WO2021197325A1 - Procédé de traitement multicanal et dispositif associé - Google Patents

Procédé de traitement multicanal et dispositif associé Download PDF

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Publication number
WO2021197325A1
WO2021197325A1 PCT/CN2021/083967 CN2021083967W WO2021197325A1 WO 2021197325 A1 WO2021197325 A1 WO 2021197325A1 CN 2021083967 W CN2021083967 W CN 2021083967W WO 2021197325 A1 WO2021197325 A1 WO 2021197325A1
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Prior art keywords
channel
stas
group
data
bandwidth
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PCT/CN2021/083967
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English (en)
Chinese (zh)
Inventor
赵望生
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华为技术有限公司
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Publication of WO2021197325A1 publication Critical patent/WO2021197325A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This application relates to the field of communication technology, and in particular to a multi-channel processing method and related equipment.
  • WiFi technology for wireless Internet access is also gradually evolving to support higher and higher speeds.
  • data transmission can only be performed according to the bandwidth capability supported by the site, resulting in waste. Therefore, how to make sufficient channel resources to increase the overall air interface rate is a technical problem being studied by those in the art.
  • the embodiment of the present application discloses a multi-channel processing method and related equipment, which can make full use of channel resources and improve the overall air interface rate.
  • the first aspect of the embodiments of the present application discloses a multi-channel processing method, including:
  • the access point AP generates a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the According to the configuration of the bandwidth of the first channel occupied by the STAs of a group of stations, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the STAs of the second group of stations Configured, 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 less than or equal to the bandwidth supported by the AP;
  • the AP sends the first message to the first group of STAs and the second group of STAs, the first message includes first data and second data, and the first preamble is used to indicate all
  • the first group of STAs uses the first bandwidth information to receive the first data
  • the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data
  • the first group of STAs includes at least one STA
  • the second group of STAs includes 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, and the first response frame is used to notify the AP that the first group of STAs has received the For the first data, the second response frame is used to notify the AP that the second group of STAs has received the second data.
  • the AP can assign the subcarriers for receiving data to the STA by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the resources of the first channel and the second channel can be fully utilized to avoid AP and STA do not support high bandwidth capabilities, so they can only negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time. , To avoid interference caused by asynchronous data transmission and reception, and to notify the AP in time by sending a response frame to the AP by the STA that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data
  • the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.
  • the AP determines the service flow of the first channel and the service flow of the second channel;
  • the AP When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, the AP sends a first notification message to some STAs in the first group of STAs, and A notification message is used to instruct some 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 traffic of the second channel is the same as that of the first channel When the difference between the traffic flows of one channel is greater than the first threshold, the AP sends a second notification message to some STAs in the second group of STAs, and the second notification message is used to indicate the second group Some STAs in the STA switch from the second channel to the first channel to become the first group of STAs.
  • the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In such an extreme situation, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the AP sends a first management frame on the first channel, and the first management frame is used by the first group of STAs to determine the connection status with the AP;
  • the AP sends a second management frame on the second channel, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, which enables the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with it.
  • the AP stays connected, so that data communication can be carried out quickly.
  • 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, and the The first spectrum allocation information is used to indicate the frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first duration is the duration of the third data.
  • the AP sends 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, and the second spectrum allocation information is used to indicate the
  • the second group of STAs sends frequency domain resources of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time for the fourth data to be transmitted on the second channel,
  • the first trigger frame and the second trigger frame are used to indicate 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 sends 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.
  • the AP informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carriers used for information can make full use of the first channel and second channel resources through multi-channel processing, which improves the overall air interface rate and avoids the inconsistency of AP and STA bandwidth capabilities, which can only be performed according to low bandwidth capabilities.
  • the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and communicating to the STA through the AP.
  • the way of sending the response frame informs the STA ⁇ AP that the data has been received in time, so as to avoid the waste of resources caused by the STA's continuous waiting.
  • the AP sends the first preamble and the first data to the first group of STAs on the first channel at the same time and sends the first data on the second channel at the same time.
  • the transmission time of the second preamble and the second data on the second channel is the same.
  • the second aspect of the embodiments of the present application discloses a multi-channel processing method, including:
  • a station STA receives a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;
  • the station STA identifies the first preamble in the first message or the second preamble in the first message, where the first preamble includes first bandwidth information, and the first bandwidth
  • the information is configured according to the bandwidth of the first channel occupied by the STAs of the first group
  • the second preamble includes second bandwidth information
  • the second bandwidth information is configured according to the second bandwidth occupied by the STAs of the second group.
  • the station STA receives first data according to the first bandwidth information, or receives 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 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, and the station STA is the first A group of STAs or a second group of STAs, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;
  • the STA sends a first response frame to the AP on the first channel, where the first response frame is used to notify the AP that the STA has received the first data; or the STA is on the second channel Sending a second response frame to the AP, where the second response frame is used to notify the AP that the STA has received the second data.
  • the AP can assign the subcarriers for receiving data to the STA by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the resources of the first channel and the second channel can be fully utilized to avoid AP and STA do not support high bandwidth capabilities, so they can only negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time. , To avoid interference caused by asynchronous data transmission and reception, and to notify the AP in time by sending a response frame to the AP by the STA that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive first data, and the first The second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data.
  • some STAs in the STA receive the data sent by the AP.
  • a first notification message where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel;
  • some of the STAs When the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, some of the STAs receive the second notification message sent by the AP, and the second notification The message is used to instruct some of the STAs to switch from the second channel to the first channel.
  • the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In light extreme cases, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the STA receives a first management frame sent by the AP on the first channel, and the first management frame is used by the first group of STAs to determine the communication with the AP. Connection Status;
  • the STA receives a second management frame sent by the AP on the second channel, where the second management frame is used by the second group of STAs to determine a connection state with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, which enables the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with it.
  • the AP stays connected and performs data communication quickly.
  • the STA receives a first trigger frame sent by the AP on the first channel, and the first trigger frame includes the first spectrum allocation information, and the first The spectrum allocation information is used to indicate the frequency domain resource for the STA to send the third data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is on the second channel Time of upload;
  • the STA receives 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;
  • the STA receives a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to instruct the STA to
  • the AP sends the frequency domain resource of the fourth data, the second trigger frame includes a second duration, and the second duration is the time for the fourth data to be transmitted on the second channel, wherein the first A trigger frame and the second trigger frame are used to indicate 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 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.
  • the AP informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carriers used for information can make full use of the resources of the first channel and the second channel through multi-channel processing, and send and receive data on the first channel and the second channel at the same time. It can negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the occurrence of the overall air interface rate.
  • the trigger frame indicates that the data transmission time on the first channel and the second channel are the same to avoid interference .
  • the trigger frame indicates that the data transmission time on the first channel and the second channel are the same to avoid interference .
  • the third aspect of the embodiments of the present application discloses a multi-channel processing device, including:
  • a processing unit configured to generate a first message, where the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on According to the configuration of the bandwidth of the first channel occupied by the STAs of the first group of stations, the second preamble includes second bandwidth information, and the second bandwidth information is based on the frequency of the second channel occupied by the STAs of the second group of stations.
  • 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 less than or equal to the bandwidth supported by the AP;
  • the communication unit is configured to send the first message to the first group of STAs and the second group of STAs, the first message includes first data and second data, and the first preamble is used for Instructs the first group of STAs to use the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data ,
  • 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, and the first response frame is used to notify the first group of STAs that it has received.
  • the first data and the second response frame are used to notify the second group of STAs that the second data has been received.
  • the AP can assign the STA to receive data subcarriers by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the resources of the first channel and the second channel can be fully utilized to avoid AP and STA do not support high bandwidth capabilities, so they can only negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time. , To avoid interference caused by asynchronous data transmission and reception, and to notify the AP in time by sending a response frame to the AP by the STA that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so
  • the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.
  • the processing unit is further configured to determine the service flow of the first channel and the service flow of the second channel;
  • the communication unit is further configured to send a first notification message to some STAs in the first group of STAs when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold
  • the first notification message is used to instruct some 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 also used for all STAs.
  • a second notification message is sent to some STAs in the second group of STAs, the second notification message Used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.
  • the AP can flexibly guide the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In light extreme cases, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the communication unit is further configured to send a first management frame on the first channel, and the first management frame is used by the first group of STAs to determine to communicate with the AP Connection status;
  • the communication unit is further configured to send a second management frame on the second channel, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, allowing the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with The AP stays connected, so that data communication can be carried out quickly.
  • 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 frequency spectrum Allocation information, the first spectrum allocation information is used to indicate the frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first duration is all The 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, and the second spectrum allocation information A frequency domain resource used to instruct the second group of STAs to send fourth data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is on the second channel Transmission time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the fourth data on the second channel The transmission time on the same;
  • 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.
  • the AP informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carriers used for information can make full use of the first channel and second channel resources through multi-channel processing, which improves the overall air interface rate and avoids the inconsistency of AP and STA bandwidth capabilities, which can only be performed according to low bandwidth capabilities.
  • the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and communicating to the STA through the AP.
  • the way of sending the response frame informs the STA ⁇ AP that the data has been received in time, so as to avoid the waste of resources caused by the STA's continuous waiting.
  • 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 at the same time.
  • the second preamble and the second data are sent to the second group of STAs on the second channel, where the first preamble and the first data are transmitted on the first channel
  • the time is the same as the transmission time of the second preamble and the second data on the second channel.
  • the fourth aspect of the embodiments of the present application discloses a multi-channel processing device, including:
  • a communication unit 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 configured to identify a first preamble in the first message or a second preamble in the first message, where the first preamble includes first bandwidth information, and the first frequency
  • the bandwidth information is configured according to the bandwidth of the first channel occupied by the STAs of the first group of stations
  • the second preamble includes second bandwidth information
  • the second bandwidth information is configured according to the bandwidth of the first channel occupied by the STAs of the second group of stations.
  • 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, and the first message includes the first data and the 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 less than or equal to the bandwidth supported by the AP, the 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 A second response frame is sent to the AP on the channel, where the second response frame is used to notify the AP that the STA has received the second data.
  • the AP can assign the STA to receive data subcarriers by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier, which can make full use of the resources of the first channel and the second channel, and avoid using only one channel.
  • Waste reduce the occurrence of the overall air interface rate, send and receive data on the first channel and the second channel at the same time, to avoid interference caused by asynchronous data transmission and reception, and notify the AP in time by sending response frames to the AP by the STA.
  • the received data can avoid resource waste caused by the AP's continuous waiting, and the first channel and the second channel can be fully utilized through multi-channel processing.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive first data, and the first The second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data.
  • the communication unit is further configured to receive a message sent by the AP when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold.
  • a first notification message where the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel; or
  • the communication unit is further configured to receive a second notification message sent by the AP when the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold.
  • the second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.
  • the AP can flexibly guide the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In light cases, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the communication unit is configured to receive a first management frame sent by the AP on the first channel, and the first management frame is used by the first group of STAs to determine with the AP connection status;
  • the communication unit is further configured to receive a second management frame sent by the AP on the second channel, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, allowing the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with The AP stays connected and performs data communication quickly.
  • 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 ,
  • the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to send third data to the AP;
  • the first trigger frame includes a first duration, and the first duration is the first 3. The time when 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
  • 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, and the second spectrum allocation information is used for Instruct the second group of STAs to send the frequency domain resources of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is transmitted on the second channel ,
  • the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transmission time is the same;
  • 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.
  • the AP informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carriers used for information can make full use of the first channel and second channel resources through multi-channel processing, which improves the overall air interface rate and avoids the inconsistency of AP and STA bandwidth capabilities, which can only be performed according to low bandwidth capabilities.
  • the trigger frame When negotiating, only use the resources of one of the channels, which causes a waste of resources, and the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and passing AP to STA
  • the way of sending the response frame informs the STA ⁇ AP that the data has been received in time, so as to avoid the waste of resources caused by the STA's continuous waiting.
  • the fifth aspect of the embodiments of the present application discloses a multi-channel processing device.
  • the multi-channel processing device includes a processor, a memory, and a transceiver.
  • the memory is used to store a computer program, and the processor calls the computer program. Used to perform the following operations:
  • a first message is generated, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first group of STAs
  • the bandwidth of the occupied first channel is configured, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the STAs of the second group of stations, so 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 less than or equal to the bandwidth supported by the access point AP;
  • the first message is sent to the first group of STAs and the second group of STAs through a transceiver, the first message includes first data and second data, and the first message is used to indicate the first group of STAs.
  • a group of STAs uses the first bandwidth information to receive the first data, and a second group of STAs uses the second bandwidth information to receive the second data, the first group of STAs includes at least one STA, so The second group of STAs includes at least one STA;
  • first response frame from the first group of STAs and a second response frame from the second group of STAs through the transceiver, where the first response frame is used to notify the AP that the first group of STAs has The first data is received, and the second response frame is used to notify the AP that the second group of STAs has received the second data.
  • the AP can assign the STA to receive data subcarriers by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the resources of the first channel and the second channel can be fully utilized to avoid AP and STA do not support high bandwidth capabilities, so they can only negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time. , To avoid interference caused by asynchronous data transmission and reception, and to notify the AP in time by sending a response frame to the AP by the STA that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so
  • the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.
  • the processor is further configured to: determine the service flow of the first channel and the service flow of the second channel;
  • a first notification message is sent to some STAs in the first group of STAs through the transceiver, and the first notification message is A notification message is used to instruct some 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 traffic of the second channel is the same as that of the first channel.
  • a second notification message is sent to some STAs in the second group of STAs through the transceiver, and the second notification message is used to indicate that the second group of STAs Some STAs switch from the second channel to the first channel to become the first group of STAs.
  • the AP can flexibly guide the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In light cases, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the processor is further configured to: send a first management frame on the first channel through a transceiver, and the first management frame is used by the first group of STAs to determine and The connection status of the AP;
  • a second management frame is sent on the second channel through the transceiver, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, allowing the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with The AP stays connected, so that data communication can be carried out quickly.
  • the processor is further configured to: send a first trigger frame to the first group of STAs on the first channel through a transceiver, where the first trigger frame includes the First spectrum allocation information, where the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first The duration is the time for the third data to be transmitted on the first channel;
  • a second trigger frame is sent to the second group of STAs on the second channel through the transceiver, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The second group of STAs sends frequency domain resources of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time for the fourth data to be transmitted on the second channel, wherein, the first trigger frame and the second trigger frame are used to indicate 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 informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carriers used for information can make full use of the first channel and second channel resources through multi-channel processing, which improves the overall air interface rate and avoids the inconsistency of AP and STA bandwidth capabilities, which can only be performed according to low bandwidth capabilities.
  • the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and communicating to the STA through the AP.
  • the way of sending the response frame informs the STA ⁇ AP that the data has been received in time, so as to avoid the waste of resources caused by the STA's continuous waiting.
  • the processor is configured to send the first preamble and the first data and the first group of STAs to the first group of STAs on the first channel at the same time through a transceiver.
  • the second preamble and the second data are sent to the second group of STAs on the second channel, where the difference between the first preamble and the first data on the first channel is
  • the transmission time is the same as the transmission time of the second preamble and the second data on the second channel.
  • the sixth aspect of the embodiments of the present application discloses a multi-channel processing device.
  • the multi-channel processing device includes a processor, a memory, and a transceiver.
  • the memory is used to store a computer program, and the processor calls the computer program. Used to perform the following operations:
  • the first preamble in the first message or the second preamble in the first message where the first preamble includes first bandwidth information, and the first bandwidth information is based on the first According to the configuration of the bandwidth of the first channel occupied by the STAs of a group of stations, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the STAs of the second group of stations Configured
  • the first message includes the first data and the second data
  • the first The 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 less than or equal to the bandwidth supported by the AP
  • the station STA is the first group of stations STA Or a second group of STAs, where the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;
  • the AP can assign the STA to receive data subcarriers by modifying the preamble.
  • the first message includes the first preamble and the second preamble
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier
  • the first group of STAs The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the resources of the first channel and the second channel can be fully utilized to avoid AP and STA do not support high bandwidth capabilities, so they can only negotiate to use only one channel according to the lower bandwidth capability, which causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time. , To avoid interference caused by asynchronous data transmission and reception, and to notify the AP in time by sending a response frame to the AP by the STA that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive first data, and the first The second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data.
  • the processor is further configured to: when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, pass the transceiver Receiving a first notification message sent by the AP, where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel; or
  • the second notification message sent by the AP is received through the transceiver, and the second notification message is used To instruct some of the STAs to switch from the second channel to the first channel.
  • the AP can flexibly guide the STA to the first channel or the second channel by estimating the traffic of the channel. In this way, it can avoid that the load on one channel is very heavy, and the load on the other channel is very heavy. In light cases, the traffic conditions on the channel can be comprehensively considered, and resources can be used rationally.
  • the processor is further configured to: receive a first management frame sent by the AP on the first channel through the transceiver, and the first management frame is used for the The first group of STAs determines the connection status with the AP;
  • a second management frame sent by the AP is received on the second channel through the transceiver, where the second management frame is used by the second group of STAs to determine a connection state with the AP.
  • the AP sends the first management frame on the first channel and the second management frame on the second channel, allowing the STA to monitor the management frame on the channel and let the STA know that there is an AP nearby and can communicate with The AP stays connected and performs data communication quickly.
  • the processor is further configured to: receive a first trigger frame sent by the AP on the first channel through the transceiver, and the first trigger frame includes the First spectrum allocation information, where the first spectrum allocation information is used to instruct the STA to send the frequency domain resources of the third data to the AP, the first trigger frame includes a first duration, and the first duration is all The time when the third data is transmitted on the first channel;
  • the STA receives 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;
  • a second trigger frame sent by the AP is received on the second channel through the transceiver, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the
  • the STA sends the frequency domain resource of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time for the fourth data to be transmitted on the second channel, where all The first trigger frame and the second trigger frame are used to indicate 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 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.
  • the AP informs the STA to send data to the AP by sending a trigger frame to the STA
  • the sub-carrier of information can make full use of the resources of the first channel and the second channel through multi-channel processing, avoiding that AP and STA do not support the high-bandwidth capability, and only use one channel according to the lower bandwidth capability negotiation This causes waste and reduces the overall air interface rate.
  • Data is sent and received on the first channel and the second channel at the same time to avoid interference caused by asynchronous data transmission and reception, and the trigger frame indicates that the data is on the first channel and the second channel.
  • the above transmission time is the same to avoid interference, ensure data quality, and notify the STA in time by sending response frames to the STA through the AP, and avoid the waste of resources caused by the STA's continuous waiting.
  • a seventh aspect of the embodiments of the present application discloses a chip.
  • the chip includes at least one processor and an interface circuit.
  • the chip further includes a memory, the memory, the interface circuit, and the at least one processor.
  • the devices are interconnected by wires, and the at least one memory stores a computer program; when the computer program is executed by the processor, it implements any one of the first aspect and the second aspect or as described in the optional solution of any one of the aspects Methods.
  • the eighth aspect of the embodiments of the present application discloses a computer-readable storage medium, the computer storage medium stores a computer program, and the computer program, when executed by a processor, implements any one of the first aspect and the second aspect, or Any aspect of the method described in the alternative scheme.
  • FIG. 1 is a schematic diagram of a system architecture for multi-channel processing provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the distribution of a 20MHz bandwidth resource block provided by an embodiment of the present application
  • Fig. 3 is a schematic diagram of a 40MHz bandwidth resource block distribution provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the distribution of 80MHz bandwidth resource blocks provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a bandwidth occupation situation when an AP communicates with a STA according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of a message format provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a bandwidth occupation situation when an AP communicates with a STA according to an embodiment of the present application
  • FIG. 8 is a schematic flowchart of a multi-channel processing method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a format of a preamble in a first message provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another format of a preamble in a first message provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of an AP sending a first packet 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 traditional STA online method provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of an STA going online on the first channel according to an embodiment of the present application.
  • FIG. 14 is a schematic diagram of a STA going online 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 by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of a trigger frame format provided by an embodiment of the present application.
  • FIG. 17 is a schematic diagram of interference caused by asynchronous data transmission and reception according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of data receiving and sending synchronization according to an embodiment of the present application.
  • FIG. 19 is a schematic diagram of a cancellation signal generated by asynchronous data transmission and reception according to an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a multi-channel processing apparatus provided by an embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of a multi-channel processing apparatus provided by an embodiment of the present application.
  • FIG. 22 is a schematic structural diagram of a multi-channel processing apparatus provided by an embodiment of the present application.
  • FIG. 23 is a schematic structural diagram of a multi-channel processing apparatus provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a multi-channel processing system architecture provided by an embodiment of the present application.
  • the system includes at least one access point (AP) 101 and at least one station (station, STA) 102.
  • the AP is a network element that provides services for the site.
  • the access point AP is an access point that can support an 802.11 series protocol
  • the access point AP is a device that supports a 160 MHz (Mega Hertz, MHz) bandwidth capability.
  • the station STA may be a station that supports the 802.11.ax protocol
  • the station STA is a device that supports 80M bandwidth.
  • the method provided in the embodiment of the present application can be applied to the multi-channel processing system shown in FIG. 1.
  • one access point AP can perform data transmission with multiple STAs.
  • the AP in FIG. 1 can transmit uplink data or downlink data with two STAs.
  • WiFi wireless Internet access WiFi technology
  • MIMO multiple in multiple out
  • APs can support orthogonal frequency division multiple access (OFDMA) technology, and can send and receive data with multiple STAs at the same time, and each STA uses a different subcarrier.
  • OFDMA technology divides the transmission bandwidth into a series of orthogonal non-overlapping sub-carrier sets, and allocates different sub-carrier sets to different users to achieve multiple access. This technology can dynamically allocate available bandwidth resources to users who need it, and it is easy to optimize the use of system resources.
  • resource unit Since WiFi6, the concept of resource unit (RU) has been introduced. In WiFi6, the size of resource block RU has multiple sizes, including resource blocks of 26 subcarriers, resource blocks of 52 subcarriers, and 106 subcarriers. Large and small resource blocks, 242 subcarrier size resource blocks, 484 subcarrier size resource blocks, and 996 subcarrier size resource blocks.
  • the size of a 20MHz bandwidth resource block is limited to 26, 52, 106, and 242.
  • Figure 2 shows a schematic diagram of the distribution of 20MHz bandwidth resource blocks.
  • the 26-sized resource block in the middle spans the DC subcarrier.
  • the DC subcarrier is the small slit in the middle of the figure.
  • the first layer is the location distribution of 9 resource blocks of 26 size
  • the second layer is 4 resource blocks of 52 and 1 resource block of 26 size.
  • the third layer is the location distribution of 2 resource blocks of 106 and 1 size of 26, and the fourth layer is the location distribution of 1 resource blocks of 242 size.
  • the 20MHZ spectrum block diagram can combine any resource blocks in the 4 layers to form a spectrum with the size of 242 subcarriers.
  • only one resource block can be allocated to each user, but multiple users can be allocated to the same resource block.
  • the size of the 40MHz bandwidth resource block is limited to 26, 52, 106, 242, and 484.
  • Fig. 3 shows a schematic diagram of the distribution of 40MHz bandwidth resource blocks.
  • the small slit in the middle is the DC subcarrier.
  • the first layer is the location distribution of 18 resource blocks of size 26, the second layer is the location distribution of 8 resource blocks of 52 and 2 size of 26, and the third layer is the location distribution of 4 resource blocks of 106 and 2 size of 26.
  • the fourth layer is the location distribution of two 242 size resource blocks, the 242 size resource block is 20M bandwidth, the fifth layer is the location distribution of one 484 size resource block, and the 484 size resource block is 40M bandwidth.
  • the 40MHz spectrum block diagram can combine any resource blocks in these 5 layers to form a spectrum with the size of 484 subcarriers, and each user can only allocate one of the resource blocks.
  • Resource blocks of 80MHz bandwidth are limited to 26, 52, 106, 242, 484, and 996.
  • Figure 4 shows a schematic diagram of the distribution of 80MHz bandwidth resource blocks.
  • the 80MHz bandwidth block diagram is divided into 6 layers, the middle 26-sized resource block spans the DC sub-carrier, and the middle small slot is the DC sub-carrier.
  • the first layer is the location distribution of 37 resource blocks of size 26
  • the second layer is the location distribution of 16 resource blocks of 52 and 5 size of 26
  • the third layer is the location distribution of 8 resource blocks of 106 and 5 size of 26.
  • the fourth layer is the location distribution of 4 resource blocks of size 242 and 1 resource block of size 26.
  • the resource block size of 242 is 20M bandwidth.
  • the fifth layer is the location distribution of 2 resource blocks of size 484 and 1 resource block of size 26.
  • Resources of size 484 The block is 40M bandwidth
  • the sixth layer is the location distribution of one 996 size resource block
  • the 996 size resource block is 80M bandwidth.
  • the 80MHz spectrum block diagram can combine any resource blocks in the 6 layers to form a spectrum with the size of 996 subcarriers, and each user can only allocate one of the resource blocks.
  • Fig. 5 shows a schematic diagram of bandwidth occupancy when the AP communicates with the STA.
  • the message format is As shown in Figure 6, including the preamble and data, the preamble includes the high-efficiency signaling field A (SIGA), which is the bandwidth capability of 160M supported by the AP, and the traditional signaling field B (SIGB), according to the WiFi6 standard, odd sub-channels
  • SIGA high-efficiency signaling field A
  • SIGB traditional signaling field B
  • the SIGB of the AP is the same, and the SIGB of the even-numbered sub-channel is the same. That is, when the AP communicates with the STA2 that only supports the 80M bandwidth, it can only receive and send data in the 80M bandwidth, which causes a waste of the remaining 80M bandwidth.
  • FIG. 7 shows a schematic diagram of the bandwidth occupation when the AP communicates with the STA. If the AP supports 160M bandwidth, STA1 supports 160M bandwidth, and STA2 only supports 80M bandwidth. According to the WiFi6 standard, when allocating bandwidth resources, the AP allocates 80M bandwidth to STA1 that supports 160M bandwidth for receiving and sending data. , To allocate 80M bandwidth to STA2 supporting 80M bandwidth for receiving and sending data, but when STA1 supporting 160M bandwidth has less business traffic, and STA2 supporting 80M bandwidth has larger business traffic, there is still waste . In order to solve the above technical problems, the embodiments of the present application provide the following solutions.
  • FIG. 8 is a schematic flowchart of a multi-channel processing method provided by an embodiment of the present application. The method includes but is not limited to the following steps:
  • Step S801 The access point AP generates a first message.
  • the first message includes a first preamble and a second preamble
  • the first preamble includes first bandwidth information and first spectrum allocation information
  • the first bandwidth information is based on the first group of stations occupied by STAs
  • the first spectrum allocation information is used to indicate the frequency domain resources for the first group of STAs to receive the first data
  • the second preamble includes the second bandwidth information and the second spectrum allocation information
  • the second bandwidth is configured according to the frequency width of the second channel occupied by the second group of station STAs
  • the second channel allocation information is used to indicate the frequency domain resources for 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 less than or equal to the bandwidth supported by the AP.
  • the access point AP supports devices with a bandwidth of 160M
  • the first group of STAs are devices that support 80M bandwidth
  • the second group of STAs are devices that support 80M bandwidth
  • the first packet The format of the preamble is shown in Figure 9.
  • the first message includes a first preamble and a second preamble
  • the first preamble includes first bandwidth information and first spectrum allocation information
  • the first bandwidth information is a high-efficiency signaling field A (SIGA), SIGA 80M
  • the first spectrum allocation information is the allocation information of sub-channels 1, 2, 3, and 4
  • the second preamble includes the second bandwidth information and the second spectrum allocation information
  • the second bandwidth information is the high-efficiency signaling field A (SIGA)
  • SIGA is 80M
  • the second spectrum allocation information is allocation information of 5, 6, 7, and 8 sub-channels.
  • the access point AP is a device that supports 320M bandwidth
  • the first group of STAs is a device that supports 160M bandwidth
  • the second group of STAs is a device that supports 80M bandwidth
  • the third group of STAs is a device that supports 80M bandwidth.
  • the first message includes a first preamble, a second preamble, and a third preamble.
  • the first preamble includes first bandwidth information and first spectrum allocation information.
  • the first bandwidth information is a high-efficiency signaling field A (SIGA ), SIGA is 160M, the first spectrum allocation information is 1, 2, 3, 4, 5, 6, 7, and 8 sub-channel allocation information;
  • the second preamble includes second bandwidth information and second spectrum allocation information,
  • the second bandwidth information is the high efficiency signaling field A (SIGA), the SIGA is 80M, and the second spectrum allocation information is the allocation information of the 9, 10, 11, and 12 sub-channels.
  • the third preamble includes the third bandwidth information and the third spectrum allocation information.
  • the third bandwidth information is the high efficiency signaling field A (SIGA), the SIGA is 80M, and the third spectrum allocation information is 13, 14, 15, 16 sub-fields. Channel allocation information.
  • Step S802 The AP sends the first message to the first group of STAs and the second group of STAs.
  • the first message includes first data and second data
  • the first preamble is used to instruct the first group of STAs to use the first bandwidth information to receive the first data
  • the second preamble is used to instruct the second group of STAs
  • the first group of STAs includes at least one STA
  • the second group of STAs includes at least one STA.
  • the downlink multi-user transmission adopts the AP centralized scheduling method, and the AP sends the first group of STAs and STAs to the first group of STAs simultaneously through OFDMA or multi-user multiple-input multiple-output (MU-MIMO).
  • the second group of STAs sends the first message.
  • the first group of STAs recognizes the first preamble in the first packet, and obtains the resource block allocated by the AP to the first group of STAs according to the first spectrum allocation information in the first preamble ,
  • the first group of STAs receives the first data sent by the AP to the first group of STAs in the resource block;
  • the second group of STAs recognizes the second preamble in the first packet, and according to the second preamble
  • the second spectrum allocation information in the code obtains the resource block allocated by the AP to the second group of STAs, and the second group of STAs receives the second data sent by the AP to the second group of STAs in the resource block.
  • FIG. 11 shows that the AP sends the first packet to the first group of STAs and the second group of STAs.
  • the first group of STAs includes STA1 and STA2, and both STA1 and STA2 are devices that support 80M bandwidth.
  • the second group of STAs includes STA3 and STA4, both STA3 and STA4.
  • STA1 and STA2 are on the first channel
  • STA3 and STA4 are on the second channel.
  • STA1 When STA1 receives the first message on the first channel, STA1 recognizes the first preamble in the first message According to the first spectrum allocation information in the first preamble, the subcarrier allocated by AP to STA1 is obtained. STA1 obtains the data sent by AP to STA1 on the corresponding subcarrier.
  • STA2 When STA2 receives the first message on the first channel STA2 recognizes the first preamble in the first message, obtains the subcarrier allocated by AP to STA2 according to the first spectrum allocation information in the first preamble, and STA2 obtains the data sent by AP to STA2 on the corresponding subcarrier.
  • STA3 When STA3 receives the first message on the second channel, STA3 identifies the second preamble in the first message, and obtains the subcarrier allocated by AP to STA3 according to the second spectrum allocation information in the second preamble, STA3 Obtain the data sent by AP to STA3 on the corresponding subcarrier.
  • STA4 receives the first message on the first channel, STA4 recognizes the second preamble in the first message, and according to the second preamble in the second preamble.
  • the spectrum allocation information obtains the subcarrier allocated by the AP to STA4, and STA4 obtains the data sent by the AP to STA2 on the corresponding subcarrier.
  • STA1 and STA2 share 80M bandwidth resource blocks.
  • STA3 and STA4 share 80M bandwidth resource blocks. Specifically, STA3 and STA4 How many of the 80M resource blocks occupy respectively is determined by AP scheduling.
  • the AP and the STA establish a communication connection as follows: As shown in FIG. 12, the traditional STA goes online. If the AP is a device that supports the 160M bandwidth, and STA1, STA2, and STA3 are all devices that support the 80M bandwidth, the 160M channel is divided into a master 80M and a slave 80M.
  • the AP sends a beacon frame at the master 20M in the master 80M, STA1 and STA2 listen to the beacon frame, and send an authentication request at the master 20M, and the AP replies with the STA1 and STA2 authentication responses, and the AP establishes a connection with STA1 and STA2;
  • the AP is also sending a beacon frame from 80M from 20M, and STA3 also listens to the beacon frame, when STA3 sends an authentication request, because the AP is not from 80M from 20M, the AP cannot receive the authentication request. Therefore, STA3 cannot go online at the slave 80M, and can only go online at the master 80M first.
  • the STA is online on the first channel.
  • STA1, STA2, STA3, and STA4 are online at the main 80M, that is, they are all on the first channel, and the AP sends a notification message to STA3 and STA4 to notify STA3 and STA4 to switch from 80M, that is On the second channel, the AP is waiting at the master 20M from the 80M, and sends a beacon frame on the master 20M from the 80M.
  • STA3 and STA4 listen to the beacon frame, they send an authentication request to the AP, and the AP receives the authentication request. Therefore, STA3 and STA4 establish a connection with the AP from 80M.
  • the STA is online on the first channel and the second channel, and STA3 and STA4 are online from 80M.
  • STA1 and STA2 are on the master 80M, that is, the first channel
  • STA3 and STA4 are on the slave 80M, that is, the second channel.
  • the AP can communicate with STA1, STA2, STA3, and STA4.
  • the AP before the AP sends the first message to the first group of STAs and the second group of STAs, the AP sends the first management frame on the first channel.
  • the first management frame is used by the first group of STAs to determine the communication with the AP.
  • Connection status The AP sends a second management frame on the second channel, and the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the AP After the AP establishes a communication connection with the first group of STAs and the second group of STAs, that is, after the first group of STAs and the second group of STAs go online, in order to keep the first group of STAs and the second group of STAs continuously connected to the AP, the AP
  • the first management frame is sent on the first channel
  • the second management frame is sent on the second channel.
  • the first management frame and the second management frame may be beacon frames, and the AP will periodically broadcast and send the beacon frames to the outside.
  • the AP will broadcast and send a beacon frame on the first channel and the second channel every 100 milliseconds, and the first group of STAs will continue on the first channel it supports.
  • the beacon frame is monitored to learn about the surrounding APs, and the second group of STAs continuously monitor the beacon frame on the second channel that it supports to learn about the surrounding APs.
  • Step S803 The AP receives the first response frame from the first group of STAs and the second response frame from the second group of STAs.
  • the first response frame is used to notify the AP that the first group of STAs has received the first data
  • the second response frame is used to notify the AP that the second group of STAs have received the second data.
  • the embodiment of the present application further includes the following steps:
  • Step S804 The AP determines the service flow of the first channel and the service flow of the second channel.
  • the service flow of the first channel is the flow of communication between the AP and the first group of STAs
  • the service flow of the second channel is the flow of communication between the AP and the second group of STAs.
  • the first group of STAs are on the first channel and the second group of STAs are on the second channel
  • the first group of STAs and APs will perform video streaming within ten minutes
  • the service traffic value of the first channel is 100M
  • the second group of STAs is on the second channel.
  • the group STA and the AP perform instant message transmission.
  • the service flow value of the second channel is 20M. If the first threshold is 50M, the AP determines that the difference between the service flow of the first channel and the service flow of the second channel is 70M greater than
  • the first threshold is 50 trillion.
  • the AP can notify the STA to switch channels according to the size of the traffic on the first channel and the traffic on the second channel. At the same time, the AP can also notify the STA to switch channels according to the importance of the STA, or according to the STA’s importance.
  • the bandwidth capability of the STA informs the STA to switch the channel.
  • the AP may also estimate the traffic situation of the STA before the STA establishes a communication connection with the AP, that is, before the STA goes online, and according to the traffic situation of the STA, notify the STA to switch channels.
  • Step S805 The AP determines whether the difference between the service flow of the first channel and the service flow of the second channel is greater than the first threshold.
  • step S806 is executed, and if the difference between the service flow of the first channel and the service flow of the second channel is greater than the first threshold. Threshold, then step S807 is executed.
  • step S806 is executed.
  • Step S806 The AP sends a first notification message to some STAs in the first group of STAs.
  • the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel.
  • FIG. 15 shows a schematic diagram of channel switching.
  • the first group of STAs includes STA1, STA3, and STA4, and the STA1, STA3, and STA4 are all on the first channel. Since the service flow of the first channel is greater than the service flow of the second channel, the AP sends the first channel to STA1, STA2, or STA4.
  • the notification message informs STA1 or STA2 or STA4 to switch from the first channel to the second channel.
  • Step S807 The AP sends a second notification message to some STAs in the second group of STAs.
  • the second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.
  • the foregoing embodiment illustrates how the AP makes full use of the bandwidth to send data to the STA in the downlink direction. Next, it will describe how the AP makes full use of the bandwidth to receive data sent by the STA in the uplink direction.
  • the AP sends a first trigger frame to the first group of STAs on the first channel, the first trigger frame includes first spectrum allocation information, and the first spectrum allocation information is used to indicate the frequency domain resources for the first group of STAs to send third data to the AP ,
  • the first trigger frame includes a first duration, and the first duration is the time for the third data to be transmitted on the first channel;
  • the AP receives the third data sent by the first group of STAs on the first channel;
  • the AP sends a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the STA 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
  • the second trigger frame includes second spectrum allocation information
  • the second spectrum allocation information is used to indicate the frequency domain resources for the second group of STAs to send fourth data to the AP
  • the second trigger frame includes a second duration, the second duration is the 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 indicate the transmission of the third data on the first channel
  • the time is the same as the transmission time of the fourth data on the second channel;
  • the AP sends a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the STA that the AP has received the fourth data.
  • the AP needs to send a trigger frame to the STA to transfer the resource indication information for uplink transmission, so that simultaneous multi-user transmission can be performed.
  • the format of the trigger frame is shown in Figure 16.
  • the trigger frame mainly includes two parts of information: the common information field is used to indicate the type of trigger frame and some common trigger information of STAs, and the user information field is for each STA to indicate its resource indication information. .
  • the first group of STAs recognizes the first spectrum allocation information on the first trigger frame, that is, obtains the resource blocks allocated by the AP to the first group of STAs.
  • the resource block sends third data to the AP.
  • 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 to notify the first group of STAs.
  • the AP of the group of STAs has received the third data; after the second group of STAs receives the second trigger frame on the second channel, they identify the second spectrum allocation information on the second trigger frame, that is, obtain the AP allocated to the second group of STAs The second group of STAs sends the fourth data to the AP in this resource block.
  • the AP receives the third data sent by the second group of STAs on the second channel, and the AP sends to the second group of STAs on the second channel
  • the fourth response frame informs 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 second group of STAs sending the fourth data to the AP are the same, and the third The transmission time of the data on the first channel and the fourth data on the second channel is the same.
  • FIG. 17 shows a schematic diagram of a situation where data transmission and reception are not synchronized.
  • the AP sends data on the first channel and receives data on the second channel
  • the first channel will interfere with the second channel, causing the AP to be unable to receive data on the second channel.
  • this application proposes the first channel
  • the data transmission and reception on the two channels are synchronized, as shown in Figure 18, which shows that the first channel and the second channel simultaneously send and receive data.
  • this application also proposes the following solutions.
  • the AP When the AP sends the second message to the first group of STAs on the first channel at the first time, the AP receives the fifth data sent from the second group of STAs on the second channel, and the AP is on the first channel at the first time.
  • the first cancellation signal is generated when sending the second message to the first group of STAs; the first cancellation signal is used to offset the AP’s reception of the second message on the second channel when the AP sends the second message to the first group of STAs on the first channel.
  • the interference signal generated when the fifth data of the group STA is shown in Figure 19; or
  • the AP When the AP sends a second message to the second group of STAs on the second channel at the second time, the AP receives the sixth data sent from the first group of STAs on the first channel, and the AP sends the second message to the second channel at the second time.
  • the second group of STAs generates a second cancellation signal when sending the second message; the second cancellation signal is used to offset the AP’s reception of the first message on the first channel when the AP sends the second message to the second group of STAs on the second channel. Interference signal generated when the sixth data of the group STA.
  • the AP 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 can assign the reception to the STA by modifying the preamble.
  • the data subcarrier that is, the first message includes the first preamble and the second preamble.
  • the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble and obtains the first group of STAs based on the subcarrier.
  • Data, and the second group of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier.
  • the first channel and the second channel can be fully utilized through multi-channel processing. To prevent AP and STA from not supporting high-bandwidth capabilities, they can only negotiate to use only one channel based on the lower bandwidth capabilities, which will cause waste and reduce the overall air interface rate.
  • the data is sent and received at the same time to avoid interference caused by asynchronous data sending and receiving, and the STA sends a response frame to the AP to inform the AP in time that the STA has received the data, so as to avoid resource waste caused by the AP's continuous waiting.
  • FIG. 20 is a schematic structural diagram of a multi-channel processing apparatus according to an embodiment of the present application.
  • the multi-channel processing apparatus 2000 may include a processing unit 2001 and a communication unit 2002. The detailed description of each unit is as follows.
  • the processing unit 2001 is configured to generate a first message, where the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is According to the configuration of the bandwidth of the first channel occupied by the STAs of the first group, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the STAs of the second group.
  • 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 less than or equal to the bandwidth supported by the AP;
  • the communication unit 2002 is configured to send the first message to the first group of STAs and the second group of STAs, where the first message includes first data and second data, and the first preamble is used for Instructing a first group of STAs to use the first bandwidth information to receive the first data, and the second preamble is used to instruct a second group of STAs to use the second bandwidth information to receive the second data,
  • the first group of STAs includes at least one STA
  • 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 of the first group The STA 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.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so
  • the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.
  • the processing unit 2001 is further configured to determine the service flow of the first channel and the service flow of the second channel; the communication unit 2002 is further configured to When the difference between the service flow of one channel and the service flow of the second channel is greater than the first threshold, a first notification message is sent to some STAs in the first group of STAs, and the first notification message is used to indicate all Some STAs in the first group of STAs switch from the first channel to the second channel to become the second group of STAs; the communication unit is also used for the traffic of the second channel and the first channel When the difference between the service traffic of, is greater than the first threshold, a second notification message is sent to some STAs in the second group of STAs, where the second notification message is used to indicate some STAs in the second group of STAs Switching from the second channel to the first channel becomes the first group of STAs.
  • the communication unit 2002 is further configured to send a first management frame on the first channel, and the first management frame is used by the first group of STAs to determine the relationship with the The connection status of the AP; the communication unit 2002 is further configured to send a second management frame on the second channel, and the second management frame is used for the second group of STAs to determine the connection status with the AP.
  • the communication unit 2002 is further configured to send a first trigger frame to the first group of STAs on the first channel, and the first trigger frame includes the first trigger frame.
  • Spectrum allocation information where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first duration is The time when the third data is transmitted on the first channel;
  • the communication unit 2002 is further configured to receive the third data sent by the first group of STAs on the first channel;
  • the communication unit 2002 And 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, and the second spectrum allocation
  • the information is used to indicate the frequency domain resources for the second group of STAs to send fourth data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is in the second The transmission time on the channel, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel.
  • the transmission time on the channel is the same; the communication unit 2002 is further configured to receive the fourth data sent by the second group of STAs on the second channel; the communication unit 2002 is further configured to A fourth response frame is sent to the second group of STAs on the channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.
  • 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 at the same time.
  • the second preamble and the second data are sent to the second group of STAs on the second channel, where the difference between the first preamble and the first data on the first channel is
  • the transmission time is the same as the transmission time of the second preamble and the second data on the second channel.
  • FIG. 21 is a schematic structural diagram of a multi-channel processing apparatus provided by an embodiment of the present application.
  • the multi-channel processing apparatus 2100 may include a communication unit 2101 and a processing unit 2102. The detailed description of each unit is as follows.
  • the communication unit 2101 is configured to receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;
  • the processing unit 2102 is configured to identify a first preamble in the first message or a second preamble in the first message, where the first preamble includes first bandwidth information, and the first The bandwidth information is configured according to the bandwidth of the first channel occupied by the STAs of the first group, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth occupied by the STAs of the second group.
  • 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, and the first packet includes the first data and 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 less than or equal to the bandwidth supported by the AP, so
  • 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, where the first response frame is used 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.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive first data, and the first The second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data.
  • the communication unit 2101 is further configured to receive a transmission from the AP when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold.
  • the first notification message of the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel; or
  • the communication unit 2101 is further configured to receive a second notification message sent by the AP when the difference between the service flow of the second channel and the service flow of the first channel is greater than a first threshold.
  • the notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.
  • the communication unit 2101 is further configured to receive a first management frame sent by the AP on the first channel, and the first management frame is used for the first group of STAs Determine the connection status with the AP;
  • the communication unit 2101 is further configured to receive a second management frame sent by the AP on the second channel, where the second management frame is used for the second group of STAs to determine the connection status with the AP.
  • the communication unit 2101 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, the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to send third data to the AP, the second trigger frame includes a second duration, and the second duration is the The 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 the third data of the AP A response frame, where the third response frame is used to notify the STA that the AP has received the third data; or
  • 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, and the second spectrum allocation information is used for To instruct the second group of STAs to send the frequency domain resources of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is on the second channel Transmission time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the fourth data on the second channel The transmission time is the same; the communication unit 2101 is also used to send the fourth data to the AP; the communication unit 2101 is also used to receive a fourth response frame of the AP, the fourth response frame Used to notify the STA that the AP has received the fourth data.
  • FIG. 22 shows a multi-channel processing apparatus 2200, a processor 2201, and a transceiver 2203 according to an embodiment of the present application.
  • the multi-channel processing apparatus 2200 further includes a memory 2202, and the processor 2201
  • the memory 2202 and the transceiver 2203 are connected to each other through a bus 2204.
  • the memory 2202 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 402 is used to store computer programs and data.
  • the transceiver 2203 is used to receive and send data.
  • the processor 2201 may be one or more central processing units (CPUs).
  • CPUs central processing units
  • the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 2201 in the multi-channel processing device 2200 invokes the computer program stored in the memory 2202 to perform the following operations:
  • a first message is generated, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first group of STAs
  • the bandwidth of the occupied first channel is configured, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the second group of station STAs, so 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 less than or equal to the bandwidth supported by the access point AP;
  • the first message is sent to the first group of STAs and the second group of STAs through the transceiver 2203, the first message includes first data and second data, and the first preamble is used to indicate The first group of STAs uses the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data,
  • the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;
  • the first response frame is used to notify the first group of STAs that the first group of STAs has received the first response frame.
  • the second response frame is used to notify the second group of STAs that the second data has been received.
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so
  • the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.
  • the processor 2201 is further configured to: determine the service flow of the first channel and the service flow of the second channel;
  • a first notification message is sent to some STAs in the first group of STAs through the transceiver, and the first notification message is A notification message is used to instruct some 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 traffic of the second channel is the same as that of the first channel.
  • a second notification message is sent to some STAs in the second group of STAs through the transceiver, and the second notification message is used to indicate that the second group of STAs Some STAs switch from the second channel to the first channel to become the first group of STAs.
  • the processor 2201 is further configured to: send a first management frame on the first channel through a transceiver, and the first management frame is used for the first group of STAs to determine The connection status with the AP;
  • a second management frame is sent on the second channel through the transceiver 2203, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the processor 2201 is further configured to: send a first trigger frame to the first group of STAs on the first channel through the transceiver 2203, where the first trigger frame includes The first spectrum allocation information, the first spectrum allocation information is used to indicate the frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the The first duration is the time for the third data to be transmitted on the first channel; the third data sent by the first group of STAs is received on the first channel through the transceiver 2203; Sending 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;
  • a second trigger frame is sent to the second group of STAs on the second channel through the transceiver 2203, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate all Frequency domain resources for the second group of STAs to send fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time for the fourth data to be transmitted on the second channel ,
  • the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel Same; receiving the fourth data sent by the second group of STAs on the second channel through the transceiver 2203; sending a fourth response frame to the second group of STAs on the second channel through the transceiver 2203, The fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.
  • the processor 2201 is configured to: send the first preamble and the first group of STAs to the first group of STAs on the first channel at the same time through a transceiver. Data and send the second preamble and the second data to the second group of STAs on the second channel, where the first preamble and the first data are on the first channel.
  • the transmission time on the above is the same as the transmission time of the second preamble and the second data on the second channel.
  • FIG. 23 shows a multi-channel processing apparatus 2300, a processor 2301, and a transceiver 2303 according to an embodiment of the present application.
  • the multi-channel processing apparatus 2300 further includes a memory 2302, and the processor 2301
  • the memory 2302 and the transceiver 2303 are connected to each other through a bus 2304.
  • the memory 2302 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 402 is used to store computer programs and data.
  • the transceiver 2303 is used to receive and send data.
  • the processor 2301 may be one or more central processing units (CPU).
  • CPU central processing units
  • the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 2301 in the multi-channel processing device 2300 invokes the computer program stored in the memory 2302 to perform the following operations:
  • the first preamble in the first message or the second preamble in the first message where the first preamble includes first bandwidth information, and the first bandwidth information is based on the first According to the configuration of the bandwidth of the first channel occupied by the STAs of a group of stations, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the STAs of the second group of stations Configured
  • the first message includes the first data and the second data
  • the first The 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 less than or equal to the bandwidth supported by the AP
  • the station STA is the first group of stations STA Or a second group of STAs, where the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;
  • the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive first data, and the first The second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data.
  • the processor 2301 is further configured to: when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, use the transceiver Receiving a first notification message sent by the AP, where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel; or
  • the second notification message sent by the AP is received through the transceiver, and the second notification message is used To instruct some of the STAs to switch from the second channel to the first channel.
  • the processor 2301 is further configured to: receive a first management frame sent by the AP on the first channel through the transceiver, and the first management frame is used for all The first group of STAs determine the connection status with the AP;
  • a second management frame sent by the AP is received on the second channel through the transceiver 2303, where the second management frame is used by the second group of STAs to determine the connection status with the AP.
  • the processor 2301 is further configured to: receive a first trigger frame sent by the AP on the first channel through the transceiver 2303, where the first trigger frame includes The first spectrum allocation information, the first spectrum allocation information is used to indicate the frequency domain resource for the STA to send third data to the AP; the first trigger frame includes a first duration, and the first duration Is the time when the third data is transmitted on the first channel; the third data is sent to the AP through the transceiver 2303; the third response frame of the AP is received through the transceiver 2303, The third response frame is used to notify the STA that the AP has received the third data; or
  • a second trigger frame sent by the AP is received on the second channel through the transceiver 2303, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate all
  • the STA sends the frequency domain resource of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the 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 indicate 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 transceiver 2303 sends the fourth data to the AP; the fourth response frame of the AP is received through the transceiver 2303, and the fourth response frame is used to notify the STA that the AP has received all the data.
  • the fourth data is used to notify the STA that the AP has received all the data.
  • An embodiment of the present application also provides a chip system.
  • the chip system includes at least one processor, a memory, and an interface circuit.
  • the memory, the transceiver, and the at least one processor are interconnected by wires, and the at least one memory
  • a computer program is stored therein; when the computer program is executed by the processor, the method flow shown in FIG. 8 is realized.
  • the embodiment of the present application also provides a computer-readable storage medium in which a computer program is stored, and when it runs on a processor, the method flow shown in FIG. 8 is implemented.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product runs on a processor, the method flow shown in FIG. 8 is realized.
  • the computer program can be stored in a computer readable storage medium.
  • the computer program During execution, it may include the procedures of the foregoing method embodiments.
  • the aforementioned storage media include: ROM or random storage RAM, magnetic disks or optical disks and other media that can store computer program codes.

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Abstract

Certains modes de réalisation de la présente invention concernent un procédé de traitement multicanal et un dispositif associé. Le procédé comprend les étapes suivantes : un point d'accès (AP) génère un premier paquet, le premier paquet comprenant un premier préambule et un second préambule, le premier préambule comprenant des premières informations de bande passante, les premières informations de bande passante étant configurées en fonction de la bande passante d'un premier canal occupé par un premier groupe de stations (STA), le second préambule comprend des secondes informations de bande passante, et les secondes informations de bande passante étant configurées en fonction de la bande passante d'un second canal occupé par un second groupe de STA ; l'AP transmet le premier paquet au premier groupe de STA et au second groupe de STA, le premier paquet comprenant des premières données et des secondes données ; et l'AP reçoit une première trame de réponse provenant du premier groupe de STA et une seconde trame de réponse provenant du second groupe de STA. Les modes de réalisation de la présente invention permettent d'utiliser pleinement une ressource de canal, et d'accroître le débit global d'interface hertzienne.
PCT/CN2021/083967 2020-03-31 2021-03-30 Procédé de traitement multicanal et dispositif associé WO2021197325A1 (fr)

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