the third information is 32 milliseconds (ms), the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs for transmitting the first information by a single user is 1, and the repetition number of the first information is 1, the RU used for transmitting the first information includes all or part of RUs in a first RU; The first RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the first RU do not overlap in time-frequency domain resources.

7. The method of claim 5, wherein, When the length of the time domain resource indicated by the third information is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by a single user is 2, and the repetition number of the first information is 1, the RU used for transmitting the first information includes all or part of RUs in a second RU; The second RU includes at least one type of RU, and different types of RUs in the at least one type of RU in the second RU do not overlap in time-frequency domain resources.

8. The method of claim 5, wherein, When the length of the time domain resource indicated by the third information is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by a single user is 2, and the repetition number of the first information is 2, the RU used for transmitting the first information includes all or part of RUs in a third RU; The third RU comprises at least one type of RU, and different types of RU in the at least one type of RU do not coincide in time-frequency domain resources.

9. The method according to any one of claims 5 to 8, characterized in that, Each RU for transmitting the first information corresponds to a different number respectively, and RUs between different numbers do not overlap in time-frequency domain resources.

10. The method according to any one of claims 4 to 9, characterized in that, The third information further comprises an SI-RNTI.

11. The method according to any one of claims 4 to 9, characterized in that, The EDT-RNTI is determined based on the third information.

12. The method according to any one of claims 4 to 11, characterized in that, In a case where the third information is used to indicate a time of next data transmission, the first information is further used to indicate the time of next data transmission by the terminal device. The method further comprises: receiving fourth information, the fourth information being used to indicate RUs required for next data transmission and the second scrambling manner, the second scrambling manner indicating scrambling based on a second RNTI, the second RNTI comprising a cell temporary network user identifier for EDT (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI), and the second information being transmitted based on the RUs required for next data transmission.

13. A data transmission method, characterized by, The method comprises: receiving first information, the first information being based on early data transmission (EDT) transmission, and the first information being scrambled by a first scrambling manner; receiving second information, the second information also being based on EDT transmission, and the second information being scrambled by a second scrambling manner, the first scrambling manner being different from the second scrambling manner.

14. The method of claim 13, wherein, The first information is used to indicate first data, and the first data is data transmitted by a terminal device to a network device for the first time after the terminal device enters an unconnected state. The second information is used to indicate second data, and the second data is data transmitted by the terminal device to the network device again when the terminal device is in the unconnected state.

15. The method of claim 13 or 14, wherein the first scrambling manner indicates scrambling based on a first temporary network user identifier (RNTI), and the first RNTI comprises a system information temporary network user identifier (SI-RNTI) or a temporary network user identifier for EDT (EDT-RNTI).

16. The method according to any one of claims 13 to 15, characterized in that, The method further comprises: transmitting third information, the third information being used to indicate resource-related information of the EDT, and the resource-related information of the EDT comprising one or more of the following: a starting position of a time domain / frequency domain, a length of a time domain resource / frequency domain resource, a number of uplink resource units (RUs) for transmitting the first information by a single user, a number of repetitions of the first information, or a time of next data transmission.

17. The method of claim 16, wherein, RUs for transmitting the first information are determined based on the third information. In a case where the length of the time domain resource / frequency domain resource indicated by the third information is different, and / or the number of RUs for transmitting the first information by a single user is different, and / or the number of repetitions of the first information is different, the RUs for transmitting the first information are different.

18. The method of claim 17, wherein, The third information indicates that the length of the time domain resource is 32 milliseconds (ms), the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kilohertz (kHz), the number of RUs for transmitting the first information by the single user is 1, and the number of repetitions of the first information is 1, and the RUs for transmitting the first information include all or part of the first RUs. The first RUs include at least one type of RU, and different types of RUs in the at least one type of RU in the first RUs do not overlap in time-frequency domain resources.

19. The method of claim 17, wherein, The third information indicates that the length of the time domain resource is 64 ms, the length of the frequency domain resource is 6 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by the single user is 2, and the number of repetitions of the first information is 1, and the RUs for transmitting the first information include all or part of the second RUs. The second RUs include at least one type of RU, and different types of RUs in the at least one type of RU in the second RUs do not overlap in time-frequency domain resources.

20. The method of claim 17, wherein, The third information indicates that the length of the time domain resource is 128 ms, the length of the frequency domain resource is 3 frequency domain subcarriers of 15 kHz, the number of RUs for transmitting the first information by the single user is 2, and the number of repetitions of the first information is 2, and the RUs for transmitting the first information include all or part of the third RUs. The third RUs include at least one type of RU, and different types of RUs in the at least one type of RU in the third RUs do not overlap in time-frequency domain resources.

21. The method according to any one of claims 17 to 20, characterized in that, Each of the RUs for transmitting the first information corresponds to a different number, and RUs with different numbers do not overlap in time-frequency domain resources.

22. The method of any one of claims 16-21, wherein, The third information further includes an SI-RNTI.

23. The method of any one of claims 16-21, wherein, The EDT-RNTI is determined based on the third information.

24. The method of any one of claims 16-23, wherein, In the case where the third information is used to indicate a time for next transmission of data, the first information is further used to indicate the time for next transmission of data by the terminal device. The method further includes: sending fourth information, the fourth information being used to indicate RUs required for next transmission of data and a second scrambling mode, the second scrambling mode indicating scrambling based on a second RNTI, the second RNTI including an EDT cell temporary network user identifier (EDT-C-RNTI) or a cell radio network temporary identifier (C-RNTI), and the number of terminal devices for transmission in the RUs required for the next transmission of data being less than the number of terminal devices for transmission in other RUs.

25. The method of any one of claims 13-24, wherein, After receiving the first information, the method further includes: blind detection of the first information based on a first RNTI and a second RNTI; After receiving the second information, the method further includes: blind detection of the second information based on the first RNTI and the second RNTI.

26. A data transmission device, characterized by The functional modules for implementing the method of any one of claims 1-12, or the functional modules for implementing the method of any one of claims 13-25.

27. A data transmission device, characterized by The data transmission device further comprises a memory for storing the computer program or instructions.

28. The apparatus of claim 27, wherein, The computer readable storage medium stores computer executable instructions for causing the method of any one of claims 1 to 12 to be implemented, or for causing the method of any one of claims 13 to 25 to be implemented, when the computer executable instructions are run on the data transmission device.

29. A computer-readable storage medium, characterized in that, The computer program product comprises instructions for implementing the method of any one of claims 1 to 25.

30. A computer program product, characterised in that, ​

Images