CN108012278A

CN108012278A - Manage method, access point and the website of Basic Service Set color

Info

Publication number: CN108012278A
Application number: CN201610929463.5A
Authority: CN
Inventors: 李彦淳; 李云波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-10-31
Filing date: 2016-10-31
Publication date: 2018-05-08
Anticipated expiration: 2036-10-31
Also published as: CN114071512B; CN108012278B; CN114071511B; CN114071512A; CN114071511A; CN108012278B9

Abstract

The embodiment of the invention discloses a kind of method of management BSS Color, including：AP sends instruction message to STA, and instruction message is used to indicate that BSS Color are arranged to the first BSS Color by STA, wherein, instruction message carries the first BSS Color；AP receives the confirmation message that STA is sent according to instruction message, and confirmation message is used to indicate that STA confirms BSS Color being arranged to the first BSS Color；AP is communicated according to confirmation message using the first BSS Color with STA.The method of the management BSS Color of the embodiment of the present invention, after AP receives the confirmation message of STA, it is possible to communicated using the first BSS Color with STA, the packet loss of STA can be reduced, reduce power dissipation, improve spatial multiplex ratio.

Description

Manage method, access point and the website of Basic Service Set color

Technical field

The present embodiments relate to the communications field, and relate more specifically to a kind of management Basic Service Set color (Basic Service set, BSS) color (color) method, access point (Access Point, AP) and website (Station, STA).

Background technology

BSS color domains carrying BSS color.BSS color belong to a kind of identifier of BSS, for secondary site STA Identify the source of the physical layer protocol data unit (Physical layer protocol data unit, PPDU) received, Overlapping Basic Service Set (Overlapped basic service set, OBSS) is also come from from this BSS.Due to The limited bits of BSS Color, in the place that AP is intensive, it may appear that the situation that BSS Color are repeated, causes STA cannot be distinguished by The source of the PPDU received.At the source for the PPDU that STA cannot be distinguished by receiving, STA may miss the AP of this real BSS The bag of transmission, so as to cause the waste of STA packet losses and power.And for example, the source of PPDU received is cannot be distinguished by STA When, STA may think that the bag received comes from this BSS, so that STA will not carry out spatial reuse, cause spatial multiplex ratio low.

The content of the invention

The embodiment of the present invention provides a kind of method of management BSS Color, can reduce the packet loss of STA, reduces power Waste, improve spatial multiplex ratio.

First aspect, there is provided a kind of method of management Basic Service Set color BSS Color, including：Access point AP to Site STA sends instruction message, and instruction message is used to indicate that the BSS Color of the first BSS belonging to the AP are arranged to by STA First BSS Color, wherein, instruction message carries the first BSS Color, and BSS Color are used to identify Basic Service Set BSS； AP receives the confirmation message that STA is sent according to instruction message, and confirmation message is used to indicate that STA confirms BSS Color being arranged to First BSS Color；The AP is communicated according to the confirmation message using the first BSS Color with the STA.

And the method for the management BSS Color of the embodiment of the present invention, AP indicate that STA sets BSS by instruction message Color, after AP receives the confirmation message of STA, AP can use BSS Color (that is, the first BSS after renewal Color) communicate with STA, and the BSS Color (that is, the 2nd BSS Color) before no longer using communicate with STA.

When under the BSS Color of this BSS scenes identical with the BSS Color of OBSS, the solution of the prior art It is that AP indicates that new BSS Color's and new BSS Color enables the time started to STA associated with it.AP and STA exist Enabling the time started just begins to use new BSS Color, the BSS Color before all being used before enabling the time started. But the program fails to solve the BSS of this period since conflicting to the enabling of new BSS Color BSS Color The problem of Color conflicts, so as to influence the normal transmission and spatial multiplex ratio of AP and STA.And according to embodiments of the present invention The method for managing BSS Color, AP and STA need not be adopted when the time started that enables of new BSS Color and enabled new BSS Color, so as to reduce due to the packet loss for the STA that BSS Color conflicts are brought, reduces the waste of power, and can Improve spatial multiplex ratio.

In a kind of possible implementation, before access point AP sends instruction message to site STA, this method may be used also With including：AP determines the 2nd BSS Color of the first BSS belonging to current identification AP basic clothes overlapping with the first BSS's of mark The BSS Color of business collection OBSS are identical.

The method of the management BSS Color of the embodiment of the present invention can be when the first BSS be identical with the BSS Color of OBSS Perform, can also periodically or non-periodically perform.When under the BSS Color same scenes applied to the first BSS and OBSS, AP Firstly the need of confirming that the first BSS is identical with the BSS Color of OBSS, instruction message just then is sent to STA, indicates STA by BSS Color is arranged to the first BSS Color.

In a kind of possible implementation, AP determine the 2nd BSS Color of the first BSS belonging to current identification AP with The BSS Color of the Overlapping Basic Service Set OBSS of first BSS are identical, including：

When AP receives the first down physical layer protocol Data Unit PPDU, and the BSS that the first downlink PPDU is carried When Color is the 2nd BSS Color, or

When AP receives the second downlink PPDU, the BSS Color that the second downlink PPDU is carried are the 2nd BSS Color, and When being transmitted in the first BSS without device-to-device (Device to Device, D2D), or

When AP is received the upstream response messages of the first trigger frame that non-AP is sent are responded, and upstream response messages carry When BSS Color are the 2nd BSS Color, or

When AP receives the second trigger frame, and the BSS Color of the second trigger frame carrying are the 2nd BSS Color, or

When AP receives the first beacon frame, and the BSS Color of the first beacon frame carrying are the 2nd BSS Color,

AP determines that the first BSS Color are identical with the BSS Color for identifying OBSS.

By the above method, AP can voluntarily determine that the first BSS Color are identical with the BSS Color for identifying OBSS. In a kind of possible implementation, AP determines the 2nd BSS Color's and the first BSS of the first BSS belonging to current identification AP The BSS Color of Overlapping Basic Service Set OBSS are identical, including：AP receives the conflict report that STA is sent, and conflict report is used to refer to The BSS Color that OBSS is known in indicating are the 2nd BSS Color；AP is reported according to conflict determines the first BSS Color and mark The BSS Color of OBSS are identical.

The implementation finds that the first BSS Color are identical with the BSS Color for identifying OBSS for STA, sends and rushes to AP Prominent report.AP is reported according to conflict, it may be determined that the first BSS Color are identical with the BSS Color for identifying OBSS.

Alternatively, conflict report can include the BSS Color of OBSS.It is to be understood that the OBSS of the first BSS is probably one It is a, it is also possible to multiple.When the BSS Color of the BSS Color and any OBSS of the first BSS are identical, STA sends to AP and rushes Prominent report, conflict report can include the BSS Color of all OBSS of the first BSS.First BSS is knowing all OBSS's After BSS Color, when the first BSS Color are set, avoid the BSS Color's of the first BSS Color and all OBSS as far as possible Conflict.

Alternatively, conflict report can also include the BSSID and BSSID and BSS of the BSS Color, OBSS of OBSS The correspondence of Color.In this way, the feelings being different from the BSS Color of all OBSS are thought in the first BSS Color deficiencies When under condition, new BSS Color can be arranged to and the AP overlapped coverages are minimum or less OBSS by the first BSS BSS Color, i.e. the first BSS Color.

In a kind of possible implementation, access point AP sends instruction message to site STA, including：AP broadcast second Beacon frame, media access control (MAC) Service Data Unit (Media Access Control Service of the second beacon frame Data Unit, MSDU) carry the first BSS Color；Wherein, AP receives the confirmation message that STA is sent according to instruction message, bag Include：AP receives STA according to the confirmation message of the second beacon frame information, and the value in the BSS Color domains of confirmation message is the first BSS Color。

In a kind of possible implementation, access point AP sends instruction message to site STA, including：AP is sent to STA 3rd trigger frame, the 3rd trigger frame carry out uplink for triggering STA using the first BSS Color, the 3rd trigger frame MSDU carries the first BSS Color；Wherein, AP receives the confirmation message that STA is sent according to instruction message, including：AP receives STA The responsive data frame sent according to the 3rd trigger frame, the value in the BSS Color domains of responsive data frame is the first BSS Color.

In a kind of possible implementation, the mac frame head of instruction message includes the first field and the second field, and first Value in field is used to indicating that the second field to be BSS Color value fields, and the value in the second field is the first BSS Color, or The MSDU of instruction message carries the 2nd BSS Color；Wherein, AP receives the confirmation message that STA is sent according to instruction message, bag Include：AP receives confirmation (Acknowledgement, ACK) frame that STA is sent according to instruction message.

In a kind of possible implementation, AP receives confirmation messages of the STA according to the 3rd beacon frame information, including：AP STA is received according to the probe request or association request frame of the 3rd beacon frame information, probing response frame or association request frame are used for Instruction STA confirms BSS Color being arranged to the first BSS Color.

In a kind of possible implementation, before access point AP sends instruction message to site STA, this method may be used also With including：AP receives the probe request that STA is sent；Wherein, access point AP sends instruction message to site STA, including：AP roots Probing response frame is sent to STA according to probe request, probing response frame is used to indicate that BSS Color are arranged to the first BSS by STA Color, wherein, probing response frame carries the first BSS Color；Wherein, AP receives STA and is disappeared according to the confirmation that instruction message is sent Breath, including：AP receives the association request frame that STA is sent according to probing response frame, and association request frame is used to indicate that STA confirmations will BSS Color are arranged to the first BSS Color.

In a kind of possible implementation, access point AP sends instruction message to site STA, including：

AP sends instruction message to STA, and starts timer；Method further includes：AP disables second after timer expiry BSS Color。

When AP is to STA transmission instruction messages, while start timer.If before timer has not timed out, associated with AP All STA receive instruction message, and have sent confirmation message to AP.So, AP and all STA associated with it When being communicated, the first BSS Color will be all used, disable the 2nd BSS Color.Before timer has not timed out, if with The STA for the message that has that no indication is received in the associated all STA of AP, or receive instruction message but do not reply confirmation message STA, then AP is before timer expiry still using the 2nd BSS Color and the STA, Huo Zheyou of no indication is received message The STA for receiving instruction message but not replying confirmation message communicates, and uses the first BSS Color with replying confirmation message STA communicate.And after timer expiry, AP will stop using the 2nd BSS Color, using the first BSS Color with When all STA associated with it are communicated.By such method, can further reduce due to BSS Color conflict bands The packet loss of the STA come, reduces the waste of power, and can improve spatial multiplex ratio.

Second aspect, there is provided a kind of method of management Basic Service Set color BSS Color, including：Site STA receives The instruction message that access point AP is sent, instruction message are used to indicate that STA sets the BSS Color of the first BSS belonging to the AP The first BSS Color are set to, wherein, instruction message carries the first BSS Color, and BSS Color are used to identify Basic Service Set BSS；STA sends confirmation message according to instruction message to AP, and confirmation message is used to indicate that STA confirms BSS Color being arranged to First BSS Color；The STA is communicated using the first BSS Color with the AP.

In a kind of possible implementation, before the instruction message that site STA receives that access point AP is sent, this method It can also include：STA determines overlapping bases of the 2nd BSS Color of the first BSS belonging to current identification AP with identifying the first BSS The BSS Color of this services set OBSS are identical；STA sends conflict report to AP, and conflict report is used for AP signs OBSS BSS Color be the 2nd BSS Color.

In a kind of possible implementation, STA determines the 2nd BSS Color of the first BSS belonging to current identification AP The BSS Color of Overlapping Basic Service Set OBSS with identifying the first BSS are identical, including：

When STA receives first message, the BSS Color domains of first message are the 2nd BSS Color, and first message When value in source address field is different from the MAC Address of the STA AP stored, or

When STA receives second message, the BSS Color domains of second message are the 2nd BSS Color, and second message Value in source address field is different from the MAC Address of the STA AP stored, and the signal strength of second message is more than predetermined threshold value When,

STA determines that the first BSS Color are identical with the BSS Color for identifying OBSS.

In a kind of possible implementation, site STA receives the instruction message that access point AP is sent, including：STA is received The beacon frame of AP broadcast, the media access control Medium Access Control (MAC) Service Data Unit MSDU of beacon frame carry the first BSS Color；Wherein, STA sends confirmation message according to instruction message to AP, including：STA sends confirmation message according to beacon frame to AP, confirmation message The value in BSS Color domains is the first BSS Color.It is to be understood that beacon frame here is the second beacon frame described in first aspect.

In a kind of possible implementation, site STA receives the instruction message that access point AP is sent, including：STA is received The trigger frame that AP is sent, trigger frame carry out uplink for triggering STA using the first BSS Color, and the MSDU of trigger frame takes The first BSS Color of band；Wherein, STA sends confirmation message according to instruction message to AP, including：STA is sent out according to trigger frame to AP Responsive data frame is sent, the value in the BSS Color domains of responsive data frame is the first BSS Color.It is to be understood that trigger frame here is The 3rd trigger frame described in first aspect.

In a kind of possible implementation, the mac frame head or MSDU of instruction message include the first field and the second word Section, the value in the first field are used to indicating that the second field to be BSS Color value fields, and the value in the second field is the first BSS Color, or the MSDU of instruction message carry the 2nd BSS Color；Wherein, STA sends confirmation message according to instruction message to AP, Including：STA is sent according to instruction message to AP confirms ACK frames.

In a kind of possible implementation, STA sends confirmation message according to beacon frame to AP, including：STA is according to beacon Frame sends probe request or association request frame to AP, and probing response frame or association request frame are used to indicate that STA is confirmed BSS Color is arranged to the first BSS Color.

In a kind of possible implementation, before the instruction message that site STA receives that access point AP is sent, this method It can also include：STA sends probe request to AP；Wherein, site STA receives the instruction message that access point AP is sent, including： STA receives the probing response frame that AP is sent according to probe request, and probing response frame is used to indicate that STA sets BSS Color For the first BSS Color, wherein, probing response frame carries the first BSS Color；Wherein, STA is sent according to instruction message to AP Confirmation message, including：STA sends association request frame according to probing response frame to AP, and association request frame is used to indicate that STA confirmations will BSS Color are arranged to the first BSS Color.

The third aspect, there is provided a kind of access point AP, for performing any possible reality of first aspect or first aspect Method in existing mode.Specifically, access point AP includes being used for any possible reality for performing first aspect or first aspect The unit of method in existing mode.

Fourth aspect, there is provided a kind of site STA, for performing any possible realization of second aspect or second aspect Method in mode.Specifically, which includes being used for any possible realization side for performing second aspect or second aspect The unit of method in formula.

5th aspect, there is provided a kind of access point AP, access point AP include receiver, transmitter, processor, memory And bus system.Wherein, receiver, transmitter, processor and memory are connected by bus system, and memory refers to for storage Order, processor are used for the instruction for performing memory storage, and to control, receiver receives signal and control transmitter sends signal.And And when processor performs the instruction of memory storage, perform so that processor performs first aspect or any of first aspect can Method in the implementation of energy.

6th aspect, there is provided a kind of site STA, the site STA include receiver, transmitter, processor, memory and Bus system.Wherein, receiver, transmitter, processor and memory are connected by bus system, and memory refers to for storage Order, processor are used for the instruction for performing memory storage, and to control, receiver receives signal and control transmitter sends signal.And And when processor performs the instruction of memory storage, perform so that processor performs second aspect or any of second aspect can Method in the implementation of energy.

7th aspect, there is provided a kind of computer-readable medium, for storing computer program, which includes using In the instruction for performing the method in any possible implementation of first aspect or first aspect.

Eighth aspect, there is provided a kind of computer-readable medium, for storing computer program, which includes using In the instruction for performing the method in any possible implementation of second aspect or second aspect.

Brief description of the drawings

Fig. 1 is the schematic diagram of an application scenarios according to embodiments of the present invention.

Fig. 2 is the indicative flowchart of the method for the management BSS Color of the embodiment of the present invention.

Fig. 3 is the schematic block diagram of the access point AP of the embodiment of the present invention.

Fig. 4 is the schematic block diagram of the site STA of the embodiment of the present invention.

Fig. 5 is the schematic diagram of the access point AP of the embodiment of the present invention.

Fig. 6 is the schematic diagram of the site STA of the embodiment of the present invention.

Embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is described.

The embodiment of the present invention can be applied to WLAN (Wireless Local Area Network, WLAN), mesh Preceding WLAN accepted standards are IEEE802.11 series.WLAN can include multiple BSS, and the network node in BSS is STA, STA The website (none Access Point Station, non-AP STA) of website AP and non-access point class including access point class. Each BSS can include an AP and multiple non-AP STA for being associated with the AP.

Communication citing of the embodiment of the present invention between STA and AP, it can also be used to the situation of STA and STA communications.

AP is also referred to as wireless access points or hot spot etc..AP is the access point that mobile subscriber enters cable network, main Be deployed in inside family, inside buildings and garden, typical covering radius for tens meters to rice up to a hundred, it is of course also possible to portion It is deployed on open air.For AP equivalent to a connection wired network and the bridge of wireless network, its main function is by each wireless network client End connects together, then by wireless network access network based on ethernet.Specifically, AP can carry Wireless Fidelity (Wireless Fidelity, WiFi) chip terminal device or the network equipment.Alternatively, AP can be to support setting for 802.11ax standards Standby, still optionally further, which can be to support that 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a etc. are a variety of The equipment of WLAN standards.

Non-AP STA can be wireless communications chips, wireless senser or wireless communication terminal.Such as：WiFi is supported to lead to The mobile phone of communication function, the tablet computer for supporting WiFi communication function, the set-top box for supporting WiFi communication function, support WiFi The smart television of communication function, the intelligent wearable device for supporting WiFi communication function, support the vehicle-mounted logical of WiFi communication function Believe equipment and support the computer of WiFi communication function.Alternatively, website can support 802.11ax standards, further optional Ground, the website support a variety of WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.

802.11ax introduces identifiers of the BSS color as BSS, and received PPDU is identified for auxiliary reception STA Source, such as still come from OBSS from this OBSS so that STA can use spatial reuse Channel Access Mechanism or It is to save power.

BSS is included in efficient signaling field (High efficiency SIGNAL field, HE-SIG) in PPDU Color domains (standard is defined as 6 bits at present, you can BSS color values are an integer values between 0 to 63), are used To indicate the BSS color of the transmission frame.In general, BSS color are set by AP.AP selectes the BSS color of this BSS Afterwards, selected BSS color values are informed to all STA of this BSS.For all STA of this BSS when sending PPDU, all using should BSS color, i.e., be arranged to the BSS color by the value in BSS color domains.In general, a BSS only has a BSS color. The BSS color of different BSS are set by respective AP, in theory for, the BSS color of different BSS are different. Therefore, a STA, can be by reading BSS color domains, to judge that received PPDU comes from this after a PPDU is received BSS or OBSS.But also there is exception.For example, in place intensive AP, can due to the limited bits of BSS Color The situation that BSS Color are repeated can occur, cause STA to cannot be distinguished by the source of PPDU received.

Fig. 1 shows the schematic diagram of an application scenarios of the embodiment of the present invention.As shown in Figure 1, BSS1 include AP101, STA103 and STA104.The OBSS of BSS1 is BSS2, and BSS2 includes AP102 and STA105.STA103 is located at AP101 and AP102 Overlay area in overlapping region.

Conflict in the BSS Color of BSS1 and BSS2, i.e. in the case that the BSS Color of BSS1 and BSS2 are identical, when When STA103 detects a certain PPDU for single user downstream packets form or from mode of extension downlink, due to not carried in the PPDU The mark (Identification, ID) of STA103, therefore STA103 thinks that AP101 may just be its transmission, then STA103 pairs This bag receives.Alternatively, when STA103 detects that a certain PPDU is the more of the ID that head (such as HE-SIG-B) includes STA103 During user's downstream packets, STA103 also will be considered that AP101 may just be its transmission, then STA103 receives this PPDU.And if The PPDU is really what AP102 was sent, then may result in the downstream packets that STA103 misses real AP101.And for example, it is if a certain PPDU be really STA105 send single user uplink, extended distance pattern uplink or do not include STA103 ID multi-user During uplink packet, due to not carrying the ID of STA103 in the PPDU, so STA103 thinks the logical of AP101 just participation and STA104 Letter, then STA103 dormancy during this period, so as to cause STA103 to miss the downstream packets of real AP101.In short, in BSS1 and BSS2 BSS Color it is identical in the case of, STA103 may be received and be decoded AP102 or the PPDU of STA105, cause STA103 The downstream packets of real AP101 are missed, influence the normal transmission of STA103 and AP101.In addition, in the BSS of BSS1 and BSS2 In the case that Color is identical, STA103 may think that the bag actually from BSS2 received comes from BSS1, so that STA103 is not Spatial reuse can be carried out, causes spatial multiplex ratio low.

When BSS Color conflict, the solution of the prior art is that AP indicates new BSS to STA associated with it Color's and new BSS Color enables the time started.AP and STA just begins to use new BSS enabling the time started Color, the BSS Color before all being used before enabling the time started.But the program fails to solve from BSS Color Conflict to new BSS Color the problem of enabling the BSS Color conflicts for starting this period, so as to influence AP's and STA Normal transmission and spatial multiplex ratio.

For this reason, an embodiment of the present invention provides a kind of method of management BSS Color, in the following, to the embodiment of the present invention The method of management BSS Color is described in detail.

The method that Fig. 2 shows the management BSS Color of the embodiment of the present invention.

The STA#i of S210, AP into STA#1~STA#m associated with it sends instruction message.I ∈ [1, n], n >=1, and n≤m。

Specifically, before AP sends instruction message, the BSS of AP and the BSS (that is, this BSS) where STA#1~STA#m Color is the 2nd BSS Color, is transmitted between AP and STA#1~STA#m using the 2nd BSS Color.Hereinafter, in order to BSS where description convenience, AP and STA#1~STA#m is referred to as the first BSS.It is understood that AP and STA#1~STA#m it Between be transmitted using the 2nd BSS Color, represent between AP and STA#1~STA#m when transmitting, the PPDU that AP or STA are sent The value in BSS Color domains be the first BSS Color.In some cases, for example, the OBSS of the first BSS and the first BSS When BSS Color are identical, alternatively, when AP needs timing or not timing replacement BSS Color, AP, which can pass through to send, carries first BSS Color are arranged to the first BSS Color by the instruction message of BSS Color, instruction STA#i.In other words, AP pass through to Part or all of STA in STA#1~STA#m sends instruction message, indicates STA#i, and AP will use first when communicating with BSS Color, and stop using the 2nd BSS Color.

It is to be understood that it can also be unicast messages that the instruction message in the embodiment of the present invention, which can be broadcast message,.

S220, STA#i send confirmation message after instruction message is received, to AP.Confirmation message is used to indicate that STA#i is true Recognize and BSS Color are arranged to the first BSS Color.

Specifically, STA#i, by sending confirmation message to AP, the STA#i has been indicated to AP after instruction message is received Through BSS Color are arranged to the first BSS Color.In other words, STA#i shows that the STA#i exists by sending confirmation message When being interacted with AP, the first BSS Color will be used, and, which can identify that AP is sent out using the first BSS Color The downlink transfer risen.

S230, AP are communicated according to confirmation message using the first BSS Color with the STA#i.

Specifically, AP can confirm that STA#i is properly received instruction message, and can confirm that STA#i by confirmation message BSS Color are arranged to the first BSS Color.So, AP communicates with the STA#i, will use the first BSS Color, and do not use the 2nd BSS Color.

The method of the management BSS Color of the embodiment of the present invention, AP indicate that STA sets BSS Color by instruction message, After AP receives the confirmation message of STA, AP can use renewal after BSS Color (that is, the first BSS Color) with STA communicates, and the BSS Color (that is, the 2nd BSS Color) before no longer using communicate with STA.So as to, When under scene identical with the BSS Color of OBSS the BSS Color of this BSS, the management BSS Color's of the embodiment of the present invention Method can reduce the packet loss of STA, reduce the waste of power, and can improve spatial multiplex ratio.

Alternatively, following several ways can be used to perform for S210 and S220, AP and STA.In the following, AP will be sent The these types of mode that instruction message and STA send confirmation message is described in detail.

Mode one

AP sends instruction message by broadcasting the second beacon frame to STA, and STA is sent out after the second beacon frame is received to AP Send confirmation message.

Specifically, AP can be by carrying the broadcast beacon frame of the first BSS Color (for the ease of distinguishing and conveniently retouching State, referred to herein as the second beacon frame) send instruction message to STA#i.Because STA#i is currently merely able to identification BSS Color domains It is worth for the physics packet header of the first BSS Color, therefore, AP can pass through carries the first BSS in the MSDU of the second beacon frame Color, new BSS Color are indicated to STA#i.STA#i can be obtained after the second beacon frame is received by parsing MSDU The first BSS Color are obtained, and store the first BSS Color.BSS Color are arranged to the first BSS Color in STA#i Afterwards, by sending confirmation message to AP, BSS Color are arranged to the first BSS Color by instruction STA#i.Afterwards, AP with When STA#i is communicated, the first BSS Color will be used.

Mode two

AP sends instruction message by sending the 3rd trigger frame to STA, and STA is sent out after the 3rd trigger frame is received to AP Send confirmation message.

Specifically, AP can indicate that STA#i uses the first BSS by downlink trigger frame (here, i.e. the 3rd trigger frame) Color carries out uplink.Similarly, reference pattern one, because STA#i is currently merely able to the value in identification physics BSS Color domains For the physics packet header of the first BSS Color, therefore, AP can carry the first BSS Color by the MSDU in the 3rd trigger frame, BSS Color are arranged to the first BSS Color by instruction STA#i.STA#i passes through parsing after the 3rd trigger frame is received MSDU can obtain the first BSS Color.Then, STA#i responds the triggering of AP, using the first BSS Color in AP initiations Row transmission.That is, STA#i responds the triggering of AP, and the value that BSS Color domains are sent to AP is the confirmation message of the first BSS Color, BSS Color are arranged to the first BSS Color by instruction STA#i.Afterwards, when AP is communicated with STA#i, the will be used One BSS Color.

Mode three

AP can carry BSS Color types values and BSS Color values by being sent to STA in mac frame head or MSDU BSS Color are arranged to the first BSS Color by instruction message, instruction STA.After STA receives the instruction message, by AP Send and confirm ACK frames, confirm that BSS Color have been arranged to the first BSS Color by the STA to AP.

Specifically, mac frame head includes reserved field, if the two of which field in protocol definition reserved field can To represent BSS Color type fields and BSS Color value fields respectively, then, AP can be referred to by setting the two fields Show that BSS Color are arranged to the first BSS Color by STA.In order to facilitate description, described two field point stated can be deserved to be called Not Wei the first field and the second field, wherein, the first field can be used to indicate that BSS Color types, and the second field can be used In expression BSS Color values.For example, if the value in the first field is 0, the value in the second field is BSS Color Value.So, AP can be by being arranged to 0 by the value in the first field in instruction message, and the value in the second field is arranged to BSS Color are arranged to the first BSS Color by one BSS Color, instruction STA#i.STA#i receives the instruction message, passes through The first field and the second field are parsed, the first BSS Color can be obtained.Then, STA#i replys ACK frames, indicates that it correctly connects Receive the instruction message.AP is according to ACK frames, it may be determined that BSS Color are arranged to the first BSS Color by STA#i.It Afterwards, when AP is communicated with STA#i, the first BSS Color will be used.

It is to be understood that ACK frames can use the first BSS Color to encapsulate, the first BSS Color can not also be used to encapsulate, The embodiment of the present invention is not particularly limited this.

Mode four：AP can indicate STA by BSS Color by the instruction message of the first BSS Color of carrying in MSDU It is arranged to the first BSS Color.After STA receives the instruction message, sent to AP and confirm ACK frames.

Specifically, which can be behavior pattern instruction (Operation Mode Notification) frame, should The first BSS Color can be carried in the MSDU of behavior pattern instruction frame.STA#i is receiving the behavior pattern instruction of AP transmissions After frame, by parsing the MSDU in behavior pattern instruction frame, the first BSS Color can be obtained.Then, STA#i replys ACK Frame, indicates that it is properly received the instruction message.AP is according to ACK frames, it may be determined that BSS Color are arranged to by STA#i One BSS Color.Afterwards, when AP is communicated with STA#i, the first BSS Color will be used.

Alternatively, the method for the management BSS Color of the embodiment of the present invention is using the BSS Color and OBSS with this BSS The identical scenes of BSS Color under when, before S210, this method further includes：AP determines the second of the first BSS of current identification The BSS Color of overlapping OBSSs of the BSS Color with identifying the first BSS are identical.The OBSS of this BSS, i.e. the first BSS are determined in AP BSS Color when being the 2nd BSS Color, AP can send instruction message to STA#i, and instruction STA#i set BSS Color It is set to the first BSS Color.

Alternatively, AP can voluntarily determine that the BSS Color of OBSS are the 2nd BSS Color.Specifically, following several Under either case in situation, AP can determine that the BSS Color of OBSS are the 2nd BSS Color.

Situation one

When AP receives the first downlink PPDU, and the BSS Color that first downlink PPDU is carried are the 2nd BSS Color。

Specifically, AP can determine that the first PPDU is downlink PPDU according to the physics packet header of the first PPDU, because being Downlink PPDU, so AP thinks the PPDU that the AP that the first PPDU is OBSS is sent, rather than STA in the first BSS is sent. If the value in the BSS Color domains of the first PPDU is the 2nd BSS Color, then, AP is the BSS Color that can determine that OBSS Also it is the 2nd BSS Color.

Situation two

When AP receives the second downlink PPDU, the BSS Color that second downlink PPDU is carried are the 2nd BSS Color, And transmitted in the first BSS without device-to-device D2D.

Specifically, AP can determine that the 2nd PPDU is downlink PPDU according to the physics packet header of the 2nd PPDU, because being Downlink PPDU, so AP can consider the PPDU that the AP that the 2nd PPDU is OBSS is sent, rather than the STA hairs in the first BSS Send.Further, if in the first BSS when being transmitted without device-to-device D2D, AP can further confirm that this second PPDU is exactly the PPDU that the AP of OBSS is sent.Detect that the value in the BSS Color domains of the 2nd PPDU is the 2nd BSS in AP Color, AP can determine that the BSS Color of OBSS are the 2nd BSS Color.

It is to be understood that the first PPDU and the 2nd PPDU in above-mentioned can be identical PPDU or different PPDU, The embodiment of the present invention is not construed as limiting this.

Situation three

The first of the non-AP transmissions upstream response messages for triggering message are responded when AP is received, and upstream response messages are taken The BSS Color of band are the 2nd BSS Color.

Specifically, AP can interpolate that whether the upstream response messages received are in response to the triggering message of AP transmissions Upstream response messages.For the ease of understanding and distinguishing, the triggering message sent of the AP in this BSS is known as the first triggering message. In embodiments of the present invention, if the upstream response messages that AP is received are not in response to the upper of the first triggering message of AP transmissions Row response message, then AP can determine the triggering message that the AP that the upstream response messages are in response in OBSS is sent, the uplink Response message is that the STA in OBSS is sent.And if the value in the BSS Color domains that uplink response disappears is the 2nd BSS Color, then AP can determine that the BSS Color of OBSS are the 2nd BSS Color.

Situation four

When AP receives the second trigger frame, and the BSS Color that the second trigger frame carries are the 2nd BSS Color.

Specifically, AP can determine that second trigger frame is downstream message according to the physics packet header of second trigger frame, And then can determine that second trigger frame is the downstream message that the AP in OBSS is sent, rather than the STA in this BSS is sent to AP Message.If the value in the BSS Color domains of second trigger frame is the 2nd BSS Color, AP is the BSS that can determine that OBSS Color is the 2nd BSS Color.

Situation five

When AP receives the first beacon frame, and the BSS Color that the first beacon frame carries are the 2nd BSS Color.

Specifically, AP can determine that first beacon frame is the AP in OBSS according to the physics packet header of first beacon frame The beacon frame of transmission.If AP detects the value in the BSS Color domains of first beacon frame when being the 2nd BSS Color, AP The BSS Color that can determine that OBSS are the 2nd BSS Color.

Alternatively, STA#j can be the 2nd BSS Color in the BSS Color for the OBSS for determining the BSS belonging to the AP When, send conflict report to AP.AP can be reported according to conflict, it may be determined that the BSS Color of OBSS are the 2nd BSS Color。

It is to be understood that STA#j can be any STA#j in STA#1~STA#m.That is, in the embodiment of the present invention In, as long as any when to detect the BSS Color of OBSS with the associated STA of AP be the 2nd BSS Color, AP can be true This fixed BSS is identical with the BSS Color of OBSS.Usually, STA#j is in the overlay area of the AP in the AP and OBSS The STA of overlapping region.

Specifically, when STA#j receives the first message for using the value in BSS Color domains for the 2nd BSS Color, and When value in the source address field of one message is different from the MAC Address of the STA AP stored, STA#j can be determined belonging to the AP The BSS Color of OBSS of BSS be the 2nd BSS Color.Particularly, MACs of the AP to STA#j downstream messages sent Location should be the MAC Address of STA#j storages.When STA#j detects MAC Address in first message with the MAC of STA#j storages Location is different, then STA#j can determine that first message is not that the AP is sent, and should be that the AP of OBSS is sent.STA#j is once It was found that the problem of BSS Color conflict, can send conflict report to AP, the BSS Color of the OBSS of the AP BSS are informed For the 2nd BSS Color,

Further, STA#j can also be sent out when the signal strength for detecting first message is more than predetermined threshold value, then to AP Conflict is sent to report.Specifically, if the signal strength that STA#j receives a certain downstream packets is less than threshold value, STA#j thinks this Bag is not that the AP is sent, so the bag can be abandoned.And when the signal of the STA#j bags (for example, first message) received is light Degree is when being more than predetermined threshold value, STA#j think the bag may AP transmissions, so as to be parsed to the bag.And when STA#j according to MAC Address determines that first message is not that the AP is sent, then it is the AP transmissions of OBSS that can determine first message.At this time, STA#AP sends conflict report, and the BSS Color for informing the OBSS of the AP BSS are also the 2nd BSS Color.

Non-limiting as example, conflict report can include the BSS Color of OBSS.It is to be understood that OBSS is probably one It is a, it is also possible to multiple.When the BSS Color of the BSS Color and any OBSS of the first BSS are identical, STA sends to AP and rushes Prominent report, conflict report can include the BSS Color of all OBSS of the first BSS.First BSS is knowing all OBSS's After BSS Color, when the first BSS Color are set, avoid the BSS Color's of the first BSS Color and all OBSS as far as possible Conflict.

Further, the correspondence of BSSID and BSSID and BSS Color that conflict report can also be including OBSS. Because BSS Color are limited, when the first BSS Color cannot be different from the BSS Color of all OBSS, AP is known all OBSS BSS Color,, can be by BSS when resetting the BSS Color of this BSS and after the BSSID of OBSS Color is arranged to and the AP overlapped coverages region is minimum or the BSS Color, i.e. the first BSS of less OBSS Color。

It is to be understood that the MAC Address of STA#j storages is probably one, it is also possible to multiple.When MAC Address is multiple, MAC Address is corresponded with STA packets.Each STA packets include one or more of STA#1~STA#m STA.STA is grouped Technology is referred to the prior art, for sake of simplicity, be not described further herein.

Alternatively, when AP is to STA transmission instruction messages, timer can be started at the same time.After timer expiry, AP is disabled 2nd BSS Color.

Specifically, when AP is to STA transmission instruction messages, while timer is started.If before timer has not timed out, STA#1~STA#m receives instruction message, and have sent confirmation message to AP.So, AP and STA#1~STA#m into During row communication, the first BSS Color will be all used, disable the 2nd BSS Color.Before timer has not timed out, if STA#1 The STA for the message that has that no indication is received in~STA#m, or have the STA for receiving instruction message but not replying confirmation message, that AP is before timer expiry still using the 2nd BSS Color and the STA of no indication is received message, or receive finger The STA for showing message but not replying confirmation message communicates, and is communicated using the first BSS Color with STA#i.And fixed When device time-out after, AP will stop using the 2nd BSS Color, be communicated using the first BSS Color with STA#1~STA#m When.

Alternatively, AP can be by rebuilding the BSS that BSS Color are the first BSS Color, migration STA#i to reconstruction BSS Color are arranged to the first BSS Color by the method for BSS, instruction STA#i.

Non-limiting as example, instruction message can be above-mentioned 3rd beacon frame.STA#i, which is received, carries the first BSS After the 3rd beacon frame of Color, it can re-start and associate with AP.STA#i can be or logical by sending probe request to AP Cross to AP and send association request frame, indicate that BSS Color are arranged to the first BSS Color by the STA#i.

Non-limiting as example, STA#i first can send probe request to AP, and request is associated with AP.AP exists The probe request of STA#i transmissions is received, probing response frame is replied to AP.The probing response frame carry BSS Color be First BSS Color.After STA#i receives probing response frame, BSS Color are arranged to the first BSS Color.And lead to Cross to AP and send association request frame, request is associated with AP, while indicates that the STA#i has been set BSS Color to AP For the first BSS Color.

Above in conjunction with Fig. 1 and Fig. 2, the method for management BSS Color according to embodiments of the present invention has been carried out in detail Explanation.Hereinafter, with reference to Fig. 3 to Fig. 6, the equipment of management BSS Color according to embodiments of the present invention is illustrated.

Fig. 3 shows the schematic block diagram of access point AP 300 according to embodiments of the present invention.As shown in figure 3, the access Point AP 300 includes：Transmitting element 310, receiving unit 320 and communication unit 330.

Transmitting element 310, for sending instruction message to site STA, the instruction message is used to indicate the STA by base This services set color BSS Color are arranged to the first BSS Color, wherein, the instruction message carries the first BSS Color, BSS Color are used to identify Basic Service Set BSS.

Receiving unit 320, the confirmation message sent for receiving the STA according to the instruction message, the confirmation disappear Breath is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color；

Communication unit 330, the confirmation message for being received according to the receiving unit 320 use the first BSS Color communicates with the STA.

The each unit of access point AP 300 according to embodiments of the present invention and above-mentioned other operations or function are respectively for reality The corresponding flow that the existing above method is performed by access point AP.For sake of simplicity, details are not described herein again.

Therefore, the AP of the embodiment of the present invention indicates that STA sets BSS Color by instruction message, receives STA's in AP After confirmation message, AP can use the BSS Color (that is, the first BSS Color) after renewal to communicate with STA, without BSS Color (that is, the 2nd BSS Color) before using again communicate with STA.

Fig. 4 shows the schematic block diagram of site STA 400 according to embodiments of the present invention.As shown in figure 4, the website STA 400 includes：Receiving unit 410, transmitting element 420 and communication unit 430.

Receiving unit 410, for receiving the instruction message of access point AP transmissions, the instruction message is used to indicate described Basic Service Set color BSS Color are arranged to the first BSS Color by STA, wherein, the instruction message carries described first BSS Color, BSS Color are used to identify Basic Service Set BSS.

Transmitting element 420, disappears for sending confirmation to the AP according to the instruction message that the receiving unit receives Breath, the confirmation message are used to indicate that the STA confirms BSS Color being arranged to the first BSS Color；

Communication unit 430, for being communicated using the first BSS Color with the AP.

The each unit of site STA 400 according to embodiments of the present invention and above-mentioned other operations or function are respectively in order to realize The corresponding flow that the above method is performed by site STA.For sake of simplicity, details are not described herein again.

Therefore, the STA of the embodiment of the present invention is according to the instruction message of AP by setting BSS Color, and by AP Confirmation message is replied, enables to BSS Colors (that is, first of the AP after it can use renewal after receiving confirmation message BSS Color) communicate with STA, and the BSS Color (that is, the 2nd BSS Color) before no longer using and STA is carried out Communication.

Fig. 5 is the schematic diagram of access point AP 500 according to embodiments of the present invention.As shown in figure 5, the access point AP 500 includes：Receiver 510, transmitter 520, processor 530, memory 540 and bus system 550.Wherein, receiver 510th, transmitter 520, processor 530 and memory 540 are connected by bus system 550, which refers to for storage Order, the processor 530 are used for the instruction for performing the memory 540 storage, to control receiver 510 to receive signal, and control hair Device 520 is sent to send signal.

Transmitter 520, for sending instruction message to site STA, the instruction message is used to indicate that the STA will be basic Services set color BSS Color are arranged to the first BSS Color, wherein, the instruction message carries the first BSS Color, BSS Color are used to identify Basic Service Set BSS.

Receiver 510, the confirmation message sent for receiving the STA according to the instruction message, the confirmation message For indicating that the STA confirms BSS Color being arranged to the first BSS Color.

Processor 530, is communicated according to the confirmation message using the first BSS Color with the STA.

It is to be understood that in embodiments of the present invention, which can be central processing unit (central Processing unit, referred to as " CPU "), which can also be other general processors, digital signal processor (DSP), application-specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other programmable logic device, discrete gate Or transistor logic, discrete hardware components etc..General processor can be that microprocessor or the processor can also It is any conventional processor etc..

The memory 540 can include read-only storage and random access memory, and to processor 530 provide instruction and Data.The a part of of memory 540 can also include nonvolatile RAM.For example, memory 540 can also be deposited Store up the information of device type.

The bus system 550 can also include power bus, controlling bus and status signal in addition to including data/address bus Bus etc..But for the sake of clear explanation, various buses are all designated as bus system 550 in figure.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 530 Or the instruction of software form is completed.With reference to the management BSS Color of the embodiment of the present invention method the step of can direct body Completion now is performed for hardware processor, or completion is performed with the hardware in processor and software module combination.Software module can With positioned at random access memory, flash memory, read-only storage, programmable read only memory or electrically erasable programmable memory, post In the storage medium of this areas such as storage maturation.The storage medium is located at memory 540, and processor 530 is read in memory 540 Information, with reference to its hardware complete the above method the step of.To avoid repeating, it is not detailed herein.

Each unit in access point AP 500 according to embodiments of the present invention and above-mentioned other operations or function respectively in order to Perform the corresponding flow performed in the above method by access point AP.For sake of simplicity, details are not described herein again.

Therefore, the AP of the embodiment of the present invention indicates that STA sets BSS Color by instruction message, and is received in AP After the confirmation message of STA, AP can use the BSS Color (that is, the first BSS Color) after renewal to communicate with STA, And the BSS Color (that is, the 2nd BSS Color) before no longer using communicate with STA.Also, implement according to the present invention The access point AP, AP and STA of example need not be adopted when the time started that enables of new BSS Color and enabled new BSS Color, from And can reduce due to the packet loss for the STA that BSS Color conflicts are brought, the waste of power is reduced, and space can be improved Reusability.

Fig. 6 is the schematic diagram of site STA 600 according to embodiments of the present invention.As shown in fig. 6, the site STA 600 include：Receiver 610, transmitter 620, processor 630, memory 640 and bus system 650.Wherein, receiver 610, Transmitter 620, processor 630 and memory 640 are connected by bus system 650, which for storing instruction, should Processor 630 is used for the instruction for performing the memory 640 storage, to control receiver 610 to receive signal, and controls transmitter 620 send signal.

Receiver 610, for receiving the instruction message of access point AP transmissions, the instruction message is used to indicate the STA Basic Service Set color BSS Color are arranged to the first BSS Color, wherein, the instruction message carries the first BSS Color, BSS Color are used to identify Basic Service Set BSS.

Transmitter 620, for sending confirmation message to the AP according to the instruction message that the receiving unit receives, The confirmation message is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color.

Processor 630, for being communicated using the first BSS Color with the AP.

The memory 640 can include read-only storage and random access memory, and to processor 630 provide instruction and Data.The a part of of memory 640 can also include nonvolatile RAM.For example, memory 640 can also be deposited Store up the information of device type.

The bus system 650 can also include power bus, controlling bus and status signal in addition to including data/address bus Bus etc..But for the sake of clear explanation, various buses are all designated as bus system 650 in figure.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 630 Or the instruction of software form is completed.With reference to the management BSS Color of the embodiment of the present invention method the step of can direct body Completion now is performed for hardware processor, or completion is performed with the hardware in processor and software module combination.Software module can With positioned at random access memory, flash memory, read-only storage, programmable read only memory or electrically erasable programmable memory, post In the storage medium of this areas such as storage maturation.The storage medium is located at memory 640, and processor 630 is read in memory 640 Information, with reference to its hardware complete the above method the step of.To avoid repeating, it is not detailed herein.

Each unit in site STA 600 according to embodiments of the present invention and above-mentioned other operations or function are respectively in order to hold The corresponding flow performed in the row above method by website.For sake of simplicity, details are not described herein again.

Therefore, the STA of the embodiment of the present invention is according to the instruction message of AP by setting BSS Color, and by AP Confirmation message is replied, enables to BSS Colors (that is, first of the AP after it can use renewal after receiving confirmation message BSS Color) communicate with STA, and the BSS Color (that is, the 2nd BSS Color) before no longer using and STA is carried out Communication.Also, access point AP, AP and STA according to embodiments of the present invention need not be when new when enabling beginning of BSS Color Between adopt and enable new BSS Color, so as to reduce due to the packet loss for the STA that BSS Color conflicts are brought, reduce power Waste, and spatial multiplex ratio can be improved.

It is to be understood that the terms "and/or", is only a kind of incidence relation for describing affiliated partner, expression can deposit In three kinds of relations, for example, A and/or B, can represent：Individualism A, while there are A and B, these three situations of individualism B. In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.

It is to be understood that in various embodiments of the invention, the size of the sequence number of above-mentioned each process is not meant to execution sequence Priority, the execution sequence of each process should determine with its function and internal logic, the implementation without tackling the embodiment of the present invention Journey forms any restriction.

Those of ordinary skill in the art may realize that each exemplary list described with reference to the embodiments described herein Member and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually Performed with hardware or software mode, application-specific and design constraint depending on technical solution.Professional technician Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed Scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Division, is only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit Close or communicate to connect, can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separate, be shown as unit The component shown may or may not be physical location, you can with positioned at a place, or can also be distributed to multiple In network unit.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs 's.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also That unit is individually physically present, can also two or more units integrate in a unit.

If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with It is stored in a computer read/write memory medium.Based on such understanding, the technical solution of the application is substantially in other words The part to contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be People's computer, server, or network equipment etc.) perform all or part of step of each embodiment the method for the present invention. And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

The above, is only the embodiment of the application, but the protection domain of the application is not limited thereto, any Those familiar with the art can readily occur in change or replacement in the technical scope that the application discloses, and should all contain Cover within the protection domain of the application.Therefore, the protection domain of the application should be based on the protection scope of the described claims.

Claims

A kind of 1. method of management Basic Service Set color BSS Color, it is characterised in that including：

Access point AP sends instruction message to site STA, and the instruction message is used to indicate the STA by the belonging to the AP The BSS Color of one BSS are arranged to the first BSS Color, wherein, the instruction message carries the first BSS Color, BSS Color are used to identify Basic Service Set BSS；

The AP receives the confirmation message that the STA is sent according to the instruction message, and the confirmation message is used to indicate described STA confirms BSS Color being arranged to the first BSS Color；

The AP is communicated according to the confirmation message using the first BSS Color with the STA.
2. the method as described in claim 1, it is characterised in that described access point AP to site STA send instruction message it Before, the method further includes：

The AP determines weights of the 2nd BSS Color of the first BSS belonging to AP described in current identification with identifying the first BSS The BSS Color of folded Basic Service Set OBSS are identical.
3. method as claimed in claim 2, it is characterised in that the AP determines the first BSS belonging to AP described in current identification The 2nd BSS Color it is identical with the BSS Color of the Overlapping Basic Service Set OBSS of the first BSS, including：

When the AP receives the first down physical layer protocol Data Unit PPDU, and the BSS that the first downlink PPDU is carried When Color is the 2nd BSS Color, or

When the AP receives the second downlink PPDU, the BSS Color that the second downlink PPDU is carried are the 2nd BSS Color, and in the first BSS when being transmitted without device-to-device D2D, or

The upstream response messages of the first trigger frame that the non-AP is sent are responded when the AP is received, and uplink response disappears When the BSS Color that breath carries are the 2nd BSS Color, or

When the AP receives the second trigger frame, and the BSS Color that second trigger frame carries are the 2nd BSS During Color, or

When the AP receives the first beacon frame, and the BSS Color that first beacon frame carries are the 2nd BSS During Color,

The AP determines that the first BSS Color are identical with the BSS Color for identifying the OBSS.
4. method as claimed in claim 2 or claim 3, it is characterised in that the AP determines first belonging to AP described in current identification The 2nd BSS Color of BSS are identical with the BSS Color of the Overlapping Basic Service Set OBSS of the first BSS, including：

The AP receives the conflict report that the STA is sent, BSS of the conflict report for OBSS described in sign Color is the 2nd BSS Color；

The AP determines that the first BSS Color are identical with the BSS Color for identifying the OBSS according to the conflict report.
5. such as the method any one of claim 1-4, it is characterised in that described access point AP is sent to site STA to be referred to Show message, including：

The AP broadcasts the second beacon frame, and the media access control Medium Access Control (MAC) Service Data Unit MSDU of second beacon frame is carried The first BSS Color；

Wherein, the AP receives the confirmation message that the STA is sent according to the instruction message, including：

The AP receives the STA according to the confirmation message of second beacon frame information, the BSS of the confirmation message The value in Color domains is the first BSS Color.
6. such as the method any one of claim 1-4, it is characterised in that described access point AP is sent to site STA to be referred to Show message, including：

The AP sends the 3rd trigger frame to the STA, and the 3rd trigger frame is used to trigger the STA using described first BSS Color carry out uplink, and the MSDU of the 3rd trigger frame carries the first BSS Color；

Wherein, the AP receives the confirmation message that the STA is sent according to the instruction message, including：

The AP receives the responsive data frame that the STA is sent according to the 3rd trigger frame, the BSS of the responsive data frame The value in Color domains is the first BSS Color.
7. such as the method any one of claim 1-4, it is characterised in that the mac frame head of the instruction message includes First field and the second field, the value in first field are used to indicating that second field to be BSS Color value fields, institute It is the first BSS Color to state the value in the second field, or

The MSDU of the instruction message carries the 2nd BSS Color；

Wherein, the AP receives the confirmation message that the STA is sent according to the instruction message, including：

The AP receives the confirmation ACK frames that the STA is sent according to the instruction message.
8. method as claimed in claim 5, it is characterised in that the AP receives the STA and sent out according to the 3rd beacon frame The confirmation message sent, including：

The AP receives the STA according to the probe request or association request frame of the 3rd beacon frame information, the detection Response frame or the association request frame are used to indicate that the STA confirms BSS Color being arranged to the first BSS Color.
9. such as the method any one of claim 1-4, it is characterised in that sent in described access point AP to site STA Before instruction message, the method further includes：

The AP receives the probe request that the STA is sent；

Wherein, described access point AP sends instruction message to site STA, including：

The AP sends probing response frame according to the probe request to the STA, and the probing response frame is used to indicate institute State STA and BSS Color are arranged to the first BSS Color, wherein, the probing response frame carries the first BSS Color；

Wherein, the AP receives the confirmation message that the STA is sent according to the instruction message, including：

The AP receives the association request frame that the STA is sent according to the probing response frame, and the association request frame is used to refer to Show that the STA confirms BSS Color being arranged to the first BSS Color.
10. such as the method any one of claim 2-9, it is characterised in that described access point AP is sent to site STA to be referred to Show message, including：

The AP sends the instruction message to the STA, and starts timer；

The method further includes：

The AP disables the 2nd BSS Color after the timer expiry.
A kind of 11. method of management Basic Service Set color BSS Color, it is characterised in that including：

Site STA receives the instruction message that access point AP is sent, and the instruction message is used to indicate the STA by belonging to the AP The BSS Color of the first BSS be arranged to the first BSS Color, wherein, the instruction message carries the first BSS Color, BSS Color are used to identify Basic Service Set BSS；

The STA sends confirmation message according to the instruction message to the AP, and the confirmation message is used to indicate that the STA is true Recognize and BSS Color are arranged to the first BSS Color；

The STA is communicated using the first BSS Color with the AP.
12. method as claimed in claim 11, it is characterised in that receive the instruction of access point AP transmissions in the site STA Before message, the method further includes：

The STA determines the 2nd BSS Color of the first BSS belonging to AP described in current identification with identifying the first BSS's The BSS Color of Overlapping Basic Service Set OBSS are identical；

The STA sends conflict report to the AP, and the conflict report is used for the BSS to OBSS described in the AP signs Color is the 2nd BSS Color.
13. method as claimed in claim 12, it is characterised in that the STA determines first belonging to AP described in current identification The BSS Color of Overlapping Basic Service Set OBSSs of the 2nd BSS Color of BSS with identifying the first BSS are identical, including：

When the STA receives first message, the BSS Color domains of the first message are the 2nd BSS Color, and institute State the value in the source address field of first message it is different from the MAC Address of the STA AP stored when, or

When the STA receives second message, the BSS Color domains of the second message are the 2nd BSS Color, and institute It is different from the MAC Address of the STA AP stored to state the value in the source address field of second message, and described second disappears When the signal strength of breath is more than predetermined threshold value,

The STA determines that the first BSS Color are identical with the BSS Color for identifying the OBSS.
14. such as the method any one of claim 11-13, it is characterised in that site STA receives what access point AP was sent Instruction message, including：

The STA receives the beacon frame of the AP broadcast, the media access control Medium Access Control (MAC) Service Data Unit MSDU of the beacon frame Carry the first BSS Color；

Wherein, the STA sends confirmation message according to the instruction message to the AP, including：

The STA sends the confirmation message according to the beacon frame to the AP, the BSS Color domains of the confirmation message It is worth for the first BSS Color.
15. such as the method any one of claim 11-13, it is characterised in that the site STA receives access point AP hairs The instruction message sent, including：

The STA receives the trigger frame that the AP is sent, and the trigger frame uses the first BSS for triggering the STA Color carries out uplink, and the MSDU of the trigger frame carries the first BSS Color；

Wherein, the STA sends confirmation message according to the instruction message to the AP, including：

The STA sends responsive data frame according to the trigger frame to the AP, the BSS Color domains of the responsive data frame It is worth for the first BSS Color.
16. such as the method any one of claim 11-13, it is characterised in that the mac frame head of the instruction message or MSDU includes the first field and the second field, and the value in first field is used to indicate that second field is BSS Color value fields, the value in second field is the first BSS Color,

Or the MSDU of the instruction message carries the 2nd BSS Color；

Wherein, the STA sends confirmation message according to the instruction message to the AP, including：

The STA is sent according to the instruction message to the AP confirms ACK frames.
17. method as claimed in claim 14, it is characterised in that the STA sends institute according to the beacon frame to the AP Confirmation message is stated, including：

The STA sends probe request or association request frame according to the beacon frame to the AP, the probing response frame or The association request frame is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color.
18. such as the method any one of claim 11-13, it is characterised in that receive access point AP in the site STA Before the instruction message of transmission, the method further includes：

The STA sends probe request to the AP；

Wherein, the site STA receives the instruction message that access point AP is sent, including：

The STA receives the probing response frame that the AP is sent according to the probe request, and the probing response frame is used to refer to Show that BSS Color are arranged to the first BSS Color by the STA, wherein, the probing response frame carries described first BSS Color；

Wherein, the STA sends confirmation message according to the instruction message to the AP, including：

The STA sends association request frame according to the probing response frame to the AP, and the association request frame is used to indicate institute STA is stated to confirm BSS Color being arranged to the first BSS Color.
A kind of 19. access point AP, it is characterised in that including：

Transmitting element, for sending instruction message to site STA, the instruction message is used to indicate the STA by the AP institutes The Basic Service Set color BSS Color of the first BSS belonged to are arranged to the first BSS Color, wherein, the instruction message carries The first BSS Color, BSS Color are used to identify Basic Service Set BSS；

Receiving unit, the confirmation message sent for receiving the STA according to the instruction message, the confirmation message are used to refer to Show that the STA confirms BSS Color being arranged to the first BSS Color；

Communication unit, the confirmation message for being received according to the receiving unit use the first BSS Color and institute STA is stated to communicate.
20. AP as claimed in claim 19, it is characterised in that the AP is further included：

Determination unit, for determining the 2nd BSS Color and mark described first of the first BSS belonging to AP described in current identification The BSS Color of the Overlapping Basic Service Set OBSS of BSS are identical.
21. AP as claimed in claim 20, it is characterised in that when the receiving unit receives

First down physical layer protocol Data Unit PPDU, and the BSS Color that the first downlink PPDU is carried are described the During two BSS Color, or

Second downlink PPDU, the BSS Color that the second downlink PPDU is carried are the 2nd BSS Color, and described the When being transmitted in one BSS without device-to-device D2D, or

Respond the upstream response messages for the first trigger frame that the non-AP is sent, and the BSS that the upstream response messages carry When Color is the 2nd BSS Color, or

Second trigger frame, and the BSS Color that second trigger frame carries are when being the 2nd BSS Color, or

First beacon frame, and the BSS Color that first beacon frame carries are when being the 2nd BSS Color,

The determination unit is used to determine that the first BSS Color are identical with the BSS Color for identifying the OBSS.
22. the AP as described in claim 20 or 21, it is characterised in that the receiving unit is additionally operable to：

The conflict report that the STA is sent is received, the conflict report is institute for the BSS Color of OBSS described in sign State the 2nd BSS Color；

The determination unit is specifically used for：

Determine that the first BSS Color are identical with the BSS Color for identifying the OBSS according to the conflict report.
23. such as the AP any one of claim 19-22, it is characterised in that the transmitting element is specifically used for：

Broadcast the second beacon frame, the media access control Medium Access Control (MAC) Service Data Unit MSDU of second beacon frame carries described the One BSS Color；

Wherein, the receiving unit is specifically used for：

Receive the confirmation messages of the STA according to second beacon frame information, the BSS Color domains of the confirmation message Value be the first BSS Color.
24. such as the AP any one of claim 19-22, it is characterised in that

The transmitting element is specifically used for：

The 3rd trigger frame is sent to the STA, the 3rd trigger frame uses the first BSS for triggering the STA Color carries out uplink, and the MSDU of the 3rd trigger frame carries the first BSS Color；

Wherein, the receiving unit is specifically used for：

Receive the responsive data frame that the STA is sent according to the 3rd trigger frame, the BSS Color domains of the responsive data frame Value be the first BSS Color.
25. such as the AP any one of claim 19-22, it is characterised in that the mac frame head of the instruction message includes First field and the second field, the value in first field are used to indicating that second field to be BSS Color value fields, institute It is the first BSS Color to state the value in the second field, or

The MSDU of the instruction message carries the 2nd BSS Color；

Wherein, the receiving unit is specifically used for：

Receive the confirmation ACK frames that the STA is sent according to the instruction message.
26. AP as claimed in claim 23, it is characterised in that the receiving unit is specifically used for：

Receive probe request or association request frame of the STA according to the 3rd beacon frame information, the probing response frame Or the association request frame is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color.
27. such as the AP any one of claim 19-22, it is characterised in that the receiving unit is additionally operable to：

Receive the probe request that the STA is sent；

Wherein, the transmitting element is specifically used for：

Probing response frame is sent to the STA according to the probe request, the probing response frame is used to indicate that the STA will BSS Color are arranged to the first BSS Color, wherein, the probing response frame carries the first BSS Color；

Wherein, the receiving unit is specifically used for：

The association request frame that the STA is sent according to the probing response frame is received, the association request frame is used to indicate described STA confirms BSS Color being arranged to the first BSS Color.
28. such as the AP any one of right 20-27, it is characterised in that the transmitting element is specifically used for：

The instruction message is sent to the STA, and starts timer；

The AP is further included：

Processing unit, for after the timer expiry, disabling the 2nd BSS Color.
A kind of 29. site STA, it is characterised in that including：

Receiving unit, for receiving the instruction message of access point AP transmissions, the instruction message is used to indicate the STA by described in The Basic Service Set color BSS Color of the first BSS belonging to AP are arranged to the first BSS Color, wherein, the instruction message The first BSS Color are carried, BSS Color are used to identify Basic Service Set BSS；

Transmitting element, it is described for sending confirmation message to the AP according to the instruction message that the receiving unit receives Confirmation message is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color；

Communication unit, for being communicated using the first BSS Color with the AP.
30. STA as claimed in claim 29, it is characterised in that the STA is further included：

Determination unit, for determining the 2nd BSS Color and mark described first of the first BSS belonging to AP described in current identification The BSS Color of the Overlapping Basic Service Set OBSS of BSS are identical；

The transmitting element is additionally operable to, and sends conflict report to the AP, the conflict report is used for the AP signs The BSS Color of the OBSS are the 2nd BSS Color.
31. STA as claimed in claim 30, it is characterised in that when the receiving unit receives first message, described first The BSS Color domains of message are the 2nd BSS Color, and the value in the source address field of the first message with it is described When the MAC Address of the AP of STA storages is different, or

Second message, the BSS Color domains of the second message are the 2nd BSS Color, and the source of the second message Value in address field is different from the MAC Address of the STA AP stored, and the signal strength of the second message is big When predetermined threshold value,

The determination unit is used to determine that the first BSS Color are identical with the BSS Color for identifying the OBSS.
32. such as the STA any one of claim 29-31, it is characterised in that the receiving unit is specifically used for：

The beacon frame of the AP broadcast is received, the media access control Medium Access Control (MAC) Service Data Unit MSDU of the beacon frame carries institute State the first BSS Color；

Wherein, the transmitting element is specifically used for：

The confirmation message is sent to the AP according to the beacon frame, the value in the BSS Color domains of the confirmation message is institute State the first BSS Color.
33. such as the STA any one of claim 29-31, it is characterised in that

The receiving unit is specifically used for：

The STA receives the trigger frame that the AP is sent, and the trigger frame uses the first BSS for triggering the STA Color carries out uplink, and the MSDU of the trigger frame carries the first BSS Color；

Wherein, the transmitting element is specifically used for：

The STA sends responsive data frame according to the trigger frame to the AP, the BSS Color domains of the responsive data frame It is worth for the first BSS Color.
34. such as the STA any one of claim 29-31, it is characterised in that the mac frame head of the instruction message or MSDU includes the first field and the second field, and the value in first field is used to indicate that second field is BSS Color value fields, the value in second field is the first BSS Color,

Or the MSDU of the instruction message carries the 2nd BSS Color；

Wherein, the transmitting element is specifically used for：

Sent according to the instruction message to the AP and confirm ACK frames.
35. STA as claimed in claim 32, it is characterised in that the transmitting element is specifically used for：

Probe request or association request frame, the probing response frame or the association are sent to the AP according to the beacon frame Claim frame is used to indicate that the STA confirms BSS Color being arranged to the first BSS Color.
36. such as the STA any one of claim 29-31, it is characterised in that the transmitting element is additionally operable to：

Probe request is sent to the AP；

Wherein, the receiving unit is specifically used for：

The probing response frame that the AP is sent according to the probe request is received, the probing response frame is used to indicate described BSS Color are arranged to the first BSS Color by STA, wherein, the probing response frame carries the first BSS Color；

Wherein, the transmitting element is specifically used for：

Association request frame is sent to the AP according to the probing response frame, the association request frame is used to indicate that the STA is true Recognize and BSS Color are arranged to the first BSS Color.