CN113472496B

CN113472496B - Multi-channel processing method and related equipment

Info

Publication number: CN113472496B
Application number: CN202010249572.9A
Authority: CN
Inventors: 赵望生
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2023-07-28
Anticipated expiration: 2040-03-31
Also published as: CN113472496A; WO2021197325A1

Abstract

The embodiment of the application provides a multi-channel processing method and related equipment, the method comprises the steps that an Access Point (AP) generates a first message, the first message comprises a first preamble and a second preamble, the first preamble comprises first bandwidth information, the first bandwidth information is configured according to the bandwidth of a first channel occupied by a first group of Station (STA), the second preamble comprises second bandwidth information, and the second bandwidth information is configured according to the bandwidth of a second channel occupied by a second group of Station (STA); the AP sends a first message to the first group of STAs and the second group of STAs, the first message comprises first data and second data, and the AP receives a first response frame from the first group of STAs and a second response frame from the second group of STAs.

Description

Multi-channel processing method and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a multi-channel processing method and related devices.

Background

With the continuous development of business applications, the requirements on the network are also increasing. In order to meet the requirements of service development, wireless internet WiFi technology is gradually evolved to support higher and higher rates. However, when the bandwidth supported by the station is lower than the bandwidth capability supported by the access point, data transmission can only be performed according to the bandwidth capability supported by the station, thereby causing waste. How to fully channel resources and to increase the overall air interface rate is a technical problem that is being studied by those skilled in the art.

Disclosure of Invention

The embodiment of the application discloses a multi-channel processing method and related equipment, which can fully utilize channel resources and improve the overall air interface rate.

The first aspect of the embodiment of the application discloses a multi-channel processing method, which comprises the following steps:

an Access Point (AP) generates a first message, wherein the first message comprises a first preamble and a second preamble, the first preamble comprises first bandwidth information, the first bandwidth information is configured according to the bandwidth of a first channel occupied by a first group of Station (STA), the second preamble comprises second bandwidth information, the second bandwidth information is configured according to the bandwidth of a second channel occupied by a second group of Station (STA), the first channel and the second channel have no intersection, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is smaller than or equal to the bandwidth supported by the AP;

the AP sends the first packet to the first group of STAs and the second group of STAs, the first packet including first data and second data, the first preamble being for instructing the first group of STAs to receive the first data using the first bandwidth information, and the second preamble being for instructing the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs including at least one STA, the second group of STAs including at least one STA;

The AP receives a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame being for informing the AP that the first group of STAs has received the first data, the second response frame being for informing the AP that the second group of STAs has received the second data.

In the method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP may allocate subcarriers for receiving data to the STA by modifying the preamble, that is, the first message includes the first preamble and the second preamble, the first group STA obtains the subcarriers allocated to the first group STA by identifying the first preamble and obtains the first data according to the subcarriers, and the second group STA obtains the subcarriers allocated to the second group STA by identifying the second preamble and obtains the second data according to the subcarriers, so that resources of the first channel and the second channel can be fully utilized by a multi-channel processing manner, avoiding that the AP and the STA do not support the high bandwidth capability, only negotiating to use only one channel according to the lower bandwidth capability, thereby causing waste, reducing the occurrence of the situation of the overall air interface rate, simultaneously transceiving data on the first channel and the second channel, avoiding the situation of causing interference due to data asynchronous transceiving, and avoiding the situation of sending the response frame to the STA, and avoiding the waiting for the AP to receive the data in a continuous manner.

In one alternative, the first preamble includes first spectrum allocation information for indicating frequency domain resources of the first group of STAs to receive the first data, and the second preamble includes second spectrum allocation information for indicating frequency domain resources of the second group of STAs to receive the second data.

In yet another alternative, the AP determines traffic of the first channel and traffic of the second channel;

when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, the AP sends a first notification message to a part of STAs in the first group of STAs, where the first notification message is used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, the AP sends a second notification message to a part of STAs in the second group of STAs, where the second notification message is used to instruct the part of STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

In the method, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel, in this way, the extreme condition that the load on one channel is very heavy and the load on the other channel is very light can be avoided, the traffic condition on the channel can be comprehensively considered, and the resources can be reasonably utilized.

In yet another alternative, the AP transmits a first management frame on the first channel, the first management frame being used by the first group of STAs to determine a connection status with the AP;

the AP transmits a second management frame on the second channel, the second management frame for the second group of STAs to determine a connection status with the AP.

In the method, the AP sends the first management frame on the first channel and sends the second management frame on the second channel, so that the STA can know that the AP exists nearby by monitoring the management frame on the channel, and can keep connection with the AP, thereby carrying out data communication rapidly.

In yet another alternative, the AP sends a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, where the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP, and the first trigger frame includes a first duration, where the first duration is a time when the third data is transmitted on the first channel;

The AP receives third data sent by the first group of STA on the first channel;

the AP transmitting a third response frame to the first set of STAs on the first channel, the third response frame being for informing the first set of STAs that the AP has received the third data;

the AP sends a second trigger frame to the second group of STAs on the second channel, wherein the second trigger frame comprises second spectrum allocation information, the second spectrum allocation information is used for indicating the second group of STAs to send frequency domain resources of fourth data to the AP, the second trigger frame comprises a second duration, and the second duration is the time for transmitting the fourth data on the second channel, and the first trigger frame and the second trigger frame are used for indicating that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel;

the AP receives fourth data sent by the second group of STA on the second channel;

the AP transmits a fourth response frame to the second group of STAs on the second channel, the fourth response frame being used to inform the second group of STAs that the AP has received the fourth data.

In the method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP informs the STA of the sub-carrier when transmitting data information to the AP by transmitting a trigger frame to the STA, the first channel and the second channel resources can be fully utilized by a multi-channel processing mode, the total air interface rate is improved, the resource waste caused by using only the resource of one of the channels when the bandwidth capability of the AP and the STA are inconsistent and only the negotiation can be performed according to the low bandwidth capability is avoided, the transmission time of the trigger frame indicating data on the first channel and the second channel is the same, the interference is avoided, the data quality is ensured, and the STA is timely informed of the received data by transmitting a response frame to the STA by the AP, so that the resource waste caused by continuous waiting of the STA is avoided.

In yet another alternative, the AP transmits the first preamble and the first data to the first group of STAs on the first channel and the second preamble and the second data to the second group of STAs on the second channel at the same time, wherein a transmission time of the first preamble and the first data on the first channel is the same as a transmission time of the second preamble and the second data on the second channel.

The second aspect of the embodiment of the application discloses a multi-channel processing method, which comprises the following steps:

the method comprises the steps that a station STA receives a first message sent by an access point AP, wherein the first message comprises a first preamble and a second preamble;

the station STA identifies a first preamble in the first message or a second preamble in the first message, where the first preamble includes first bandwidth information configured according to a bandwidth of a first channel occupied by a first group of station STAs, and the second preamble includes second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of station STAs;

the station STA receives first data according to the first bandwidth information or receives second data according to the second bandwidth information, wherein the first message comprises the first data and the second data, the first channel and the second channel have no intersection, the sum of the bandwidth of the first channel and the bandwidth of the second channel is smaller than or equal to the bandwidth supported by the AP, the station STA is a first group of station STA or a second group of station STA, the first group of STA comprises at least one STA, and the second group of STA comprises at least one STA;

The STA sending a first response frame to the AP on a first channel, the first response frame being for informing the AP that the STA has received the first data; or the STA sends a second response frame to the AP on a second channel, the second response frame being used to notify the AP that the STA has received the second data.

In an alternative scheme, the first preamble includes first spectrum allocation information, the first spectrum allocation information is used to indicate that the first group of STAs receives frequency domain resources of first data, and the second preamble includes second spectrum allocation information, the second channel allocation information is used to indicate that the second group of STAs receives frequency domain resources of second data.

In yet another alternative, when the difference between the traffic of the first channel and the traffic of the second channel is greater than a first threshold, a part of STAs in the STAs receive a first notification message sent by the AP, where the first notification message is used to instruct a part of STAs in the STAs to switch from the first channel to the second channel; or (b)

And when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is larger than a first threshold value, part of the STAs receive a second notification message sent by the AP, and the second notification message is used for indicating part of the STAs to switch from the second channel to the first channel.

In the method, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel, in this way, the extreme situation that the load on one channel is very heavy and the load on the other channel is very light can be avoided, the traffic situation on the channel can be comprehensively considered, and the resources are reasonably utilized.

In yet another alternative, the STA receives a first management frame on the first channel sent by the AP, the first management frame being used by the first group of STAs to determine a connection status with the AP;

the STA receives the AP on the second channel to send a second management frame, where the second management frame is used by the second group of STAs to determine a connection state with the AP.

In the method, the AP sends the first management frame on the first channel and sends the second management frame on the second channel, so that the STA can know that the AP exists nearby by monitoring the management frame on the channel, and can keep connection with the AP to quickly perform data communication.

In yet another alternative, the STA receives a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information, the first spectrum allocation information is used to indicate a frequency domain resource of the STA to send third data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel;

the STA sends the third data to the AP;

the STA receives a third response frame of the AP, wherein the third response frame is used for notifying the STA that the AP has received the third data; or (b)

The STA receives a second trigger frame sent by the AP on the second channel, wherein the second trigger frame comprises second spectrum allocation information, the second spectrum allocation information is used for indicating the STA to send frequency domain resources of fourth data to the AP, the second trigger frame comprises a second duration, the second duration is the time of the fourth data to be transmitted on the second channel, and the first trigger frame and the second trigger frame are used for indicating that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel;

the STA sends the fourth data to the AP;

the STA receives a fourth response frame of the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

In the method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP informs the STA of the sub-carrier when transmitting data information to the AP by transmitting a trigger frame to the STA, and can fully utilize the resources of the first channel and the second channel by a multi-channel processing manner, so as to transmit and receive data on the first channel and the second channel simultaneously, avoid the problem that the AP and the STA cannot support the high bandwidth capability, only use one channel according to the negotiation of the lower bandwidth capability, thereby causing waste, reducing the occurrence of the situation of overall air interface rate, avoiding interference by indicating that the transmission time of data on the first channel and the second channel is the same by the trigger frame, ensuring the data quality, and timely informing the STA by transmitting a response frame to the STA by the AP, and avoiding the continuous waiting of the STA to cause the resource waste.

A third aspect of an embodiment of the present application discloses a multi-channel processing apparatus, including:

the processing unit is configured to generate a first packet, where the first packet includes a first preamble and a second preamble, the first preamble includes first bandwidth information, the first bandwidth information is configured according to a bandwidth of a first channel occupied by a first group of STAs, the second preamble includes second bandwidth information, the second bandwidth information is configured according to a bandwidth of a second channel occupied by a second group of STAs, the first channel and the second channel have no intersection, and a sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to a bandwidth supported by the AP;

a communication unit, configured to send the first packet to the first group of STAs and the second group of STAs, where the first packet includes first data and second data, the first preamble is configured to instruct the first group of STAs to receive the first data using the first bandwidth information, and the second preamble is configured to instruct the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit is configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, where the first response frame is used to notify the first group of STAs that the first data has been received, and the second response frame is used to notify the second group of STAs that the second data has been received.

In the above device, when the bandwidth capability supported by the AP is greater than the bandwidth capability supported by the STA of the station, in the downlink direction, the AP may allocate subcarriers for receiving data to the STA by modifying the preamble, that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarriers allocated to the first group of STAs by identifying the first preamble and obtains the first data according to the subcarriers, and the second group of STAs obtains the subcarriers allocated to the second group of STAs by identifying the second preamble and obtains the second data according to the subcarriers, so that resources of the first channel and the second channel can be fully utilized by a multi-channel processing manner, avoiding that the AP and the STA do not support the high bandwidth capability, only negotiating to use only one channel according to the lower bandwidth capability, thereby causing waste, reducing the occurrence of the situation of the overall air interface rate, simultaneously transceiving data on the first channel and the second channel, avoiding the situation that the data is not synchronized to cause interference, and notifying the AP of the waiting for receiving data in time, and avoiding the continuous manner that the STA receives the data.

In an alternative, the first preamble includes first spectrum allocation information, the first spectrum allocation information indicating frequency domain resources of the first group of STAs to receive the first data, and the second preamble includes second spectrum allocation information indicating frequency domain resources of the second group of STAs to receive the second data.

In yet another alternative, the processing unit is further configured to determine a traffic flow of the first channel and a traffic flow of the second channel;

the communication unit is further configured to send a first notification message to a part of STAs in the first group of STAs when a difference between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, where the first notification message is used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; the communication unit is further configured to send a second notification message to a part of STAs in the second group of STAs when a difference between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, where the second notification message is used to instruct the part of STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

In the device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel, in this way, the extreme situation that the load on one channel is very heavy and the load on the other channel is very light can be avoided, the traffic situation on the channel can be comprehensively considered, and the resources are reasonably utilized.

In yet another alternative, the communication unit is further configured to send a first management frame on the first channel, where the first management frame is used by the first group of STAs to determine a connection state with the AP;

the communication unit is further configured to send a second management frame on the second channel, where the second management frame is used for the second group of STAs to determine a connection state with the AP.

In the above device, the AP transmits the first management frame on the first channel and transmits the second management frame on the second channel, so that the STA can know that there is an AP nearby by monitoring the management frame on the channel, and can maintain connection with the AP, thereby rapidly performing data communication.

In yet another alternative, the communication unit is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, where the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP, and the first trigger frame includes a first duration, where the first duration is a time when the third data is transmitted on the first channel;

The communication unit is further configured to receive third data sent by the first group of STAs on the first channel;

the communication unit is further configured to send a third response frame to the first group of STAs on the first channel, where the third response frame is used to notify the first group of STAs that the AP has received the third data;

the communication unit is further configured to send a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to send a frequency domain resource of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time for the fourth data to be transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct the third data to be transmitted on the first channel and the fourth data to be transmitted on the second channel in the same time;

the communication unit is further configured to receive fourth data sent by the second group of STAs on the second channel;

the communication unit is further configured to send a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.

In the device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP informs the STA of the sub-carrier when transmitting data information to the AP by transmitting a trigger frame to the STA, and can fully utilize the resources of the first channel and the second channel by a multi-channel processing manner, thereby improving the overall air rate, avoiding resource waste caused by using only the resources of one of the channels when the bandwidth capability of the AP and the STA are inconsistent and only negotiation can be performed according to the low bandwidth capability, and avoiding interference caused by the same transmission time of the trigger frame indicating data on the first channel and the second channel, ensuring data quality, and timely notifying the STA of the received data by transmitting a response frame to the STA by the AP, and avoiding continuous waiting of the STA.

In yet another alternative, the communication unit is further configured to send the first preamble and the first data to the first group of STAs on the first channel and send the second preamble and the second data to the second group of STAs on the second channel at the same time, where a transmission time of the first preamble and the first data on the first channel is the same as a transmission time of the second preamble and the second data on the second channel.

A fourth aspect of the present application discloses a multi-channel processing apparatus, including:

the communication unit is used for receiving a first message sent by an Access Point (AP), wherein the first message comprises a first lead code and a second lead code;

a processing unit, configured to identify a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information configured according to a bandwidth of a first channel occupied by a first group of STAs, and the second preamble includes second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of STAs;

the communication unit is further configured to receive first data according to the first bandwidth information or receive second data according to the second bandwidth information, where the first packet includes the first data and the second data, the first channel and the second channel have no intersection, and a sum of a bandwidth of the first channel and a bandwidth of the second channel is less than or equal to a bandwidth supported by the AP, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit is further configured to send a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or transmitting a second response frame to the AP on a second channel, the second response frame being used to inform the AP that the STA has received the second data.

In the above device, when the bandwidth capability supported by the AP is greater than the bandwidth capability supported by the STA of the station, in the downlink direction, the AP may allocate subcarriers for receiving data to the STA by modifying the preamble, that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarriers allocated by the AP to the first group of STAs by identifying the first preamble and obtains the first data according to the subcarriers, and the second group of STAs obtains the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtains the second data according to the subcarriers, so that resources of the first channel and the second channel can be fully utilized, waste caused by using only one channel is avoided, occurrence of a situation of overall air interface rate is reduced, data is simultaneously received and received on the first channel and the second channel, interference caused by asynchronous data receiving and transmitting a response frame to the AP is timely notified that the STA has received the data, continuous waiting of the AP is avoided, and resources waste caused by the AP can be fully utilized by the first channel and the second channel of the STA.

In yet another alternative, the communication unit is further configured to receive a first notification message sent by the AP when a difference between a traffic flow of the first channel and a traffic flow of the second channel is greater than a first threshold, where the first notification message is used to instruct a part of STAs in the first group of STAs to switch from the first channel to the second channel; or (b)

The communication unit is further configured to receive a second notification message sent by the AP when a difference between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, where the second notification message is used to instruct a part of STAs in the second group of STAs to switch from the second channel to the first channel.

In the device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel, in this way, the condition that the load on one channel is very heavy and the load on the other channel is very light can be avoided, the traffic condition on the channel can be comprehensively considered, and the resources can be reasonably utilized.

In yet another alternative, the communication unit is configured to receive, on the first channel, a first management frame sent by the AP, where the first management frame is used by the first group of STAs to determine a connection state with the AP;

the communication unit is further configured to receive, on the second channel, a second management frame sent by the AP, where the second management frame is used by the second group of STAs to determine a connection state with the AP.

In the above device, the AP transmits the first management frame on the first channel and transmits the second management frame on the second channel, so that the STA can know that there is an AP nearby by monitoring the management frame on the channel, and can maintain connection with the AP, and perform data communication rapidly.

In yet another alternative, the communication unit is further configured to receive a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP; the first trigger frame comprises a first duration, wherein the first duration is the time when the third data is transmitted on the first channel;

The communication unit is further configured to send the third data to the AP;

the communication unit is further configured to receive a third response frame of the AP, where the third response frame is used to notify the STA that the AP has received the third data; or (b)

The communication unit is further configured to receive a second trigger frame sent by the AP on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to send frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is a time for the fourth data to be transmitted on the second channel, where the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel;

the communication unit is further configured to send the fourth data to the AP;

the communication unit is further configured to receive a fourth response frame of the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

In the device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP informs the STA of the sub-carrier when transmitting data information to the AP by transmitting a trigger frame to the STA, and can fully utilize the first channel and the second channel resources by a multi-channel processing manner, thereby improving the overall air rate, avoiding resource waste caused by using only the resources of one of the channels when the bandwidth capability of the AP and the STA are inconsistent and only negotiating according to the low bandwidth capability, and avoiding interference caused by the same transmission time of the trigger frame indication data on the first channel and the second channel, ensuring data quality, and timely notifying the STA of the received data by transmitting a response frame to the STA by the AP, and avoiding resource waste caused by continuous waiting of the STA.

A fifth aspect of the embodiments of the present application discloses a multi-channel processing apparatus, the multi-channel processing apparatus including a processor, a memory, and a transceiver, the memory being configured to store a computer program, the processor invoking the computer program to perform operations comprising:

generating a first message, where the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, the first bandwidth information is configured according to a bandwidth of a first channel occupied by a first group of STAs, the second preamble includes second bandwidth information, the second bandwidth information is configured according to a bandwidth of a second channel occupied by a second group of STAs, the first channel and the second channel have no intersection, and a sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to a bandwidth supported by the AP;

transmitting, by a transceiver, the first packet to the first group of STAs and the second group of STAs, the first packet including first data and second data, the first packet being for instructing the first group of STAs to receive the first data using the first bandwidth information, and the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs including at least one STA, the second group of STAs including at least one STA;

A first response frame from the first group of STAs and a second response frame from the second group of STAs are received by the transceiver, the first response frame being used to inform the AP that the first group of STAs has received the first data, the second response frame being used to inform the AP that the second group of STAs has received the second data.

In yet another alternative, the processor is further configured to: determining the traffic of the first channel and the traffic of the second channel;

when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, sending, by a transceiver, a first notification message to a part of STAs in the first group of STAs, the first notification message being used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; and when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is larger than a first threshold value, sending a second notification message to a part of the STAs in the second group of STAs through a transceiver, wherein the second notification message is used for indicating that the part of the STAs in the second group of STAs are switched from the second channel to the first channel to become the first group of STAs.

In yet another alternative, the processor is further configured to: transmitting, by a transceiver, a first management frame on the first channel, the first management frame for the first group of STAs to determine a connection status with the AP;

and transmitting, by the transceiver, a second management frame on the second channel, the second management frame for the second group of STAs to determine a connection status with the AP.

In yet another alternative, the processor is further configured to: transmitting, by a transceiver, a first trigger frame to the first group of STAs on the first channel, the first trigger frame including the first spectrum allocation information, the first spectrum allocation information being used to instruct the first group of STAs to transmit frequency domain resources of third data to the AP, the first trigger frame including a first duration, the first duration being a time when the third data is transmitted on the first channel;

Receiving, by the transceiver, third data transmitted by the first set of STAs on the first channel;

transmitting, by the transceiver, a third response frame to the first group of STAs on the first channel, the third response frame for informing the first group of STAs that the AP has received the third data;

transmitting, by a transceiver, a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to transmit frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is a time for transmitting the fourth data on the second channel, where the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel;

receiving, by the transceiver, fourth data transmitted by the second group of STAs on the second channel;

transmitting, by the transceiver, a fourth response frame to the second group of STAs on the second channel, the fourth response frame for informing the second group of STAs that the AP has received the fourth data.

In yet another alternative, the processor is configured to: and transmitting, by a transceiver, the first preamble and the first data to the first group of STAs on the first channel and the second preamble and the second data to the second group of STAs on the second channel at the same time, wherein a transmission time of the first preamble and the first data on the first channel is the same as a transmission time of the second preamble and the second data on the second channel.

A sixth aspect of the embodiments of the present application discloses a multi-channel processing apparatus, the multi-channel processing apparatus including a processor, a memory, and a transceiver, the memory being configured to store a computer program, the processor invoking the computer program to perform operations comprising:

receiving a first message sent by an Access Point (AP), wherein the first message comprises a first preamble and a second preamble;

identifying a first preamble in the first message or a second preamble in the first message, wherein the first preamble comprises first bandwidth information configured according to a bandwidth of a first channel occupied by a first group of station STAs, and the second preamble comprises second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of station STAs;

receiving first data according to the first bandwidth information or receiving second data according to the second bandwidth information, wherein the first message comprises the first data and the second data, the first channel and the second channel have no intersection, the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, the station STA is a first group of station STA or a second group of station STA, the first group of STA comprises at least one STA, and the second group of STA comprises at least one STA;

Transmitting a first response frame to the AP on a first channel, the first response frame for informing the AP that the STA has received the first data; or transmitting a second response frame to the AP on a second channel, the second response frame being used to inform the AP that the STA has received the second data.

In yet another alternative, the processor is further configured to: when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold value, receiving, by the transceiver, a first notification message sent by the AP, where the first notification message is used to instruct a part of STAs in the STAs to switch from the first channel to the second channel; or (b)

And when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is larger than a first threshold value, receiving a second notification message sent by the AP through the transceiver, wherein the second notification message is used for indicating a part of the STAs to switch from the second channel to the first channel.

In yet another alternative, the processor is further configured to: receiving, by the transceiver, a first management frame on the first channel from the AP, the first management frame being used by the first group of STAs to determine a connection status with the AP;

and receiving, by the transceiver, a second management frame from the AP on the second channel, the second management frame being used by the second group of STAs to determine a connection status with the AP.

In yet another alternative, the processor is further configured to: receiving, by the transceiver, a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information, where the first spectrum allocation information is used to instruct the STA to send a frequency domain resource of third data to the AP, and the first trigger frame includes a first duration, where the first duration is a time when the third data is transmitted on the first channel;

The STA sends the third data to the AP;

Receiving, by the transceiver, a second trigger frame sent by the AP on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the STA to send a frequency domain resource of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time for the fourth data to be transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel;

the STA sends the fourth data to the AP;

In the device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP informs the STA of the sub-carrier when transmitting data information to the AP by transmitting a trigger frame to the STA, and can fully utilize the resources of the first channel and the second channel by a multi-channel processing manner, so as to avoid the situation that the AP and the STA do not support the bandwidth capability, only use one channel according to the negotiation of the lower bandwidth capability, thereby causing waste, reducing the occurrence of the situation of the overall air interface rate, transmitting and receiving data on the first channel and the second channel simultaneously, avoiding the interference caused by the asynchronous data transmission and receiving, and avoiding the interference caused by the same transmission time of the trigger frame indication data on the first channel and the second channel, ensuring the data quality, and informing the STA in time by transmitting a response frame to the STA by the AP, so as to avoid the continuous waiting of the STA to cause the resource waste.

A seventh aspect of the embodiments of the present application discloses a chip, where the chip includes at least one processor and an interface circuit, and optionally, the chip further includes a memory, where the memory, the interface circuit, and the at least one processor are interconnected by a line, and where the at least one memory stores a computer program; the computer program when executed by the processor implements the method described in any one of the first aspect and the second aspect or an alternative to any one of the aspects.

An eighth aspect of the embodiments of the present application discloses a computer-readable storage medium storing a computer program that, when executed by a processor, implements a method described by the alternative of any one or any one of the first aspect and the second aspect.

Drawings

The drawings used in the embodiments of the present application are described below.

Fig. 1 is a schematic system architecture of a multi-channel processing according to an embodiment of the present application;

fig. 2 is a schematic diagram of a 20MHz bandwidth resource block distribution provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a distribution of 40MHz bandwidth resource blocks according to an embodiment of the present application;

Fig. 4 is a schematic diagram of an 80MHz bandwidth resource block distribution provided in an embodiment of the present application;

fig. 5 is a schematic diagram of bandwidth occupation situation when an AP communicates with an STA according to an embodiment of the present application;

FIG. 6 is a diagram illustrating a message format according to an embodiment of the present application;

fig. 7 is a schematic diagram of bandwidth occupation situation when an AP communicates with an STA according to an embodiment of the present application;

fig. 8 is a flow chart of a multi-channel processing method according to an embodiment of the present application;

fig. 9 is a schematic diagram of a format of a preamble in a first packet according to an embodiment of the present application;

fig. 10 is a schematic diagram of a format of a preamble in a first packet according to another embodiment of the present application;

fig. 11 is a schematic diagram of an AP sending a first message to a first group of STAs and a second group of STAs according to an embodiment of the present application;

fig. 12 is a schematic diagram of a conventional STA online manner according to an embodiment of the present application;

fig. 13 is a schematic diagram of STA on a first channel according to an embodiment of the present application;

fig. 14 is a schematic diagram of a STA on a first channel and a second channel according to an embodiment of the present application;

fig. 15 is a schematic diagram of channel switching provided in an embodiment of the present application;

fig. 16 is a schematic diagram of a trigger frame format according to an embodiment of the present application;

Fig. 17 is a schematic diagram of data transmission/reception asynchronous interference generation provided in an embodiment of the present application;

fig. 18 is a schematic diagram of data transceiving synchronization according to an embodiment of the present application;

FIG. 19 is a schematic diagram of a data transceiver asynchronous generation cancellation signal according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a multi-channel processing device according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a multi-channel processing device according to an embodiment of the present application;

fig. 22 is a schematic structural diagram of a multi-channel processing device according to an embodiment of the present application;

fig. 23 is a schematic structural diagram of a multi-channel processing device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.

Referring to fig. 1, fig. 1 is a schematic diagram of a system architecture of a multi-channel processing system according to an embodiment of the present application, where the system includes at least one Access Point (AP) 101 and at least one Station (STA) 102. The AP is a network element that serves a station, for example, the AP is an AP that can support the 802.11 family of protocols, and the AP is a device that supports 160 megahertz (MHz) bandwidth capabilities. For example, the STA may be a station supporting the 802.11.Ax protocol, and the STA may be a device supporting the 80M bandwidth capability.

As shown in fig. 1, the method provided in the embodiment of the present application may be applied to the system of multi-channel processing shown in fig. 1. In the communication system, 1 access point AP can perform data transmission with a plurality of STAs. For example, the AP in fig. 1 may perform transmission of uplink data or downlink data with two STAs.

With the continuous development of internet technology, the requirements of people on the internet are also higher and higher, and in order to meet the requirements, the wireless internet WiFi technology is gradually evolved to support higher and higher speed. The WiFi rate is mainly affected by the working bandwidth, the modulation mode, the number of multiple-input multiple-output (multiple in multiple out, MIMO), the number of MIMO, the working bandwidth, the modulation mode depend on the capabilities of both the AP and the STA, if one party does not support the same, only negotiation can be performed according to a lower capability, in WiFi6, many APs already support 160M bandwidth, but many STAs still do not support 160M bandwidth.

After WiFi6, the AP may support orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDMA) techniques, and may transmit and receive data to and from multiple STAs simultaneously, each STA using a different subcarrier. OFDMA techniques divide the transmission bandwidth into orthogonal sets of subcarriers that do not overlap with each other, and allocate different sets of subcarriers to different users to achieve multiple access. The technology can dynamically allocate the available bandwidth resources to the needed users, and can easily realize the optimal utilization of the system resources.

Following WiFi6, a concept of Resource Unit (RU) was introduced, and in WiFi6, the size of the RU has various sizes, including 26 subcarrier-sized resource blocks, 52 subcarrier-sized resource blocks, 106 subcarrier-sized resource blocks, 242 subcarrier-sized resource blocks, 484 subcarrier-sized resource blocks, and 996 subcarrier-sized resource blocks.

The size of the 20MHz bandwidth resource block is defined as 26, 52, 106, 242. As shown in fig. 2, fig. 2 shows a schematic diagram of 20MHz bandwidth resource block distribution. The middle 26-size resource blocks span the direct current sub-carrier, the direct current sub-carrier is a small slot in the middle of the figure, the first layer is the position distribution of 9 26-size resource blocks, the second layer is the position distribution of 4 52 and 1 26-size resource blocks, the third layer is the position distribution of 2 106 and 1 26-size resource blocks, and the fourth layer is the position distribution of 1 242-size resource blocks. The 20MHZ spectrum block map may be a 242 subcarrier size spectrum combined for any resource block in the 4 layers. When the AP is scheduled, only one resource block can be allocated to each user, but a plurality of users can be allocated to the same resource block.

The size of the 40MHz bandwidth resource block is defined as 26, 52, 106, 242, 484. As shown in fig. 3, fig. 3 shows a schematic diagram of 40MHz bandwidth resource block distribution. The middle small slot is a direct current subcarrier. The first layer is the position distribution of 18 resource blocks with the size of 26, the second layer is the position distribution of 8 resource blocks with the size of 52 and 2 resource blocks with the size of 26, the third layer is the position distribution of 4 resource blocks with the size of 106 and 2 resource blocks with the size of 26, the fourth layer is the position distribution of 2 resource blocks with the size of 242, the resource blocks with the size of 242 are 20M bandwidths, the fifth layer is the position distribution of 1 resource block with the size of 484, and the resource blocks with the size of 484 are 40M bandwidths. The 40MHz spectrum block map may be a 484 subcarrier size spectrum for any of the resource blocks in the 5 layers, with each user being able to allocate only one of the resource blocks.

The resource blocks of 80MHz bandwidth are defined as 26, 52, 106, 242, 484 and 996. As shown in fig. 4, fig. 4 shows a schematic diagram of an 80MHz bandwidth resource block distribution. The 80MHz bandwidth block diagram is divided into 6 layers, the middle 26-sized resource blocks span the direct current sub-carrier, and the middle small slot is the direct current sub-carrier. The first layer is the position distribution of 37 resource blocks with the size of 26, the second layer is the position distribution of 16 resource blocks with the size of 52 and 5 resource blocks with the size of 26, the third layer is the position distribution of 8 resource blocks with the size of 106 and 5 resource blocks with the size of 26, the fourth layer is the position distribution of 4 resource blocks with the size of 242 and 1 resource block with the size of 26, the 242 resource blocks are 20M bandwidths, the fifth layer is the position distribution of 2 resource blocks with the size of 484 and 1 resource block with the size of 26, the 484 resource blocks are 40M bandwidths, the sixth layer is the position distribution of 1 resource block with the size of 996, and the 996 resource blocks are 80M bandwidths. The 80MHz spectrum block diagram may be a 996 subcarrier size spectrum of any of the resource blocks in the 6 layers, with each user being able to allocate only one of the resource blocks.

As shown in fig. 5, fig. 5 is a schematic diagram illustrating a bandwidth occupation situation when an AP communicates with an STA. If the AP supports 160MHz bandwidth, STA1 supports 160M bandwidth, STA2 supports 80M bandwidth, in the downlink direction, when the AP supporting 160M bandwidth capability transmits a message to the STA supporting 80M bandwidth capability, the message format is shown in fig. 6, and the preamble includes a preamble and data, where the preamble includes an efficient signaling field a (SIGA) and a conventional signaling field B (SIGB), and according to the WiFi6 standard, the SIGB of the odd number sub-channels is the same, and the SIGB of the even number sub-channels is the same, that is, when the AP communicates with the STA2 supporting only 80M bandwidth, the AP can only receive and transmit data according to 80M bandwidth, thereby causing waste of the remaining 80M bandwidth.

To avoid the above, fig. 7 is a schematic diagram showing the bandwidth occupation situation when the AP communicates with the STA, as shown in fig. 7. If the AP supports 160M bandwidth, STA1 supports 160M bandwidth, STA2 supports 80M bandwidth, and according to WiFi6 standard, when allocating bandwidth resources, the AP allocates 80M bandwidth to STA1 supporting 160M bandwidth for receiving and transmitting data, and allocates 80M bandwidth to STA2 supporting 80M bandwidth for receiving and transmitting data, but when traffic of STA1 supporting 160M bandwidth is less, traffic of STA2 supporting 80M bandwidth is larger, waste still exists. In order to solve the technical problems described above, the embodiments of the present application provide the following solutions.

Referring to fig. 8, fig. 8 is a flowchart of a multi-channel processing method according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:

step S801: the access point AP generates a first message.

Specifically, the first message includes a first preamble and a second preamble, where the first preamble includes first bandwidth information and first spectrum allocation information, the first bandwidth information is configured according to a bandwidth of a first channel occupied by a first group of STAs, and the first spectrum allocation information is used to instruct the first group of STAs to receive frequency domain resources of first data; the second preamble includes second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of STAs, and second spectrum allocation information for indicating frequency domain resources of the second group of STAs to receive the second data. The first channel and the second channel have no intersection, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is smaller than or equal to the bandwidth supported by the AP.

For example, if the access point AP supports 160M bandwidth capability, the first set of STAs is a device supporting 80M bandwidth capability, and the second set of STAs is a device supporting 80M bandwidth capability, the format of the preamble in the first message is shown in fig. 9. The first message comprises a first preamble and a second preamble, the first preamble comprises first bandwidth information and first spectrum allocation information, the first bandwidth information is a high-efficiency signaling field A (SIGA), the SIGA is 80M, and the first spectrum allocation information is allocation information of 1, 2, 3 and 4 sub-channels; the second preamble includes second bandwidth information, which is a high efficiency signaling field a (SIGA), which is 80M, and second spectrum allocation information, which is allocation information of 5, 6, 7, 8 subchannels.

For example, if the access point AP is a device supporting 320M bandwidth capability, the first group of STAs is a device supporting 160M bandwidth capability, the second group of STAs is a device supporting 80M bandwidth capability, and the third group of STAs is a device supporting 80M bandwidth capability, the format of the preamble in the first message is as shown in fig. 10. The first message comprises a first preamble, a second preamble and a third preamble, wherein the first preamble comprises first bandwidth information and first spectrum allocation information, the first bandwidth information is high-efficiency signaling field A (SIGA), the SIGA is 160M, and the first spectrum allocation information is allocation information of 1, 2, 3, 4, 5, 6, 7 and 8 sub-channels; the second preamble includes second bandwidth information, which is a high efficiency signaling field a (SIGA), which is 80M, and second spectrum allocation information, which is allocation information of 9, 10, 11, 12 sub-channels. The third preamble includes third bandwidth information, which is a high efficiency signaling field a (SIGA), which is 80M, and third spectrum allocation information, which is allocation information of 13, 14, 15, 16 subchannels.

Step S802: the AP sends a first message to the first set of STAs and the second set of STAs.

Specifically, the first packet includes first data and second data, the first preamble is used for indicating the first group of STAs to receive the first data using the first bandwidth information, and the second preamble is used for indicating the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA.

Specifically, in downlink multi-user transmission, an AP performs centralized scheduling by using an OFDMA or multi-user multiple-input multiple-output (MU-MIMO) manner, and the AP sends a first message to a first group of STAs and a second group of STAs simultaneously.

Specifically, after receiving the first message, the first group of STAs identify a first preamble in the first message, and obtain a resource block allocated to the first group of STAs by the AP according to first spectrum allocation information in the first preamble, where the first group of STAs receives first data sent by the AP to the first group of STAs; after receiving the first message, the second group of STAs identifies a second preamble in the first message, and obtains a resource block allocated to the second group of STAs by the AP according to second spectrum allocation information in the second preamble, and the second group of STAs receives second data sent by the AP to the second group of STAs in the resource block.

For example, as shown in fig. 11, fig. 11 shows that the AP transmits a first message to the first group of STAs and the second group of STAs. If the AP is a device supporting 160M bandwidth capability, the first group of STAs includes STA1 and STA2, both STA1 and STA2 are devices supporting 80M bandwidth capability, the second group of STAs includes STA3 and STA4, both STA3 and STA4 are devices supporting 80M bandwidth capability, STA1 and STA2 are on a first channel, STA3 and STA4 are on a second channel, when STA1 receives a first message on the first channel, STA1 identifies a first preamble in the first message, acquires a subcarrier allocated by the AP to STA1 according to first spectrum allocation information in the first preamble, STA1 acquires data transmitted by the AP to STA1 on the corresponding subcarrier, when STA2 receives the first message on the first channel, STA2 identifies the first preamble in the first message, acquires a subcarrier allocated by the AP to STA2 according to first spectrum allocation information in the first preamble, and STA2 acquires data transmitted by the AP to STA2 on the corresponding subcarrier; when the STA3 receives the first message on the second channel, the STA3 identifies the second preamble in the first message, obtains the sub-carrier allocated by the AP to the STA3 according to the second spectrum allocation information in the second preamble, the STA3 obtains the data sent by the AP to the STA3 on the corresponding sub-carrier, when the STA4 receives the first message on the first channel, the STA4 identifies the second preamble in the first message, obtains the sub-carrier allocated by the AP to the STA4 according to the second spectrum allocation information in the second preamble, and the STA4 obtains the data sent by the AP to the STA2 on the corresponding sub-carrier. Wherein, STA1 and STA2 share the resource block of the bandwidth of 80M, specifically how many of the resource blocks of 80M are occupied by STA1 and STA2 respectively are determined by AP scheduling, STA3 and STA4 share the resource block of the bandwidth of 80M, specifically how many of the resource blocks of 80M are occupied by STA3 and STA4 respectively are determined by AP scheduling.

In this embodiment of the present application, before the AP sends a first message to the first group of STAs and the second group of STAs, the AP and the STAs establish a communication connection as follows: as shown in fig. 12, the conventional STA is on-line. If the AP is a device supporting 160M bandwidth, STA1, STA2, and STA3 are all devices supporting 80M bandwidth, the 160M channel is divided into a master 80M and a slave 80M. In the traditional mode, an AP sends a beacon frame at a main 20M in a main 80M, an STA1 and an STA2 monitor the beacon frame, and an authentication request is sent at the main 20M, the AP replies authentication response of the STA1 and the STA2, and then the AP establishes connection with the STA1 and the STA 2; although the AP also transmits a beacon frame from the slave 20M of the slave 80M and the STA3 listens to the beacon frame, when the STA3 transmits an authentication request, the AP cannot receive the authentication request because the AP is not from the slave 20M of the slave 80M, and therefore the STA3 cannot be brought on line from the slave 80M and can only be brought on line from the master 80M first. If, as shown in fig. 13, the STA is on-line on the first channel. There are 4 STAs supporting 80M bandwidth, namely STA1, STA2, STA3, STA4, which are all on the primary 80M, i.e. both on the first channel, the AP sends a notification message to STA3 and STA4 informing STA3 and STA4 to switch to the secondary 80M, i.e. the second channel, where the AP waits on the primary 20M of the secondary 80M, sends a beacon frame on the primary 20M of the secondary 80M, STA3 and STA4 overhears the beacon frame, sends an authentication request to the AP, the AP receives the authentication request, so STA3 and STA4 establish a connection with the AP on the secondary 80M, as shown in fig. 14, STA is on the first channel and the second channel, STA3 and STA4 are on the secondary 80M. Then STA1 and STA2 are in the master 80M, i.e., the first channel, and STA3 and STA4 are in the slave 80M, i.e., the second channel. The AP may communicate with STA1, STA2, STA3, STA 4.

In the embodiment of the application, before the AP sends a first message to the first group of STAs and the second group of STAs, the AP sends a first management frame on a first channel, where the first management frame is used for the first group of STAs to determine a connection state with the AP; the AP transmits a second management frame on a second channel, the second management frame for the second group of STAs to determine a connection status with the AP.

Specifically, after the AP establishes communication connection with the first group of STAs and the second group of STAs, i.e., after the first group of STAs and the second group of STAs are on line, in order to keep the first group of STAs and the second group of STAs continuously connected with the AP, the AP transmits a first management frame on a first channel, transmits a second management frame on a second channel, where the first management frame and the second management frame may be beacon frames, and the AP periodically broadcasts and transmits the beacon frames.

For example, if the default period of the beacon frame sent by the AP is 100ms, the AP will broadcast the beacon frame on the first channel and the second channel every 100ms, the first group of STAs continuously monitor the beacon frame on the first channel supported by the first group of STAs to learn about the AP, and the second group of STAs continuously monitor the beacon frame on the second channel supported by the second group of STAs to learn about the AP.

In step S803, the AP receives a first response frame from the first group of STAs and a second response frame from the second group of STAs.

Specifically, the first response frame is used to inform the AP that the first group of STAs has received the first data, and the second response frame is used to inform the AP that the second group of STAs has received the second data.

Optionally, the embodiment of the application further includes the following steps:

step S804: the AP determines traffic for the first channel and traffic for the second channel.

Specifically, the traffic flow of the first channel is the traffic flow of the AP communicating with the first group of STAs, and the traffic flow of the second channel is the traffic flow of the AP communicating with the second group of STAs.

For example, if the first group of STAs is on the first channel, the second group of STAs is on the second channel, the first group of STAs performs video streaming with the AP at Zhong Zhina, the traffic flow value of the first channel is 100 mega, the second group of STAs performs instant messaging with the AP, the traffic flow value of the second channel is 20 mega, and if the first threshold is 50 mega, the AP determines that the difference between the traffic flow of the first channel and the traffic flow of the second channel is 70 mega or more than the first threshold of 50 mega.

Specifically, the AP may notify the STA to perform channel switching according to the traffic flow of the first channel and the traffic flow of the second channel, and may also notify the STA to perform channel switching according to the importance of the STA, or may notify the STA to perform channel switching according to the bandwidth capability of the STA.

Specifically, the AP may also estimate the traffic condition of the STA before the STA and the AP establish communication connection, that is, before the STA is on line, and notify the STA to perform channel switching according to the traffic condition of the STA.

Step S805: the AP determines whether the difference between the traffic of the first channel and the traffic of the second channel is greater than a first threshold.

Specifically, if the difference between the traffic of the first channel and the traffic of the second channel is greater than the first threshold, step S806 is performed, and if the difference between the traffic of the first channel and the traffic of the second channel is not greater than the first threshold, step S807 is performed.

For example, if the AP determines that the traffic flow value of the first channel is 100 mega and the traffic flow value of the second channel is 20 mega, if the first threshold is 50 mega, the AP determines that the difference between the traffic flow of the first channel and the traffic flow of the second channel is 70 mega is greater than the first threshold by 50 mega, and step S806 is performed.

Step S806: the AP transmits a first notification message to a portion of the STAs in the first group of STAs.

Specifically, the first notification message is used to instruct a portion of STAs in the first group of STAs to switch from the first channel to the second channel.

For example, as shown in fig. 15, fig. 15 shows a schematic diagram of channel switching. The first group of STAs includes STA1, STA3, and STA4, and all of the STA1, STA3, and STA4 are on the first channel, and since the traffic of the first channel is greater than the traffic of the second channel, the AP sends a first notification message to STA1 or STA2 or STA4, notifying STA1 or STA2 or STA4 to switch from the first channel to the second channel.

Step S807: the AP transmits a second notification message to a portion of the STAs in the second group of STAs.

Specifically, the second notification message is used to instruct a portion of STAs in the second group of STAs to switch from the second channel to the first channel.

The above-described embodiments illustrate how the AP fully utilizes the bandwidth to transmit data to the STA in the downlink direction, and next describe how the AP fully utilizes the bandwidth to receive data transmitted by the STA in the uplink direction.

The method comprises the steps that an AP sends a first trigger frame to a first group of STA on a first channel, the first trigger frame comprises first spectrum allocation information, the first spectrum allocation information is used for indicating the first group of STA to send frequency domain resources of third data to the AP, the first trigger frame comprises first duration, and the first duration is the time of transmission of the third data on the first channel;

the AP receives third data sent by a first group of STA on a first channel;

the AP sends a third response frame to the first group of STAs on the first channel, wherein the third response frame is used for informing the STAAP that third data is received;

the AP sends a second trigger frame to a second group of STA on a second channel, wherein the second trigger frame comprises second spectrum allocation information, the second spectrum allocation information is used for indicating the second group of STA to send frequency domain resources of fourth data to the AP, the second trigger frame comprises second duration, and the second duration is the time for transmitting the fourth data on the second channel, and the first trigger frame and the second trigger frame are used for indicating the transmission time of third data on the first channel and the transmission time of the fourth data on the second channel to be the same;

the AP transmits a fourth response frame to the second set of STAs on the second channel, the fourth response frame being used to inform the STAs that the AP has received the fourth data.

Specifically, for uplink multi-user transmission, after adopting an AP centralized resource scheduling mode, the AP needs to send a trigger frame to the STA, and transmit resource indication information of uplink transmission, so that multi-user simultaneous transmission can be performed. The format of the trigger frame is shown in fig. 16, and the trigger frame mainly includes two pieces of information: the common information field is used for indicating the trigger frame type and trigger information common to some STAs, and the user information field is used for respectively indicating the resource indication information of each STA.

Specifically, after the first group of STAs receives the first trigger frame on the first channel, identifying the first spectrum allocation information on the first trigger frame, that is, obtaining a resource block allocated by the AP to the first group of STAs, where the first group of STAs sends third data to the AP, correspondingly, the AP receives the third data sent by the first group of STAs on the first channel, and the AP sends a third response frame to the first group of STAs on the first channel, notifying the first group of STAs that the AP has received the third data; after receiving the second trigger frame on the second channel, the second group of STAs identify second spectrum allocation information on the second trigger frame, that is, obtain a resource block allocated by the AP to the second group of STAs, where the second group of STAs send fourth data to the AP, and correspondingly, the AP receives third data sent by the second group of STAs on the second channel, and the AP sends a fourth response frame to the second group of STAs on the second channel, notifying the second group of STAs that the AP has received the fourth data, where the start time of the first group of STAs sending the third data to the AP and the start time of the second group of STAs sending the fourth data to the AP are the same, and the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel are the same.

The above embodiment describes the case where the first channel and the second channel are synchronized in the transmission and reception of messages, and the following describes the case where the first channel and the second channel are not synchronized in the transmission and reception of messages.

As shown in fig. 17, fig. 17 is a schematic diagram showing a case where data transmission and reception are not synchronized. In order to solve the above problem, the present application proposes that data is transmitted and received synchronously on the second channel of the first channel, as shown in fig. 18, fig. 18 shows that the first channel and the second channel transmit and receive data simultaneously. In addition to the above solutions, the present application proposes the following solutions.

The AP receives fifth data sent by the second group of STAs on the second channel when sending a second message to the first group of STAs on the first channel at the first moment, and generates a first offset signal when sending the second message to the first group of STAs on the first channel at the first moment; the first cancellation signal is configured to cancel an interference signal generated by the AP when the AP receives fifth data from the second group of STAs on the second channel when the AP transmits the second message to the first group of STAs on the first channel, as shown in fig. 19; or (b)

The AP receives sixth data sent by the first group of STAs on the first channel when sending a second message to the second group of STAs on the second channel at the second moment, and generates a second offset signal when sending the second message to the second group of STAs on the second channel at the second moment; the second cancellation signal is configured to cancel an interference signal generated by the AP when the AP receives the sixth data from the first group of STAs on the first channel when the second channel transmits the second message to the second group of STAs.

In the method described in fig. 8, when the bandwidth capability supported by the AP is greater than the bandwidth capability supported by the STA at the station, in the downlink direction, the AP may allocate subcarriers for receiving data to the STA by modifying the preamble, that is, the first packet includes the first preamble and the second preamble, the first group of STAs obtains the subcarriers allocated to the first group of STAs by identifying the first preamble and obtains the first data according to the subcarriers, and the second group of STAs obtains the subcarriers allocated to the second group of STAs by identifying the second preamble and obtains the second data according to the subcarriers, so that resources of the first channel and the second channel can be fully utilized by a multi-channel processing manner, so that only one channel can be negotiated according to the lower bandwidth capability, thereby causing waste, the situation of overall air interface rate is reduced, the situation that data is simultaneously received and transmitted and received on the first channel and the second channel is not synchronous, and the AP is prevented from causing interference by sending and waiting for the frame in time, and the situation that the AP is waiting for receiving the data is continuously waiting for receiving the frame is avoided.

The foregoing details the method of embodiments of the present application, and the apparatus of embodiments of the present application is provided below.

Referring to fig. 20, fig. 20 is a schematic structural diagram of a multi-channel processing device provided in an embodiment of the present application, where the multi-channel processing device 2000 may include a processing unit 2001 and a communication unit 2002, where detailed descriptions of the respective units are as follows.

A processing unit 2001, configured to generate a first packet, where the first packet includes a first preamble and a second preamble, the first preamble includes first bandwidth information, the first bandwidth information is configured according to a bandwidth of a first channel occupied by a first group of STAs, the second preamble includes second bandwidth information, the second bandwidth information is configured according to a bandwidth of a second channel occupied by a second group of STAs, the first channel and the second channel have no intersection, and a sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to a bandwidth supported by the AP;

a communication unit 2002, configured to send the first packet to the first group of STAs and the second group of STAs, where the first packet includes first data and second data, the first preamble is used to instruct the first group of STAs to receive the first data using the first bandwidth information, and the second preamble is used to instruct the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit 2002 is further configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, where the first response frame is used to notify the AP that the first group of STAs has received the first data, and the second response frame is used to notify the AP that the second group of STAs has received the second data.

In yet another alternative, the processing unit 2001 is further configured to determine a traffic volume of the first channel and a traffic volume of the second channel; the communication unit 2002 is further configured to send a first notification message to a part of STAs in the first group of STAs when a difference between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, where the first notification message is used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become a second group of STAs; the communication unit is further configured to send a second notification message to a part of STAs in the second group of STAs when a difference between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, where the second notification message is used to instruct the part of STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

In yet another alternative, the communication unit 2002 is further configured to send a first management frame on the first channel, where the first management frame is used by the first group of STAs to determine a connection state with the AP; the communication unit 2002 is further configured to send a second management frame on the second channel, where the second management frame is used for the second group of STAs to determine a connection state with the AP.

In yet another alternative, the communication unit 2002 is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP, and the first trigger frame includes a first duration, where the first duration is a time when the third data is transmitted on the first channel; the communication unit 2002 is further configured to receive third data sent by the first group of STAs on the first channel; the communication unit 2002 is further configured to send a third response frame to the first group of STAs on the first channel, where the third response frame is used to notify the first group of STAs that the AP has received the third data;

The communication unit 2002 is further configured to send a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to send frequency domain resources of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel; the communication unit 2002 is further configured to receive fourth data sent by the second group of STAs on the second channel; the communication unit 2002 is further configured to send a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.

In yet another alternative, the communication unit 2002 is further configured to send the first preamble and the first data to the first group of STAs on the first channel and send the second preamble and the second data to the second group of STAs on the second channel at the same time, where a transmission time of the first preamble and the first data on the first channel is the same as a transmission time of the second preamble and the second data on the second channel.

It should be noted that the implementation and beneficial effects of each unit may also correspond to the corresponding description of the method embodiment shown in fig. 8.

Referring to fig. 21, fig. 21 is a schematic structural diagram of a multi-channel processing apparatus provided in an embodiment of the present application, where the multi-channel processing apparatus 2100 may include a communication unit 2101 and a processing unit 2102, where the detailed descriptions of the respective units are as follows.

A communication unit 2101, configured to receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;

a processing unit 2102, configured to identify a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information configured according to a bandwidth of a first channel occupied by a first group of STAs, and the second preamble includes second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of STAs;

the communication unit 2101 is further configured to receive first data according to the first bandwidth information or receive second data according to the second bandwidth information, where the first packet includes the first data and the second data, the first channel and the second channel have no intersection, and a sum of a bandwidth of the first channel and a bandwidth of the second channel is less than or equal to a bandwidth supported by the AP, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit 2101 is further configured to send a first response frame to the AP on a first channel, the first response frame being configured to notify the AP that the STA has received the first data; or the communication unit 2101, is further configured to send a second response frame to the AP on a second channel, where the second response frame is used to notify the AP that the STA has received the second data.

In yet another alternative, the communication unit 2101 is further configured to receive a first notification message sent by the AP when a difference between the traffic of the first channel and the traffic of the second channel is greater than a first threshold, where the first notification message is used to instruct a part of STAs in the first group of STAs to switch from the first channel to the second channel; or (b)

The communication unit 2101 is further configured to receive a second notification message sent by the AP when a difference between the traffic flow of the second channel and the traffic flow of the first channel is greater than a first threshold, where the second notification message is used to instruct a part of STAs in the second group of STAs to switch from the second channel to the first channel.

In yet another alternative, the communication unit 2101 is further configured to receive, on the first channel, a first management frame sent by the AP, where the first management frame is used by the first group of STAs to determine a connection state with the AP;

the communication unit 2101 is further configured to receive, on the second channel, a second management frame sent by the AP, where the second management frame is used by the second group of STAs to determine a connection state with the AP.

In yet another alternative, the communication unit 2101 is further configured to receive, on the first channel, a first trigger frame sent by the AP, where the first trigger frame includes the first spectrum allocation information, the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel; the communication unit 2101 is further configured to send the third data to the AP; the communication unit 2101 is further configured to receive a third response frame of the AP, where the third response frame is used to notify the STA that the AP has received the third data; or (b)

The communication unit 2101 is further configured to receive a second trigger frame sent by the AP on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to send frequency domain resources of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel; the communication unit 2101 is further configured to send the fourth data to the AP; the communication unit 2101 is further configured to receive a fourth response frame of the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

Referring to fig. 22, fig. 22 is a multi-channel processing device 2200 provided in an embodiment of the present application, a processor 2201 and a transceiver 2203, and optionally, the multi-channel processing device 2200 further includes a memory 2202, where the processor 2201, the memory 2202 and the transceiver 2203 are connected to each other through a bus 2204.

Memory 2202 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), and memory 402 for storing computer programs and data. The transceiver 2203 is used to receive and transmit data.

The processor 2201 may be one or more central processing units (central processing unit, CPU), and in the case where the processor 2201 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 2201 in the multi-channel processing apparatus 2200 invokes the computer program stored in the memory 2202 to perform the following operations:

Transmitting, by the transceiver 2203, the first packet to the first group of STAs and the second group of STAs, the first packet including first data and second data, the first preamble being for instructing the first group of STAs to receive the first data using the first bandwidth information, and the second preamble being for instructing the second group of STAs to receive the second data using the second bandwidth information, the first group of STAs including at least one STA, the second group of STAs including at least one STA;

a first response frame from the first group of STAs and a second response frame from the second group of STAs are received by the transceiver 2203, the first response frame being used to inform the first group of STAs that the first data has been received, the second response frame being used to inform the second group of STAs that the second data has been received.

In yet another alternative, the processor 2201 is further configured to: determining the traffic of the first channel and the traffic of the second channel;

In yet another alternative, the processor 2201 is further configured to: transmitting, by a transceiver, a first management frame on the first channel, the first management frame for the first group of STAs to determine a connection status with the AP;

a second management frame is transmitted on the second channel by transceiver 2203 for the second group of STAs to determine a connection status with the AP.

In yet another alternative, the processor 2201 is further configured to: transmitting, by a transceiver 2203, a first trigger frame to the first group of STAs on the first channel, the first trigger frame including the first spectrum allocation information, the first spectrum allocation information being used to instruct the first group of STAs to transmit frequency domain resources of third data to the AP, the first trigger frame including a first duration, the first duration being a time when the third data is transmitted on the first channel; receiving, by transceiver 2203, third data transmitted by the first group of STAs on the first channel; transmitting, by transceiver 2203, a third response frame to the first group of STAs on the first channel, the third response frame being used to inform the first group of STAs that the AP has received the third data;

transmitting, by the transceiver 2203, a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the second group of STAs to transmit frequency domain resources of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel; receiving, by transceiver 2203, fourth data transmitted by the second group of STAs on the second channel; a fourth response frame is transmitted by transceiver 2203 to the second group of STAs on the second channel, the fourth response frame being used to inform the second group of STAs that the AP has received the fourth data.

In yet another alternative, the processor 2201 is configured to: and transmitting, by a transceiver, the first preamble and the first data to the first group of STAs on the first channel and the second preamble and the second data to the second group of STAs on the second channel at the same time, wherein a transmission time of the first preamble and the first data on the first channel is the same as a transmission time of the second preamble and the second data on the second channel.

It should be noted that the implementation and beneficial effects of the respective operations may also correspond to the corresponding description of the method embodiment shown in fig. 8.

Referring to fig. 23, fig. 23 is a multi-channel processing device 2300 provided in an embodiment of the present application, a processor 2301 and a transceiver 2303, and optionally, the multi-channel processing device 2300 further includes a memory 2302, where the processor 2301, the memory 2302 and the transceiver 2303 are connected to each other by a bus 2304.

Memory 2302 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or portable read-only memory (compact disc read-only memory, CD-ROM), and memory 402 is used to store computer programs and data. The transceiver 2303 is used to receive and transmit data.

The processor 2301 may be one or more central processing units (central processing unit, CPU), and in the case where the processor 2301 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 2301 in the multi-channel processing device 2300 invokes a computer program stored in the memory 2302 for performing the following operations:

In yet another alternative, the processor 2301 is further configured to: when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold value, receiving, by the transceiver, a first notification message sent by the AP, where the first notification message is used to instruct a part of STAs in the STAs to switch from the first channel to the second channel; or (b)

In yet another alternative, the processor 2301 is further configured to: receiving, by the transceiver, a first management frame on the first channel from the AP, the first management frame being used by the first group of STAs to determine a connection status with the AP;

the AP transmits a second management frame for the second group of STAs to determine a connection status with the AP by receiving the second management frame on the second channel through the transceiver 2303.

In yet another alternative, the processor 2301 is further configured to: receiving, by the transceiver 2303, a first trigger frame sent by the AP on the first channel, the first trigger frame including the first spectrum allocation information, the first spectrum allocation information being used to instruct the STA to send frequency domain resources of third data to the AP; the first trigger frame comprises a first duration, wherein the first duration is the time when the third data is transmitted on the first channel; transmitting the third data to the AP through the transceiver 2303; receiving, by the transceiver 2303, a third response frame of the AP, the third response frame being used to inform the STA that the AP has received the third data; or (b)

Receiving, by the transceiver 2303, a second trigger frame sent by the AP on the second channel, where the second trigger frame includes the second spectrum allocation information, the second spectrum allocation information is used to instruct the STA to send a frequency domain resource of fourth data to the AP, and the second trigger frame includes a second duration, where the second duration is a time when the fourth data is transmitted on the second channel, and the first trigger frame and the second trigger frame are used to instruct that a transmission time of the third data on the first channel is the same as a transmission time of the fourth data on the second channel; transmitting the fourth data to the AP through the transceiver 2303; a fourth response frame of the AP is received by the transceiver 2303, the fourth response frame being used to inform the STA that the AP has received the fourth data.

The embodiment of the application also provides a chip system, which comprises at least one processor, a memory and an interface circuit, wherein the memory, the transceiver and the at least one processor are interconnected through a circuit, and a computer program is stored in the at least one memory; the method flow shown in fig. 8 is implemented when the computer program is executed by the processor.

Embodiments of the present application also provide a computer-readable storage medium having a computer program stored therein, which when run on a processor, implements the method flow shown in fig. 8.

Embodiments of the present application also provide a computer program product, which when run on a processor, implements the method flow shown in fig. 8.

Those of ordinary skill in the art will appreciate that implementing all or part of the above-described embodiment methods may be accomplished by a computer program in hardware associated with the computer program, which may be stored on a computer readable storage medium, which when executed may comprise the above-described embodiment methods. And the aforementioned storage medium includes: various media capable of storing computer program code, such as ROM or random access memory RAM, magnetic or optical disk.

Claims

1. A method of multi-channel processing, comprising:

the AP receiving a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame being for informing the AP that the first group of STAs has received the first data, the second response frame being for informing the AP that the second group of STAs has received the second data;

the AP determines the traffic flow of the first channel and the traffic flow of the second channel;

when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, the AP sends a first notification message to a part of STAs in the first group of STAs, where the first notification message is used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs;

The AP sends a first management frame on the first channel, wherein the first management frame is used for determining the connection state with the AP by the first group of STA;

2. The method of claim 1, wherein the first preamble comprises first spectrum allocation information indicating frequency domain resources for the first group of STAs to receive the first data, and wherein the second preamble comprises second spectrum allocation information indicating frequency domain resources for the second group of STAs to receive the second data.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, the AP sends a second notification message to a part of STAs in the second group of STAs, where the second notification message is used to instruct the part of STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

4. The method according to claim 2, wherein the method further comprises:

the AP sends a first trigger frame to the first group of STAs on the first channel, wherein the first trigger frame comprises the first spectrum allocation information, the first spectrum allocation information is used for indicating the first group of STAs to send frequency domain resources of third data to the AP, and the first trigger frame comprises a first duration, and the first duration is the time of the third data to be transmitted on the first channel;

the AP receives third data sent by the first group of STA on the first channel;

5. The method of claim 1, wherein the AP transmitting the first message to the first set of STAs and the second set of STAs comprises:

the AP sends the first preamble and the first data to the first group of STAs on the first channel and sends the second preamble and the second data to the second group of STAs on the second channel at the same time, wherein the transmission time of the first preamble and the first data on the first channel is the same as the transmission time of the second preamble and the second data on the second channel.

6. A method of multi-channel processing, comprising:

the STA identifies the first preamble or the second preamble, wherein the first preamble comprises first bandwidth information configured according to the bandwidth of a first channel occupied by a first group of site STAs, and the second preamble comprises second bandwidth information configured according to the bandwidth of a second channel occupied by a second group of STAs;

The STA receives first data according to the first bandwidth information or receives second data according to the second bandwidth information, the first message comprises the first data and the second data, the first channel and the second channel have no intersection, the sum of the bandwidth of the first channel and the bandwidth of the second channel is smaller than or equal to the bandwidth supported by the AP, the STA is a first group of STA or a second group of STA, the first group of STA comprises at least one STA, and the second group of STA comprises at least one STA;

the STA sending a first response frame to the AP on a first channel, the first response frame being for informing the AP that the STA has received the first data; or the STA sends a second response frame to the AP on a second channel, the second response frame being used to notify the AP that the STA has received the second data;

when the difference value between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, a part of STAs in the STAs receive a first notification message sent by the AP, where the first notification message is used to instruct a part of STAs in the STAs to switch from the first channel to the second channel;

The STA receives the AP on the first channel and sends a first management frame, wherein the first management frame is used for the first group of STAs to determine the connection state with the AP;

7. The method of claim 6, wherein the first preamble comprises first spectrum allocation information indicating frequency domain resources for the first group of STAs to receive first data, and wherein the second preamble comprises second spectrum allocation information indicating frequency domain resources for the second group of STAs to receive second data.

8. The method according to claim 6 or 7, characterized in that the method further comprises:

and when the difference value between the traffic flow of the second channel and the traffic flow of the first channel is larger than the first threshold value, part of the STAs receive a second notification message sent by the AP, and the second notification message is used for indicating part of the STAs to switch from the second channel to the first channel.

9. The method of claim 7, wherein the method further comprises:

the STA receives a first trigger frame sent by the AP on the first channel, wherein the first trigger frame comprises first spectrum allocation information, the first spectrum allocation information is used for indicating the STA to send frequency domain resources of third data to the AP, and the first trigger frame comprises a first duration, and the first duration is the time of the third data to be transmitted on the first channel;

the STA sends the third data to the AP;

The STA sends the fourth data to the AP;

10. A multi-channel processing apparatus for an access point AP, comprising:

the processing unit is configured to generate a first packet, where the first packet includes a first preamble and a second preamble, the first preamble includes first bandwidth information, the first bandwidth information is configured according to a bandwidth of a first channel occupied by a first group of STAs, the second preamble includes second bandwidth information, the second bandwidth information is configured according to a bandwidth of a second channel occupied by a second group of STAs, the first channel and the second channel have no intersection, and a sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to a bandwidth supported by the device;

The communication unit is configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, where the first response frame is used to notify the first group of STAs that the first data has been received, and the second response frame is used to notify the second group of STAs that the second data has been received;

the processing unit is further configured to determine a traffic flow of the first channel and a traffic flow of the second channel;

the communication unit is further configured to send a first notification message to a part of STAs in the first group of STAs when a difference between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, where the first notification message is used to instruct the part of STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs;

the communication unit is further configured to send a first management frame on the first channel, where the first management frame is used for the first group of STAs to determine a connection state with the AP;

11. The apparatus of claim 10, wherein the first preamble comprises first spectrum allocation information indicating frequency domain resources for the first group of STAs to receive the first data, and wherein the second preamble comprises second spectrum allocation information indicating frequency domain resources for the second group of STAs to receive the second data.

12. The apparatus according to claim 10 or 11, characterized in that the apparatus further comprises:

the communication unit is further configured to send a second notification message to a part of STAs in the second group of STAs when a difference between the traffic flow of the second channel and the traffic flow of the first channel is greater than the first threshold, where the second notification message is used to instruct the part of STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

13. The apparatus of claim 11, wherein the apparatus further comprises:

the communication unit is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP, and the first trigger frame includes a first duration, where the first duration is a time when the third data is transmitted on the first channel;

the communication unit is further configured to send a third response frame to the first group of STAs on the first channel, where the third response frame is used to notify the STAs that the AP has received the third data;

the communication unit is further configured to send a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the STAs that the AP has received the fourth data.

14. A multi-channel processing apparatus for a station STA, comprising:

a processing unit, configured to identify the first preamble or the second preamble, where the first preamble includes first bandwidth information configured according to a bandwidth of a first channel occupied by a first group of STAs, and the second preamble includes second bandwidth information configured according to a bandwidth of a second channel occupied by a second group of STAs;

the communication unit is further configured to send a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or transmitting a second response frame to the AP on a second channel, the second response frame for informing the AP that the STA has received the second data;

The communication unit is further configured to receive a first notification message sent by the AP when a difference between the traffic flow of the first channel and the traffic flow of the second channel is greater than a first threshold, where the first notification message is used to instruct a part of STAs in the first group of STAs to switch from the first channel to the second channel;

the communication unit is further configured to receive, on the first channel, a first management frame sent by the AP, where the first management frame is used by the first group of STAs to determine a connection state with the AP;

15. The apparatus of claim 14, wherein the first preamble comprises first spectrum allocation information indicating frequency domain resources for the first group of STAs to receive first data, and wherein the second preamble comprises second spectrum allocation information indicating frequency domain resources for the second group of STAs to receive second data.

16. The apparatus according to claim 14 or 15, characterized in that the apparatus further comprises:

17. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

the communication unit is further configured to receive a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of third data to the AP; the first trigger frame comprises a first duration, wherein the first duration is the time when the third data is transmitted on the first channel;

the communication unit is further configured to send the third data to the AP;

The communication unit is further configured to send the fourth data to the AP;