CN112584524A - Multi-user access method and device based on downlink data transmission - Google Patents
Multi-user access method and device based on downlink data transmission Download PDFInfo
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Abstract
The embodiment of the application discloses a multi-user access method and a device based on downlink data transmission, wherein the method comprises the following steps: receiving a pre-access instruction sent by at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics; sending a terminal broadcast signal based on the pre-access instruction, and acquiring the response time of the terminal; and detecting whether the terminal meets a preset condition or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset condition, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal. The technical scheme provided by the embodiment of the application judges whether the requirements are met or not based on the characteristics of the terminal, selects the terminal needing preset conditions to carry out connection and data transmission, ensures the data downloading quality of a plurality of users under the condition of resource permission, and also avoids transmission faults caused by insufficient resources during simultaneous downloading of the plurality of users.
Description
Technical Field
The embodiment of the application relates to the technical field of data transmission, in particular to a multi-user access method and device based on downlink data transmission.
Background
In a wireless communication system, information exchanged between a terminal device and a base station is carried over a physical channel. Uplink data sent by the terminal device is usually carried through an uplink data channel; the uplink control information sent by the terminal device is usually carried through an uplink control channel.
At present, when a plurality of terminal devices are simultaneously accessed to a base station to request data downloading, the base station often does not screen the terminal devices, which easily causes the problems of congestion and the like in transmission between the terminal devices and the base station due to insufficient resources, and causes the defects of data transmission quality reduction and the like.
Disclosure of Invention
The embodiment of the application provides a multi-user access method and device based on downlink data transmission, so that the simultaneous downloading quality of multiple users is guaranteed, and congestion is avoided.
In a first aspect, an embodiment of the present application provides a multi-user access method based on downlink data transmission, including:
receiving a pre-access instruction sent by at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics;
sending a terminal broadcast signal based on the pre-access instruction, and acquiring the response time of the terminal;
and detecting whether the terminal meets a preset condition or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset condition, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
Further, detecting whether the terminal meets a preset condition according to the terminal characteristics and the response time, and receiving a download request from the terminal when the terminal meets the preset condition, wherein the method comprises the following steps:
judging whether the terminal meets a first preset condition or not according to the transmission characteristics of the terminal;
acquiring the number of terminals meeting a first preset condition, and calculating the transmission index of the terminals meeting the first preset condition according to response time and transmission characteristics when the number meets a second preset condition;
sorting the transmission indexes from large to small, selecting terminals with the transmission indexes at the top M as target terminals, and receiving a downloading request from the target terminals, wherein M is a preset value and is a positive integer.
Further, the calculating the transmission index of the terminal meeting the first preset condition according to the response time and the transmission characteristics includes:
obtaining a response grade section where the response time is located according to the response time, obtaining corresponding first response coefficients according to the upper position, the middle position and the lower position of the response time in the response grade section, wherein the response grade section corresponds to a second response coefficient, and calculating according to the first response coefficient and the second response coefficient to obtain a response time index;
obtaining a loss grade section where the path loss is located according to the path loss, obtaining corresponding first loss coefficients according to the upper position, the middle position and the lower position of the path loss in the loss grade section, wherein the loss grade section corresponds to a second loss coefficient, and calculating according to the first loss coefficient and the second loss coefficient to obtain a path loss index;
and solving the sum of the response time index and the path loss index as the transmission index of the terminal.
Further, receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal, includes:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, and each data downloading instruction is provided with a data identifier, downloading time, resolution and data capacity;
and calling corresponding resource data from the corresponding storage area according to the data downloading instruction, and transmitting the resource data to the terminal according to the downloading time.
Further, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the resolution;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling corresponding resource data from the corresponding storage area, wherein the resolution of the resource data is lower than that in the data downloading instruction.
Further, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the data capacity;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling the corresponding resource data from the corresponding storage area, and increasing the transmission process with the terminal.
Further, receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal, includes:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, each data downloading instruction is provided with a data identifier, and the data identifier is used for indicating a data type and a storage area;
and simultaneously processing the data downloading instructions with the same data type received in the target time period, and calling the corresponding resource data from the corresponding storage areas to respectively transmit the resource data to the corresponding terminals.
In a second aspect, an embodiment of the present application provides a multi-user access apparatus based on downlink data transmission, including:
an instruction receiving module: the system comprises a pre-access instruction used for receiving at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics;
a response acquisition module: the terminal is used for sending a broadcast signal to the terminal based on the pre-access instruction and acquiring the response time of the terminal;
a condition comparison module: and the terminal is used for detecting whether the terminal meets preset conditions or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset conditions, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
Further, detecting whether the terminal meets a preset condition according to the terminal characteristics and the response time, and receiving a download request from the terminal when the terminal meets the preset condition, wherein the method comprises the following steps:
judging whether the terminal meets a first preset condition or not according to the transmission characteristics of the terminal;
acquiring the number of terminals meeting a first preset condition, and calculating the transmission index of the terminals meeting the first preset condition according to response time and transmission characteristics when the number meets a second preset condition;
sorting the transmission indexes from large to small, selecting terminals with the transmission indexes at the top M as target terminals, and receiving a downloading request from the target terminals, wherein M is a preset value and is a positive integer.
Further, the calculating the transmission index of the terminal meeting the first preset condition according to the response time and the transmission characteristics includes:
obtaining a response grade section where the response time is located according to the response time, obtaining corresponding first response coefficients according to the upper position, the middle position and the lower position of the response time in the response grade section, wherein the response grade section corresponds to a second response coefficient, and calculating according to the first response coefficient and the second response coefficient to obtain a response time index;
obtaining a loss grade section where the path loss is located according to the path loss, obtaining corresponding first loss coefficients according to the upper position, the middle position and the lower position of the path loss in the loss grade section, wherein the loss grade section corresponds to a second loss coefficient, and calculating according to the first loss coefficient and the second loss coefficient to obtain a path loss index;
and solving the sum of the response time index and the path loss index as the transmission index of the terminal.
Further, receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal, includes:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, and each data downloading instruction is provided with a data identifier, downloading time, resolution and data capacity;
and calling corresponding resource data from the corresponding storage area according to the data downloading instruction, and transmitting the resource data to the terminal according to the downloading time.
Further, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the resolution;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling corresponding resource data from the corresponding storage area, wherein the resolution of the resource data is lower than that in the data downloading instruction.
Further, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the data capacity;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling the corresponding resource data from the corresponding storage area, and increasing the transmission process with the terminal.
Further, receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal, includes:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, each data downloading instruction is provided with a data identifier, and the data identifier is used for indicating a data type and a storage area;
and simultaneously processing the data downloading instructions with the same data type received in the target time period, and calling the corresponding resource data from the corresponding storage areas to respectively transmit the resource data to the corresponding terminals.
In a third aspect, an embodiment of the present application provides a computer device, including: a memory and one or more processors;
the memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for multi-user access based on downlink data transmission according to the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the method for multi-user access based on downlink data transmission according to the first aspect.
According to the embodiment of the application, whether the terminal meets the requirements or not is judged based on the characteristics of the terminal, the terminal needing preset conditions is selected for connection and data transmission, the data downloading quality of a plurality of users can be guaranteed under the condition that resources are allowed, and the transmission fault caused by insufficient resources in the simultaneous downloading of the users can be avoided.
Drawings
Fig. 1 is a flowchart of a multi-user access method based on downlink data transmission according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a multi-user access apparatus based on downlink data transmission according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The embodiment of the invention provides a multi-user access method and a multi-user access device based on downlink data transmission, which judge whether the requirements are met or not based on the characteristics of a terminal, intelligently select the terminal needing preset conditions for connection and data transmission, ensure the data downloading quality of a plurality of users simultaneously under the condition of resource permission, and avoid transmission faults caused by insufficient resources during multi-user simultaneous downloading.
Example one
Fig. 1 shows a flowchart provided in an embodiment of the present application, where the method for multi-user access based on downlink data transmission provided in the embodiment of the present application may be executed by a multi-user access apparatus based on downlink data transmission, and the multi-user access apparatus based on downlink data transmission may be implemented in a hardware and/or software manner and integrated in a computer device.
The following description will be given by taking as an example a method for a multi-user access apparatus based on downlink data transmission to execute a multi-user access method based on downlink data transmission. Referring to fig. 1, the method for multi-user access based on downlink data transmission includes:
s101: receiving a pre-access instruction sent by at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics.
In this embodiment of the present invention, the sending end serving as the downlink data is, for example, a base station, and the group is used to indicate all terminals that can establish a communication connection with the sending end in this embodiment of the present invention. The terminal comprises a smart phone, a tablet personal computer, a computer, intelligent wearable equipment and the like. The receiving end (terminal) in the group actively sends a pre-access instruction to the receiving end, wherein the pre-access instruction is used for indicating the authorization of the receiving end to the transmitting end and indicating that the downloading requirement exists.
The terminal characteristics include a terminal identification code used to indicate uniqueness of the terminal to establish transmission reliability between the terminal and the base station, and transmission characteristics that may correspond to one or more different transmission performance indicators in different implementation scenarios. For example, the transmission characteristics may include path loss. The path loss represents a loss generated in the propagation of data uploaded from the terminal to the receiving terminal. In the embodiment of the present invention, the path loss can be obtained by the transmit-receive ratio of the terminal transmitting data in the past.
S102: and sending a broadcast signal to the terminal based on the pre-access instruction, and acquiring the response time of the terminal.
The broadcast signal is sent by the receiving end and used for informing the terminal that the pre-access instruction of the terminal is received, and the next handshake can be carried out. In fact, after receiving the broadcast signal, the terminal feeds back a feedback signal to the transmitting end, and the response time of the terminal can be obtained according to the feedback signal. If the response time is too long, the connection with the terminal can be disconnected.
S103: and detecting whether the terminal meets a preset condition or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset condition, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
The method comprises the steps of screening the accessed terminals according to conditions, eliminating partial terminals which do not meet the conditions, reducing the number of the terminals accessed simultaneously, and avoiding the problem of reduced transmission quality caused by insufficient transmission resources due to overlarge number of the terminals accessed simultaneously. And for the terminal which does not meet the preset condition, removing the terminal from the connection with the base station.
Specifically, in this embodiment, detecting whether the terminal meets a preset condition according to the terminal characteristic and the response time, and when the preset condition is met, receiving a download request from the terminal includes: judging whether the terminal meets a first preset condition or not according to the transmission characteristics of the terminal; acquiring the number of terminals meeting a first preset condition, and calculating the transmission index of the terminals meeting the first preset condition according to response time and transmission characteristics when the number meets a second preset condition; sorting the transmission indexes from large to small, selecting terminals with the transmission indexes at the top M as target terminals, and receiving a downloading request from the target terminals, wherein M is a preset value and is a positive integer.
As an example of the embodiment of the present invention, the first preset condition is that the path loss is lower than the threshold, or the first preset condition is that the first N received terminals correspond to the access signals, which may be other conditions. The first preset condition is used for primarily screening a part of terminals.
For example, the total number of the accessed terminals is S, and the number of the terminals meeting the first preset condition is S1, the terminals meeting the first preset condition are screened again, and it is determined whether the terminals meet the second preset condition, where the second preset condition is used to represent the number of the terminals, that is, it is determined whether S1 meets the second preset condition. For example, the second preset condition is S2, and only when S1 is less than or equal to S2, it indicates that the terminal meets the second preset condition.
If S1 is larger than S2, re-screening is required according to other conditions so that the number of terminals can meet the requirement of S2.
In the embodiment of the present invention, when the number satisfies a second preset condition, the response time and the transmission characteristics of all terminals that satisfy the first preset condition are obtained, so as to calculate the transmission index of the terminal according to the response time and the transmission characteristics.
Further, in the present embodiment, the transmission characteristics include path loss,
specifically, calculating the transmission index of the terminal meeting the first preset condition according to the response time and the transmission characteristics includes: obtaining a response grade section where the response time is located according to the response time, obtaining corresponding first response coefficients according to the upper position, the middle position and the lower position of the response time in the response grade section, wherein the response grade section corresponds to a second response coefficient, and calculating according to the first response coefficient and the second response coefficient to obtain a response time index; obtaining a loss grade section where the path loss is located according to the path loss, obtaining corresponding first loss coefficients according to the upper position, the middle position and the lower position of the path loss in the loss grade section, wherein the loss grade section corresponds to a second loss coefficient, and calculating according to the first loss coefficient and the second loss coefficient to obtain a path loss index; and solving the sum of the response time index and the path loss index as the transmission index of the terminal.
As an exemplary illustration, assuming that the response time is T seconds, the response level segment is set to 6 level segments according to the actual demand, and T is located in the second response level segment, the second response level corresponds to a second response coefficient of 0.8, and T is located at the upstream position of the second response level segment, and corresponds to a first response coefficient of 0.9, so that the response time index of the response time is 0.8 × 0.9, that is, 0.72. Accordingly, assuming that the path loss is a, the second loss tangent corresponding to the loss class is 0.8, and a is located at the middle position in the loss class, corresponding to the first loss tangent of 0.6, so that the path loss exponent is 0.8 × 0.6, i.e., 0.48.
As a preferred embodiment of the present invention, receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal, includes:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, each data downloading instruction is provided with a data identifier, and the data identifier is used for indicating a data type and a storage area; and simultaneously processing the data downloading instructions with the same data type received in the target time period, and calling the corresponding resource data from the corresponding storage areas to respectively transmit the resource data to the corresponding terminals.
In other embodiments, a download request from a terminal may also be received, where the download request also includes at least one data download instruction, and the data download instruction carries, in addition to a data identifier, download time, resolution, and data capacity. And calling corresponding resource data from the corresponding storage area according to the data downloading instruction, and transmitting the resource data to the terminal according to the downloading time. The download time can be used to indicate that the download is immediate download or download according to the reserved time, so that the base station can send data to the terminal according to the download time, and for the reserved download time, after being recorded, other tasks needing immediate download can be executed first. In the present example, resource data consistent with the resolution and the data identifier is found for calling and sending.
Further, after receiving the download request from the terminal, the method further includes: judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the resolution; when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal; and when the transmission characteristics are not matched with the data characteristics, calling corresponding resource data from the corresponding storage area, wherein the resolution of the resource data is lower than that in the data downloading instruction. The transmission characteristics represent transmission performance, the data characteristics reflect data conditions, the matching performance of the transmission characteristics and the data characteristics is used for indicating whether the transmission of data corresponding to the data characteristics can be met or not under the transmission characteristics, if yes, the matching is indicated, and completely corresponding resource data are called to be transmitted to the terminal according to a data downloading instruction of the downloading request. Otherwise, under the condition of mismatching, the resolution of the required data is reduced, the resolution and the definition are degraded, and the resolution of the acquired resource data is lower than that of the data downloading instruction.
As another exemplary, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the data capacity; when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal; and when the transmission characteristics are not matched with the data characteristics, calling the corresponding resource data from the corresponding storage area, and increasing the transmission process with the terminal. In this example, when the transmission characteristics are not matched with the data characteristics, that is, the transmission characteristics cannot meet the current data downloading requirement, the transmission processes are added, for example, one transmission process originally transmits data, and the transmission processes can be added to two transmission processes, so as to improve the transmission efficiency.
Example two
As shown in fig. 2, an embodiment of the present invention further provides a multi-user access apparatus based on downlink data transmission, including: the instruction receiving module 21 is configured to receive a pre-access instruction sent by at least one terminal in the group, where the pre-access instruction carries terminal characteristics, and the terminal characteristics include a terminal identification code and transmission characteristics; the response acquisition module 22 is configured to send a terminal broadcast signal based on the pre-access instruction, and acquire a response time of the terminal; the condition comparison module 23 is configured to detect whether the terminal meets a preset condition according to the terminal characteristics and the response time, receive a download request from the terminal when the terminal meets the preset condition, and retrieve corresponding resource data according to the download request to transmit the resource data to the terminal.
Further, detecting whether the terminal meets a preset condition according to the terminal characteristics and the response time, and receiving a download request from the terminal when the terminal meets the preset condition, wherein the method comprises the following steps: judging whether the terminal meets a first preset condition or not according to the transmission characteristics of the terminal; acquiring the number of terminals meeting a first preset condition, and calculating the transmission index of the terminals meeting the first preset condition according to response time and transmission characteristics when the number meets a second preset condition; sorting the transmission indexes from large to small, selecting terminals with the transmission indexes at the top M as target terminals, and receiving a downloading request from the target terminals, wherein M is a preset value and is a positive integer.
As a preferred embodiment, the transmission characteristics include path loss, and calculating the transmission index of the terminal meeting the first preset condition according to the response time and the transmission characteristics includes: obtaining a response grade section where the response time is located according to the response time, obtaining corresponding first response coefficients according to the upper position, the middle position and the lower position of the response time in the response grade section, wherein the response grade section corresponds to a second response coefficient, and calculating according to the first response coefficient and the second response coefficient to obtain a response time index; obtaining a loss grade section where the path loss is located according to the path loss, obtaining corresponding first loss coefficients according to the upper position, the middle position and the lower position of the path loss in the loss grade section, wherein the loss grade section corresponds to a second loss coefficient, and calculating according to the first loss coefficient and the second loss coefficient to obtain a path loss index; and solving the sum of the response time index and the path loss index as the transmission index of the terminal.
In the embodiment of the present invention, a download request from a terminal is received, and corresponding resource data is called according to the download request and transmitted to the terminal, which specifically includes the following steps:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, and each data downloading instruction is provided with a data identifier, downloading time, resolution and data capacity; and calling corresponding resource data from the corresponding storage area according to the data downloading instruction, and transmitting the resource data to the terminal according to the downloading time.
Further, for the above example, after receiving the download request from the terminal, the method further includes:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the resolution;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal; and when the transmission characteristics are not matched with the data characteristics, calling corresponding resource data from the corresponding storage area, wherein the resolution of the resource data is lower than that in the data downloading instruction.
In other implementation cases, it may also be determined whether the transmission characteristics are matched with data characteristics of the download request, where the data characteristics are generated by the number of data download instructions of the download request, and download time and data capacity in the data download instructions; when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal; and when the transmission characteristics are not matched with the data characteristics, calling the corresponding resource data from the corresponding storage area, and increasing the transmission process with the terminal.
In further embodiments, it may also be that a download request is received from the terminal, where the download request includes at least one data download instruction, and each data download instruction carries a data identifier, where the data identifier is used to indicate a data type and a storage area; and simultaneously processing the data downloading instructions with the same data type received in the target time period, and calling the corresponding resource data from the corresponding storage areas to respectively transmit the resource data to the corresponding terminals.
Example four
An embodiment of the present application provides a computer device, including: a memory and one or more processors; the memory for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors implement the method for multi-user access based on downlink data transmission according to the first aspect.
EXAMPLE five
In an embodiment of the present application, there is also provided a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the downlink data transmission-based multi-user access method provided in the foregoing embodiment, where the downlink data transmission-based multi-user access method includes: receiving a pre-access instruction sent by at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics; sending a terminal broadcast signal based on the pre-access instruction, and acquiring the response time of the terminal; and detecting whether the terminal meets a preset condition or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset condition, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium containing computer-executable instructions provided in this embodiment of the present application is not limited to the above-described multi-user access method based on downlink data transmission, and may also perform related operations in the multi-user access method based on downlink data transmission provided in any embodiment of the present application.
The downlink data transmission-based multi-user access device, the apparatus, and the storage medium provided in the foregoing embodiments may execute the downlink data transmission-based multi-user access method provided in any embodiment of the present application, and refer to the downlink data transmission-based multi-user access method provided in any embodiment of the present application without detailed technical details described in the foregoing embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. The multi-user access method based on downlink data transmission is characterized by comprising the following steps:
receiving a pre-access instruction sent by at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics;
sending a terminal broadcast signal based on the pre-access instruction, and acquiring the response time of the terminal;
and detecting whether the terminal meets a preset condition or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset condition, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
2. The multi-user access method according to claim 1, wherein detecting whether the terminal meets a preset condition according to the terminal characteristics and the response time, and when the preset condition is met, receiving a download request from the terminal comprises:
judging whether the terminal meets a first preset condition or not according to the transmission characteristics of the terminal;
acquiring the number of terminals meeting a first preset condition, and calculating the transmission index of the terminals meeting the first preset condition according to response time and transmission characteristics when the number meets a second preset condition;
sorting the transmission indexes from large to small, selecting terminals with the transmission indexes at the top M as target terminals, and receiving a downloading request from the target terminals, wherein M is a preset value and is a positive integer.
3. The multi-user access method according to claim 2, wherein the transmission characteristics include path loss, and wherein calculating the transmission index of the terminal meeting the first preset condition according to the response time and the transmission characteristics includes:
obtaining a response grade section where the response time is located according to the response time, obtaining corresponding first response coefficients according to the upper position, the middle position and the lower position of the response time in the response grade section, wherein the response grade section corresponds to a second response coefficient, and calculating according to the first response coefficient and the second response coefficient to obtain a response time index;
obtaining a loss grade section where the path loss is located according to the path loss, obtaining corresponding first loss coefficients according to the upper position, the middle position and the lower position of the path loss in the loss grade section, wherein the loss grade section corresponds to a second loss coefficient, and calculating according to the first loss coefficient and the second loss coefficient to obtain a path loss index;
and solving the sum of the response time index and the path loss index as the transmission index of the terminal.
4. The multi-user access method according to claim 1, wherein receiving a download request from a terminal, and invoking corresponding resource data according to the download request to transmit to the terminal comprises:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, and each data downloading instruction is provided with a data identifier, downloading time, resolution and data capacity;
and calling corresponding resource data from the corresponding storage area according to the data downloading instruction, and transmitting the resource data to the terminal according to the downloading time.
5. The multi-user access method according to claim 4, further comprising, after receiving the download request from the terminal:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the resolution;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling corresponding resource data from the corresponding storage area, wherein the resolution of the resource data is lower than that in the data downloading instruction.
6. The multi-user access method according to claim 1, further comprising, after receiving the download request from the terminal:
judging whether the transmission characteristics are matched with the data characteristics of the downloading request, wherein the data characteristics are generated by the quantity of data downloading instructions of the downloading request, the downloading time in the data downloading instructions and the data capacity;
when the transmission characteristics are matched with the data characteristics, calling corresponding resource data according to the downloading request and transmitting the resource data to the terminal;
and when the transmission characteristics are not matched with the data characteristics, calling the corresponding resource data from the corresponding storage area, and increasing the transmission process with the terminal.
7. The multi-user access method according to claim 1, wherein receiving a download request from a terminal and invoking corresponding resource data according to the download request to transmit to the terminal comprises:
receiving a downloading request from a terminal, wherein the downloading request comprises at least one data downloading instruction, each data downloading instruction is provided with a data identifier, and the data identifier is used for indicating a data type and a storage area;
and simultaneously processing the data downloading instructions with the same data type received in the target time period, and calling the corresponding resource data from the corresponding storage areas to respectively transmit the resource data to the corresponding terminals.
8. A multi-user access device based on downlink data transmission is characterized by comprising:
an instruction receiving module: the system comprises a pre-access instruction used for receiving at least one terminal in a group, wherein the pre-access instruction carries terminal characteristics, and the terminal characteristics comprise a terminal identification code and transmission characteristics;
a response acquisition module: the terminal is used for sending a broadcast signal to the terminal based on the pre-access instruction and acquiring the response time of the terminal;
a condition comparison module: and the terminal is used for detecting whether the terminal meets preset conditions or not according to the terminal characteristics and the response time, receiving a downloading request from the terminal when the terminal meets the preset conditions, and calling corresponding resource data according to the downloading request to transmit the resource data to the terminal.
9. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method for multi-user access based on downlink data transmission according to any one of claims 1 to 7.
10. A storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the method for multi-user access based on downlink data transmission according to any one of claims 1 to 7.
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