CN107210847A

CN107210847A - A kind of channel competition method and relevant apparatus

Info

Publication number: CN107210847A
Application number: CN201580075906.2A
Authority: CN
Inventors: 罗俊; 马驰翔; 林英沛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-02-12
Filing date: 2015-02-12
Publication date: 2017-09-26
Anticipated expiration: 2035-02-12
Also published as: CN107210847B; WO2016127371A1

Abstract

A kind of channel competition method and relevant apparatus, this method include：Access point judges the channel competition bag that the either site that this Basic Service Set BSS whether is parsed on present channel is sent；If so, described access point determines that this BSS competes the present channel success；Include the up or down dispatch information of multiple websites for described BSS to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, the descending PPDU or trigger frame using the successful present channel of competition.AP channel competition success rate can be improved by implementing above-mentioned technical proposal.

Description

A kind of channel competition method and relevant apparatus

Technical field

The present invention relates to field of communication technology more particularly to a kind of channel competition method and relevant apparatus.

Background technique

WLAN (wireless local area network based on 802.11ac, WLAN) system is referred to as 802.11ac system, 802.11ac system uses orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) modulation system.In 802.11ac system, it may include multiple basic service sets (Basic Service Set, BSS), it may include an access point (Access Point in each BSS, AP) and one with the associated website (Station of the AP, STA), AP or STA are when needing to carry out data transmission, it can detecte the signal detection energy of present channel, if the signal detection energy is less than clear channel assessment (CCA) (Clear Channel Assessment, CCA) thresholding then carries out channel competition, and carries out data transmission in channel competition success；Wherein, signal detection energy is smaller, shows that present channel is more idle.

As WLAN is widely used, its networking covering is gradually by less scenes of users such as office or family lans, develop into the intensive scene of the users such as conference and exhibition center, stadiums and airport, high school district, and traditional 802.11ac system has been unable to satisfy demand of the user to radio speed and network performance in the type scene.In order to provide a user preferably radio speed and network performance, 802.11ax system is come into being.802.11ax system uses orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA) modulation system.It may include an AP in 802.11ax system, in each BSS and multiple with the associated STA of the AP, after AP carries out running time-frequency resource scheduling to STA, STA just can be carried out transmitting uplink data.In practice, it has been found that AP needs successful contention that could carry out running time-frequency resource scheduling to STA to channel, if AP competitive channel fails, running time-frequency resource scheduling can not be carried out to STA, to influence the transmitting uplink data of STA.

Summary of the invention

The embodiment of the invention provides a kind of channel competition method and relevant apparatus, can be improved the channel of AP Compete the probability of success.

First aspect provides a kind of channel competition method, comprising:

Access point judges the channel competition packet that the either site that this basic service set BSS whether is parsed on present channel is sent；If so, described access point determines that this BSS competes the present channel success；

It include the uplink or down dispatch information for multiple websites of described BSS using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.

With reference to first aspect, in the first possible implementation of the first aspect, after determining that described BSS competes the present channel success, and using the successful present channel of competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Record parses within a preset period of time sends the mark of multiple websites of described BSS of channel competition packet in the successful present channel of competition；

It is described to compete successful present channel to described BSS broadcast downstream PPDU or trigger frame using described, comprising:

Determine the scheduling information of the corresponding multiple websites of mark of the multiple website；

Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of the multiple website；

The downlink PPDU or trigger frame of the scheduling information including the multiple website are broadcasted to described BSS using the successful present channel of competition.

With reference to first aspect or the first possible implementation of first aspect, in the second possible implementation of the first aspect, after determining that described BSS competes the present channel success, and using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Count the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet；

Multiple websites to be scheduled are determined according to the channel state information for including in the channel competition packet parsed；

Downlink PPDU or trigger frame are generated, downlink PPDU or trigger frame include described to be scheduled multiple The scheduling information of website；

The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.

With reference to first aspect, the possible implementation of the first of first aspect, and any implementation in second of possible implementation of first aspect, in the third possible implementation of first aspect, the channel competition packet is what the website was sent when needing to carry out data transmission, and detecting the signal detection energy of the present channel less than the first pre-determined threshold；

It is described using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Detect the signal detection energy of the successful present channel of competition；Judge the signal detection energy of the successful present channel of the competition detected whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, execute it is described using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame the step of.

The third possible implementation with reference to first aspect, in a fourth possible implementation of the first aspect, the signal detection energy of the detection successful present channel of competition, comprising:

Detect the signal detection energy of the successful present channel whole bandwidth of competition；Or,

Detect the signal detection energy of the successful each subband of present channel of competition.

The 4th kind of possible implementation with reference to first aspect, in the fifth possible implementation of the first aspect, when detecting the signal detection energy of the successful each subband of present channel of the competition, the signal detection energy for judging the successful present channel of the competition detected whether less than the second pre-determined threshold include:

Judge the signal detection energy of the successful any subband of present channel of competition whether less than the second pre-determined threshold, if, the signal detection energy of the successful present channel of the competition then confirmly detected is less than the second pre-determined threshold, if it is not, the signal detection energy of the successful present channel of the competition then confirmly detected is greater than or equal to the second pre-determined threshold.

Second aspect provides another channel competition method, comprising:

When the either site needs in this basic service set BSS carry out data transmission, and not in the channel competition packet that the access point AP that present channel parses this BSS is sent, channel competition packet is sent in the present channel, so that the AP of described BSS when the present channel parses the channel competition packet, is determined This BSS competes the present channel success；

The down physical layer protocol Data Unit PPDU or trigger frame that the AP of described BSS is sent are received in the successful present channel of competition；

Judge in the downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website；

If so, carrying out uplink or downlink data transmission for the scheduling information of this website according to including in the downlink PPDU or trigger frame.

It in the first possible implementation of the second aspect, in the channel competition packet include the channel state information of the present channel, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information in conjunction with second aspect.

In conjunction with the possible implementation of the first of second aspect or second aspect, in a second possible implementation of the second aspect, include: before the present channel sends channel competition packet

Detect the first signal detection energy of the present channel；

Judge the first signal detection energy whether less than the first pre-determined threshold；If so, executing the step of the present channel sends channel competition packet；

If in the downlink PPDU or trigger frame including the scheduling information for this website, it is described according to the scheduling information progress uplink or downlink data transmission for this website for including in the downlink PPDU or trigger frame before, further includes:

Detect the second signal detection energy of the successful present channel of competition；Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, the step of uplink or downlink data transmission are carried out according to the scheduling information for this website for including in the downlink PPDU or trigger frame is executed.

In conjunction with second of possible implementation of second aspect, in the third possible implementation of the second aspect, the second signal of the detection successful present channel of competition detects energy, comprising:

Detect the second signal detection energy of the successful present channel whole bandwidth of competition；Or,

The second signal for detecting the subband for the scheduling information instruction for this website for including in the PPDU or trigger frame in the successful present channel of competition detects energy.

The third aspect provides another channel competition method, comprising:

When access point needs carry out data transmission, and not present channel parse this basic service set BSS either site send channel competition packet when, the present channel send channel competition packet, to carry out channel competition；

After determining competition present channel success, according to the reception condition for the response frame that the either site of described BSS is sent, it include the scheduling information for multiple websites of this BSS using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.

In conjunction with the third aspect, in the first possible implementation of the third aspect, the reception condition for the response frame that the either site according to described BSS is sent sends the downlink PPDU or trigger frame, comprising:

Judge whether to receive the response frame that the either site of described BSS is sent in the successful present channel of competition；

If so, competing successful present channel to this BSS broadcast downstream PPDU or trigger frame using described.

In conjunction with the third aspect, in the second possible implementation of the third aspect, the reception condition for the response frame that the either site according to described BSS is sent sends the downlink PPDU or trigger frame, comprising:

Judge whether to receive the response frame that the either site of described BSS is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects and the mark of the website in the response frame；

If receiving the response frame that the website of this BSS is sent in the successful present channel of competition, multiple websites to be scheduled are determined according to the mark of the channel state information and website that include in the response frame；

Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of multiple websites to be scheduled；

In conjunction with the first possible implementation of the third aspect, the third aspect, and any implementation in second of possible implementation of the third aspect, it in the third possible implementation of the third aspect, include: the first signal detection energy for detecting the present channel before the present channel sends channel competition packet；Judge the first signal detection energy whether less than the first pre-determined threshold；If so, executing the step of the present channel sends channel competition packet；

The channel competition packet that the website that the response frame is described BSS is sent in the AP that the present channel parses this BSS, and when detecting the signal detection energy of the present channel less than the first pre-determined threshold, sent using the present channel to the AP of described BSS；

Detect the second signal detection energy of the present channel；Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If the step of second signal detection energy less than the second pre-determined threshold, is executed using the successful present channel of competition to described BSS broadcast downstream PPDU or trigger frame.

Fourth aspect provides another channel competition method, comprising:

Either site in basic service set BSS judges whether the channel competition packet that the access point AP for parsing this BSS in present channel is sent；If so, determining that described BSS competes the present channel success；

Response frame is sent to the AP of described BSS in the successful present channel of competition, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；

The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition；

In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, it is after described BSS competition of determination present channel success and described before the successful present channel of competition sends response frame to the AP of described BSS, further includes:

Detect the first signal detection energy of the present channel；

Judge whether the first signal detection energy is less than first pre-determined threshold；

If so, executing described the step of the successful present channel of competition sends response frame to the AP of described BSS.

In conjunction with fourth aspect, in the second possible implementation of the fourth aspect, it is after described BSS competition of determination present channel success and described before the successful present channel of competition sends response frame to the AP of described BSS, further includes:

Detect the first signal detection energy of the present channel；

It is responded if so, executing described send in the successful present channel of competition to the AP of described BSS The step of frame；

It is described to send response frame to the AP of described BSS in the successful present channel of competition, comprising:

A sub-channels are randomly choosed from the successful present channel of competition, and the response frame is sent to the AP of described BSS using the subchannel, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.

In conjunction with the first possible implementation of fourth aspect or second of possible implementation of fourth aspect, in the third possible implementation of the fourth aspect, judge to include being directed to after the scheduling information of this website in the downlink PPDU or trigger frame, and before the scheduling information progress uplink or downlink data transmission for being directed to this website according to including in the downlink PPDU or trigger frame, further includes:

Detect the second signal detection energy of the successful present channel of competition；

Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, executes and uplink or downlink data transmission are carried out according to the scheduling information for including in the downlink PPDU or trigger frame.

In conjunction with the third possible implementation of fourth aspect, in the fourth possible implementation of the fourth aspect, the second signal of the detection successful present channel of competition detects energy, comprising:

The second signal for detecting the subband for the scheduling information instruction for this website for including in PPDU described in the successful present channel of competition or trigger frame detects energy.

5th aspect provides a kind of communication device, and the communication device is access point AP or applied to the processor in access point AP, comprising:

Channel competition module, the channel competition packet sent for judging the either site for whether parsing this basic service set BSS on present channel；If so, determining that this BSS competes the present channel success；

Data transmission module, for including the uplink or down dispatch information for multiple websites of described BSS to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame using the successful present channel of the competition.

In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, the channel competition module, after being also used to determine that this BSS competes the present channel success, record solves within a preset period of time It is precipitated and sends the mark of multiple websites of described BSS of channel competition packet in the successful present channel of competition；

The data transmission module is also used to determine the scheduling information of the corresponding multiple websites of mark of the multiple website；Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of the multiple website；The downlink PPDU or trigger frame of the scheduling information including the multiple website are broadcasted to described BSS using the successful present channel of competition.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in second of possible implementation of the 5th aspect, the channel competition module, after being also used to determine that this BSS competes the present channel success, the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of competition is counted；It include the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet；

The data transmission module is also used to determine multiple websites to be scheduled according to the channel state information for including in the channel competition packet parsed；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.

In conjunction with the first possible implementation of the 5th aspect, the 5th aspect, and second of possible implementation in terms of the 5th, in the third possible implementation of the 5th aspect, the channel competition packet is what the website was sent when needing to carry out data transmission, and detecting the signal detection energy of the present channel less than the first pre-determined threshold；

The communication device further include:

Signal detection module, for detecting the signal detection energy of the successful present channel of competition；

The data transmission module is also used to when signal detection the second pre-determined threshold of energy for the successful present channel of the competition that the signal detection module detects, competes successful present channel to this BSS broadcast downstream PPDU or trigger frame using described；Second pre-determined threshold is different from first pre-determined threshold.

In conjunction with the third possible implementation of the 5th aspect, in the 4th kind of possible implementation of the 5th aspect, when the signal detection module detects the signal detection energy of the successful each subband of present channel of competition,

The data transmission module, specifically for when the signal detection energy of the successful any subband of present channel of competition is less than the second pre-determined threshold, the signal detection energy of the present channel confirmly detected is less than the second pre-determined threshold, otherwise, it determines the signal detection energy of the present channel detected is greater than or waits In the second pre-determined threshold.

6th aspect provides another communication device, and the communication device is for website or applied to the processor in website, comprising:

Channel competition module, for carrying out data transmission when website needs, and not in the channel competition packet that the access point AP that present channel parses this basic service set BSS is sent, channel competition packet is sent in the present channel, so that the AP of described BSS when the present channel parses the channel competition packet, determines that this BSS competes the present channel success；

Data transmission module, for receiving the down physical layer protocol Data Unit PPDU or trigger frame that the AP of described BSS is sent in the successful present channel of competition；When in the downlink PPDU or trigger frame including the scheduling information for this website, the transmission of upstream or downstream data is carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.

In conjunction with the 6th aspect, in the first possible implementation of the 6th aspect, including the channel state information of the present channel in the channel competition packet, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in second of possible implementation of the 6th aspect, the communication device further include:

Signal detection module, for detecting the first signal detection energy of the present channel；

The channel competition module when specifically for the first signal detection energy for detecting when the signal detection module less than the first pre-determined threshold, sends channel competition packet in the present channel；

The signal detection module, if being also used in the downlink PPDU or trigger frame includes the scheduling information for this website, the second signal for detecting the successful present channel of competition detects energy；

The data transmission module, when detecting energy less than the second pre-determined threshold specifically for the second signal detected when the signal detection module, the transmission of upstream or downstream data is carried out according to the scheduling information for this website for including in the downlink PPDU or trigger frame；Second pre-determined threshold is different from first pre-determined threshold.

7th aspect provides another communication device, and the communication device is access point AP or applied to the processor in access point AP, comprising:

Channel competition module sends channel competition packet in the present channel, to carry out channel competition for carrying out data transmission when AP needs, and not in the channel competition packet that the either site that present channel parses this basic service set BSS is sent；

Data transmission module, for after determining competition present channel success, according to the reception condition for the response frame that the either site of described BSS is sent, it include the scheduling information for multiple websites of this BSS using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.

In conjunction with the 7th aspect, in the first possible implementation of the 7th aspect, the data transmission module, specifically for broadcasting the downlink PPDU or trigger frame to this BSS using the successful present channel of competition when receiving the response frame of either site transmission of described BSS in the successful present channel of competition.

In conjunction with the 7th aspect, in second of possible implementation of the 7th aspect, the data transmission module, specifically for when receiving the response frame of website transmission of described BSS in the successful present channel of competition, include the channel state information for the successful present channel of the competition that corresponding website detects and the mark of the website in the response frame, multiple websites to be scheduled are determined according to the mark of the channel state information and website that include in the response frame；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.

In conjunction with second of possible implementation of the 7th aspect, the first possible implementation of the 7th aspect and the 7th aspect, in the third possible implementation of the 7th aspect, the communication device further include:

The signal detection module is also used to detect the second signal detection energy of the channel；

The data transmission module when detecting energy less than the second pre-determined threshold specifically for the second signal detected when the signal detection module, competes successful present channel to described BSS broadcast downstream PPDU or trigger frame using described；Second pre-determined threshold is different from first pre-determined threshold.

Eighth aspect provides another communication device, and the communication device is for website or applied to the processor in website, comprising:

Channel competition module, the channel competition packet sent for judging whether the access point AP for parsing this BSS in present channel；If so, determining that described BSS competes the present channel success；

Data transmission module, for sending response frame to the AP of described BSS in the successful present channel of competition, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition；When in downlink PPDU or trigger frame including the scheduling information for this website, uplink or downlink data transmission are carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.

In conjunction with eighth aspect, in the first possible implementation of eighth aspect, the communication device further include:

The data transmission module when specifically for the first signal detection energy for detecting when the signal detection module less than the first pre-determined threshold, sends response frame to the AP of described BSS in the successful present channel of competition；Or, when the signal detection module detects the first signal detection energy less than the first signal detection energy, a sub-channels are randomly choosed from the successful present channel of competition, and the response frame is sent to the AP of described BSS using the subchannel, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.

In conjunction with the first possible implementation of eighth aspect, in second of possible implementation of eighth aspect, the signal detection module, it is also used to after in the downlink PPDU or trigger frame including the scheduling information for this website, the second signal for detecting the successful present channel of competition detects energy；

The data transmission module is also used to carry out uplink or downlink data transmission according to the scheduling information for including in the downlink PPDU or trigger frame when the second signal detection energy that the signal detection module detects is less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold.

Compared with prior art, the embodiment of the present invention has the advantages that

In the embodiment of the present invention, when AP judges the channel competition packet that the either site for parsing this BSS in present channel is sent, it can determine that this BSS competes present channel success, or, when AP needs to carry out data transmission, and AP can send channel competition packet by channel in this prior not in the channel competition packet that the website that present channel parses this BSS is sent, to carry out channel competition, due to AP or either site in BSS When competing present channel success, the AP of the BSS can determine that this BSS competes present channel success, and can use the successful present channel of the competition and be scheduled to the website of this BSS, therefore, it is possible to improve the channel competition probability of success of AP.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, the drawings to be used in the embodiments are briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of system architecture schematic diagram of channel competition provided in an embodiment of the present invention；

Fig. 2 is a kind of flow diagram of channel competition method provided in an embodiment of the present invention；

Fig. 3 is the flow diagram of another channel competition method provided in an embodiment of the present invention；

Fig. 4 is the flow diagram of another channel competition method provided in an embodiment of the present invention；

Fig. 5 is a kind of flow diagram of channel competition method provided in an embodiment of the present invention；

Fig. 6 is a kind of flow diagram of channel competition method provided in an embodiment of the present invention；

Fig. 7 is a kind of flow diagram of channel competition method provided in an embodiment of the present invention；

Fig. 8 is the flow diagram of another channel competition method provided in an embodiment of the present invention；

Fig. 9 is the flow diagram of another channel competition method provided in an embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of communication device provided in an embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram of AP provided in an embodiment of the present invention；

Figure 12 is a kind of structural schematic diagram of communication device provided in an embodiment of the present invention；

Figure 13 is a kind of structural schematic diagram of website provided in an embodiment of the present invention；

Figure 14 is a kind of structural schematic diagram of communication device provided in an embodiment of the present invention；

Figure 15 is a kind of structural schematic diagram of AP provided in an embodiment of the present invention；

Figure 16 is a kind of structural schematic diagram of communication device provided in an embodiment of the present invention；

Figure 17 is a kind of structural schematic diagram of website provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear Chu is fully described by, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.

In order to be best understood from a kind of channel competition method provided in an embodiment of the present invention and relevant apparatus, the system architecture being first applicable in below the embodiment of the present invention is described.

Referring to Fig. 1, Fig. 1 is a kind of system architecture schematic diagram of channel competition provided in an embodiment of the present invention.As shown in Figure 1, technical solution provided in an embodiment of the present invention can be adapted for including multiple BSS, it may include in an AP and multiple systems with the associated website of the AP (STA), such as 802.11ax system in each BSS.In system architecture shown in Fig. 1, after AP carries out running time-frequency resource scheduling to website, website just can be carried out transmitting uplink data.In system architecture shown in Fig. 1, when the website or successful AP competitive channel in some BSS, mean BSS competitive channel success, the AP in the BSS all has the right to use of the channel；Wherein, when AP competitive channel success first, the channel can be used to carry out data transmission；When AP determines the website competitive channel success of this BSS, AP no longer needs to competitive channel, can directly be carried out data transmission using the channel that website competes.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of channel competition methods, as shown in Fig. 2, being a kind of flow diagram of channel competition method provided in an embodiment of the present invention, may comprise steps of:

It should be noted that the executing subject of step 201 to step 203 is the processor in the AP or AP in above system framework, such as CPU (full name in English: Center Process Unit).For ease of description, it is described so that the executing subject of step 201 to step 203 is the AP in above system framework as an example below.

Step 201 judges the channel competition packet that the either site for whether parsing this BSS in present channel is sent.If so, going to step 202；Otherwise, terminate current process.

Step 202 determines that this BSS competes present channel success.

In the embodiment of the present invention, in view of in 802.11ax system, it will include the multiple and BSS associated website of AP in each BSS, and after AP is to website progress running time-frequency resource scheduling, website just can be carried out transmitting uplink data, and AP needs successful contention that could carry out running time-frequency resource scheduling to website to channel, if AP competitive channel fails, can not then running time-frequency resource scheduling be carried out to website, to influence the transmitting uplink data of website, therefore, in order to improve the data transmission efficiency in 802.11ax system, need to improve the success rate that AP seizes channel.

In order to achieve the above object, in embodiments of the present invention, when website competitive channel success in BSS, the channel right to use can hand to AP, i.e., in same BSS, website can help AP to seize channel, to improve the success rate that AP seizes channel.

In the embodiment of the present invention, either site is when needing to carry out data transmission in BSS, it can be determining whether to participate in channel competition by way of detecting the signal detection energy of present channel, and when the signal detection energy detected is lower than pre-determined threshold (the first pre-determined threshold), website can send channel competition packet, to carry out channel competition.When AP is in the channel competition packet that the website that present channel parses this BSS is sent, determining competition present channel is successful.The control frame or management frame that channel competition packet can be RTS, RTX or newly define.

It should be noted that, in the embodiment of the present invention, when AP is not in the channel competition packet that the website that present channel parses this BSS is sent, AP can be assessed by channel idle to be determined whether to participate in channel competition, detect the signal detection energy of present channel, and determine whether that sending channel competition packet participates in channel competition according to whether the signal detection energy is less than pre-determined threshold, it is not limited in the embodiment of the present invention.

Step 203 includes uplink or down dispatch information for multiple websites of this BSS to this BSS broadcast downstream PPDU or trigger frame, in downlink PPDU using the successful present channel of the competition.

In the specific embodiment of the present invention, AP is determined after this BSS competition present channel success, AP can determine website to be scheduled (website of this BSS) by preset scheduling strategy, and downlink PPDU (Physical Protocol Data Unit is sent to the website of this BSS in the successful present channel of the competition, physical layer protocol data unit) or trigger frame (Trigger frame) may include the uplink or down dispatch information for the website of above-mentioned needs scheduling in downlink PPDU or trigger frame.After the website of this BSS receives downlink PPDU or the trigger frame of AP transmission, downlink PPDU or trigger frame are parsed, obtain including scheduling information, uplink and/or downlink data transmission are carried out according to corresponding scheduling information.Wherein, which can be the control frame or management frame newly defined.

Such as, AP can carry the uplink or down dispatch information for website to be scheduled in the domain SIG of downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, alternatively, carrying out time and the frequency domain of transmitting uplink data.

Further, in a kind of optional embodiment, after competition present channel success, using the present channel to before this BSS broadcast downstream PPDU or trigger frame, can with the following steps are included:

11) the signal detection energy of the successful present channel of the competition, is detected；

12), whether the signal detection energy for the successful present channel of the competition that judgement detects is less than the second pre-determined threshold；

If 13), be less than, execute the step of the successful present channel of the competition sends downlink PPDU or trigger frame to the website of this BSS.

In order to further increase the data transmission performance of system, in the embodiment of the present invention, different CCA thresholdings is set for channel competition stage and data transfer phase:, can be by judging whether the signal detection energy detected determines whether to carry out channel competition less than the first pre-determined threshold in the channel competition stage；In data transfer phase, whether the signal detection energy detected by judgement determines whether to carry out data transmission less than the second pre-determined threshold.Wherein, the first pre-determined threshold and the second pre-determined threshold can be set according to concrete scene, and such as the first pre-determined threshold is -82dbm, and the second pre-determined threshold is -62dbm；Preferably, the first pre-determined threshold is greater than the second pre-determined threshold.

Correspondingly, based on above-mentioned setting, AP is determined after this BSS competition present channel success, before carrying out data transmission, the signal detection energy of the successful present channel of the competition can first be detected, and the signal detection energy of the successful present channel of the competition detected is judged whether less than the second pre-determined threshold, to determine whether to carry out data transmission.When the signal detection energy for the present channel that AP judgement detects is less than the second pre-determined threshold, AP can send downlink PPDU or trigger frame to the website of this BSS in present channel.

In the embodiment of the present invention, it can detecte the signal detection energy of present channel whole bandwidth when AP detects the signal detection energy of present channel at data transfer phase, also can detecte the signal detection energy of each subband of present channel.

Wherein, when the signal detection energy for detecting present channel is to detect the signal detection energy of each subband, if the signal detection energy of any subband, less than the second pre-determined threshold, AP is performed both by the step of sending downlink PPDU to the website of this BSS.

It should be appreciated that when the signal detection energy of detection present channel is the signal detection energy of detection whole bandwidth, and the signal detection energy of detection present channel is when detecting the signal detection energy of each subband, corresponding second pre-determined threshold can be different.

For example, assuming that the bandwidth of present channel is 20MHz, it altogether include 8 subbands, if the thresholding (the second pre-determined threshold) of channel idle assessment over the whole width is CCAdata, the thresholding of the channel idle assessment on each subband can be 1/8*CCAdata.

As it can be seen that in the method flow described in Fig. 2 after the website competitive channel success in BSS, the channel right to use can be handed to the AP in this BSS, to improve the successful probability of AP competitive channel, in turn, improve the data transmission performance of system.

It will be understood by those skilled in the art that first pre-determined threshold in above-mentioned channel competition stage can be different from the second pre-determined threshold that data transfer phase is arranged.In general, the first pre-determined threshold is less than the second pre-determined threshold.By the way that different CCA thresholdings is arranged for channel competition and data transfer phase, competitive stage AP/STA or website can be by judging that Channel Detection energy and the relationship of thresholding CCAcc decide whether competitive channel；Judge that the relationship of signal detection energy and thresholding CCAdata decide whether to carry out the transmission of OFDMA data in data phase AP/ or site STA.In this way, it keeps original CCA thresholding to can guarantee the fairness of access channel in the competitive stage, and the ability of raising CCA threshold elevation concurrently-transmitted data can be passed through in data phase AP/ or site STA.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides another channel competition methods, as shown in figure 3, may comprise steps of for the flow diagram of another channel competition method provided in an embodiment of the present invention:

It should be noted that the executing subject of step 301 to step 306 is the processor in the AP or AP in above system framework, such as CPU.For ease of description, it is described so that the executing subject of step 301 to step 306 is the AP in above system framework as an example below.

Step 301 judges whether the channel competition packet that the either site for parsing this BSS in present channel is sent.If so, going to step S302；Otherwise, terminate current process.

Step 302 determines that this BSS competes present channel success.

Wherein, step 301~step 302 specific implementation may refer to the associated description in 201~step 202 of above-mentioned steps, and details are not described herein for the embodiment of the present invention.

Step 303, record parse within a preset period of time sends the mark of multiple websites of this BSS of channel competition packet in the successful present channel of the competition.

In the embodiment of the present invention, a period can be preset, and (period can set according to concrete scene, it is depicted below as T), in preset time period T, in each BSS, AP and associated website can carry out clear channel assessment (CCA), that is, detect the signal detection energy of present channel Whether amount is less than pre-determined threshold, and when the signal detection energy for detecting present channel is less than pre-determined threshold (the first pre-determined threshold), channel competition packet is sent, to carry out channel competition.When the channel competition packet that the website that AP receives this BSS is sent, AP determines this BSS competition present channel success, simultaneously, AP can count the channel competition packet that the website of this BSS parsed in preset time period T is sent in the successful present channel of the competition, and be recorded in parse in preset time period T and send the mark of multiple websites of this BSS of channel competition packet in the successful present channel of the competition.

Step 304, the scheduling information for identifying corresponding multiple websites for determining multiple website.

Step 305 generates downlink PPDU or trigger frame, and downlink PPDU or trigger frame include the scheduling information of multiple website.

In the embodiment of the present invention, the corresponding multiple websites of mark of multiple websites of this BSS in the successful present channel transmission channel competition packet of the competition parsed in above-mentioned preset time period T can be determined as multiple websites to be scheduled.

Correspondingly, AP record is parsed within a preset period of time after the mark of multiple websites after the scheduling information of multiple websites of this BSS of channel transmission channel competition packet in this prior, the channel in this prior that can be parsed within a preset period of time according to this sends the mark of multiple websites of this BSS of channel competition packet, determine the scheduling information of multiple website, and generating includes the downlink PPDU for being added to the scheduling information of multiple website or trigger frame.For example, the scheduling information of multiple website can be added in the domain SIG of downlink PPDU by AP.

Step 306, the downlink PPDU or trigger frame for broadcasting the scheduling information including multiple website to this BSS using the successful present channel of the competition.

In the embodiment of the present invention, after AP generation includes the downlink PPDU for being added to the scheduling information of multiple websites or trigger frame, can use the present channel and will be broadcasted to this BSS include multiple website scheduling information (uplink or down dispatch information) downlink PPDU or trigger frame.After the website of this BSS receives downlink PPDU or the trigger frame of AP transmission, downlink PPDU is parsed, obtain including scheduling information, uplink and/or downlink data transmission are carried out according to corresponding scheduling information.

It should be noted that, in embodiments of the present invention, can also include above-mentioned steps 11 between above-mentioned steps 305 and step 306)~step 13), it implements the associated description that may refer in method flow described in Fig. 2, and details are not described herein for the embodiment of the present invention.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides another channel competition methods, as shown in figure 4, may comprise steps of for the flow diagram of another channel competition method provided in an embodiment of the present invention:

It should be noted that the executing subject of step 401 to step 406 is the processor in the AP or AP in above system framework, such as CPU.For ease of description, it is described so that the executing subject of step 401 to step 406 is the AP in above system framework as an example below.

Step 401 judges whether the channel competition packet that the either site for parsing this BSS in present channel is sent.If so, going to step S402；Otherwise, terminate current process.

Step 402 determines that this BSS competes present channel success.

Wherein, step 401~step 402 specific implementation may refer to the associated description in 201~step 202 of above-mentioned steps, and details are not described herein for the embodiment of the present invention.

The channel competition packet that the website of this BSS that step 403, statistics parse within a preset period of time is sent in the successful present channel of the competition includes the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet.

In the embodiment of the present invention, a period can be preset, and (period can set according to concrete scene, it is depicted below as T), in preset time period T, in each BSS, AP and associated website can carry out clear channel assessment (CCA), whether the signal detection energy for detecting present channel is less than pre-determined threshold, and when the signal detection energy for detecting present channel is less than pre-determined threshold (the first pre-determined threshold), channel competition packet is sent, to carry out channel competition；It wherein, can also include the channel state information for the present channel that website detects in the channel competition packet, such as history SNR (SIGNAL-NOISE RATIO, signal-to-noise ratio), instantaneous interference intensity etc..When the channel competition packet that the website that AP receives this BSS is sent, AP determines this BSS competition present channel success, meanwhile, AP can count the channel competition packet that the website of this BSS parsed in preset time period T is sent.

Step 404 determines multiple websites to be scheduled according to the channel state information for including in the channel competition packet parsed.

Step 405 generates downlink PPDU or trigger frame, and downlink PPDU or trigger frame include the scheduling information of multiple websites to be scheduled.

In the embodiment of the present invention, AP can be according to this BSS parsed in above-mentioned preset time period T The website channel state information that includes in the channel competition packet that the successful present channel of the competition is sent determine multiple websites to be scheduled.

For example, assuming that the channel state information for including in channel competition packet is history SNR, then the history SNR for the including website for being greater than the corresponding BSS of channel competition packet of preset threshold can be determined as website to be scheduled according to channel state information of the website of this BSS parsed in preset time period T in the channel competition packet that the successful present channel of the competition is sent by AP.

Again for example, assuming that the channel state information for including in channel competition packet is instantaneous interference intensity, then the website that the instantaneous interference intensity for including is less than the corresponding BSS of channel competition packet of preset threshold can be determined as the website of scheduling according to channel state information of the website of this BSS parsed in preset time period T in the channel competition packet that the successful present channel of the competition occurs by AP.

In the embodiment of the present invention, after AP determines multiple websites to be scheduled according to the channel state information for including in the channel competition packet parsed, the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled can be generated.For example, the scheduling information of multiple websites to be scheduled can be added in the domain SIG of downlink PPDU by AP.

Step 406, the downlink PPDU or trigger frame for broadcasting the scheduling information including multiple websites to be scheduled to this BSS using the successful present channel of competition.

In the embodiment of the present invention, after AP generation includes the downlink PPDU for being added to the scheduling information of multiple websites to be scheduled or trigger frame, can use the successful present channel of the competition and will be broadcasted to this BSS include multiple websites to be scheduled scheduling information downlink PPDU or trigger frame.After the website of this BSS receives downlink PPDU or the trigger frame of AP transmission, downlink PPDU or trigger frame are parsed, obtain including scheduling information, uplink and/or downlink data transmission are carried out according to corresponding scheduling information.

It should be noted that, in embodiments of the present invention, can also include above-mentioned steps 11 between above-mentioned steps 405 and step 406)~step 13), it implements the associated description that may refer in method flow described in Fig. 2, and details are not described herein for the embodiment of the present invention.

As it can be seen that in the method flow described in Fig. 3 and Fig. 4, on the one hand, after the website competitive channel success in BSS, the channel right to use can be handed to the AP in this BSS, to improve the successful probability of AP competitive channel, in turn, improve the data transmission performance of system；It on the other hand, can be according to this BSS parsed in preset time period when AP is scheduled the website of this BSS Website send channel competition packet or channel competition packet in include channel state information determine website to be scheduled, to present channel idle state preferably or channel status more preferably website is scheduled, further improve the data transmission performance of system.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of channel competition methods, as shown in figure 5, being a kind of flow diagram of channel competition method provided in an embodiment of the present invention, may comprise steps of:

Specification is needed, the executing subject of step 501 to step 504 is the processor in website or website in above system framework, such as CPU.For ease of description, being described so that the executing subject of step 501 to step 504 is the website in above system framework as an example below.

Step 501, when either site needs to carry out data transmission in this BSS, and not in the channel competition packet that the AP that present channel parses this BSS is sent, channel competition packet is sent in present channel, so that the AP of this BSS when channel parses the channel competition packet in this prior, determines that this BSS is competed.

In the embodiment of the present invention, in view of in systems, it will include the multiple and BSS associated website of AP in each BSS, and after AP is to website progress running time-frequency resource scheduling, website just can be carried out transmitting uplink data, and AP needs successful contention that could carry out running time-frequency resource scheduling to website to channel, if AP competitive channel fails, can not then running time-frequency resource scheduling be carried out to website, to influence the transmitting uplink data of website, therefore, for the data transmission efficiency in raising system, need to improve the success rate that AP seizes channel.

In the embodiment of the present invention, when in BSS website needs carry out data transmission, and not present channel parse this BSS AP send channel competition packet when, can send channel competition packet carry out channel competition.

It is worth noting that in embodiments of the present invention, if the channel competition packet that website is sent in the AP that present channel parses this BSS, website can determine the AP competitive channel success of this BSS, at this point, the website no longer carries out the channel competition of present channel.

As a kind of optional implementation, in the embodiment of the present invention, website is sending channel competition Before packet, after the signal detection energy (the first signal detection energy) that can detect present channel with website, can and by judge the first signal detection energy whether be less than pre-determined threshold (the first pre-determined threshold can be arranged according to concrete scene) mode determine whether participation channel competition.When website judges the first signal detection energy less than the first pre-determined threshold, website can determine participation channel competition, and send channel competition packet in present channel.When the channel competition packet that the AP website that channel parses this BSS in this prior is sent, AP can determine competition present channel success.

It should be noted that, in embodiments of the present invention, when website detects the first signal detection energy of present channel, and judges that the first signal detection energy is equal to or more than the first pre-determined threshold, website can be not involved in the channel competition of present channel, and it is not limited in the embodiment of the present invention.

Step 502 receives the downlink PPDU or trigger frame that the AP of this BSS is sent in the successful present channel of the competition.

Whether step 503 judges in downlink PPDU or trigger frame to include the scheduling information for being directed to this website.If being judged as YES, step 504 is gone to；Otherwise, terminate current process.

Step 504 carries out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU or trigger frame.

In the embodiment of the present invention, if the channel competition packet that AP is sent in the website that present channel parses this BSS, then AP determines competition present channel success, in turn, AP can determine website to be scheduled according to scheduling strategy, and broadcast the downlink PPDU or trigger frame of the scheduling information including the website to be scheduled to this BSS using present channel.Such as, AP can include the scheduling information of website to be scheduled in the domain SIG in downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, or, carrying out time and the frequency domain of transmitting uplink data.

After downlink PPDU or trigger frame that the AP that website receives this BSS is sent, downlink PPDU or trigger frame can be parsed, judge in downlink PPDU or trigger frame whether to include the scheduling information for being directed to the website of local terminal, it is directed to the scheduling information of the website, if in downlink PPDU or trigger frame including the scheduling information for the website of local terminal, which can carry out uplink and/or downlink data transmission according to the scheduling information for the website for local terminal for including in downlink PPDU or trigger frame.

As an alternative embodiment, AP parses the channel competition packet that the website of this BSS is sent in the current channel, and after determining this BSS competition present channel success, AP can recorde pre- The mark of multiple websites of this BSS of channel competition packet is sent in the successful present channel of the competition if parsing in the period, and determine the scheduling information of the corresponding multiple websites of mark of multiple website, in turn, generate the downlink PPDU or trigger frame of the scheduling information including multiple website, and the downlink PPDU or trigger frame of the scheduling information including multiple website are broadcasted to this BSS using present channel, so that the website of this BSS is after receiving downlink PPDU or trigger frame, uplink or downlink data transmission are carried out according to the scheduling information for local terminal for including in downlink PPDU or trigger frame, it implements the associated description that may refer in step 303~step 306 in method flow described in above-mentioned Fig. 3, details are not described herein for the embodiment of the present invention.

As another optional embodiment, in embodiments of the present invention, when website detects the first signal detection energy of present channel, and when judging the first signal detection energy less than the first pre-determined threshold, website can include the channel state information of present channel in the channel competition packet of transmission, such as history SNR, instantaneous interference intensity, so that the AP of this BSS determines website to be scheduled according to the channel state information.

Correspondingly, AP parses the channel competition packet that the website of this BSS is sent in the current channel, and after determining that competition present channel is successful, AP can count the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of the competition, and website to be scheduled is determined according to the channel state information for including in the channel competition packet, in turn, it generates in downlink PPDU or the trigger frame of the scheduling information including the website to be scheduled, and the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to this BSS using the successful present channel of the competition, it implements the associated description that may refer in step 403~step 406 in method flow described in above-mentioned Fig. 4, details are not described herein for the embodiment of the present invention.

Further, in a kind of optional embodiment, if in downlink PPDU or trigger frame including the scheduling information for local terminal, before the scheduling information progress uplink or downlink data transmission for local terminal for including in downlink PPDU or trigger frame, can with the following steps are included:

31) the second signal detection energy of the successful present channel of the competition, is detected；

32), judge second signal detection energy whether less than the second pre-determined threshold；

If 33), be less than, the step of uplink or downlink data transmission are carried out according to the scheduling information for this website for including in downlink PPDU or trigger frame is executed.

In order to further increase the data transmission performance of system, in the embodiment of the present invention, different CCA thresholdings is set for channel competition stage and data transfer phase:, can be in the channel competition stage By judging whether the signal detection energy detected determines whether to carry out channel competition less than the first pre-determined threshold；In data transfer phase, whether the signal detection energy detected by judgement determines whether to carry out data transmission less than the second pre-determined threshold.Wherein, the first pre-determined threshold and the second pre-determined threshold can be set according to concrete scene, and such as the first pre-determined threshold is -82dbm, and the second pre-determined threshold is -62dbm；Preferably, the second pre-determined threshold is greater than the first pre-determined threshold.

Correspondingly, based on above-mentioned setting, website determines the downlink PPDU received or includes being directed to after the scheduling information of this website in trigger frame, before carrying out data transmission, the signal detection energy of the successful present channel of the competition can first be detected, and the signal detection energy of the successful present channel of the competition detected is judged whether less than the second pre-determined threshold, to determine whether to carry out data transmission.When the signal detection energy for the successful present channel of the competition that website judgement detects is less than the second pre-determined threshold, website can carry out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU or trigger frame.

In the embodiment of the present invention, in data transfer phase, when AP detects the signal detection energy of the successful present channel of the competition, the signal detection energy that can detecte the successful present channel whole bandwidth of the competition also can detecte the signal detection energy of the subband for the scheduling information instruction for local terminal for including in the above-mentioned downlink PPDU in the successful present channel of the competition.

It should be realized that, the signal detection energy for detecting the successful present channel of the competition is when detecting the signal detection energy of whole bandwidth, and detect the successful present channel of the competition signal detection energy be detect the successful present channel of the competition in above-mentioned downlink PPDU in include for local terminal scheduling information indicate subband signal detection energy when, corresponding second pre-determined threshold can difference.

As it can be seen that in the method flow described in Fig. 5 after the website competitive channel success in BSS, the channel right to use can be handed to the AP in this BSS, to improve the successful probability of AP competitive channel, in turn, improve the data transmission performance of system.

Based on system architecture shown in FIG. 1, a kind of channel competition method is provided in the embodiment of the present invention, as shown in fig. 6, for a kind of process signal of channel competition method provided in an embodiment of the present invention Figure, may comprise steps of:

Specification is needed, the executing subject of step 601 to step 602 is the processor in AP or AP in above system framework, such as CPU.For ease of description, being described so that the executing subject of step 601 to step 602 is the AP in above system framework as an example below.

Step 601, when AP needs carry out data transmission, and not present channel parse this BSS website send channel competition packet when, present channel send channel competition packet, to carry out channel competition.

In the embodiment of the present invention, when in BSS AP needs carry out data transmission, and not present channel parse this BSS website send channel competition packet when, AP can send channel competition packet, to carry out channel competition.

It is worth noting that in embodiments of the present invention, if the channel competition packet that AP is sent in the website that present channel parses this BSS, AP can determine the success of this BSS competitive channel, at this point, AP does not need the channel competition for carrying out present channel again.

As a kind of optional implementation, in the embodiment of the present invention, AP is before sending channel competition packet, after the signal detection energy (the first signal detection energy) that can detecte present channel, and by judge the first signal detection energy whether be less than pre-determined threshold (the first pre-determined threshold can be arranged according to concrete scene) mode determine whether participation channel competition.When AP judges the first signal detection energy less than the first pre-determined threshold, AP can determine participation channel competition, and send channel competition packet in present channel.

In embodiments of the present invention, if AP is after present channel sends channel competition packet, if not parsing the channel competition packet that other AP or website are sent, AP in present channel within a preset time It can determine competition present channel success.

It should be noted that, in embodiments of the present invention, when AP detects the first signal detection energy of present channel, and judges that the first signal detection energy is equal to or more than the first pre-determined threshold, AP can be not involved in the channel competition of present channel, and it is not limited in the embodiment of the present invention.

Step 602, when determine competition present channel success after, according to the reception condition for the response frame that the either site of this BSS is sent, it include the scheduling information for multiple websites of this BSS using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame, in downlink PPDU or trigger frame.

In the embodiment of the present invention, AP is determined after competition present channel success, AP can determine website to be scheduled (website of this BSS) by preset scheduling strategy, and downlink PPDU or trigger frame are sent to the website of this BSS in present channel, it may include the scheduling information for being directed to above-mentioned website to be scheduled in downlink PPDU or trigger frame.After the website of this BSS receives downlink PPDU or the trigger frame of AP transmission, downlink PPDU or trigger frame are parsed, obtain including scheduling information, uplink and/or downlink data transmission are carried out according to corresponding scheduling information.

Such as, AP can carry the scheduling information for website to be scheduled in the domain SIG of downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, or, carrying out time and the frequency domain of transmitting uplink data.

In a kind of optional embodiment, the reception condition for the response frame that AP is sent according to the either site of this BSS, when determining competition present channel success to this BSS broadcast downstream PPDU or trigger frame using the successful present channel of the competition, using the present channel to before this BSS broadcast downstream PPDU, can with the following steps are included:

41), judge whether the response frame that the website for receiving this BSS in the successful present channel of the competition is sent；

42), if so, using the successful present channel of the competition to this BSS broadcast downstream PPDU.

In this embodiment, website in BSS is in the channel competition packet that the AP that present channel parses this BSS is sent, the website can detecte the signal detection energy of the present channel, and judge whether the signal detection energy is less than above-mentioned first pre-determined threshold, if being less than, response frame is sent to the AP of this BSS using the present channel, signal interference is generated with the adjacent sites to the website, so that the signal detection energy for the present channel that the adjacent sites of the website detect increases, thus The adjacent sites that the website can be reduced participate in competing the probability of the present channel, realize receiving end protection.

Correspondingly, AP is determined after competition present channel success, into before data transfer phase, AP can decide whether the response frame that the website for receiving this BSS in the successful present channel of competition is sent, if receiving, AP can consider the website in this BSS there are channel idle, thus, AP can be scheduled the website of this BSS, and sending in present channel to the website of this BSS includes the downlink PPDU or trigger frame for being directed to the scheduling information of website of this BSS；Otherwise, AP can not be scheduled the website of this BSS.

Above-mentioned response frame can be the control frame or management frame of CTS, CTX or certain new definition.

In another optional embodiment, the reception condition for the response frame that AP is sent according to the either site of this BSS may comprise steps of using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame:

51), judge whether the response frame that the website for receiving this BSS in the successful present channel of the competition is sent；It wherein, may include the channel state information for the present channel that corresponding website detects and the mark of the website in the response frame；

52) if, the response frame sent in the website that the successful present channel of the competition receives this BSS, determines multiple websites to be scheduled according to the mark of the channel state information and website that include in the response frame；

53) downlink PPDU or trigger frame, are generated, downlink PPDU or trigger frame include that the scheduling information of multiple websites to be scheduled is added to downlink PPDU；

54) the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled, are broadcasted to this BSS using the successful present channel of the competition.

In this embodiment, website in BSS is in the channel competition packet that the AP that present channel parses this BSS is sent, the website can detecte the signal detection energy of the present channel, and judge whether the signal detection energy is less than above-mentioned first pre-determined threshold, if being less than, response frame is sent to the AP of this BSS using the present channel, wherein, the website can randomly choose a sub-channels from present channel and send the response frame, it may include the channel state information for the present channel that the website detects in the response frame, and the mark of the website, the channel state information may include history SNR, instantaneous interference intensity etc..

Correspondingly, after AP determines competition present channel success, into before data transfer phase, AP can decide whether the response frame that the website for receiving this BSS in the successful present channel of the competition is sent, if receiving, AP can determine multiple websites to be scheduled according to the mark of the channel state information and website that include in the response frame, generation includes broadcasting the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled to this BSS using the successful present channel of the competition for after the downlink PPDU of the scheduling information of multiple websites to be scheduled or trigger frame.

For example, assuming that the channel state information for including in response frame is history SNR, then the history SNR for the including website for being greater than the corresponding BSS of response frame of preset threshold can be determined as website to be scheduled according to the channel state information for including in the response frame that present channel receives by AP.

Again for example, assuming that the channel state information for including in response frame is instantaneous interference intensity, then the website that the instantaneous interference intensity for including is less than the corresponding BSS of response frame of preset threshold can be determined as the website of scheduling according to the channel state information for including in the response frame that present channel receives by AP.

Above-mentioned response frame can be the control frame or management frame of the CTS of extension, CTX or certain new definition.

Based on system architecture shown in FIG. 1, a kind of channel competition method provided in an embodiment of the present invention may comprise steps of as shown in fig. 7, being a kind of flow diagram of channel competition method provided in an embodiment of the present invention:

Specification is needed, the executing subject of step 701 to step 706 is the processor in website or website in above system framework, such as CPU.For ease of description, being described so that the executing subject of step 701 to step 706 is the website in above system framework as an example below.

Step 701 judges whether the channel competition packet that the AP for parsing this BSS in present channel is sent.If so, going to step 702；Otherwise, terminate current process.

Step 702 determines this BSS competition present channel success.

In the embodiment of the present invention, when AP needs carry out data transmission, and not in the channel competition packet that the website that present channel parses this BSS is sent, AP can be determining whether to participate in channel competition by way of detecting the signal detection energy of present channel, and when the signal detection energy detected is lower than pre-determined threshold (the first pre-determined threshold), AP can send channel competition packet, to carry out channel competition.When website present channel parse this BSS AP send channel competition packet when, determine AP competition present channel success.

It should be noted that, in the embodiment of the present invention, when website is not in the channel competition packet that the AP that present channel parses this BSS is sent, website can be assessed by channel idle to be determined whether to participate in channel competition, detect the signal detection energy of present channel, and determine whether that sending channel competition packet participates in channel competition according to whether the signal detection energy is less than pre-determined threshold, it is not limited in the embodiment of the present invention.

Step 703 sends response frame to the AP of this BSS in the successful present channel of the competition, so that the AP of this BSS is when receiving response frame, using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame.

In the embodiment of the present invention, website receives the channel competition packet that the AP of this BSS is sent, after determining the success of this BSS competitive channel, response frame can be sent to the AP of this BSS in the successful present channel of the competition, the website of this BSS is scheduled with triggering the AP of this BSS.

After the response frame that the website that AP receives this BSS is sent, the website for needing to dispatch can be determined according to scheduling strategy, and it utilizes and competes successful present channel to this BSS broadcast downstream PPDU or trigger frame, wherein, may include in downlink PPDU or trigger frame this BSS multiple websites uplink or down dispatch information.

Step 704 receives the downlink PPDU or trigger frame that the AP of this BSS is sent in the successful present channel of the competition.

Whether step 705 judges in downlink PPDU or trigger frame to include the scheduling information for being directed to this website.If being judged as YES, step 705 is gone to；Otherwise, terminate current process.

Step 706 carries out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU.

In the embodiment of the present invention, after downlink PPDU or trigger frame that the AP that website receives this BSS is sent, downlink PPDU or trigger frame can be parsed, judge in downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website, if in downlink PPDU including the scheduling information for this website, which can carry out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU.

Based on system architecture shown in FIG. 1, the embodiment of the invention also provides another channel competition methods, as shown in figure 8, may comprise steps of for the flow diagram of another channel competition method provided in an embodiment of the present invention:

Specification is needed, the executing subject of step 801 to step 808 is the processor in website or website in above system framework, such as CPU.For ease of description, being described so that the executing subject of step 801 to step 808 is the website in above system framework as an example below.

Step 801 judges whether the channel competition packet that the AP for parsing this BSS in present channel is sent.If so, going to step 802；Otherwise, terminate current process.

Step 802 determines this BSS competition present channel success.

Wherein, step 801~step 802 specific implementation may refer to the associated description in method flow described in above-mentioned Fig. 7 in step 701~step 702, and details are not described herein for the embodiment of the present invention.

Step 803, the first signal detection energy for detecting the successful present channel of the competition.

Whether step 804 judges the first signal detection energy less than the first pre-determined threshold.If so, going to step 805；Otherwise, terminate current process.

Step 805 sends response frame to the AP of this BSS in the successful present channel of the competition, so that the AP of this BSS is when receiving response frame, using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame.

In the embodiment of the present invention, when the website of BSS determines the AP competition present channel success of this BSS, it can detecte the signal detection energy (the first signal detection energy) of present channel, and judge whether the first signal detection energy is less than pre-determined threshold (the first pre-determined threshold).

When the website judges the first signal detection energy less than the first pre-determined threshold, the website can use the present channel and send response frame to the AP of this BSS, signal interference is generated with the adjacent sites to the website, the signal detection energy for the present channel for detecting the adjacent sites of the website increases, to, the adjacent sites that the website can be reduced participate in competing the probability of the present channel, real Existing receiving end protection.

In embodiments of the present invention, when the response frame that the website that AP receives this BSS is sent, it is considered that there are the websites of channel idle in this BSS, to, AP can be scheduled the website of this BSS, and broadcasting in present channel to this BSS includes the downlink PPDU or PPDU for being directed to the scheduling information of website of this BSS；Otherwise, AP can not be scheduled the website of this BSS.

It should be noted that, in embodiments of the present invention, it when website sends response frame to the AP of this BSS, can be sent randomly choosing a sub-channels from present channel, it can also send in each subchannel of channel in this prior, the specific implementation embodiment of the present invention is without limitation.

Step 806 receives the downlink PPDU or trigger frame that the AP of this BSS is sent in the successful present channel of the competition.

Whether step 807 judges in downlink PPDU or trigger frame to include the scheduling information for being directed to this website.If so, going to step 808；Otherwise, terminate current process.

Step 808 carries out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU or trigger frame.

In the embodiment of the present invention, when AP competition present channel success, and in the response frame that the website that present channel receives this BSS is sent, AP can determine website to be scheduled according to scheduling strategy, and broadcast the downlink PPDU or trigger frame of the scheduling information including the website to be scheduled to this BSS using present channel.Such as, AP can include the scheduling information of website to be scheduled in the domain SIG in downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, or, carrying out time and the frequency domain of transmitting uplink data.

After downlink PPDU or trigger frame that the AP that website receives this BSS is sent, downlink PPDU or trigger frame can be parsed, judge in downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website, if in downlink PPDU or trigger frame including the scheduling information for this website, which can carry out the transmission of upstream or downstream data according to the scheduling information for this website for including in downlink PPDU or trigger frame.

Further, in a kind of optional embodiment, website judges to include being directed to after the scheduling information of this website in downlink PPDU or trigger frame, and according to include in downlink PPDU or trigger frame for this website scheduling information carry out upstream or downstream data transmission before, can with the following steps are included:

71) the second signal detection energy of the successful present channel of the competition, is detected；

72), judge second signal detection energy whether less than the second pre-determined threshold；

If 73), be less than, the step of uplink or downlink data transmission are carried out according to the scheduling information for including in downlink PPDU or trigger frame is executed.

Correspondingly, based on above-mentioned setting, website judges to include being directed to after the scheduling information of this website in downlink PPDU or trigger frame, before carrying out data transmission, the signal detection energy (second signal detection energy) of the successful present channel of the competition can first be detected, and judge that the second signal of the successful present channel of the competition detected detects energy whether less than the second pre-determined threshold, to determine whether to carry out data transmission.When the second signal detection energy for the successful present channel of the competition that website judgement detects is less than the second pre-determined threshold, website can carry out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU.

Based on system architecture shown in FIG. 1, the embodiment of the invention also provides another channel competition methods, as shown in figure 9, may comprise steps of for the flow diagram of another channel competition method provided in an embodiment of the present invention:

Specification is needed, the executing subject of step 901 to step 908 is the processor in website or website in above system framework, such as CPU.For ease of description, being described so that the executing subject of step 901 to step 908 is the website in above system framework as an example below.

Step 901 judges whether the channel competition packet that the AP for parsing this BSS in present channel is sent.If so, going to step 902；Otherwise, terminate current process.

Step 902 determines this BSS competition present channel success.

Wherein, step 901~step 902 specific implementation may refer to the associated description in method flow described in above-mentioned Fig. 7 in step 701~step 702, and details are not described herein for the embodiment of the present invention.

Step 903, the first signal detection energy for detecting the successful present channel of the competition.

Whether step 904 judges the first signal detection energy less than the first pre-determined threshold.If so, going to step 905；Otherwise, terminate current process.

Step 905 randomly chooses a sub-channels from the successful present channel of the competition, and response frame is sent to the AP of this BSS using the subchannel, it include the channel state information for the competition success present channel that local terminal detects in the response frame, and the mark of local terminal, so that the AP of this BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.

In the embodiment of the present invention, when the website of BSS determines the AP competition present channel success of this BSS, it can detecte the signal detection energy (the first signal detection energy) of the successful present channel of the competition, and judge whether the first signal detection energy is less than pre-determined threshold (the first pre-determined threshold).

When the website judges the first signal detection energy less than the first pre-determined threshold, the website can randomly choose a sub-channels from the successful present channel of the competition, and response frame is sent to the AP of this BSS using the subchannel, it may include the channel state information for the successful present channel of the competition that the website detects and the mark of the website in the response frame.Wherein, which may include history SNR, instantaneous interference intensity etc..

When the response frame that the website that AP receives this BSS is sent, it can be according to the channel state information for including in the response frame, and the mark of website, determine website to be scheduled, in turn, AP can be scheduled the website to be scheduled of this BSS, broadcast the downlink PPDU or trigger frame of the scheduling information including the website to be scheduled to this BSS in present channel；Otherwise, AP can not be scheduled the website of this BSS.

It should be noted that, in embodiments of the present invention, when the same sub-channels of multiple websites selection present channel send response frame, AP possibly can not parse the response frame that multiple website is sent, it is wrapped at this point, AP can be competed using the present channel to this BSS broadcast channel again, so that the website of this BSS is after the channel competition packet that the AP that present channel parses this BSS is sent, again a sub-channels are randomly choosed and send response frame to the AP of this BSS, until AP parses all response frames.

Step 906 receives the downlink PPDU or trigger frame that the AP of this BSS is sent in the successful present channel of the competition.

Whether step 907 judges in downlink PPDU or trigger frame to include the scheduling for being directed to this website Information.If so, going to step 908；Otherwise, terminate current process.

Step 908 carries out uplink or downlink data transmission according to the scheduling information for this website for including in downlink PPDU or trigger frame.

In the embodiment of the present invention, when AP competition present channel success, and in the response frame that the website that the successful present channel of the competition receives this BSS is sent, the channel state information that AP can include in the response frame, and the mark of website determines website to be scheduled, and broadcasts the downlink PPDU or trigger frame of the scheduling information including the website to be scheduled to this BSS using the successful present channel of the competition.Such as, AP can include the scheduling information of website to be scheduled in the domain SIG in downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, or, carrying out time and the frequency domain of transmitting uplink data.

After downlink PPDU or trigger frame that the AP that website receives this BSS is sent, downlink PPDU or trigger frame can be parsed, judge in downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website, if in downlink PPDU or trigger frame including the scheduling information for this website, which can carry out uplink and/or downlink data transmission according to the scheduling information for this website for including in downlink PPDU or trigger frame.

It should be noted that, in embodiments of the present invention, after including the scheduling information for local terminal website in the downlink PPDU or trigger frame that website judgement receives, according to include in downlink PPDU or trigger frame for local terminal website scheduling information carry out uplink and/or downlink data transmission before, can also include above-mentioned steps 71)~step 73), it implements the associated description that may refer in method flow described in Fig. 8, and the embodiment of the present invention repeats no more.

By above description as can be seen that in embodiments of the present invention, after the website competitive channel success in BSS, the channel right to use can be handed to the AP in this BSS, to improve the successful probability of AP competitive channel, in turn, improve the data transmission performance of system；In addition, can be further improved the data transmission system energy of system by the way that different CCA thresholdings is arranged for channel competition stage and data transfer phase.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of communication device, which can be this hair for AP or applied to the processor in AP, as shown in Figure 10 A kind of structural schematic diagram for communication device that bright embodiment provides may include:

Channel competition module 1001, the channel competition packet sent for judging the either site for whether parsing this BSS on present channel；If so, determining that this BSS competes the present channel success.

Data transmission module 1002, for including the uplink or down dispatch information for multiple websites of described BSS to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame using the successful present channel of the competition.

In the embodiment of the present invention, website is when needing to carry out data transmission, it can be determining whether to participate in channel competition by way of detecting the signal detection energy of present channel, and when the signal detection energy detected is lower than pre-determined threshold (the first pre-determined threshold), website can send channel competition packet, to carry out channel competition.When AP is in the channel competition packet that the website that present channel parses this BSS is sent, determining competition present channel is successful.

Correspondingly, channel competition module 1001 judges to be scheduled in the channel competition packet that the website for parsing this BSS on present channel is sent to enable the website of 1002 couples of this BSS of data transmission module.Data transmission module 1002 is after channel competition module 1001 is enabled, the successful present channel of the competition be can use to this BSS broadcast downstream PPDU or trigger frame, it include the scheduling information for being directed to multiple websites of this BSS in downlink PPDU or trigger frame, so that the website for receiving this BSS of downlink PPDU carries out uplink or downlink data transmission according to the corresponding scheduling information for including in downlink PPDU or trigger frame.

In an alternative embodiment, the channel competition module 1001, it can be also used for after determining that this BSS competes the present channel success, record parses within a preset period of time sends the mark of multiple websites of described BSS of channel competition packet in the successful present channel of competition；

Correspondingly, the data transmission module 1002 can be also used for the scheduling information for the corresponding multiple websites of mark for determining the multiple website；Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of multiple websites；The downlink PPDU or trigger frame of the scheduling information including the multiple website are broadcasted to described BSS using the successful present channel of competition.

In the alternative embodiment, a period can be preset, and (period can set according to concrete scene, it is depicted below as T), in preset time period T, in each BSS, AP and associated website can carry out clear channel assessment (CCA), whether the signal detection energy for detecting present channel is less than pre-determined threshold, and when the signal detection energy for detecting present channel is less than pre-determined threshold (the first pre-determined threshold), channel competition packet is sent, to carry out channel competition.When the channel competition packet that the website that AP receives this BSS is sent, AP determines competition present channel success, simultaneously, AP can count the channel competition packet that the website of this BSS parsed in preset time period T is sent, and be recorded in the mark that the multiple websites for this BSS that channel in this prior sends channel competition packet are parsed in preset time period T.

Specifically, channel competition module 1001 is after determining this BSS competition present channel success, it can recorde the multiple websites for parsing this BSS that channel in this prior sends channel competition packet in preset time period T, and after preset time period arrival, enable data transmission module 1002；Data transmission module 1002 is after channel competition module 1001 is enabled, it can determine the scheduling information of the corresponding multiple websites of mark of above-mentioned multiple websites, and the downlink PPDU or trigger frame of the scheduling information including multiple website are generated, and then broadcast the downlink PPDU or trigger frame of the scheduling information including multiple website to this BSS using the successful present channel of the competition.

In another alternative embodiment, channel competition module 1001 can be also used for after determining this BSS competition present channel success, count the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet；

Correspondingly, the data transmission module 1002 can be also used for determining multiple websites to be scheduled according to the channel state information for including in the channel competition packet parsed；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.

In the alternative embodiment, a period (period can set according to concrete scene, be depicted below as T) can be preset, in preset time period T, in each BSS, AP Clear channel assessment (CCA) can be carried out with associated website, whether the signal detection energy for detecting present channel is less than pre-determined threshold, and when the signal detection energy for detecting present channel is less than pre-determined threshold (the first pre-determined threshold), channel competition packet is sent, to carry out channel competition；It wherein, can also include the channel state information for the present channel that website detects, such as history SNR, instantaneous interference intensity in the channel competition packet.When the channel competition packet that the website that AP receives this BSS is sent, AP determines competition present channel success, meanwhile, AP can count the channel competition packet that the website of this BSS parsed in preset time period T is sent.

Specifically, channel competition module 1001 can be after determining this BSS competition present channel success, count the website channel competition packet that channel is sent in this prior of this BSS parsed in preset time period T, it include the channel state information for the present channel that corresponding website detects in the channel competition packet, and after preset time period reaches, data transmission module 1002 is enabled；Data transmission module 1002 is after channel competition module 1001 is enabled, multiple websites to be scheduled can be determined according to the channel state information for including in the channel competition packet parsed, and generate the downlink PPDU or trigger frame of the scheduling information including multiple website, such as the scheduling information of multiple website is added in the domain SIG in downlink PPDU, and then broadcasts the downlink PPDU or trigger frame of the scheduling information including above-mentioned multiple websites to be scheduled to this BSS using the successful present channel of the competition.

In an alternative embodiment, the channel competition packet is what the website was sent when needing to carry out data transmission, and detecting the signal detection energy of the present channel less than the first pre-determined threshold；

Correspondingly, communication device shown in Fig. 10 can also include:

Signal detection module 1003, for detecting the signal detection energy of the successful present channel of competition；

The data transmission module 1002, it can be also used for when signal detection the second pre-determined threshold of energy for the successful present channel of the competition that the signal detection module 1003 detects, compete successful present channel to this BSS broadcast downstream PPDU or trigger frame using described.

Wherein, second pre-determined threshold is different from first pre-determined threshold.

In order to further increase the data transmission performance of system, in the embodiment of the present invention, different CCA thresholdings is set for channel competition stage and data transfer phase:, can be by judging whether the signal detection energy detected determines whether to carry out channel competition less than the first pre-determined threshold in the channel competition stage；In data transfer phase, whether the signal detection energy detected by judgement determines whether to carry out data transmission less than the second pre-determined threshold.Wherein, the first pre-determined threshold and the second pre- gating Limit can be set according to concrete scene, and such as the first pre-determined threshold is -82dbm, and the second pre-determined threshold is -62dbm；Preferably, the first pre-determined threshold is greater than the second pre-determined threshold.

Correspondingly, based on above-mentioned setting, AP is competed after present channel success, before carrying out data transmission, the signal detection energy that signal detection module 1002 detects the successful present channel of the competition can be first passed through, and the signal detection energy of present channel detected is judged whether less than the second pre-determined threshold, to determine whether to carry out data transmission.When the signal detection energy of the present channel detected is less than the second pre-determined threshold, data transmission module 1002 can send downlink PPDU or trigger frame to the website of this BSS in the successful present channel of the competition.

In an alternative embodiment, the signal detection module 1003 can be specifically used for, and detect the signal detection energy of the successful present channel whole bandwidth of competition；Or, the signal detection energy of the detection successful each subband of present channel of competition.

In an alternative embodiment, when the signal detection module detects the signal detection energy of the successful each subband of present channel of competition, the data transmission module 1002 can be specifically used for, when the signal detection energy of the successful any subband of present channel of competition is less than the second pre-determined threshold, the signal detection energy of the present channel confirmly detected is less than the second pre-determined threshold, otherwise, it determines the signal detection energy of the present channel detected is greater than or equal to the second pre-determined threshold.

Figure 11 is please referred to, Figure 11 is the structural schematic diagram of AP provided in an embodiment of the present invention a kind of.Wherein, AP as shown in figure 11 may include: bus 1104, and with the processor 1101 of the bus interconnection, memory 1102, and input/output module 1103, program code is stored in the memory 1102, and the processor 1101, for calling the program code stored in the memory 1102, execution is following to be operated:

Judge the channel competition packet that the either site that this BSS whether is parsed on present channel is sent；If It is that described access point determines that this BSS competes the present channel success；

It include the uplink or down dispatch information for multiple websites of described BSS by input/output module 1003 using the successful present channel of the competition to described BSS broadcast downstream PPDU or trigger frame, in the downlink PPDU or trigger frame.

In an alternative embodiment, after the processor 1101 is for calling the program code stored in the memory 1102 to determine that described BSS competes the present channel success, and by input/output module 1003 using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, following operation can also be performed:

The processor 1101 competes successful present channel to described BSS broadcast downstream PPDU or trigger frame using described for calling the program code stored in the memory 1102 to pass through input/output module 1003, can specifically include:

Broadcast the downlink PPDU or trigger frame of the scheduling information including the multiple website to described BSS using the successful present channel of competition by input/output module 1003.

The processor 1101 is for calling the program code stored in the memory 1102 to compete successful present channel to described BSS broadcast downstream PPDU or trigger frame using described by input/output module 1003, comprising:

Broadcast the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled to described BSS using the successful present channel of competition by input/output module 1003.

The processor 1101 for call the program code stored in the memory 1102 by input/output module 1003 using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, following operation can also be performed:

If being less than, execute it is described by input/output module 1003 using the successful present channel of competition to this BSS broadcast downstream PPDU or trigger frame the step of.

In an alternative embodiment, the signal detection energy that the processor 1101 is used to that the program code stored in the memory 1102 to be called to detect the successful present channel of competition, comprising:

In an alternative embodiment, when detecting the signal detection energy of the successful each subband of present channel of the competition, the signal detection energy of the successful present channel of the competition that the processor 1101 is used to that the program code stored in the memory 1102 judgement to be called to detect whether less than the second pre-determined threshold include:

It should be noted that, AP shown in Figure 11 is only denoted in AP for component needed for executing channel competition method provided in an embodiment of the present invention, the other assemblies such as physical button, power supply, the shell that can have for the AP embodiment of the present invention does not indicate, because this does not influence the realization of the embodiment of the present invention.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of communication devices, should Communication device can be a kind of structural schematic diagram of communication device provided in an embodiment of the present invention, may include: for website or applied to the processor in website, as shown in figure 12

Channel competition module 1201, for carrying out data transmission when website needs, and not in the channel competition packet that the AP that present channel parses this BSS is sent, channel competition packet is sent in the present channel, so that the AP of described BSS when the present channel parses the channel competition packet, determines that this BSS competes the present channel success；

Data transmission module 1202, for receiving the downlink PPDU or trigger frame that the AP of described BSS is sent in the successful present channel of competition；When in the downlink PPDU or trigger frame including the scheduling information for this website, the transmission of upstream or downstream data is carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.

In the embodiment of the present invention, when in BSS website needs carry out data transmission, and not present channel parse this BSS AP send channel competition packet when, website can send channel competition packet carry out channel competition.

Specifically, when website is transmitted, and not in the channel competition packet that the AP that present channel parses this BSS is sent, signal, which competes module, can send channel competition packet in present channel, so that the AP of this BSS when channel parses the channel competition packet in this prior, determines that this BSS competes present channel success；Data transmission module 1002 can be after this BSS competes present channel success, the downlink PPDU or trigger frame that the AP of this BSS is sent are received in the successful present channel of the competition, and when in downlink PPDU or trigger frame including the scheduling information for this website, uplink or downlink data transmission are carried out according to the scheduling information for this website for including in downlink PPDU or trigger frame.

It in an alternative embodiment, may include the channel state information of the present channel in the channel competition packet, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information.

In an alternative embodiment, communication device shown in Figure 12 can also include:

Signal detection module 1203, for detecting the first signal detection energy of the present channel；

The channel competition module 1201 can be specifically used for when the first signal detection energy that the signal detection module 1203 detects is less than the first pre-determined threshold, send channel competition packet in the present channel；

The signal detection module 1203, if can be also used for includes the scheduling information for this website in the downlink PPDU or trigger frame, the second signal for detecting the successful present channel of competition detects energy；

The data transmission module 1202, it can be specifically used for carrying out the transmission of upstream or downstream data according to the scheduling information for this website for including in the downlink PPDU or trigger frame when the second signal detection energy that the signal detection module 1203 detects is less than the second pre-determined threshold.

In order to further increase the data transmission performance of system, in the embodiment of the present invention, different CCA thresholdings is set for channel competition stage and data transfer phase:, can be by judging whether the signal detection energy detected determines whether to carry out channel competition less than the first pre-determined threshold in the channel competition stage；In data transfer phase, whether the signal detection energy detected by judgement determines whether to carry out data transmission less than the second pre-determined threshold.Wherein, the first pre-determined threshold and the second pre-determined threshold can be set according to concrete scene, and such as the first pre-determined threshold is -82dbm, and the second pre-determined threshold is -62dbm；Preferably, the first pre-determined threshold is less than the second pre-determined threshold.

Correspondingly, based on above-mentioned setting, when needs carry out data transmission, and not in the channel competition packet that the AP that present channel parses this BSS is sent, website can detect the first signal detection energy of present channel by signal detection module 1003, and when the first signal detection energy is less than the first pre-determined threshold, enabling channel competition module 1201, channel sends channel competition packet progress channel competition in this prior.

Further, when this BSS competition present channel success, and when including the scheduling information for this website in the downlink PPDU that receives of website or trigger frame, website is before carrying out data transmission, the second signal that the successful present channel of the competition can also be detected by signal detection module 1203 detects energy, and when second signal detection energy is less than the second pre-determined threshold, enabled data transmission module 1202 is carried out according to the scheduling information for this website for including in downlink PPDU or trigger frame The transmission of upstream or downstream data.

In an alternative embodiment, the signal detection module 1003 can be specifically used for, and the second signal for detecting the successful present channel whole bandwidth of competition detects energy；Or, the second signal of the detection downlink PPDU competed in successful present channel or the subband for the scheduling information instruction for the website for including in trigger frame detects energy.

Figure 13 is please referred to, Figure 13 is a kind of structural schematic diagram of website provided in an embodiment of the present invention.Wherein, the website shown such as Figure 13 may include: bus 1304, and with the processor 1301 of the bus interconnection, memory 1302, and input/output module 1303, program code is stored in the memory 1302, and the processor 1301, for calling the program code stored in the memory 1302, execution is following to be operated:

When website needs carry out data transmission, and not in the channel competition packet that the AP that present channel parses this BSS is sent, channel competition packet is sent in the present channel by output output module 1303, so that the AP of described BSS when the present channel parses the channel competition packet, determines that this BSS competes the present channel success；

The down physical layer protocol Data Unit PPDU or trigger frame that the AP of described BSS is sent are received in the successful present channel of competition by output output module 1303；

If so, carrying out uplink or downlink data transmission for the scheduling information of this website according to including in the downlink PPDU or trigger frame by output output module 1303.

It in an alternative embodiment, include the channel state information of the present channel in the channel competition packet, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information.

In an alternative embodiment, the processor 1301 calls the program code stored in the memory 1302 that before the present channel sends channel competition packet, following operation can also be performed by input/output module 1303:

Detect the first signal detection energy of the present channel；

If in the downlink PPDU or trigger frame include the scheduling information for this website, it is described according to include in the downlink PPDU or trigger frame for local terminal scheduling information progress uplink or Before downlink data transmission, further includes:

If being less than, described the step of uplink or downlink data transmission are carried out according to the scheduling information for this website for including in the downlink PPDU or trigger frame by input/output module 1303 is executed.

In an alternative embodiment, the processor 1301 calls the program code stored in the memory 1302 to detect the second signal detection energy of the successful present channel of competition, can specifically include:

It should be noted that, website shown in Figure 13 only denotes in website for component needed for executing channel competition method provided in an embodiment of the present invention, the other assemblies such as physical button, power supply, the shell that can have for the website embodiment of the present invention does not indicate, because this does not influence the realization of the embodiment of the present invention.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of communication device, which can be a kind of structural schematic diagram of communication device provided in an embodiment of the present invention, may include: for AP or applied to the processor in AP, as shown in figure 14

Channel competition module 1401 sends channel competition packet in the present channel, to carry out channel competition for carrying out data transmission when AP needs, and not in the channel competition packet that the either site that present channel parses this basic service set BSS is sent；

In the embodiment of the present invention, it is contemplated that in systems, will include multiple with the BSS associated website of AP in each BSS, and after AP carries out running time-frequency resource scheduling to website, website just be can be carried out Transmitting uplink data, and AP needs successful contention that could carry out running time-frequency resource scheduling to website to channel, if AP competitive channel fails, can not then running time-frequency resource scheduling be carried out to website, to influence the transmitting uplink data of website, therefore, for the data transmission efficiency in raising system, need to improve the success rate that AP seizes channel.

In the embodiment of the present invention, when in BSS AP needs carry out data transmission, and not present channel parse this BSS website send channel competition packet when, AP can send channel competition packet carry out channel competition

Further, in embodiments of the present invention, after the channel competition packet that the AP that either site receives this BSS in BSS is sent, response frame can be sent to the AP of this BSS, the website of this BSS is scheduled with triggering the AP of this BSS.Correspondingly, after AP determines competition present channel success, the reception condition for the response frame that AP can be sent according to the either site of this BSS is scheduled the website of this BSS.

In an alternative embodiment, the data transmission module 1402 can be specifically used for when the response frame sent in the successful either site of competition, broadcast the downlink PPDU or trigger frame to this BSS using the successful present channel of competition.

Specifically, website in BSS is in the channel competition packet that the AP that present channel parses this BSS is sent, it can determine this BSS competition present channel success, and then the website can detecte the signal detection energy of the successful present channel of the competition, and judge whether the signal detection energy is less than above-mentioned first pre-determined threshold, if being less than, response frame is sent to the AP of this BSS using the successful present channel of the competition, signal interference is generated with the adjacent sites to the website, so that the signal detection energy for the successful present channel of the competition that the adjacent sites of the website detect increases, to, the adjacent sites that the website can be reduced participate in competing the probability of the present channel, realize receiving end protection.

Correspondingly, AP is determined after competition present channel success, into before data transfer phase, when the response frame that the either site that AP receives this BSS is sent, AP can consider the website in this BSS there are channel idle, to which AP can be scheduled the website of this BSS, and including to this BSS in the successful present channel of the competition by data transmission module 1402 includes the downlink PPDU or trigger frame for being directed to the scheduling information of multiple websites of this BSS；Otherwise, AP can not be to this The website of BSS is scheduled.

In another alternative embodiment, the data transmission module 1402, it can be specifically used for when the response frame that the website for receiving described BSS in the successful present channel of competition is sent, include the channel state information for the successful present channel of the competition that corresponding website detects and the mark of the website in the response frame, multiple websites to be scheduled are determined according to the mark of the channel state information and website that include in the response frame；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.

Specifically, website in BSS is in the channel competition packet that the AP that present channel parses this BSS is sent, it is considered that this BSS competition present channel success, and then the website can detecte the signal detection energy of the successful present channel of the competition, and judge whether the signal detection energy is less than above-mentioned first pre-determined threshold, if being less than, response frame is sent to the AP of this BSS using the successful present channel of the competition, wherein, the website can randomly choose a sub-channels from the successful present channel of the competition and send the response frame, it may include the channel state information for the successful present channel of the competition that the website detects in the response frame, and the mark of the website, the channel state information may include history SNR, instantaneous interference intensity etc..

Correspondingly, AP is determined after competition present channel success, into before data transfer phase, when the response frame that the website that AP receives this BSS is sent, and when the channel state information of the successful present channel of the competition detected in the response frame including corresponding website, the mark of channel state information and website that data transmission module 1402 can include in frame according to response determines multiple websites to be scheduled, and generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled, and then the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to this BSS using the successful present channel of the competition.

In an alternative embodiment, communication device shown in Figure 14 can also include:

Signal detection module 1403, for detecting the first signal detection energy of the present channel；

Correspondingly, the channel competition module 1401 can be specifically used for when the first signal detection energy that the signal detection module 1403 detects is less than the first pre-determined threshold, send channel competition packet in the present channel；

The response frame is that the website of described BSS parses this BSS's in the present channel The channel competition packet that AP is sent, and when detecting the signal detection energy of the present channel less than the first pre-determined threshold, it is sent using the present channel to the AP of described BSS；

The signal detection module 1403 can be also used for the second signal detection energy for detecting the channel；

Correspondingly, the data transmission module 1402, it can be specifically used for competing successful present channel to described BSS broadcast downstream PPDU or trigger frame using described when the second signal detection energy that the signal detection module 1403 detects is less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold.

Figure 15 is please referred to, Figure 15 is the structural schematic diagram of AP provided in an embodiment of the present invention a kind of.Wherein, AP as shown in figure 15 may include: bus 1504, and with the processor 1501 of the bus interconnection, memory 1502, and input/output module 1503, program code is stored in the memory 1502, and the processor 1501, for calling the program code stored in the memory 1502, execution is following to be operated:

When AP needs carry out data transmission, and not present channel parse this basic service set BSS either site send channel competition packet when, by input/output module 1503 the present channel send channel competition packet, to carry out channel competition；

After determining competition present channel success, according to the reception condition for the response frame that the either site of described BSS is sent, it include the scheduling information for multiple websites of this BSS by input/output module 1503 using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.

In an alternative embodiment, the reception condition for the response frame that the processor 1501 calls the program code stored in the memory 1502 to be sent according to the either site of described BSS sends the downlink PPDU or trigger frame, can specifically include:

If so, competing successful present channel to this BSS broadcast downstream PPDU or trigger frame using described by input/output module 1503.

In an alternative embodiment, the processor 1501 calls the program code stored in the memory 1502 according to the reception condition transmission of the response frame of the either site of described BSS transmission Downlink PPDU or trigger frame can specifically include:

Broadcast the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled to described BSS using the successful present channel of competition by input/output module 1503.

In an alternative embodiment, the processor 1501 calls the program code stored in the memory 1502 that before the present channel sends channel competition packet, following steps can also be performed by input/output module 1503:

Detect the first signal detection energy of the present channel；Judge the first signal detection energy whether less than the first pre-determined threshold；If so, executing through input/output module 1503 the step of the present channel sends channel competition packet；

The processor 1501 call the program code stored in the memory 1502 by input/output module 1503 using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, following operation can also be performed:

If the step of second signal detection energy less than the second pre-determined threshold, is executed through input/output module 1503 using the successful present channel of competition to described BSS broadcast downstream PPDU or trigger frame.

It should be noted that AP shown in figure 15 is only denoted for component needed for executing channel competition method provided in an embodiment of the present invention in AP, the physical button that can have for AP, The other assemblies embodiment of the present invention such as power supply, shell does not indicate, because this does not influence the realization of the embodiment of the present invention.

Based on system architecture shown in FIG. 1, the embodiment of the invention provides a kind of communication device, which can be a kind of structural schematic diagram of communication device provided in an embodiment of the present invention, may include: for AP or applied to the processor in AP, as shown in figure 16

Channel competition module 1601, the channel competition packet sent for judging whether the access point AP for parsing this BSS in present channel；If so, determining that described BSS competes the present channel success；

Data transmission module 1602, for sending response frame to the AP of described BSS in the successful present channel of competition, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition；When in downlink PPDU or trigger frame including the scheduling information for this website, uplink or downlink data transmission are carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.

In view of in systems, it will include the multiple and BSS associated website of AP in each BSS, and after AP carries out running time-frequency resource scheduling to website, website just can be carried out transmitting uplink data, and AP needs successful contention that could carry out running time-frequency resource scheduling to website to channel, if AP competitive channel fails, can not then running time-frequency resource scheduling be carried out to website, to influence the transmitting uplink data of website, therefore, for the data transmission efficiency in raising system, need to improve the success rate that AP seizes channel.

In the embodiment of the present invention, when AP needs carry out data transmission, and not present channel parse this BSS website send channel competition packet when, AP can send channel competition packet, to carry out channel competition.When website present channel parse this BSS AP send channel competition packet when, determine this BSS competition present channel success.

The channel that either site determines that the AP for parsing this BSS in present channel is sent in BSS is competing It strives after packet, response frame can be sent to the AP of this BSS in the successful present channel of the competition, the website of this BSS is scheduled with triggering the AP of this BSS.

In the embodiment of the present invention, when AP competition present channel success, and when receiving the response frame of website transmission of this BSS, can use the successful present channel of the competition and broadcast to this BSS includes the downlink PPDU or trigger frame for being directed to the scheduling information of multiple websites of this BSS.

Correspondingly, after downlink PPDU or trigger frame that the AP that data transmission module 1602 receives this BSS is sent, it may determine that in downlink PPDU or trigger frame whether include the scheduling information for being directed to this website, and when included, uplink or downlink data transmission should be carried out for the scheduling information of this website according to include in downlink PPDU or trigger frame.

Such as, AP can include the scheduling information of website to be scheduled in the domain SIG in downlink PPDU, the scheduling information can indicate that AP is the running time-frequency resource of corresponding website distribution, to, corresponding website can determine time and the frequency domain for receiving the downlink data that AP is sent according to the running time-frequency resource, or, carrying out time and the frequency domain of transmitting uplink data.

In an alternative embodiment, communication device shown in Figure 16 can also include:

Signal detection module 1603, for detecting the first signal detection energy of the present channel；

Correspondingly, in an alternative embodiment, the data transmission module 1602 can be specifically used for when the first signal detection energy that the signal detection module 1603 detects is less than the first pre-determined threshold, send response frame to the AP of described BSS in the successful present channel of competition.

In the alternative embodiment, when channel competition module 1601 determines the success of this BSS competitive channel, the first signal detection energy of the successful present channel of the competition can be detected with enable signal detection module 1603；It, can be to enable data transmission module 1602 when signal detection module 1603 detects the first signal detection energy of the successful present channel of the competition less than the first pre-determined threshold；Data transmission module 1602 is after signal detection module 1603 is enabled; response frame can be sent to the AP of this BSS in the successful present channel of the competition; signal interference is generated with the adjacent sites to the website; the signal detection energy for the present channel for detecting the adjacent sites of the website increases; to; the adjacent sites that the website can be reduced participate in competing the probability of the present channel, realize receiving end protection.

In embodiments of the present invention, when the response frame that the website that AP receives this BSS is sent, it is believed that there are the websites of channel idle in this BSS, thus, AP can be scheduled the website of this BSS, and broadcasting in present channel to this BSS includes the downlink PPDU for being directed to the scheduling information of website of this BSS；Otherwise, AP can not be scheduled the website of this BSS.

In another alternative embodiment, the data transmission module 1602, it can be specifically used for when the first signal detection energy that the signal detection module 1603 detects is less than the first signal detection energy, a sub-channels are randomly choosed from the successful present channel of competition, and the response frame is sent to the AP of described BSS using the subchannel, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS is according to the channel state information for including in the response frame received, and the mark of website determines website to be scheduled.

In the alternative embodiment, when channel competition module 1601 determines the success of this BSS competitive channel, the first signal detection energy of the successful present channel of the competition can be detected with enable signal detection module 1603；It, can be to enable data transmission module 1602 when signal detection module 1603 detects the first signal detection energy of the successful present channel of the competition less than the first pre-determined threshold；Data transmission module 1602 is after signal detection module 1603 is enabled, a sub-channels can be randomly choosed from the successful present channel of the competition, and response frame is sent to the AP of this BSS using the subchannel, it include the channel state information for the successful present channel of the competition that this website detects and the mark of this website in the response frame.

When the response frame that the website that AP receives this BSS is sent, it can be according to the channel state information for including in the response frame, and the mark of website, determine website to be scheduled, in turn, AP can be scheduled the website to be scheduled of this BSS, broadcast the downlink PPDU of the scheduling information including the website to be scheduled to this BSS in present channel；Otherwise, AP can not be scheduled the website of this BSS.

In an alternative embodiment, the signal detection module 1603 can be also used for after in the downlink PPDU or trigger frame including the scheduling information for this website, and the second signal for detecting the successful present channel of competition detects energy；

Correspondingly, the data transmission module 1602, it can be also used for carrying out uplink or downlink data transmission according to the scheduling information for including in the downlink PPDU or trigger frame when the second signal detection energy that the signal detection module 1603 detects is less than the second pre-determined threshold.

In an alternative embodiment, the signal detection module 1603, the second signal that can be specifically used for detecting the successful present channel whole bandwidth of competition detect energy；Or, the second signal of the subband for the scheduling information instruction for this website for including in PPDU described in the detection successful present channel of competition or trigger frame detects energy.

Figure 17 is please referred to, Figure 17 is a kind of structural schematic diagram of website provided in an embodiment of the present invention.Wherein, website as shown in figure 17 may include: bus 1704, and with the processor 1701 of the bus interconnection, memory 1702, and input/output module 1703, program code is stored in the memory 1702, and the processor 1701, for calling the program code stored in the memory 1702, execution is following to be operated:

Judge whether the channel competition packet that the access point AP for parsing this BSS in present channel is sent；If so, determining that described BSS competes the present channel success；

Response frame is sent to the AP of described BSS in the successful present channel of competition by input/output module 1703, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；

The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition by input/output module 1703；

If so, carrying out uplink or downlink data transmission for the scheduling information of this website according to including in the downlink PPDU or trigger frame by input/output module 1703.

In an alternative embodiment, after the processor 1701 calls the program code stored in the memory 1702 to determine that described BSS competes the present channel success, and following operation can also be performed before the successful present channel of competition sends response frame to the AP of described BSS by input/output module 1703:

Detect the first signal detection energy of the present channel；

If so, executing the input/output module that passes through the step of the successful present channel of competition sends response frame to the AP of described BSS.

Detect the first signal detection energy of the present channel；

If so, executing the input/output module 1703 that passes through the step of the successful present channel of competition sends response frame to the AP of described BSS；

It is described that response frame is sent to the AP of described BSS in the successful present channel of competition by input/output module 1703, comprising:

A sub-channels are randomly choosed from the successful present channel of competition, and the response frame is sent to the AP of described BSS using the subchannel by input/output module 1703, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.

In an alternative embodiment, it includes being directed to after the scheduling information of this website in the downlink PPDU or trigger frame that the processor 1701, which calls the program code stored in the memory 1702 to judge, and be directed to according to including in the downlink PPDU or trigger frame by input/output module 1703 before the scheduling information progress uplink or downlink data transmission of this website, following operation can also be performed:

If being less than, executes and uplink or downlink data transmission are carried out according to the scheduling information for including in the downlink PPDU or trigger frame by input/output module 1703.

In an alternative embodiment, the second signal that the processor 1701 calls the program code stored in the memory 1702 to detect the successful present channel of competition detects energy, comprising:

It should be noted that, website shown in Figure 17 only denotes in website for component needed for executing channel competition method provided in an embodiment of the present invention, the other assemblies such as physical button, power supply, the shell that can have for the website embodiment of the present invention does not indicate, because this does not influence the realization of the embodiment of the present invention.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, reference can be made to the related descriptions of other embodiments.

It is apparent to those skilled in the art that for convenience of description and succinctly, system, the specific work process of device and unit of foregoing description can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed device and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, be also possible to electricity, the connection of mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can select some or all of unit therein according to the actual needs to realize the purpose of the embodiment of the present invention.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, is also possible to two or more units and is integrated in one unit.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.Specifically, the mode of required common hardware can be added to realize by software, common hardware includes universal integrated circuit, universal cpu, general-purpose storage, universal elements etc., naturally it is also possible to be realized by the way that specialized hardware includes specific integrated circuit, dedicated cpu, private memory, special components and parts etc..

If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially the part that contributes to existing technology in other words, or all or part of the technical solution can be embodied in the form of software products, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (English: Read-Only Memory, referred to as ROM), deposits at random The various media that can store program code such as access to memory (English: Random Access Memory, referred to as RAM), magnetic or disk.

A kind of channel competition method provided in an embodiment of the present invention and relevant apparatus are described in detail above, used herein a specific example illustrates the principle and implementation of the invention, method of the invention that the above embodiments are only used to help understand；At the same time, for those skilled in the art, according to the present invention, there will be changes in the specific implementation manner and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.

Claims

A kind of channel competition method characterized by comprising

Access point judges the channel competition packet that the either site that this basic service set BSS whether is parsed on present channel is sent；If so, described access point determines that this BSS competes the present channel success；

It include the uplink or down dispatch information for multiple websites of described BSS using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.
The method as described in claim 1, which is characterized in that after determining that described BSS competes the present channel success, and using the successful present channel of competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Record parses within a preset period of time sends the mark of multiple websites of described BSS of channel competition packet in the successful present channel of competition；

It is described to compete successful present channel to described BSS broadcast downstream PPDU or trigger frame using described, comprising:

Determine the scheduling information of the corresponding multiple websites of mark of the multiple website；

Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of the multiple website；

The downlink PPDU or trigger frame of the scheduling information including the multiple website are broadcasted to described BSS using the successful present channel of competition.
It is method according to claim 1 or 2, which is characterized in that after determining that described BSS competes the present channel success, and using the successful present channel of competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Count the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet；

It is described to compete successful present channel to described BSS broadcast downstream PPDU or trigger frame using described, comprising:

Multiple websites to be scheduled are determined according to the channel state information for including in the channel competition packet parsed；

Downlink PPDU or trigger frame are generated, downlink PPDU or trigger frame include the scheduling information of multiple websites to be scheduled；

The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.
Method a method according to any one of claims 1-3, which is characterized in that

The channel competition packet is what the website was sent when needing to carry out data transmission, and detecting the signal detection energy of the present channel less than the first pre-determined threshold；

It is described using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Detect the signal detection energy of the successful present channel of competition；Judge the signal detection energy of the successful present channel of the competition detected whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, execute it is described using the successful present channel of the competition to this BSS broadcast downstream PPDU or trigger frame the step of.
Method as claimed in claim 4, which is characterized in that the signal detection energy of the detection successful present channel of competition, comprising:

Detect the signal detection energy of the successful present channel whole bandwidth of competition；Or,

Detect the signal detection energy of the successful each subband of present channel of competition.
Method as claimed in claim 5, it is characterized in that, when detecting the signal detection energy of the successful each subband of present channel of the competition, the signal detection energy for judging the successful present channel of the competition detected whether less than the second pre-determined threshold include:

Judge the signal detection energy of the successful any subband of present channel of competition whether less than the second pre-determined threshold, if, the signal detection energy of the successful present channel of the competition then confirmly detected is less than the second pre-determined threshold, if it is not, the signal detection energy of the successful present channel of the competition then confirmly detected is greater than or equal to the second pre-determined threshold.
A kind of channel competition method characterized by comprising

When the either site needs in this basic service set BSS carry out data transmission, and not in the channel competition packet that the access point AP that present channel parses this BSS is sent, channel competition packet is sent in the present channel, so that the AP of described BSS when the present channel parses the channel competition packet, determines that this BSS competes the present channel success；

The downlink physical layer protocol that the AP of described BSS is sent is received in the successful present channel of competition Data cell PPDU or trigger frame；

Judge in the downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website；

If so, carrying out uplink or downlink data transmission for the scheduling information of this website according to including in the downlink PPDU or trigger frame.
The method of claim 7, which is characterized in that include the channel state information of the present channel in the channel competition packet, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information.
Method as claimed in claim 7 or 8, which is characterized in that include: before the present channel sends channel competition packet

Detect the first signal detection energy of the present channel；

Judge the first signal detection energy whether less than the first pre-determined threshold；If so, executing the step of the present channel sends channel competition packet；

If in the downlink PPDU or trigger frame including the scheduling information for this website, it is described according to the scheduling information progress uplink or downlink data transmission for this website for including in the downlink PPDU or trigger frame before, further includes:

Detect the second signal detection energy of the successful present channel of competition；Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, the step of uplink or downlink data transmission are carried out according to the scheduling information for this website for including in the downlink PPDU or trigger frame is executed.
Method as claimed in claim 9, which is characterized in that the second signal of the detection successful present channel of competition detects energy, comprising:

Detect the second signal detection energy of the successful present channel whole bandwidth of competition；Or,

The second signal for detecting the subband for the scheduling information instruction for this website for including in the PPDU or trigger frame in the successful present channel of competition detects energy.
A kind of channel competition method characterized by comprising

When access point needs carry out data transmission, and not present channel parse this basic service set BSS either site send channel competition packet when, the present channel send channel competition packet, to carry out channel competition；

After determining competition present channel success, according to the sound of the either site of described BSS transmission The reception condition for answering frame includes the scheduling information for multiple websites of this BSS using the successful present channel of the competition to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame.
Method as claimed in claim 11, which is characterized in that the reception condition for the response frame that the either site according to described BSS is sent sends the downlink PPDU or trigger frame, comprising:

Judge whether to receive the response frame that the either site of described BSS is sent in the successful present channel of competition；

If so, competing successful present channel to this BSS broadcast downstream PPDU or trigger frame using described.
Method as claimed in claim 11, which is characterized in that the reception condition for the response frame that the either site according to described BSS is sent sends the downlink PPDU or trigger frame, comprising:

Judge whether to receive the response frame that the either site of described BSS is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects and the mark of the website in the response frame；

If receiving the response frame that the website of this BSS is sent in the successful present channel of competition, multiple websites to be scheduled are determined according to the mark of the channel state information and website that include in the response frame；

Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of multiple websites to be scheduled；

The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.
Method as described in claim 11-13 is any, which is characterized in that the present channel send channel competition packet before include: the first signal detection energy for detecting the present channel；Judge the first signal detection energy whether less than the first pre-determined threshold；If so, executing the step of the present channel sends channel competition packet；

The channel competition packet that the website that the response frame is described BSS is sent in the AP that the present channel parses this BSS, and when detecting the signal detection energy of the present channel less than the first pre-determined threshold, sent using the present channel to the AP of described BSS；

It is described using the successful present channel of the competition to before described BSS broadcast downstream PPDU or trigger frame, further includes:

Detect the second signal detection energy of the present channel；Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If the step of second signal detection energy less than the second pre-determined threshold, is executed using the successful present channel of competition to described BSS broadcast downstream PPDU or trigger frame.
A kind of channel competition method characterized by comprising

Either site in basic service set BSS judges whether the channel competition packet that the access point AP for parsing this BSS in present channel is sent；If so, determining that described BSS competes the present channel success；

Response frame is sent to the AP of described BSS in the successful present channel of competition, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；

The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition；

Judge in the downlink PPDU or trigger frame whether to include the scheduling information for being directed to this website；

If so, carrying out uplink or downlink data transmission for the scheduling information of this website according to including in the downlink PPDU or trigger frame.
Method as claimed in claim 15, which is characterized in that after described BSS competition of determination present channel success and described before the successful present channel of competition sends response frame to the AP of described BSS, further includes:

Detect the first signal detection energy of the present channel；

Judge whether the first signal detection energy is less than first pre-determined threshold；

If so, executing described the step of the successful present channel of competition sends response frame to the AP of described BSS.
Method as claimed in claim 15, which is characterized in that after described BSS competition of determination present channel success and described before the successful present channel of competition sends response frame to the AP of described BSS, further includes:

Detect the first signal detection energy of the present channel；

Judge whether the first signal detection energy is less than first pre-determined threshold；

If so, executing described the step of the successful present channel of competition sends response frame to the AP of described BSS；

It is described to send response frame to the AP of described BSS in the successful present channel of competition, comprising:

Randomly choose a sub-channels from the successful present channel of the competition, and using the subchannel to The AP of described BSS sends the response frame, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.
Method as described in claim 16 or 17, it is characterized in that, judge to include being directed to after the scheduling information of this website in the downlink PPDU or trigger frame, and before the scheduling information progress uplink or downlink data transmission for being directed to this website according to including in the downlink PPDU or trigger frame, further includes:

Detect the second signal detection energy of the successful present channel of competition；

Judge the second signal detection energy whether less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold；

If being less than, executes and uplink or downlink data transmission are carried out according to the scheduling information for including in the downlink PPDU or trigger frame.
Method as claimed in claim 18, which is characterized in that

The second signal of the detection successful present channel of competition detects energy, comprising:

Detect the second signal detection energy of the successful present channel whole bandwidth of competition；Or,

The second signal for detecting the subband for the scheduling information instruction for this website for including in PPDU described in the successful present channel of competition or trigger frame detects energy.
A kind of communication device, the communication device are access point AP or applied to the processors in access point AP characterized by comprising

Channel competition module, the channel competition packet sent for judging the either site for whether parsing this basic service set BSS on present channel；If so, determining that this BSS competes the present channel success；

Data transmission module, for including the uplink or down dispatch information for multiple websites of described BSS to described BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, in the downlink PPDU or trigger frame using the successful present channel of the competition.
Communication device as claimed in claim 20, which is characterized in that

The channel competition module, after being also used to determine that this BSS competes the present channel success, record parses within a preset period of time sends the mark of multiple websites of described BSS of channel competition packet in the successful present channel of competition；

The data transmission module is also used to determine the scheduling information of the corresponding multiple websites of mark of the multiple website；Downlink PPDU or trigger frame are generated, the downlink PPDU or trigger frame include the scheduling information of the multiple website；The downlink PPDU or trigger frame of the scheduling information including the multiple website are broadcasted to described BSS using the successful present channel of competition.
Communication device as described in claim 20 or 21, which is characterized in that

The channel competition module after being also used to determine that this BSS competes the present channel success, counts the channel competition packet that the website of this BSS parsed within a preset period of time is sent in the successful present channel of competition；It include the channel state information for the successful present channel of the competition that corresponding website detects in the channel competition packet；

The data transmission module is also used to determine multiple websites to be scheduled according to the channel state information for including in the channel competition packet parsed；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.
Communication device as described in claim 20-22 is any, which is characterized in that

The channel competition packet is what the website was sent when needing to carry out data transmission, and detecting the signal detection energy of the present channel less than the first pre-determined threshold；

The communication device further include:

Signal detection module, for detecting the signal detection energy of the successful present channel of competition；

The data transmission module is also used to when signal detection the second pre-determined threshold of energy for the successful present channel of the competition that the signal detection module detects, competes successful present channel to this BSS broadcast downstream PPDU or trigger frame using described；Second pre-determined threshold is different from first pre-determined threshold.
Communication device as claimed in claim 23, which is characterized in that when the signal detection module detects the signal detection energy of the successful each subband of present channel of competition,

The data transmission module, specifically for when the signal detection energy of the successful any subband of present channel of competition is less than the second pre-determined threshold, the signal detection energy of the present channel confirmly detected is less than the second pre-determined threshold, otherwise, it determines the signal detection energy of the present channel detected is greater than or equal to the second pre-determined threshold.
A kind of communication device, the communication device is for website or applied to the processor in website characterized by comprising

Channel competition module, for carrying out data transmission when website needs, and not in the channel competition packet that the access point AP that present channel parses this basic service set BSS is sent, channel competition packet is sent in the present channel, so that the AP of described BSS when the present channel parses the channel competition packet, determines that this BSS competes the present channel success；

Data transmission module, for receiving the down physical layer protocol Data Unit PPDU or trigger frame that the AP of described BSS is sent in the successful present channel of competition；When in the downlink PPDU or trigger frame including the scheduling information for this website, the transmission of upstream or downstream data is carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.
Communication device as claimed in claim 25, which is characterized in that include the channel state information of the present channel in the channel competition packet, so that the AP of this BSS determines targeted sites to be scheduled according to the channel state information.
Communication device as described in claim 25 or 26, which is characterized in that the communication device further include:

Signal detection module, for detecting the first signal detection energy of the present channel；

The channel competition module when specifically for the first signal detection energy for detecting when the signal detection module less than the first pre-determined threshold, sends channel competition packet in the present channel；

The signal detection module, if being also used in the downlink PPDU or trigger frame includes the scheduling information for this website, the second signal for detecting the successful present channel of competition detects energy；

The data transmission module, when detecting energy less than the second pre-determined threshold specifically for the second signal detected when the signal detection module, the transmission of upstream or downstream data is carried out according to the scheduling information for this website for including in the downlink PPDU or trigger frame；Second pre-determined threshold is different from first pre-determined threshold.
A kind of communication device, the communication device are access point AP or applied to the processors in access point AP characterized by comprising

Channel competition module sends channel competition packet in the present channel, to carry out channel competition for carrying out data transmission when AP needs, and not in the channel competition packet that the either site that present channel parses this basic service set BSS is sent；

Data transmission module is used for after determining competition present channel success, according to the reception condition for the response frame that the either site of described BSS is sent, competes successful present channel to described using described It include the scheduling information for multiple websites of this BSS in BSS broadcast downstream physical layer protocol data unit PPDU or trigger frame, the downlink PPDU or trigger frame.
Communication device as claimed in claim 28, which is characterized in that

The data transmission module, specifically for broadcasting the downlink PPDU or trigger frame to this BSS using the successful present channel of competition when receiving the response frame of either site transmission of described BSS in the successful present channel of competition.
Communication device as claimed in claim 28, which is characterized in that

The data transmission module, specifically for when receiving the response frame of website transmission of described BSS in the successful present channel of competition, include the channel state information for the successful present channel of the competition that corresponding website detects and the mark of the website in the response frame, multiple websites to be scheduled are determined according to the mark of the channel state information and website that include in the response frame；Generate the downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled；The downlink PPDU or trigger frame of the scheduling information including multiple websites to be scheduled are broadcasted to described BSS using the successful present channel of competition.
Communication device as described in claim 28-30 is any, which is characterized in that the communication device further include:

Signal detection module, for detecting the first signal detection energy of the present channel；

The channel competition module when specifically for the first signal detection energy for detecting when the signal detection module less than the first pre-determined threshold, sends channel competition packet in the present channel；

The channel competition packet that the website that the response frame is described BSS is sent in the AP that the present channel parses this BSS, and when detecting the signal detection energy of the present channel less than the first pre-determined threshold, sent using the present channel to the AP of described BSS；

The signal detection module is also used to detect the second signal detection energy of the channel；

The data transmission module when detecting energy less than the second pre-determined threshold specifically for the second signal detected when the signal detection module, competes successful present channel to described BSS broadcast downstream PPDU or trigger frame using described；Second pre-determined threshold is different from first pre-determined threshold.
A kind of communication device, the communication device is for website or applied to the processor in website characterized by comprising

Channel competition module, for judging whether that the access point AP for parsing this BSS in present channel is sent Channel competition packet；If so, determining that described BSS competes the present channel success；

Data transmission module, for sending response frame to the AP of described BSS in the successful present channel of competition, so that the AP of described BSS competes successful present channel to described BSS broadcast downstream PPDU or trigger frame when receiving the response frame, using described；The down physical layer protocol Data Unit PPDU that the AP of described BSS is sent is received in the successful present channel of competition；When in downlink PPDU or trigger frame including the scheduling information for this website, uplink or downlink data transmission are carried out for the scheduling information of this website according to including in the downlink PPDU or trigger frame.
Communication device as claimed in claim 32, which is characterized in that the communication device further include:

Signal detection module, for detecting the first signal detection energy of the present channel；

The data transmission module when specifically for the first signal detection energy for detecting when the signal detection module less than the first pre-determined threshold, sends response frame to the AP of described BSS in the successful present channel of competition；Or, when the signal detection module detects the first signal detection energy less than the first signal detection energy, a sub-channels are randomly choosed from the successful present channel of competition, and the response frame is sent to the AP of described BSS using the subchannel, it include the channel state information for the successful present channel of the competition that this website detects in the response frame, and the mark of this website, so that the AP of described BSS determines website to be scheduled according to the mark of the channel state information and website that include in the response frame received.
Communication device as claimed in claim 33, which is characterized in that

The signal detection module is also used to after in the downlink PPDU or trigger frame including the scheduling information for this website, and the second signal for detecting the successful present channel of competition detects energy；

The data transmission module is also used to carry out uplink or downlink data transmission according to the scheduling information for including in the downlink PPDU or trigger frame when the second signal detection energy that the signal detection module detects is less than the second pre-determined threshold；Second pre-determined threshold is different from first pre-determined threshold.