CN117692918A - Multiple input multiple output control method, WiFi device, computer readable medium - Google Patents

Abstract

The disclosure provides a method for controlling multiple input multiple output (mimo) applied to a wireless fidelity (WiFi) device, comprising: acquiring connection state information of a client accessed by at least one frequency band; according to the connection state information of the accessed client, determining the multi-input multi-output configuration information of each frequency band; and adjusting the MIMO configuration of each frequency band according to the MIMO configuration information. The disclosure also provides a WiFi device, a computer-readable medium.

Description

Multiple input multiple output control method, WiFi device, computer readable medium

Technical field

The present disclosure relates to the field of communication technology, and features a multiple-input multiple-output control method, a WiFi device, and a computer-readable medium.

Background technique

WiFi is a short-range wireless communication technology. As users' needs for wireless networks upgrade, WiFi technology and standards continue to evolve and develop. Starting from WiFi 4, WiFi technology has introduced multiple antennas and multiple-input multiple-output (MIMO, Multiple-In Multiple-Out) technology. Starting from WiFi 5, multi-user-multiple-input multiple-output (MU-MIMO, Multi-User Multiple) has been introduced. -Input Multiple-Output) technology, WiFi 6 updates and upgrades MU-MIMO technology, supports more MIMO, higher rates, and optimizes multiple application scenarios. WiFi 6E and future WiFi 7 will introduce In the 6GHz frequency band, it is foreseeable that there will be equipment working in 2.4GHz, 5GHz and 6GHz simultaneously.

At the same time, with the development of science and technology, there are more and more types of devices using WiFi technology. Not only mobile phones, personal computers (PCs), tablets, etc. can communicate through WiFi, but also various household appliances such as TVs, refrigerators, and washing machines. Electrical appliances can also communicate through WiFi, and many Internet of Things (IOT, Internet of Things) devices can also communicate using WiFi. Different types of devices have different requirements for bandwidth. For example, IOT devices only need to occasionally transmit a small amount of data and do not require large bandwidth, while mobile phones, PCs and other devices may require large bandwidth; not all devices that may require large bandwidth Large bandwidth is required all the time. For example, mobile phones require large bandwidth when playing high-definition videos, but do not need large bandwidth at other times; some devices have higher real-time requirements when making audio and video calls and other services.

However, WiFi devices cannot well meet the wireless communication needs of users in different devices and scenarios, seriously affecting the user experience.

Contents of the invention

Embodiments of the present disclosure provide a multiple-input multiple-output control method, a WiFi device, and a computer-readable medium.

In a first aspect, embodiments of the present disclosure provide a multiple-input multiple-output control method applied to WiFi devices, including:

Obtain the connection status information of clients connected to at least one frequency band;

Determine the multiple-input multiple-output configuration information of each frequency band based on the connection status information of the connected client;

The multiple-input multiple-output configuration of each frequency band is adjusted according to the multiple-input multiple-output configuration information.

In some embodiments, the multiple-input multiple-output configuration information of each frequency band is determined based on the connection status information of the connected client, including:

Determine the number of multiple input multiple outputs for each frequency band based on the connection status information of the connected client.

In some embodiments, the multiple-input multiple-output number of each frequency band is determined based on the connection status information of the connected client, including:

For any frequency band, determine whether the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band;

When the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band, compare the sum of the real-time rates of the connected clients with the upper limit of throughput currently supported by the frequency band;

If the ratio of the total real-time rate to the throughput upper limit is greater than a preset threshold, increase the number of multiple-input multiple-outputs in the frequency band.

In some embodiments, the multiple-input multiple-output number of each frequency band is determined based on the connection status information of the accessed client, including:

For any frequency band, when the ratio of the total real-time rate of the connected clients to the throughput upper limit currently supported by the frequency band is less than the preset threshold and lasts for a preset period of time, reduce the multiple-input multiple-output of the frequency band. quantity.

In some embodiments, the multiple-input multiple-output configuration information of each frequency band is determined based on the connection status information of the connected client, including:

According to the connection status information of the connected client, the client is assigned to at least one multiple-input multiple-output group.

In some embodiments, the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the connected client, including:

For any frequency band, the connected clients are divided into long-distance clients and short-distance clients based on the connection status information of the connected clients;

The remote client and the close client are assigned to different multiple-input multiple-output groups.

In some embodiments, the remote client and the close client are assigned to different multiple-input multiple-output groups, including:

Determine the number of first multiple-input multiple-output groups and the number of second multiple-input multiple-output groups based on the number of remote clients and the number of close-range clients;

assigning the remote client to the first multiple-input multiple-output group;

The close-range client is assigned to the second multiple-input multiple-output group.

In some embodiments, the connected clients are divided into long-distance clients and short-distance clients according to the connection status information of the connected clients, including:

For any client, when the received signal strength indication information of the client is less than or equal to the strength threshold, the client is classified as a long-distance client;

If the received signal strength indication information of the client is greater than the strength threshold, the client is classified as a short-range client.

In some embodiments, the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the connected client, including:

For any frequency band, determine the client's service quality priority based on the connection status information of the connected client;

Clients are assigned to different MIMO groups based on their quality of service priority.

In some embodiments, clients are assigned to different multiple-input multiple-output groups based on their quality of service priorities, including:

Determining at least one idle multiple-input multiple-output group among the multiple-input multiple-output groups of the frequency band;

Clients with high service quality priority are assigned to the idle multiple-input multiple-output group.

In some embodiments, clients with high service quality priority are assigned to the idle multiple-input multiple-output group, including:

Clients with high service quality priority are exclusively assigned to one of the idle multiple-input multiple-output groups.

In some embodiments, clients with high service quality priority are assigned to the idle multiple-input multiple-output group, including:

Multiple clients with high service quality priority are evenly distributed to multiple idle multiple-input multiple-output groups.

In some embodiments, obtaining connection status information of clients that have access to at least one frequency band includes:

Obtain at least one of the number of connected clients in each frequency band, the real-time rate of the connected clients, the received signal strength indication information of the connected clients, and the service quality information of the connected clients, and obtain the Connection status information.

In some embodiments, obtaining the real-time rate of the connected client includes:

For any client, collect the sending rate of a group of clients in each cycle;

In each cycle, the average of multiple sets of sending rates in previous cycles is calculated to obtain the real-time rate of the client in each cycle.

In some embodiments, obtaining the received signal strength indication information of the connected client includes:

For any client, store multiple latest received signal strength indication values;

The average value of multiple stored latest received signal strength indication values is calculated once in each cycle to obtain the received signal strength indication information of the client in each cycle.

In some embodiments, the control method further includes:

In response to system startup, the number of MIMOs activated for each band is determined based on user configuration.

In a second aspect, an embodiment of the present disclosure provides a WiFi device, including:

one or more processors;

A memory with one or more programs stored thereon. When the one or more programs are executed by the one or more processors, the one or more processors implement the first aspect of the embodiment of the present disclosure. Multiple input and multiple output control method.

In a third aspect, an embodiment of the present disclosure provides a computer-readable medium on which a computer program is stored. When the program is executed by a processor, the multiple-input multiple-output control method described in the first aspect of the embodiment of the present disclosure is implemented.

In the multiple-input multiple-output control method provided by the embodiments of the present disclosure, the WiFi device can determine the multiple-input multiple-output configuration information of each frequency band based on the connection status information of the connected client in each frequency band, and based on the updated multiple-input multiple output The configuration information adjusts the multiple-input multiple-output configuration of each frequency band, so that the adjusted multiple-input multiple-output configuration can adapt to the connection status of the connected client, realizing dynamic and flexible adjustment of the multiple-input multiple-output configuration, thus enabling Meet the wireless communication needs of different clients and different scenarios, which is conducive to improving user experience.

Description of the drawings

Figure 1 is a flow chart of a multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 2 is a flow chart of some steps in another multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 3 is a flow chart of some steps in yet another multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 4 is a flow chart of some steps in yet another multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 5 is a flow chart of some steps in yet another multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 6 is a flow chart of some steps in yet another multiple-input multiple-output control method in an embodiment of the present disclosure;

Figure 7 is a block diagram of a WiFi device in an embodiment of the present disclosure;

Figure 8 is a block diagram of a computer-readable medium in an embodiment of the present disclosure;

Figure 9 is a schematic architectural diagram of a WiFi device in an embodiment of the present disclosure.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the multiple-input multiple-output control method, WiFi device, and computer-readable medium provided by the present disclosure will be described in detail below in conjunction with the accompanying drawings.

Example embodiments will be described more fully below with reference to the accompanying drawings, which may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully understand the scope of the disclosure to those skilled in the art.

The embodiments of the present disclosure and the features in the embodiments may be combined with each other without conflict.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is used to describe particular embodiments only and is not intended to limit the disclosure. As used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and/or "made of" are used in this specification, the presence of stated features, integers, steps, operations, elements and/or components is specified but does not exclude the presence or Add one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be construed to have meanings consistent with their meanings in the context of the relevant art and the present disclosure, and will not be construed as having idealized or excessive formal meanings, Unless expressly so limited herein.

Common WiFi equipment includes wireless routers, Customer Premises Equipment (CPE, Customer Premises Equipment), etc. Wireless routers and CPE usually have multiple antennas and support MIMO and MU-MIMO. In some related technologies, WiFi devices usually start with the maximum MIMO capability, and the number of MIMOs does not change. The power consumption of WiFi devices is large; when a client accesses a WiFi device, the WiFi device will access the WiFi device according to the current client The situation of assigning clients to a certain MIMO group does not change, which can easily lead to load imbalance between different MIMO groups; the 2.4GHz band bandwidth of WiFi devices is small, but the transmission distance is long. When multiple IOT devices share the same When the bandwidth of a 2.4GHz frequency band is used, although the bandwidth required by IOT devices is smaller, the bandwidth requirements of each IOT device may not be guaranteed; when the client conducts audio and video calls and other services with high real-time requirements, it may be allocated Due to the impact of big data downloading, high-definition video playback and other services being carried out by other terminals in the same MIMO group, the delay requirements cannot be met. Due to the above problems, common WiFi devices cannot well meet the wireless communication needs of different devices and different scenarios, seriously affecting the user experience.

In view of this, in the first aspect, referring to FIG. 1 , an embodiment of the present disclosure provides a multiple-input multiple-output control method, including:

S1. Obtain the connection status information of the client that has accessed at least one frequency band.

S2. Determine the multiple-input multiple-output configuration information of each frequency band according to the connection status information of the connected client.

S3. Adjust the multiple-input multiple-output configuration of each frequency band according to the multiple-input multiple-output configuration information.

The embodiments of the present disclosure are applicable to WiFi devices that support at least one frequency band and support MIMO. The embodiments of the present disclosure do not specifically limit WiFi devices. For example, WiFi devices may be wireless routers, CPEs, etc. The embodiments of this disclosure do not specifically limit the frequency bands supported by WiFi devices. For example, the frequency bands supported by the WiFi device include at least one of 2.4GHz, 5GHz, and 6GHz.

The embodiment of the present disclosure does not impose special limitations on the client. For example, the client can be a smart device such as a mobile phone, PC, or tablet, or a household appliance such as a TV, a refrigerator, or a washing machine, or an IOT device. In this embodiment of the present disclosure, for any frequency band supported by the WiFi device, the number of clients that have accessed is greater than or equal to 0. This embodiment of the present disclosure does not specifically limit this.

In the embodiment of the present disclosure, adjusting the multiple-input multiple-output configuration of the frequency band may be to adjust the number of MIMOs in the frequency band, for example, increasing the number of MIMOs in the frequency band, such as adjusting the number of MIMOs in the frequency band from 4×4 to 6×6, or reduce the number of MIMO in this frequency band, for example, adjust the number of MIMO in this frequency band from 8×8 to 4×4; you can also adjust the MIMO group in this frequency band; you can also adjust the number of MIMO in this frequency band and MIMO configuration outside the MIMO group. The embodiments of the present disclosure do not impose special limitations on this.

In the embodiment of the present disclosure, the MIMO configuration of the WiFi device that supports all or part of at least one frequency band can be adjusted through steps S1 to S3. For example, adjust the MIMO configuration of only one frequency band, or adjust the MIMO configuration of two or three frequency bands. The embodiments of the present disclosure do not impose special limitations on this.

In the multiple-input multiple-output control method provided by the embodiments of the present disclosure, the multiple-input multiple-output configuration information of each frequency band can be determined based on the connection status information of the connected client in each frequency band, and the multiple-input multiple-output configuration information can be determined based on the updated multiple-input multiple-output configuration information. Adjust the MIMO configuration of each frequency band so that the adjusted MIMO configuration can adapt to the connection status of the connected client, realizing dynamic and flexible adjustment of the MIMO configuration to satisfy different customers The wireless communication needs of terminals and different scenarios are conducive to improving the user experience.

The embodiments of the present disclosure do not place special limitations on how to adjust the multiple-input multiple-output configuration of the frequency band. In some embodiments, the MIMO amount of a WiFi device can be dynamically adjusted. Accordingly, in order to adjust the number of MIMOs, it is necessary to determine the adjusted number of MIMOs in the frequency band when determining the multiple-input multiple-output configuration information of the frequency band based on the connection status information of the connected client.

Accordingly, in some embodiments, referring to Figure 2, the multiple-input multiple-output configuration information of each frequency band is determined based on the connection status information of the connected client, including:

S21. Determine the number of multiple input multiple outputs for each frequency band according to the connection status information of the connected client.

The embodiment of the present disclosure does not place special limitations on how to adjust the MIMO quantity.

In some embodiments, the connection status information of the client represents the number of connected clients, and the MIMO number or the smaller MIMO number can be increased according to the number of connected clients. For example, when the number of clients connected to a certain frequency band is large, the number of MIMO in that frequency band is increased to ensure that the bandwidth, speed, throughput and other requirements of each client can be met; when the number of clients connected to a certain frequency band is When the number of clients is small, reducing the number of MIMO in this frequency band can save the power consumption of WiFi devices on the basis of meeting the bandwidth, speed, throughput and other needs of clients.

In some embodiments, the connection status information of the client represents the real-time rate of the connected client. When adjusting the number of MIMO, the sum of the real-time rate of the connected client can be compared with the maximum capacity supported by the current MIMO configuration of the frequency band. Compare, and increase or decrease the number of MIMO in the frequency band based on the comparison result.

In some embodiments, the connection status information of the client represents the real-time rate of the connected client and the number of connected clients. When adjusting the MIMO quantity, the number of connected clients and the number of connected clients are combined. Real-time rate adjustment of the MIMO number of frequency bands.

Accordingly, in some embodiments, referring to Figure 3, the number of multiple-input multiple-outputs for each frequency band is determined based on the connection status information of the connected client, including:

S211. For any frequency band, determine whether the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band.

S212. When the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band, compare the sum of the real-time rates of the connected clients with the upper limit of throughput currently supported by the frequency band.

S213. If the ratio of the total real-time rate to the throughput upper limit is greater than a preset threshold, increase the number of multiple input multiple outputs in the frequency band.

In this embodiment of the present disclosure, the number of configured MIMOs is different, and the number of clients that can be supported is also different. The upper limit of the number of users currently supported by the frequency band refers to the maximum number of clients that can be supported under the currently configured MIMO number of the frequency band. For example, when the MIMO number of the currently configured frequency band is 4×4, it can support up to two 2×2 clients, or four 1×1 clients, or two 1×1 clients and one 2×1 client. ×2 clients.

The embodiment of the present disclosure does not place special limitations on the preset threshold. In some embodiments, the preset threshold ranges from 50% to 70%. For example, the preset threshold is 60%, that is, when the sum of the real-time rates of clients accessing the same frequency band is greater than 60% of the maximum throughput of the currently configured number of MIMOs in the frequency band, the number of MIMOs in the frequency band is increased.

The embodiments of this disclosure do not place special limitations on how to increase the number of MIMOs. In some embodiments, the number of MIMO is divided into multiple levels, for example, into multiple levels such as 2×2, 4×4, 6×6, 8×8, etc. When it is necessary to increase the number of MIMO in a frequency band, The number of MIMO configured in the frequency band is increased by one level, for example, from 4×4 to 6×6. Each time the level is increased, through steps S211 to S213, the sum of the real-time rates of the clients connected to the frequency band and the upgraded level support are The throughput upper limit is compared until the highest level is reached or the ratio of the total real-time rate to the throughput upper limit is less than or equal to the preset threshold.

In some embodiments, for any frequency band, when the number of connected clients does not exceed the upper limit of the number of users currently supported by the frequency band, or when the ratio of the total real-time rate to the throughput upper limit is not greater than a preset threshold In the case of , the MIMO quantity of the frequency band will not be adjusted.

In this disclosed embodiment, combining the number of connected clients and the real-time rate adjustment of the MIMO number of the connected clients, it is possible to take into account the number of users and throughput capabilities supported by the frequency band, while ensuring the rate requirements of each client. On the basis of improving MIMO usage efficiency.

In some embodiments, referring to Figure 3, the multiple-input multiple-output number of each frequency band is determined based on the connection status information of the accessed client, including:

S214. For any frequency band, if the ratio of the total real-time rate of the connected clients to the throughput upper limit currently supported by the frequency band is less than the preset threshold and continues for a preset time, reduce the multiple inputs of the frequency band. Multiple output quantities.

In the embodiment of the present disclosure, the number of MIMO can be reduced for each frequency band supported by WiFi devices when the conditions of step S214 are met; for new frequency bands, such as WiFi 6E and the 6GHz frequency band that will be introduced by future WiFi 7 devices, There may be fewer clients connected, and the number of MIMO in the new frequency band may also be reduced in a targeted manner through step S214.

For example, in some scenarios, the CPE or wireless router supports three-band concurrency of 2.4GHz, 5GHz, and 6GHz, but stations that support 6GHz have not yet appeared or are relatively few, so the CPE or wireless router can be made to work in the 6GHz frequency band. Under low MIMO configuration. In most home usage scenarios, when there is no one at home, the wireless router or CPE at home will have no or fewer clients accessing the home. The CPE or wireless router can also be made to work in a low MIMO configuration.

The embodiments of this disclosure do not place special limitations on how to increase the number of MIMOs. In some embodiments, the number of MIMO is divided into multiple levels, for example, into multiple levels such as 2×2, 4×4, 6×6, 8×8, etc. When it is necessary to reduce the number of MIMO in a frequency band, The number of MIMO configured in this frequency band is reduced by one level, for example, from 6×6 to 4×4.

In some embodiments, the MIMO group of WiFi devices can be dynamically adjusted. Accordingly, in order to adjust the MIMO group, the MIMO group needs to be reassigned to the accessed client when the multiple-input multiple-output configuration information of the frequency band is determined based on the connection status information of the accessed client.

Accordingly, in some embodiments, referring to Figure 2, the multiple-input multiple-output configuration information of each frequency band is determined based on the connection status information of the accessed client, including:

S22. According to the connection status information of the connected client, allocate the client to at least one multiple-input multiple-output group.

The embodiment of the present disclosure does not place special limitations on how to reallocate MIMO groups.

In some embodiments, for any frequency band, clients farther from the WiFi device and clients closer to the WiFi device are assigned to different MIMO groups based on the distance between the client and the WiFi device.

Accordingly, in some embodiments, referring to Figure 4, the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the accessed client, including:

S221. For any frequency band, divide the connected clients into long-distance clients and short-distance clients according to the connection status information of the connected clients.

S222. Assign the long-distance client and the short-distance client to different multiple-input multiple-output groups.

The embodiment of this disclosure does not place any special restrictions on how to divide the connected clients into long-distance clients and short-distance clients. In some embodiments, the connection status information may represent the location information of the client, and the connected clients are divided into long-distance clients and short-distance clients based on the location information of the clients. In some embodiments, the connection status information can represent the Received Signal Strength Indication (RSSI) information of the client. The RSSI information of the client can reflect the distance relationship between the client and the WiFi device. Therefore, the connection status can be determined based on the RSSI information of the client. Incoming clients are divided into long-distance clients and short-distance clients.

It should be noted that in the embodiments of the present disclosure, the bandwidth requirements of long-distance clients and short-distance clients may be different. For example, in the 2.4GHz frequency band, the bandwidth required by long-distance clients is smaller, and the bandwidth required by short-distance clients is smaller. Larger, allocating long-distance clients and short-distance clients to different MIMO groups can avoid the mutual influence of long-distance clients and short-distance clients, so that the bandwidth requirements of each client can be guaranteed.

For example, there are currently more and more smart home devices, and there may be more smart home devices connected to wireless routers or CPEs in the home. In this scenario, many smart home devices may only support the 2.4GHz frequency band and will be placed at home. Different locations, and will be far away from the router or CPE. If the 2.4GHz MIMO configuration is higher and these smart home devices are assigned to different MIMO groups, normal communication of these smart home devices can be ensured.

In the embodiment of the present disclosure, when the long-distance client and the short-distance client are assigned to different MIMO groups, the long-distance client can be assigned to one or more MIMO groups, and the short-distance client can also be assigned to one or more MIMO groups. Multiple MIMO groups. The embodiments of the present disclosure do not impose special limitations on this.

In some embodiments, for any frequency band, the number of MIMO groups of long-distance clients and the number of MIMO groups of short-distance clients can be adjusted according to the number of long-distance clients and short-distance clients. For example, if there are a large number of long-distance clients, increase the number of MIMO groups of long-distance clients; if there are a large number of short-distance clients, increase the number of MIMO groups of short-distance clients.

Accordingly, in some embodiments, the long-distance clients and the short-distance clients are assigned to different multiple-input multiple-output groups, including: according to the number of the long-distance clients and the number of the short-distance clients. quantity, determine the number of the first multiple-input multiple-output group and the number of the second multiple-input multiple-output group; assign the long-distance client to the first multiple-input multiple-output group; assign the close-range client to the second MIMO group.

It should be noted that the first MIMO group refers to the MIMO group of long-distance clients, and the second MIMO group refers to the MIMO group of short-distance clients.

In some embodiments, according to the connection status information of the connected client, the connected client is divided into a long-distance client and a short-distance client, including: for any client, the reception of the client If the signal strength indication information is less than or equal to the strength threshold, the client is classified as a long-distance client; if the received signal strength indication information of the client is greater than the strength threshold, the client is classified as a long-distance client. For close-range clients.

For example, for the 2.4GHz frequency band, set the intensity threshold to -75DBm. When the client's RSSI information is less than or equal to -75DBm, the client is considered to be far away from the WiFi device, and the client is classified as a long-distance device; when the client's RSSI If the information is greater than -75DBm, it is considered that the client is close to the WiFi device, and the client is classified as a short-distance device.

In some embodiments, for any frequency band, the client's MIMO group is adjusted according to the client's service quality priority.

In some embodiments, referring to Figure 5, the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the accessed client, including:

S223. For any frequency band, determine the service quality priority of the client based on the connection status information of the connected client.

S224. Assign the client to different multiple-input multiple-output groups according to the client's service quality priority.

The embodiments of this disclosure do not place special limitations on how to allocate clients to different MIMO groups according to their Quality of Service (QoS) priorities. For example, a client with high QoS priority can be exclusively assigned to a MIMO group to ensure the quality of service of the client. For example, if the client is conducting services with high real-time requirements such as audio and video calls, the client can be exclusively assigned to a MIMO group. , which can avoid the impact of other clients' ongoing big data downloading, high-definition video playback and other services. For example, when there are multiple clients with high QoS priorities, disperse the multiple clients with high QoS priorities into different MIMO groups, such as multiple clients that are conducting audio and video calls and other services with high real-time requirements. Clients are evenly allocated to multiple relatively idle MIMO groups, which can avoid the increase in delay caused by multiple clients' service queuing. Therefore, in the embodiment of the present disclosure, clients are assigned to different MIMO groups according to their QoS priorities, so that the service quality of the clients can be guaranteed in different scenarios.

Accordingly, in some embodiments, allocating the client to different multiple-input multiple-output groups according to the client's quality of service priority includes: determining at least one idle multiple-input multiple-output group in each multiple-input multiple-output group of the frequency band. Output group: allocate clients with high service quality priority to the idle multiple-input multiple-output group.

Correspondingly, in some embodiments, allocating clients with high service quality priority to the idle multiple-input multiple-output group includes: exclusively allocating clients with high service quality priority to one of the idle multiple-input multiple-output groups. Output group.

Correspondingly, in some embodiments, allocating clients with high service quality priority to the idle multiple-input multiple-output group includes: evenly allocating multiple clients with high service quality priority to multiple idle multiple-input multiple-output groups. Multiple input multiple output groups.

The embodiment of the present disclosure does not place special limitations on the connection status information of the client.

In some embodiments, referring to Figure 2, obtaining connection status information of a client that has access to at least one frequency band includes:

S11. Obtain at least one of the number of connected clients in each frequency band, the real-time rate of the connected clients, the received signal strength indication information of the connected clients, and the service quality information of the connected clients, and obtain The connection status information.

It should be noted that the number of connected clients is static information and is counted when the client is connected; the real-time rate of the connected clients, the received signal strength indication information of the connected clients, the connected The client's service quality information is dynamic information and requires dynamic statistics.

In some embodiments, obtaining the real-time rate of the connected client includes: for any client, collecting a set of sending rates of the client in each cycle; calculating multiple sets of sending rates in previous cycles in each cycle. The average value is obtained to obtain the real-time rate of the client in each cycle.

For example, with a period of 1 second, collect the amount of data sent to a client (ie, the sending rate) every second, save the latest n sets of data, such as data within 5 seconds or 10 seconds, and calculate the data every second The average sending rate of the client in the last n seconds is used to obtain the implementation rate of the client.

In some embodiments, obtaining the received signal strength indication information of the connected client includes: for any client, storing multiple latest received signal strength indication values; calculating the stored multiple latest received signal strength indication values once in each cycle. The average value of the signal strength indication value is used to obtain the received signal strength indication information of the client in each cycle.

For example, with a cycle of 1 second, as long as the client is connected, it will send data to the WiFi device it is connected to. From the data sent by the client, the RSSI of its message can be obtained. Specifically, the client's RSSI is recorded. RSSI situation within a period of time, save the latest m data, and then calculate the average RSSI every second to obtain the RSSI information of the client.

In some embodiments, the number of MIMO enabled by default for each frequency band supported by the WiFi device can be configured by the user.

Correspondingly, in some embodiments, referring to Figure 6, the control method further includes:

S4. In response to system startup, determine the number of multiple input multiple outputs activated for each frequency band according to user configuration.

In some embodiments, a switch is provided in the user interface (UI, User Interface) for allowing the user to select the number of MIMO enabled by default.

In the second aspect, referring to Figure 7, an embodiment of the present disclosure provides a WiFi device, which includes:

one or more processors 101;

The memory 102 has one or more programs stored thereon. When the one or more programs are executed by one or more processors, the one or more processors implement the multiple-input multiple-output described in the first aspect of the embodiment of the present disclosure. control methods;

One or more I/O interfaces 103 are connected between the processor and the memory, and are configured to implement information exchange between the processor and the memory.

Among them, the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.; the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically Such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I/O interface (read-write interface) 103 is connected between the processor 101 and the memory 102 , can realize information interaction between the processor 101 and the memory 102, which includes but is not limited to a data bus (Bus), etc.

In some embodiments, processor 101, memory 102, and I/O interface 103 are connected to each other and, in turn, to other components of the computing device via bus 104.

In the fourth aspect, referring to FIG. 8 , an embodiment of the present disclosure provides a computer-readable medium on which a computer program is stored. When the program is executed by a processor, the multiple-input multiple-output control described in the first aspect of the embodiment of the present disclosure is implemented. method.

In order to enable those skilled in the art to more clearly understand the technical solutions provided by the embodiments of the present disclosure, the technical solutions provided by the embodiments of the present disclosure are described in detail below through specific examples:

Embodiment 1

In this embodiment, the composition architecture of the WiFi device is shown in Figure 9.

WiFi devices include:

The main function of the information collection module is to record the number of clients connected to each frequency band, the MIMO capabilities supported by each client, the maximum rate supported, RSSI information, and to count the real-time rate of each client and the business situation of each client. ;

The main function of the information analysis and processing module is to determine the number of MIMO and the allocation of MIMO groups for each frequency band based on the client information collected by the information collection module;

After the instruction execution module and the information analysis and processing module determine the number of MIMOs and the allocation of MIMOs, they send commands to the instruction execution module to complete the switching of the number of MIMOs and allocate different clients to appropriate MIMO groups.

Embodiment 2

This embodiment is based on the WiFi device of Embodiment 1.

The control process of multiple inputs and multiple outputs includes:

1. The information collection module collects the connection status information of the client. The information that needs to be collected includes: 1) the number of clients connected to each frequency band; 2) the number of streams of each client connected, and the bandwidth supported by the client, so as to determine the MIMO information supported by the client, The maximum physical layer rate that the client can support; 3) The real-time rate of the connected client. Dynamic statistics of the real-time rate include: collecting the amount of data sent to a client once per second, and saving n groups of data, such as 5 For data within seconds or 10 seconds, each client retains the latest n sets of data, and calculates the average rate of the client in the last n seconds every second; 4) Statistics of the RSSI information of each accessed client, each client No matter what state the client is in, as long as it is connected, it will send data to the WiFi device it is connected to. From these data, the RSSI of the message can be obtained, thereby determining the approximate distance between the client and the WiFi device and dynamically counting RSSI information. Including: recording the RSSI situation of the client within a period of time, saving the latest m data, and then calculating the average RSSI every second; 5) The business situation of all access clients, this embodiment mainly follows the QoS priority order To count the amount of data sent to each client.

2. Analyze and process the collected data. Includes five scenarios:

In the first scenario, when the number of clients accessing a certain frequency band is less than or equal to the number of MU-MIMO users that the current MIMO configuration of the WiFi device can support, the current configuration is maintained; for example, when the current WiFi device is configured as 4x4 MIMO, When the number of accessed users is two 2x2 clients, or one 2x2 client, or two 1x1 clients plus one 2x2 client, etc., that is, the number of MIMO connected clients is less than or equal to the WiFi device. The number of MU-MIMO users that can be supported remains unchanged with the current configuration of the WiFi device.

In the second scenario, when the number of clients connected to a certain frequency band exceeds the number of MU-MIMO users that the current MIMO configuration of the WiFi device can support, the sum of the real-time rates of the clients connected to the same frequency band is calculated. If all the clients in the frequency band If the total real-time rate of the client is less than 60% of the maximum throughput that the current MIMO configuration of the WiFi device can support, the current configuration of the WiFi device remains unchanged; otherwise, if the MIMO configuration of the current WiFi device does not reach the maximum capacity that the WiFi device can support, Then increase the MIMO configuration of the WiFi device to one level, such as from 4x4 to 6x6.

The third scenario, for 2.4G, sets an RSSI threshold, such as -75DBm. When the average RSSI of a client is less than or equal to the threshold, it means that the client is far away from the WiFi device, and clients whose RSSI is greater than the threshold end, it is considered that the client is close to the WiFi device, and the accessed clients are assigned to different MIMO groups according to this threshold. If there are many long-distance clients and there is excess MIMO available in the 2.4GHz band, Then the remote clients will be allocated to different MIMO groups again according to the number and RSSI conditions.

In the fourth scenario, based on the QoS information of each client's data packets collected in the information collection module and the rate of each client, when there is a certain or certain client's data, the proportion of high-priority packets When it exceeds 30% of the total number, it indicates that the client may be performing some services with high real-time requirements, such as video playback, video calls, voice calls, etc., and the rate should be determined according to the rate of the clients in each MIMO group. Confirm the idleness of each MIMO group, and then allocate clients with high real-time requirements to relatively idle MIMO groups.

In the fifth scenario, when the number of clients connected to a certain frequency band of the device decreases, and the total MIMO number and total rate of the clients are less than 60% of the maximum capability provided by the next-level configuration of the current MIMO configuration of the WiFi device, And if it is maintained for a long period of time, the MIMO configuration of the WiFi device in this frequency band needs to be lowered by one level.

3. Call the interface at the bottom of the chip to complete the adjustment of the MIMO configuration, including: adjusting the number of MIMOs and/or adjusting the MIMO groups.

Those of ordinary skill in the art can understand that all or some steps, systems, and functional modules/units in the devices disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may consist of several physical components. Components execute cooperatively. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is known to those of ordinary skill in the art, the term computer storage media includes volatile and nonvolatile media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. removable, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassettes, tapes, disk storage or other magnetic storage devices, or may Any other medium used to store desired information and that can be accessed by a computer. Additionally, it is known to those of ordinary skill in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a general illustrative sense only and not for purpose of limitation. In some instances, it will be apparent to those skilled in the art that features, characteristics and/or elements described in connection with a particular embodiment may be used alone, or may be used in conjunction with other embodiments, unless expressly stated otherwise. Features and/or components used in combination. Accordingly, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the scope of the present disclosure as set forth in the appended claims.

Claims (18)

1. A multiple-input multiple-output control method, applied to WiFi devices, including: Obtain the connection status information of clients connected to at least one frequency band; Determine the multiple-input multiple-output configuration information of each frequency band based on the connection status information of the connected client; The multiple-input multiple-output configuration of each frequency band is adjusted according to the multiple-input multiple-output configuration information. 2. The control method according to claim 1, wherein the multiple-input multiple-output configuration information of each frequency band is determined according to the connection status information of the connected client, including: Determine the number of multiple input multiple outputs for each frequency band based on the connection status information of the connected client. 3. The control method according to claim 2, wherein the multiple-input multiple-output number of each frequency band is determined according to the connection status information of the connected client, including: For any frequency band, determine whether the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band; When the number of connected clients exceeds the upper limit of the number of users currently supported by the frequency band, compare the sum of the real-time rates of the connected clients with the upper limit of throughput currently supported by the frequency band; If the ratio of the total real-time rate to the throughput upper limit is greater than a preset threshold, increase the number of multiple-input multiple-outputs in the frequency band. 4. The control method according to claim 2, wherein the multiple-input multiple-output quantity of each frequency band is determined according to the connection status information of the accessed client, including: For any frequency band, when the ratio of the total real-time rate of the connected clients to the throughput upper limit currently supported by the frequency band is less than the preset threshold and lasts for a preset period of time, reduce the multiple-input multiple-output of the frequency band. quantity. 5. The control method according to claim 1, wherein the multiple-input multiple-output configuration information of each frequency band is determined according to the connection status information of the connected client, including: According to the connection status information of the connected client, the client is assigned to at least one multiple-input multiple-output group. 6. The control method according to claim 5, wherein the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the accessed client, including: For any frequency band, the connected clients are divided into long-distance clients and short-distance clients based on the connection status information of the connected clients; The remote client and the close client are assigned to different multiple-input multiple-output groups. 7. The control method according to claim 6, wherein the long-distance client and the short-distance client are assigned to different multiple-input multiple-output groups, including: Determine the number of first multiple-input multiple-output groups and the number of second multiple-input multiple-output groups based on the number of remote clients and the number of close-range clients; assigning the remote client to the first multiple-input multiple-output group; The close-range client is assigned to the second multiple-input multiple-output group. 8. The control method according to claim 6, wherein the connected client is divided into a long-distance client and a short-distance client according to the connection status information of the connected client, including: For any client, when the received signal strength indication information of the client is less than or equal to the strength threshold, the client is classified as a long-distance client; If the received signal strength indication information of the client is greater than the strength threshold, the client is classified as a short-range client. 9. The control method according to claim 5, wherein the client is assigned to at least one multiple-input multiple-output group according to the connection status information of the accessed client, including: For any frequency band, determine the client's service quality priority based on the connection status information of the connected client; Clients are assigned to different MIMO groups based on their quality of service priority. 10. The control method according to claim 9, wherein the client is assigned to different multiple-input multiple-output groups according to the client's quality of service priority, including: Determining at least one idle multiple-input multiple-output group among the multiple-input multiple-output groups of the frequency band; Clients with high service quality priority are assigned to the idle multiple-input multiple-output group. 11. The control method according to claim 10, wherein allocating clients with high service quality priority to the idle multiple-input multiple-output group includes: Clients with high service quality priority are exclusively assigned to one of the idle multiple-input multiple-output groups. 12. The control method according to claim 10, wherein allocating clients with high service quality priority to the idle multiple-input multiple-output group includes: Multiple clients with high service quality priority are evenly distributed to multiple idle multiple-input multiple-output groups. 13. The control method according to any one of claims 1 to 12, wherein obtaining the connection status information of the client that has accessed at least one frequency band includes: Obtain at least one of the number of connected clients in each frequency band, the real-time rate of the connected clients, the received signal strength indication information of the connected clients, and the service quality information of the connected clients, and obtain the Connection status information. 14. The control method according to claim 13, wherein obtaining the real-time rate of the connected client includes: For any client, collect the sending rate of a group of clients in each cycle; In each cycle, the average of multiple sets of sending rates in previous cycles is calculated to obtain the real-time rate of the client in each cycle. 15. The control method according to claim 13, wherein obtaining the received signal strength indication information of the connected client includes: For any client, store multiple latest received signal strength indication values; The average value of multiple stored latest received signal strength indication values is calculated once in each cycle to obtain the received signal strength indication information of the client in each cycle. 16. The control method according to any one of claims 1 to 12, wherein the control method further includes: In response to system startup, the number of MIMOs activated for each band is determined based on user configuration. 17. A WiFi device, including: one or more processors; A memory having one or more programs stored thereon. When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 16. The multiple input multiple output control method described in the item. 18. A computer-readable medium with a computer program stored thereon. When the program is executed by a processor, the multiple-input multiple-output control method according to any one of claims 1 to 16 is implemented.