WO2015018067A1

WO2015018067A1 - Channel selection method and device

Info

Publication number: WO2015018067A1
Application number: PCT/CN2013/081187
Authority: WO
Inventors: 杨浔; 甄斌; 赵牧
Original assignee: 华为技术有限公司
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2015-02-12

Abstract

Provided are a channel selection method and device. The method comprises: a first AP sending a BSS establishment request message, which includes an identifier of a channel required by a BSS to be established to a channel selection control unit, receiving a BSS establishment response message which is sent by the channel selection control unit and comprises indication information for indicating whether the BSS to be established is allowed to be established on a channel, wherein the indication information is determined by the channel selection control unit according to the priority of a BSS where a second AP currently working on the channel is located and the priority of the BSS to be established; and according to an indication, establishing or not establishing the BSS to be established on the channel. The technical solution of the present invention can select a better channel for a BSS to be established in the case where a plurality of BSS' share a channel, thereby avoiding serious interference and the like among various BSS'.

Description

The present invention relates to communication technologies, and in particular, to a channel selection method and device.

Background technique

The 802.11-based Wireless Local Area Network (WLAN) was originally set up to replace the Ethernet to adapt to the indoor environment of the wireless network, but is now widely deployed in public. WLANs that are widely deployed in public places are generally deployed intensively, that is, access points (APs) are relatively close together, and basic service sets (BSSs) overlap each other. In addition to the characteristics of dense deployment, WLANs that are now widely deployed in public places also exhibit different characteristics from WLANs that have been positioned in indoor environments. For example, the owners of WLANs are no longer singular, and the owners of WLANs may be the operations of deploying networks. WLAN, service provider, network access for the second operation of wireless access operators, some providers of wireless access, or Bring-Your-Own-Device (abbreviated as BY0D), etc., WLAN may be serviced Driven by the WLAN, the WLAN may be generated and disappeared at any time.

In this heterogeneous densely deployed WLAN network, due to the limited spectrum resources, multiple BSSs may need to share the same channel. In such a case, in order to guarantee the quality of service of the BSS, how to select the channel when the BSS is established becomes a key issue. Summary of the invention

The embodiment of the invention provides a channel selection method and device for solving the channel selection problem of the BSS.

The first aspect provides a channel selection method, including:

The first access point AP sends a basic service set BSS setup request message to the channel selection control unit, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

Receiving, by the first AP, a BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; The indication information is that the channel selection control unit is based on the current Determining the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established;

And the first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier according to the indication of the BSS establishment reply message.

On the basis of the foregoing implementation manners, optionally, the BSS setup request message further includes a priority of the BSS to be established.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is established on the channel that is identified by the identifier, the BSS establishment reply message further includes: allowing the to-be-established The BSS uses the duration of the channel identified by the identity and/or the bandwidth allowed on the channel identified by the identity.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel that is identified by the identifier, the BSS establishment reply message further includes: the first The time when the AP sends the BSS setup request message again.

On the basis of the foregoing implementation manners, optionally, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified channel selection. Related data identification.

On the basis of the foregoing implementation manners, the method further includes:

Receiving, by the first AP, an advertisement message sent by the channel selection control unit, where the advertisement message includes a priority of the BSS to be established; or

The first AP sets the priority of the BSS to be established according to the priority of the neighbor BSS and the parameters required to set the priority.

The second aspect provides a channel selection method, including:

The channel selection control unit receives a basic service set BSS setup request message sent by the first access point AP, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

Determining, by the channel selection control unit, whether the BSS to be established is allowed to be identified by the identifier according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established. Established on the channel;

The channel selection control unit sends a BSS setup reply message to the first AP, where the BSS setup reply message includes a message for indicating whether to allow the BSS to be established to be identified by the identifier. The indication information is set up on the channel, so that the first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier.

On the basis of the above implementation manner, optionally, the channel selection control unit determines, according to the priority of the BSS where the second AP is located on the channel identified by the identifier, and the priority of the BSS to be established. Allowing the to-be-established BSS to be established on the channel identified by the identifier includes:

If the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit determines that the BSS to be established is allowed to be in the Established on the identified channel; or

If the priority of the BSS to be established is lower than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit will work currently identified by the identifier. Comparing the number of the second APs on the channel and/or the duration of occupying the channel identified by the identifier with a corresponding threshold, if the comparison result is less than the threshold, determining to allow the BSS to be established to be in the Establishing on the identified channel, if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be established on the channel identified by the identifier.

On the basis of the above implementation manner, optionally, the channel selection control unit determines, according to the priority of the BSS where the second AP is located on the channel identified by the identifier, and the priority of the BSS to be established. Before allowing the to-be-established BSS to be established on the channel identified by the identifier, the method includes:

The channel selection control unit determines the priority of the BSS to be established and the priority of the BSS where the second AP is located, according to the parameters required for setting the priority;

The channel selection control unit sends the priority of the BSS to be established to the first AP, and sends the priority of the BSS where the second AP is located to the second AP.

On the basis of the foregoing implementation manners, optionally, the BSS establishment request message further includes a priority of the BSS to be established;

Determining, by the channel selection control unit, whether the BSS to be established is allowed to be identified by the identifier according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established. Before the channel is established, it also includes:

The channel selection control unit receives the priority of the BSS where the second AP is sent by the second AP. On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is established on the channel that is identified by the identifier, the BSS establishment reply message further includes: allowing the to-be-established The BSS uses the duration of the channel identified by the identity and/or the bandwidth allowed on the channel identified by the identity.

The third aspect provides a channel selection method, including:

The first access point AP sends a basic service set BSS setup request message to the second AP, to request to establish a BSS to be established on the channel currently used by the second AP;

Receiving, by the first AP, a BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel; the indication information is Determining, by the second AP, the priority of the BSS where the second AP is located and the priority of the BSS to be established;

And the first AP establishes the to-be-established BSS on the channel or does not establish the to-be-established BSS on the channel according to the indication of the BSS establishment reply message.

On the basis of the foregoing implementation manner, the first access point AP sends a basic service set BSS setup request message to the second AP to request to establish a BSS to be established on the channel currently used by the second AP. Previously, including:

The first AP acquires the priority of the BSS where the third AP currently working on the channel is located, according to the priority of the BSS where the third AP currently working on the channel is located, and the priority of the BSS to be established. Determining, as the second AP, a third AP in the BSS having a higher priority than the priority of the BSS to be established.

On the basis of the foregoing implementation manners, optionally, the first AP acquires the priority of the BSS where the third AP currently working on the channel is located, including:

Receiving, by the first AP, a beacon frame respectively sent by a third AP currently working on the channel, where the beacon frame includes a priority of a BSS where the third AP is located; or

Sending, by the first AP, a query message to a third AP currently working on the channel, and receiving, by the third AP, a query response message returned by the query message, where the query response message includes the third The priority of the BSS where the AP is located. On the basis of the foregoing implementation manner, the first access point AP sends a basic service set BSS setup request message to the second AP to request to establish a BSS to be established on the channel currently used by the second AP. , including:

Transmitting, by the first AP, the BSS setup request message to a third AP currently working on the channel, to send the BSS priority in the third AP to be higher than the priority of the BSS to be established. The second AP requests to establish the to-be-established BSS on the channel currently used by the second AP.

On the basis of the foregoing implementation manners, optionally, the BSS setup request message includes a priority of the BSS to be established.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is established on the channel, the BSS establishment reply message further includes: allowing the BSS to be established to use the The length of the channel and/or the bandwidth allowed on the channel.

On the basis of the above implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the first AP resending the station The time at which the BSS establishes the request message.

Receiving, by the first AP, an advertisement message sent by the priority setting unit, where the notification message includes a priority of the BSS to be established; or

The fourth aspect provides a channel selection method, including:

The second access point AP receives the basic service set BSS setup request message sent by the first AP, where the BSS setup request message is used by the first AP to establish a BSS to be established on the channel currently used by the second AP;

Determining, by the second AP, whether the BSS to be established is allowed to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established;

Sending, by the second AP, a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, So that the first AP establishes the to-be-established BSS on the channel or does not establish the to-be-established BSS on the channel.

On the basis of the foregoing implementation manners, optionally, before the second access point AP receives the basic service set BSS establishment request message sent by the first AP, the method includes:

The second AP sends a beacon frame to the first AP, where the beacon frame includes a priority of the BSS where the second AP is located, so that the first AP is prioritized according to the BSS where the second AP is located. Level and the priority of the BSS to be established, determining whether to send the BSS establishment request message to the second AP; or

Receiving, by the second AP, the query message sent by the first AP, and returning a query response message to the first AP, where the query response message includes a priority of the BSS where the second AP is located, so that the An AP determines whether to send the BSS establishment request message to the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established.

On the basis of the above implementation manner, the second AP determines whether to allow the BSS to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established. Established, including:

The second AP compares the priority of the BSS where the second AP is located with the priority of the BSS to be established;

If the comparison result is that the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, the second AP determines that the BSS to be established is not allowed to be established on the channel; or

If the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, the second AP discards the BSS establishment request message, or sends the indication information to the first AP. The response message that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the first AP The time at which the BSS setup request message is sent again.

The fifth aspect provides a cell priority setting method, including:

The priority setting unit acquires parameters of each basic service set BSS required to set the priority or a policy required to set the priority;

The priority setting unit sets a priority for each of the BSSs according to the parameters of the BSSs or the policy.

On the basis of the foregoing implementation manners, optionally, the priority of the BSS is identified by the number of associated users in the BSS, the number of active users in the BSS, and/or the specified data related to channel selection.

On the basis of the foregoing implementation manners, optionally, in a second possible implementation manner of the fifth aspect, the priority of the BSS is carried by an access point AP and a site device in the BSS.

On the basis of the foregoing implementation manners, the method further includes: the priority setting unit respectively sending the priorities of the BSSs to the APs in the BSSs.

On the basis of the above implementation manners, optionally, the priority of the same BSS is different according to the policy to be executed by the BSS.

The sixth aspect provides a cell priority setting method, including:

The access point AP obtains the priority of the neighbor basic service set BSS and the value of the parameter used by the neighbor BSS to set the priority.

The AP determines the priority of the BSS where the AP is located, according to the value of the local parameter, the priority of the neighbor BSS, and the value of the parameter used by the neighbor BSS.

The seventh aspect provides a channel selection apparatus, where the apparatus is implemented by the first access point AP or the apparatus is disposed in the first AP, and the apparatus includes:

a sending module, configured to send a basic service set BSS setup request message to the channel selection control unit, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

a receiving module, configured to receive a BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; The indication information is determined by the channel selection control unit according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established;

a determining module, configured to: identify, according to the indication that the BSS establishes a reply message, the identifier The BSS to be established is established on the channel or the BSS to be established is not established on the channel identified by the identifier.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS establishment reply message further includes: the channel selection The time at which the device transmits the BSS setup request message again.

On the basis of the above implementation manner, optionally, the receiving module is further configured to receive an advertisement message sent by the channel selection control unit, where the advertisement message includes a priority of the BSS to be established; or

The device also includes:

The priority setting module is configured to set a priority of the BSS to be established according to a priority of the neighbor BSS and a parameter required to set the priority.

The eighth aspect provides a channel selection control unit, including:

a receiving module, configured to receive a basic service set BSS setup request message sent by the first access point AP, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

a determining module, configured to determine, according to a priority of a BSS where the second AP is located on the channel identified by the identifier, and a priority of the BSS to be established, whether to allow the BSS to be established to be identified by the identifier Established on the channel;

a sending module, configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, so that The first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier. On the basis of the above implementation manner, the determining module is specifically configured to: if the priority of the BSS to be established is higher than the BSS of the second AP currently working on the channel identified by the identifier Determining, allowing the BSS to be established to be established on the channel identified by the identifier; if the priority of the BSS to be established is lower than the second AP currently working on the channel identified by the identifier The priority of the BSS is to compare the number of the second APs currently working on the channel identified by the identifier and/or the duration of the channel identified by the identifier with a corresponding threshold, if the comparison result is less than Determining, by the threshold, that the BSS to be established is established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be identified by the identifier Established on the channel.

On the basis of the above implementation manner, optionally, the determining module is further configured to: according to parameters required to set a priority, before determining whether to allow the BSS to be established to be established on the channel identified by the identifier, Determining, respectively, a priority of the BSS to be established and a priority of the BSS where the second AP is located;

The sending module is further configured to send the priority of the BSS to be established to the first AP, and send the priority of the BSS where the second AP is located to the second AP.

The receiving module is further configured to: before the determining module determines whether the BSS to be established is allowed to be established on the channel identified by the identifier, receive a priority of the BSS where the second AP is sent by the second AP .

The ninth aspect provides a channel selection apparatus, where the apparatus is implemented by the first access point AP or the apparatus is disposed in the first AP, and the apparatus includes:

a sending module, configured to send a basic service set BSS setup request message to the second AP, to request Establishing a BSS to be established on the channel currently used by the second AP;

a receiving module, configured to receive a BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information for indicating whether the BSS to be established is established on the channel, where the indication information is Determining, by the second AP, the priority of the BSS where the second AP is located and the priority of the BSS to be established;

And a determining module, configured to establish, according to the indication that the BSS establishes a reply message, the to-be-established BSS on the channel or not to establish the to-be-established BSS on the channel.

On the basis of the above implementation manner, optionally, the device further includes:

An acquiring module, configured to send, by the sending module, the BSS setup request message, to obtain a priority of a BSS where a third AP currently working on the channel is located, according to a BSS where a third AP currently working on the channel is located The priority of the BSS to be established, and the third AP in the BSS whose priority is higher than the priority of the BSS to be established is determined as the second AP.

On the basis of the foregoing implementation manners, the acquiring module is specifically configured to receive a beacon frame separately sent by a third AP currently working on the channel, where the beacon frame includes the third AP BSS priority; or

The acquiring module is specifically configured to send a query message to a third AP that is currently working on the channel, and receive a query response message that is sent by the third AP by the query message, where the query response message includes the The priority of the BSS where the third AP is located.

On the basis of the foregoing implementation manners, the sending module is specifically configured to send the BSS setup request message to a third AP currently working on the channel, to give priority to the BSS in the third AP. The second AP whose level is higher than the priority of the BSS to be established requests to establish the to-be-established BSS on the channel currently used by the second AP.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the channel selection apparatus resending the station The time at which the BSS establishes the request message. On the basis of the foregoing implementation manners, optionally, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified channel selection. Related data identification.

On the basis of the above implementation manner, the receiving module is further configured to receive an advertisement message sent by the priority setting unit, where the notification message includes a priority of the BSS to be established; or the channel selection device further Includes:

The tenth aspect provides a channel selection apparatus, where the apparatus is implemented by the second access point AP or the apparatus is disposed in the second AP, and the apparatus includes:

a receiving module, configured to receive a basic service set BSS setup request message sent by the first AP, where the BSS setup request message is used by the first AP to establish a BSS to be established on a channel currently used by the second AP;

a determining module, configured to determine, according to a priority of the BSS where the second AP is located, and a priority of the BSS to be established, whether to allow the to-be-established BSS to be established on the channel;

a sending module, configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, so that the first AP is in the Establishing the to-be-established BSS on the channel or not establishing the to-be-established BSS on the channel.

On the basis of the foregoing implementation manner, the sending module is further configured to: before the receiving module receives the BSS setup request message, send a beacon frame to the first AP, where the beacon frame includes The priority of the BSS where the second AP is located, so that the first AP determines whether to send the to the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established. BSS establishes a request message; or

The receiving module is further configured to receive the first before receiving the BSS setup request message

The query message sent by the AP; the sending module is further configured to: return a query response message to the first AP, where the query response message includes a priority of the BSS where the second AP is located, so that the first AP is configured according to the Determining whether the priority of the BSS where the second AP is located and the priority of the BSS to be established, determining whether to send the BSS establishment request message to the second AP.

On the basis of the above implementation manner, optionally, the determining module is specifically configured to use the second The priority of the BSS where the AP is located is compared with the priority of the BSS to be established; if the comparison result is that the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, it is determined that the to-be-established is not allowed. The BSS is established on the channel; if the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, the BSS establishment request message is discarded, or is sent to the first AP. And a response message indicating that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

On the basis of the foregoing implementation manner, optionally, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the channel selection device resending the station The time at which the BSS establishes the request message.

The eleventh aspect provides a channel selection device, where the device is implemented by the first access point AP or the device is disposed in the first AP, and the device includes:

a transmitter, configured to send a basic service set BSS setup request message to the channel selection control unit, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

a receiver, configured to receive a BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; The indication information is determined by the channel selection control unit according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established;

The processor is configured to establish the to-be-established BSS on the channel identified by the identifier or not to establish the to-be-established BSS on the channel identified by the identifier according to the indication that the BSS establishes a reply message.

A twelfth aspect provides a channel selection control unit, including:

a receiver, configured to receive a basic service set BSS setup request message sent by the first access point AP, where the BSS setup request message includes an identifier of a channel required to establish a BSS;

a processor, configured to: according to a second AP that is currently working on the channel identified by the identifier Determining the priority of the BSS and the priority of the BSS to be established whether to allow the BSS to be established to be established on the channel identified by the identifier;

a transmitter, configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, so that The first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier.

The thirteenth aspect provides a channel selection device, where the device is implemented by the first access point AP or the device is disposed in the first AP, and the device includes:

a transmitter, configured to send a basic service set BSS setup request message to the second AP, to request to establish a BSS to be established on a channel currently used by the second AP;

a receiver, configured to receive a BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel; the indication information is Determining, by the second AP, the priority of the BSS where the second AP is located and the priority of the BSS to be established;

And a processor, configured to establish, according to the indication that the BSS establishes a reply message, the to-be-established BSS on the channel or not to establish the to-be-established BSS on the channel.

The fourteenth aspect provides a channel selection device, where the device is implemented by the second access point AP or the device is disposed in the second AP, and the device includes:

a receiver, configured to receive a basic service set BSS setup request message sent by the first AP, where the BSS setup request message is used by the first AP to establish a BSS to be established on a channel currently used by the second AP;

a processor, configured to determine, according to a priority of the BSS where the second AP is located, and a priority of the BSS to be established, whether to allow the to-be-established BSS to be established on the channel;

a transmitter, configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel, so that the first AP is in the Establishing the to-be-established BSS on the channel or not establishing the to-be-established BSS on the channel.

The channel selection method and device provided by the embodiment of the present invention, after the AP sends the BSS setup request message, the channel selection control unit or the AP currently working on the channel determines whether to allow the BSS to be on the channel based on the BSS priority level. Establishing, and returning an indication of whether to allow the BSS to be established in the The indication information is established on the channel, and the AP that sends the BSS setup request message establishes or does not establish a BSS on the channel according to the indication information, that is, selects or selects the channel for the BSS to be established according to the indication, and thus may be in multiple When the BSS shares the same channel, selecting a better channel for the BSS to be established is beneficial to guarantee the quality of service of the BSS. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1A is a schematic diagram of an application scenario of channel selection according to an embodiment of the present invention; FIG. 1B is a flowchart of a channel selection method according to an embodiment of the present invention;

2 is a flowchart of another channel selection method according to an embodiment of the present invention;

3A is a schematic diagram of another application scenario of channel selection according to an embodiment of the present invention; FIG. 3B is a flowchart of still another channel selection method according to an embodiment of the present invention;

4 is a flowchart of still another channel selection method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a channel selection apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another channel selection apparatus according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of a channel selection control unit according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of another channel selection apparatus according to an embodiment of the present invention; FIG. 10 is a schematic structural diagram of another channel selection apparatus according to an embodiment of the present invention; A schematic diagram of a structure of a channel selection apparatus according to another embodiment of the present invention; FIG. 12 is a schematic structural diagram of still another channel selection apparatus according to an embodiment 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 a partial embodiment of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art obtain the following without creative efforts. All other embodiments obtained are within the scope of the invention.

In the embodiment of the present invention, the concept of BSS priority division in the wireless local area and the identification and setting method of the BSS priority are first proposed. A higher priority for BSS means that devices belonging to the BSS will have priority over other BSS devices or occupy certain spectrum resources. Then, based on the BSS priority, the embodiment of the present invention further proposes a BSS channel selection method. The following is a description of the BSS priority related information.

The BSS priority is set for each BSS. Different BSS priorities are high or low. The priority of the same BSS will also vary depending on the strategy that the BSS performs. For example: When considering access control, the priority of a BSS may be the highest, that is, the various devices in the BSS may use the channel preferentially; but when considering channel switching, the BSS priority may be The lowest, that is to say, the BSS may be required to switch channels by the higher priority BSS. This allows for more flexible prioritization based on the policies that the BSS will perform.

The priority of a BSS can be identified by one or a set of data. For example, consider the number of associated users in a BSS, the number of active users in the BSS, or the specified data related to channel selection, etc. to identify the priority of the BSS. For another example, the number of associated users in a BSS and the number of active users in the BSS can be used simultaneously to determine the priority of the BSS. For example, the higher the number of active users, the higher the BSS priority. When the number of active users is the same, the higher the number of associated users, the higher the BSS priority. In addition to the above examples, the priority of the BSS may also be identified by the number of associated users in the BSS, the number of active users in the BSS, and the specified data associated with channel selection. In addition, in addition to the number of associated users, the number of active users, and the specified data related to channel selection, other data can also be used to identify the BSS priority.

The priority of the BSS is carried by the AP and the STA in the BSS. That is, the APs and STAs in the high-priority BSS have higher priority than the APs and STAs in the low-priority BSS. The BSS priority is the attribute of the BSS and is carried by various devices in the BSS. When a device leaves the current BSS, the corresponding priority is lost.

Based on the above definition, the embodiment of the present invention provides a cell priority setting method, including: a priority setting unit acquires a parameter of each BSS required to set a priority or a policy required to set a priority; a priority setting unit according to The acquired parameters of each BSS or the policy are used to set priorities for each BSS.

The priority setting unit is preferably AC, but is not limited thereto. Below is set by priority The unit is an AC as an example for detailed description.

The method of setting the cell priority belongs to the central control mode. Specifically, the AC sets a priority for each BSS based on a preset parameter, or the AC sets a priority for each BSS based on a preset policy. The parameters required to set the priority may be different depending on the application scenario. For example, the channel switching is used as an example. The parameters required for setting the BSS priority may include: the length of the buffer queue to be transmitted in the BSS and the buffer queue corresponding to the downlink service, or the sum of the buffer queue lengths corresponding to multiple services, and the like. . The 802.11 standard divides business packages into four categories: voice, video, background, and best effort. The longer the cache queue corresponding to the service, the higher the BSS priority. For example, in other application scenarios, parameters required for setting a BSS priority may include: number of associated STAs, traffic, number of active STAs, and the like. The policy required to set the priority may be set according to the payment information of the STA in each BSS or the information of the operator to which the BSS belongs.

After the priority is set for each BSS, the AC can send the priority of each BSS to the APs in each BSS, so that each AP knows the priority of the BSS, and then performs corresponding operations based on the BSS priority.

Based on the above definition, the embodiment of the present invention further provides a method for setting a cell priority, which includes: an AP acquiring a priority of a neighbor BSS and a parameter used by a neighbor BSS to set a priority; and then, the AP according to the local parameter The value, the priority of the neighbor BSS, and the value of the parameter used by the neighbor BSS to set the priority determine the priority of the BSS where the AP is located.

The method of setting the cell priority belongs to a distributed mode. Specifically, the AP in the BSS whose priority is set refers to the priority of the neighbor BSS, and the value of the related parameter used by the neighbor BSS setting priority and the value of the local same parameter, and the priority of the BSS is set. Optionally, before obtaining the priority of the neighbor BSS, the AP may send a priority acquisition request to the AP in the AC or the neighbor BSS to request the priority of the neighbor BSS and the value of the parameter used by the neighbor BSS to set the priority. Then, the reply information returned by the AP in the AC or the neighbor BSS is received, and the priority of the neighbor BSS and the value of the parameter used for setting the priority are obtained.

The STAs in the BSS can be used to obtain the priority of the BSS in the following manner.

Active acquisition mode: The STA sends a priority request message to the AP. The priority request message can be a new command or a new field contained in a control frame, a management frame, or a data frame. For example, the priority request message can be enqueued in an association request or a probe request. The The priority request message contains information such as the ID of the BSS and other related parameters. After receiving the priority request message, the AP feeds back the priority of the current BSS to the STA.

Passive acquisition mode: The AP broadcasts the priority information of the current BSS in a beacon frame, management frame, control frame, or data frame. The STA receives the beacon frame, the management frame, the control frame, or the data frame broadcast by the AP, and obtains the priority information of the current BSS from the STA.

Based on the foregoing BSS priority, the embodiment of the present invention further provides a channel selection method, where the channel selection method is used to select a channel for a BSS to be established, and the channel selection control unit may perform channel selection for establishing a BSS, which is a centralized control. The channel selection method of the mode. The channel selection control unit may be an AC, or may be implemented in an AC, or may be an AC independent control unit or the like. As shown in FIG. 1A, the application scenario of the channel selection control unit is as shown in FIG. 1A. The application scenario includes an AC, a first AP and a second AP respectively connected to the AC, where the first AP requests the AC. The BSS is established on the channel on which the second AP works (ie, the BSS to be established), and the AC is responsible for managing the establishment of the BSS selection channel. It is noted that, according to different implementations of the channel selection control unit, the connection relationship between the channel selection control unit and the second AP is not limited to that shown in FIG. 1A, for example, if the channel selection control unit stores the second AP and the second in advance. The channel selection control unit may not be connected to the second AP if the information about the BSS of the AP is located.

The channel selection method provided by the embodiment of the present invention is as shown in FIG. 1B, and the method includes:

101. The first AP sends a BSS setup request message to the channel selection control unit, where the BSS setup request message includes an identifier of a channel required to establish the BSS.

The first AP receives the BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; The indication information is that the channel selection control unit determines the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established.

103. The first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier according to the indication that the BSS establishes a reply message.

In this embodiment, the BSS that needs to be established is referred to as a BSS to be established, and the AP that initiates the BSS establishment request message is referred to as a first AP. When the BSS is established, the first AP sends to the channel selection control unit The BSS establishes a request message to inform the channel selection control unit of the channel required to establish the BSS. Optionally, the BSS setup request message may further include information such as bandwidth required for establishing the BSS.

It is noted that the first AP and the second AP may be different APs in the same carrier network, or may be APs in different carrier networks. For example, the first AP may be an AP deployed by a wireless access operator that is network leased for the second time, or an AP deployed by a merchant that provides wireless access, or a BY0D of an individual. The second AP may be an AP or the like in a network deployed by an operator deploying the network.

After receiving the BSS setup request message sent by the first AP, the channel selection control unit determines the channel required for the BSS to be established according to the identifier of the channel required to establish the BSS included in the BSS setup request message (ie, the Identifying the identified channel) and the BSS where the second AP currently working on the channel identified by the identifier is located, and then according to the priority and location of the BSS where the second AP currently working on the channel identified by the identifier is located Determining the priority of establishing the BSS determines whether the BSS to be established is allowed to be established on the channel. Then, the channel selection control unit returns a BSS setup reply message to the first AP, and carries the indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier in the BSS setup reply message.

For example, if the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit may determine to allow the BSS to be established. Established on the channel identified by the identifier; otherwise, the channel selection control unit determines that the BSS to be established is not allowed to be established on the channel identified by the identifier.

For example: if the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit may determine to allow the BSS to be established. Established on the channel identified by the identifier; if the priority of the BSS to be established is lower than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit Comparing the number of BSSs of the second AP currently working on the channel identified by the identifier and/or the duration of occupying the channel identified by the identifier with a corresponding threshold, if the comparison result is less than the threshold Determining that the BSS to be established is allowed to be established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be established on the channel identified by the identifier .

In an optional implementation manner, the channel selection control unit knows in advance the priority of the BSS to be established and the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, then the channel The selection control unit may determine, according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established, whether to allow the BSS to be established to be identified by the identifier. Established on the channel. For example, in a case where each BSS priority is set by the channel selection control unit in a central control manner, the channel selection control unit knows the priority of each BSS in advance.

In an optional implementation manner, the channel selection control unit does not know in advance the priority of the BSS to be established and the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, and the first AP may send The BSS establishment request message of the channel selection control unit carries the priority of the BSS to be established, so that the channel selection control unit knows the priority of the BSS to be established. In addition, the channel selection control unit further determines whether to allow the BSS to be established in the priority according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established. Before the establishment on the channel, obtain the priority of the BSS where the second AP currently working on the channel identified by the identifier is located. For example, the channel selection control unit may send an acquisition request to the second AP, and then receive a reply message returned by the AP, where the reply message carries the priority of the BSS where the second AP is located.

After the first AP receives the BSS setup reply message returned by the channel selection control unit, according to the

The BSS establishes an indication of the reply message, and establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier. Specifically, if the BSS setup reply message indicates that the BSS to be established is allowed to be established on the channel, the first AP establishes the to-be-established BSS on the channel identified by the identifier; if the BSS establishes a reply message indication The BSS to be established is not allowed to be established on the channel identified by the identifier, and the first AP does not establish the BSS to be established on the channel identified by the identifier.

In an optional implementation manner, when the indication information indicates that the BSS to be established is established on the channel, the BSS setup reply message returned by the channel selection control unit further includes: allowing the BSS to be established to use the The duration of the identified channel and/or the bandwidth allowed on the channel identified by the identity. It is explained herein that the channel selection control unit indicates that the bandwidth allowed to be used on the channel identified by the identity may not be equal to the bandwidth requested by the first AP, e.g., may be smaller than the bandwidth requested by the first AP.

In an optional implementation manner, when the indication information indicates that the BSS to be established is not allowed to be established on the channel that is identified by the identifier, the BSS establishment reply message further includes: the first AP resending the station The time at which the BSS establishes the request message. The priority of the BSS to be established in the embodiment is determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified data identifier related to channel selection. .

In addition, in a case where the priority of each BSS is set by the channel selection control unit in a central control manner, the first AP in this embodiment also receives an advertisement message sent by the channel selection control unit, where the advertisement message includes the Establish the priority of the BSS. Alternatively, in a case where the priority of each BSS is set in a distributed manner, the first AP in this embodiment also sets the BSS to be established according to the priority of the neighbor BSS and the parameters required to set the priority. priority. In this embodiment, the channel selection control unit can be implemented as a priority setting unit at the same time. For the content of the part, refer to the foregoing description, and details are not described herein again.

Herein, the channel selection control unit may be AC, or may be implemented in an AC, or may be an AC independent control unit or the like.

In this embodiment, when the BSS is established, when the BSS needs to be established, the AP sends a BSS setup request message to the channel selection control unit to inform the channel selection control unit of the required channel, so that the channel selection control unit can work according to the current The priority of the BSS where the AP is located on the channel and the priority of the BSS to be established, determining whether the BSS to be established is allowed to be established on the channel, and returning indication information to the AP in the BSS to be established, and the AP in the BSS is to be established. According to the indication, the BSS to be established is established or not established on the channel, that is, the channel is selected or not selected for the BSS to be established, so that a preferred channel may be selected for the BSS to be established if multiple BSSs share the channel. , to ensure the quality of service of each BSS, to avoid serious interference between the BSS.

FIG. 2 is a flowchart of another channel selection method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:

201. The channel selection control unit receives a BSS setup request message sent by the first AP, where the BSS setup request message includes an identifier of a channel required to establish a BSS.

202. The channel selection control unit is configured to perform a second operation on the channel identified by the identifier.

The priority of the BSS where the AP is located and the priority of the BSS to be established determine whether the BSS to be established is allowed to be established on the channel identified by the identifier.

203. The channel selection control unit sends a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, Causing the first AP to establish the channel on the channel identified by the identifier The BSS to be established is established or not established on the channel identified by the identifier. The present embodiment is adapted to the channel selection method provided by the foregoing embodiment, and is described from the perspective of a channel selection control unit. The channel selection control unit is mainly used to perform channel selection for establishing a BSS, and can be implemented in an AC. Or it can be implemented as an AC, and can also be any AC-independent control unit that can implement the method flow provided by this embodiment.

In this embodiment, the BSS to be established is referred to as the BSS to be established, and the AP that sends the BSS setup request message is referred to as the first AP. When the BSS is established, the first AP sends a BSS Setup Request message to the channel selection control unit to inform the channel selection control unit of the channel required for establishing the BSS. Optionally, the BSS setup request message may further include information such as bandwidth required for establishing the BSS.

After receiving the BSS setup request message sent by the first AP, the channel selection control unit determines the channel required for the BSS to be established according to the identifier of the channel required to establish the BSS included in the BSS setup request message (ie, the Identifying the identified channel) and the BSS where the second AP currently working on the channel identified by the identifier is located, and then according to the priority and location of the BSS where the second AP currently working on the channel identified by the identifier is located Determining the priority of establishing the BSS determines whether the BSS to be established is allowed to be established on the channel identified by the identifier. Then, the channel selection control unit returns a BSS setup reply message to the first AP, and carries indication information indicating whether to allow the BSS to be established to be established on the channel identified by the identifier in the BSS setup reply message.

For example: if the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, the channel selection control unit may determine to allow the BSS to be established. Establishing on the channel identified by the identifier; if the priority of the BSS to be established is lower than the BSS of the second AP currently working on the channel identified by the identifier Priority, the channel selection control unit compares the number of the second AP currently working on the channel identified by the identifier and/or the duration of the channel identified by the identifier with a corresponding threshold, if If the result is less than the threshold, it is determined that the BSS to be established is established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be in the identifier Established on the identified channel. It is noted herein that the number of second APs currently operating on the channel identified by the identity is equal to the number of BSSs on the current channel.

In addition to the manners listed above, in the case where the priority of the BSS to be established is lower than the priority of the BSS where the second AP is located, the channel selection control unit may also determine whether to allow, in combination with other factors, such as network congestion conditions or other policies. The BSS to be established is established on the channel identified by the identifier.

In an optional implementation manner, the channel selection control unit knows in advance the priority of the BSS to be established and the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, and the channel selection control unit may directly The priority of the BSS where the second AP is currently working on the channel identified by the identifier and the priority of the BSS to be established determine whether the BSS to be established is allowed to be established on the channel. For example, the channel selection control unit determines the priority of the BSS to be established and the priority of the BSS where the second AP is located according to the parameters required for setting the priority, and then sends the priority of the BSS to be established to the first AP. The priority of the BSS where the second AP is located is sent to the second AP. For example, the channel selection control unit may send an advertisement message to the first AP and the second AP, and carry the priority of the corresponding BSS in the advertisement message. That is, the BSS priority is set by the channel selection control unit in a central control manner.

In an optional implementation manner, the channel selection control unit does not know in advance the priority of the BSS to be established and the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, and the first AP may send The BSS establishment request message of the AC carries the priority of the BSS to be established, so that the channel selection control unit knows the priority of the BSS to be established. In addition, the channel selection control unit further determines whether to allow the BSS to be established in the priority according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established. Prior to establishing the identified channel, the priority of the BSS where the second AP currently working on the channel identified by the identifier is located is obtained. For example, the channel selection control unit receives the priority of the BSS where the second AP is sent by the second AP.

In an optional implementation manner, when the indication information indicates that the BSS to be established is established on the channel identified by the identifier, the BSS establishment reply message further includes: allowing the to-be-established The BSS uses the duration of the channel identified by the identity and/or the bandwidth allowed on the channel identified by the identity. It is explained herein that the channel selection control unit indicates that the bandwidth allowed to be used on the channel identified by the identifier may not be equal to the bandwidth requested by the first AP, for example, may be smaller than the bandwidth requested by the first AP.

In an optional implementation manner, when the indication information indicates that the BSS to be established is not allowed to be established on the channel that is identified by the identifier, the BSS establishment reply message further includes: the first AP resending the station The time at which the BSS establishes the request message.

In this embodiment, when the BSS is established, the AP sends a BSS setup request message to the channel selection control unit, and after receiving the BSS setup request message, the channel selection control unit may according to the priority of the BSS where the AP currently working on the channel is located. And determining the priority of the BSS to be established, determining whether the BSS to be established is established on the channel, and returning indication information to the AP in the BSS to be established, so that the AP in the BSS to be established is established on the channel according to the indication or The BSS to be established is not established, that is, the channel is selected or not selected for the BSS to be established, so that when a plurality of BSSs share a channel, a better channel is selected for the BSS to be established, and the quality of service of each BSS is ensured. Serious interference occurs between the BSSs.

Based on the foregoing BSS priority, the embodiment of the present invention further provides a channel selection method, which is used to select a channel for a BSS to be established, and is a distributed channel selection method. An application scenario of channel selection is as shown in FIG. 3A. The application scenario includes a first AP and a second AP. The BSS where the first AP is located belongs to the BSS to be established, and the BSS where the second AP belongs belongs to the established BSS. When the BSS is established, the first AP requests the second AP to establish a BSS on the channel working by the second AP (ie, the BSS to be established).

Based on the application scenario shown in FIG. 3A, another channel selection method provided by the embodiment of the present invention is shown in FIG. 3B, and the method includes:

301. The first AP sends a BSS setup request message to the second AP, to request that the BSS to be established is established on the channel currently used by the second AP.

The first AP receives the BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, where the indication information is The second AP is determined according to a priority of the BSS where the second AP is located and a priority of the BSS to be established.

303. The first AP establishes, according to the indication that the BSS establishes a reply message, on the channel. The establishment of the BSS is not mentioned or the BSS to be established is not established on the channel.

Different from the embodiment shown in FIG. 1B and FIG. 2, the channel selection method provided by this embodiment is not centrally controlled by the channel selection control unit, but is a distributed channel selection method.

In this embodiment, the BSS to be established is referred to as a BSS to be established, and the AP that sends the BSS setup request message is referred to as a first AP.

When the BSS is established, the first AP sends a BSS setup request message to the second AP to request to establish the BSS to be established on the channel currently used by the second AP, that is, whether the request to the second AP is the second or not. The AP shares the channel.

After receiving the BSS setup request message, the second AP determines whether to allow the BSS to be established to be established on the channel of the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established, and returns the BSS establishment to the first AP. The reply message carries the indication information for indicating whether to allow the BSS to be established to be established on the channel in the BSS setup reply message.

For example, the second AP may compare the priority of the BSS where the second AP is located with the priority of the BSS to be established; if the comparison result is that the priority of the BSS where the second AP is located is higher than the to-be-established a priority of the BSS, the second AP determines that the BSS to be established is not allowed to be established on the channel; if the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, And the second AP discards the BSS establishment request message, or sends a response message to the first AP, indicating that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

For example, the second AP may set the priority of the BSS where the second AP is located and the to-be-established

The priority of the BSS is compared. If the comparison result is that the priority of the BSS of the second AP is higher than the priority of the BSS to be established, the second AP may further determine whether the network congestion or other policies are based on factors such as network congestion or other policies. The BSS to be established is allowed to be established on the channel.

After receiving the BSS setup reply message, the first AP determines whether to establish the BSS to be established on the channel according to the indication of the BSS establishment reply message. In an optional implementation, before the first AP sends the BSS setup request message to the second AP, the method includes: the first AP first determining the second AP. For example, the first AP may acquire the priority of the BSS where the third AP currently working on the channel is located, according to the priority of the BSS where the third AP currently working on the channel is located, and the priority of the BSS to be established. And determining, as the second AP, a third AP in the BSS with a higher priority than the priority of the BSS to be established. The third AP described herein may be all APs or partial APs on the channel currently working, and the second AP is one or more of the third APs.

Optionally, the first AP may obtain the priority of the BSS where the third AP currently working on the channel is located: the first AP receives the beacon frame sent by the third AP currently working on the channel, where The beacon frame includes the priority of the BSS where the third AP is located. Or the first AP sends a query message to the third AP currently working on the channel, and receives the query response message returned by the third AP by the query message, where the query response message includes the third The priority of the BSS where the AP is located.

In another optional implementation manner, the first AP does not predetermine the second AP, but directly sends the BSS setup request message to the third AP currently working on the channel, to the third AP. The second AP in which the BSS priority is higher than the priority of the BSS to be established requests to establish the to-be-established BSS on the channel currently used by the second AP. In this embodiment, the third AP that receives the BSS setup request message may determine whether to return a BSS setup reply message to the first AP as the second AP according to the priority of the BSS and the priority of the BSS to be established. The third AP described herein may be all APs or partial APs on the channel currently working, and the second AP is one or more of the third APs.

In an optional implementation manner, the second AP knows in advance the priority of the BSS to be established, for example, may be acquired from the AC in advance. The second AP may determine whether to allow the to-be-established BSS to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established.

In an optional implementation manner, the second AP does not know the priority of the BSS to be established in advance, and then the first

The BSS establishment request message sent by the AP may include the priority of the BSS to be established, so that the second AP knows the priority of the BSS to be established.

In an optional implementation manner, when the indication information indicates that the BSS to be established is established on the channel, the BSS establishment reply message further includes: allowing the BSS to be established to use the duration of the channel. / or the bandwidth allowed on the channel. Here, the second AP indication The bandwidth allowed to be used on the channel may not be equal to the bandwidth requested by the first AP, for example, may be smaller than the bandwidth requested by the first AP.

In an optional implementation manner, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the first AP sending the BSS establishment request again. The time of the message.

It is noted that, in this embodiment, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified channel selection. Data identification.

In this embodiment, the first AP may further receive a priority setting unit, such as an AC, and send an advertisement message, where the advertisement message includes a priority of the BSS to be established. Alternatively, the first AP may further set the priority of the BSS to be established according to the priority of the neighbor BSS and the parameters required to set the priority.

In this embodiment, when the BSS is established, the first AP sends a BSS setup request message to the second AP on the required channel to request to establish a BSS on the channel, so that the second AP can be based on the BSS of the second AP. And the priority of the BSS to be established, determining whether to allow the to-be-established BSS to be established on the channel, and returning indication information to the first AP in the BSS to be established, where the first AP establishes on the channel according to the indication Or, the BSS to be established is not established, that is, the channel is selected or not selected for the BSS to be established, so that when a plurality of BSSs share a channel, a preferred channel is selected for the BSS to be established, and the service quality of each BSS is guaranteed. Avoid serious interference between the BSSs.

FIG. 4 is a flowchart of still another channel selection method according to an embodiment of the present invention. As shown in FIG. 4, the method includes:

401. The second AP receives the BSS setup request message sent by the first AP, where the BSS setup request message is used to request to establish the to-be-established BSS on the channel currently used by the second AP.

The second AP determines whether to allow the to-be-established BSS to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established.

403. The second AP sends a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, so that the first AP is in the Establishing the to-be-established BSS on the channel or not establishing the to-be-established BSS on the channel.

This embodiment is adapted to the embodiment shown in FIG. 3B and is a description from the perspective of the second AP. In this embodiment, the BSS to be established is referred to as a BSS to be established, and the AP that sends the BSS setup request message is referred to as a first AP.

The priority of the BSS is compared; if the comparison result is that the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, the second AP determines that the BSS to be established is not allowed to be on the channel. Establishing; if the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, the second AP discards the BSS establishment request message, or sends the message to the first AP And indicating a response message that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

For example, the second AP may compare the priority of the BSS where the second AP is located with the priority of the BSS to be established; if the comparison result is that the priority of the BSS where the second AP is located is higher than the to-be-established The priority of the BSS, the second AP may further determine whether to allow the BSS to be established to be established on the channel according to factors such as network congestion or other policies.

In an optional implementation, before the second AP receives the BSS setup request message sent by the first AP in the BSS, the second AP includes: sending, by the second AP, a beacon frame to the first AP, where the beacon The frame includes a priority of the BSS where the second AP is located, so that the first AP determines whether to send to the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established. The BSS establishes a request message. Or the second AP receives the query message sent by the first AP, And returning a query response message to the first AP, where the query response message includes a priority of the BSS where the second AP is located, so that the first AP is based on the priority of the BSS where the second AP is located, and the The priority of the BSS is to be established, and it is determined whether the BSS establishment request message is sent to the second AP.

In an optional implementation manner, the second AP knows in advance the priority of the BSS to be established, for example, may be acquired in advance from a priority setting unit, such as an AC. The second AP may determine whether to allow the to-be-established BSS to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established.

In an optional implementation manner, the second AP does not know the priority of the BSS to be established in advance, and the BSS establishment request message sent by the first AP may include the priority of the BSS to be established, so that the second AP learns the Establish the priority of the BSS.

In an optional implementation manner, when the indication information indicates that the BSS to be established is established on the channel, the BSS establishment reply message further includes: allowing the BSS to be established to use the duration of the channel. / or the bandwidth allowed on the channel. Herein, the second AP indicates that the bandwidth allowed to be used on the channel may not be equal to the bandwidth requested by the first AP, for example, may be smaller than the bandwidth requested by the first AP.

In this embodiment, when the BSS is established, the first AP sends a BSS setup request message to the second AP on the required channel, and after receiving the BSS setup request message, the second AP may be based on the priority of the BSS where the second AP is located. Determining whether the BSS to be established is allowed to be established on the channel, and returning indication information to the first AP in the BSS to be established, so that the first AP in the BSS to be established is in accordance with the indication, The BSS to be established is established or not established on the channel, that is, the channel is selected or not selected for the BSS to be established, so that in the case that multiple BSSs share the channel, a better channel is selected for the BSS to be established, and each BSS is guaranteed. Quality of service, avoiding serious interference between BSSs.

FIG. 5 is a schematic structural diagram of a channel selection apparatus according to an embodiment of the present invention. The channel selection device may be implemented as a first AP, or may be implemented in a first AP. As shown in FIG. 5, the device includes: a sending module 51, a receiving module 52, and a determining module 53.

The sending module 51 is configured to send a BSS setup request message to the channel selection control unit, where the BSS The setup request message includes an identification of the channel required to establish the BSS.

The receiving module 52 is configured to receive a BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier The indication information is determined by the channel selection control unit according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established;

The determining module 53 is connected to the receiving module 52, and is configured to establish, according to the indication of the BSS establishment reply message received by the receiving module 52, the BSS to be established or not identified by the identifier on the channel identified by the identifier. The to-be-established BSS is established on the channel.

It is noted that the channel selection control unit is mainly used for channel selection of the BSS to be established, which may be AC, or may be implemented in an AC, or may be an AC independent control unit or the like.

In an optional implementation manner, the BSS setup request message further includes a priority of the BSS to be established.

In an optional implementation, when the indication information indicates that the BSS to be established is established on the channel identified by the identifier, the BSS establishment reply message further includes: allowing the BSS to be established to use the The duration of the identified channel and/or the bandwidth allowed on the channel identified by the identity.

In an optional implementation, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS setup reply message further includes: the channel selection apparatus resending the station The time at which the BSS establishes the request message.

In this embodiment, the priority of the BSS to be established may be determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified data identifier related to channel selection. But it is not limited to this.

In an optional implementation manner, the channel selection apparatus further needs to know the priority of the BSS to be established. Level. Then, the channel selection control unit is used as the priority setting unit to determine the priority of each BSS and deliver it to the APs in each BSS. Based on this, the receiving module 52 is further configured to receive an advertisement message sent by the channel selection control unit, where the advertisement message includes a priority of the BSS to be established. Alternatively, each BSS determines its respective priority in a distributed manner. Based on this, the channel selection apparatus further includes: a priority setting module, configured to set a priority of the BSS to be established according to a priority of the neighbor BSS and a parameter required to set the priority.

The function modules of the channel selection apparatus provided in this embodiment may be used to perform the process of the embodiment of the channel selection method shown in FIG. 1B. The specific working principle is not described here. For details, refer to the description of the method embodiments.

The channel selection apparatus provided in this embodiment is implemented as the first AP or in the first AP, and when the BSS is established, sends a BSS setup request message to the channel selection control unit, and informs the channel selection control unit of the required channel, so that the channel The selection control unit may determine whether to allow the BSS to be established to be established on the channel according to the priority of the BSS where the AP currently working on the channel is located and the priority of the BSS to be established, and return to the channel selection apparatus of this embodiment. Instructing information, the channel selection apparatus of this embodiment establishes or does not establish the BSS to be established on the channel according to the indication, that is, selects or does not select the channel for the BSS to be established, so that the channel may be shared by multiple BSSs. Next, select a better channel for the BSS to be established, ensure the quality of service of each BSS, and avoid serious interference between the BSSs.

FIG. 6 is a schematic structural diagram of another channel selection apparatus according to an embodiment of the present invention. The channel selection device may be implemented as a first AP, or may be implemented in a first AP. As shown in FIG. 6, the device includes: a transmitter 61, a receiver 62, and a processor 63.

The transmitter 61 is configured to send a BSS setup request message to the channel selection control unit, where the BSS setup request message includes an identifier of a channel required to establish a BSS.

The receiver 62 is configured to receive a BSS setup reply message sent by the channel selection control unit, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier The indication information is determined by the channel selection control unit according to the priority of the BSS where the second AP is located on the channel identified by the identifier and the priority of the BSS to be established.

The processor 63 is configured to establish, according to the indication of the BSS setup reply message received by the receiver 62, the BSS to be established on the channel identified by the identifier or not to establish the to-be-established on the channel identified by the identifier. Establish a BSS. It is noted that the first AP and the second AP may be different APs in the same carrier network, or may be APs in different carrier networks. For example, the first AP may be an AP deployed by a wireless access operator that is network leased for the second time, or an AP deployed by a merchant that provides wireless access, or a BY0D of an individual. The second AP may be an AP or the like in a network deployed by an operator deploying the network.

In an optional implementation manner, the channel selection apparatus further needs to know the priority of the BSS to be established. In one case, the channel selection control unit can be used as a priority setting unit to determine the priority of each BSS and deliver it to the APs in each BSS. Based on this, the receiver 62 is further configured to receive an advertisement message sent by the channel selection control unit, where the advertisement message includes a priority of the BSS to be established. Alternatively, each BSS determines its priority in a distributed manner. Based on this, the processor 63 is further configured to set the priority of the BSS to be established according to the priority of the neighbor BSS and the parameters required to set the priority.

In a specific implementation, the processor 63 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or configured to implement the embodiment of the present invention. One or more Integrated circuit.

Further, as shown in FIG. 6, the apparatus may further include: a memory 64. The memory 64 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions. The memory 64 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.

In an alternative embodiment, the processor 63 can implement the above functions by executing a program stored in the memory 64, but is not limited thereto.

Optionally, in a specific implementation, if the transmitter 61, the receiver 62, the processor 63, and the memory 64 are implemented independently, the transmitter 61, the receiver 62, the processor 63, and the memory 64 may be connected to each other through a bus and complete each other. Communication between. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Wait. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.

Optionally, in a specific implementation, if the transmitter 61, the receiver 62, the processor 63, and the memory 64 are integrated on one chip, the transmitter 61, the receiver 62, the processor 63, and the memory 64 may pass through an internal interface. Complete communication with each other.

The channel selection apparatus provided in this embodiment can be used to perform the process of the embodiment of the channel selection method shown in FIG. 1B. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection apparatus provided in this embodiment is implemented as the first AP or in the first AP, and when the BSS is established, sends a BSS setup request message to the channel selection control unit, and informs the channel selection control unit of the required channel, so that the channel The selection control unit may determine whether to allow the BSS to be established to be established on the channel according to the priority of the BSS where the AP currently working on the channel is located and the priority of the BSS to be established, and return to the channel selection apparatus of this embodiment. The indication information, the channel selection apparatus of the embodiment establishes or does not establish the BSS to be established on the channel according to the indication, that is, selects or does not select the channel for the BSS to be established, so that the channel may be shared by multiple BSSs. Next, select a better channel for the BSS to be established, ensure the quality of service of each BSS, and avoid serious interference between the BSSs.

FIG. 7 is a schematic structural diagram of a channel selection control unit according to an embodiment of the present invention. Real The channel selection control unit provided by the embodiment is mainly used for channel selection for establishing a BSS. As shown in FIG. 7, the unit includes: a receiving module 71, a determining module 72, and a sending module 73.

The receiving module 71 is configured to receive a BSS setup request message sent by the first AP, where the BSS setup request message includes an identifier of a channel required to establish a BSS.

The determining module 72 is connected to the receiving module 71, and is configured to determine, according to the priority of the BSS where the second AP is located on the channel identified by the identifier, and the priority of the BSS to be established, whether to allow the BSS to be established. Established on the channel identified by the identity.

The sending module 73 is connected to the determining module 72, and configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indicating whether to allow the BSS to be established to be on the channel identified by the identifier. Establishing the indication information, so that the first AP establishes the to-be-established BSS on the channel identified by the identifier or does not establish the to-be-established BSS on the channel identified by the identifier.

In an optional implementation, the determining module 72 is specifically configured to determine, if the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, The BSS to be established is established on the channel identified by the identifier; if the priority of the BSS to be established is lower than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, Comparing the number of the second APs currently working on the channel identified by the identifier and/or the duration of occupying the channel identified by the identifier with a corresponding threshold, if the comparison result is less than the threshold, then Determining that the BSS to be established is established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be established on the channel identified by the identifier.

In an optional implementation manner, the unit may also be used as a priority setting unit to collectively set priorities for each BSS. Based on this, the determining module 72 is further configured to determine the priority of the BSS to be established according to the parameters required for setting the priority before determining whether to allow the BSS to be established to be established on the channel identified by the identifier. And a priority of the BSS where the second AP is located. Correspondingly, send The module 73 is further configured to send the priority of the BSS to be established to the first AP, and send the priority of the BSS where the second AP is located to the second AP.

In an alternative embodiment, each BSS determines its respective priority in a distributed manner. Based on this, the BSS setup request message sent by the first AP further includes the priority of the BSS to be established. Based on this, the receiving module 71 is further configured to: before the determining module 72 determines whether the BSS to be established is allowed to be established on the channel identified by the identifier, receive the priority of the BSS where the second AP is sent by the second AP. level.

The channel selection control unit provided in this embodiment may be implemented in an AC, or implemented as an AC, but is not limited thereto.

The function modules of the channel selection control unit provided in this embodiment can be used to perform the process of the channel selection method shown in FIG. 2. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection control unit provided in this embodiment receives the BSS setup request message sent by the first AP, and then determines whether to allow the BSS according to the priority of the BSS where the second AP is currently working on the channel and the priority of the BSS to be established. The BSS to be established is established on the channel, and returns indication information to the first AP, so that the first AP establishes or does not establish the BSS to be established on the channel according to the indication, that is, selects or does not select the BSS to be established. The channel can be used to select a better channel for the BSS to be established in the case of multiple BSS shared channels, to ensure the quality of service of each BSS, and to avoid serious interference between the BSSs.

FIG. 8 is a schematic structural diagram of another channel selection control unit according to an embodiment of the present invention. The channel selection control unit provided in this embodiment is mainly used for channel selection for establishing a BSS. As shown in FIG. 8, the unit includes: a receiver 81, a processor 82, and a transmitter 83.

The receiver 81 is configured to receive a BSS setup request message sent by the first AP, where the BSS is established. The request message includes the identity of the channel required to establish the BSS.

The processor 82 is configured to determine, according to the priority of the BSS where the second AP is located on the channel that is currently identified by the identifier, and the priority of the BSS to be established, whether to allow the BSS to be established to be identified by the identifier. Established on the channel.

a transmitter 83, configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, to And causing the first AP to establish the to-be-established BSS on the channel identified by the identifier or not to establish the to-be-established BSS on the channel identified by the identifier.

In an optional implementation, the processor 82 is specifically configured to determine, if the priority of the BSS to be established is higher than the priority of the BSS where the second AP is currently working on the channel identified by the identifier, The BSS to be established is established on the channel identified by the identifier; if the priority of the BSS to be established is lower than the priority of the BSS where the second AP currently working on the channel identified by the identifier is located, Comparing the number of the second APs currently working on the channel identified by the identifier and/or the duration of occupying the channel identified by the identifier with a corresponding threshold, if the comparison result is less than the threshold, then Determining that the BSS to be established is established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, determining that the BSS to be established is not allowed to be established on the channel identified by the identifier.

In an optional implementation manner, the unit may also be used as a priority setting unit to set priorities for each BSS. Based on this, the processor 82 is further configured to determine the priority of the BSS to be established according to the parameters required for setting the priority before determining whether to allow the BSS to be established to be established on the channel identified by the identifier. And a priority of the BSS where the second AP is located. Correspondingly, the transmitter 83 is further configured to send the priority of the BSS to be established to the first AP, and send the priority of the BSS where the second AP is located to the second AP.

In an alternative embodiment, each BSS determines its respective priority in a distributed manner. Based on this, the BSS establishment request message sent by the first AP further includes the priority of the BSS to be established. based on The receiver 81 is further configured to: before the processor 82 determines whether the BSS to be established is allowed to be established on the channel identified by the identifier, receive the priority of the BSS where the second AP is sent by the second AP. .

In particular implementations, processor 82 can be a CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

Further, as shown in FIG. 8, the unit may further include: a memory 84. The memory 84 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions. The memory 84 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.

In an alternative embodiment, processor 82 may perform the functions described above by executing a program stored in memory 84, but is not limited thereto.

Optionally, in a specific implementation, if the receiver 81, the processor 82, the transmitter 83, and the memory 84 are implemented independently, the receiver 81, the processor 82, the transmitter 83, and the memory 84 can be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 8, but it does not mean that there is only one bus or one type of total optional, in specific implementation, if the receiver 81, the processor 82, the transmitter 83 and The memory 84 is integrated on a single chip, and the receiver 81, the processor 82, the transmitter 83, and the memory 84 can communicate with each other through an internal interface.

The channel selection control unit provided in this embodiment may be used to implement the channel selection method shown in FIG. The specific working principle of the process of the embodiment is not described again. For details, refer to the description of the method embodiment. The channel selection control unit provided in this embodiment receives the BSS setup request message sent by the first AP, and then determines whether to allow the BSS according to the priority of the BSS where the second AP is currently working on the channel and the priority of the BSS to be established. The BSS to be established is established on the channel, and returns indication information to the first AP, so that the first AP establishes or does not establish a BSS to be established on the channel according to the indication, that is, selects or does not select the channel for the BSS to be established. In this way, in the case that multiple BSSs share a channel, a better channel is selected for the BSS to be established, the quality of service of each BSS is guaranteed, and serious interference between the BSSs is avoided.

FIG. 9 is a schematic structural diagram of still another channel selection apparatus according to an embodiment of the present invention. The device may be implemented as a first AP, or may be implemented in a first AP. As shown in FIG. 9, the device includes: a sending module 91, a receiving module 92, and a determining module 93.

The sending module 91 is configured to send a BSS setup request message to the second AP, to request to establish a BSS to be established on the channel currently used by the second AP.

The receiving module 92 is configured to receive a BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel; The second AP is determined according to a priority of the BSS where the second AP is located and a priority of the BSS to be established.

The determining module 93 is connected to the receiving module 92, configured to establish the BSS to be established on the channel according to the indication of the BSS establishment reply message received by the receiving module 92, or not to establish the BSS to be established on the channel. .

In an optional implementation manner, the apparatus may further include: an acquiring module. An obtaining module, configured to send, by the sending module 91, the BSS setup request message, to obtain a priority of a BSS where a third AP currently working on the channel is located, according to a BSS where a third AP currently working on the channel is located And a priority of the BSS to be established, and determining, as the second AP, a third AP in the BSS with a higher priority than the priority of the BSS to be established. Wherein, the third AP described herein may be Currently, all the APs or part of the APs on the channel are working, and the second AP is one of the third APs, and the acquiring module is configured to obtain the priority of the BSS where the third AP currently working on the channel is located, including The acquiring module is specifically configured to receive a beacon frame that is sent by the third AP that is currently working on the channel, where the beacon frame includes a priority of the BSS where the third AP is located; or The third AP that is currently working on the channel sends a query message, and receives the query response message returned by the third AP by the query message, where the query response message includes the priority of the BSS where the third AP is located. .

In an optional implementation, the sending module 91 is specifically configured to send the BSS setup request message to a third AP currently working on the channel, so that the priority of the BSS in the third AP is higher than the foregoing. The second AP that is to establish the priority of the BSS requests to establish the to-be-established BSS on the channel currently used by the second AP. In this embodiment, the apparatus in this embodiment does not predetermine the second AP, but the third AP that receives the BSS setup request message determines whether it is the second AP. The third AP described herein may be all APs or partial APs on the channel currently working, and the second AP is one or more of the third APs.

In an optional implementation manner, the BSS setup request message includes a priority of the BSS to be established.

In an optional implementation manner, when the indication information indicates that the BSS to be established is established on the channel, the BSS establishment reply message further includes: allowing the BSS to be established to use the duration of the channel. / or the bandwidth allowed on the channel.

In an optional implementation manner, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: the channel selection apparatus transmitting the BSS establishment request again. The time of the message.

In this embodiment, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established, the number of active users in the BSS to be established, and/or the specified data associated with channel selection, but Not limited to this.

In an optional implementation manner, the receiving module 92 is further configured to receive a priority setting unit, such as an advertised message sent by the AC, where the advertised message includes a priority of the BSS to be established, and is used to learn the BSS to be established. priority. Or the apparatus of this embodiment further includes: a priority setting module, configured to set the BSS to be established according to a priority of a neighbor BSS and a parameter required to set a priority priority.

The function modules of the channel selection apparatus provided in this embodiment can be used to perform the process of the channel selection method shown in FIG. 3B. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection apparatus provided in this embodiment is implemented as the first AP or configured in the first AP, and sends a BSS setup request message to the second AP on the required channel to request to establish a BSS on the channel, so that the second AP is configured. Determining whether the BSS to be established is allowed to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established, and returning the indication information to the channel selection apparatus of the embodiment, the channel of this embodiment The selecting device establishes or does not establish a BSS to be established on the channel according to the indication, that is, selects or does not select the channel for the BSS to be established, so that a preferred channel may be selected for the BSS to be established if multiple BSSs share the channel. , to ensure the quality of service of each BSS, to avoid serious interference between the BSS.

FIG. 10 is a schematic structural diagram of still another channel selection apparatus according to an embodiment of the present invention. The device may be implemented as a first AP, or may be implemented in a first AP. As shown in FIG. 10, the device includes: a transmitter 1001, a receiver 1002, and a processor 1003.

The transmitter 1001 is configured to send a BSS setup request message to the second AP to request to establish a BSS to be established on a channel currently used by the second AP.

The receiver 1002 is configured to receive a BSS setup reply message sent by the second AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, where the indication information is The second AP is determined according to a priority of the BSS where the second AP is located and a priority of the BSS to be established.

The processor 1003 is configured to establish, according to the BSS setup reply message received by the receiver 1002, the to-be-established BSS on the channel or not establish the to-be-established BSS on the channel.

In an optional implementation, the processor 1003 is further configured to send, by the transmitter 1001, the BSS setup request message, to obtain a priority of a BSS where the third AP currently working on the channel is located, where Determining, according to the priority of the BSS where the third AP is currently working on the channel and the priority of the BSS to be established, determining a third AP in the BSS having a higher priority than the priority of the BSS to be established as the Second AP. The third AP described herein may be all APs or partial APs on the channel currently working, and the second AP is one or more of the third APs.

The processor 1003 is configured to obtain the priority of the BSS where the third AP currently working on the channel is located, where the processor 1003 is specifically configured to receive, by the receiver 1002, the third AP currently working on the channel. a transmitted beacon frame, where the beacon frame includes a priority of the BSS where the third AP is located; or the processor 1003 is specifically configured to send, by using the transmitter 1001, a query message to a third AP currently working on the channel. Receiving, by the receiver 1002, the query response message returned by the third AP by the query message, where the query response message includes a priority of the BSS where the third AP is located.

In an optional implementation, the transmitter 1001 is specifically configured to send the BSS setup request message to a third AP currently working on the channel, so that the priority of the BSS in the third AP is higher than the foregoing. The second AP that is to establish the priority of the BSS requests to establish the to-be-established BSS on the channel currently used by the second AP. In this embodiment, the apparatus in this embodiment does not predetermine the second AP, but the third AP that receives the BSS setup request message determines whether it is the second AP. The third AP described herein may be all APs or partial APs on the channel currently working, and the second AP is one or more of the third APs.

In an optional implementation, the receiver 1002 is further configured to receive a priority setting unit, for example The advertised message sent by the AC, the advertised message includes the priority of the BSS to be established, and is used to learn the priority of the BSS to be established. Alternatively, the apparatus of this embodiment further includes: a priority setting module, configured to set a priority of the BSS to be established according to a priority of a neighbor BSS and a parameter required to set a priority.

In particular implementations, processor 1003 can be a CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

Further, as shown in FIG. 10, the apparatus may further include: a memory 1004. The memory 1004 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions. The memory 1004 may include a high speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

In an optional implementation, the processor 1003 can implement the above functions by executing a program stored in the memory 1004, but is not limited thereto.

Optionally, in a specific implementation, if the transmitter 1001, the receiver 1002, the processor 1003, and the memory 1004 are implemented independently, the transmitter 1001, the receiver 1002, the processor 1003, and the memory 1004 may be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 10, but it does not mean that there is only one bus or one type of bus.

Optionally, in a specific implementation, if the transmitter 1001, the receiver 1002, the processor 1003, and the memory 1004 are integrated on one chip, the transmitter 1001, the receiver 1002, the processor 1003, and the memory 1004 may pass through an internal interface. Complete communication with each other.

The channel selection device provided in this embodiment can be used to perform the process of the channel selection method shown in FIG. 3B. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection apparatus provided in this embodiment is implemented as the first AP or configured in the first AP, and sends a BSS setup request message to the second AP on the required channel to request to establish a BSS on the channel, so that the second AP is configured. Determining whether the BSS to be established is allowed to be established on the channel according to the priority of the BSS where the second AP is located and the priority of the BSS to be established, and returning the indication information to the channel selection apparatus of the embodiment, the channel of this embodiment The selecting device establishes or does not establish a BSS to be established on the channel according to the indication, that is, selects or does not select the channel for the BSS to be established, so that a preferred channel may be selected for the BSS to be established if multiple BSSs share the channel. , to ensure the quality of service of each BSS Quantity, to avoid serious interference between the BSS.

FIG. 11 is a schematic structural diagram of still another channel selection apparatus according to an embodiment of the present invention. The device may be implemented as a second AP, or may be implemented in a second AP. As shown in FIG. 11, the device includes: a receiving module 1101, a determining module 1102, and a sending module 1103.

The receiving module 1101 is configured to receive a BSS setup request message sent by the first AP, where the BSS setup request message is used by the first AP to establish a BSS to be established on a channel currently used by the second AP.

The determining module 1102 is connected to the receiving module 1101, and is configured to determine, according to the priority of the BSS where the second AP is located and the priority of the BSS to be established, whether to allow the to-be-established BSS to be established on the channel.

The sending module 1103 is connected to the determining module 1102, and configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel. So that the first AP establishes the to-be-established BSS on the channel or does not establish the to-be-established BSS on the channel.

In an optional implementation, the sending module 1 103 is further configured to receive the

Before the BSS establishes the request message, the beacon frame is sent to the first AP, where the beacon frame includes the priority of the BSS where the second AP is located, so that the first AP is based on the BSS where the second AP is located. The priority and the priority of the BSS to be established, determining whether to send the BSS establishment request message to the second AP. Or

The receiving module 1101 is further configured to receive the first before receiving the BSS setup request message.

The query message sent by the AP; the sending module 1103 is further configured to: return a query response message to the first AP, where the query response message includes a priority of the BSS where the second AP is located, so that the first AP is configured according to the Determining, by the priority of the BSS where the second AP is located, and the priority of the BSS to be established, determining whether to send the BSS establishment request message to the second AP.

In an optional implementation, the determining module 1102 is specifically configured to: where the second AP is located. The priority of the BSS is compared with the priority of the BSS to be established; if the comparison result is that the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, it is determined that the BSS to be established is not allowed to be established. Establishing on the channel; if the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, discarding the BSS establishment request message, or sending the indication to the first AP The response message that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

The function modules of the channel selection apparatus provided in this embodiment may be used to perform the process of the channel selection method embodiment shown in FIG. 4. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection apparatus provided in this embodiment is implemented as the second AP or configured in the second AP, and cooperates with the first AP to receive the BSS establishment request message sent by the first AP, and then according to the priority of the BSS where the second AP is located. And determining a priority of the BSS to be established, determining whether the BSS to be established is established on the channel, and returning indication information to the first AP, so that the first AP establishes or does not establish a BSS to be established on the channel according to the indication, that is, Selecting or not selecting the channel for the BSS to be established, so that in the case that multiple BSSs share the channel, the preferred channel is selected for the BSS to be established, the quality of service of each BSS is guaranteed, and serious interference between the BSSs is avoided.

FIG. 12 is a schematic structural diagram of still another channel selection apparatus according to an embodiment of the present invention. The device may be implemented as a second AP, or may be implemented in a second AP. As shown in FIG. 12, the device includes: a receiver 1201, a processor 1202, and a transmitter 1203.

The receiver 1201 is configured to receive a BSS setup request message sent by the first AP, where the BSS setup request message is used by the first AP to establish a BSS to be established on a channel currently used by the second AP.

The processor 1202 is configured to: according to a priority of the BSS where the second AP is located, and the to-be-established BSS The priority determines whether the BSS to be established is allowed to be established on the channel.

The transmitter 1203 is configured to send a BSS setup reply message to the first AP, where the BSS setup reply message includes indication information for indicating whether to allow the BSS to be established to be established on the channel, so that the first AP is configured. Establishing the to-be-established BSS on the channel or not establishing the to-be-established BSS on the channel.

In an optional implementation, the transmitter 1203 is further configured to: before the receiving module receives the BSS setup request message, send a beacon frame to the first AP, where the beacon frame includes the second AP The priority of the BSS, so that the first AP determines whether to send the BSS establishment request message to the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established. Or

The receiver 1201 is further configured to: before receiving the BSS setup request message, receive the query message sent by the first AP; the transmitter 1203 is further configured to return a query response message to the first AP, where the query response message includes The priority of the BSS where the second AP is located, so that the first AP determines whether to send the foregoing to the second AP according to the priority of the BSS where the second AP is located and the priority of the BSS to be established. The BSS establishes a request message.

In an optional implementation, the processor 1202 is specifically configured to compare a priority of the BSS where the second AP is located with a priority of the BSS to be established; if the comparison result is a priority of the BSS where the second AP is located The level is higher than the priority of the BSS to be established, determining that the BSS to be established is not allowed to be established on the channel; if the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established Level, discarding the BSS establishment request message, or sending a response message to the first AP indicating that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

In an optional implementation manner, the indication information indicates that the BSS to be established is allowed to be in the When the channel is established, the BSS setup reply message further includes: allowing the BSS to be established to use the channel and/or allowing bandwidth to be used on the channel.

In particular implementations, processor 1202 can be a CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

Further, as shown in FIG. 12, the apparatus may further include: a memory 1204. The memory 1204 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions. The memory 1204 may include a high speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

In an alternative embodiment, the processor 1202 can implement the above functions by executing a program stored in the memory 1204, but is not limited thereto.

Optionally, in a specific implementation, if the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 are implemented independently, the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 may be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus.

Optionally, in a specific implementation, if the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 are integrated on one chip, the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 may pass through an internal interface. Complete communication with each other.

The channel selection device provided in this embodiment may be used to perform the process of the channel selection method embodiment shown in FIG. 4, and the specific working principle is not described here. For details, refer to the description of the method embodiment.

The channel selection apparatus provided in this embodiment is implemented as the second AP or configured in the second AP, and cooperates with the first AP to receive the BSS establishment request message sent by the first AP, and then according to the priority of the BSS where the second AP is located. And determining a priority of the BSS to be established, determining whether the BSS to be established is established on the channel, and returning indication information to the first AP, so that the first AP establishes or does not establish a BSS to be established on the channel according to the indication, that is, Selecting or not selecting the channel for the BSS to be established, so that in the case that multiple BSSs share the channel, the preferred channel is selected for the BSS to be established, and each BSS is guaranteed. Quality of service, avoiding serious interference between BSSs.

One of ordinary skill in the art will appreciate that all or a portion of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the above-described method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as 匪, RAM, disk or optical disk.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A channel selection method, characterized by including:

The first access point AP sends a basic service set BSS establishment request message to the channel selection control unit, where the BSS establishment request message includes the identification of the channel required for the BSS to be established;

The first AP receives the BSS establishment reply message sent by the channel selection control unit, and the

The BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; the indication information is the channel selection control unit currently working on the channel identified by the identifier. The priority of the BSS where the second AP on the channel is located is determined by the priority of the BSS to be established;

The first AP establishes the BSS to be established on the channel identified by the identifier or does not establish the BSS to be established on the channel identified by the identifier according to the instruction of the BSS establishment reply message.

2. The method according to claim 1, wherein the BSS establishment request message further includes the priority of the BSS to be established.

3. The method according to claim 1 or 2, characterized in that, when the indication information indicates that the BSS to be established is allowed to be established on the channel identified by the identifier, the BSS establishment reply message further includes: The duration for which the BSS to be established is allowed to use the channel identified by the identifier and/or the bandwidth allowed to be used on the channel identified by the identifier.

4. The method according to any one of claims 1 to 3, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS establishment reply The message also includes: the time when the first AP sends the BSS establishment request message again.

5. The method according to any one of claims 1 to 4, characterized in that, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established and the number of active users in the BSS to be established. and/or specified data identifiers related to channel selection.

6. The method according to any one of claims 1 to 5, further comprising: the first AP receiving a notification message sent by the channel selection control unit, the notification message including the BSS to be established priority; or

The first AP sets the priority of the BSS to be established according to the priority of the neighboring BSS and the parameters required to set the priority.

7. A channel selection method, characterized by including: The channel selection control unit receives a basic service set BSS establishment request message to be sent by the first access point AP, where the BSS establishment request message includes the identification of the channel required for the BSS to be established;

The channel selection control unit determines whether to allow the BSS to be established to operate on the channel identified by the identifier based on the priority of the BSS where the second AP currently works on the channel identified by the identifier and the priority of the BSS to be established. established on the channel;

The channel selection control unit sends a BSS establishment reply message to the first AP, where the BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, to The first AP is caused to establish the BSS to be established on the channel identified by the identifier or not to establish the BSS to be established on the channel identified by the identifier.

8. The method according to claim 7, wherein the channel selection control unit selects the BSS based on the priority of the second AP currently working on the channel identified by the identifier and the priority of the BSS to be established. The stage determines whether to allow the BSS to be established to be established on the channel identified by the identifier, including:

If the priority of the BSS to be established is higher than the priority of the BSS where the second AP currently works on the channel identified by the identifier, the channel selection control unit determines to allow the BSS to be established to be in the Established on the channel identified by the identifier; or

If the priority of the BSS to be established is lower than the priority of the BSS where the second AP currently works on the channel identified by the identifier, the channel selection control unit will The number of the second AP on the channel and/or the duration of occupying the channel identified by the identifier is compared with the corresponding threshold. If the comparison result is less than the threshold, it is determined that the BSS to be established is allowed to be established in the The BSS to be established is not allowed to be established on the channel identified by the identifier if the comparison result is greater than or equal to the threshold.

9. The method according to claim 7 or 8, characterized in that, the channel selection control unit selects the BSS based on the priority of the second AP currently working on the channel identified by the identifier and the BSS to be established. The priority determines whether to allow the BSS to be established before being established on the channel identified by the identifier, including:

The channel selection control unit determines the priority of the BSS to be established and the priority of the BSS where the second AP is located based on the parameters required to set the priority;

10. The method according to claim 7 or 8, characterized in that the BSS establishment request message also includes the priority of the BSS to be established;

The channel selection control unit determines whether to allow the BSS to be established to operate on the channel identified by the identifier based on the priority of the BSS where the second AP currently works on the channel identified by the identifier and the priority of the BSS to be established. Before the channel is established, it also includes:

The channel selection control unit receives the priority of the BSS where the second AP is located sent by the second AP.

1 1. The method according to any one of claims 7 to 10, characterized in that, when the indication information indicates that the BSS to be established is allowed to be established on the channel identified by the identifier, the BSS establishment reply The message also includes: a time period for allowing the BSS to be established to use the channel identified by the identifier and/or a bandwidth allowed to be used on the channel identified by the identifier.

12. The method according to any one of claims 7-11, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS is established The reply message also includes: the time when the first AP sends the BSS establishment request message again.

13. A channel selection method, characterized by including:

The first access point AP sends a basic service set BSS establishment request message to the second AP to request that the BSS to be established be established on the channel currently used by the second AP;

The first AP receives the BSS establishment reply message sent by the second AP, and the BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel; the indication information is The second AP is determined based on the priority of the BSS where the second AP is located and the priority of the BSS to be established;

The first AP establishes the BSS to be established on the channel or does not establish the BSS to be established on the channel according to the instruction of the BSS establishment reply message.

14. The method according to claim 13, characterized in that, the first access point AP sends a basic service set BSS establishment request message to the second AP to request establishment on the channel currently used by the second AP. Before establishing BSS, include:

The first AP obtains the priority of the BSS where the third AP currently working on the channel is located, and based on the priority of the BSS where the third AP currently working on the channel is located and the priority of the BSS to be established, Determine a third AP in the BSS with a priority higher than that of the BSS to be established as the second AP.

15. The method according to claim 14, wherein the first AP obtains the priority of the BSS where the third AP currently working on the channel is located, including:

The first AP receives beacon frames sent respectively by the third AP currently working on the channel, and the beacon frames include the priority of the BSS where the third AP is located; or

The first AP sends a query message to the third AP currently working on the channel, and receives a query response message returned by the third AP in response to the query message, where the query response message includes the third AP. The priority of the BSS where the AP is located.

16. The method according to claim 13, characterized in that, the first access point AP sends a basic service set BSS establishment request message to the second AP to request establishment on the channel currently used by the second AP. BSS to be established, including:

The first AP sends the BSS establishment request message to the third AP currently working on the channel, so as to send the BSS establishment request message to the third AP whose BSS priority is higher than the priority of the BSS to be established. The second AP requests to establish the BSS to be established on the channel currently used by the second AP.

17. The method according to any one of claims 13 to 16, characterized in that the BSS establishment request message includes the priority of the BSS to be established.

18. The method according to any one of claims 13 to 17, characterized in that, when the indication information indicates that the BSS to be established is allowed to be established on the channel, the BSS establishment reply message further includes: allow The duration for which the BSS to be established uses the channel and/or the bandwidth allowed to be used on the channel.

19. The method according to any one of claims 13 to 18, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: The time when the first AP sends the BSS establishment request message again.

20. The method according to any one of claims 13 to 19, wherein the priority of the BSS to be established is determined by the number of associated users in the BSS to be established and the number of active users in the BSS to be established. and/or specified data identifiers related to channel selection.

21. The method according to any one of claims 13 to 19, further comprising: the first AP receiving a notification message sent by the priority setting unit, the notification message including the priority of the BSS to be established. level; or

22. A channel selection method, characterized by including:

The second access point AP receives the basic service set BSS establishment request message sent by the first AP, and the BSS establishment request message is used by the first AP to request the establishment of the BSS to be established on the channel currently used by the second AP;

The second AP determines whether to allow the BSS to be established to be established on the channel based on the priority of the BSS where the second AP is located and the priority of the BSS to be established;

The second AP sends a BSS establishment reply message to the first AP. The BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel, so that the first AP The BSS to be established is established on the channel or the BSS to be established is not established on the channel.

23. The method according to claim 22, characterized in that, before the second access point AP receives the basic service set BSS establishment request message sent by the first AP, it includes:

The second AP sends a beacon frame to the first AP, where the beacon frame includes the priority of the BSS where the second AP is located, so that the first AP can respond according to the priority of the BSS where the second AP is located. level and the priority of the BSS to be established, determine whether to send the BSS establishment request message to the second AP; or

The second AP receives the query message sent by the first AP and returns a query response message to the first AP. The query response message includes the priority of the BSS where the second AP is located, so that the second AP An AP determines whether to send the BSS establishment request message to the second AP based on the priority of the BSS where the second AP is located and the priority of the BSS to be established.

24. The method according to claim 22, wherein the second AP determines whether to allow the BSS to be established based on the priority of the BSS where the second AP is located and the priority of the BSS to be established. Established on the above channels, including:

If the comparison result is that the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, the second AP determines not to allow the BSS to be established to be established on the channel; or

If the comparison result is that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established, the second AP discards the BSS establishment request message, or sends a message to the first AP indicating that the BSS is to be established. The response message indicates that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established.

25. The method according to any one of claims 22 to 24, characterized in that the BSS establishment request message further includes the priority of the BSS to be established.

26. The method according to any one of claims 22 to 25, characterized in that, when the indication information indicates that the BSS to be established is allowed to be established on the channel, the BSS establishment reply message further includes: allow The duration for which the BSS to be established uses the channel and/or the bandwidth allowed to be used on the channel.

27. The method according to any one of claims 22 to 26, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: The time when the first AP sends the BSS establishment request message again.

28. A cell priority setting method, characterized by including:

The priority setting unit obtains the parameters of each basic service set BSS required to set the priority or the policy required to set the priority;

The priority setting unit sets the priority for each BSS according to the parameters of each BSS or the policy.

29. The method according to claim 28, wherein the priority of the BSS is determined by the number of associated users in the BSS, the number of active users in the BSS and/or specified data related to channel selection. logo.

30. The method according to claim 28 or 29, characterized in that the priority of the BSS is carried by the access point AP and site equipment in the BSS.

31. The method according to any one of claims 28 to 30, further comprising: the priority setting unit sending the priority of each BSS to each BSS respectively.

AP.

32. The method according to any one of claims 28 to 31, characterized in that the priority of the same BSS differs depending on the policies to be executed by the BSS.

33. A cell priority setting method, characterized by including:

The access point AP obtains the priority of the neighbor basic service set BSS and the value of the parameter used by the neighbor BSS to set the priority;

The AP determines the priority of the BSS where the AP is located based on the value of the local parameter, the priority of the neighbor BSS and the value of the parameter used by the neighbor BSS to set the priority.

34. A channel selection device, the device is a first access point AP or the device is implemented in the first AP, characterized in that the device includes:

A sending module, configured to send a basic service set BSS establishment request message to the channel selection control unit, where the BSS establishment request message includes the identification of the channel required for the BSS to be established;

A receiving module, configured to receive a BSS establishment reply message sent by the channel selection control unit, where the BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel identified by the identifier; The indication information is determined by the channel selection control unit according to the priority of the BSS where the second AP currently works on the channel identified by the identifier and the priority of the BSS to be established;

Determining module, configured to establish the BSS to be established on the channel identified by the identifier or not to establish the BSS to be established on the channel identified by the identifier according to the instruction of the BSS establishment reply message.

35. The apparatus according to claim 34, wherein the BSS establishment request message further includes the priority of the BSS to be established.

36. The apparatus according to claim 34 or 35, wherein when the indication information indicates that the BSS to be established is allowed to be established on the channel identified by the identifier, the BSS establishment reply message further includes: The duration for which the BSS to be established is allowed to use the channel identified by the identifier and/or the bandwidth allowed to be used on the channel identified by the identifier.

37. The device according to any one of claims 34 to 36, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS establishment reply The message also includes: the time when the channel selection device sends the BSS establishment request message again.

38. The device according to any one of claims 34 to 37, wherein the priority of the BSS to be established is determined by the number of associated users in the BSS to be established and the number of active users in the BSS to be established. and/or specified data identifiers related to channel selection.

39. The device according to any one of claims 34 to 38, wherein the receiving module is further configured to receive a notification message sent by the channel selection control unit, the notification message including the BSS to be established. priority; or

The device also includes:

Priority setting module, used to set the parameters required according to the priority of the neighbor BSS and the priority. Set the priority of the BSS to be established.

40. A channel selection control unit, characterized in that it includes:

A receiving module, configured to receive a basic service set BSS establishment request message sent by the first access point AP, where the BSS establishment request message includes the identification of the channel required for the BSS to be established;

Determining module, configured to determine the location of the second AP currently working on the channel identified by the identifier.

The priority of the BSS and the priority of the BSS to be established determine whether the BSS to be established is allowed to be established on the channel identified by the identifier;

A sending module, configured to send a BSS establishment reply message to the first AP, where the BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel identified by the identifier, so that The first AP establishes the BSS to be established on the channel identified by the identifier or does not establish the BSS to be established on the channel identified by the identifier.

41. The unit according to claim 40, wherein the determining module is specifically configured to determine if the priority of the BSS to be established is higher than that of the second AP currently working on the channel identified by the identifier. The priority of the BSS is determined to allow the BSS to be established to be established on the channel identified by the identifier; if the priority of the BSS to be established is lower than the priority of the BSS currently working on the channel identified by the identifier, For the priority of the BSS where the second AP is located, compare the number of the second AP currently working on the channel identified by the identifier and/or the duration of occupying the channel identified by the identifier with the corresponding threshold. If compared If the result is less than the threshold, it is determined that the BSS to be established is allowed to be established on the channel identified by the identifier; if the comparison result is greater than or equal to the threshold, it is determined that the BSS to be established is not allowed to be established on the channel identified by the identifier. established on the identified channel.

42. The unit according to claim 40 or 41, characterized in that, the determining module is further configured to, before determining whether to allow the BSS to be established to be established on the channel identified by the identifier, according to the set priority The required parameters are to respectively determine the priority of the BSS to be established and the priority of the BSS where the second AP is located;

The sending module is also configured to send the priority of the BSS to be established to the first AP, and send the priority of the BSS where the second AP is located to the second AP.

43. The unit according to claim 40 or 41, characterized in that the BSS establishment request message also includes the priority of the BSS to be established;

The receiving module is also configured to receive the location of the second AP sent by the second AP before the determining module determines whether to allow the BSS to be established to be established on the channel identified by the identifier. BSS priority.

44. The unit according to any one of claims 40 to 43, characterized in that, when the indication information indicates that the BSS to be established is allowed to be established on the channel identified by the identifier, the BSS establishment reply message It also includes: a time period for allowing the BSS to be established to use the channel identified by the identifier and/or a bandwidth allowed to be used on the channel identified by the identifier.

45. The unit according to any one of claims 40 to 44, characterized in that, when the indication information indicates that the BSS to be established is not allowed to be established on the channel identified by the identifier, the BSS establishment reply The message also includes: the time when the first AP sends the BSS establishment request message again.

46. A channel selection device, the device is a first access point AP or the device is implemented in the first AP, characterized in that the device includes:

A sending module, configured to send a basic service set BSS establishment request message to the second AP to request that the BSS to be established be established on the channel currently used by the second AP;

A receiving module, configured to receive a BSS establishment reply message sent by the second AP, where the BSS establishment reply message includes indication information indicating whether to allow the BSS to be established to be established on the channel; the indication information is The second AP is determined based on the priority of the BSS where the second AP is located and the priority of the BSS to be established;

Determining module, configured to establish the BSS to be established on the channel or not to establish the BSS to be established on the channel according to the instruction of the BSS establishment reply message.

47. The device according to claim 46, further comprising:

Obtaining module, configured to send the BSS establishment request message in the sending module, obtain the priority of the BSS where the third AP currently working on the channel is located, and obtain the priority of the BSS where the third AP currently working on the channel is located. and the priority of the BSS to be established, determine the third AP in the BSS with a priority higher than the priority of the BSS to be established as the second AP.

48. The device according to claim 47, wherein the acquisition module is specifically configured to receive beacon frames respectively sent by the third AP currently working on the channel, and the beacon frames include the third AP. The priority of the BSS where the three APs are located; or

The acquisition module is specifically configured to send a query message to a third AP currently working on the channel, and receive a query response message returned by the third AP in response to the query message, where the query response message includes the The priority of the BSS where the third AP is located.

49. The device according to claim 46, characterized in that the sending module is specifically used to Send the BSS establishment request message to a third AP currently working on the channel to request the second AP whose BSS priority is higher than the priority of the BSS to be established in the third AP. The BSS to be established is established on the channel currently used by the second AP.

50. The device according to any one of claims 46 to 49, characterized in that the BSS establishment request message includes the priority of the BSS to be established.

51. The apparatus according to any one of claims 46 to 50, wherein when the indication information indicates that the BSS to be established is allowed to be established on the channel, the BSS establishment reply message further includes: allow The duration for which the BSS to be established uses the channel and/or the bandwidth allowed to be used on the channel.

52. The device according to any one of claims 46 to 51, wherein when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: The time when the channel selection device sends the BSS establishment request message again.

53. The device according to any one of claims 46 to 52, characterized in that, the priority of the BSS to be established is determined by the number of associated users in the BSS to be established and the number of active users in the BSS to be established. and/or specified data identifiers related to channel selection.

54. The device according to any one of claims 46 to 53, wherein the receiving module is also configured to receive a notification message sent by the priority setting unit, the notification message including the priority of the BSS to be established. ; or

The channel selection device also includes:

A priority setting module, configured to set the priority of the BSS to be established based on the priority of the neighbor BSS and the parameters required to set the priority.

55. A channel selection device, the device is a second access point AP or the device is implemented in the second AP, characterized in that the device includes:

A receiving module, configured to receive a basic service set BSS establishment request message sent by the first AP, where the BSS establishment request message is used by the first AP to request the establishment of a to-be-established BSS on the channel currently used by the second AP;

A determining module, configured to determine whether to allow the BSS to be established to be established on the channel based on the priority of the BSS where the second AP is located and the priority of the BSS to be established;

A sending module, configured to send a BSS establishment reply message to the first AP, where the BSS establishment reply message includes an indication message indicating whether to allow the BSS to be established to be established on the channel. information, so that the first AP establishes the BSS to be established on the channel or does not establish the BSS to be established on the channel.

56. The device according to claim 55, wherein the sending module is further configured to send a beacon frame to the first AP before the receiving module receives the BSS establishment request message. The header frame includes the priority of the BSS where the second AP is located, so that the first AP determines whether to send data to the second AP based on the priority of the BSS where the second AP is located and the priority of the BSS to be established. Send the BSS establishment request message; or

The receiving module is also configured to receive a query message sent by the first AP before receiving the BSS establishment request message; the sending module is also configured to return a query response message to the first AP, the query response The message includes the priority of the BSS where the second AP is located, so that the first AP determines whether to send it to the second AP based on the priority of the BSS where the second AP is located and the priority of the BSS to be established. The BSS establishment request message.

57. The device according to claim 55, wherein the determination module is specifically configured to compare the priority of the BSS where the second AP is located with the priority of the BSS to be established; if the comparison result is the If the priority of the BSS where the second AP is located is higher than the priority of the BSS to be established, it is determined that the BSS to be established is not allowed to be established on the channel; if the comparison result is that the priority of the BSS where the second AP is located is low Depending on the priority of the BSS to be established, discard the BSS establishment request message, or send a message to the first AP indicating that the priority of the BSS where the second AP is located is lower than the priority of the BSS to be established. Respond to the message.

58. The device according to any one of claims 55 to 57, wherein the BSS establishment request message further includes the priority of the BSS to be established.

59. The device according to any one of claims 55 to 58, wherein when the indication information indicates that the BSS to be established is allowed to be established on the channel, the BSS establishment reply message further includes: allow The duration for which the BSS to be established uses the channel and/or the bandwidth allowed to be used on the channel.

60. The device according to any one of claims 55 to 59, wherein when the indication information indicates that the BSS to be established is not allowed to be established on the channel, the BSS establishment reply message further includes: The time when the channel selection device sends the BSS establishment request message again.