WO2019184735A1

WO2019184735A1 - Cascading ap communication method, wireless access point and storage medium

Info

Publication number: WO2019184735A1
Application number: PCT/CN2019/078347
Authority: WO
Inventors: 何俊飞
Original assignee: 华为技术有限公司
Priority date: 2018-03-30
Filing date: 2019-03-15
Publication date: 2019-10-03
Also published as: CN110324901A; CN110324901B

Abstract

Disclosed by the present invention are a cascading AP communication method, a wireless access point and a storage medium. The method comprises: a first AP communicates with a second AP by means of a first channel resource, wherein the second AP is an upstream network node of the first AP; and the first AP communicates, by means of a second channel resource, with a station STA connected to the first AP, wherein the first channel resource is different from the second channel resource. The problem that the cascading APs may conflict with each other in the process of receiving data and the cascading APs cannot communicate with the root APs and STAs can be avoided.

Description

Cascading AP communication method, wireless access point and storage medium

Technical field

The present invention relates to the field of communications technologies, and in particular, to a communication method, a wireless access point, and a storage medium for a contiguous wireless access point (AP).

Background technique

Wireless-Fidelity (Wi-Fi) technology has become a technology widely used for data transmission in home networks. However, in the home environment, the increase of data transmission distance and the increase of obstacles affecting data transmission, it is easy to increase the attenuation of data transmission signals in home Wi-Fi, resulting in a low data transmission rate and a "dead angle" of data transmission. And other issues. At present, users usually adopt a method of arranging multiple AP cascades in a home environment to improve the coverage of a home Wi-Fi wireless network, thereby solving problems such as a low data transmission rate and a "dead angle" of data transmission.

The method of arranging multiple APs in the home environment is to access the AP at the root AP and the site (English: station, STA), and then access the AP as a relay to assist data transmission between the root AP and the STA. Become a cascading AP. When the cascading AP communicates with the root AP and the STA, it can slice its own communication slot resources and communicate with the root AP and STA respectively. When communicating with the root AP, it acts as a virtual STA and acts as a virtual AP when communicating with the STA.

However, the cascading AP can only control its own slot resources for communication with that network device, but cannot control the time slots used by the root AP and STA communication. Therefore, when the root AP and the STA send data to the cascading AP at the same time, the cascading AP receives the data sent by the root AP and the STA simultaneously in one slot resource slice, so that the cascading AP generates a collision in the process of receiving data. As a result, the cascading APs cannot communicate with the root APs and STAs.

Summary of the invention

The present invention provides a communication method, a wireless access point, and a storage medium for a cascading AP, which can avoid the problem that a cascading AP can collide with the root AP and the STA.

In a first aspect, the present application provides a communication method of a cascading AP, including: a first AP communicating with a second AP by using a first channel resource, where the second AP is an upstream network node of the first AP. The first AP communicates with a STA accessing the first AP by using a second channel resource, where the first channel resource is different from the second channel resource.

In the embodiment of the present application, the first AP communicates with the second AP and the STA through different communication resources, and the data transmitted between the first AP and the second AP and the STA does not collide, thereby ensuring that the first AP can be normal. Communicate with connected devices.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before the first AP communicates with the second AP by using the first channel resource, the method further includes:

Determining, by the first AP, the first channel resource and the second channel resource;

Sending, by the first AP, a first message to the second AP, where the first message includes the first channel resource;

Receiving, by the first AP, a feedback message sent by the second AP;

When the feedback message indicates that the second AP accepts communication with the first AP through the first channel resource, the first AP sends a second packet including the second channel resource to the STA Message.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, when the feedback message indicates that the second AP does not accept the first channel resource and the When the first AP communicates, the feedback message includes a channel resource used by the second AP to communicate with the first AP or a second AP determined to communicate with the second AP. The characteristics of the channel resources, the method further includes:

When the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, the first AP updates the first channel resource according to the feedback message;

The first AP updates the second channel resource according to the updated first channel resource;

Sending, by the first AP, a third message that includes the updated second channel resource to the STA;

The first AP communicates with the first device that accesses the first AP by using the first channel resource, including:

The first AP communicates with the second AP by using the updated first channel resource;

The first AP communicates with the STA that accesses the first AP by using the second channel resource, including:

The first AP communicates with the STA by using the updated second channel resource.

With reference to the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first AP determines the first channel Resources and the second channel resources, including:

Determining, by the first AP, the first channel resource and the second channel resource according to a device attribute of the second AP and a device attribute of the STA; or

The first AP determines the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, before the first AP communicates with the first device that accesses the first AP by using the first channel resource, the method further includes:

Receiving, by the first AP, an indication message of the first device, where the indication information is used to indicate a channel resource used for communication with the first device or a feature of a channel resource used for communication with the second AP;

The first AP determines the first channel resource and the second channel resource according to the indication message.

With the first aspect or any one of the possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the first AP is connected to the first After the AP's STA communication, it also includes:

The first AP adjusts the first channel resource and the second channel resource;

The first AP communicates with the first device by using the adjusted first channel resource, and communicates with the second device by using the adjusted second channel resource.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the first AP adjusts the first channel resource and the second channel resource, including:

The first AP adjusts the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.

With reference to the first aspect, or any one of the possible implementation manners of the first aspect, in the seventh possible implementation manner of the first aspect, the first channel resource includes a spectrum resource and a spatial resource, and the second Channel resources include spectrum resources and/or space resources.

In a second aspect, the present application provides a wireless access point, including functional units for implementing the methods in the first aspect of the present application and the implementations of the first aspect.

In a third aspect, the application provides a wireless access point, including: one or more processors, a memory, and a communication interface;

The memory, the communication interface coupled to the one or more processors;

The memory is for storing computer program code, the computer program code comprising instructions for performing the first aspect or the first aspect when the one or more processors execute the instruction A communication method of a cascaded wireless access point according to any of the embodiments.

In a fourth aspect, an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform any of the first aspect or the first aspect. The communication method of the cascaded wireless access point described.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below.

1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

2 is a schematic flowchart of a method for communicating a cascading AP according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of still another method for communication of a cascading AP according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic block diagram of a wireless access point according to an embodiment of the present invention; FIG.

FIG. 5 is a schematic block diagram of still another wireless access point according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic block diagram of another wireless access point according to an embodiment of the present invention.

detailed description

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

The embodiment of the invention is used for a scenario in which an AP is cascaded in a home network. FIG. 1 is a network architecture to which an embodiment of the present invention is applied. As shown in Figure 1, AP1 is the root AP in the home network, and AP1 is directly connected to the network. AP2 is the cascading AP connected to AP1 and STA2. The connection between AP2 and AP1 can extend the coverage of the home network. STA1 and STA2 are the homes. The devices in the network, STA1 and STA2, can connect to the network through access to AP1 or AP2. As shown in Figure 1, STA1 accesses AP1 and STA2 accesses AP2. For AP2, it communicates with AP1 and STA2, and AP1 is the root AP. It is closer to the network side than AP2 and is the upstream network node of AP2. STA2 is farther away from the network side than AP2.

In the network architecture shown in Figure 1, AP2 can receive data sent by AP1 and STA2, and also send data to AP1 and STA2. In order to avoid AP1 and STA2 sending data to AP2 at the same time, AP2 will slice a time slot resource at the same time. In the embodiment of the present invention, the channel resources used by the AP2 for data transmission are divided and allocated to the device that needs to communicate with the AP2, as shown in FIG. 1 . AP1 and STA2 are shown, so that different channel resources are used when data is transmitted between AP2 and AP2, so that AP2 receiving data conflicts can be avoided, and AP2 can communicate with the access device normally.

The channel resources in the embodiment of the present invention may include spectrum resources and/or spatial resources, for example, a resource unit (RU), a spatial data stream, and the like.

The embodiment of the present invention provides a communication method of a cascading AP, which can be used in the network architecture shown in FIG. 1. As shown in FIG. 2, the method includes the following steps.

101. The first AP communicates with the second AP by using the first channel resource.

The second AP is an upstream network node of the first AP.

For example, in the network architecture shown in Figure 1, the first AP is AP2, the second AP is AP1, and AP1 is the upstream network node of AP2.

102. The first AP communicates with the STA that accesses the first AP by using the second channel resource.

The first channel resource is different from the second channel resource. The first AP may also access the STA, and the STA connects to the network by accessing the first AP. The communication resource used when the first AP communicates with the second AP is different from the communication resource used when the first AP communicates with the STA.

In the embodiment of the present invention, the first AP communicates with the second AP and the STA through different communication resources, and the data transmitted between the first AP and the second AP and the STA does not collide, thereby ensuring that the first AP can be normal. Communicate with connected devices.

It should be noted that, based on the network architecture shown in FIG. 1, the first AP may also be connected to multiple devices. When the first AP is connected to multiple devices, the first AP can communicate with each connected device through different channel resources, thereby avoiding the problem of conflict in receiving data.

As an implementation manner of the embodiment of the present invention, as shown in FIG. 3, before step 101, the following steps may also be included.

103. The first AP determines the first channel resource and the second channel resource.

The first AP may also determine a channel resource to be used for communication with the second AP and the STA before communicating with the second AP and the STA.

As an example, the manner in which the first AP determines the first channel resource and the second channel resource may be specifically: the first AP determines the first channel resource and according to the device attribute of the second AP and the device attribute of the STA. The second channel resource; or, the first AP determines the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.

The device attribute may include the identifier of the device, the address, and the like. After determining the device attribute of the device (such as the second AP and the STA), the first AP may determine the manner of accessing the first AP according to the attribute of the device. Type, for example, Wi-Fi access, USB access, wired access, etc., and the first AP can determine the data transmitted between the first AP connected device and the first AP according to the mode of accessing the first AP. The amount of data, in turn, can be used to determine channel resources for communication with each of the first AP connected devices.

The first AP may also determine the channel resource requirement of the second AP when transmitting data between the first AP and the second AP according to the device attribute of the connected device and the amount of data transmitted between the connected device and the second AP. The amount, the channel resource requirement of the STA when the data is transmitted between the first AP and the STA, and further, can determine the channel resource used for communication with each of the first AP connection devices.

For example, AP2 can determine the device that is Wi-Fi access according to the identifier included in the device attribute of STA2, and can further determine the requirement of STA2 for channel resources.

For example, when the first AP accesses multiple devices, the first AP may further determine each device type according to the device attributes of the access device, and further determine channel resources required for communication with the second AP. For example, on the basis of the network architecture shown in FIG. 1, the AP2 also accesses the network device STA3, and the AP2 can determine the device that is Wi-Fi access according to the identifier included in the attribute of the STA2, according to the attribute of the STA3. The included identifier determines that it is a Universal Serial Bus (USB) device. AP2 and STA3 are directly connected, and wireless communication resources are not used for communication. However, when AP2 determines the channel resource requirement for communication with AP1, it needs to consider the channel resources occupied by the data transmitted to STA3.

As a specific example, in the embodiment of the present invention, the manner in which the first AP determines the first channel resource and the second channel resource according to the channel resource requirement of the second AP and the channel resource requirement of the STA Specifically, the first AP determines, according to the size of the communication resource required for the first AP to communicate with the second AP, that is, the size of the channel resource requirement of the second AP, and the communication resource required when the first AP communicates with the STA. The size (that is, the size of the channel resource requirement of the STA), and then the first AP determines the ratio between the size of the channel resource requirement of the second AP and the size of the channel resource requirement of the STA; finally, the first AP is based on The outbound ratio determines the channel resources to be used for communication with each access device in the channel resources of the first AP.

For example, in the network architecture shown in Figure 1, AP1, AP2, and STA2 support 80MHz bandwidth in the 5GHz band, and the frequency resources of the three are the same. Then, AP2 can divide the frequency band resource into two parts according to the size of the communication resources required for communication between AP1 and STA2, respectively. Assuming that the ratio of the communication resources required for communication between AP1 and STA2 is 1:1, AP2 can determine that the 40 MHz bandwidth in the 80 MHz bandwidth of the 5 GHz band is used for communication with AP2, and the bandwidth of the 5 GHz band is 80 MHz. The 40 MHz bandwidth at low frequencies is used for communication with STA2.

104. The first AP sends a first message to the second AP, where the first message includes the first channel resource.

After the first AP determines the channel resources to be used for communication with the second AP and the STA, in order to prevent the first channel resource in the second AP from being occupied by other devices, the first AP will be in conflict. A channel resource is sent to the second AP by using a first message, so that the second AP determines whether the first channel resource is available for communication with the first AP.

105. The first AP receives the feedback message sent by the second AP.

After receiving the first message sent by the first AP, the second AP may determine, according to the usage of the channel resource, whether the first channel resource is determined to be used for communication with other devices. If the first channel resource has been used to communicate with other devices, it can no longer be used to communicate with the first AP, and the second AP can determine the channel resource that can be used for communication with the first AP, and notify the first AP; if the first channel resource is not used to communicate with other devices, it indicates that the first channel resource can be used to communicate with the first AP. After the second AP determines the result, the added AP sends a feedback message to the first AP.

106. When the feedback message indicates that the second AP accepts communication between the first channel resource and the first AP, the first AP sends a second information including the second channel resource to the STA. Message.

The feedback message carries the judgment result of the second AP. When the feedback message indicates that the second AP accepts communication with the first AP through the first channel resource, indicating that the first AP may determine the first channel resource and the second AP determined by step 104. The second AP resource determined by the step 104 is communicated with the STA, so the first AP may send a second message including the second channel resource to the STA to notify the STA and the first AP. Channel resources used for communication.

In this implementation manner, the second AP may determine different first channel resources and second channel resources, respectively, for communicating with the second AP and the STA, so that the problem of data conflict may be avoided.

On the basis of the embodiment shown in FIG. 2, after the first AP receives the feedback message sent by the second AP in step 105, if the feedback message indicates that the second AP does not accept the first channel resource and the The first AP needs to update the first channel resource and the second channel resource determined in step 103.

As a specific example, when the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, the feedback message includes the location determined by the second AP. The channel resource used by the first AP communication or the feature of the channel resource used by the second AP to communicate with the second AP is determined. Then, after step 105, the first AP may update the first channel resource according to the feedback message, and update the second channel resource according to the updated first channel resource; and then send the updated information to the STA. The third message of the second channel resource. The step 101 may be specifically performed by: the first AP communicating with the second AP by using the updated first channel resource. Step 102 may be specifically performed as: the first AP communicates with the STA by using the updated second channel resource.

If the second AP determines that the first channel resource has been used to communicate with other devices and cannot be used for communication with the first AP, it can determine the channel resource that can be used for communication with the first AP, and notify by a feedback message. Giving a first AP, the feedback message may include a channel resource used by the second AP to communicate with the first AP or a channel used by the second AP to communicate with the second AP. The characteristics of the resource. After receiving the feedback message, the first AP may determine, according to the feedback message, a channel resource that the second AP can use to communicate with the first AP, and then update the first channel resource to ensure that the updated first channel resource can be Make the second AP accept. Then, after updating the first channel resource, the first AP may update the second channel resource according to the updated first channel resource to ensure that the second channel resource is different from the updated first channel resource, and the updated first The two channel resources are sent to the STA through the third message to notify the channel resource used by the STA to communicate with the first AP. In the subsequent communication, the first AP communicates with the second AP through the updated first channel resource, and communicates with the STA through the updated second channel resource, so that the problem of data conflict can be avoided.

The characteristics of the channel resources may include the identity, location, type, etc. of the channel resources.

It should be noted that if the second AP determines that the first channel resource has been used for communication with other devices, it does not determine the channel resource that can be used for communication with the first AP. After receiving the feedback message, the first AP may also update the first channel resource by itself, and then send the updated first channel resource to the second AP, until it is determined that the second AP accepts communication with the first AP. Channel resources used. Then, the first AP re-updates the second channel resource to achieve the purpose of the first AP communicating with the second AP and the STA to use different channel resources.

In the embodiment of the present invention, before the first AP performs step 103, the channel resources supported by the second AP and the channel resources supported by the STA may be acquired first. The first channel resource determined by the first AP is within the channel resource range supported by the second AP, and the second channel resource determined by the first AP is within the channel resource range supported by the STA.

In the network architecture shown in FIG. 1, AP2 can obtain channel resources supported by AP1 and STA by establishing a connection with AP1 and STA respectively. For example, AP1 supports 80MHz bandwidth in the 5GHz band and has 4 antennas capable of MIMO operation. AP2 can obtain the channel resource of AP1 as the 80MHz bandwidth and 4×4 MIMO data stream in the 5GHz band.

As another implementation manner of the embodiment of the present invention, before the step 101, the method may further include: the first AP receiving an indication message of the first device, where the indication information is used to indicate communication with the first device a characteristic of a channel resource used or a channel resource used for communicating with the second AP; the first AP determining the first channel resource and the second channel resource according to the indication message.

Before the step 101, the first AP may further receive the indication message of the first device, and determine, by using the indication message, a channel resource that can be used when the second AP communicates with the first AP, so that the first AP directly according to the indication message. The first channel resource and the second channel resource are determined. After the first AP determines the first channel resource, the process of confirming with the second AP does not need to be performed.

It should be noted that, in the embodiment of the present invention, when the first AP is connected to multiple devices, the first AP may further group the first multiple devices, and then determine, according to the group, the communication to be used with each group. Channel resources are different from the channel resources to be used for communication with each group. After determining the channel resources to be used by the first AP to communicate with each group, the first AP communicates with the devices in the group by using channel resources determined for each group by means of time division multiplexing. Or, when the first AP is connected to the multiple devices, the first AP may further group the first multiple devices, and then determine the channel resource slices corresponding to each group by means of time division multiplexing in a group unit, and then determine The different channel resources used by the devices in the group are grouped in the channel resource slices corresponding to each group, so that the devices in the group use different channel resources to communicate with the first AP.

It should be noted that, in the embodiment of the present invention, the first AP may also negotiate and send and receive synchronization with the second AP before performing step 101 and step 102. When the second AP transmits data, the first AP only receives the receipt, and the first AP can synchronously receive the data of the STA. When the first AP transmits the data, the STA and the second AP only receive data, and the second AP can synchronize. Receiving data sent by the STA accessing the second AP.

As another implementation manner of the embodiment of the present invention, during the communication process between the first AP and the second AP and the STA, the communication demand may change, for example, the amount of data transmitted increases, resulting in the first channel resource and The second channel resource cannot reasonably meet the communication requirement, so the first AP can adjust the first channel resource and the second channel resource in real time.

Therefore, after the step 102, the embodiment of the present invention may further include: the first AP adjusting the first channel resource and the second channel resource. The first AP communicates with the first device through the adjusted first channel resource, and communicates with the second device by using the adjusted second channel resource.

The manner in which the first AP adjusts the first channel resource and the second channel resource may be specifically: adjusting the first channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA And the second channel resource.

The first AP can acquire various features of the second AP and the STA in real time, for example. The device attribute, the amount of data transmitted between the first AP, the type of data transmitted between the first AP, and the like, and the channel resource requirement of the second AP and the channel resource of the STA are determined according to each feature acquired in real time. The demand quantity, in turn, can adjust the first channel resource and the second channel resource, so that channel resources are allocated reasonably.

It should be noted that, in this embodiment, the first AP adjusts the first channel resource and the second channel resource, and may send the adjusted first channel resource to the second AP, and perform steps 104-106. The process is to ensure that the second AP and the first AP can communicate using the adjusted first channel resource.

FIG. 4 is a schematic block diagram of a wireless access point 200 according to an embodiment of the present invention. The wireless access point 200 is a first AP, such as AP2 in the network architecture shown in FIG. 1. As shown in FIG. 4, the wireless access point 200 includes:

The communication unit 201 is configured to communicate with the second AP by using the first channel resource, where the second AP is an upstream network node of the first AP;

The communication unit 201 is further configured to communicate with a station STA accessing the first AP by using a second channel resource, where the first channel resource is different from the second channel resource.

In the embodiment of the present invention, the wireless access point 200 communicates with the second AP and the STA through different communication resources, and the data transmitted between the wireless access point 200 and the second AP and the STA does not collide, thereby ensuring wireless. The access point 200 is capable of communicating normally with the connected device.

FIG. 5 is a schematic block diagram of still another wireless access point 200 according to an embodiment of the present invention.

It can be understood that, as shown in FIG. 5, the wireless access point 200 can further include:

a first determining unit 202, configured to determine the first channel resource and the second channel resource;

The communication unit 201 is further configured to send the first message to the second AP, where the first message includes the first channel resource;

The communication unit 201 is further configured to receive a feedback message sent by the second AP.

The communication unit 201 is further configured to: when the feedback message indicates that the second AP accepts communication between the first channel resource and the first AP, send the second channel to the STA The second message of the resource.

It can be understood that, when the feedback message indicates that the second AP does not accept communication with the first AP by using the first channel resource, the feedback message includes a location determined by the second AP. a channel resource used by the first AP communication or a feature of a channel resource used by the second AP to communicate with the second AP;

As shown in FIG. 5, the wireless access point 200 may further include:

The updating unit 203 is configured to: when the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, update the first channel resource according to the feedback message;

The updating unit 203 is further configured to update the second channel resource according to the updated first channel resource;

The communication unit 201 is further configured to send, to the STA, a third message that includes the updated second channel resource;

The communication unit 201 is configured to communicate with the second AP by using the updated first channel resource when communicating with the first device that accesses the first AP by using the first channel resource;

The communication unit 201 is configured to communicate with the STA by using the updated second channel resource when the communication unit 201 communicates with the STA that accesses the first AP by using the second channel resource.

It can be understood that the first determining unit 202 is specifically configured to:

Determining the first channel resource and the second channel resource according to a device attribute of the second AP and a device attribute of the STA; or

Determining the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.

It is to be understood that the communication unit 201 is further configured to receive an indication message of the first device, where the indication information is used to indicate a channel resource used for communication with the first device or with the second AP. Characteristics of the channel resources used by the communication;

As shown in FIG. 5, the wireless access point 200 may further include:

The second determining unit 204 is configured to determine the first channel resource and the second channel resource according to the indication message.

The adjusting unit 205 is configured to adjust the first channel resource and the second channel resource;

The communication unit is further configured to communicate with the first device by using the adjusted first channel resource, and communicate with the second device by using the adjusted second channel resource.

It can be understood that the adjusting unit 205 is specifically configured to adjust the first channel resource and the second channel resource according to the channel resource requirement of the second AP and the channel resource requirement of the STA.

It can be understood that the first channel resource includes a spectrum resource and a spatial resource, and the second channel resource includes a spectrum resource and a spatial resource.

The wireless access point 200 according to an embodiment of the present invention may correspond to an execution subject in a communication method of a cascading AP according to an embodiment of the present invention, and each module in the wireless access point 200 respectively implements FIG. 2 or FIG. 3 The corresponding processes in the illustrated method are not described herein for the sake of brevity.

FIG. 6 is a schematic block diagram of another wireless access point 300 in accordance with an embodiment of the present invention. As shown in FIG. 6, the wireless access point 300 includes a processor 301, a memory 302, and a communication interface 303 for communicating with external devices.

The processor 301 can include a central processing unit (CPU), a network processor (NP), or a combination thereof. The processor 301 may further include a hardware chip, such as an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof. The circuits in processor 301 can be separate or integrated into one or more chips.

The memory 301 can be a stand-alone device or can be integrated in the processor 301. The memory 301 may include a volatile memory such as a random-access memory (RAM). The memory 301 may also include a non-volatile memory such as a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD). Memory 301 can also include any combination of the above types of memory.

Optionally, the memory 302 is also used to store computer program instructions, and the processor 301 executes the computer program instructions stored in the memory 302 to implement the method illustrated in FIG. 2 or FIG.

Communication interface 303 can be a wireless interface. The wireless interface may be a cellular mobile network interface, a wireless local area network (WLAN) interface, etc., and a specific implementation may include a combination of devices such as an antenna and a signal modem.

The device 300 can also include a bus 304 for connecting the processor 301, the memory 302, and the communication interface 303 to cause the processor 301, the memory 302, and the communication interface 303 to communicate with one another via the bus 304.

In one embodiment, the memory 302 is for storing program code, and the processor 301 is configured to invoke the program code to implement the functions and steps performed by the first AP in the method illustrated in FIG. 2 or FIG.

In the above embodiments, it may be implemented in whole or in part by software, hardware, or a combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, twisted pair, fiber optic) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, an optical disk), or a semiconductor medium (eg, a solid state hard disk) or the like.

Claims

A communication method for a cascading wireless access point AP, comprising:

The first AP communicates with the second AP by using the first channel resource, where the second AP is an upstream network node of the first AP;

The first AP communicates with a station STA accessing the first AP by using a second channel resource, where the first channel resource is different from the second channel resource.
The method according to claim 1, wherein before the first AP communicates with the second AP by using the first channel resource, the method further includes:

Determining, by the first AP, the first channel resource and the second channel resource;

Sending, by the first AP, a first message to the second AP, where the first message includes the first channel resource;

Receiving, by the first AP, a feedback message sent by the second AP;

When the feedback message indicates that the second AP accepts communication with the first AP through the first channel resource, the first AP sends a second packet including the second channel resource to the STA Message.
The method according to claim 2, wherein when the feedback message indicates that the second AP does not accept communication with the first AP through the first channel resource, the feedback message includes Determining, by the second AP, a channel resource used for communicating with the first AP or a channel resource used by the second AP to communicate with the second AP, the method further includes:

When the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, the first AP updates the first channel resource according to the feedback message;

The first AP updates the second channel resource according to the updated first channel resource;

Sending, by the first AP, a third message that includes the updated second channel resource to the STA;

The first AP communicates with the first device that accesses the first AP by using the first channel resource, including:

The first AP communicates with the second AP by using the updated first channel resource;

The first AP communicates with the STA that accesses the first AP by using the second channel resource, including:

The first AP communicates with the STA by using the updated second channel resource.
The method according to claim 2 or 3, wherein the determining, by the first AP, the first channel resource and the second channel resource comprises:

Determining, by the first AP, the first channel resource and the second channel resource according to a device attribute of the second AP and a device attribute of the STA; or

The first AP determines the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.
The method according to claim 1, wherein before the first AP communicates with the first device accessing the first AP by using the first channel resource, the method further includes:

Receiving, by the first AP, an indication message of the first device, where the indication information is used to indicate a channel resource used for communication with the first device or a feature of a channel resource used for communication with the second AP;

The first AP determines the first channel resource and the second channel resource according to the indication message.
The method according to any one of claims 1-5, further comprising: after the first AP communicates with the STA that accesses the first AP by using the second channel resource,

The first AP adjusts the first channel resource and the second channel resource;

The first AP communicates with the first device by using the adjusted first channel resource, and communicates with the second device by using the adjusted second channel resource.
The method according to claim 6, wherein the adjusting, by the first AP, the first channel resource and the second channel resource comprises:

The first AP adjusts the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.
The method according to any one of claims 1 to 7, wherein the first channel resource comprises a spectrum resource and/or a space resource, and the second channel resource comprises a spectrum resource and/or a space resource.
A wireless access point, wherein the wireless access point is a first wireless access point AP, including:

a communication unit, configured to communicate with the second AP by using the first channel resource, where the second AP is an upstream network node of the first AP;

The communication unit is further configured to communicate with a station STA accessing the first AP by using a second channel resource, where the first channel resource is different from the second channel resource.
The wireless access point of claim 9, further comprising:

a first determining unit, configured to determine the first channel resource and the second channel resource;

The communication unit is further configured to send the first message to the second AP, where the first message includes the first channel resource;

The communication unit is further configured to receive a feedback message sent by the second AP;

The communication unit is further configured to: when the feedback message indicates that the second AP accepts communication between the first channel resource and the first AP, send the second channel resource to the STA The second message.
The wireless access point according to claim 10, wherein when the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, the feedback The message includes a channel resource used by the second AP to communicate with the first AP or a feature of a channel resource used by the second AP to communicate with the second AP, the wireless access Points also include:

And an updating unit, configured to: when the feedback message indicates that the second AP does not accept communication between the first channel resource and the first AP, update the first channel resource according to the feedback message;

The updating unit is further configured to update the second channel resource according to the updated first channel resource;

The communication unit is further configured to send, to the STA, a third message that includes the updated second channel resource;

The communication unit is configured to communicate with the second AP by using the updated first channel resource when communicating with the first device that accesses the first AP by using the first channel resource;

The communication unit is configured to communicate with the STA by using the updated second channel resource when the communication unit communicates with the STA that accesses the first AP by using the second channel resource.
The wireless access point according to claim 10 or 11, wherein the first determining unit is specifically configured to:

Determining the first channel resource and the second channel resource according to a device attribute of the second AP and a device attribute of the STA; or

Determining the first channel resource and the second channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA.
The wireless access point according to claim 9, wherein the communication unit is further configured to receive an indication message of the first device, where the indication information is used to indicate that the first device is used for communication. a characteristic of a channel resource or a channel resource used for communicating with the second AP;

The wireless access point further includes:

a second determining unit, configured to determine the first channel resource and the second channel resource according to the indication message.
The wireless access point according to any one of claims 9 to 13, further comprising:

An adjusting unit, configured to adjust the first channel resource and the second channel resource;

The communication unit is further configured to communicate with the first device by using the adjusted first channel resource, and communicate with the second device by using the adjusted second channel resource.
The wireless access point according to claim 14, wherein the adjusting unit is configured to adjust the first channel resource according to a channel resource requirement of the second AP and a channel resource requirement of the STA. And the second channel resource.
The wireless access point according to any one of claims 9-15, wherein the first channel resource comprises a spectrum resource and/or a space resource, and the second channel resource comprises a spectrum resource and/or a space resource. .
A wireless access point, wherein the wireless access point is a first wireless access point AP, including: one or more processors, a memory, and a communication interface;

The memory, the communication interface coupled to the one or more processors;

The memory is for storing computer program code, the computer program code comprising instructions for performing the functions of any of claims 1-8 when the one or more processors execute the instructions A method of communication for a cascaded wireless access point.
A computer readable storage medium having instructions stored in a computer readable storage medium for causing a computer to execute the communication method of the cascading wireless access point according to any one of claims 1-8 when it is run on a computer .