WO2022109805A1

WO2022109805A1 - Data transmission method and apparatus, communication device and storage medium

Info

Publication number: WO2022109805A1
Application number: PCT/CN2020/131226
Authority: WO
Inventors: 朱亚军
Original assignee: 北京小米移动软件有限公司
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2022-06-02
Also published as: CN112585888B; CN112585888A

Abstract

The embodiments of the present disclosure provide a data transmission method and apparatus, a communication device and a storage medium. Said method is applied to a terminal, and comprises: determining time information of data transmission, the time information being used for indicating a time when a terminal performs communication by means of a service satellite.

Description

Data transmission method and device, communication device and storage medium

technical field

The embodiments of the present disclosure relate to the field of wireless communication, but are not limited to the field of wireless communication, and in particular, relate to a data transmission method and apparatus, a communication device, and a storage medium.

Background technique

In the field of wireless communication, satellite communication is gradually utilized. Satellite communication refers to the communication carried out by ground radio communication equipment using satellites as relays. The satellite communication system consists of satellite part and ground part. Satellite communication has the advantages of large communication range and not easy to be affected by land disasters. However, limited by the number of satellites, it is difficult for satellite communication to achieve all-weather coverage. At the same time, some satellites do not have inter-satellite links, so that the data of the terminal cannot be transmitted in real time, or the transmission fails or is missed during the transmission process.

SUMMARY OF THE INVENTION

The present disclosure provides a data transmission method and apparatus, a communication device and a storage medium.

According to a first aspect of the embodiments of the present disclosure, a data transmission method is provided, and the method is applied to a terminal, including:

Time information of data transmission is determined, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.

In some embodiments, the determining the time information of data transmission includes:

reporting the location information of the terminal to the base station; wherein the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

The time information delivered by the base station is received.

In some embodiments, the method further includes:

In response to the existence of data to be sent, buffering the data to be sent;

The to-be-sent data is sent within the time period indicated by the time information.

In some embodiments, the buffering of the data to be sent in response to the existence of the data to be sent includes:

In response to the existence of data to be sent, recombining the data to be sent into data packets to be sent according to the time information;

The to-be-sent data packets are buffered.

In some embodiments, in response to the existence of data to be sent, reorganizing the data to be sent into data packets to be sent according to the time information, including:

In response to the existence of data to be sent, the data to be sent within a predetermined time period is recombined into the data packet to be sent; wherein, the data packet is sent for the predetermined time period; wherein, the predetermined time period is agreed by the protocol or specified by the base station.

In some embodiments, the data packet to be sent includes: identification information; the identification information is at least used to identify a predetermined transmission sequence of data to be sent in the data packet to be sent.

In some embodiments, the sending the data to be sent within the time period indicated by the time information includes:

Within the time period determined by the time information, at least part of the data to be sent is carried in a message for random access and sent to the base station.

In some embodiments, the message for random access includes: indication information for indicating whether there is data to be sent other than the data to be sent carried in the message for random access.

In some embodiments, if the indication information indicates that there is data to be sent other than the data to be sent carried in the message for random access, the message for random access further includes: The amount of data to be sent in the message for random access.

According to a second aspect of the embodiments of the present disclosure, a data transmission method is provided. The method is applied to a base station, including:

receiving the location information of the terminal;

Determine the serving satellite of the terminal according to the location information of the terminal;

According to the serving satellite, time information for the terminal to communicate via the serving satellite is determined.

In some embodiments, the method further includes:

In response to the existence of data to be sent, caching the data to be sent;

The to-be-delivered data is sent within the time period indicated by the time information.

In some embodiments, the buffering of the data to be delivered in response to the existence of the data to be delivered includes:

In response to the existence of data to be delivered, reorganize the data to be delivered into data packets to be delivered according to the time information;

The to-be-delivered data packets are cached.

In some embodiments, in response to the existence of data to be delivered, reorganizing the data to be delivered into data packets to be delivered according to the time information, including:

In response to the existence of data to be delivered, the data to be delivered within a predetermined time period is reorganized into the to-be-delivered data packet; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.

In some embodiments, the data packet to be delivered includes: identification information; the identification information is at least used to identify a predetermined transmission sequence of the data to be delivered in the data packet to be delivered.

In some embodiments, the method further includes:

Within the time period indicated by the time information, receive the data to be sent reported by the terminal.

In some embodiments, the receiving data to be sent reported by the terminal within the time period indicated by the time information includes:

Within the time period determined by the time information, a message for random access sent by the terminal is received, wherein the message for random access carries at least part of the data to be sent by the terminal.

In some embodiments, the message for random access includes: indication information for indicating whether there is data to be sent other than the data to be sent carried in the message for random access; the method Also includes:

In response to the indication information in the message for random access indicating that there is data to be sent other than the data to be sent carried in the message for random access, a resource for instructing the terminal to send data is issued. dispatch instructions; or

In response to the indication information in the message for random access indicating that there is no data to be sent except the data to be sent carried in the message for random access, stop delivering the schedule within a predetermined period of time instruction; wherein, the duration of the predetermined period is less than or equal to the duration indicated by the time information.

According to a third aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus, where the apparatus is applied to a terminal, including:

The first determining module is configured to determine time information of data transmission, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.

In some embodiments, the first determining module includes:

a first reporting submodule, configured to report the location information of the terminal to the base station; wherein the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

The first receiving sub-module is configured to receive the time information sent by the base station.

In some embodiments, the apparatus further includes:

a first cache module, configured to cache the to-be-sent data in response to the existence of the to-be-sent data;

A first sending module, configured to send the data to be sent within the time period indicated by the time information.

In some embodiments, the first cache module includes:

a first reorganization submodule, configured to reorganize the to-be-sent data into to-be-sent data packets according to the time information in response to the existence of the to-be-sent data;

The first buffering submodule is configured to buffer the to-be-sent data packets.

In some embodiments, the first recombination submodule includes:

The second reorganization submodule is configured to, in response to the existence of the data to be sent, reorganize the data to be sent within a predetermined time period into the data packet to be sent; wherein the predetermined time period is stipulated by the protocol or specified by the base station.

In some embodiments, the sending module includes:

The first sending submodule is configured to carry at least part of the data to be sent in a message for random access and send it to the base station within a period determined by the time information.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a data transmission apparatus, where the apparatus is applied to a base station, including:

a first receiving module, configured to receive the location information of the terminal;

The second determining module is configured to determine the serving satellite of the terminal according to the position information of the terminal;

The third determining module is configured to determine, according to the serving satellite, time information for the terminal to communicate via the serving satellite.

In some embodiments, the apparatus further includes:

a second cache module, configured to cache the data to be sent in response to the existence of the data to be sent;

The second sending module is configured to send the to-be-delivered data within the time period indicated by the time information.

In some embodiments, the second cache module includes:

a third reorganization sub-module, configured to reorganize the data to be sent into data packets to be sent according to the time information in response to the existence of the data to be sent;

The second cache sub-module is configured to cache the to-be-delivered data packets.

In some embodiments, the third recombination submodule includes:

The fourth reorganization submodule is configured to, in response to the existence of data to be distributed, reorganize the data to be distributed within a predetermined time period into the data packet to be distributed; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.

In some embodiments, the apparatus further includes:

The second receiving module is configured to receive the data to be sent reported by the terminal within the time period indicated by the time information.

In some embodiments, the second receiving module includes:

The second receiving sub-module is configured to receive, within a period determined by the time information, a message for random access sent by the terminal, where the message for random access carries at least part of the terminal's waiting message. send data.

In some embodiments, the message for random access includes: indication information for indicating whether there is data to be sent other than the data to be sent carried in the message for random access; the apparatus Also includes:

A sending module, configured to, in response to the indication information in the message for random access indicating that there is data to be sent other than the data to be sent carried in the message for random access, to send an instruction to send A scheduling instruction for the resource on which the terminal sends data; or

A stopping module, configured to stop within a predetermined period in response to the indication information in the message for random access indicating that there is no data to be sent except the data to be sent carried in the message for random access The scheduling instruction is issued; wherein, the duration of the predetermined period is less than or equal to the duration indicated by the time information.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a communication device, the communication device including at least: a processor and a memory for storing executable instructions that can be executed on the processor, wherein:

When the processor is used to run the executable instructions, the executable instructions execute the steps in any of the above data transmission methods.

According to a sixth aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, any of the above-mentioned A step in a data transmission method.

Embodiments of the present disclosure provide a data transmission method and apparatus, a communication device, and a storage medium. Through the technical solutions of the embodiments of the present disclosure, by determining the time when the terminal communicates through the serving satellite, the terminal or the base station can select the time for data transmission, thereby solving the problem of data transmission in the case of limited satellite coverage of the terminal and reducing data transmission. The occurrence of errors and data leakage.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the embodiments of the invention.

FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

FIG. 2 is a flowchart 1 of a data transmission method according to an exemplary embodiment;

3 is a second flowchart of a data transmission method according to an exemplary embodiment;

FIG. 4 is a third flowchart of a data transmission method according to an exemplary embodiment;

5 is a structural block diagram 1 of a data transmission apparatus according to an exemplary embodiment;

6 is a second structural block diagram of a data transmission apparatus according to an exemplary embodiment;

FIG. 7 is a schematic structural diagram 1 of a communication device according to an exemplary embodiment;

FIG. 8 is a second schematic structural diagram of a communication device according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments are not intended to represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the present disclosure, as recited in the appended claims.

The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments, and are not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

To better describe any embodiment of the present disclosure, an embodiment of the present disclosure takes an application scenario of access control as an example for illustrative description.

Please refer to FIG. 1 , which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1 , the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .

The terminal 11 may be a device that provides voice and/or data connectivity to the user. The terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a The computer of the IoT terminal, for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device. For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal, user terminal, user agent, user device, or user equipment (terminal). Alternatively, the terminal 11 may also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless terminal connected to an external trip computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.

The base station 12 may be a network-side device in a wireless communication system. Wherein, the wireless communication system may be the 4th generation mobile communication (4G) system, also known as the Long Term Evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system. Alternatively, the wireless communication system may also be a next-generation system of the 5G system. Among them, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).

The base station 12 may be an evolved base station (eNB) used in the 4G system. Alternatively, the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU). The centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.

A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.

In some embodiments, an E2E (End to End, end-to-end) connection may also be established between the terminals 11 . For example, V2V (vehicle to vehicle, vehicle-to-vehicle) communication, V2I (vehicle to Infrastructure, vehicle-to-roadside equipment) communication and V2P (vehicle to pedestrian, vehicle-to-person) communication in vehicle-to-everything (V2X) communication etc. scene.

In some embodiments, the above wireless communication system may further include a network management device 13 .

Several base stations 12 are respectively connected to the network management device 13 . Wherein, the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc. The implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.

The emergence of new Internet applications such as a new generation of AR (Augmented Reality), VR (Virtual Reality), and vehicle-to-vehicle communication has put forward higher requirements for wireless communication technology, driving the continuous evolution of wireless communication technology. meet the needs of the application. At present, cellular mobile communication technology is in the evolution stage of a new generation technology. An important feature of the new generation technology is to support flexible configuration of multiple business types. Because different business types have different requirements for wireless communication technology, such as eMBB (Enhanced Mobile Broadband, Enhanced Mobile Broadband) business types mainly focus on large bandwidth, high speed, etc.; URLLC (Ultra-reliable and Low Latency Communications, The main requirements of the high reliability and low delay communication) business type focus on high reliability and low delay; the main requirements of the mMTC (Massive MachineType Communication, large-scale machine type communication) business type focus on the large number of connections. . Therefore, the new generation of wireless communication system needs a flexible and configurable design to support the transmission of various service types.

In wireless communication technology, satellite communication is an important aspect of future wireless communication technology development. Satellite communication refers to the communication carried out by radio communication equipment on the ground using satellites as relays. The satellite communication system consists of a satellite part and a ground part. The characteristics of satellite communication are: the communication range is large; as long as the radio waves emitted by the satellite cover the range, communication can be carried out from any two points; it is not easily affected by land disasters (high reliability). As a complement to current terrestrial cellular communication systems, satellite communications can have the following benefits:

First, extended coverage: For areas that cannot be covered by the current cellular communication system or have high coverage costs, such as oceans, deserts, remote mountainous areas, etc., satellite communication can be used to solve the communication problem.

Second, emergency communication: Under the condition that the cellular communication infrastructure is unavailable in extreme cases such as disasters such as earthquakes, satellite communication can be used to quickly establish a communication connection.

Third, provide industry applications: For example, for delay-sensitive services of long-distance transmission, the delay of service transmission can be reduced by means of satellite communication.

It is foreseeable that in the future wireless communication system, the satellite communication system and the terrestrial cellular communication system will gradually realize the deep integration, and truly realize the intelligent connection of all things.

Based on the fusion of the above-mentioned satellite communication system and terrestrial communication system, as shown in FIG. 2 , an embodiment of the present disclosure provides a data transmission method, and the method is applied in a terminal, including:

Step S101: Determine time information of data transmission, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.

In a terrestrial communication system, data transmission is usually based on scheduling, that is, the base station instructs the terminal to send or receive data at the indicated time-frequency resource position through a scheduling instruction. In addition, the base station may also pre-configure resources for the terminal to transmit or receive data, and the terminal transmits or receives data at the corresponding time-frequency resource position based on the configuration information.

For satellite communication, it can effectively solve the coverage problem in specific scenarios. For example, the Internet of Things business is an important application business of satellite communications. Connectivity problems in remote or isolated scenarios can be solved through satellite communications. In the early stage of low-orbit satellite deployment, due to the limited number of satellites, all-weather coverage could not be achieved, and at the same time, some satellites did not have interstellar links. In this case, data transmission cannot be implemented for the terminal of the Internet of Things.

Based on this, the embodiments of the present disclosure provide the above method, by determining the time information of data transmission, to determine the timing when the satellite provides the data transmission service to complete the data transmission.

Here, the time information is used to indicate the time when the terminal communicates through the serving satellite. The serving satellite may provide ephemeris information including one or more target satellites, and the one or more target satellites are used to establish a communication connection with the terminal and realize data transmission of the terminal. Satellite ephemeris information contains satellite service availability and other user-related information. Therefore, the time information can be determined according to the ephemeris information, that is, the time information and the ephemeris information have a correlation, and an exemplary embodiment of this correlation can be at least one of the following:

The ephemeris information of the satellite includes the coverage and coverage time of the data communication service; the time information is determined according to the relationship between the terminal's own position and the above-mentioned coverage and coverage time;

The ephemeris information of the satellite may include user information of the terminal, and service time corresponding to the user information, etc., and the time information may be determined according to the above-mentioned service time of the terminal.

The terminal may determine the above-mentioned time information according to the obtained ephemeris information, or the base station may determine the time information according to the obtained ephemeris information and obtain the time information indicated by the base station.

After the terminal acquires the above time information, it can determine the time at which it can use the serving satellite for data communication, so that when there is data to be transmitted, data transmission is performed according to the time information. In this way, phenomena such as abnormal terminal data transmission or data leakage caused by limited satellite coverage are reduced, and the reliability of data transmission is improved.

In some embodiments, as shown in FIG. 3 , the determining the time information of data transmission includes:

Step S201, reporting the location information of the terminal to the base station; wherein, the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

Step S202: Receive the time information sent by the base station.

Here, the time information at which the serving satellite of the terminal performs data communication is determined by the base station. The terminal reports its own position information to the base station, and the base station can search for the information of the corresponding target satellite according to the position information of the terminal, and determine the above-mentioned time information according to the obtained ephemeris information of the target satellite.

Therefore, the terminal can receive the time information sent by the base station by reporting its own location information to the base station, and can send and receive data according to the time information.

Exemplarily, before data transmission is required, the terminal may report its own location information to the base station, and receive time information delivered by the base station according to the location information. If the terminal determines through the time information that it is currently possible to communicate through the serving satellite, it can directly send the data to be transmitted based on the scheduling of the base station; The data to be transmitted is sent again when the period of communication is available.

In another embodiment, the terminal may report its own location information once every predetermined period of time, receive time information sent by the base station, and then determine the time period during which it performs data communication according to the time information.

In this way, the terminal can obtain the time information that can be used for data communication through the serving satellite by reporting its own position information, and then perform data communication according to the time information. On the one hand, it reduces the amount of computation for determining the time information by itself, and improves processing efficiency; on the other hand, it reduces the failure of data transmission and the situation of missing data.

In some embodiments, the method further includes:

In response to the existence of data to be sent, buffering the data to be sent;

Since the terminal may not be able to perform data communication through the serving satellite at any time, if there is data to be sent, the terminal may perform data buffering first. According to the determined time information that can be used for data communication through the serving satellite, the time period for sending the data to be sent is selected.

In one embodiment, when there is data to be sent, the time information can be used to determine whether it is currently in a time period for data communication, and if so, the data to be sent can be directly sent based on the scheduling of the base station; if it is not currently in data communication time period, the data to be sent is cached, and the data to be sent is transmitted through the satellite according to the time period indicated by the time information that can communicate with the satellite.

In another embodiment, when there is data to be sent, the data to be sent may be directly buffered. If the time information indicates that it is currently in the time period for data communication, the buffered data to be sent will be sent; if the time information indicates that it is not currently in the time period that data communication can be carried out, the data to be sent will be suspended until the data communication can be carried out. period, and then send the buffered data to be sent. It can reduce the judgment of the processing method of the data to be sent, and cache it uniformly, thereby improving the reliability of data processing.

In the above manner, by caching the data to be sent, the data transmission is delayed when the coverage of the serving satellite is limited, thereby reducing the phenomenon of abnormal data transmission and missing data transmission.

The to-be-sent data packets are buffered.

In the embodiment of the present disclosure, the data to be sent may be reassembled into one or more data packets to be sent. The reassembled data packets to be sent can be sent within the time period indicated by the time information. Therefore, the data volume of the reassembled data packet to be sent may be less than or equal to the data volume that can be sent for the duration of the period indicated by the time information. In this way, within the time period indicated by the time information, the terminal can send at least one data packet to be sent.

If the data volume of the data to be sent is relatively large, it can be packaged into multiple data packets to be sent by means of recombination, and sent within a time period or multiple time periods indicated by the time information.

The reorganization of the data to be sent here includes, but is not limited to, reorganization of the data to be sent through data compression.

In one embodiment, the method further includes:

Before the time period indicated by the time information, the data to be sent is recombined to obtain the data packet to be sent; in this way, when the time indicated by the time information that can communicate with the satellite arrives, based on the scheduling of the base station, the direct It is enough to send the formed data packets to be sent, so as to increase the transmission rate and make full and effective use of the time period that can communicate with the satellite.

Here, the reorganization of the data to be sent may include a process of organizing the data according to the data type or data within a predetermined period of the data and packaging the data into data packets to be sent.

In response to the existence of data to be sent, the data to be sent within a predetermined time period is reassembled into the data packet to be sent; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.

In this embodiment of the present disclosure, data packets within a predetermined period of time may be reorganized and buffered. The predetermined duration may be agreed by the protocol or preset by the terminal, or may be obtained through signaling issued by the base station. The predetermined time length may be an absolute time length, for example, n milliseconds; it may also be a logical time length, for example, m time slots, and so on.

When the terminal needs to send data, it can reorganize the data to be sent within a predetermined time period to form a data packet, and send it according to the time-frequency resources indicated by the base station within the time period corresponding to the time information.

Considering that when the data to be sent is sent within the time period indicated by the time information that the terminal can perform data transmission through the serving satellite, there may be a delay relative to the scheduled sending time of the data to be sent itself. Or the predetermined sending order of each data packet in the data to be sent may have changed, etc. Therefore, in the process of reorganizing the data to be sent to generate a data packet, the predetermined sending sequence of the data to be sent can be carried in the data packet through the identification information, so as to inform the receiving end of the rules or when the data to be sent is predetermined. It is sent to the receiving end so as to facilitate the subsequent processing by the receiving end.

Here, the predetermined sending time may be the time when the data to be sent is generated, or may be the time inherent in the data to be sent. The predetermined sending order may be the order in which the data to be sent is generated, or may be priority information contained in the data to be sent, or the like.

In addition, the identification information may include a user identification, a network identification and other various identification information in addition to the predetermined transmission sequence, so that the receiving end can identify the source of the data through the identification information.

During the time period determined by the time information, the serving satellite of the terminal can provide communication services to the terminal, and therefore, the terminal can send data to be sent through the serving satellite.

Here, the terminal may send the above data to be sent in the random access process. That is, the data to be sent is carried in a message for random access and sent to the base station. Exemplarily, the terminal may send the above-mentioned data to be sent by using MSG3, MSG1, or Msg A in an MSG (Message, random access message).

The above-mentioned message for random access may also include indication information while carrying the data to be sent. The indication information can be used to indicate whether there is still data to be sent that is not carried in the current message. In this way, it is convenient for the base station to perform targeted resource scheduling according to the indication information.

For example, if the indication information indicates that there is no data to be sent in the future, after receiving the current message, the base station may not schedule time-frequency resources for a period of time; if the indication information indicates that there is still data to be sent in the future, the base station may The corresponding time-frequency resources are scheduled for sending data, so that the terminal can continue to send data.

In this way, when there is no data to be sent subsequently, unnecessary scheduling instructions of the base station can be reduced, signaling overhead is saved, and the efficiency of data transmission is improved.

When the terminal uses the above message for random access to carry the data to be sent to the base station, the message may also carry an indication of whether there is data to be sent subsequently, that is, in addition to the message carried in the random access message data to be sent other than the data to be sent. If the indication information indicates that there is subsequent data to be sent, the data amount of the subsequent data to be sent may be carried at the same time. For example, in the message for random access, the first data packet of data to be sent is carried, and it also carries an indication that there is a second data packet to be sent. At this time, the data size of the second data packet to be sent can also be indicated at the same time.

In this way, it is convenient for the base station to schedule time-frequency resources of an appropriate size according to the indication information to provide the terminal to continue to transmit subsequent data packets, which improves the data transmission efficiency.

As shown in FIG. 4 , an embodiment of the present disclosure provides a data transmission method, and the method is applied in a base station, including:

S301. Receive location information of a terminal;

S302, according to the location information of the terminal, determine the serving satellite of the terminal;

S303. Determine, according to the serving satellite, time information for the terminal to communicate through the serving satellite.

Here, the time information at which the serving satellite of the terminal performs data communication is determined by the base station. The base station receives the position information reported by the terminal, and the base station can search for the information of the corresponding target satellite according to the position information of the terminal, and determine the above-mentioned time information according to the obtained ephemeris information of the target satellite.

The base station can determine the serving satellite of the terminal when receiving the location information of the terminal. The base station can also deliver time information to the terminal for the terminal to determine the time to upload data.

S302. Determine the serving satellite of the terminal according to the location information of the terminal, which may include:

According to the location information of the terminal, a satellite whose coverage includes the terminal is selected as the serving satellite of the terminal.

For example, if the terminal is located within the coverage of multiple satellites, according to the location information of the terminal, a satellite within the coverage and capable of providing the maximum communication bandwidth or the maximum transmission rate is selected as the serving satellite of the terminal.

The base station may also not deliver the above time information, but only deliver data to the terminal according to the time information.

In some embodiments, the method further includes:

In response to the existence of data to be sent, caching the data to be sent;

In the embodiment of the present disclosure, when the base station has data to be sent to the terminal, the data to be sent may be sent according to the time information within the period during which the serving satellite of the terminal can perform data communication.

Similar to the terminal uploading data, the base station can directly deliver the data or delay the delivery of the data according to the time information. In this way, due to the limited coverage of the serving satellite, the abnormal data sent by the base station or the inability of the terminal to receive the data is reduced, and the reliability of data transmission is improved.

The to-be-delivered data packets are cached.

When the base station has data to be delivered, the data to be delivered can also be reorganized and buffered, and delivered to the terminal within the time period indicated by the time information.

In one embodiment, the base station can reorganize the data to be sent into data packets to be sent, and if it is within the time period indicated by the time information when reorganized into data packets to be sent, it can directly send the data to be sent. Data packet; if it is not currently within the time period indicated by the time information, it will wait for the time period indicated by the time information to arrive before sending it.

In another embodiment, the base station can also determine, according to the time information, whether the data to be delivered is within the time period indicated by the time information, and if it is within the time period, the base station does not perform reorganization and packaging, and directly delivers the data to be delivered. to the terminal; if it is not within this time period, reassemble and package the data packets to be sent, and wait for the time period indicated by the arrival time information to send the data packets to be sent that have been reassembled and packaged.

In response to the existence of data to be delivered, the data to be delivered within a predetermined duration is reorganized into the to-be-delivered data packet; wherein the predetermined duration is less than or equal to the duration indicated by the time information.

In this embodiment of the present disclosure, data packets within a predetermined period of time may be reorganized and buffered. The predetermined time length may be an absolute time length, for example, n milliseconds; it may also be a logical time length, for example, m time slots, and so on.

When the base station needs to deliver data, it can reorganize the data to be sent within a predetermined period of time to form a data packet, and deliver the reorganized data packet within the time period corresponding to the time information.

In some embodiments, the to-be-delivered data packet includes: identification information; the identification information is at least used to identify a predetermined sending time of the to-be-delivered data in the to-be-delivered data packet before the reorganization is performed .

Considering that when the terminal sends the data to be delivered within the time period indicated by the time information that the terminal can perform data transmission through the serving satellite, there may be a delay relative to the scheduled sending time of the data to be delivered itself. Therefore, in the process of reorganizing the data to be sent to generate a data packet, the predetermined sending time of the data to be sent can be carried in the data packet through the identification information, so that the terminal can identify the time of the data to be sent and carry out subsequent deal with.

Here, the predetermined sending time may be the time when the data to be delivered is generated, or may be the time included in the data to be delivered.

In addition, the identification information may include user identification, network identification and other various identification information in addition to the scheduled sending time, so that the terminal can identify the source of the data through the identification information.

In some embodiments, the method further includes:

The base station can deliver data to the terminal within the time period indicated by the above time information, and can also receive data reported by the terminal. The data to be sent reported by the terminal can be generated in real time and sent directly based on the scheduling of the base station, or it can be generated before the time period indicated by the time information, and is sent to the base station under the scheduling of the base station when the time period arrives. .

Within the period determined by the time information, a message for random access sent by the terminal is received, wherein the message for random access carries at least part of the data to be sent by the terminal.

In the embodiment of the present disclosure, the base station receives the data to be sent reported by the terminal during the random access process of the terminal. That is, the data to be sent is carried in a message for random access and sent to the base station. Exemplarily, the terminal may send the above-mentioned data to be sent through MSG3 or MSG1 in an MSG (Message, random access message). Therefore, the base station can acquire the data reported by the terminal through the random access message during the random access process of the terminal.

When the terminal sends the data to be sent during the random access process, the random access message may also include indication information. The base station can learn whether the terminal has yet to send data to be sent through the indication information.

If there is unsent data to be sent, a scheduling instruction can be sent to the terminal to schedule the time-frequency resources for the terminal to continue sending data; if there is no data to be sent subsequently, the base station can stop sending scheduling instructions within a predetermined period of time, thereby saving information Reduce overhead and improve data transmission efficiency.

Embodiments of the present disclosure also provide a data transmission method, which is applied to a terminal, including:

determine the serving satellite of the terminal;

obtaining ephemeris information of the serving satellite;

Based on the ephemeris information, data transmission is performed.

In some embodiments, the determining the serving satellite of the terminal includes:

According to the location information of the terminal, the serving satellite of the terminal is determined.

In some embodiments, the data transmission based on ephemeris information includes:

The ephemeris information includes time information; wherein, the time information is used to indicate the time when the terminal communicates through the serving satellite;

The data transmission is performed according to the time information.

Here, the terminal can obtain the information of its own serving satellite through the base station, and can also determine the serving satellite according to the predetermined service. According to the serving satellite, the terminal can obtain the ephemeris information corresponding to the serving satellite. The ephemeris information may include user information of the terminal, service time corresponding to the user information, and the like. The terminal can determine, according to the ephemeris information of the serving satellite, in which time periods the serving satellite can provide services for itself, and in which time periods the coverage of the serving satellite is limited.

Therefore, the terminal can determine the time information at which the terminal can perform data transmission through the ephemeris information of the serving satellite, and perform data transmission according to the time period indicated by the time information.

In an embodiment, the terminal may report its own location information to the base station, and the base station determines the serving satellite corresponding to the terminal according to the location information. The base station can also determine the serving satellite of the terminal and the ephemeris information corresponding to the serving satellite, and send it to the terminal, and then the terminal confirms the above time information and transmits data according to the time information.

In this way, the terminal can transmit the data to be transmitted within the time period when the serving satellite can provide the data transmission service, thereby reducing the occurrence of data transmission failure, repeated attempts to send data, and missing data transmission due to limited coverage of the serving satellite.

The embodiments of the present disclosure also provide the following examples:

1. Determine the time information for data transmission. The base station and the terminal need to know the time information that the terminal can transmit or receive data. The time information may be absolute time point information or time window information. This can be achieved in the following ways:

Method 1: Terminal Confirmation

The terminal obtains the ephemeris information of the serving satellite, determines the target satellite and sends the time. The serving satellite may contain ephemeris information for one or more satellites. The ephemeris information includes the availability of satellite services and other information related to user access.

Method 2: Determine the base station

The terminal reports its own location information, and the base station notifies the terminal of target satellite information and sending time information based on the location information of the terminal. The information used for notification may be UE-specific information, or may be public information for a group of users. The information can be notified to the terminal through RRC signaling, MAC CE or physical layer signaling.

2. Data cache

Data within a predetermined period of time is buffered and data packets are reassembled. The predetermined duration may be preset, or may be notified to the terminal by the base station through signaling. The predetermined duration may be an absolute duration or a logical duration.

When the terminal needs to send data, the terminal will reassemble the data packets that need to be sent within a predetermined period of time to form a data packet, and send it at the time-frequency resource position indicated or configured by the base station.

When the terminal needs to receive data, the base station will reorganize the data packets that need to be sent within a predetermined period of time to form one or more data packets, and add identification information to the data packets. The identification information can be time information. To indicate when the packet itself is scheduled to be sent.

3. Data transmission

Send buffered data during random access:

When the terminal needs to send data, the terminal sends the reassembled data in MSG3 of the random access procedure.

Indication information indicating whether there is subsequent data to be sent by the terminal:

The terminal adds information indicating whether there is still data to be sent to MSG1 or MSG3 of the random access process. When there is data to be sent, it can also carry the information of the size of the data packet, so as to facilitate the scheduling of data transmission by the base station.

When the terminal indicates that there is no data to be sent, the base station does not send a scheduling instruction to the terminal within a predetermined period.

As shown in FIG. 5 , an embodiment of the present disclosure further provides a data transmission apparatus 500, which is applied in a terminal and includes:

The first determining module 501 is configured to determine time information of data transmission, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.

In some embodiments, the first determining module includes:

a first reporting submodule, configured to report the location information of the terminal to the base station; wherein, the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

In some embodiments, the apparatus further includes:

In some embodiments, the first cache module includes:

In some embodiments, the first recombination submodule includes:

The second reorganization submodule is configured to, in response to the existence of the data to be sent, reorganize the data to be sent within a predetermined time period into the data packet to be sent; wherein the predetermined time length is stipulated by the protocol or specified by the base station.

In some embodiments, the sending module includes:

As shown in FIG. 6 , an embodiment of the present disclosure further provides a data transmission apparatus 600, which is applied in a base station and includes:

The first receiving module 601 is configured to receive the location information of the terminal;

The second determining module 602 is configured to determine the serving satellite of the terminal according to the location information of the terminal;

The third determining module 603 is configured to determine, according to the serving satellite, time information for the terminal to communicate via the serving satellite.

In some embodiments, the apparatus further includes:

In some embodiments, the second cache module includes:

In some embodiments, the third recombination submodule includes:

In some embodiments, the to-be-delivered data packet includes: identification information; the identification information is at least used to identify a predetermined transmission sequence of the to-be-distributed data in the to-be-delivered data packet.

In some embodiments, the apparatus further includes:

In some embodiments, the second receiving module includes:

Regarding the apparatus in the above-mentioned embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

FIG. 7 is a structural block diagram of a communication device provided by an embodiment of the present disclosure. The communication device may be a terminal. For example, communication device 700 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.

7, the communication device 700 may include at least one of the following components: a processing component 702, a memory 704, a power supply component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and Communication component 716 .

The processing component 702 generally controls the overall operation of the communication device 700, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 702 may include at least one processor 720 to execute instructions to perform all or part of the steps of the above-described methods. Additionally, processing component 702 may include at least one module that facilitates interaction between processing component 702 and other components. For example, processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702.

Memory 704 is configured to store various types of data to support operation at communication device 700 . Examples of such data include instructions for any application or method operating on the communication device 700, contact data, phonebook data, messages, pictures, videos, and the like. Memory 704 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power supply component 706 provides power to various components of communication device 700 . Power supply components 706 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to communication device 700 .

Multimedia component 708 includes a screen that provides an output interface between the communication device 700 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect wake-up time and pressure associated with the touch or swipe action. In some embodiments, multimedia component 708 includes a front-facing camera and/or a rear-facing camera. When the communication device 700 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 710 is configured to output and/or input audio signals. For example, audio component 710 includes a microphone (MIC) that is configured to receive external audio signals when communication device 700 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 704 or transmitted via communication component 716 . In some embodiments, audio component 710 also includes a speaker for outputting audio signals.

The I/O interface 712 provides an interface between the processing component 702 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 714 includes at least one sensor for providing various aspects of status assessment for communication device 700 . For example, the sensor assembly 714 can detect the open/closed state of the device 700, the relative positioning of components, such as the display and keypad of the communication device 700, the sensor assembly 714 can also detect the communication device 700 or a component of the communication device 700 The position of the communication device 700 changes, the presence or absence of user contact with the communication device 700, the orientation or acceleration/deceleration of the communication device 700, and the temperature change of the communication device 700. Sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 716 is configured to facilitate wired or wireless communication between communication device 700 and other devices. Communication device 700 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 716 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 716 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, communication device 700 may be implemented by at least one application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate An array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above method.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium including instructions, such as memory 704 including instructions, executable by processor 720 of communication device 700 to accomplish the above method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

As shown in FIG. 8 , an embodiment of the present disclosure shows the structure of another communication device. The communication device may be the base station involved in the embodiment of the present disclosure. For example, the communication device 800 may be provided as a network device. 8, the communication device 800 includes a processing component 822, which further includes at least one processor, and a memory resource, represented by memory 832, for storing instructions executable by the processing component 822, such as an application program. An application program stored in memory 832 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 822 is configured to execute instructions to perform any of the aforementioned methods applied to the communication device.

The communication device 800 may also include a power supply assembly 826 configured to perform power management of the communication device 800, a wired or wireless network interface 850 configured to connect the communication device 800 to a network, and an input output (I/O) interface 858 . Communication device 800 may operate based on an operating system stored in memory 832, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any modifications, uses, or adaptations of the invention that follow the general principles of the invention and include common general knowledge or techniques in the art not disclosed in this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

It should be understood that the present invention is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

A data transmission method, wherein the method is applied to a terminal, comprising:

Time information of data transmission is determined, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.
The method according to claim 1, wherein said determining the time information of data transmission comprises:

reporting the location information of the terminal to the base station; wherein the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

The time information delivered by the base station is received.
The method of claim 1, wherein the method further comprises:

In response to the existence of data to be sent, buffering the data to be sent;

The to-be-sent data is sent within the time period indicated by the time information.
The method according to claim 3, wherein, in response to the existence of data to be sent, buffering the data to be sent comprises:

In response to the existence of data to be sent, recombining the data to be sent into data packets to be sent according to the time information;

The to-be-sent data packets are buffered.
The method according to claim 4, wherein in response to the existence of data to be sent, reorganizing the data to be sent into data packets to be sent according to the time information, comprising:

In response to the existence of data to be sent, the data to be sent within a predetermined time period is reassembled into the data packet to be sent; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.
The method according to claim 4 or 5, wherein the data packet to be sent includes: identification information; the identification information is at least used to identify a predetermined transmission sequence of data to be sent in the data packet to be sent.
The method according to any one of claims 3 to 6, wherein the sending the data to be sent within the time period indicated by the time information comprises:

Within the time period determined by the time information, at least part of the data to be sent is carried in a message for random access and sent to the base station.
The method according to claim 7, wherein the message for random access comprises: an indication for indicating whether there is data to be sent other than the data to be sent carried in the message for random access information.
The method according to claim 8, wherein, if the indication information indicates that there is data to be sent other than the data to be sent carried in the message for random access, the message for random access It also includes: the data amount of the to-be-sent data that is not carried in the message for random access.
A data transmission method, wherein the method is applied to a base station, comprising:

Receive the location information of the terminal;

Determine the serving satellite of the terminal according to the location information of the terminal;

According to the serving satellite, time information for the terminal to communicate via the serving satellite is determined.
The method of claim 10, wherein the method further comprises:

In response to the existence of data to be sent, caching the data to be sent;

The to-be-delivered data is sent within the time period indicated by the time information.
The method according to claim 11, wherein the buffering of the data to be delivered in response to the existence of the data to be delivered comprises:

In response to the existence of data to be delivered, reorganize the data to be delivered into data packets to be delivered according to the time information;

The to-be-delivered data packets are cached.
The method according to claim 12, wherein, in response to the existence of data to be delivered, reorganizing the data to be delivered into data packets to be delivered according to the time information, comprising:

In response to the existence of data to be delivered, the data to be delivered within a predetermined time period is reorganized into the to-be-delivered data packet; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.
The method according to claim 12 or 13, wherein the to-be-delivered data packet includes: identification information; the identification information is at least used to identify the scheduled transmission of the to-be-delivered data in the to-be-delivered data packet sequence.
The method according to any one of claims 10 to 14, wherein the method further comprises:

Within the time period indicated by the time information, receive the data to be sent reported by the terminal.
The method according to claim 15, wherein the receiving the data to be sent reported by the terminal within the time period indicated by the time information comprises:

Within the period determined by the time information, a message for random access sent by the terminal is received, wherein the message for random access carries at least part of the data to be sent by the terminal.
The method according to claim 16, wherein the message for random access comprises: an indication for indicating whether there is data to be sent other than the data to be sent carried in the message for random access information; the method further includes:

In response to the indication information in the message for random access indicating that there is data to be sent other than the data to be sent carried in the message for random access, a resource for instructing the terminal to send data is issued. dispatch instructions; or

In response to the indication information in the message for random access indicating that there is no data to be sent except the data to be sent carried in the message for random access, stop delivering the schedule within a predetermined period of time instruction; wherein, the duration of the predetermined period is less than or equal to the duration indicated by the time information.
A data transmission device, wherein the device is applied to a terminal, comprising:

The first determining module is configured to determine time information of data transmission, wherein the time information is used to indicate the time when the terminal communicates through the serving satellite.
The apparatus according to claim 18, wherein the first determining module comprises:

a first reporting submodule, configured to report the location information of the terminal to the base station; wherein the location information is used for the base station to determine the time information for the terminal to communicate through the serving satellite;

The first receiving sub-module is configured to receive the time information sent by the base station.
The apparatus of claim 18, wherein the apparatus further comprises:

a first cache module, configured to cache the to-be-sent data in response to the existence of the to-be-sent data;

A first sending module, configured to send the data to be sent within the time period indicated by the time information.
The apparatus according to claim 20, wherein the first cache module comprises:

a first reorganization submodule, configured to reorganize the to-be-sent data into to-be-sent data packets according to the time information in response to the existence of the to-be-sent data;

The first buffering submodule is configured to buffer the to-be-sent data packets.
The device according to claim 21, wherein the first recombination submodule comprises:

The second reorganization submodule is configured to, in response to the existence of the data to be sent, reorganize the data to be sent within a predetermined time period into the data packet to be sent; wherein the predetermined time period is stipulated by the protocol or specified by the base station.
The apparatus according to claim 21 or 22, wherein the data packet to be sent includes: identification information; the identification information is at least used to identify a predetermined transmission sequence of data to be sent in the data packet to be sent.
The device according to any one of claims 20 to 23, wherein the sending module comprises:

The first sending submodule is configured to carry at least part of the data to be sent in a message for random access and send it to the base station within the time period determined by the time information.
The apparatus according to claim 24, wherein the message for random access comprises: an indication for indicating whether there is data to be sent other than the data to be sent carried in the message for random access information.
The apparatus according to claim 25, wherein if the indication information indicates that there is data to be sent other than the data to be sent carried in the message for random access, the message for random access It also includes: the data amount of the to-be-sent data that is not carried in the message for random access.
A data transmission device, wherein the device is applied to a base station, comprising:

a first receiving module, configured to receive the location information of the terminal;

a second determining module, configured to determine the serving satellite of the terminal according to the location information of the terminal;

The third determining module is configured to determine, according to the serving satellite, time information for the terminal to communicate via the serving satellite.
The apparatus of claim 27, wherein the apparatus further comprises:

a second cache module, configured to cache the data to be sent in response to the existence of the data to be sent;

The second sending module is configured to send the to-be-delivered data within the time period indicated by the time information.
The apparatus of claim 28, wherein the second cache module comprises:

a third reorganization sub-module, configured to reorganize the data to be distributed into data packets to be distributed according to the time information in response to the existence of the data to be distributed;

The second cache sub-module is configured to cache the to-be-delivered data packets.
device according to claim 29, wherein, the third reorganization submodule, comprises:

The fourth reorganization submodule is configured to, in response to the existence of data to be distributed, reorganize the data to be distributed within a predetermined time period into the data package to be distributed; wherein, the predetermined time period is stipulated by the protocol or specified by the base station.
The device according to claim 29 or 30, wherein the data packet to be delivered includes: identification information; the identification information is at least used to identify the scheduled transmission of the data to be delivered in the data packet to be delivered sequence.
The apparatus of any one of claims 27 to 31, wherein the apparatus further comprises:

The second receiving module is configured to receive the data to be sent reported by the terminal within the time period indicated by the time information.
The apparatus of claim 32, wherein the second receiving module comprises:

The second receiving sub-module is configured to receive, within the time period determined by the time information, a message for random access sent by the terminal, where the message for random access carries at least part of the terminal's waiting message. send data.
The apparatus according to claim 33, wherein the message for random access comprises: an indication for indicating whether there is data to be sent other than the data to be sent carried in the message for random access information; the apparatus further includes:

A sending module, configured to, in response to the indication information in the message for random access indicating that there is data to be sent other than the data to be sent carried in the message for random access, to send an instruction to send A scheduling instruction for the resource on which the terminal sends data; or

A stopping module, configured to stop within a predetermined period in response to the indication information in the message for random access indicating that there is no data to be sent except the data to be sent carried in the message for random access Issue the scheduling instruction; wherein, the duration of the predetermined period is less than or equal to the duration indicated by the time information.
A communication device, wherein the communication device includes at least: a processor and a memory for storing executable instructions that can run on the processor, wherein:

When the processor is used to run the executable instructions, the executable instructions execute the steps in the data transmission method provided by any one of claims 1 to 9 or 10 to 17.
A non-transitory computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, any one of the above claims 1 to 9 or 10 to 17 is realized. A step in a provided data transfer method.