CN112689308B - Multi-user wireless data transmission method, system, device and storage medium - Google Patents
Multi-user wireless data transmission method, system, device and storage medium Download PDFInfo
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Abstract
The application discloses a multi-user wireless data transmission method, a system, equipment and a storage medium, wherein the multi-user wireless data transmission method comprises the following steps: acquiring the signal intensity and the number of a plurality of wireless terminal devices; inquiring grouping strategies corresponding to the signal intensity and the number of the current wireless terminal devices in the preset grouping strategies; and carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy. The method and the device aim to solve the problems that a plurality of signal noises are easily introduced when a plurality of wireless terminal devices with large signal intensity difference are transmitted simultaneously, so that the whole throughput is reduced when multiple users transmit simultaneously, and the transmission efficiency of the whole system is influenced.
Description
Technical Field
The present invention relates to the field of wireless data transmission, and in particular, to a method, system, device, and storage medium for multi-user wireless data transmission.
Background
Wi-Fi 6 (formerly: 802.11. Ax), a sixth generation wireless network technology, is the name of the Wi-Fi standard. Is a wireless local area network technology that the Wi-Fi alliance has established from the IEEE 802.11 standard. Wi-Fi 6 will allow communication with up to 8 devices, up to 9.6Gbps.
An OFDMA (Orthogonal Frequency Division Multiple Access) technology specified by the 802.11AX protocol can achieve simultaneous transmission of Multiple wireless terminals, in an actual usage scenario, a wireless AP (all called wireless Access point, translated into a wireless Access point) is connected to Multiple wireless STAs (all called Station, translated into a Station) terminals, and the AP senses that the RSSI (all called Received Signal Strength Indication) Signal Strength of each STA has a great difference due to the positions of the STA terminals and the distances from the STA terminals to the AP. If a plurality of wireless STA terminals with large RSSI signal strength difference transmit simultaneously, no matter uplink or downlink transmission is carried out, the requirement on the power control capability of an AP or an STA is high, and if the power control is inaccurate, a lot of signal noise is introduced, so that the overall throughput is reduced when multiple users transmit simultaneously, and the transmission efficiency of the whole system is influenced.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
Disclosure of Invention
The embodiment of the application aims to solve the problems that a plurality of signal noises are easily introduced when a plurality of wireless STA terminals with large signal intensity difference transmit simultaneously, so that the overall throughput is reduced when multiple users transmit simultaneously and the transmission efficiency of the whole system is influenced.
The embodiment of the application provides a multi-user wireless data transmission method, which comprises the following steps:
acquiring the signal intensity and the number of a plurality of wireless terminal devices;
inquiring grouping strategies corresponding to the signal intensity and the number of the current wireless terminal devices in the preset grouping strategies;
and carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy.
In some embodiments, further comprising: and acquiring the preset grouping strategy.
In some embodiments, the obtaining the signal strength and the number of the plurality of wireless terminal devices comprises:
acquiring signal strength of a plurality of wireless terminal devices;
and classifying the signal intensities of the plurality of wireless terminal devices according to a preset signal intensity classification table, and counting the number of the wireless terminal devices in each signal intensity classification.
In some embodiments, the signal strength ranking table comprises a first signal strength ranking less than a lower signal strength threshold and a second signal strength ranking greater than or equal to the lower signal strength threshold.
In some embodiments, the signal strength ranking table comprises a third signal strength ranking less than a lower signal strength threshold, a fourth signal strength ranking greater than an upper signal strength threshold, and a fifth signal strength ranking greater than or equal to the lower signal strength threshold and less than or equal to the upper signal strength threshold.
In some embodiments, the fifth signal strength rating comprises a plurality of sixth signal strength ratings of the same signal strength range.
In some embodiments, the querying, in the preset grouping policy, the grouping policy corresponding to the signal strength and the number of the current plurality of wireless terminal devices includes:
and inquiring the relation between the number of the wireless terminal equipment with single signal intensity classification and a preset number threshold value or the relation between the number of the wireless terminal equipment with a plurality of signal intensity classifications with similar signal intensities and the preset number threshold value in a preset grouping strategy to obtain a grouping strategy corresponding to the signal intensity classification conditions of a plurality of current wireless terminal equipment.
The present application further provides a multi-user wireless data transmission system, including:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the signal intensity and the number of a plurality of wireless terminal devices;
the inquiry module is used for inquiring the grouping strategies corresponding to the signal intensity and the number of the current plurality of wireless terminal equipment in the preset grouping strategies;
and the distribution module is used for carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy.
The application also provides a multi-user wireless data transmission device, which comprises a processor, a memory electrically connected with the processor and a multi-user wireless data transmission program stored on the memory and capable of running on the processor; the multi-user wireless data transmission program realizes the steps of the multi-user wireless data transmission method when being executed by the processor.
The present application also proposes a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the multi-user wireless data transmission method.
According to the method, the signal intensity and the number of the wireless terminal devices are acquired, the grouping strategy corresponding to the signal intensity and the number of the current wireless terminal devices is inquired in the preset grouping strategy, wireless data transmission is carried out on the wireless terminal devices according to the grouping strategy, the signal intensity of each group of the wireless terminal devices which are transmitted simultaneously is close, the problems that signal noise is introduced due to too large difference of the signal intensity of the wireless terminal devices which are transmitted simultaneously and overall throughput is affected are solved, the overall throughput under a multi-user concurrent scene can be improved, reasonable scheduling of wireless spectrum resources is achieved, and the purpose of utilizing the spectrum to the maximum extent is achieved.
Drawings
FIG. 1 is a hardware block diagram of an embodiment of a multi-user wireless data transmission apparatus of the present application;
fig. 2 is a block flow diagram of an embodiment of a multi-user wireless data transmission method of the present application;
FIG. 3 is a block flow diagram of one embodiment of step 100 in FIG. 2;
FIG. 4 is a block flow diagram of another embodiment of a multi-user wireless data transmission method of the present application;
fig. 5 is a block diagram of an embodiment of a multi-user wireless data transmission system according to the present application.
Detailed Description
In order to better understand the above technical solution, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Wireless AP (Access Point): i.e., a wireless access point, which is used for the wireless switch of the wireless network and is also the core of the wireless network. The wireless AP is an access point for a mobile computer user to enter a wired network, is mainly used in broadband families, buildings and parks, and can cover dozens of meters to hundreds of meters.
Today, WIFI (Wireless Fidelity) technology has been developed to the sixth generation, namely WIFI6, also known as 802.11AX technology. In order to improve the user experience of the user terminal in the dense scene, the 802.11AX introduces an OFDMA (Orthogonal Frequency Division Multiple Access) technology. The technology divides the limited bandwidth into RUs (Resource Units) with different sizes, different user terminals allocate different RUs, thus the limited bandwidth can be provided for a plurality of users at the same time, the utilization efficiency of frequency spectrum resources is improved, and the performance of a multi-user scene system is improved. Wherein the protocol specifies RU sizes that can be used for resource allocation as: 26-tone,52-tone,106-tone,242-tone,484-tone,996-tone. Of which 26-tone (24 Data subcarriers, 2 Pilot subcarriers) is the smallest RU unit, i.e., 2mhz,996-tone is the largest allocable RU unit. Although the 802.11AX protocol specifies the size of an allocable RU unit, it does not specify how an AP should allocate RU units to multiple ues, and it is necessary to allocate RU units reasonably in a multi-user concurrent scenario to achieve the purpose of maximizing the use of spectrum resources.
The OFDMA technology specified by the 802.11AX protocol can realize simultaneous transmission of multiple wireless terminals, in an actual usage scenario, multiple wireless STA terminals may be connected to one AP, and the AP perceives that the RSSI signal strength of each STA may be greatly different depending on the location of the STA terminal and the distance from the AP. If a plurality of wireless STA terminals with greatly different RSSI signal strengths transmit simultaneously, no matter uplink or downlink transmission is performed, the requirement on the power control capability of an AP or an STA is high, and if the power control is inaccurate, a lot of signal noises are introduced, so that the overall throughput is reduced when multiple users transmit simultaneously, and the transmission efficiency of the whole system is influenced.
Therefore, there is a need to solve the problem that when a plurality of wireless STA terminals with large signal strength difference transmit simultaneously, a lot of signal noise is easily introduced, which causes the overall throughput to decrease when multiple users transmit simultaneously, and affects the transmission efficiency of the entire system. In view of the above, the present application provides a method, a system, a device and a storage medium for multi-user wireless data transmission.
Referring to fig. 1, a multi-user wireless data transmission apparatus is described below, which may include: a processor 1001, such as a CPU, a memory 1005, a user interface 1003, a network interface 1004, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include an input unit such as a keypad (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the multi-user wireless data transmission apparatus configuration shown in fig. 1 does not constitute a limitation of multi-user wireless data transmission apparatus and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a multi-user wireless data transmission program. The operating system is a program for managing and controlling hardware and software resources of the multi-user wireless data transmission equipment and supports the running of the multi-user wireless data transmission program and other software or programs.
In the multi-user wireless data transmission apparatus shown in fig. 1, the user interface 1003 is mainly used for receiving a preset grouping policy; the network interface 1004 is mainly used for the background server and performs data communication with the background server; the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and perform the steps of the multi-user wireless data transmission method as described above.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
acquiring the signal intensity and the number of a plurality of wireless terminal devices;
inquiring grouping strategies corresponding to the signal intensity and the number of the current wireless terminal devices in the preset grouping strategies;
and carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
and acquiring the preset grouping strategy.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
the acquiring the signal strength and the number of the plurality of wireless terminal devices comprises:
acquiring signal strength of a plurality of wireless terminal devices;
and classifying the signal intensities of the plurality of wireless terminal devices according to a preset signal intensity classification table, and counting the number of the wireless terminal devices in each signal intensity classification.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
the signal strength ranking table includes a first signal strength ranking that is less than a lower signal strength threshold and a second signal strength ranking that is greater than or equal to the lower signal strength threshold.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
the signal strength ranking table includes a third signal strength ranking less than a lower signal strength threshold, a fourth signal strength ranking greater than an upper signal strength threshold, and a fifth signal strength ranking greater than or equal to the lower signal strength threshold and less than or equal to the upper signal strength threshold.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
the fifth signal strength rating comprises a plurality of sixth signal strength ratings of equal signal strength range.
In one embodiment, the processor 1001 may be configured to invoke the multi-user wireless data transmission program stored in the memory 1005 and execute the method comprising:
the querying of the grouping strategy corresponding to the signal strength and the number of the current wireless terminal devices in the preset grouping strategy comprises the following steps:
and inquiring the relation between the number of the wireless terminal equipment with single signal intensity classification and a preset number threshold value or the relation between the number of the wireless terminal equipment with a plurality of signal intensity classifications with similar signal intensities and the preset number threshold value in a preset grouping strategy to obtain a grouping strategy corresponding to the signal intensity classification conditions of a plurality of current wireless terminal equipment.
According to the multi-user wireless data transmission equipment, the grouping strategy corresponding to the signal intensity and the number of the current multiple wireless terminal equipment is inquired in the preset grouping strategy by acquiring the signal intensity and the number of the multiple wireless terminal equipment, wireless data transmission is carried out on the multiple wireless terminal equipment according to the grouping strategy, the signal intensity of each group of multiple wireless terminal equipment which are simultaneously transmitted is close, the problems that signal noise is introduced due to too large difference of the signal intensity of the multiple wireless terminal equipment which are simultaneously transmitted and the overall throughput is influenced are solved, the overall throughput under a multi-user concurrent scene can be improved, reasonable scheduling of wireless spectrum resources is achieved, and the purpose of utilizing the spectrum to the maximum extent is achieved.
Referring to fig. 2, based on the hardware architecture of the multi-user wireless data transmission device, a first embodiment of the multi-user wireless data transmission method of the present application is provided below, where the multi-user wireless data transmission method includes the following steps:
s100, acquiring the signal intensity and the number of a plurality of wireless terminal devices;
the OFDMA technology specified by the 802.11AX protocol can realize simultaneous transmission of multiple wireless end devices, but the signal strength of each wireless end device perceived by the ap may vary greatly depending on the location of the wireless end device and the distance from the ap. And the difference between the signal strengths of the wireless terminal devices leads to the introduction of a lot of signal noises, which leads to the reduction of the overall throughput when multiple users transmit simultaneously, and affects the transmission efficiency of the whole system. Therefore, the signal strength of a plurality of wireless terminal devices should be acquired, the wireless terminal devices are subjected to preliminary grading according to the signal strength, the number of the wireless terminal devices of each signal strength grading is determined, and a basis is provided for determining the grouping strategy of the wireless terminal devices in the next step.
Referring to fig. 3, specifically, step S100 includes:
s110, acquiring signal intensity of a plurality of wireless terminal devices;
specifically, a broadcast packet sent by the wireless terminal device can be received through a wireless interface of the multi-user wireless data transmission device, and the signal strength of a wireless signal sent by the wireless terminal device and attribute information of the wireless terminal device are obtained through analysis from the broadcast packet. And records the signal strength of the wireless signal transmitted by the wireless terminal device and the attribute information of the wireless terminal device. The attribute information includes a name of the wireless terminal device and a wireless local area network standard used by the wireless terminal device.
S120, according to a preset signal intensity grading table, grading the signal intensities of the wireless terminal devices, and counting the number of the wireless terminal devices in each signal intensity grading.
In some embodiments, the preset signal strength ranking table may include a first signal strength ranking less than a lower signal strength threshold and a second signal strength ranking greater than or equal to the lower signal strength threshold. For example, a lower signal strength threshold of-90 dBm may be set. When the acquired signal intensity of the wireless terminal equipment is lower than-90 dBm, dividing the signal intensity of the corresponding wireless terminal equipment into a first signal intensity grade; when the acquired signal strength of the wireless terminal device is greater than or equal to-90 dBm, the signal strength of the corresponding wireless terminal device is classified into a second signal strength classification. The number of wireless terminal devices in the first signal strength ranking and the second signal strength ranking is counted. It should be understood that the specific values of the lower limit of the signal strength threshold are only listed here for the purpose of better understanding the technical solution of the present embodiment by those skilled in the art. And should not be construed as limiting the lower limit of the signal strength threshold.
In order to divide the signal strength of the wireless terminal device more finely, in some other embodiments, the preset signal strength classification table may include a third signal strength classification smaller than a lower signal strength threshold, a fourth signal strength classification larger than an upper signal strength threshold, and a fifth signal strength classification larger than or equal to the lower signal strength threshold and smaller than or equal to the upper signal strength threshold.
For example, the lower signal strength threshold may be set at-80 dBm and the upper signal strength threshold may be set at-35 dBm. When the obtained signal intensity of the wireless terminal equipment is lower than-80 dBm, dividing the signal intensity of the corresponding wireless terminal equipment into a third signal intensity grade; when the acquired signal intensity of the wireless terminal equipment is greater than-35 dBm, dividing the signal intensity of the corresponding wireless terminal equipment into a fourth signal intensity grade; when the acquired signal strength of the wireless terminal device is within the interval of [ -80dBm, -35dBm ], the signal strength of the corresponding wireless terminal device is classified into a fifth signal strength class. The number of wireless terminal devices in the first signal strength ranking and the second signal strength ranking is counted. It should be understood that the specific values of the upper signal strength threshold and the lower signal strength threshold are only listed here for those skilled in the art to better understand the technical solution of the present embodiment. And should not be construed as limiting the lower limit of the signal strength threshold.
Further, the fifth signal strength hierarchy may be further subdivided such that the signal strength differences between signal strength hierarchies within the fifth signal strength hierarchy are smaller and the signal strength differences between wireless terminal devices of the same group are smaller in subsequent groupings. For example, referring to table 1, RSSI1 corresponds to the second signal strength rating and RSSI11 corresponds to the first signal strength rating. The fifth signal strength rating may comprise a plurality of sixth signal strength ratings of the same signal strength range. For example, in the interval of the fifth signal strength grading of [ -80dBm, -35dBm ], there may be set [ -80dBm, -75dBm ],...., (-40 dBm, -35dBm ], that is, a total of 9 sixth signal strength gradings of RSSI2-RSSI 10.
S200, inquiring grouping strategies corresponding to the signal intensity and the number of the current wireless terminal devices in the preset grouping strategies;
after the signal strength of the wireless terminal devices are classified by using the signal strength classification table, the present embodiment determines whether the wireless terminal devices with similar signal strength classifications can be divided into the same group according to the preset number threshold, so that the signal strength of each group of multiple wireless terminal devices transmitted simultaneously is similar.
As for the signal strength ranking table with less signal strength rankings, there are a signal strength ranking table including the first signal strength ranking and the second signal strength ranking, and a signal strength ranking table including the third signal strength ranking, the fourth signal strength ranking, and the fifth signal strength ranking, as listed in step S120. Wireless terminal devices belonging to the same signal strength class are set as the same group for wireless data transmission.
The present embodiment is explained based on a signal strength ranking table in which there are many signal strength rankings. Specifically, the relation between the number of wireless terminal devices with a single signal strength classification and a preset number threshold is queried in a preset grouping strategy, or the relation between the number of wireless terminal devices with a plurality of signal strength classifications with similar signal strengths and a preset number threshold is queried, so as to obtain a grouping strategy corresponding to the signal strength classification conditions of a plurality of current wireless terminal devices.
Please refer to table 2, R in the above table 1 -R 11 And RSSI in Table 1 1 -RSSI 11 Corresponding to the same, all represent signal strength ratings, user 1 -User 11 Indicating the number of wireless terminal devices for each signal strength class. R Threshold value Indicating a lower threshold of signal strength, user Threshold value Representing a preset number threshold. R in this case n Can be compared with RSSI in Table 1 10 Correspondingly, other signal strength gradations are possible, i.e. R n General formula representing signal intensity grading.
For example, if the signal strengths of a plurality of wireless terminal devices are all less than the lower threshold of signal strength, i.e. R<R Threshold value Then, the plurality of wireless terminal devices are grouped into the same group for wireless data transmission.
If the signal strength is at R 1 If the number of wireless terminals with graded signal strength is larger than or equal to the preset number threshold, the User 1 ≥User Threshold value Then it means that the number of wireless terminals is located at R 1 The number of wireless terminals with graded signal strength reaches a preset number threshold value, and the signal strength should be located at R 1 The number of wireless terminals whose signal strengths are classified is set to the same group, i.e., team 1 。
If the signal strength is at R 1 If the number of the wireless terminals with the graded signal intensity is less than a preset number threshold, the User 1 <User Threshold value Then, the relation between the number of wireless terminals with similar signal strength grades and the preset number threshold is judged. Further, if the signal strength is at R 1 The number of wireless terminals with graded signal strength and the signal strength are located at R 2 The sum of the number of wireless terminals with graded signal strength is greater than the preset valueNumber threshold, i.e. User 1 +User 2 ≥User Threshold value When the signal intensity is at R 1 Does not reach the preset number threshold, the signal strength should be located at R 1 Signal strength classification and signal strength at R 2 The wireless terminal devices with graded signal intensity are arranged in the same group, namely Team 2 Wireless data transmission is performed. In the same way, team 3 、Team 4 、Team 5 、......Team n-1 The grouping principle of (1) is the same as above.
In summary, in this embodiment, the relationship between the number of wireless terminal devices in each signal strength class and the preset number threshold is determined, and if the number of wireless terminal devices in a certain signal strength class is greater than or equal to the preset number threshold, a group is formed separately for wireless data transmission, and wireless data transmission with other wireless terminal devices in the same group is not required. If the number of the wireless terminal devices is smaller than the preset number threshold, the relationship between the number of the wireless terminal devices with the similar signal intensity grades and the preset number threshold is judged, and if the number of the wireless terminal devices with the similar signal intensity grades is smaller than the preset number threshold and the sum of the two wireless terminal devices with the signal intensity grades is larger than or equal to the preset number threshold, the two wireless terminal devices with the signal intensity grades are combined into the same group for wireless data transmission.
It should be noted that, if the number of wireless terminal devices with the minimum signal strength classification (i.e., R1) is smaller than the preset number threshold, but the sum of the number of wireless terminal devices with multiple signal strength classifications is greater than or equal to the preset number threshold, the wireless terminal devices with three or more signal strength classifications with similar signal strengths may be set in the same group for wireless data transmission. It is worth mentioning that if User 1 The number of the wireless terminal devices is less than a preset number threshold, and the User 1 To User n If the sum of the number of the wireless terminal devices is less than a preset number threshold, the signal intensity is graded to be R 1 -R 11 All wireless terminal devices set the same group for wireless data transmission.
S300, wireless data transmission is carried out on the plurality of wireless terminal devices according to the grouping strategy.
And performing packet wireless data transmission on the wireless terminal equipment based on the packet strategy obtained in the step S200.
According to the method and the device, through acquiring the signal intensity and the number of the plurality of wireless terminal devices, the grouping strategy corresponding to the signal intensity and the number of the plurality of current wireless terminal devices is inquired in the preset grouping strategy, and wireless data transmission is carried out on the plurality of wireless terminal devices according to the grouping strategy, so that the signal intensity of each group of the plurality of wireless terminal devices which are transmitted simultaneously is close, the problems that signal noise is introduced due to too large difference of the signal intensity of the plurality of wireless terminal devices which are transmitted simultaneously and the overall throughput is influenced are solved, the overall throughput under a multi-user concurrent scene can be improved, reasonable scheduling of wireless spectrum resources is realized, and the purpose of utilizing the spectrum to the maximum extent is achieved.
Based on the same inventive concept, please refer to fig. 4, the present application further proposes an embodiment two, which is based on the embodiment one.
Example two
The multi-user wireless data transmission method of the embodiment comprises the following steps:
s400, acquiring the preset grouping strategy. The preset grouping policy set in the memory 1005 of the multi-user wireless data transmission apparatus should be acquired before the signal strengths and numbers of the plurality of wireless terminal apparatuses are acquired. A signal strength grading table can be formed by setting a signal strength grading before a signal strength threshold lower limit, a signal strength threshold upper limit, a signal strength threshold lower limit and a signal strength threshold upper limit, and then a grouping condition is set for each wireless terminal device with graded signal strength to form a preset grouping strategy.
The grouping conditions are as follows: if the signal intensity of the wireless terminal devices is less than the lower limit of the signal intensity threshold, namely R<R Threshold value Then, a plurality of wireless terminal devices are grouped into the same group for wireless data transmission.
If the signal strength is at R 1 If the number of wireless terminals with graded signal strength is larger than or equal to the preset number threshold, the User 1 ≥User Threshold value Then, it means that the number of wireless terminals is located at R 1 The number of wireless terminals with graded signal strength reaches a preset number threshold value, and the signal strength should be positioned at R 1 The number of wireless terminals whose signal strengths are classified is set to the same group, team 1 。
If the signal strength is at R 1 If the number of the wireless terminals with the graded signal intensity is less than a preset number threshold, the User 1 <User Threshold value Then, the relation between the number of wireless terminals with similar signal strength grades and the preset number threshold is judged. Further, if the signal strength is at R 1 The number of wireless terminals with graded signal strength and the signal strength are located at R 2 The sum of the number of wireless terminals with graded signal strength is greater than a preset number threshold, i.e. User 1 +User 2 ≥User Threshold value When the signal intensity is at R 1 Does not reach the preset number threshold, the signal strength should be located at R 1 Signal strength classification of (2) and signal strength at R 2 The wireless terminal devices with graded signal intensity are arranged in the same group, namely Team 2 Wireless data transmission is performed. In the same way, team 3 、Team 4 、Team 5 、......Team n-1 The grouping principle of (1) is the same as above.
If the number of wireless terminal devices with the minimum signal intensity classification (i.e., R1) is less than the preset number threshold, but the sum of the number of wireless terminal devices with multiple signal intensity classifications is greater than or equal to the preset number threshold, the wireless terminal devices with three or more signal intensity classifications with similar signal intensities may be arranged in the same group for wireless data transmission. It is worth mentioning that if User 1 The number of the wireless terminal devices is less than a preset number threshold, and the User 1 To User n If the sum of the number of the wireless terminal devices is less than a preset number threshold, the signal intensity is graded to be R 1 -R 11 All wireless terminal device settings ofAnd carrying out wireless data transmission on the same group.
Step S400 is a step of preparing the preset grouping policy, which defines the source of obtaining the preset grouping policy and is the basis for obtaining the grouping policy from the preset grouping policy.
Referring to fig. 5, the present application further provides a multi-user wireless data transmission system, including: an acquisition module 101, a query module 102, and an assignment module 103.
An obtaining module 101 is configured to obtain signal strengths and numbers of a plurality of wireless terminal devices. Specifically, the obtaining module 101 obtains the signal strengths of the wireless terminal devices, classifies the signal strengths of the wireless terminal devices according to a preset signal strength classification table, and counts the number of the wireless terminal devices in each signal strength classification.
The query module 102 is configured to query a grouping policy corresponding to the signal strengths and the number of the current multiple wireless terminal devices in a preset grouping policy. Specifically, the query module 102 is configured to query, in a preset grouping policy, a relationship between the number of wireless terminal devices with a single signal strength classification and a preset number threshold, or a relationship between the number of wireless terminal devices with a plurality of signal strength classifications with similar signal strengths and a preset number threshold, so as to obtain a grouping policy corresponding to the signal strength classification conditions of a plurality of current wireless terminal devices.
The allocating module 103 is configured to perform wireless data transmission on a plurality of wireless terminal devices according to the grouping policy obtained by the querying module.
The multi-user wireless data transmission system queries the grouping strategy corresponding to the signal intensity and the number of the current multiple wireless terminal devices in the preset grouping strategy by acquiring the signal intensity and the number of the multiple wireless terminal devices, and performs wireless data transmission on the multiple wireless terminal devices according to the grouping strategy, so that the signal intensity of the multiple wireless terminal devices in each group which are transmitted simultaneously is close, the problems that signal noise is introduced due to too large difference of the signal intensity of the multiple wireless terminal devices which are transmitted simultaneously and overall throughput is influenced are solved, the embodiment can improve the overall throughput under a multi-user concurrent scene, and reasonable scheduling of wireless spectrum resources is realized, and the purpose of maximally utilizing the spectrum is achieved.
The present application also proposes a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the multi-user wireless data transmission method.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1.A method for multi-user wireless data transmission, comprising:
acquiring the signal strengths of a plurality of wireless terminal devices with larger signal strength difference;
classifying the signal intensity of a plurality of wireless terminal devices according to a preset signal intensity classification table, and counting the number of the wireless terminal devices in each signal intensity classification;
inquiring grouping strategies corresponding to the signal intensity and the number of the current multiple wireless terminal devices in preset grouping strategies, wherein the grouping conditions of the preset grouping strategies are as follows: if the signal intensities of the wireless terminal devices are all smaller than the lower limit of the signal intensity threshold, the wireless terminal devices are divided into the same group for wireless data transmission, if the number of the wireless terminals with the signal intensities at the R1 signal intensity classification is larger than or equal to the preset number threshold, the wireless terminals with the signal intensities at the R1 signal intensity classification are arranged in the same group, if the number of the wireless terminals with the signal intensities at the R1 signal intensity classification is smaller than the preset number threshold, and the sum of the number of the wireless terminals with the signal intensities at the R1 signal intensity classification and the number of the wireless terminals with the signal intensities at the R2 signal intensity classification is larger than the preset number threshold, the wireless terminal devices with the signal intensities at the R1 signal intensity classification and the signal intensities at the R2 signal intensity classification are arranged in the same group for wireless data transmission, if the number of the wireless terminal equipment with the minimum signal intensity classification is less than a preset number threshold value, but the sum of the number of the wireless terminal equipment with three or more than three signal intensity classification with similar signal intensity is greater than or equal to the preset number threshold value, the wireless terminal equipment with three or more than three signal intensity classification with similar signal intensity is arranged in the same group for wireless data transmission, and if the number of the wireless terminal equipment with the signal intensity positioned in the R1 signal intensity classification is less than the preset number threshold value and the sum of the number of the wireless terminal equipment with the signal intensity positioned in the R1 to Rn signal intensity classification is less than the preset number threshold value, all the wireless terminal equipment with the signal intensity classification in the R1-Rn group for wireless data transmission;
and carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy.
2. The method of claim 1, wherein the signal strength ranking table comprises a first signal strength ranking less than a lower signal strength threshold and a second signal strength ranking greater than or equal to the lower signal strength threshold.
3. The method of claim 1, wherein the signal strength ranking table comprises a third signal strength ranking less than a lower signal strength threshold, a fourth signal strength ranking greater than an upper signal strength threshold, and a fifth signal strength ranking greater than or equal to the lower signal strength threshold and less than or equal to the upper signal strength threshold.
4. The method of claim 3, wherein the fifth signal strength classification comprises a plurality of sixth signal strength classifications having the same signal strength range.
5. The method according to any one of claims 2-4, wherein said querying the grouping policy corresponding to the signal strength and the number of the current plurality of wireless terminal devices in the preset grouping policy comprises:
and inquiring the relation between the number of the wireless terminal equipment with single signal intensity classification and a preset number threshold value or the relation between the number of the wireless terminal equipment with a plurality of signal intensity classifications with similar signal intensities and the preset number threshold value in a preset grouping strategy to obtain a grouping strategy corresponding to the signal intensity classification conditions of a plurality of current wireless terminal equipment.
6. A multi-user wireless data transmission system, comprising:
the wireless terminal equipment comprises an acquisition module, a calculation module and a comparison module, wherein the acquisition module is used for acquiring the signal intensity and the number of a plurality of wireless terminal equipment, specifically, the acquisition module acquires the signal intensity of the plurality of wireless terminal equipment with larger signal intensity difference, classifies the signal intensity of the plurality of wireless terminal equipment according to a preset signal intensity classification table, and counts the number of the wireless terminal equipment in each signal intensity classification;
the inquiry module is used for inquiring the grouping strategy corresponding to the signal intensity and the number of the current plurality of wireless terminal devices in a preset grouping strategy, wherein the grouping conditions of the preset grouping strategy are as follows: if the signal intensities of the wireless terminal devices are all smaller than the lower limit of the signal intensity threshold, the wireless terminal devices are divided into the same group for wireless data transmission, if the number of the wireless terminals with the signal intensities at the R1 signal intensity classification is larger than or equal to the preset number threshold, the number of the wireless terminals with the signal intensities at the R1 signal intensity classification is set into the same group, if the number of the wireless terminals with the signal intensities at the R1 signal intensity classification is smaller than the preset number threshold, and the sum of the number of the wireless terminals with the signal intensities at the R1 signal intensity classification and the number of the wireless terminals with the signal intensities at the R2 signal intensity classification is larger than the preset number threshold, the wireless terminal devices with the signal intensities at the R1 signal intensity classification and the signal intensities at the R2 signal intensity classification are set into the same group for wireless data transmission, if the number of wireless terminal devices with the minimum signal intensity classification is smaller than a preset number threshold value, but the sum of the number of the wireless terminal devices with three or more signal intensity classifications with similar signal intensities is larger than or equal to the preset number threshold value, setting the wireless terminal devices with three or more signal intensity classifications with similar signal intensities in the same group for wireless data transmission, and if the number of the wireless terminal devices of User1 is smaller than the preset number threshold value and the sum of the number of the wireless terminal devices of User1 to User n is smaller than the preset number threshold value, setting all the wireless terminal devices with signal intensity classification in R1-R11 in the same group for wireless data transmission;
and the distribution module is used for carrying out wireless data transmission on a plurality of wireless terminal devices according to the grouping strategy.
7. A multi-user wireless data transmission apparatus, comprising a processor, a memory electrically connected to the processor, and a multi-user wireless data transmission program stored in the memory and executable on the processor; the multi-user wireless data transmission program when executed by the processor implements the steps of the multi-user wireless data transmission method according to any of claims 1 to 5.
8. A computer readable storage medium, storing one or more programs, which are executable by one or more processors, to implement the steps in the multi-user wireless data transmission method according to any one of claims 1 to 5.
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| CN202011500656.1A CN112689308B (en) | 2020-12-17 | 2020-12-17 | Multi-user wireless data transmission method, system, device and storage medium |
| PCT/CN2021/133146 WO2022127555A1 (en) | 2020-12-17 | 2021-11-25 | Multi-user wireless data transmission method, system, device, and storage medium |
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| CN116896550B (en) * | 2023-09-11 | 2023-11-21 | 东莞信宝电子产品检测有限公司 | Software updating method, system and storage medium for reducing server pressure |
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| WO2022127555A1 (en) | 2022-06-23 |
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