CN117692918A

CN117692918A - Multi-input multi-output control method, wiFi device and computer readable medium

Info

Publication number: CN117692918A
Application number: CN202211048661.2A
Authority: CN
Inventors: 段仕涛
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2024-03-12
Also published as: WO2024045561A1

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

Multi-input multi-output control method, wiFi device and computer readable medium

Technical Field

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

Background

WiFi is a short-range wireless communication technology, and as users' demands for wireless networks are upgraded, wiFi technology and standards are evolving continuously. Starting from WiFi 4, the WiFi technology introduces Multiple antenna and Multiple-In Multiple-Out (MIMO) technology, starting from WiFi 5, and introducing Multi-User Multiple-Input Multiple-Output (MU-MIMO) technology, wiFi 6 updates and upgrades MU-MIMO technology, supports more MIMO and higher rate, optimizes Multiple application scenarios, wiFi 6E and future WiFi 7 will introduce 6GHz frequency bands, and it is expected that devices that will operate simultaneously at three frequencies of 2.4GHz, 5GHz and 6GHz will appear.

Meanwhile, with the development of technology, the types of devices using the WiFi technology are increasing, not only mobile phones, personal computers (PC, personal Computer), tablet computers and the like can communicate through WiFi, but also various household appliances such as televisions, refrigerators, washing machines and the like can communicate through WiFi, and many internet of things (IOT, internet of Things) devices can also communicate through WiFi. The bandwidth requirements of different kinds of devices are different, for example, IOT devices only need to transmit some small amount of data occasionally and do not need large bandwidth, and devices such as mobile phones and PCs may need large bandwidth; devices that may require large bandwidth may not require large bandwidth all the time, e.g., a cell phone may require large bandwidth when playing high definition video, and may not require large bandwidth at other times; some devices have high real-time requirements when performing services such as audio and video call.

However, the WiFi device cannot well meet the wireless communication requirements of different devices and different scenes of the user, and seriously affects the use experience of the user.

Disclosure of Invention

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

In a first aspect, an embodiment of the present disclosure provides a method for controlling multiple input multiple output, which is applied to a WiFi device, including:

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.

In some embodiments, determining mimo configuration information of each frequency band according to connection status information of an accessed client includes:

and determining the number of the multiple inputs and the multiple outputs of each frequency band according to the connection state information of the accessed client.

In some embodiments, determining the number of mimo of each frequency band according to the connection status information of the accessed client includes:

for any frequency band, determining whether the number of accessed clients exceeds the upper limit of the number of users currently supported by the frequency band;

comparing the sum of the real-time rates of the accessed clients with the upper limit of the throughput currently supported by the frequency band under the condition that the number of the accessed clients exceeds the upper limit of the number of the users currently supported by the frequency band;

And increasing the number of the multiple inputs and multiple outputs of the frequency band under the condition that the ratio of the real-time rate sum to the throughput upper limit is larger than a preset threshold.

and for any frequency band, reducing the number of multiple inputs and multiple outputs of the frequency band under the condition that the ratio of the sum of the real-time rates of the accessed clients to the upper limit of the throughput currently supported by the frequency band is smaller than a preset threshold value and lasts for a preset duration.

and distributing the clients to at least one multiple-input multiple-output group according to the connection state information of the accessed clients.

In some embodiments, assigning clients to at least one multiple-input multiple-output group based on the connection status information of the accessed clients comprises:

for any frequency band, dividing the accessed client into a long-distance client and a short-distance client according to the connection state information of the accessed client;

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

In some embodiments, assigning the remote client and the close client to different multiple-input multiple-output groups comprises:

determining the number of the first multiple-input multiple-output groups and the number of the second multiple-input multiple-output groups according to the number of the remote clients and the number of the close clients;

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

the close range clients are assigned to the second multiple input multiple output group.

In some embodiments, dividing the accessed clients into a long-range client and a short-range client according to the connection state information of the accessed clients includes:

for any one client, dividing the client into remote clients under the condition that the received signal strength indication information of the client is smaller than or equal to the strength threshold value;

and dividing the client into short-range clients when the received signal strength indication information of the client is larger than the strength threshold.

For any frequency band, determining the service quality priority of the client according to the connection state information of the accessed client;

clients are assigned to different mimo groups according to their qos priorities.

In some embodiments, assigning clients to different multiple-input multiple-output groups according to their quality of service priorities includes:

determining at least one idle mimo group of the respective mimo groups of the frequency band;

and allocating the client with high service quality priority to the idle MIMO group.

In some embodiments, assigning a client with a high quality of service priority to the idle mimo group comprises:

and exclusively allocating the client with high service quality priority to one idle MIMO group.

and evenly distributing the plurality of clients with high service quality priorities to a plurality of idle multiple-input multiple-output groups.

In some embodiments, obtaining connection status information of a client to which at least one frequency band has been accessed includes:

And acquiring at least one of the number of accessed clients in each frequency band, the real-time rate of the accessed clients, the received signal strength indication information of the accessed clients and the service quality information of the accessed clients, and obtaining the connection state information.

In some embodiments, obtaining the real-time rate of the accessed client comprises:

for any one client, collecting a group of sending rates of the clients in each period;

and calculating the average value of a plurality of groups of transmission rates of a plurality of previous periods in each period to obtain the real-time rate of the client in each period.

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

for any one client, storing a plurality of latest received signal strength indication values;

and calculating an average value of a plurality of latest received signal strength indication values stored once in each period to obtain the received signal strength indication information of the client in each period.

In some embodiments, the control method further comprises:

in response to system start-up, the number of multiple-input multiple-output starts for each frequency band is determined according to user configuration.

In a second aspect, embodiments of the present disclosure provide a WiFi device, including:

one or more processors;

and a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the mimo control method according to the first aspect of the embodiments of the present disclosure.

In a third aspect, embodiments of the present disclosure provide a computer readable medium having stored thereon a computer program which, when executed by a processor, implements the method for controlling multiple input multiple output according to the first aspect of the embodiments of the present disclosure.

In the method for controlling multiple input and multiple output provided by the embodiment of the disclosure, the WiFi device can determine the multiple input and multiple output configuration information of each frequency band according to the connection status information of the accessed client of each frequency band, and adjust the multiple input and multiple output configuration of each frequency band according to the updated multiple input and multiple output configuration information, so that the adjusted multiple input and multiple output configuration can adapt to the connection status of the accessed client, dynamic and flexible adjustment of the multiple input and multiple output configuration is realized, thereby meeting the wireless communication requirements of different clients and different scenes, and being beneficial to improving the use experience of users.

Drawings

FIG. 1 is a flow chart of a method of MIMO control in an embodiment of the present disclosure;

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

FIG. 3 is a flow chart of some steps of yet another MIMO control method in accordance with an embodiment of the present disclosure;

FIG. 4 is a flow chart of some steps of yet another MIMO control method in accordance with an embodiment of the present disclosure;

FIG. 5 is a flow chart of some steps of yet another MIMO control method in accordance with an embodiment of the present disclosure;

FIG. 6 is a flow chart of some steps of yet another MIMO control method in accordance with an embodiment of the present disclosure;

fig. 7 is a block diagram of a WiFi device in an embodiment of the disclosure;

FIG. 8 is a block diagram of one component of a computer-readable medium in an embodiment of the present disclosure;

fig. 9 is a schematic architecture diagram of a WiFi device in an embodiment of the disclosure.

Detailed Description

For better understanding of the technical solutions of the present disclosure, the following describes in detail a control method of multiple input multiple output, a WiFi device, and a computer readable medium provided by the present disclosure with reference to the accompanying drawings.

Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in various 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 convey the scope of the disclosure to those skilled in the art.

Embodiments of the disclosure and features of 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 for the purpose of describing particular embodiments only and is not intended to be limiting of 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 be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of 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 be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Common WiFi devices include wireless routers, customer premise equipment (CPE, customer Premises Equipment), etc., which typically have multiple antennas and support MIMO and MU-MIMO. In some related technologies, wiFi devices are typically started with maximum MIMO capability, and the MIMO number is no longer changing, and the power consumption of the WiFi devices is large; when a client accesses to a WiFi device, the WiFi device distributes the client into a certain MIMO group according to the current client access condition and does not change any more, so that load imbalance among different MIMO groups is easy to cause; the 2.4GHz band of the WiFi device is smaller, but the transmission distance is longer, when a plurality of IOT devices share the same 2.4GHz band, the bandwidth required by the IOT devices is smaller, and the bandwidth requirement of each IOT device can not be guaranteed; when a client performs a service with high real-time requirements such as audio and video call, the service may not meet the delay requirement due to the influence of the services such as large data download and high-definition video playing performed by other terminals allocated to the same MIMO group. Due to the fact that the problems exist, common WiFi equipment cannot well meet wireless communication requirements of different equipment and different scenes, and the use experience of a user is seriously affected.

In view of this, referring to fig. 1, an embodiment of the disclosure provides a method for controlling multiple input multiple output, including:

s1, obtaining connection state information of a client accessed by at least one frequency band.

S2, determining the multi-input multi-output configuration information of each frequency band according to the connection state information of the accessed client.

S3, adjusting the MIMO configuration of each frequency band according to the MIMO configuration information.

The embodiment of the disclosure is applicable to a WiFi device which supports at least one frequency band and MIMO. The embodiments of the present disclosure do not particularly limit the WiFi device, for example, the WiFi device may be a wireless router, CPE, or the like. The frequency band supported by the WiFi device is not particularly limited in the embodiment of the disclosure. For example, the frequency bands supported by the WiFi devices include at least one of 2.4GHz, 5GHz, 6 GHz.

The embodiments of the present disclosure do not particularly limit the client. For example, the client may be an intelligent device such as a mobile phone, a PC, a tablet computer, a household appliance such as a television, a refrigerator, a washing machine, or an IOT device. In the embodiment of the present disclosure, for any frequency band supported by the WiFi device, the number of accessed clients is greater than or equal to 0, which is not particularly limited in the embodiment of the present disclosure.

In the embodiment of the disclosure, the MIMO configuration of the frequency band may be adjusted, for example, the MIMO number of the frequency band is increased, for example, the MIMO number of the frequency band is adjusted from 4×4 to 6×6, or the MIMO number of the frequency band is reduced, for example, the MIMO number of the frequency band is adjusted from 8×8 to 4×4; or adjusting the MIMO group of the frequency band; MIMO configurations of the frequency band other than the MIMO number and MIMO group may also be adjusted. The embodiments of the present disclosure are not particularly limited thereto.

In the embodiment of the present disclosure, the steps S1 to S3 may be used to adjust MIMO configuration of all or part of the frequency bands supported by the WiFi device. For example, the MIMO configuration of only one frequency band is adjusted, or the MIMO configuration of two or three frequency bands is adjusted. The embodiments of the present disclosure are not particularly limited thereto.

According to the multi-input multi-output control method provided by the embodiment of the disclosure, the multi-input multi-output configuration information of each frequency band can be determined according to the connection state information of the accessed client of each frequency band, and the multi-input multi-output configuration of each frequency band is adjusted according to the updated multi-input multi-output configuration information, so that the adjusted multi-input multi-output configuration can be adapted to the connection state of the accessed client, dynamic and flexible adjustment of the multi-input multi-output configuration is realized, wireless communication requirements of different clients and different scenes can be met, and the use experience of users is facilitated.

The embodiments of the present disclosure are not particularly limited as to how to adjust the mimo configuration of the frequency band. In some embodiments, the MIMO number of WiFi devices can be dynamically adjusted. Accordingly, in order to implement adjustment of the MIMO number, when the MIMO configuration information of the frequency band is determined according to the connection status information of the accessed client, the MIMO number of the frequency band after adjustment is determined.

Accordingly, in some embodiments, referring to fig. 2, determining mimo configuration information of each frequency band according to connection status information of an accessed client includes:

s21, determining the number of multiple inputs and multiple outputs of each frequency band according to the connection state information of the accessed client.

The embodiments of the present disclosure are not particularly limited as to how to adjust the MIMO number.

In some embodiments, the connection status information of the clients characterizes the number of accessed clients, and the MIMO number or the smaller MIMO number may be increased according to the number of accessed clients. For example, when the number of clients accessed in a certain frequency band is large, the number of MIMO in the frequency band is increased to ensure that the requirements of bandwidth, speed, throughput and the like of each client can be met; when the number of clients accessed in a certain frequency band is smaller, the MIMO number of the frequency band is reduced, and the power consumption of WiFi equipment can be saved on the basis of meeting the requirements of bandwidth, speed, throughput and the like of the clients.

In some embodiments, the connection status information of the client characterizes the real-time rate of the accessed client, and when the MIMO number is adjusted, the sum of the real-time rates of the accessed client can be compared with the maximum capability that the current MIMO configuration of the frequency band can support, and the MIMO number of the frequency band can be increased or decreased according to the comparison result.

In some embodiments, the connection status information of the client characterizes the real-time rate of the accessed client and the number of accessed clients, and when adjusting the MIMO number, the MIMO number of the frequency bands is adjusted in combination with the number of accessed clients and the real-time rate of the accessed clients.

Accordingly, in some embodiments, referring to fig. 3, determining the number of mimo of each frequency band according to the connection status information of the accessed client includes:

s211, for any frequency band, determining whether the number of accessed clients exceeds the upper limit of the number of users currently supported by the frequency band.

S212, comparing the real-time rate sum of the accessed clients with the throughput upper limit currently supported by the frequency band under the condition that the number of the accessed clients exceeds the user upper limit currently supported by the frequency band.

S213, increasing the number of the multiple inputs and multiple outputs of the frequency band under the condition that the ratio of the real-time rate sum to the throughput upper limit is larger than a preset threshold.

In the embodiment of the present disclosure, the number of MIMO configured 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 MIMO number of the currently configured frequency band. For example, when the MIMO number of the currently configured frequency band is 4×4, 2×2 clients, or 4 1×1 clients, or 21×1 clients and 1 2×2 clients can be supported at most.

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

The embodiments of the present disclosure are not particularly limited as to how to increase the MIMO number. In some embodiments, the MIMO number is divided into a plurality of levels, for example, a plurality of levels such as 2×2, 4×4, 6×6, 8×8, etc., and when the MIMO number of the frequency band needs to be increased, the MIMO number configured in the frequency band is increased by one level, for example, from 4×4 to 6×6; and if one level is raised, comparing the real-time rate sum of the clients accessed by the frequency band with the throughput upper limit supported by the raised level through steps S211 to S213 until the highest level is reached or the ratio of the real-time rate sum to the throughput upper limit is smaller than or equal to a preset threshold.

In some embodiments, for any frequency band, if the number of accessed clients does not exceed the upper limit of the number of users currently supported by the frequency band, or if the ratio of the sum of real-time rates to the upper limit of throughput is not greater than a preset threshold, the MIMO number of the frequency band is not adjusted.

In the embodiment of the disclosure, the number of accessed clients and the MIMO number of the frequency band are combined, so that the user number capability and throughput capability supported by the frequency band can be considered, and the use efficiency of MIMO is improved on the basis of ensuring the rate requirements of all clients.

In some embodiments, referring to fig. 3, determining the number of mimo of each frequency band according to the connection status information of the accessed client includes:

s214, for any frequency band, reducing the number of multiple inputs and multiple outputs of the frequency band under the condition that the ratio of the sum of the real-time rates of the accessed clients to the upper limit of the throughput currently supported by the frequency band is smaller than a preset threshold value and lasts for a preset duration.

In the embodiment of the present disclosure, the MIMO number may be reduced for each frequency band supported by the WiFi device under the condition that the condition of step S214 is satisfied; for new frequency bands, for example, 6GHz frequency bands that will be introduced by WiFi 6E and future WiFi 7 devices, there may be fewer clients accessing, and the MIMO number of the new frequency bands may be purposefully reduced in step S214.

For example, in some scenarios, the CPE or wireless router supports 2.4GHz, 5GHz, 6GHz three frequency concurrency, but a station supporting 6GHz has not yet occurred or is relatively small, and the CPE or wireless router may be operated in a low MIMO configuration in the 6GHz band. In most home use scenarios, when no one is in the home, the wireless router or CPE in the home may have fewer clients without clients accessing or accessing, and may also operate in a low MIMO configuration.

The embodiments of the present disclosure are not particularly limited as to how to increase the MIMO number. In some embodiments, the MIMO number is divided into a plurality of levels, for example, a plurality of levels of 2×2, 4×4, 6×6, 8×8, etc., and when the MIMO number of the frequency band needs to be reduced, the MIMO number of the frequency band configuration 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 implement adjustment of the MIMO group, it is necessary to reallocate the MIMO group to the accessed client when determining the MIMO configuration information of the frequency band according to the connection status information of the accessed client.

S22, the clients are distributed to at least one MIMO group according to the connection state information of the accessed clients.

The embodiments of the present disclosure are not particularly limited as to how MIMO groups are reallocated.

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

Accordingly, in some embodiments, referring to fig. 4, assigning clients to at least one multiple-input multiple-output group according to the connection status information of the accessed clients includes:

s221, for any frequency band, dividing the accessed client into a long-distance client and a short-distance client according to the connection state information of the accessed client.

S222, the long-distance client and the short-distance client are distributed to different multiple-input multiple-output groups.

The embodiments of the present disclosure are not particularly limited as to how the accessed clients are divided into long-range clients and short-range clients. In some embodiments, the connection state information may characterize location information of the clients, and the accessed clients are divided into long-range clients and short-range clients according to the location information of the clients. In some embodiments, the connection status information may characterize received signal strength indication (RSSI, received Signal Strength Indication) information of the client, and the RSSI information of the client may reflect a distance relationship between the client and the WiFi device, so that the accessed client may be divided into a long-range client and a short-range client according to the RSSI information of the client.

It should be noted that, in the embodiment of the present disclosure, the bandwidth requirements of the remote client and the close-range client may be different, for example, in the 2.4GHz band, the bandwidth required by the remote client is smaller, the bandwidth required by the close-range client is larger, and the remote client and the close-range client are allocated to different MIMO groups, so that the remote client and the close-range client can be prevented from affecting each other, and thus the bandwidth requirements of the respective clients can be guaranteed.

For example, more and more smart home devices are currently available in the home, more smart home devices may be connected to the wireless router or CPE, and in this scenario, many smart home devices may only support the 2.4GHz band and may be placed at different locations in the home and may be far away from the router or CPE, if the 2.4GHz MIMO configuration is higher, and these smart home devices are allocated to different MIMO groups, so that normal communication of these smart home devices can be ensured.

In embodiments of the present disclosure, when assigning a remote client and a close client to different MIMO groups, the remote client may be assigned to one or more MIMO groups and the close client may be assigned to one or more MIMO groups. The embodiments of the present disclosure are not particularly limited thereto.

In some embodiments, the number of MIMO groups for the remote client and the MIMO groups for the close range client may be adjusted according to the number of remote clients and close range clients for any one frequency band. For example, if the number of remote clients is large, the number of MIMO groups of the remote clients is increased; if the number of close-range clients is large, the number of MIMO of the close-range clients increases.

Accordingly, in some embodiments, assigning the remote client and the close client to different multiple-input multiple-output groups includes: determining the number of the first multiple-input multiple-output groups and the number of the second multiple-input multiple-output groups according to the number of the remote clients and the number of the close clients; assigning the remote client to the first multiple-input multiple-output group; the close range clients are assigned to the second multiple input multiple output group.

The first MIMO group refers to a MIMO group of a remote client, and the second MIMO group refers to a MIMO group of a close client.

In some embodiments, dividing the accessed clients into a long-range client and a short-range client according to the connection state information of the accessed clients includes: for any one client, dividing the client into remote clients under the condition that the received signal strength indication information of the client is smaller than or equal to the strength threshold value; and dividing the client into short-range clients when the received signal strength indication information of the client is larger than the strength threshold.

For example, for the 2.4GHz band, setting the intensity threshold to be-75 DBm, and dividing the client into remote devices when the RSSI information of the client is less than or equal to-75 DBm and the client is considered to be far away from the WiFi device; when the RSSI information of the client is larger than-75 DBm, the client is considered to be close to the WiFi device, and the client is divided into short-distance devices.

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

In some embodiments, referring to fig. 5, assigning clients to at least one multiple-input multiple-output group according to connection status information of accessed clients includes:

s223, for any frequency band, determining the service quality priority of the client according to the connection state information of the accessed client.

S224, the clients are distributed to different MIMO groups according to the service quality priorities of the clients.

The embodiments of the present disclosure are not particularly limited as to how clients are assigned to different MIMO groups according to their quality of service (QoS, quality of Service) priorities. For example, a client with a high QoS priority is enabled to monopolize one MIMO group, so that the service quality of the client can be ensured, for example, the client is in progress with services with high real-time requirements such as audio/video call, and the client is exclusively allocated to one MIMO group, so that the influence of services such as large data download and high-definition video play of other clients can be avoided. For example, when there are multiple clients with high QoS priorities, the multiple clients with high QoS priorities are dispersed into different MIMO groups, for example, the multiple clients that are performing services with high real-time requirements such as audio and video calls are evenly distributed to multiple more idle MIMO groups, so that delay increase caused by service queuing of the multiple clients can be avoided. Therefore, in the embodiment of the disclosure, the clients are allocated to different MIMO groups according to the QoS priorities of the clients, so that the service quality of the clients can be ensured in different scenes.

Accordingly, in some embodiments, assigning clients to different multiple-input multiple-output groups according to their quality of service priorities includes: determining at least one idle mimo group of the respective mimo groups of the frequency band; and allocating the client with high service quality priority to the idle MIMO group.

Accordingly, in some embodiments, assigning a client with a high quality of service priority to the idle mimo group comprises: and exclusively allocating the client with high service quality priority to one idle MIMO group.

Accordingly, in some embodiments, assigning a client with a high quality of service priority to the idle mimo group comprises: and evenly distributing the plurality of clients with high service quality priorities to a plurality of idle multiple-input multiple-output groups.

The connection state information of the client is not particularly limited in the embodiment of the present disclosure.

In some embodiments, referring to fig. 2, obtaining connection status information of a client to which at least one frequency band has been accessed includes:

s11, obtaining at least one of the number of accessed clients in each frequency band, the real-time rate of the accessed clients, the received signal strength indication information of the accessed clients and the service quality information of the accessed clients, and obtaining the connection state information.

It should be noted that, the number of accessed clients is static information, and the clients are accessed for statistics; the real-time rate of the accessed client, the received signal strength indication information of the accessed client and the service quality information of the accessed client are dynamic information, and dynamic statistics is needed.

In some embodiments, obtaining the real-time rate of the accessed client comprises: for any one client, collecting a group of sending rates of the clients in each period; and calculating the average value of a plurality of groups of transmission rates of a plurality of previous periods in each period to obtain the real-time rate of the client in each period.

For example, the transmission rate of data to a client is acquired every second with a period of 1 second (i.e., transmission rate), the latest n sets of data, such as data within 5 seconds or 10 seconds, are stored, and the average value of the latest n seconds of transmission rate of the client is calculated every second, so as to obtain the implementation rate of the client.

In some embodiments, obtaining the received signal strength indication information of the accessed client includes: for any one client, storing a plurality of latest received signal strength indication values; and calculating an average value of a plurality of latest received signal strength indication values stored once in each period to obtain the received signal strength indication information of the client in each period.

For example, with 1 second as a period, the client will send data to the WiFi device to which it is connected as long as it is in a connected state, and the RSSI of the message can be obtained from the data sent by the client, specifically, the RSSI condition of the client in a period of time is recorded, the latest m data are saved, and then the average value of the RSSI is calculated every second, so as to obtain the RSSI information of the client.

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

Accordingly, in some embodiments, referring to fig. 6, the control method further comprises:

s4, responding to system starting, and determining the number of multiple inputs and multiple outputs of each frequency band starting according to user configuration.

In some embodiments, a switch is provided in a User Interface (UI) for enabling a User to select a default number of MIMO to be activated.

In a second aspect, referring to fig. 7, an embodiment of the present disclosure provides a WiFi device, including:

one or more processors 101;

a memory 102 having one or more programs stored thereon, which when executed by one or more processors, cause the one or more processors to implement the multiple input multiple output control method according to the first aspect of the embodiments of the present disclosure;

One or more I/O interfaces 103, coupled between the processor and the memory, are configured to enable information interaction of the processor with the memory.

Wherein the processor 101 is a device having data processing capabilities, including but not limited to a Central Processing Unit (CPU) or the like; memory 102 is a device with data storage capability including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically charged erasable programmable read-only memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) 103 is connected between the processor 101 and the memory 102 to enable information interaction between the processor 101 and the memory 102, including but not limited to a data Bus (Bus) or the like.

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

In a fourth aspect, referring to fig. 8, an embodiment of the present disclosure provides a computer readable medium having a computer program stored thereon, which when executed by a processor implements the method for controlling multiple input multiple output according to the first aspect of the embodiment of the present disclosure.

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 following details of the technical solutions provided by the embodiments of the present disclosure are described by specific embodiments:

Example 1

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

The WiFi device includes:

the information acquisition module is mainly used for recording the number of accessed clients of each frequency band, MIMO capability supported by each client, maximum supported speed and RSSI information, and counting the real-time speed of each client and the service condition of each client;

the information analysis processing module is mainly used for determining the MIMO quantity and the distribution condition of the MIMO group according to the information of the client acquired by the information acquisition module aiming at each frequency band;

and the instruction execution module sends a command to the instruction execution module to complete the switching of the MIMO quantity and distribute different clients to the proper MIMO group after the information analysis processing module makes a decision on the MIMO quantity and the MIMO distribution condition.

Example two

The present embodiment is based on the WiFi device of the first embodiment.

The control process of the multiple input multiple output comprises the following steps:

1. the information acquisition module acquires connection state information of the client. The information to be collected includes: 1) The number of clients accessed per frequency band; 2) The number of streams of each accessed client and the bandwidth supported by the client are determined, so that the information of MIMO supported by the client and the maximum physical layer rate which can be supported by the client are determined; 3) The real-time rate condition of the accessed client side, the dynamic statistics of the real-time rate condition comprises: collecting data transmission quantity sent to a certain client once every second, storing n groups of data, such as data in 5 seconds or 10 seconds, each client retaining the latest n groups of data, and calculating the latest n seconds average rate of the client once every second; 4) The RSSI information of each accessed client is counted, each client can send data to the WiFi equipment connected with the client no matter what state the client is in, and the RSSI of a message can be obtained from the data, so that the approximate distance between the client and the WiFi equipment is judged, and the dynamic RSSI information counting method comprises the following steps: recording RSSI conditions of the client in a period of time, storing the latest m times of data, and calculating an average value of RSSIs every second; 5) The service conditions of all access clients are counted according to QoS priority order in this embodiment.

2. Analyzing and processing the acquired data. The method comprises five scenes:

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 can be supported by the current MIMO configuration of the WiFi device, the current configuration is maintained; for example, when the current WiFi device is configured as 4×4 MIMO, the number of access users is 2x2 clients, or 1x 2 client, or 2x 1 clients plus 1x 2 client, that is, the number of MIMO of the accessed clients is less than or equal to the number of MU-MIMO users that the WiFi device can support, then the current configuration of the WiFi device is kept unchanged.

In the second scenario, when the number of clients accessing to a certain frequency band exceeds the number of MU-MIMO users which can be supported by the current MIMO configuration of the WiFi device, calculating the sum of real-time rates of the clients accessing to the same frequency band, and if the sum of the real-time rates of all the clients in the frequency band is less than 60% of the maximum throughput which can be supported by the current MIMO configuration of the WiFi device, keeping the current configuration of the WiFi device unchanged; otherwise, if the MIMO configuration of the current WiFi device does not reach the maximum capability that the WiFi device can support, the MIMO configuration of the WiFi device is promoted by one level, such as from 4x4 to 6x6.

In a third scenario, for 2.4G, a threshold value of RSSI, for example, -75DBm, is set, when the average RSSI of a certain client is less than or equal to the threshold value, it indicates that the client is far away from the WiFi device, and that the RSSI is greater than the threshold value, the client is considered to be closer to the WiFi device, the accessed client is allocated to a different MIMO group according to the threshold value, if there are more remote clients and there are redundant MIMO in the 2.4GHz band, the remote clients are allocated to a different MIMO group again according to the number and RSSI conditions.

In a fourth scenario, according to QoS information of data packets of each client acquired in the information acquisition module and rate conditions of each client, when a proportion of messages with high priority in data of a certain client or data of some clients exceeds 30% of the total number of the clients, the client is identified to possibly perform services with high real-time performance requirements, such as video playing, video communication, voice communication and the like, idle degree of each MIMO group is confirmed according to the rate conditions of the clients in each MIMO group, and then the client with high real-time performance requirements is allocated to the idle MIMO group.

In a fifth scenario, when the number of clients accessing a certain frequency band of the present device is reduced, and the total MIMO number and total rate of the clients are less than 60% of the maximum capability that can be provided by the next level of the current MIMO configuration of the WiFi device, and the period of time is maintained, the MIMO configuration of the frequency band of the WiFi device needs to be reduced by one level.

3. Calling an interface of a chip bottom layer to complete adjustment of MIMO configuration, comprising: adjust the number of MIMO and/or adjust the MIMO group.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the 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 be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or 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). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, 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 includes 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 generic and descriptive sense only and not for purpose of limitation. In some instances, it will be apparent to one skilled in the art that features, characteristics, and/or elements described in connection with a particular embodiment may be used alone or in combination with other embodiments unless explicitly stated otherwise. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.

Claims

1. A control method of multiple input multiple output is applied to WiFi equipment, and comprises the following steps:

2. The control method of claim 1, wherein determining the mimo configuration information of each frequency band according to the connection status information of the accessed client comprises:

3. The control method of claim 2, wherein determining the number of mimo of each frequency band according to the connection status information of the accessed client comprises:

4. The control method according to claim 2, wherein determining the number of mimo of each frequency band according to the connection status information of the accessed client comprises:

5. The control method of claim 1, wherein determining the mimo configuration information of each frequency band according to the connection status information of the accessed client comprises:

6. The control method of claim 5, wherein assigning clients to at least one multiple-input multiple-output group according to the connection state information of the accessed clients, comprises:

7. The control method of claim 6, wherein assigning the remote client and the close client to different multiple-input multiple-output groups comprises:

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

8. The control method of claim 6, wherein dividing the accessed clients into the long-range clients and the short-range clients according to the connection state information of the accessed clients comprises:

9. The control method of claim 5, wherein assigning clients to at least one multiple-input multiple-output group according to the connection state information of the accessed clients, comprises:

10. The control method of claim 9, wherein assigning clients to different multiple-input multiple-output groups according to their quality of service priorities comprises:

11. The control method of claim 10, wherein assigning a client with a high quality of service priority to the idle multiple-input multiple-output group comprises:

12. The control method of claim 10, wherein assigning a client with a high quality of service priority to the idle multiple-input multiple-output group comprises:

13. The control method according to any one of claims 1 to 12, wherein obtaining connection state information of a client to which at least one frequency band has been accessed includes:

14. The control method of claim 13, wherein obtaining the real-time rate of the accessed client comprises:

15. The control method of claim 13, wherein obtaining received signal strength indication information of an accessed client comprises:

16. The control method according to any one of claims 1 to 12, wherein the control method further comprises:

17. A WiFi device, comprising:

one or more processors;

a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the method of multiple input multiple output control of any of claims 1 to 16.

18. A computer readable medium having stored thereon a computer program which when executed by a processor implements the multiple input multiple output control method according to any one of claims 1 to 16.