WO2017020171A1

WO2017020171A1 - Multi-channel mixing transmission method, base station and wireless access node

Info

Publication number: WO2017020171A1
Application number: PCT/CN2015/085733
Authority: WO
Inventors: 杨懋; 闫中江; 陈特彦
Original assignee: 华为技术有限公司
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2017-02-09

Abstract

An embodiment of the present invention discloses a multi-channel mixing transmission method, comprising: when an updated station detects that a master channel is reserved, monitoring at least one slave channel associated with the master channel; selecting, by the updated station, from the associated at least one slave channel a slave channel as a proxy master channel; initiating, by the updated station, an access process with respect to the proxy master channel; if the updated station successfully accesses the proxy master channel, transmitting, by the updated station, data via the proxy master channel before a reserved time period of the master channel ends. An embodiment of the present invention also discloses a station and AP. Implementing the present invention can improve channel utilization rate.

Description

Multi-channel hybrid transmission method, station and wireless access node

Technical field

The embodiments of the present invention relate to the field of communications, and in particular, to a multi-channel hybrid transmission method, a station, and a wireless access node.

Background technique

With the rapid evolution of the Wireless Local Access Network (WLAN) standard, WLAN systems aggregate more and more bandwidth to achieve higher transmission rates. In the WLAN standard, a station reserves a channel for a period of time before the data is transmitted, and the reserved channel is used for subsequent data transmission of the station. The bandwidth of the reserved channel of the station determines the available bandwidth during the subsequent entire data transmission.

In the current IEEE 802.11 protocol, the specific process of the channel reserved channel is: when the data transmission with the peer device is required, the primary channel is intercepted, and when the channel is determined to be an idle channel, the rollback process is triggered, that is, The back-off counter is generated to generate a random number to implement the fallback process. When the idle time of the channel reaches a time slot length (Timeslot), the back-off counter is decremented by one. When the random number generated by the backoff counter is reduced to 0, the bandwidth of the channel is selected, and a channel reserved frame is sent on the selected channel, the reserved frame of the channel is reserved for the channel, and is opposite to the peer device. Data transmission is performed on the reserved channel. When the station transmits data, it must pass the primary channel and use the channel bonding technology to transmit data through the primary channel and the corresponding new data. The current channel bonding technology can only adopt the method of continuous binding and fixed binding, and the flexibility is insufficient. Insufficient utilization.

Summary of the invention

The embodiments of the present invention provide a multi-channel hybrid transmission method, a station, and a wireless access node, which can solve the problem of low channel utilization in the prior art.

In order to solve the above technical problem, the first aspect of the embodiments of the present invention provides a multi-channel hybrid transmission method, including:

When the new version site detects that the primary channel is reserved, it listens to at least one secondary channel associated with the primary channel;

The new version station selects one slave channel as the proxy primary channel from the at least one associated channel of the association;

The new version site initiates an access procedure to the proxy primary channel;

If the new version site successfully accesses the proxy primary channel, the new version site transmits data through the proxy primary channel before the reservation time of the primary channel ends.

With reference to the first aspect, in a first possible implementation, the new version of the station, selecting a slave channel as the proxy primary channel from the at least one associated channel of the association, includes:

The new version site receives the first control frame that is sent by the AP and carries the first slave channel identifier, and if the new version station detects that the slave channel corresponding to the first slave channel identifier is idle, the first slave station The slave channel corresponding to the channel identifier serves as the proxy primary channel; or

The new version site receives a second control frame that is sent by the AP and carries the second slave channel identifier;

After receiving the first handover indication sent by the AP, the new version station uses the slave channel corresponding to the second slave channel identifier as a proxy primary channel; or

The new version site receives a third control frame that is sent by the AP and carries multiple slave channel identifiers;

After receiving the second handover indication that is sent by the AP and carrying the third slave channel identifier, the new version station uses the slave channel corresponding to the third slave channel identifier as the proxy primary channel.

With reference to the first aspect, in a second possible implementation manner, the process that the new version site initiates access to the proxy primary channel includes:

The new version of the site receives the triggering frame sent by the AP, where the triggering frame carries the device identifier of the new version of the site;

The new version site initiates an access procedure to the proxy primary channel according to the trigger frame; or

The new version site initiates an access procedure to the proxy primary channel by means of channel contention.

With reference to the first aspect to the second possible implementation manner, in a third possible implementation manner, the station transmits data by using the proxy primary channel in a new reservation time of the primary channel, Also includes:

The new version site triggers a process of accessing the primary channel after the reservation time of the primary channel ends; or

The new version site triggers a process of accessing the primary channel after the data transmission is completed.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation, the new version station triggers the flow of accessing the primary channel after the reservation time of the primary channel ends. Cheng also includes:

Receiving, by the new version site, a reserved time of the primary channel sent by the AP; or

The new version site learns the reserved time of the primary channel by acquiring NAV information of the primary channel.

With reference to any one of the first aspect to the fourth possible implementation manner, in a fifth possible implementation manner, when the new version site determines that the primary channel is reserved, the at least one associated with the primary channel is monitored. A slave channel also includes:

It is determined that the device that reserved the primary channel is an old version site.

With reference to any one of the first aspect to the fifth possible implementation manner, in a sixth possible implementation manner, the transmitting, by the new version site by using the proxy primary channel, includes:

The data is transmitted over the proxy primary channel by means of fixed channel bonding or non-contiguous channel bonding.

A second aspect of the embodiments of the present invention provides a multi-channel hybrid transmission method, including:

The AP reserves the primary channel and the total amount of resources for requesting the primary channel;

The AP monitors a proxy primary channel; wherein the proxy primary channel is any one of the slave channels associated with the primary channel;

If the proxy primary channel is in an idle state, the AP indicates that the new version station belongs to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.

With reference to the second aspect, in a first possible implementation, the total amount of resources includes one or more of a length of time, a bandwidth, and a space.

With reference to the second aspect or the first possible implementation manner, in a second possible implementation manner, the AP indicates that the new version site belongs to access the proxy master before the total resource of the primary channel is consumed. Channels and transmitting data over the proxy primary channel include:

The AP broadcasts a trigger frame carrying the device identifier to the new version of the site, where the trigger frame is used to indicate that the new version site corresponding to the device identifier accesses the proxy primary channel before the main channel resource is consumed. Data is transmitted over the proxy primary channel.

With reference to any one of the second aspect to the second possible implementation manner, in a third possible implementation manner, if the proxy primary channel is in an idle state, the AP indicates that the new version site belongs to Accessing the proxy primary channel and passing the proxy before the total amount of resources of the primary channel is consumed After the primary channel transmits data, it also includes:

After the total amount of resources of the primary channel is consumed, the AP instructs a new version of the site accessing the proxy primary channel to switch to the primary channel.

In combination with the second aspect to the third possible implementation manner, the fourth possible implementation manner further includes:

The AP broadcasts a beacon Beacon frame carrying a channel identifier to the associated new version site, where the Beacon frame is used to notify the new version station that the corresponding channel identifier is the proxy primary channel.

A third aspect of the embodiments of the present invention provides a site, including:

a monitoring module, configured to monitor at least one slave channel associated with the primary channel when the primary channel is reserved;

a selecting module, configured to select a slave channel from the at least one slave channel of the association as a proxy primary channel;

An access module, configured to initiate an access process to the proxy primary channel;

And a transmitting module, configured to transmit data through the proxy primary channel before the end of the reserved time of the primary channel, if the proxy primary channel is successfully accessed.

With reference to the third aspect, in a first possible implementation manner, the selecting module is specifically configured to:

And receiving, by the AP, a first control frame that carries the first slave channel identifier, and if detecting that the slave channel corresponding to the first slave channel identifier is idle, using the slave channel corresponding to the first slave channel identifier as a proxy primary channel ;or

Receiving, by the AP, a second control frame that carries the second slave channel identifier;

After receiving the first handover indication sent by the AP, using the slave channel corresponding to the second slave channel identifier as a proxy primary channel; or

Receiving, by the AP, a third control frame that carries multiple slave channel identifiers;

After receiving the second handover indication that is sent by the AP and carrying the third slave channel identifier, the slave channel corresponding to the third slave channel identifier is used as the proxy primary channel.

With reference to the third aspect, in a second possible implementation manner, the access module is specifically configured to:

Receiving a trigger frame sent by the AP, where the trigger frame carries a device identifier of the new version site;

Initiating an access procedure to the proxy primary channel according to the trigger frame; or

The access procedure to the proxy primary channel is initiated by channel contention.

With reference to any one of the third aspect to the second possible implementation, in a third possible implementation, the transmission module is further configured to:

After the reservation time of the primary channel ends, triggering the process of accessing the primary channel; or

After the data transmission is completed, the process of accessing the primary channel is triggered.

In conjunction with the third possible implementation of the third aspect, in a fourth possible implementation, the transmission module is further configured to:

Receiving a reserved time of the primary channel sent by the AP; or

The reservation time of the primary channel is obtained by acquiring NAV information of the primary channel.

With reference to any one of the third aspect to the fourth possible implementation, in a fifth possible implementation, the monitoring module is further configured to:

With reference to any one of the third aspect to the fifth possible implementation, in a sixth possible implementation, the transmission module is configured to:

A fourth aspect of the embodiments of the present invention provides a wireless access point, including:

a reservation module, configured to reserve a primary channel and apply for a total amount of resources of the primary channel;

a monitoring module, configured to monitor a proxy primary channel, where the proxy primary channel is any one of the slave channels associated with the primary channel;

And an indication module, configured to: if the proxy primary channel is in an idle state, instruct the associated new version station to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.

In conjunction with the fourth aspect, in a first possible implementation, the total amount of resources includes one or more of a length of time, a bandwidth, and a space.

With reference to the fourth aspect or the first possible implementation manner, in the second possible implementation manner, the indication module is specifically configured to:

And transmitting, by the new version site, a trigger frame carrying the device identifier, where the trigger frame is used to indicate that the new version site corresponding to the device identifier accesses the proxy primary channel before the main channel resource is consumed and passes the The proxy primary channel transmits data.

Combining any of the fourth aspect to the second possible implementation, in the third possible implementation In the current mode, it also includes:

And a switching module, configured to: after the total amount of resources of the primary channel is consumed, instructing a new version of the site accessing the proxy primary channel to switch to the primary channel.

With reference to any one of the fourth aspect to the third possible implementation manner, in a fourth possible implementation manner, the method further includes:

And a notification module, configured to broadcast, to the associated new version site, a beacon Beacon frame carrying a channel identifier, where the Beacon frame is used to notify the new version station that the corresponding channel identifier is a proxy primary channel.

A fifth aspect of the embodiments of the present invention provides a station, including a memory and a processor, where the memory stores program code, and the processor calls the program code to perform the following steps:

Monitoring, when the primary channel is reserved, listening to at least one secondary channel associated with the primary channel;

Selecting a slave channel from the at least one slave channel of the association as a proxy primary channel;

Initiating an access procedure to the proxy primary channel;

If the proxy primary channel is successfully accessed, the new version site transmits data through the proxy primary channel before the reservation time of the primary channel ends.

With reference to the fifth aspect, in a possible implementation manner of the first, the selecting, by the at least one selected channel from the associated channel, the proxy channel as the proxy primary channel includes:

And receiving, by the AP, a first control frame that carries the first slave channel identifier, and if the new version station detects that the slave channel corresponding to the first slave channel identifier is in an idle state, the corresponding slave channel identifier is corresponding to the slave The channel acts as the proxy primary channel; or

With reference to the fifth aspect, in a possible implementation manner of the second, the initiating the proxy main channel access process includes:

With reference to any one of the fifth aspect to the second possible implementation manner, in a third possible implementation manner, the transmitting in the new reserved time of the primary channel by using the proxy primary channel The data also includes:

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, after the reservation time of the primary channel ends, the process of triggering access to the primary channel is further included :

Receiving a reserved time of the primary channel sent by the AP; or

With reference to any one of the fifth aspect to the fourth possible implementation manner, in a fifth possible implementation manner, when determining that the primary channel is reserved, listening to at least one secondary channel associated with the primary channel ,Also includes:

With reference to any one of the fifth aspect to the fifth possible implementation manner, in a sixth possible implementation manner, the transmitting, by the new version site, the data by using the proxy primary channel includes:

A sixth aspect of the embodiments of the present invention provides a wireless access point, including a memory and a processor, where the memory stores program code, and the processor calls the program code to perform the following steps:

Reserving the primary channel and the total amount of resources requesting the primary channel;

Monitoring a proxy primary channel; wherein the proxy primary channel is any one of the slave channels associated with the primary channel;

If the proxy primary channel is in an idle state, indicating that the new version station belongs to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.

In conjunction with the sixth aspect, in a first possible implementation, the total amount of resources includes one or more of a length of time, a bandwidth, and a space.

With reference to the sixth aspect or the first possible implementation manner, in a second possible implementation manner, the AP indicates that the new version site to which the access belongs to the proxy master before the total resource consumption of the primary channel is consumed. Channels and transmitting data over the proxy primary channel include:

With reference to any one of the sixth aspect to the second possible implementation manner, in a third possible implementation manner, if the proxy primary channel is in an idle state, the AP indicates that the new version site belongs to After accessing the proxy primary channel and transmitting data through the proxy primary channel before the total amount of resources of the primary channel is consumed, the method further includes:

With reference to any one of the sixth aspect to the third possible implementation manner, in a fourth possible implementation manner, the method further includes:

Embodiments of the present invention have the following beneficial effects:

When there is a new version site or an old version site in the basic service set BSS, when the primary channel is reserved by the new version site or the old version site, the new version site in the BBS accesses the idle channel by using AP scheduling or autonomous competition. The slave channel of the idle state is used as the proxy primary channel, and the new version site accessing the proxy primary channel uses the proxy primary channel for data transmission, so that the new version site does not have to transmit data through the primary channel when the primary channel is reserved. The data is transmitted in parallel through the proxy main channel in the idle state, thereby realizing full-duplex transmission of the primary channel and the idle slave channel, thereby effectively improving the channel utilization.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the following description The drawings in the drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic flowchart of a multi-channel hybrid transmission method according to Embodiment 1 of the present invention;

2 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 2 of the present invention;

3 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 3 of the present invention;

4 is a timing diagram of a multi-channel hybrid transmission method according to Embodiment 4 of the present invention;

FIG. 5 is a timing diagram of a multi-channel hybrid transmission method according to Embodiment 5 of the present invention; FIG.

6 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 6 of the present invention;

7 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 7 of the present invention;

8 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 8 of the present invention;

9 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 9 of the present invention;

10 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 10 of the present invention;

11 is a sequence diagram of a multi-channel hybrid transmission method according to Embodiment 11 of the present invention;

FIG. 12 is a flowchart of a multi-channel hybrid transmission method according to Embodiment 12 of the present invention; FIG.

FIG. 13 is a schematic structural diagram of a station according to Embodiment 1 of the present invention; FIG.

FIG. 14 is a schematic structural diagram of a wireless access point according to Embodiment 2 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. The component can have, for example, one Signals of one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) through local and/or Remote processes to communicate.

Furthermore, various aspects or features of the present invention can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (eg, a CD (English: Compact Disk), a DVD (English: Digital Versatile Disk, Digital versatile discs, etc.), smart cards and flash memory devices (for example, EPROM (Erasable Programmable Read-Only Memory), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

The old version site in the embodiment of the present invention refers to a site supporting the previous protocol of IEEE 802.11ax. The old version site specifically transmits data through the primary channel, and the new version site refers to a site supporting the IEEE 802.11ax protocol to the above protocol. .

In the prior art, the old version site must transmit the data through the primary channel, and simultaneously utilize the channel bonding technology to pass the primary channel and the corresponding new transmission data. The current channel bonding technology can only adopt the continuous binding and the fixed binding. The way, the flexibility is not enough, the frequency utilization is insufficient.

In order to solve the above problem, the embodiment of the present invention provides a solution that when a primary channel is occupied, other new version sites can utilize the slave channel for data transmission. Specifically, the embodiment of the present invention provides a multi-channel hybrid transmission method, including: when a new version station detects that a primary channel is reserved, listening to at least one secondary channel associated with the primary channel; Selecting a slave channel from the associated at least one slave channel as a proxy primary channel; the new version site initiates an access procedure to the proxy primary channel; if the new version site successfully accesses the proxy primary channel The new version site transmits data through the proxy primary channel before the total amount of resources of the primary channel is consumed.

According to the technical solution provided by the embodiment of the present invention, when a new version site or an old version site exists in the basic service set BSS, when the primary channel is reserved by the new version site or the old version site, the new version site in the BBS adopts AP scheduling or self-competition. Mode to access the idle channel from the idle state The slave channel acts as the proxy primary channel, and the new version site accessing the proxy primary channel uses the proxy primary channel for data transmission, so that the new version site does not have to transmit data through the primary channel when the primary channel is reserved, and can pass the idle state. The proxy main channel transmits data in parallel, thereby realizing full-duplex transmission of the primary channel and the idle slave channel, thereby effectively improving channel utilization.

In a specific implementation process, the AP notifies the BSS of the internal version of the site proxy proxy channel identification channel, the proxy primary channel is one of the slave channels associated with the primary channel, and the new version site in the BSS listens to the primary channel when the primary channel is another site (new When the version site or the old version site is reserved, the new version site continues to monitor whether the designated proxy primary channel is idle. If yes, the new version site initiates the process of accessing the primary channel of the proxy, and the access mode can adopt the AP scheduling. Or access in autonomously competitive manner. If the new version of the site successfully accesses the proxy primary channel, the new version of the site transmits data through the primary channel during the reserved time of the primary channel. Wherein, during the reserved time of the primary channel, multiple new version sites may access the proxy primary channel in turn and use the proxy primary channel for data transmission.

In addition, the present invention further provides a multi-channel hybrid transmission apparatus comprising: a monitoring module, configured to detect at least one slave channel associated with the primary channel when the primary channel is reserved; and a selection module for Determining at least one slave channel from the channel as a proxy primary channel; an access module, configured to initiate an access procedure to the proxy primary channel; and a transmission module, configured to successfully access the proxy primary channel, Data is transmitted over the proxy primary channel before the end of the reservation time of the primary channel.

Furthermore, the present invention also provides a multi-channel access device comprising a processor and a memory, wherein the memory stores program code, and the processor calls the program code stored in the memory to perform the following operation: detecting that the primary channel is Reserving, monitoring at least one slave channel associated with the primary channel; selecting one slave channel from the associated at least one slave channel as a proxy primary channel; initiating an access procedure to the proxy primary channel; Accessing the proxy primary channel, and transmitting data through the proxy primary channel before the end of the reserved time of the primary channel.

The above method and apparatus will be described in detail below with reference to specific embodiments. In the following embodiments, the new version site refers to a site supporting IEEE 802.11ax and above protocols, and the old version site refers to a site supporting IEEE 802.11ax following protocols, such as IEEE 802.11a, IEEE 802.11b, IEEE. Sites such as 802.11n. The new version site is any new version site within the BSS to which the AP belongs. The primary transmission indicates the use of the primary channel for data transmission, and the secondary transmission indicates the use of the secondary channel for data transmission.

The embodiment of the present invention provides a multi-channel access method that can solve the above technical problem. Referring to FIG. 1, the method includes:

S101. The new version station monitors at least one slave channel associated with the primary channel when detecting that the primary channel is reserved.

Specifically, the BSS includes an AP and multiple sites, and the AP and the multiple sites acquire the usage rights of the primary channel in a competitive manner, occupy the primary channel for a period of time, and transmit data within the occupied time period. For TXOP (English: Transmission Opportunity, transmission opportunity). The method for reserving the primary channel by the station may be: when the station monitors that the primary channel is in an idle state, triggering a fallback process, and after the ending of the retreating process, requesting a reserved time of the primary channel, that is, a TXOP. The channel contention method of the site may be a channel competition mode such as a DCF (Distributed Coordination Function) or an EDCA (Enhanced Distributed Channel Access), or other methods, and the present invention is not limited. . The BSS includes a new version site and an old version site. When the new version site monitors that the primary channel is busy, it knows that the primary channel is reserved by other sites, and the site reserved for the primary channel may be a new version site or an old version site. The new version site listens to at least one slave channel associated with the primary channel.

S102. The new version station selects one slave channel as the proxy primary channel from the at least one associated channel of the association.

Specifically, the new version site selects a new one from the new one as the proxy primary channel, and the new version site selects the proxy primary channel. The method may be: the AP notifies each BSS by sending a Beacon frame carrying the slave channel identifier. The new version of the site acts as a slave channel to the proxy primary channel.

S103. The new version site initiates an access procedure for the proxy primary channel.

Specifically, the new version of the site initiates an access procedure to the proxy primary channel. If the access procedure is the AP scheduling mode, the AP instructs a new version of the site to access the proxy primary channel, if the new version of the site is indicated by the AP. The new version of the site can access the proxy primary channel; if the access process adopts autonomous competition, for example, the new version of the site sends the AP to the RTS frame, and after receiving the RTS frame, the AP returns the CTS frame to the new version of the site, This new version of the site can access the proxy primary channel.

S104. If the new version site successfully accesses the proxy primary channel, the new version site transmits data through the proxy primary channel before the reservation time of the primary channel ends.

Specifically, after the new version site successfully accesses the proxy primary channel, before the reserved time of the primary channel ends, The uplink data or the downlink data is transmitted through the proxy primary channel. The reserved time of the primary channel may be notified by the AP to the new version of the site.

It can be understood that S103 and S104 can be repeatedly executed. After the current new version of the site accesses the proxy main channel and uses the proxy main channel to transmit the target data, the current new version of the site releases the proxy master during the reserved time of the primary channel. After the preset time length, the other new version sites can access the proxy main channel again through the AP scheduling or autonomous competition and use the proxy main channel to transmit the target data. After the target data transmission is completed, the proxy main channel is released again. By analogy, until the reservation time of the primary channel ends, the access procedure to the proxy primary channel is no longer initiated.

When implementing the embodiment of the present invention, when the primary channel is reserved by the new version site or the old version site, the new version site accesses the idle channel by using AP scheduling or autonomous competition, and the idle channel is used as the proxy primary channel. The new version of the station accessing the proxy main channel uses the proxy main channel for data transmission, so that the new version of the station does not have to transmit data through the primary channel when the primary channel is reserved, and can transmit data in parallel through the proxy main channel in the idle state. Thus, full-duplex transmission of the primary channel and the idle secondary channel is achieved, thereby effectively improving channel utilization.

Optionally, in some embodiments of the present invention, the new version site selects one slave channel as the proxy primary channel from the associated at least one slave channel:

Optionally, in some embodiments of the present invention, the process of initiating access to the proxy primary channel by the new version site includes:

The new version site initiates an access procedure to the proxy primary channel by means of channel contention; or.

Optionally, in some embodiments of the present invention, the station transmits data by using the proxy primary channel in a new reservation time of the primary channel, and further includes:

Optionally, in some embodiments of the present invention, after the reservation time of the primary channel ends, the new version site triggers a process of accessing the primary channel, and further includes:

Optionally, in some embodiments of the present invention, when the new version site determines that the primary channel is reserved, listening to the at least one secondary channel associated with the primary channel, the method further includes:

Optionally, in some embodiments of the present invention, the transmitting, by the new version site, the data by using the proxy primary channel includes:

Embodiments of the present invention have the following beneficial effects:

FIG. 2 is a schematic flowchart of a multi-channel hybrid transmission method according to a second embodiment of the present invention. In the embodiment of the present invention, the method includes:

S201. The AP reserves a primary channel and a total amount of resources for requesting the primary channel.

Specifically, the AP reserves the primary channel by means of channel contention. The method for the AP to reserve the primary channel may be: when the AP monitors that the primary channel is in an idle state, the AP triggers the rollback process, and after the backoff process ends, the application is performed. The reserved time of the channel, ie TXOP. The channel competition method of the AP may be a channel competition mode such as a DCF (Distributed Coordination Function) or an EDCA (Enhanced Distributed Channel Access), or other methods, and the present invention is not limited. .

After obtaining the usage right of the primary channel, the total amount of resources of the primary channel is requested, and the total amount of resources includes one or more of occupation time, frequency bandwidth, and space of the primary channel.

S202. The AP monitors the proxy primary channel, where the proxy primary channel is any one of the slave channels associated with the primary channel.

S203. If the proxy primary channel is in an idle state, the AP indicates that the new version station belongs to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.

Optionally, the total amount of resources includes one or more of a length of time, a bandwidth, and a space.

Optionally, the AP indicates that the new version station belongs to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed:

Optionally, if the proxy primary channel is in an idle state, the AP indicates that the new version station belongs to access the proxy primary channel and passes the proxy master before the total resource consumption of the primary channel is consumed. After the channel transmits data, it also includes:

Optionally, the multi-channel hybrid transmission method further includes:

Embodiments of the present invention, when the primary channel is reserved by a new version site or an old version site, the new version The station accesses the idle channel by means of AP scheduling or autonomous competition, and the slave channel of the idle state is used as the proxy primary channel, and the new version of the station that accesses the proxy primary channel uses the proxy primary channel for data transmission. When the primary channel is reserved, the station does not have to transmit data through the primary channel, and can transmit data in parallel through the proxy primary channel in the idle state, thereby realizing full-duplex transmission of the primary channel and the idle secondary channel, thereby effectively improving the channel. Utilization rate.

FIG. 3 is a timing diagram of a multi-channel hybrid transmission method according to a second embodiment of the present invention. In the embodiment of the present invention, an AP detects whether a new version site and an old version site exist in the BSS, and if yes, the AP Broadcasting the Beacon frame carrying the channel identifier to the new version site in the BSS, to notify the new version station in the BSS that when the primary channel is reserved, accessing the proxy primary channel corresponding to the channel identifier and transmitting data by using the proxy primary channel, data transmission Upon completion, the AP instructs the new version of the site to switch back to the primary channel. The multi-channel hybrid transmission method specifically includes:

S301: The AP identifies whether a new version site and an old version site exist in the BSS. If yes, the AP broadcasts a Beacon frame carrying the channel identifier to the new version site in the BSS, where the Beacon frame is used to notify the new version of the site channel identifier in the BSS. The slave channel is the proxy primary channel. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S302: The new version site in the BSS listens to the primary channel, and if the primary channel is reserved, acquires the TXOP of the primary channel (ie, the reserved time), and the new version site listens to the proxy primary channel.

S303. The AP broadcasts a Trigger frame to the new version of the site in the BSS. The Trigger frame carries a device identifier that allows access to the primary channel of the proxy, and is used to indicate a new version of the site access proxy primary channel corresponding to the device identifier. Among them, the new version of the site within the BSS can also access the proxy primary channel in autonomously competitive manner.

S304. After successfully accessing the proxy primary channel, the new version of the site performs data transmission with the AP through the proxy primary channel. The specific new version of the site can perform data transmission by means of channel bonding, that is, on the basis of the proxy main channel, the slave channel of the idle state is continuously reserved, and the channel is bound by the proxy primary channel and the reserved slave channel. Data transmission, wherein the reserved slave channel may be a non-contiguous slave channel, and the reserved slave channel may not be a fixed slave channel.

S305. Before the end of the TXOP of the primary channel, S303 and S304 may be repeatedly executed. Among them, the Trigger frame can be integrated in the ACK frame.

After the data transmission of the new version site is completed, the AP instructs the new version site to switch back to the primary channel; or the AP carries the remaining lifetime of the primary channel in the Trigger frame, and the new version site is based on the main The remaining existence time of the channel, the new version site automatically switches back to the primary channel when the remaining existence time is reached; or the new version station receives the TXOP of the primary channel sent by the AP, calculates the remaining lifetime of the primary channel according to the TXOP of the primary channel, and arrives The new version of the site automatically switches back to the primary channel when there is time remaining.

Exemplarily, the primary channel associates five slave channels, namely, slave channel 1, slave channel 2, slave channel 3, slave channel 4, and slave channel 5. The AP specifies that slave channel 2 is the proxy primary channel, and the AP detects the presence of the BSS. After the new version site and the old version site, the Beacon frame carrying the channel identifier from channel 2 is broadcast to the new version site in the BSS, and the new version site in the BSS monitors the state of the primary channel, and when the primary channel is reserved, the primary channel is acquired. The TXOP, AP or new version of the station listens to the status of the slave channel 2. If the slave channel 2 is idle, the new version of the station accesses the slave channel 2 through the AP scheduling or contention mode, and uses the slave channel 2 for uplink data transmission or Downstream data transmission. When channel 3 and slave channel 5 are idle, the new version station performs uplink or downlink data transmission through the proxy primary channel (from channel 2), from channel 3, and from channel 5. When the TXOP of the primary channel is received, the new version of the site switches back to the primary channel.

4 is a timing diagram of a multi-channel hybrid transmission method according to a fourth embodiment of the present invention. The difference between the embodiment of the present invention and the third embodiment is that only one data packet transmission is performed in the primary transmission, instead of Transfer within TXOP. The multi-channel hybrid transmission method of the embodiment of the present invention specifically includes:

S401: The AP identifies whether there is a new version site and an old version site in the BSS. If yes, the AP broadcasts a Beacon frame carrying the channel identifier to the new version site in the BSS, where the Beacon frame is used to notify the new version of the station channel identifier in the BSS. The slave channel is the proxy primary channel. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S402. The new version site in the BSS listens to the primary channel, and if the primary channel is reserved, acquires the TXOP of the primary channel (ie, the reserved time), and the new version site listens to the proxy primary channel.

S403. The AP broadcasts a Trigger frame to the new version site in the BSS, and the Trigger frame carries the permission. The device identifier of the primary channel of the access proxy is used to indicate the new version of the site access proxy primary channel corresponding to the device identifier. Among them, the new version of the site within the BSS can also access the proxy primary channel in autonomously competitive manner.

S404: After successfully accessing the proxy primary channel, the new version of the site performs data transmission with the AP through the proxy primary channel. The specific new version of the site can perform data transmission by means of channel bonding, that is, on the basis of the proxy main channel, the slave channel of the idle state is continuously reserved, and the channel is bound by the proxy primary channel and the reserved slave channel. Data transmission, wherein the reserved slave channel may be a non-contiguous slave channel, and the reserved slave channel may not be a fixed slave channel.

S405. Before the end of the TXOP of the primary channel, S303 and S304 may be repeatedly executed.

Among them, the Trigger frame can be integrated in the ACK frame.

After the data transmission of the new version site is completed, the AP instructs the new version site to switch back to the primary channel; or the AP carries the remaining lifetime of the primary channel in the Trigger frame, and the new version site arrives at the remaining time according to the remaining existence time of the primary channel. The new version site automatically switches back to the primary channel when there is time; or the new version site receives the TXOP of the primary channel sent by the AP, calculates the remaining lifetime of the primary channel according to the TXOP of the primary channel, and automatically switches the new version site when the remaining lifetime is reached. Go back to the main channel.

Referring to FIG. 5, a timing diagram of a multi-channel transmission method according to a fifth embodiment of the present invention is provided. In the embodiment of the present invention, a CTS frame type carries a handover indication manner, and data packets transmitted by the primary device may be concurrently transmitted. In the transmission, the new version of the site uses the spontaneous backoff access proxy primary channel, and uses the non-contiguous information binding mode to transmit when using the proxy primary channel for transmission. In the embodiment of the present invention, the multi-channel transmission method specifically includes:

S501: The AP identifies whether a new version site and an old version site exist in the BSS. If yes, the AP broadcasts a Beacon frame carrying the channel identifier to the new version site in the BSS, and the Beacon frame is used to notify The slave channel corresponding to the new version of the site channel identifier in the BSS is the proxy primary channel. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S502: The AP detects whether the primary channel of the proxy is in an idle state when determining that the primary channel is reserved (preferably reserved by an old version site).

S503. If the proxy primary channel is in an idle state, the AP broadcasts a CSS+Switch frame to the proxy new version site in the BSS, and sets a status flag in the CSS+Switch frame to indicate whether the new version site switches to the proxy primary channel, for example, : When the Order field in the CSS+Switch frame is set to 1, it means that the new version of the site needs to be switched to the proxy primary channel.

S504: The new version site in the BSS accesses the proxy primary channel by using the RTS/CTS mode, and after successfully accessing the proxy primary channel, performs uplink or downlink data transmission through the proxy primary channel during the reserved time of the primary channel.

S505. After the data transmission ends, the AP instructs the new version site to switch back to the primary channel.

For example, the AP uses the ACK+Switch frame to notify the new version of the site switching on the primary channel. When the Order field in the ACK+Switch frame is set to 1, it indicates that the new version of the site is switched to the primary channel; in the ACK+Switch frame When the Order field is set to 0, it indicates that the new version of the site continues to work on the proxy primary channel.

The format of the CTS+Switch/ACK+Switch frame is shown in Figure 5a. Currently available fields are three 1-bit fields: More Data, Protected Frame, and Order. In this scheme, the Order field is enabled, and the Order field in the CTS frame is set to notify the new version site to switch to work on the proxy primary channel. The Order field in the ACK frame is set to indicate whether the new version site performs the switching of the proxy primary channel. If the order field is set to "1", it indicates that the new version of the site switches to the primary channel; set to "0", indicating that the new version of the site continues to work on the proxy primary channel.

6 is a timing diagram of a multi-channel transmission method according to a sixth embodiment of the present invention. In the embodiment of the present invention, the new version of the site access proxy main channel adopts an AP scheduling manner.

S601: The AP identifies whether a new version site and an old version site exist in the BSS. If yes, the AP broadcasts a Beacon frame carrying the channel identifier to the new version site in the BSS.

Specifically, the Beacon frame is used to notify the slave channel corresponding to the new version site channel identifier in the BSS as the proxy primary channel. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S602. When determining that the primary channel is reserved (preferably reserved by the old version site), the AP detects whether the primary channel of the proxy is in an idle state.

S603. If the proxy primary channel is in an idle state, the AP broadcasts a CSS+Switch frame to the proxy new version site in the BSS, and sets a status flag in the CSS+Switch frame to indicate whether the new version site switches to the proxy primary channel, for example, : When the Order field in the CSS+Switch frame is set to 1, it means that the new version of the site needs to be switched to the proxy primary channel.

S604: The AP broadcasts a Trigger frame carrying the device identifier to the new version site in the BSS, and the new version site corresponding to the device identifier is allowed to access the proxy main channel, and after the new version site corresponding to the device identifier successfully accesses the proxy main channel, During the reserved time of the primary channel, uplink or downlink data transmission is performed through the proxy primary channel.

S605. After the data transmission ends, the AP instructs the new version site to switch back to the primary channel; for example, the AP notifies the new version of the site switching on the primary channel by using an ACK+Switch frame, and the Order field in the ACK+Switch frame is set to At 1 o'clock, the new version site is instructed to switch to the primary channel; when the Order field in the ACK+Switch frame is set to 0, the new version site is instructed to continue working on the proxy primary channel.

FIG. 7 is a timing diagram of a multi-channel hybrid transmission method according to a seventh embodiment of the present invention. In the embodiment of the present invention, an AP notifies a new version of a site in a BSS that multiple proxy primary channels are set. The AP needs to select a target proxy primary channel from a plurality of proxy primary channels according to certain conditions. In the embodiment of the present invention, the multi-channel hybrid transmission method includes:

S701: The AP identifies whether a new version site and an old version site exist in the BSS. If yes, the AP broadcasts a Beacon frame carrying multiple channel identifiers to the new version site in the BSS, and the Beacon frame is used to notify the new version site channel in the BSS. The corresponding multiple slave channels are identified as alternate proxy primary channels. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S702. When determining that the primary channel is reserved (preferably reserved by an old version site), the AP determines a secondary channel that is in an idle state among the plurality of secondary channels.

S703: The AP selects, as the target proxy primary channel, the slave channel with the largest guard interval from the primary channel from the slave channels in the idle state.

S704. The AP uses the CTS+Switch frame to notify the new version of the site in the BSS to switch to the target proxy primary channel. For example, the Order field in the CTS+Switch frame indicates whether the new version of the site device switches to the proxy primary channel, and the Bitmap composed of the More Data field and the Protected Frame field indicates the channel identifier of the target proxy primary channel. Specifically, when the Order field of the CTS+Switch frame is set to 1, it indicates that the new version site switches to the proxy primary channel; the More Data field is set to 0, and when the Protected Frame field is set to 1, the AP selects the selected slave channel 2 as the target proxy. Main channel.

S705: The new version site in the BSS accesses the target proxy primary channel by means of RTS/CTS, and the new version site that successfully accesses the target proxy primary channel transmits data through the target proxy primary channel during the reserved time of the primary channel.

S706. After the data transmission ends, the AP instructs the new version site to switch back to the primary channel; for example, the AP notifies the new version of the site switching on the primary channel by using an ACK+Switch frame, and the Order field in the ACK+Switch frame is set to At 1 o'clock, the new version site is instructed to switch to the primary channel; when the Order field in the ACK+Switch frame is set to 0, it indicates that the new version site continues to operate on the target proxy primary channel.

The format of the CTS+Switch/ACK+Switch frame is shown in Figure 5a. Currently available fields are three 1-bit fields: More Data, Protected Frame, and Order. In this scheme, the Order field is enabled, and the Order field in the CTS frame is set to notify the new version site to switch to work on the proxy primary channel. Set the Order field in the ACK frame to indicate whether the new version site performs the proxy primary channel cut. change. If the order field is set to "1", it indicates that the new version of the site switches to the primary channel; set to "0", indicating that the new version of the site continues to work on the proxy primary channel. The More Data field and the Protected Frame field form a mapping relationship with different alternate proxy primary channels in the form of a Bitmap, and the new version site can determine the target proxy primary channel according to different Bitmap values.

FIG. 8 is a timing diagram of a multi-channel hybrid transmission method according to an eighth embodiment of the present invention. In the embodiment of the present invention, a new version site accesses a proxy primary channel by means of AP scheduling, and is in a primary channel. Data is transmitted through the proxy primary channel during the reservation time. The multi-channel hybrid transmission method of the embodiment of the present invention specifically includes:

S801. The AP identifies whether a new version site and an old version site exist in the BSS. If yes, the AP broadcasts a Beacon frame carrying multiple channel identifiers to the new version site in the BSS.

Specifically, the Beacon frame is used to notify the multiple slave channels corresponding to the new version site channel identifier in the BSS as the alternate proxy primary channel. The AP can identify the new version site and the old version site according to the device type identifier carried in the frame sent by the site.

S802. The AP determines, when the primary channel is reserved (preferably reserved by the old version site), the slave channel in the plurality of secondary channels that is in an idle state.

S803. The AP selects, as the target proxy primary channel, the slave channel with the largest guard interval from the primary channel from the idle channel.

S804. The AP uses the CTS+Switch frame to notify the new version of the site in the BSS to switch to the target proxy primary channel.

For example, the Order field in the CTS+Switch frame indicates whether the new version of the site device switches to the proxy primary channel, and the Bitmap composed of the More Data field and the Protected Frame field indicates the channel identifier of the target proxy primary channel. Specifically, when the Order field of the CTS+Switch frame is set to 1, it indicates that the new version site switches to the proxy primary channel; the More Data field is set to 0. When the Protected Frame field is set to 1, it indicates that the slave channel selected by the AP is the target proxy primary channel.

S805: The AP broadcasts a Trigger frame carrying the device identifier to the new version site in the BSS, and the new version site corresponding to the device identifier is allowed to access the target proxy primary channel, and after the new version site corresponding to the device identifier successfully accesses the target proxy primary channel, In the reserved time of the primary channel, uplink or downlink data transmission is performed through the target proxy primary channel.

S806. After the data transmission ends, the AP instructs the new version site to switch back to the primary channel.

For example, the AP uses the ACK+Switch frame to notify the new version of the station to switch back to the primary channel. When the Order field in the ACK+Switch frame is set to 1, it indicates that the new version of the station switches to the primary channel; in the ACK+Switch frame When the Order field is set to 0, it indicates that the new version of the site continues to work on the target proxy primary channel.

FIG. 9 is a timing diagram of a multi-channel hybrid transmission method according to a ninth embodiment of the present invention. In the embodiment of the present invention, an AP selects multiple slave channels as alternate proxy primary channels, and each proxy primary channel With different priorities, the AP selects the slave channel with the highest idle state and the highest priority as the target proxy primary channel when the primary channel is occupied.

Embodiment 9 is similar to Embodiment 4. It should be noted that, in the ninth embodiment, in order to avoid the problem that the secondary transmission cannot be triggered when the only proxy primary channel is in a busy state, the AP notifies the new version of the site in the BSS to set multiple proxy primary channels through the Beacon frame. The proxy primary channels are sorted by priority. The new version site monitors the status of the primary channel. Once the primary channel is busy, the new version station sequentially selects the busy status of the multiple primary channels, and selects the idle primary channel with the highest priority as the target primary channel. The new version of the site within the BSS waits for the AP's transmit Trigger frame to access the target proxy primary channel. It should be noted that the mode in which the new version of the site in the BSS accesses the target proxy primary channel is not allowed to adopt autonomous competition (for example, RTS/CTS mode). This is because the AP and the new version of the site may have inconsistent channel conditions, if the new version of the site is spontaneous Sending may cause interference to other hidden nodes. Nevertheless, in the future high-density deployment of wireless network scenarios, the possibility of such inconsistency will be smaller and smaller, which is advantageous for this embodiment.

FIG. 10 is a timing diagram of a multi-channel hybrid transmission method according to a tenth embodiment of the present invention. In the embodiment of the present invention, when a station reserves a primary channel, a two-dimensional time-frequency resource of the primary channel is set. In the embodiment of the present invention, the indication method of the proxy primary channel may be: a fixed indication in the Beacon frame, an indication in the CTS frame, a mapping indication in the Beacon frame, a priority layered indication of the Beacon frame, or other indication manner, and the present invention does not limit. The primary transmission according to the embodiment of the present invention refers to data transmission through a primary channel, and the secondary transmission refers to data transmission through a secondary channel.

The main transmission process is as follows:

S1001: The AP acquires the usage right of the primary channel.

The AP reserves the primary channel by means of channel contention. The method for the AP to reserve the primary channel may be: when the AP monitors that the primary channel is in an idle state, the AP triggers the rollback process, and after the backoff process ends, the application for the primary channel is requested. Leave time, TXOP. The channel competition method of the AP may be a channel competition mode such as a DCF (Distributed Coordination Function) or an EDCA (Enhanced Distributed Channel Access), or other methods, and the present invention is not limited. .

S1002: The total amount of two-dimensional time-frequency resources that the AP applies for the primary channel. The total amount of time-frequency resources specifies the occupation time and frequency bandwidth of the primary channel.

Specifically, during the occupation time of the primary channel, only the AP and the benefiting station can access the primary channel and transmit data through the primary channel, and the remaining stations cannot use the primary channel for access and transmission. The method of controlling the access and transmission of the primary channel to the primary channel may be implemented by setting a NAV or a control frame. The manner in which the AP specifies the benefit of the site may be: the AP specifies the ID of the accessible site, and the AP specifies the group that can access the site. The group number and AP specify the restrictions that can be accessed to the site.

The benefiting site may be dynamically changed during the occupation time of the primary channel, and the change mode may be: the AP actively changes the designated site, the AP actively triggers uplink and downlink access and transmission, and the site actively triggers uplink and downlink access and transmission.

S1003. The primary transmission process may be formed by cascading a plurality of access transmission units.

Specifically, the access transmission unit refers to a primary access and transmission process within the primary channel. There may be several access transmission units in the main transmission. After the current access transmission unit is completed, the next access transmission unit is initiated after the preset duration, and the preset duration may be SIFS, DIFS or PIFS.

The access transmission unit may be an AP-triggered downlink transmission, an AP-triggered downlink transmission, a site-triggered uplink transmission, or a site-triggered downlink transmission. The frequency bandwidth occupied by each access transmission unit in the primary channel may be the same or different, and varies according to the required size.

S1004: When the time-frequency resource of the primary channel is consumed, the AP releases the primary channel. The time-frequency resource consumption includes the occupation time of reaching the primary channel or the frequency bandwidth of the primary channel is exhausted. It can be understood that the AP can also release the primary channel in advance before the time-frequency resource consumption of the primary channel is completed.

The transmission process is as follows:

S1005: The slave access may be performed in each access transmission unit of the primary channel, and the manner of the primary channel of the access proxy may be AP scheduling or autonomous competition. The transmission is composed of at least one access transmission unit, and the transmitted access transmission unit may be cascaded or not cascaded, and at the end of the corresponding primary transmission access transmission unit, the access transmission unit from the transmission also corresponds End. The frequency guard interval between the primary channel and the proxy primary channel is dynamically spread to both sides depending on the bandwidth used by the primary transmission.

FIG. 11 is a timing diagram of a multi-channel hybrid transmission method according to an eleventh embodiment of the present invention. In the embodiment of the present invention, after obtaining the usage right of the primary channel, the AP applies for the total time-frequency resources of the primary channel. The total amount of time-frequency resources does not occupy the time and frequency bandwidth, and only the fixed time and frequency are fixed. The product of the rate bandwidth. The other steps are the same as those in the tenth embodiment, and are not described herein again.

FIG. 12 is a schematic flowchart diagram of a multi-channel hybrid transmission method according to an embodiment of the present invention. In the embodiment of the present invention, a plurality of access transmission units for primary transmission and secondary transmission in embodiments 10 and 11 are provided. Cascade. The AP obtains the usage right of the primary channel and applies for the total amount of time-frequency resources of the primary channel. The access transmission unit in the primary channel may be cascaded by the following methods:

S1201: The AP performs a contending primary channel process, obtains a usage right of the primary channel, and applies for a time-frequency resource of the primary channel, where the time-frequency resource is the occupied time and the bandwidth of the primary channel.

S1202: Set a timer Timer according to an occupation time of the primary channel, and reset an uplink transmission requirement (RAR) number Counter=0.

S1203. If the current transmission demand condition satisfies the downlink data transmission condition, execute S1206. Otherwise, execute S1204.

Specifically, the downlink data transmission condition is that the downlink demand quantity of the user is greater than a certain threshold, or the total downlink data with the transmission is greater than a certain threshold.

S1204. If the current transmission demand condition satisfies the uplink data transmission condition, execute S1205, otherwise execute S1207.

Specifically, the uplink data transmission condition is that the uplink demand of the user is greater than a certain threshold, or The total amount of uplink data to be transmitted is greater than a certain threshold.

S1205. Perform an uplink transmission process.

The uplink data transmission process includes an AP resource scheduling, an uplink data transmission, and an ACK feedback process. The uplink data transmission process can be performed by a conventional DCF method or by an OFDMA or MU-MIMO method.

S1206: Perform a downlink transmission process.

The downlink data transmission process includes: downlink channel quality measurement, downlink data transmission, and ACK feedback process. The downlink data transmission process can be performed by a conventional DCF method or by an OFDMA or MU-MIMO method.

S1207: When the current transmission demand condition does not satisfy the uplink data transmission condition and the downlink data transmission condition, determine whether the Counter exceeds the threshold. If yes, execute S1211, otherwise execute S1208.

S1208, Counter=Counter+1.

The S1209 and the AP initiate the collection of the number of uplink RARs, and the collection method may be performed by using a conventional DCF method or an OFDMA or MU-MIMO method.

S1210: Whether the timer expires. If yes, execute S1211, otherwise execute S1203.

S1211, releasing the main channel, and returning to S1201.

It should be noted that the foregoing manner may also be adopted for the cascading of access transmission units in the channel, and details are not described herein again. The order of S1203 and S1204 can be reversed.

FIG. 13 is a schematic structural diagram of a site according to an embodiment of the present invention. In the embodiment of the present invention, the site includes: a listening module 1301, a selecting module 1302, an access module 1303, and a transmitting module 1304.

The monitoring module 1301 is configured to monitor, when the primary channel is reserved, to listen to the primary channel. At least one slave channel.

Specifically, the BSS includes an AP and multiple sites, and the AP and the multiple sites acquire the usage rights of the primary channel in a competitive manner, occupy the primary channel for a period of time, and transmit data within the occupied time period. For TXOP (English: Transmission Opportunity, transmission opportunity). The method for reserving the primary channel may be: when the listening module 1301 detects that the primary channel is in an idle state, triggering a fallback process, and after the ending of the backoff process, requesting a reserved time of the primary channel, that is, a TXOP. The channel competition method may be a channel competition method such as a DCF (Distributed Coordination Function) or an EDCA (Enhanced Distributed Channel Access), and may be other methods, which are not limited in the present invention. The BSS includes a new version site and an old version site. When the new version site monitors that the primary channel is busy, it knows that the primary channel is reserved by other sites, and the site reserved for the primary channel may be a new version site or an old version site. The new version site listens to at least one slave channel associated with the primary channel.

The selecting module 1302 is configured to select one slave channel as the proxy primary channel from the at least one associated channel of the association.

Specifically, the selecting module 1302 selects a new one as the proxy primary channel from the at least one new one, and the selecting module 1302 selects the proxy primary channel. The method may be: the AP notifies each BSS by transmitting a Beacon frame carrying the slave channel identifier. The new version of the site acts as a slave channel to the proxy primary channel.

The access module 1303 is configured to initiate an access procedure to the proxy primary channel.

Specifically, the access module 1303 initiates an access procedure to the proxy primary channel. If the access procedure is the AP scheduling mode, the AP instructs a new version of the site to access the proxy primary channel. If the access process adopts autonomous competition, for example, the new version site sends the RTS frame to the AP, and the AP returns the CTS frame to the new version site after receiving the RTS frame. Then the new version of the site can access the proxy primary channel.

The transmitting module 1304 is configured to: if the proxy primary channel is successfully accessed, transmit data through the proxy primary channel before the end of the reserved time of the primary channel.

Specifically, after successfully accessing the proxy primary channel, before the end of the reserved time of the primary channel, the transmission module 1304 transmits uplink data or downlink data through the proxy primary channel. The reserved time of the primary channel may be notified by the AP to the new version of the site.

Optionally, the selecting module is specifically configured to:

Optionally, the access module is specifically configured to:

The optional transmission module is further configured to:

Receiving a reserved time of the primary channel sent by the AP; or

Optionally, the monitoring module is further configured to:

Optionally, the transmission module is configured to:

When an embodiment of the present invention is implemented, when a new version site or an old version site exists in the basic service set BSS, when the primary channel is reserved by the new version site or the old version site, the new version site in the BBS adopts AP scheduling or autonomous competition. The slave channel entering the idle state uses the slave channel of the idle state as the proxy primary channel, and the new version site accessing the proxy master channel uses the proxy primary channel for data transmission, so that the new version site does not have to be reserved when the primary channel is reserved. By transmitting data through the primary channel, data can be transmitted in parallel through the proxy primary channel in the idle state, thereby realizing full-duplex transmission of the primary channel and the idle secondary channel, thereby effectively improving channel utilization.

FIG. 14 is a schematic structural diagram of a wireless access point according to an embodiment of the present invention. In the embodiment of the present invention, the wireless access point includes a reservation module 1401, a listening module 1402, and an indication module 1403.

The reservation module 1401 is configured to reserve a primary channel and a total amount of resources for requesting the primary channel.

The monitoring module 1402 is configured to listen to the proxy primary channel; wherein the proxy primary channel is any one of the secondary channels associated with the primary channel.

The indicating module 1403 is configured to: if the proxy primary channel is in an idle state, instruct the associated new version station to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed. .

The optional total amount of resources includes:

One or more of length, bandwidth, and space.

The optional indicator module is specifically configured to:

The triggering frame of the device identifier is broadcasted to the new version of the site, and the triggering frame is used to indicate that the new version site corresponding to the device identifier accesses the proxy master before the main channel resource is consumed. The channel transmits data through the proxy primary channel.

Optional also includes:

Optionally, it also includes:

The embodiment of the present invention further provides a site. In the embodiment of the present invention, the site includes a processor, a memory, and a communication interface. The communication interface is used to communicate with an external device. The number of processors in the site may be one or more. In some embodiments of the invention, the processor, memory, and communication interface may be connected by a bus or other means. The site can be used to perform the method shown in Figure 1. For the meaning and examples of the terms involved in the embodiment, reference may be made to the corresponding embodiment of FIG. 1. I will not repeat them here.

Wherein, the program code is stored in the memory. The processor is used to call program code stored in the memory to perform the following operations:

Initiating an access procedure to the proxy primary channel;

If the proxy primary channel is successfully accessed, data is transmitted through the proxy primary channel before the reservation time of the primary channel ends.

In some embodiments of the invention, the processor performing to select a slave channel from the associated at least one slave channel as the proxy master channel comprises:

Receiving, by the AP, a first control frame that carries the first slave channel identifier, and if detecting that the slave channel corresponding to the first slave channel identifier is idle, the slave channel corresponding to the first slave channel identifier is used as a slave channel Proxy main channel; or

In some embodiments of the present invention, the executing, by the processor, the process of initiating access to the proxy primary channel includes:

Receiving a trigger frame sent by the AP, where the device identifier carried in the trigger frame is

In some embodiments of the present invention, the processor performs the data transmission by the proxy primary channel during the new reservation time of the primary channel, and further includes:

In some embodiments of the present invention, the processor performs a process of triggering access to the primary channel after the reservation time of the primary channel ends, and further includes:

Receiving a reserved time of the primary channel sent by the AP; or

In some embodiments of the present invention, the processor, when performing the determining that the primary channel is reserved, listening to the at least one secondary channel associated with the primary channel, further includes:

In some embodiments of the present invention, the processor performing data transmission through the proxy primary channel includes:

When an embodiment of the present invention is implemented, when a new version site or an old version site exists in the basic service set BSS, when the primary channel is reserved by the new version site or the old version site, the new version site in the BBS adopts AP scheduling or autonomous competition. The slave channel entering the idle state, the slave channel of the idle state is substituted The primary channel, the new version of the site accessing the proxy primary channel uses the proxy primary channel for data transmission, so that the new version of the site does not have to transmit data through the primary channel when the primary channel is reserved, and can be paralleled by the proxy primary channel in the idle state. The transmission of data enables full-duplex transmission of the primary channel and the idle secondary channel, thereby effectively improving channel utilization.

An embodiment of the present invention further provides a wireless access node, where the wireless access node includes a processor, a memory, and a communication interface. The communication interface is used to communicate with an external device. The number of processors in the site may be one or more. In some embodiments of the invention, the processor, memory, and communication interface may be connected by a bus or other means. The site can be used to perform the method shown in Figure 1. For the meaning and examples of the terms involved in the embodiment, reference may be made to the corresponding embodiment of FIG. 1. I will not repeat them here.

Wherein, the program code is stored in the memory. The processor is configured to call program code stored in the memory 62 for performing the following operations:

Specifically, the BSS includes an AP and multiple sites, and the AP and the multiple sites acquire the usage rights of the primary channel in a competitive manner, occupy the primary channel for a period of time, and transmit data within the occupied time period. For TXOP (English: Transmission Opportunity, transmission opportunity). The method for reserving the primary channel by the station may be: when the processor monitors that the primary channel is in an idle state, triggering a fallback process, and after the ending of the retreating process, requesting a reserved time of the primary channel, that is, a TXOP. The channel competition method of the processor may be a channel competition method such as a DCF (Distributed Coordination Function) or an EDCA (Enhanced Distributed Channel Access), or other methods, and the present invention does not limit. The BSS includes a processor and an old version processor. When the processor monitors that the primary channel is in a busy state, it knows that the primary channel is reserved by other processors, and the processor that reserves the primary channel may be a processor or an old version processor. At this point, the processor listens to at least one slave channel associated with the primary channel.

The processor selects a new one from the new one as the proxy primary channel, and the method for the processor to select the proxy primary channel may be: the AP transmits the Beacon frame carrying the slave channel identifier. Each processor in the BSS is known as a slave channel of the proxy primary channel.

The processor initiates an access procedure to the proxy primary channel. If the access procedure is an AP scheduling mode, the AP instructs a certain processor to access the proxy primary channel. If the processor is directed by the AP, the processor may The access agent primary channel; if the access process adopts autonomous competition, for example, the processor sends the AP to the RTS frame, and the AP returns the CTS frame to the processor after receiving the RTS frame, the processor can access the proxy master. channel.

After the processor successfully accesses the proxy primary channel, the uplink data or downlink data is transmitted through the proxy primary channel before the reserved time of the primary channel ends. The reserved time of the primary channel may be notified by the AP to the processor.

Optionally, in some embodiments of the present invention, the total amount of resources includes one or more of a length of time, a bandwidth, and a space.

Optionally, the process execution indication indicates that the new version station that accesses the proxy primary channel and transmits data through the proxy primary channel before the total resource consumption of the primary channel is consumed includes:

Optionally, the processor performs, if the proxy primary channel is in an idle state, indicating that the new version station belongs to access the proxy primary channel before the total resource consumption of the primary channel is consumed, and passes the After the agent primary channel transmits data, it is also used to execute:

After the total amount of resources of the primary channel is consumed, a new version of the station that accesses the proxy primary channel is switched to the primary channel.

Optionally, the processor is further configured to:

The beacon frame carrying the channel identifier is broadcast to the new version site to be notified, and the Beacon frame is used to notify the new version station that the corresponding channel identifier is the proxy primary channel.

When an embodiment of the present invention is implemented, when a new version site or an old version site exists in the basic service set BSS, when the primary channel is reserved by the new version site or the old version site, the new version site in the BBS adopts AP scheduling or autonomous competition. The slave channel entering the idle state uses the slave channel of the idle state as the proxy primary channel, and the new version site accessing the proxy master channel uses the proxy primary channel for data transmission, so that the new version site does not have to be reserved when the primary channel is reserved. By transmitting data through the primary channel, data can be transmitted in parallel through the proxy primary channel in the idle state, thereby realizing full-duplex transmission of the primary channel and the idle secondary channel. Loss, thus effectively improving the utilization of the channel.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above disclosure is only a preferred embodiment of the present invention, and of course, the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

Claims

A multi-channel hybrid transmission method, comprising:

When the new version site detects that the primary channel is reserved, it listens to at least one secondary channel associated with the primary channel;

The new version station selects one slave channel as the proxy primary channel from the at least one associated channel of the association;

The new version site initiates an access procedure to the proxy primary channel;

If the new version site successfully accesses the proxy primary channel, the new version site transmits data through the proxy primary channel before the reservation time of the primary channel ends.
The method of claim 1 wherein said selecting a new version of a station from said associated at least one slave channel as a proxy primary channel comprises:

The new version site receives the first control frame that is sent by the AP and carries the first slave channel identifier, and if the new version station detects that the slave channel corresponding to the first slave channel identifier is idle, the first slave station The slave channel corresponding to the channel identifier serves as the proxy primary channel; or

The new version site receives a second control frame that is sent by the AP and carries the second slave channel identifier;

After receiving the first handover indication sent by the AP, the new version station uses the slave channel corresponding to the second slave channel identifier as a proxy primary channel; or

The new version site receives a third control frame that is sent by the AP and carries multiple slave channel identifiers;

After receiving the second handover indication that is sent by the AP and carrying the third slave channel identifier, the new version station uses the slave channel corresponding to the third slave channel identifier as the proxy primary channel.
The method of claim 1, wherein the step of initiating access to the proxy primary channel by the new version site comprises:

The new version of the site receives the triggering frame sent by the AP, where the triggering frame carries the device identifier of the new version of the site;

The new version site initiates an access procedure to the proxy primary channel according to the trigger frame; or

The new version site initiates an access procedure to the proxy primary channel by means of channel contention.
The method according to any one of claims 1-3, wherein, in the new reservation time of the primary channel, the station transmits data through the proxy primary channel, further comprising:

The new version site triggers a process of accessing the primary channel after the reservation time of the primary channel ends; or

The new version site triggers a process of accessing the primary channel after the data transmission is completed.
The method of claim 4, wherein the new version of the site triggers the process of accessing the primary channel after the reservation time of the primary channel ends, and further includes:

Receiving, by the new version site, a reserved time of the primary channel sent by the AP; or

The new version site learns the reserved time of the primary channel by acquiring NAV information of the primary channel.
The method according to any one of claims 1-5, wherein the new version site determines that at least one slave channel associated with the primary channel is monitored when the primary channel is reserved, and further includes:

It is determined that the device that reserved the primary channel is an old version site.
The method according to any one of claims 1-6, wherein the transmitting of data by the new version site through the proxy primary channel comprises:

The data is transmitted over the proxy primary channel by means of fixed channel bonding or non-contiguous channel bonding.
A multi-channel hybrid transmission method, comprising:

The AP reserves the primary channel and the total amount of resources for requesting the primary channel;

The AP monitors a proxy primary channel; wherein the proxy primary channel is any one of the slave channels associated with the primary channel;

If the proxy primary channel is in an idle state, the AP indicates that the new version station belongs to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.
The method of claim 8 wherein said total amount of resources comprises: length of time, One or more of bandwidth and space.
The method according to claim 8 or 9, wherein the AP instructs the associated new version station to access the proxy primary channel and pass the proxy primary channel before the total amount of resources of the primary channel is consumed. Transferring data includes:

The AP broadcasts a trigger frame carrying the device identifier to the new version of the site, where the trigger frame is used to indicate that the new version site corresponding to the device identifier accesses the proxy primary channel before the main channel resource is consumed. Data is transmitted over the proxy primary channel.
The method according to any one of claims 8 to 10, wherein, if the proxy primary channel is in an idle state, the AP indicates that the new version of the station belongs to the total amount of resources of the primary channel. After accessing the proxy primary channel and transmitting data through the proxy primary channel, the method further includes:

After the total amount of resources of the primary channel is consumed, the AP instructs a new version of the site accessing the proxy primary channel to switch to the primary channel.
The method of any of claims 8-11, further comprising:

The AP broadcasts a beacon Beacon frame carrying a channel identifier to the associated new version site, where the Beacon frame is used to notify the new version station that the corresponding channel identifier is the proxy primary channel.
A site characterized by comprising:

a monitoring module, configured to monitor at least one slave channel associated with the primary channel when the primary channel is reserved;

a selecting module, configured to select a slave channel from the at least one slave channel of the association as a proxy primary channel;

An access module, configured to initiate an access process to the proxy primary channel;

And a transmitting module, configured to transmit data through the proxy primary channel before the end of the reserved time of the primary channel, if the proxy primary channel is successfully accessed.
The site of claim 13 wherein said selection module is specifically for:

And receiving, by the AP, a first control frame that carries the first slave channel identifier, and if detecting that the slave channel corresponding to the first slave channel identifier is idle, using the slave channel corresponding to the first slave channel identifier as a proxy primary channel ;or

Receiving, by the AP, a second control frame that carries the second slave channel identifier;

After receiving the first handover indication sent by the AP, using the slave channel corresponding to the second slave channel identifier as a proxy primary channel; or

Receiving, by the AP, a third control frame that carries multiple slave channel identifiers;

After receiving the second handover indication that is sent by the AP and carrying the third slave channel identifier, the slave channel corresponding to the third slave channel identifier is used as the proxy primary channel.
The site of claim 13, wherein the access module is specifically configured to:

Receiving a trigger frame sent by the AP, where the trigger frame carries a device identifier of the new version site;

Initiating an access procedure to the proxy primary channel according to the trigger frame; or

The access procedure to the proxy primary channel is initiated by channel contention.
The station according to any one of claims 13-15, wherein the transmission module is further configured to:

After the reservation time of the primary channel ends, triggering the process of accessing the primary channel; or

After the data transmission is completed, the process of accessing the primary channel is triggered.
The station according to claim 16, wherein the transmission module is further configured to:

Receiving a reserved time of the primary channel sent by the AP; or

The reservation time of the primary channel is obtained by acquiring NAV information of the primary channel.
The station according to any one of claims 13-17, wherein the monitoring module is further configured to:

It is determined that the device that reserved the primary channel is an old version site.
The station of any of claims 13-18, wherein the transmission module is configured to:

The data is transmitted over the proxy primary channel by means of fixed channel bonding or non-contiguous channel bonding.
A wireless access point, comprising:

a reservation module, configured to reserve a primary channel and apply for a total amount of resources of the primary channel;

a monitoring module, configured to monitor a proxy primary channel, where the proxy primary channel is any one of the slave channels associated with the primary channel;

And an indication module, configured to: if the proxy primary channel is in an idle state, instruct the associated new version station to access the proxy primary channel and transmit data through the proxy primary channel before the total resource consumption of the primary channel is consumed.
The access point of claim 20, wherein the total amount of resources comprises one or more of a length of time, a bandwidth, and a space.
The access point according to claim 21 or 22, wherein the indication module is specifically configured to:

And transmitting, by the new version site, a trigger frame carrying the device identifier, where the trigger frame is used to indicate that the new version site corresponding to the device identifier accesses the proxy primary channel before the main channel resource is consumed and passes the The proxy primary channel transmits data.
The access point according to any one of claims 20-22, further comprising:

And a switching module, configured to: after the total amount of resources of the primary channel is consumed, instructing a new version of the site accessing the proxy primary channel to switch to the primary channel.
The access point according to any one of claims 20 to 23, further comprising:

And a notification module, configured to broadcast, to the associated new version site, a beacon Beacon frame carrying a channel identifier, where the Beacon frame is used to notify the new version station that the corresponding channel identifier is a proxy primary channel.
A station comprising a storage and a processor, wherein the memory holds instructions for implementing the multi-channel hybrid transmission method of claims 1-7, the processor retrieving and executing the memory An instruction to implement multi-channel hybrid transmission as claimed in any of claims 1-7.
A wireless access point comprising a memory and a processor, wherein the memory stores instructions for implementing the multi-channel hybrid transmission method of claims 8-12, the processor retrieving and executing the The instructions in the memory implement the multi-channel hybrid transmission method according to any one of claims 8-12.