CN111294962B - Data transmission method and device, storage medium and terminal - Google Patents
Data transmission method and device, storage medium and terminal Download PDFInfo
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- CN111294962B CN111294962B CN202010120994.6A CN202010120994A CN111294962B CN 111294962 B CN111294962 B CN 111294962B CN 202010120994 A CN202010120994 A CN 202010120994A CN 111294962 B CN111294962 B CN 111294962B
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- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
A data transmission method and device, a storage medium and a terminal are provided, and the method comprises the following steps: judging whether the remaining time residing in the current cell is greater than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing the minimum data transmission; and transmitting the data when the judgment result shows that the remaining time is greater than the preset threshold value. The scheme of the invention can effectively improve the success rate of data transmission and improve the probability of completing one-time communication task.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus, a storage medium, and a terminal.
Background
In a medium-low altitude satellite system, in a scene where a cell moves on the ground, the time for a beam to be visible to User Equipment (UE) is short. Taking an example of a 1200km altitude satellite diameter 60km beams, the time of visibility of one beam to the UE is typically 11 seconds(s).
However, the time required to complete a communication is relatively long, and may occupy half or even more of the time that the beam is visible.
For the UE to access the network and complete the communication process, when one cell is formed by one beam, the process may go through two or more cells, and the narrowband Internet of Things (Narrow Band Internet of Things, NB-IoT) does not support cell handover. Therefore, one communication of the UE may fail at a high probability.
When one cell is composed of a plurality of adjacent beams, the process of accessing the network and completing communication by the UE may experience a plurality of beams, even 2 or more cells, but the transmission of messages 1, 2, 3, 4 (msg 1, msg2, msg3, msg 4) or messages a, B (msgA, msgB) of the access process must be completed within one beam. Therefore, the UE may also fail to communicate with the UE with a high probability.
Disclosure of Invention
The invention solves the technical problem of how to improve the success rate of data transmission and improve the probability of completing one-time communication task.
To solve the foregoing technical problem, an embodiment of the present invention provides a data transmission method, including: judging whether the remaining time residing in the current cell is greater than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing minimum data transmission; and transmitting the data when the judgment result shows that the remaining time is greater than the preset threshold value.
Optionally, the preset threshold is determined according to at least one of the following parameters: data traffic volume; an access type; system round trip delay; a frame structure; the number of repetitions of the data; whether to allow reception of data in a subsequent beam; whether a repetition of a single transport block is allowed to be transmitted on different beams of the same cell.
Optionally, the preset threshold is obtained from a system message or preconfigured; alternatively, the parameters for determining the preset threshold are obtained from the system message and/or preconfigured.
Optionally, before determining whether the remaining time residing in the current cell is greater than the preset threshold, the method further includes: determining the total time period of the current cell covering the UE according to the satellite ephemeris data and the current position of the UE; and calculating the remaining time according to the current time and the total time period, or subtracting the elapsed time of the UE for residing in the current cell so far from the total time period to obtain the remaining time.
Optionally, the determining, according to the satellite ephemeris data and the current location of the UE, a total time period for the current cell to cover the UE includes: determining the satellite to which the current cell belongs according to the incidence relation between the satellite and the cell; acquiring a cell distribution diagram of a satellite to which the current cell belongs based on the satellite ephemeris data; determining the motion trail and time relation of the current cell according to the cell distribution map; and determining the total time period of the UE covered by the current cell by combining the current position of the UE and the motion trail and time relation of the current cell.
Optionally, the association relationship between the satellite and the cell is obtained from the satellite ephemeris data.
Optionally, when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with multiple beams, the transmitting the data includes: the data is transmitted on a current beam, and the reception indication information in the data indicates reception of data on a beam subsequent to the current beam.
Optionally, the transmitting the data in a current beam, and the receiving indication information in the data indicating that the data is received in a beam subsequent to the current beam includes: and selecting the RO and the lead code combination corresponding to the subsequent wave beam to initiate a random access process.
Optionally, when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with multiple beams, after transmitting the data, the method further includes: and if the transmission block repetition of the data received in the current wave beam is not enough to be successfully decoded, continuously receiving the transmission block repetition of the data in the subsequent wave beam of the current wave beam.
Optionally, the current beam and the subsequent beam are beams of the plurality of beams that are configured to allow transmission blocks of data to continue to be received across the beams to be repeated.
Optionally, when the data is used to initiate a random access procedure, the transmitting the data includes: selecting as a current beam a beam of the beams configured to allow for transport block repetition of data to continue to be received across the beams; and initiating a random access process according to the RO and the lead code combination corresponding to the current beam.
Optionally, the current cell is associated with a single beam.
To solve the above technical problem, an embodiment of the present invention further provides a data transmission device, including: the judging module is used for judging whether the remaining time staying in the current cell is greater than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing minimum data transmission; and the transmission module is used for transmitting the data when the judgment result shows that the remaining time is greater than the preset threshold value.
To solve the above technical problem, an embodiment of the present invention further provides a storage medium having stored thereon computer instructions, where the computer instructions execute the steps of the above method when executed.
In order to solve the above technical problem, an embodiment of the present invention further provides a terminal, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to perform the steps of the method.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
an embodiment of the present invention provides a data transmission method, including: judging whether the remaining time residing in the current cell is greater than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing the minimum data transmission; and when the judgment result shows that the remaining time is greater than the preset threshold value, transmitting the data.
Compared with the prior art that the UE initiates data transmission operations such as random access at any time without considering whether the communication can be completed in the current cell or the current beam, the scheme of the embodiment reasonably limits the initiation time of the data transmission operations such as the random access time of the UE, so that the success rate of data transmission is possible to be improved, and the probability of completing one communication task is favorably improved.
Further, when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with a plurality of beams, the transmitting the data includes: the data is transmitted on a current beam, and the reception indication information in the data indicates that data is received on a beam subsequent to the current beam. Thus, by allowing the UE to select a next beam that is not currently visible to receive data such as a random access response, a protocol such as a random access procedure originally stipulates that data that needs to be transmitted in a single beam can succeed in multiple beams, improving the data communication possibilities. Further, whether to allow data reception in the subsequent beam may be configured by a system message, or may be configured as a system parameter in the UE or the UICC.
For the base station, when the remaining time of the current beam after the uplink data transmission is not enough to complete the downlink data reception, if the base station still transmits data in the current beam, on one hand, the communication fails, and on the other hand, resource waste is also caused. When the scheme of the embodiment is adopted, the base station can send data in the subsequent wave beam instead of the current wave beam, which is beneficial to reasonably saving resources by the base station.
Further, when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with multiple beams, after transmitting the data, the method further includes: and if the transmission block repetition of the data received in the current beam is not enough for successful decoding, continuously receiving the transmission block repetition of the data in the subsequent beam of the current beam. Thus, by allowing the UE to continue receiving transport block repetitions of data across the beam, such as repetitions of msg2, msg4, or msgB, the UE is enabled to make full use of all data received, completing procedures such as random access as early as possible. It is possible to achieve both communication success rate and efficiency. Further, the transport block repetition whether to allow the data to continue to be received across the beam may be configured by a system message, or may also be configured as a system parameter to the UE or the UICC.
Further, the transport block repetition of data capable of continuing reception across the beam may be a repeatedly transmitted msg2, msg4, msgB or a subsequent transport block of dedicated channel data.
Drawings
FIG. 1 is a flow chart of a data transmission method of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
Detailed Description
As mentioned in the background, the failure rate of the UE to complete one communication task is high due to the limitation of the cell mobility. Wherein, completing a communication task may refer to: and accessing the network and completing the communication process, such as completing a random access procedure.
In particular, NB-IoT terminals are not equipped with satellite dish antennas and direction tracking systems, but instead commonly use ordinary omni-directional antennas. For a common omnidirectional antenna, uplink needs a single carrier of 3.75kHz, so the duration of a transmission block is relatively long. One transmission of one transport block at 3.75kHz on a single carrier in NB-IoT takes 32ms.
Further, the signals of the satellite system are weak, and the height of a 1200km satellite can reach about-140 dbm. And one transport block signal needs hundreds of times of repetition, and the whole transmission duration of one uplink transport block can reach about 5 seconds by combining the duration required by one transmission of the single transport block.
In addition, round Trip Time (RTT) of the satellite system is relatively large. This further lengthens the communication process, resulting in a single access plus data transmission process that may be on the order of 10 seconds.
As analyzed in the background art, since the UE cannot perform cell handover during accessing the network and completing communication, the transmission of messages 1, 2, 3, and 4 (msg 1, msg2, msg3, and msg 4) or messages a and B (msgA and msgB) of the access procedure must be completed within one beam. In combination with the foregoing analysis, the UE is most likely not able to complete the random access procedure in a single beam, resulting in a very high probability of failure of communication.
On the other hand, the movement of the satellite is predicted, so the movement of the cell or beam is also predicted. The UE moving speed is negligible relative to the moving speed of the cell or beam on the ground as the satellite moves, so only the mobility of the cell as the satellite moves needs to be considered.
The inventor of the present application finds, through analysis, that a large reason for causing the foregoing problem is that the existing UE can initiate data transmission operations such as random access at any time, regardless of whether the current communication can be completed in the current cell or the current beam.
To solve the foregoing technical problem, an embodiment of the present invention provides a data transmission method, including: judging whether the remaining time residing in the current cell is greater than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing the minimum data transmission; and when the judgment result shows that the remaining time is greater than the preset threshold value, transmitting the data.
According to the scheme, the initiation time of the data transmission operation such as the random access time of the UE is reasonably limited, so that the data transmission success rate can be increased, and the probability of completing one communication task is improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a data transmission method according to an embodiment of the present invention.
The scheme of this embodiment may be applied to a scenario where the UE initiates the random access procedure, and the data may be used to initiate the random access procedure. For example, the data may include a Random Access Request (Random Access Request). By adopting the scheme of the embodiment, the UE can complete the random access process as early as possible by improving the success rate of data transmission. In practical application, the scheme of the embodiment can also be applied to other communication task scenarios.
Specifically, referring to fig. 1, the data transmission method according to this embodiment may include the following steps:
step S101, judging whether the remaining time staying in the current cell is larger than a preset threshold value, wherein the preset threshold value is used for representing the minimum time required for finishing the minimum data transmission;
when the determination result in the step S101 is affirmative, that is, the remaining time is greater than the preset threshold, the method further includes a step S102 of transmitting the data.
When the determination result in the step S101 is negative, that is, the remaining time is less than the preset threshold, the data transmission operation is not executed for the while. For example, the step S101 may be executed again after the UE performs cell reselection.
In one implementation, the preset threshold may be determined based on at least one of the following parameters: data traffic volume; an access type; system round trip delay; a frame structure; the number of repetitions of the data; whether to allow reception of data in a subsequent beam; whether a repetition of a single transport block is allowed to be transmitted on different beams of the same cell.
The data traffic may refer to the amount of data that needs to be transmitted for the communication. The approximate size and number of transport blocks to complete the communication may be determined based on a formula or a pre-configured table.
The access type may refer to whether the communication employs four-step random access or two-step random access.
The system round trip delay may refer to the RTT of a satellite system with which the UE communicates to access a communication network maintained by the satellite system.
The frame structure may refer to a physical layer frame structure of a radio air interface Uu.
The number of repetitions of the data may refer to the number of repetitions of each transport block included in the data. For example, in the random access procedure, the repetition number may refer to a repetition number of msg2, msg4, or msgB.
In the random access procedure, the whether to allow data to be received in the subsequent beam may include: whether the UE is allowed to receive msg2 or msg4 in the next beam. Wherein the next beam is a beam with respect to a current beam employed by the UE to transmit msg1, msg3, or msgA.
In the random access procedure, whether to allow the repetition of the single transport block to be transmitted on different beams of the same cell may include: whether the UE is allowed to continue receiving repetitions of msg2, msg4, or msgB in the next beam. Wherein the next beam is a beam with respect to a current beam employed by the UE to transmit msg1, msg3, or msgA.
In one embodiment, the preset threshold may be obtained from a System Information (SI).
Alternatively, the preset threshold may be preconfigured in the UE or a Universal Integrated Circuit Card (UICC).
Alternatively, at least a portion of the aforementioned parameters for determining the preset threshold may be obtained from the system message.
Alternatively, at least a part of the aforementioned parameters for determining the preset threshold may be pre-configured in the UE or the UICC as system parameters.
In one implementation, the preset threshold may be used to ensure that at least 80% of the communications are successfully completed within the time.
Further, the specific value of the preset threshold may vary according to different parameters. For example, if data is allowed to be received on subsequent beams and repetitions of a single transport block are allowed to be transmitted on different beams of the same cell, the preset threshold may be relatively shortened.
In a specific implementation, before the step S101, the method in this embodiment may further include the steps of: determining the total time period of the current cell covering the UE according to the satellite ephemeris data and the current position of the UE; and calculating the remaining time according to the current time and the total time period. Thereby, the remaining time can be accurately determined.
Specifically, the satellite to which the current cell belongs may be determined according to the association relationship between the satellite and the cell. Wherein the association relationship between the satellite and the cell may be obtained from the satellite ephemeris data. Alternatively, the association relationship between the satellite and the cell may be separately included in another data.
Further, a cell distribution map of a satellite to which the current cell belongs may be acquired based on the satellite ephemeris data.
Further, based on the satellite ephemeris data, a motion trajectory and a time relationship of the current cell may be determined from the cell distribution map. And then, in combination with the current location of the UE, a total time period for the current cell to cover the UE may be determined.
In one variation, the total time period may be subtracted by an elapsed time until the UE camped on the current cell to obtain the remaining time.
In one implementation, the current cell may be associated with a single beam. That is, if the current cell is composed of a single beam, data transmission may be performed when it is determined that the remaining time is greater than the preset threshold.
Therefore, the initiation time of data transmission operation such as random access time of the UE is reasonably limited, so that the success rate of data transmission is possible to be improved, and the probability of completing one communication task is favorably improved.
In one implementation, the current cell may be associated with multiple beams, i.e., the current cell may be comprised of multiple beams.
Further, when the determination result of the step S101 is affirmative, the step S102 may include: the data is transmitted on a current beam, and the reception indication information in the data indicates that data is received on a beam subsequent to the current beam.
For example, in the Random Access procedure, the UE may select a combination of a preamble and a time-frequency resource (Physical Random Access Channel Access, abbreviated as RO or PRACH Access) of a Physical Random Access Channel corresponding to the subsequent beam to initiate the Random Access procedure.
In other words, for a UE that is allowed to receive data in a subsequent beam, the UE may choose to transmit the preamble (i.e., msg 1) through the RO corresponding to the subsequent beam.
Further, the subsequent beam may be a beam next to the current beam.
Thus, by allowing the UE to select a next beam, which is not currently visible, to receive data such as a random access response, a protocol such as a random access procedure, which originally stipulates that data that needs to be transmitted in a single beam can succeed in multiple beams, increasing the data communication probability.
Further, whether to allow data reception in the subsequent beam may be configured by a system message, or may be configured as a system parameter in the UE or the UICC.
For the base station, when the remaining time of the current beam after the uplink data transmission is not enough to complete the downlink data reception, if the base station still transmits data in the current beam, on one hand, communication will fail, and on the other hand, resource waste will be caused. When the scheme of the embodiment is adopted, the base station can send data in the subsequent wave beam instead of the current wave beam, which is beneficial to reasonably saving resources by the base station.
In a specific implementation, when the determination result in step S101 is affirmative and the current cell is associated with multiple adjacent beams, after step S102, the method in this embodiment may further include the steps of: and if the transmission block repetition of the data received in the current beam is not enough for successful decoding, continuously receiving the transmission block repetition of the data in the subsequent beam of the current beam.
Specifically, the base station may configure a part of beams of the multiple beams associated with the cell as a Random Access Response (RAR) window to pass through a current beam and a next beam, and pre-configure ROs, preambles, or a combination of ROs and preambles corresponding to the part of beams to the UE.
In executing step S102, the UE may select a beam of the aforementioned beams configured to allow the transport block to continue receiving data across the beams to be repeated as a current beam, and initiate a random access procedure according to an RO and preamble combination corresponding to the current beam.
Thus, the UE may receive random access responses msg2, msg4, or msgB in the current beam. If the repetition of msg2, msg4 or msgB received in the current beam is not successful enough, the repetition of msg2, msg4 or msgB may be received continuously in the next beam according to the satellite operation rules.
Thus, by allowing the UE to continue receiving transport block repetitions of data across beams, such as repetitions of msg2, msg4, or msgB, the UE is enabled to make full use of all received data, completing procedures such as random access as early as possible. It is possible to achieve both communication success rate and efficiency.
Further, the transport block repetition whether to allow the data to continue to be received across the beam may be configured by a system message, or may also be configured as a system parameter to the UE or the UICC.
In one implementation, the transport block repetition of data that can continue to be received across the beam may be a repeatedly transmitted transport block of msg2, msg4, msgB or subsequent dedicated channel data.
Alternatively, the repetition of data that can continue to be received across the beams may also be msg2 and msg4, e.g., receiving msg2 on the current beam and msg4 on the next beam. At this point, the UE is allowed to receive data on the subsequent beam and is also allowed to transmit repetitions of a single transport block on different beams of the same cell.
In one implementation, the corresponding downlink control channel search space on the next beam may be specified according to the current protocol.
Fig. 2 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention. Those skilled in the art understand that the data transmission device 2 according to this embodiment may be used to implement the method technical solution described in the embodiment shown in fig. 1.
Specifically, in this embodiment, the data transmission device 2 may include: a determining module 21, configured to determine whether a remaining time of residing in a current cell is greater than a preset threshold, where the preset threshold is used to represent a minimum time required to complete minimum data transmission; and the transmission module 22 is used for transmitting the data when the judgment result shows that the remaining time is greater than the preset threshold value.
For more contents of the working principle and the working mode of the data transmission device 2, reference may be made to the related description in fig. 1, and details are not repeated here.
Further, the embodiment of the present invention also discloses a storage medium, on which a computer instruction is stored, and when the computer instruction runs, the technical solution of the method described in the embodiment shown in fig. 1 is executed. Preferably, the storage medium may include a computer-readable storage medium such as a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory. The storage medium may include ROM, RAM, magnetic or optical disks, etc.
Further, an embodiment of the present invention further discloses a terminal, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes the technical solution of the method in the embodiment shown in fig. 1 when running the computer instruction. Preferably, the terminal may be a User Equipment (UE).
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method of data transmission, comprising:
judging whether the remaining time residing in the current cell is greater than a preset threshold, wherein the preset threshold is used for representing the minimum time required for completing the minimum data transmission, and the preset threshold is determined according to at least one of the following parameters: the method comprises the steps of determining the specific values of preset thresholds according to different parameters, wherein the specific values of the preset thresholds are different, and the specific values are determined according to different parameters;
and when the judgment result shows that the remaining time is greater than the preset threshold value, transmitting the data.
2. The data transmission method according to claim 1, wherein the preset threshold is obtained from a system message or preconfigured; alternatively, the parameters for determining the preset threshold are obtained from the system message and/or preconfigured.
3. The data transmission method according to claim 1, further comprising, before determining whether the remaining time of camping on the current cell is greater than the preset threshold:
determining the total time period of the current cell covering the UE according to the satellite ephemeris data and the current position of the UE;
and calculating the remaining time according to the current time and the total time period, or subtracting the elapsed time of the UE residing in the current cell so far from the total time period to obtain the remaining time.
4. The data transmission method of claim 3, wherein the determining the total time period for the current cell to cover the UE according to the satellite ephemeris data and the current location of the UE comprises:
determining the satellite to which the current cell belongs according to the incidence relation between the satellite and the cell;
acquiring a cell distribution diagram of a satellite to which the current cell belongs based on the satellite ephemeris data;
determining the motion trail and time relation of the current cell according to the cell distribution map;
and determining the total time period of the current cell covering the UE by combining the current position of the UE and the motion trail and time relation of the current cell.
5. The data transmission method of claim 4, wherein the association between the satellite and the cell is obtained from the satellite ephemeris data.
6. The data transmission method according to claim 1, wherein when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with multiple beams, the transmitting the data comprises:
the data is transmitted on a current beam, and the reception indication information in the data indicates that data is received on a beam subsequent to the current beam.
7. The data transmission method according to claim 6, wherein the transmitting the data on the current beam, and wherein the receiving indication information in the data indicating that the data is received on a beam subsequent to the current beam comprises: and selecting the RO and the lead code combination corresponding to the subsequent wave beam to initiate a random access process.
8. The data transmission method according to any one of claims 1 or 3 to 7, wherein when the determination result indicates that the remaining time is greater than the preset threshold and the current cell is associated with multiple beams, after transmitting the data, the method further comprises:
and if the transmission block repetition of the data received in the current wave beam is not enough to be successfully decoded, continuously receiving the transmission block repetition of the data in the subsequent wave beam of the current wave beam.
9. The data transmission method of claim 8, wherein the current beam and the subsequent beam are beams of the plurality of beams that are configured to allow transmission block repetition for continued reception of data across the beams.
10. The data transmission method according to claim 9, wherein when the data is used for initiating a random access procedure, the transmitting the data comprises:
selecting as a current beam a beam of the beams configured to allow for transport block repetition of data to continue to be received across the beams;
and initiating a random access process according to the RO and the lead code combination corresponding to the current beam.
11. The data transmission method of claim 1, wherein the current cell is associated with a single beam.
12. A data transmission apparatus, comprising:
a determining module, configured to determine whether remaining time of camping in a current cell is greater than a preset threshold, where the preset threshold is used to represent minimum time required for completing minimum data transmission, and the preset threshold is determined according to at least one of the following parameters: the method comprises the following steps of determining the specific values of preset thresholds by combining different parameters, wherein the specific values of the preset thresholds are different, the specific values comprise data communication amount, access type, system round-trip delay, frame structure, data repetition times, whether to allow data to be received in subsequent wave beams and whether to allow the repetition of a single transmission block to be transmitted on different wave beams of the same cell;
and the transmission module is used for transmitting the data when the judgment result shows that the remaining time is greater than the preset threshold value.
13. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 11.
14. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor executes the computer instructions to perform the steps of the method of any one of claims 1 to 11.
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| CN202010120994.6A CN111294962B (en) | 2020-02-26 | 2020-02-26 | Data transmission method and device, storage medium and terminal |
| PCT/CN2021/074325 WO2021169727A1 (en) | 2020-02-26 | 2021-01-29 | Data transmission method and apparatus, storage medium, and terminal |
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| CN111294962B (en) * | 2020-02-26 | 2022-12-20 | 展讯通信（上海）有限公司 | Data transmission method and device, storage medium and terminal |
| CN111917451B (en) * | 2020-07-10 | 2022-09-06 | 华力智芯(成都)集成电路有限公司 | Data transmission method and device, satellite module and storage medium |
| CN112020084B (en) * | 2020-07-21 | 2021-07-20 | 北京邮电大学 | Two-step random access channel design and signal detection method in satellite scene |
| CN114765821A (en) * | 2021-01-15 | 2022-07-19 | 展讯通信（上海）有限公司 | Data transmission method, cell residence method, device and medium |
| CN115967426A (en) * | 2021-10-09 | 2023-04-14 | 华为技术有限公司 | Method and device for transmitting data |
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| WO2021169727A1 (en) | 2021-09-02 |
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