CN107005302A - A kind of method of channel access, site apparatus and access point apparatus - Google Patents

Abstract

The embodiment of the invention discloses a kind of method of channel access, site apparatus and access point apparatus, one of which method includes：The inquiry message frame that access point apparatus is sent is received, the inquiry message frame includes the first configured information, and first configured information is used for the available channel for indicating described access point equipment；At least one described idle single channel or at least one described idle sub-channels are selected to send request operation frame to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；Receive the transmission of described access point equipment allows operation frame, the information for allowing operation frame to include the channel that described access point equipment is site apparatus distribution；Data are sent on the channel of the distribution.Using the present invention, the access efficiency of network can be improved.

Description

A kind of method of channel access, site apparatus and access point apparatus Technical field

The present invention relates to wireless local area network technology field, more particularly to a kind of method of channel access, site apparatus and access point apparatus.

Background technology

Base station in WLAN is also referred to as access point (Access Point, abbreviation：AP), single user transmission and descending multi-user MIMO (Multiple-Input Multiple-Output have been applied in existing protocol of wireless local area network, multiple-input and multiple-output) technology, due to the further development of many data frame detection techniques, including uplink OFDM access technology (Orthogonal Frequency Division Multiple Access, abbreviation：) and uplink multi-users MIMO (Multiple-Input Multiple-Output OFDMA, multiple-input and multiple-output) including uplink multi-users technology receive more concerns, and in uplink multi-users technology, it is the necessary process that channel is distributed for multi-user to obtain uplink multi-users request.

At present, obtaining the way of uplink multi-users request is：Using MIMO technology or orthogonal frequency division multiplexi (Orthogonal Frequency Division Multiple, abbreviation on single channel：OFDM), i.e. AP is by single channel transmission control frame, if by SIFS time channel idles, the site apparatus for receiving the control frame then sends request operation frame (Request To Send, abbreviation：RTS), when AP receives the RTS, then the data cached of STA transmissions in need is judged.This method for obtaining uplink multi-users request, it is only applicable to the single-channel communication in 802.11a standards, for the multichannel communication in the standards such as 802.11n, 802.11ac, if still obtaining uplink multi-users request using aforesaid way, the efficiency of STA access networks is low.

The content of the invention

The invention provides a kind of method of channel access, site apparatus and access point apparatus, the efficiency of site apparatus access network can be improved.

First aspect present invention provides a kind of method of channel access, including：

Site apparatus receives the inquiry message frame that access point apparatus is sent, and the inquiry message frame includes first and referred to Show information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

The site apparatus selects at least one described idle single channel or at least one described idle sub-channels to send request operation frame to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

What the site apparatus reception described access point equipment was sent allows to operate frame, described to allow to operate frame to include the information for the channel that described access point equipment is distributed for the site apparatus；

The site apparatus sends data on the channel of the distribution.

In the first possible implementation of first aspect, methods described also includes：

The site apparatus intercepts available channel；

The site apparatus selects at least one described idle single channel or at least one described idle sub-channels to send request operation frame to described access point equipment in the available channel of described access point equipment to be included：

The site apparatus described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.

In second of possible implementation of first aspect, methods described also includes：

The site apparatus generates a random value；

The site apparatus judges whether the random value of generation is less than preset value；

If so, the site apparatus then perform it is described selected in the available channel of described access point equipment at least one described idle single channel or at least one described idle sub-channels to described access point equipment send request operation frame the step of.

With reference to the first possible implementation of first aspect, in the third possible implementation, methods described also includes：

The site apparatus generates a random value；

The site apparatus judges whether the random value of generation is less than preset value；

If so, the site apparatus then performs the available channel and the website in described access point equipment At least one described idle single channel or at least one described idle sub-channels are selected to send the step of request operates frame to described access point equipment in the common factor channel of the available channel of equipment.

With reference to second of first aspect or the third any possible implementation, in the 4th kind of possible implementation, the site apparatus judges whether the random value of generation is less than before preset value, in addition to：

The site apparatus receives the information for the carrying preset value that described access point equipment is sent.

In the 5th kind of possible implementation of first aspect, methods described also includes：

The site apparatus obtains a random back number；

The site apparatus is kept out of the way the random back number of acquisition as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

When the numerical value of the backoff counter is kept to zero, the site apparatus then perform it is described selected in the available channel of described access point equipment at least one described idle single channel or at least one described idle sub-channels to described access point equipment send request operation frame the step of.

With reference to the first possible implementation of first aspect, in the 6th kind of possible implementation, methods described also includes：

The site apparatus obtains a random back number；

The site apparatus is kept out of the way the random back number of acquisition as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

When the numerical value of the backoff counter is kept to zero, the site apparatus, which is then performed, selects at least one described idle single channel or at least one described idle sub-channels to send the step of request operates frame to described access point equipment in the common factor channel of the available channel of the available channel in described access point equipment and the site apparatus.

With reference to any possible implementation in the 5th kind of first aspect or the 6th kind, in the 7th kind of possible implementation, the whole idle time slots of the available channel for including described access point equipment per an idle time slot, or, the whole idle time slots of the common factor channel of the available channel of the available channel of described access point equipment and the site apparatus, or, the idle time slot of main channel of the available channel of described access point equipment.

, may be real at the 8th kind with reference to any possible implementation in the 5th kind of first aspect or the 6th kind In existing mode, if the idle time slot of main channel per an idle time slot for the available channel of described access point equipment, the channel of the site apparatus selection at least includes at least one subchannel in the main channel, or the main channel.

With reference to first aspect or first aspect the first to any possible implementation in the 8th kind, in the 9th kind of possible implementation, the site apparatus selects at least one described idle single channel or at least one described idle sub-channels to be sent to described access point equipment before asking operation frame in the available channel of described access point equipment, and methods described also includes：

The site apparatus waits at least one time span, wherein, the time span includes any one in clearance D IFS and arbitration interframe gap AIFS or combination between short interframe gap SIFS, point interframe gap PIFS, distributed frame.

Second aspect of the present invention provides a kind of method of channel access, including：

Access point apparatus sends inquiry message frame by available channel, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

Described access point equipment receives the request operation frame of at least one site apparatus transmission, and each request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

Described access point equipment operates frame to be that corresponding site apparatus distributes channel according to the request of reception；

Described access point equipment is sent to site apparatus each described to be allowed to operate frame, it is described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.

In the first possible implementation of second aspect, each request operation frame also includes the data cached data message of correspondence site apparatus, and described access point equipment operates frame to be that corresponding site apparatus distribution channel includes according to the request of reception：

Described access point equipment is that corresponding site apparatus distributes channel according to second configured information and the data message.

, may implementation at second with reference to the first possible implementation of second aspect or second aspect In, described access point equipment sends inquiry message frame by available channel to be included：

Described access point equipment sends the inquiry message frame on all channels of the available channel simultaneously.

With reference to second aspect or second aspect the first to any possible implementation in second, in the third possible implementation, described access point equipment to each described site apparatus send allow operation frame include：

The request of the described access point equipment by receiving each site apparatus operates the channel of frame, and being sent to site apparatus each described allows to operate frame；Or,

Described access point equipment is by the channel distributed for site apparatus each described, and being sent to site apparatus each described allows to operate frame；Or,

The available channel that described access point equipment passes through described access point equipment, being sent in polymerized form to all each site apparatus for being successfully transmitted request operation frame allows to operate frame, the information for allowing operation to include the channel that described access point equipment is the site apparatus distribution for being each successfully transmitted request operation frame.

With reference to second aspect or second aspect the first into the third any possible implementation, in the 4th kind of possible implementation, methods described also includes：

Described access point equipment sends the information for carrying preset value by the available channel of described access point equipment.

Third aspect present invention provides a kind of site apparatus, including：

Receiving module, inquiry message frame for receiving access point apparatus transmission, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

Processing module, frame is operated for selecting at least one described idle single channel or at least one described idle sub-channels to send request to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

The receiving module is additionally operable to：

Receive the transmission of described access point equipment allows operation frame, the information for allowing operation frame to include the channel that described access point equipment is site apparatus distribution；

The processing module is additionally operable to：

Data are sent on the channel of the distribution.

In the first possible implementation of the third aspect, the site apparatus also includes：

Module is intercepted, for intercepting available channel；

The processing module specifically for：

Described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.

In second of possible implementation of the third aspect, the site apparatus also includes：

Random value acquisition module, for generating a random value；

Judge module, for judging whether the random value of generation is less than preset value, at least one described idle single channel or at least one described idle sub-channels are selected to send request operation frame to described access point equipment in the available channel of described access point equipment if so, then triggering the processing module.

With reference to the first possible implementation of the third aspect, in the third possible implementation, the site apparatus also includes：

Random value acquisition module, for generating a random value；

Judge module, for judging whether the random value of generation is less than preset value, if so, then trigger the processing module described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.

With reference to second of the third aspect or the third any possible implementation, in the 4th kind of possible implementation, the receiving module is additionally operable to：

Receive the information for the carrying preset value that described access point equipment is sent.

In the 5th kind of possible implementation of the third aspect, the site apparatus also includes：

Random value acquisition module, for obtaining a random back number；

Keep out of the way module, for the random back number of acquisition to be kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one, when the numerical value of the backoff counter is kept to zero, triggers the processing module and selected at least in the available channel of described access point equipment One idle single channel or at least one described idle sub-channels send request operation frame to described access point equipment.

With reference to the first possible implementation of the third aspect, in the 6th kind of possible implementation, the site apparatus also includes：

Random value acquisition module, for obtaining a random back number；

Keep out of the way module, for the random back number of acquisition to be kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one, when the numerical value of the backoff counter is kept to zero, trigger the processing module described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to send the request operation frame to described access point equipment.

With reference to any possible implementation in the 5th kind of the third aspect or the 6th kind, in the 7th kind of possible implementation, the whole idle time slots of the available channel for including described access point equipment per an idle time slot, or, the whole idle time slots of the common factor channel of the available channel of the available channel of described access point equipment and the site apparatus, or, the idle time slot of main channel of the available channel of described access point equipment.

With reference to any possible implementation in the 5th kind of the third aspect or the 6th kind, in the 8th kind of possible implementation, if the idle time slot of main channel per an idle time slot for the available channel of described access point equipment, then the channel of the processing module selection at least includes at least one subchannel in the main channel, or the main channel.

With reference to the third aspect or the third aspect the first to any possible implementation in the 8th kind, in the 9th kind of possible implementation, the processing module is additionally operable to：

When waiting at least one time span, at least one described idle single channel or at least one described idle sub-channels are just selected to send request operation frame to described access point equipment in the available channel of described access point equipment, wherein, the time span includes any one in SIFS, PIFS, DIFS and AIFS or combination.

Fourth aspect present invention provides a kind of method of channel access, including：

Sending module, for sending inquiry message frame by available channel, the inquiry message frame includes first Configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

Receiving module, the request for receiving the transmission of at least one site apparatus operates frame, and each request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

Processing module, for operating frame to be that corresponding site apparatus distributes channel according to the request of reception；

The sending module is additionally operable to：

Being sent to site apparatus each described allows to operate frame, described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.

In the first possible implementation of fourth aspect, each request operation frame also includes the data cached data message of correspondence site apparatus, the processing module specifically for：

It is that corresponding site apparatus distributes channel according to second configured information and the data message.

With reference to the first possible implementation of fourth aspect or fourth aspect, second may in implementation, the sending module specifically for：

The inquiry message frame is sent on all channels of the available channel simultaneously.

With reference to fourth aspect or fourth aspect the first to any possible implementation in second, in the third possible implementation, the sending module specifically for：

The request by receiving each site apparatus operates the channel of frame, and being sent to site apparatus each described allows to operate frame；Or,

By the channel distributed for site apparatus each described, being sent to site apparatus each described allows to operate frame；Or,

Pass through the available channel of described access point equipment, being sent in polymerized form to all each site apparatus for being successfully transmitted request operation frame allows to operate frame, the information for allowing operation to include the channel that described access point equipment is the site apparatus distribution for being each successfully transmitted request operation frame.

With reference to fourth aspect or fourth aspect the first into the third any possible implementation, the sending module is additionally operable to：

The information for carrying preset value is sent by the available channel of described access point equipment.

Fifth aspect present invention provides a kind of site apparatus, the site apparatus includes wireless signal transceiver, memory and processor, wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing following operation：

The inquiry message frame that access point apparatus is sent is received by the wireless signal transceiver, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

At least one described idle single channel or at least one described idle sub-channels are selected to send request operation frame to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

Receive the transmission of described access point equipment allows operation frame, the information for allowing operation frame to include the channel that described access point equipment is site apparatus distribution；

Data are sent on the channel of the distribution.

Sixth aspect present invention provides a kind of access point apparatus, described access point equipment includes wireless signal transceiver, memory and processor, wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing following operation：

Inquiry message frame is sent by available channel, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

The request operation frame that at least one site apparatus is sent is received by the wireless signal transceiver, each request operation frame includes the second configured information, available channel of second configured information for indicating the site apparatus；

Frame is operated to be that corresponding site apparatus distributes channel according to the request of reception；

Being sent by the wireless signal transceiver to site apparatus each described allows to operate frame, it is described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.

Seventh aspect present invention provides a kind of computer-readable storage medium, and the computer-readable storage medium is stored with Program, the part or all of step of the method for the channel access provided when the program is performed including first aspect.

Eighth aspect present invention provides a kind of computer-readable storage medium, and the computer-readable storage medium has program stored therein, the part or all of step of the method for the channel access provided when the program is performed including second aspect.

The aspect of the embodiment of the present invention the 9th also provides a kind of system of channel access, and the system includes access point apparatus and at least one site apparatus, wherein,

The site apparatus such as third aspect, or the first possible implementation of the third aspect, or second of possible implementation of the third aspect, or the third possible implementation of the third aspect, or the 4th kind of possible implementation of the third aspect, or the 5th kind of possible implementation of the third aspect, or the 6th kind of possible implementation of the third aspect, or the 7th kind of possible implementation of the third aspect, the either site apparatus in the 9th kind of possible implementation of the 8th kind of possible implementation or the third aspect of the third aspect；

Described access point equipment such as fourth aspect, or the first possible implementation of fourth aspect, either the third possible implementation of second of fourth aspect possible implementation or fourth aspect, or the access point apparatus in the 4th kind of possible implementation of fourth aspect.

Therefore, the available channel that access point is provided includes multiple idle single channels or multiple idle sub-channels, site apparatus randomly chooses at least one idle single channel in the available channel or at least one idle sub-channels send request operation frame, there can be multiple site apparatus to operate frame by feedback request simultaneously every time, in compared with prior art, for can only having site apparatus feedback request operation frame every time, improve the efficiency that access point distributes channel for site apparatus, and then, improve the efficiency of site apparatus access network, so as to, improve data throughout.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of application scenarios schematic diagram provided in an embodiment of the present invention；

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

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

Fig. 4 is a kind of schematic diagram of scheduling of resource provided in an embodiment of the present invention；

Fig. 5 is the schematic diagram of another scheduling of resource provided in an embodiment of the present invention；

Fig. 6 is a kind of structural representation of site apparatus provided in an embodiment of the present invention；

Fig. 7 is the structural representation of another site apparatus provided in an embodiment of the present invention；

Fig. 8 is the structural representation of another site apparatus provided in an embodiment of the present invention；

Fig. 9 is a kind of structural representation of access point apparatus provided in an embodiment of the present invention；

Figure 10 is the structural representation of another access point apparatus provided in an embodiment of the present invention；

Figure 11 is a kind of system structure diagram of channel access provided in an embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The embodiment of the present invention can apply to WLAN, and the WLAN can be for the Basic Service Set comprising access point (referred to as：BSS, English：Basic Service Set).It will be appreciated that in WIFI (English：Wireless Fidelity, Chinese：Wireless Fidelity) system infrastructure network under, multiple Basic Service Sets can be included in network, each Basic Service Set can include access point apparatus (English：Access Point, abbreviation AP) and multiple site apparatus (English for being associated with the AP：Station, abbreviation STA).

The AP is also referred to as wireless access points or focus etc..AP is the access point that mobile subscriber enters cable network, and major deployments are inside family, inside buildings and garden, and typical covering radius, to rice up to a hundred, can also be deployed in open air for tens meters.AP is equivalent to a connection wired network and the bridge of wireless network, and its main function is to connect together each wireless network clients, then by wireless network access network based on ethernet.

The main accepted standards of AP are IEEE (English：Institute of Electrical and Electronics  Engineers, Chinese：Institute of Electrical and Electric Engineers) 802.11 series.Specifically, AP can be terminal device or the network equipment with WIFI chips.Alternatively, AP can be the equipment for supporting 802.11ax standards.Still optionally further, the AP can be a variety of WLAN (English such as support 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a：Wireless Local Area Network, Chinese：WLAN) standard equipment.

The STA can be wireless communications chips, wireless senser or wireless communication terminal.For example：The mobile phone for supporting WIFI communication function, the tablet personal computer for supporting WIFI communication function, the set top box of support WIFI communication function and the computer for supporting WIFI communication function.Alternatively, website can support 802.11ax standards, still optionally further, and the website supports a variety of WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a.

In order to make it easy to understand, referring to Fig. 1, Fig. 1 is a kind of application scenarios schematic diagram provided in an embodiment of the present invention.This application scene includes 1 AP and 4 STA, it will be understood that, the STA of more or less numbers is there may be in actual applications, and the present invention is not limited, in addition, for multiple AP situation, can be for each AP and the STA of its covering application present invention.

With reference to specific embodiment, the present invention is furture elucidated, it is interpreted as these embodiments to be only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, modification of the those skilled in the art to the various equivalent form of values of the present invention falls within the application appended claims limited range.

Referring to Fig. 2, Fig. 2 is a kind of method flow schematic diagram of channel access provided in an embodiment of the present invention.The embodiment of the present invention is from the description of STA angles.The method of channel access in the embodiment of the present invention as shown in Figure 2 can include：

S201, STA receive the inquiry message frame that AP is sent, and the inquiry message frame includes the first configured information, and first configured information is used for the available channel for indicating the AP, and the available channel of the AP includes multiple idle single channels or multiple idle sub-channels.

Inquire message frame (Request-Request To Send, abbreviation：RRTX the first configured information) is included, first configured information is used for the available channel for indicating the AP, it is assumed that the AP can be communicated on defined 13 channels, but the AP is listened in this 13 channels, only 3 are idle, and AP will can be somebody's turn to do 3 channels are used as available channel；

Wherein, the first configured information can indicate available channel by the centre frequency of each channel；STA and AP can also pre-define the identifier of each channel, and the first configured information can indicate available channel by identifier.

Wherein, single-channel bandwidth can be 20MHz, 30MHz, 80MHz or 160MHz etc., and the embodiment of the present invention is by taking 20MHz as an example；If 20MHz channel is divided into some on frequency domain, each part is a sub-channels, for example, 20MHz channel is divided into 4 parts, i.e. 4 sub-channels on frequency domain, a width of 5MHz of band per sub-channels.

AP available channel can only include multiple idle single channels, multiple idle sub-channels can also be only included, multiple idle single channels and multiple idle sub-channels can also be included simultaneously, AP available channel can be continuous channel, can also be discrete channel, the present invention is not limited.

Concentrated it is pointed out that the method flow for the acquisition STA requests that the embodiment of the present invention is proposed merely illustrates basic service while the handling process of one of STA in the multiple STA performed, the STA can be any STA in its multiple STA.

S202, STA selects at least one described idle single channel or at least one described idle sub-channels to send request operation frame to AP in AP available channel, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the STA.

Request operation frame (Request To X, referred to as：RTX some operation of request) is represented, " X " represents the operation, such as operation is request to send frame (English：Request To Sent, referred to as：RTS), then RTX is RTS, it is necessary to which explanation, the operation is not limited specifically；

Preferably, STA can randomly choose at least one idle single channel, or at least one idle sub-channels in the available channel that the first configured information is indicated, or at least one idle single channel and at least one idle sub-channels send RTX to AP；

Alternatively, STA is when receiving the RRTX of AP transmissions, available channel can be intercepted, again in the common factor channel for the available channel that the available channel listened to and the first configured information are indicated, randomly choose at least one idle single channel, or at least one idle sub-channels, or at least one idle single channel and at least one idle sub-channels send RTX to AP；It is assumed that the first configured information indicate available channel for channel 2, 3 and the available channel that listens to of 4, STA be channel 1,2 and 3, then common factor channel is that channel 2 and 3, STA randomly choose at least one channel in channel 2 and 3 and send RTX；

If STA only have selected a channel, such as an idle single channel, or an idle sub-channels, STA then sends RTX on this channel；If STA have selected multichannel, such as at least two idle single channels, the either combination of at least two idle sub-channels or idle single channel and idle sub-channels, STA then sends RTX on the plurality of channel simultaneously；

Wherein, RTX can also include the STA data cached data messages to be sent, the data message can include data cached type of service (such as voice or video), data length, the delayed data etc., so that AP is that the channel that STA is distributed is more beneficial for the data cached transmission according to the data message.

Still optionally further, after STA receives the RRTX of AP transmissions, the STA can wait at least one time span, just according to RRTX, select feedback channel, wherein, time span can include SIFS (English：Short Inter-frame Space, Chinese：Short interframe gap), PIFS (English：PCF Inter-frame Space, Chinese：Point interframe gap), DIFS (English：Distributed Inter-frame Spacing, Chinese：Distributed interframe gap) and AIFS (English：Arbitration Inter-frame Space, Chinese：Arbitrate interframe gap) in any one or combination.

In a kind of optional embodiment, when STA receives the RRTX of AP transmissions, STA can generate a random value, judge whether the random value of generation is less than preset value, if, the random value of generation is less than or equal to the preset value, and STA just selects at least one described idle single channel or at least one described idle sub-channels to send RTX to AP in AP available channel；If the random value of generation is more than the preset value, and STA then terminates this flow, reduces the probability of the data collision between different STA, so that, improve the efficiency of system.

Wherein, STA can also receive the information of the carrying preset value of AP transmissions before whether the random value for judging generation is less than preset value, and the information for carrying the preset value can be RRTX or other message frames, and the present invention is not limited.

In another optional embodiment, when STA receives the RRTX of AP transmissions, STA can obtain a random back number, the random back number of acquisition is kept out of the way as the initial value of backoff counter again, wherein, per one time slot of free time, then the numerical value of the backoff counter subtracts one, when this keeps out of the way meter When the numerical value of number device is kept to zero, STA just selects at least one described idle single channel or at least one described idle sub-channels to send RTX to AP in AP available channel, by keeping out of the way, reduces the probability of the data collision between different STA, so as to improve the efficiency of system；

Wherein, STA can obtain a random back number in 0~predetermined threshold value, the predetermined threshold value is variable, and STA can change the size of the predetermined threshold value according to the last transmission RTX success or not, for example, STA the last times send RTX failures, illustrate that RTX and other STA RTX sent sent are clashed, then increase the predetermined threshold value, to reduce the probability for getting identical random back number, and then, reduce the number for the STA for keeping out of the way zero simultaneously；AP can also adjust the predetermined threshold value according to the situation of AP available channel, for example, AP available channel is less, such as less than preset channel threshold value, AP can increase the predetermined threshold value, to reduce the probability for getting identical random back number, and then, reduce the number for the STA for keeping out of the way zero simultaneously；

Wherein, the whole idle time slots of available channel that every idle time slot can include AP, or, the whole idle time slots of common factor channel of AP available channel and STA available channel, or, the idle time slot of main channel of AP available channel；

If STA keeps out of the way on all channels of AP available channel, assuming that, the predetermined threshold value is 9, when STA receives the RRTX of AP transmissions, STA can obtain a random back number in 0~9, the random back number is exemplified by 6, the initial value of backoff counter is set to 6 by STA to be kept out of the way, if all channels of current time slots AP available channel are not all of the free time, i.e. at least one idle single channel or at least one idle sub-channels are occupied, illustrate that AP available channel has first been kept out of the way zero other STA occupancy, STA then stops keeping out of the way, and terminates this flow；If all channels of current time slots AP available channel are all idle, illustrate also first to keep out of the way zero without other STA, then backoff counter subtracts one；At least one described idle single channel or at least one described idle sub-channels are just selected to send RTX to AP in AP available channel until backoff counter is kept to zero, STA；

If STA AP available channel and STA available channel common factor channel on keep out of the way, assuming that, the predetermined threshold value is 9, when STA receives the RRTX of AP transmissions, STA can obtain a random back number in 0~9, and the random back number is exemplified by 6, and the initial value of backoff counter is set to 6 by STA to be kept out of the way, if the current time slots common factor channel is not all of the free time, i.e., at least one idle single channel or At least one idle sub-channels is occupied, illustrates other STA occupancy that the common factor channel has first been kept out of the way zero, and STA then stops keeping out of the way, and terminates this flow；If the current time slots common factor channel is all idle, illustrate also first to keep out of the way zero without other STA, then backoff counter subtracts one；At least one described idle single channel or at least one described idle sub-channels are just selected to send RTX to AP in AP available channel until backoff counter is kept to zero, STA；

If STA keeps out of the way in the main channel of AP available channel, assuming that, the predetermined threshold value is 9, and when STA receives the RRTX of AP transmissions, STA can obtain a random back number in 0~9, the random back number is exemplified by 6, the initial value of backoff counter is set to 6 by STA to be kept out of the way, if the current time slots main channel is not idle, illustrates other STA occupancy that the main channel has first been kept out of the way zero, STA then stops keeping out of the way, and terminates this flow；If the current time slots main channel is idle, illustrate also first to keep out of the way zero without other STA, then backoff counter subtracts one；At least one described idle single channel or at least one described idle sub-channels are just selected to send RTX to AP in AP available channel until backoff counter is kept to zero, STA；

Wherein, if STA keeps out of the way in the main channel of AP available channel, the channel that STA is selected in AP available channel at least includes at least one subchannel in the main channel, or the main channel, that is, the channel that STA is selected in AP available channel can include：The main channel, or the main channel and at least one from channel, or the main channel and from least one subchannel in channel, or at least one subchannel in the main channel, at least one subchannel either in the main channel and from least one subchannel at least one subchannel or the main channel in channel and at least one is described from channel；

STA requires to keep out of the way that channel is all idle in backoff procedure, and in this case, zero STA is only kept out of the way simultaneously can just initiate RTX, i.e., all RTX are transmissions simultaneously., whereas if STA is to listen to one or partly keep out of the way channel idle just to be kept out of the way, the RTX that different STA can be caused to be sent in different time.The problem of reception is difficult can be brought to AP by being sent when multiple RTX are different.Such as STA1 sends RTX1 on channel A first, STA2 sends RTX2 again on channel B after a period of time, according to standard agreement AP after RTX1 has been received, the interval SIFS times need reply to allow to operate frame, but now RTX2 is also to receive, and AP does not possess while being transmitted and connecing The function of receipts, therefore cannot be that reply allows to operate frame, and RTX2 is continued to simultaneously.Summarize and be exactly, STA requires to keep out of the way channel whole free time in backoff procedure, the RTX that multiple STA can be ensured is to send simultaneously, ensure that the AP of only either simplex (time can only be transmitted or receive) can smoothly receive multiple STA RTX, and smoothly reply allows to operate frame；

Wherein, the main channel of all channels, either the common factor channel of AP available channel and STA available channel or AP available channel of AP available channel can be included by keeping out of the way channel.

What S203, STA reception AP were sent allows to operate frame, and this allows to operate frame to include information of the AP for the STA channels distributed；

Allow operation frame (Clear To X, abbreviation：CTX) represent to allow some to operate, " X " represents the operation, such as operation is to allow to send frame (English：Clear To Sent, referred to as：CTS), then CTX is CTS, it is necessary to which explanation, the operation is not limited specifically；

Wherein, CTX can be designated as the channel of STA distribution by the centre frequency of each channel；STA and AP can also pre-define the identifier of each channel, and CTX can also be designated as the channel of STA distribution by identifier.

If STA is not received by the CTX of AP transmissions, illustrate that STA is not successfully transmitted RTX, the RTX that the RTX and other STA that such as STA is sent are sent, which is sent, to conflict, and STA only has the RRTX for waiting AP transmissions next time；

Wherein, AP how according to the RTX of reception be STA distribution channel be the skilled addressee will appreciate that, will not be repeated here.

S204, STA send data on the channel of distribution.

STA is when receiving the CTX of AP transmissions, and it is the channel that STA is distributed that can obtain AP, then sends to be sent data cached on this channel；

Wherein, STA may also wait at least one time span when receiving the CTX of AP transmissions, send to be sent data cached on this channel, wherein, the time span includes any one or combination in SIFS, PIFS, DIFS and AIFS.

In the embodiment shown in Figure 2, the available channel that AP is provided includes multiple idle single channels or multiple idle sub-channels, and STA randomly chooses at least one idle single channel or at least one sky in the available channel Not busy subchannel sends RTX, can have every time multiple STA can while feed back RTX, compared with prior art in, can only have every time for a STA feedbacks RTX, improve the efficiency that AP distributes channel for STA, and then, the access efficiency of network is improved, so that, improve data throughout.

Referring to Fig. 3, Fig. 3 is the method flow schematic diagram of another channel access provided in an embodiment of the present invention.The embodiment of the present invention is from the description of AP angles.The method of channel access in the embodiment of the present invention as shown in Figure 3 can include：

S301, AP send inquiry message frame by available channel, and the inquiry message frame includes the first configured information, and first configured information is used for the available channel for indicating AP, and AP available channel includes multiple idle single channels or multiple idle sub-channels.

Specifically, when AP listens to multiple idle single channels or multiple idle sub-channels, AP can send RRTX by least one idle single channel or idle sub-channels, the RRTX is used for the available channel for indicating the AP, it is assumed that agreement provides that the AP can communicate on defined 13 channels, but the AP is listened in this 13 channels, only 3 are idle, and AP can regard 3 channels as available channel；

Wherein, RRTX can indicate available channel by the centre frequency of each channel；STA and AP can also pre-define the identifier of each channel, and RRTX indicates available channel by identifier.

Its single-channel bandwidth can be 20MHz, 30MHz, 80MHz or 160MHz etc., and the embodiment of the present invention is by taking 20MHz as an example；If 20MHz channel is divided into some on frequency domain, each part is a sub-channels, a width of 5MHz of band per sub-channels.

AP available channel can only include multiple idle single channels, multiple idle sub-channels can also be only included, multiple idle single channels and multiple idle sub-channels can also be included simultaneously, AP available channel can be continuous channel, can also be discrete channel, the present invention is not limited；

Alternatively, AP can send RRTX on all idle single channels or the idle sub-channels simultaneously, by taking the available channel listened to, to avoid being taken by other AP；

Wherein, the available channel can be channel reservation, that is to say, that when AP listens to multiple idle channels, first send notification frame and inform that other equipment its idle channel is at the appointed time occupied in section, then, Other equipment was specified at this in period, even if detecting the idle channel, will not also take the idle channel.

Further, AP can also send preset value to STA；Wherein, AP can send the preset value by RRTX, and preset value can also be sent by other message frames, and the present invention is not limited；Wherein, AP just can send the preset value when being adjusted to preset value to STA, can also, just sent when sending RRTX to STA every time.

S302, AP receive the RTX of at least one STA transmissions, and each RTX includes the second configured information, and second configured information is used for the available channel for indicating STA.

Second configured information is used to indicate the available channel that its STA is listened to, and can indicate available channel by the centre frequency of each channel；STA and AP pre-define the identifier of each channel, can also indicate available channel by identifier.

S303, AP are that corresponding STA distributes channel according to the RTX of reception.

Specifically, when AP receives the RTX of at least one STA transmissions, the second configured information that AP can be carried according to each RTX is corresponding STA distribution channel.

Further, each RTX also includes correspondence STA data cached data message, AP can be each STA distribution channels according to each STA the second configured information and data cached data message, AP is conducive to each RTX data cached transmission for each RTX channels distributed.

S304, AP send CTX to each STA, and the CTX includes the information that AP is the channel that each STA is distributed, so that each STA sends data on the channel of distribution.

Specifically, AP can by any of following three kinds of modes mode to each STA send CTX：

The first, the channel of the RTX by receiving each STA sends CTX to corresponding STA.Refer to Fig. 4, Fig. 4 is a kind of schematic diagram of channel distribution provided in an embodiment of the present invention, as shown in Figure 4, AP available channel includes 3 idle single channels, assuming that being followed successively by from top to bottom, channel 1, channel 2 and channel 4, channel 3 is in busy state, and AP receives STA1 RTX1 by channel 1, STA2 RTX2 is received by channel 2, STA3 RTX3 is received by channel 4, then AP can by channel 1 to STA1 send CTX1, CTX2 is sent to STA2 by channel 2, CTX3 is sent to STA3 by channel 4, each CTX includes the information of the channel for correspondence STA distribution；

Second, AP can be by the channel that is distributed for each STA, and being sent to each STA allows behaviour Make frame；Refer to Fig. 5, Fig. 5 is the schematic diagram of another channel distribution provided in an embodiment of the present invention, as shown in Figure 5, AP available channel includes 3 idle single channels, assuming that being followed successively by from top to bottom, channel 1, channel 2 and channel 4, channel 3 is in busy state, and AP receives STA1 RTX1 by channel 1, STA2 RTX2 is received by channel 2, due to, RTX3 and RTX4 on channel 4 are clashed, AP can not receive the information on channel 4, therefore, AP is only STA1 and STA1 distribution channels, assuming that, AP is that the channel of STA1 distribution is channel 1 and channel 2, it is channel 4 for the STA2 channels distributed, then AP to STA1 can send CTX1 by channel 1 and channel 2, CTX2 is sent to STA2 by channel 4, each CTX includes the information of the channel for correspondence STA distribution；

The third, the available channel that AP passes through AP, in polymerized form CTX is sent to all STA for being successfully transmitted RTX, send identical CTX simultaneously i.e. on each channel of AP available channel, the CTX includes the information for the channel that AP is the STA distribution for being each successfully transmitted RTX, as shown in Figure 5, STA1 and STA2 are the STA for being successfully transmitted RTX, STA3 and STA4 is clashed due to the RTX3 and RTX4 of transmission, therefore, and STA1 and STA2 are not the STA for being successfully transmitted RTX；Specifically, after AP is the STA distribution channels for being each successfully transmitted RTX, AP can generate CTX, and the AP that the CTX is carried is the information of the channel for the STA distribution for being each successfully transmitted RTX, then sends the CTX simultaneously on all channels of AP available channel.

It should be noted that the mode that AP is STA transmissions CTX includes but are not limited to 3 kinds of the above.

In the embodiment shown in fig. 3, AP can provide multiple idle single channels or multiple idle sub-channels for STA, and then, AP can receive multiple STA while feeding back RTX every time, compared with prior art in, for the RTX that a STA feedback can only be received every time, the efficiency that AP distributes channel for STA is improved, and then, improve the access efficiency of network, so as to improve data throughout.

Referring to Fig. 6, Fig. 6 is a kind of STA provided in an embodiment of the present invention structural representation.STA in the embodiment of the present invention as shown in Figure 6 can at least include receiving module 61 and processing module 62, wherein：

Receiving module 61, the RRTX for receiving AP transmissions, RRTX includes the first configured information, and the first configured information is used for the available channel for indicating AP, and AP available channel includes multiple idle single channels or multiple idle sub-channels；

Processing module 62, for selecting at least one idle single channel or at least one idle sub-channels in AP available channel to AP transmissions RTX, the RTX includes the second configured information, and the second configured information is used for the available channel for indicating STA；

Receiving module 61 is additionally operable to：

The CTX that AP is sent is received, CTX includes the information that AP is the channel that STA is distributed；

Processing module 62 is additionally operable to：

Data are sent on the channel of distribution.

Further, STA as shown in Figure 7 can also include intercepting module 63, wherein：

Module 63 is intercepted, for intercepting available channel；

Processing module 62 specifically can be used for：

AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX.

In a kind of optional embodiment, STA as shown in Figure 7 can also further include：Random value generation module 64 and judge module 65, wherein：

Random value generation module 64, for generating a random value；

Judge module 65, for judging whether the random value of generation is less than preset value, selects at least one idle single channel or at least one idle sub-channels to send RTX to AP if so, then triggering the processing module 62 in AP available channel.

Judge module 65 can be also used for：

Judge generation the random value whether be less than preset value, if so, then trigger the processing module 62 AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX.

Further, receiving module 61 can be also used for：

Receive the information for the carrying preset value that AP is sent.

In another optional embodiment, STA as shown in Figure 7 can also further include：Random back number acquisition module 66 and keep out of the way module 67, wherein：

Random back number acquisition module 66, for obtaining a random back number；

Keep out of the way module 67, for the random back number of acquisition to be kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of backoff counter subtracts one, when the numerical value of backoff counter is kept to zero, triggering processing module 62 selects at least one idle single channel or at least one idle sub-channels to send RTX to AP in AP available channel.

Keep out of the way module 67 can be also used for：

The random back number of acquisition is kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of backoff counter subtracts one, when the numerical value of backoff counter is kept to zero, triggering processing module 62 AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX.

Wherein, the whole idle time slots of available channel that every idle time slot includes AP, or, the whole idle time slots of common factor channel of AP available channel and STA available channel, or, the idle time slot of main channel of AP available channel.

Wherein, if the idle time slot of the main channel for the available channel for being AP per an idle time slot, the channel that processing module 62 is selected at least includes at least one subchannel in main channel, or main channel.

Further, processing module 62 can be also used for：

When receiving module 61 receives RRTX, wait at least one time span, at least one idle single channel or at least one idle sub-channels are just selected to send RTX to AP in AP available channel, or, AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX, wherein, time span includes any one in SIFS, PIFS, DIFS and AIFS or combination.

It will be appreciated that the function of the STA of the present embodiment each functional module can be implemented according to the method in above method embodiment, the associated description with reference to Fig. 2 embodiments of the method can be specifically corresponded to, here is omitted.

Referring to Fig. 8, Fig. 8 is another STA provided in an embodiment of the present invention structural representation, as shown in figure 8, the STA can include：At least one processor 81, such as CPU, at least one communication bus 82, wireless signal transceiver 83 and memory 84.Wherein, wireless signal transceiver 83 is used In receiving and transmitting signal, such as RRTX, RTX, CTX；Communication bus 82 is used to realize the connection communication between these components.Memory 84 can be high-speed RAM memory or non-volatile memory (non-volatile memory), for example, at least one magnetic disk storage.Batch processing code is stored in memory 84, and processor 81 is used to call the program code stored in memory 84, for performing following operation：

The RRTX that AP is sent is received by wireless signal transceiver 83, RRTX includes the first configured information, and the first configured information is used for the available channel for indicating AP, and AP available channel includes multiple idle single channels or multiple idle sub-channels；

At least one idle single channel or at least one idle sub-channels are selected to send RTX to the AP in AP available channel, RTX includes the second configured information, and the second configured information is used for the available channel for indicating STA；

The CTX that AP is sent is received, CTX includes the information that AP is the channel that the STA is distributed；

Data are sent on the channel of distribution.

Further, the store code that processor 81 may call upon in memory 84 performs following operate：

Intercept available channel；

Processor 81 calls the store code in memory 84 to select at least one idle single channel or at least one idle sub-channels to be specifically as follows to AP transmissions RTX in AP available channel：

AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX.

In a kind of optional embodiment, the store code that processor 81 may call upon in memory 84 performs following operate：

Generate a random value；

Judge whether the random value of generation is less than preset value；

The step of at least one idle single channel or at least one idle sub-channels are to AP transmission RTX is selected in AP available channel if so, then performing.

In another optional embodiment, the store code that processor 81 may call upon in memory 84 performs following operate：

Generate a random value；

Judge whether the random value of generation is less than preset value；

If so, then perform AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX the step of.

Further, processor 81 calls the store code in memory 84 to judge whether the random value of generation is less than before preset value, can also carry out following operation：

The information for the carrying preset value that AP is sent is received by wireless signal transceiver 83.

In another optional embodiment, the store code that processor 81 may call upon in memory 84 performs following operate：

Obtain a random back number；

The random back number of acquisition is kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

When the numerical value of the backoff counter is kept to zero, then performs and the step of at least one idle single channel or at least one idle sub-channels are to AP transmission RTX is selected in AP available channel.

In another optional embodiment, the store code that processor 81 may call upon in memory 84 performs following operate：

Obtain a random back number；

The random back number of acquisition is kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

When the numerical value of the backoff counter is kept to zero, then perform AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX the step of.

Wherein, the whole idle time slots of available channel that every idle time slot includes AP, or, the whole idle time slots of common factor channel of AP available channel and STA available channel, or, the idle time slot of main channel of AP available channel.

Wherein, if the idle time slot of the main channel for the available channel for being AP per an idle time slot, the channel that processor 81 is selected at least includes at least one subchannel in the main channel, or the main channel.

Further, processor 81 selects at least one idle single channel or at least one idle sub-channels to send RTX to AP in the store code in calling memory 84 in AP available channel, or, AP available channel and STA available channel common factor channel in select at least one idle single channel or at least one idle sub-channels to AP send RTX before, can also carry out following operation：

At least one time span is waited, wherein, the time span includes any one in clearance D IFS and arbitration interframe gap AIFS or combination between short interframe gap SIFS, point interframe gap PIFS, distributed frame.

It will be appreciated that the function of the STA of the present embodiment each functional module can be implemented according to the method in above method embodiment, the associated description with reference to Fig. 2 embodiments of the method can be specifically corresponded to, here is omitted.

Referring to Fig. 9, Fig. 9 is a kind of AP provided in an embodiment of the present invention structural representation.Station AP in the embodiment of the present invention as shown in Figure 9 can at least include sending module 91, receiving module 92 and processing module 93, wherein：

Sending module 91, for sending RRTX by available channel, the RRTX includes the first configured information, and first configured information is used for the available channel for indicating AP, and AP available channel includes multiple idle single channels or multiple idle sub-channels；

Receiving module 92, the RTX for receiving at least one STA transmissions, each RTX includes the second configured information, and second configured information is used for the available channel for indicating STA；

Processing module 93, for being that corresponding STA distributes channel according to the RTX of reception；

Sending module 91 is additionally operable to：

CTX is sent to each STA, the CTX includes the information that AP is the channel that each STA is distributed, so that each STA sends data on the channel of distribution.

Further, each RTX also includes correspondence STA data cached data message, and processing module 92 specifically can be used for：

It is that corresponding STA distributes channel according to the second configured information and data message.

Wherein, sending module 92 specifically can be used for：

Simultaneously RRTX is sent on all channels of available channel.

Wherein, sending module 91 specifically can be used for：

By the channel for the RTX for receiving each STA, CTX is sent to each STA；Or,

By the channel distributed for each STA, CTX is sent to each STA；Or,

By the AP available channel, CTX is sent to all each STA for being successfully transmitted RTX in polymerized form, it is allowed to which operation includes the information for the channel that AP is the STA distribution for being each successfully transmitted RTX.

Further, sending module 91 can be also used for：

The information for carrying preset value is sent by AP available channel.

It will be appreciated that the function of the AP of the present embodiment each functional module can be implemented according to the method in above method embodiment, the associated description with reference to Fig. 3 embodiments of the method can be specifically corresponded to, here is omitted.

Referring to Fig. 10, Figure 10 is another AP provided in an embodiment of the present invention structural representation, as shown in Figure 10, the AP can include：At least one processor 101, such as CPU, at least one communication bus 102, wireless signal transceiver 103 and memory 104.Wherein, wireless signal transceiver 103 is used for receiving and transmitting signal, such as RRTX, RTX, CTX；Communication bus 102 is used to realize the connection communication between these components.Memory 104 can be high-speed RAM memory or non-volatile memory (non-volatile memory), for example, at least one magnetic disk storage.Batch processing code is stored in memory 104, and processor 101 is used to call the program code stored in memory 104, for performing following operation：

RRTX is sent by available channel, RRTX includes the first configured information, and the first configured information is used for the available channel for indicating AP, and AP available channel includes multiple idle single channels or multiple idle sub-channels；

103 are received and dispatched by the wireless signal and receives the RTX that at least one STA is sent, and each RTX includes the second configured information, and second configured information is used for the available channel for indicating STA；

It is that corresponding STA distributes channel according to the RTX of reception；

CTX is sent to each STA by the wireless signal transceiver 103, CTX includes the information that AP is the channel that each STA is distributed, so that each STA sends data on the channel of distribution.

Each RTX also includes correspondence STA data cached data message, and processor 101 calls the store code in memory 104 to be that corresponding STA distribution channels are specifically as follows according to the RTX of reception：

It is that corresponding STA distributes channel according to the second configured information and data message.

Processor 101 calls the store code in memory 104 to be specifically as follows by available channel transmission RRTX：

Simultaneously RRTX is sent on all channels of available channel.

Wherein, processor 101 sends CTX to each STA by wireless signal transceiver 103 and is specifically as follows：

By the channel for the RTX for receiving each STA, CTX is sent to each STA；Or,

By the channel distributed for each STA, CTX is sent to each STA；Or,

By the AP available channel, CTX is sent to all each STA for being successfully transmitted RTX in polymerized form, this allows operation to include the information for the channel that AP is the STA distribution for being each successfully transmitted RTX.

Further, the store code that processor 101 may call upon in memory 104 performs following operate：

The information for carrying preset value is sent by AP available channel.

It will be appreciated that the function of the AP of the present embodiment each functional module can be implemented according to the method in above method embodiment, the associated description with reference to Fig. 3 embodiments of the method can be specifically corresponded to, here is omitted.

Figure 11 is referred to, Figure 11 is a kind of system structure diagram of channel access provided in an embodiment of the present invention.The system of channel access provided in an embodiment of the present invention includes AP and at least one STA；Wherein, the N in Figure 11 represents STA number, N round numbers.STA refers to the corresponding embodiments of Fig. 6 to Fig. 8, and AP refers to the corresponding embodiments of Fig. 9 and Figure 10, will not be repeated here.

The embodiment of the present invention also proposed a kind of computer-readable storage medium, and the computer-readable storage medium has program stored therein, including the part or all of step in method described in conjunction with Figure 2 of the embodiment of the present invention when described program is performed.

The embodiment of the present invention also proposed a kind of computer-readable storage medium, and the computer-readable storage medium has program stored therein, including the part or all of step in method described in conjunction with Figure 3 of the embodiment of the present invention when described program is performed.

Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.

Module in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.

In the description of this specification, the description of reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " etc. means to combine specific features, structure or the feature that the embodiment or example describe and is contained at least one embodiment of the present invention or example.In this manual, the schematic representation of above-mentioned term is not required to be directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can in an appropriate manner be combined in any one or more embodiments or example.In addition, in the case of not conflicting, the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification can be combined and combined by those skilled in the art.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise specifically defined.

Any process described otherwise above or method description are construed as in flow chart or herein, represent to include module, fragment or the part of the code of one or more executable instructions for the step of realizing specific logical function or process, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by order that is shown or discussing, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be understood by embodiments of the invention person of ordinary skill in the field.

Represent in flow charts or logic and/or step described otherwise above herein, for example, it is considered the program listing of the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, so that instruction execution system, device or equipment (such as computer based system including the system of processor or other can be from instruction execution system, device or equipment instruction fetch and the system of execute instruction) use, or combine these instruction execution systems, device or equipment and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicating, propagating or transmission procedure for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and the device used.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electrical connection section (electronic installation) with one or more wirings, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium, which can even is that, to print the paper or other suitable media of described program thereon, because can be for example by carrying out optical scanner to paper or other media, then enter edlin, interpret or handled electronically to obtain described program with other suitable methods if necessary, be then stored in computer storage.

It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.In the above-described embodiment, multiple steps or method can be performed in memory and by suitable instruction execution system with storage software or firmware is realized.If for example, being realized with hardware, with another embodiment, can be realized with any one of following technology well known in the art or their combination：Discrete logic with the logic gates for realizing logic function to data-signal, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize that all or part of step that above-described embodiment method is carried can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable recording medium, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each of the invention embodiment can be integrated in a processing module or unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated module can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.If the integrated module is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..Although having shown above Go out and describe embodiments of the invention, it is appreciated that, above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, and one of ordinary skill in the art can be changed to above-described embodiment, change, replacing and modification within the scope of the invention.

Claims (35)

1. A kind of method of channel access, it is characterised in that methods described includes：

   Site apparatus receives the inquiry message frame that access point apparatus is sent, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

   The site apparatus selects at least one described idle single channel or at least one described idle sub-channels to send request operation frame to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

   What the site apparatus reception described access point equipment was sent allows to operate frame, described to allow to operate frame to include the information for the channel that described access point equipment is distributed for the site apparatus；

   The site apparatus sends data on the channel of the distribution.
2. The method as described in claim 1, it is characterised in that methods described also includes：

   The site apparatus intercepts available channel；

   The site apparatus selects at least one described idle single channel or at least one described idle sub-channels to send request operation frame to described access point equipment in the available channel of described access point equipment to be included：

   The site apparatus described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.
3. The method as described in claim 1, it is characterised in that methods described also includes：

   The site apparatus generates a random value；

   The site apparatus judges whether the random value of generation is less than preset value；

   If so, the site apparatus then perform it is described selected in the available channel of described access point equipment at least one described idle single channel or at least one described idle sub-channels to described access point equipment send request operation frame the step of.
4. Method as claimed in claim 2, it is characterised in that methods described also includes：

   The site apparatus generates a random value；

   The site apparatus judges whether the random value of generation is less than preset value；

   At least one described idle single channel or at least one described idle sub-channels are selected to send the step of request operates frame to described access point equipment in the common factor channel of the available channel of the available channel in described access point equipment and the site apparatus if so, the site apparatus is then performed.
5. Method as described in claim any one of 3-4, it is characterised in that the site apparatus judges whether the random value of generation is less than before preset value, in addition to：

   The site apparatus receives the information for the carrying preset value that described access point equipment is sent.
6. The method as described in claim 1, it is characterised in that methods described also includes：

   The site apparatus obtains a random back number；

   The site apparatus is kept out of the way the random back number of acquisition as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

   When the numerical value of the backoff counter is kept to zero, the site apparatus then perform it is described selected in the available channel of described access point equipment at least one described idle single channel or at least one described idle sub-channels to described access point equipment send request operation frame the step of.
7. Method as claimed in claim 2, it is characterised in that methods described also includes：

   The site apparatus obtains a random back number；

   The site apparatus is kept out of the way the random back number of acquisition as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one；

   When the numerical value of the backoff counter is kept to zero, the site apparatus, which is then performed, selects at least one described idle single channel or at least one described idle sub-channels to send the step of request operates frame to described access point equipment in the common factor channel of the available channel of the available channel in described access point equipment and the site apparatus.
8. Method as described in claim any one of 6-7, it is characterised in that when described every idle one Gap includes the whole idle time slots of available channel of described access point equipment, or, the whole idle time slots of the common factor channel of the available channel of the available channel of described access point equipment and the site apparatus, or, the idle time slot of main channel of the available channel of described access point equipment.
9. Method as described in claim any one of 6-7, it is characterized in that, if the idle time slot of main channel per an idle time slot for the available channel of described access point equipment, then the channel of the site apparatus selection at least includes at least one subchannel in the main channel, or the main channel.
10. Method as described in claim any one of 1-9, it is characterized in that, the site apparatus selects at least one described idle single channel or at least one described idle sub-channels to be sent to described access point equipment before asking operation frame in the available channel of described access point equipment, and methods described also includes：

    The site apparatus waits at least one time span, wherein, the time span includes any one in clearance D IFS and arbitration interframe gap AIFS or combination between short interframe gap SIFS, point interframe gap PIFS, distributed frame.
11. A kind of method of channel access, it is characterised in that methods described includes：

    Access point apparatus sends inquiry message frame by available channel, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

    Described access point equipment receives the request operation frame of at least one site apparatus transmission, and each request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

    Described access point equipment operates frame to be that corresponding site apparatus distributes channel according to the request of reception；

    Described access point equipment is sent to site apparatus each described to be allowed to operate frame, it is described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.
12. Method as claimed in claim 11, it is characterised in that each request operation frame also includes the data cached data message of correspondence site apparatus, described access point equipment is according to the request of reception Operation frame is that corresponding site apparatus distribution channel includes：

    Described access point equipment is that corresponding site apparatus distributes channel according to second configured information and the data message.
13. Method as described in claim any one of 11-12, it is characterised in that described access point equipment sends inquiry message frame by available channel to be included：

    Described access point equipment sends the inquiry message frame on all channels of the available channel simultaneously.
14. Method as described in claim any one of 11-13, it is characterised in that described access point equipment is sent to site apparatus each described allows operation frame to include：

    The request of the described access point equipment by receiving each site apparatus operates the channel of frame, and being sent to site apparatus each described allows to operate frame；Or,

    Described access point equipment is by the channel distributed for site apparatus each described, and being sent to site apparatus each described allows to operate frame；Or,

    The available channel that described access point equipment passes through described access point equipment, being sent in polymerized form to all each site apparatus for being successfully transmitted request operation frame allows to operate frame, the information for allowing operation to include the channel that described access point equipment is the site apparatus distribution for being each successfully transmitted request operation frame.
15. Method as described in claim any one of 11-14, it is characterised in that methods described also includes：

    Described access point equipment sends the information for carrying preset value by the available channel of described access point equipment.
16. A kind of site apparatus, it is characterised in that the site apparatus includes：

    Receiving module, inquiry message frame for receiving access point apparatus transmission, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

    Processing module, frame is operated for selecting at least one described idle single channel or at least one described idle sub-channels to send request to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

    The receiving module is additionally operable to：

    Receive the transmission of described access point equipment allows operation frame, the information for allowing operation frame to include the channel that described access point equipment is site apparatus distribution；

    The processing module is additionally operable to：

    Data are sent on the channel of the distribution.
17. Site apparatus as claimed in claim 16, it is characterised in that the site apparatus also includes：

    Module is intercepted, for intercepting available channel；

    The processing module specifically for：

    Described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.
18. Site apparatus as claimed in claim 16, it is characterised in that the site apparatus also includes：

    Random value generation module, for generating a random value；

    Judge module, for judging whether the random value of generation is less than preset value, at least one described idle single channel or at least one described idle sub-channels are selected to send request operation frame to described access point equipment in the available channel of described access point equipment if so, then triggering the processing module.
19. Site apparatus as claimed in claim 17, it is characterised in that the site apparatus also includes：

    Random value generation module, for generating a random value；

    Judge module, for judging whether the random value of generation is less than preset value, if so, then trigger the processing module described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to described access point equipment send it is described request operation frame.
20. Site apparatus as described in claim any one of 18-19, it is characterised in that the receiving module is additionally operable to：

    Receive the information for the carrying preset value that described access point equipment is sent.
21. Site apparatus as claimed in claim 16, it is characterised in that the site apparatus also includes：

    Random back number acquisition module, for obtaining a random back number；

    Keep out of the way module, for the random back number of acquisition to be kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one, when the numerical value of the backoff counter is kept to zero, triggers the processing module and select at least one described idle single channel or at least one described idle sub-channels to send request operation frame to described access point equipment in the available channel of described access point equipment.
22. Site apparatus as claimed in claim 17, it is characterised in that the site apparatus also includes：

    Random back numerical value acquisition module, for obtaining a random back number；

    Keep out of the way module, for the random back number of acquisition to be kept out of the way as the initial value of backoff counter, wherein, per one time slot of free time, the numerical value of the backoff counter subtracts one, when the numerical value of the backoff counter is kept to zero, trigger the processing module described access point equipment available channel and the site apparatus available channel common factor channel in select at least one described idle single channel or at least one described idle sub-channels to send the request operation frame to described access point equipment.
23. Site apparatus as described in claim any one of 21-22, it is characterized in that, the whole idle time slots of the available channel for including described access point equipment per an idle time slot, or, the whole idle time slots of the common factor channel of the available channel of the available channel of described access point equipment and the site apparatus, or, the idle time slot of main channel of the available channel of described access point equipment.
24. Site apparatus as described in claim any one of 21-22, it is characterized in that, if the idle time slot of main channel per an idle time slot for the available channel of described access point equipment, then the channel of the processing module selection at least includes at least one subchannel in the main channel, or the main channel.
25. Site apparatus as described in claim any one of 16-24, it is characterised in that the processing module is additionally operable to：

    When waiting at least one time span, just selected at least in the available channel of described access point equipment One idle single channel or at least one described idle sub-channels send request operation frame to described access point equipment, wherein, the time span includes any one or combination in SIFS, PIFS, DIFS and AIFS.
26. A kind of access point apparatus, it is characterised in that described access point equipment includes：

    Sending module, for sending inquiry message frame by available channel, the inquiry message frame includes the first configured information, and first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

    Receiving module, the request for receiving the transmission of at least one site apparatus operates frame, and each request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

    Processing module, for operating frame to be that corresponding site apparatus distributes channel according to the request of reception；

    The sending module is additionally operable to：

    Being sent to site apparatus each described allows to operate frame, described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.
27. Access point apparatus as claimed in claim 26, it is characterised in that each request operation frame also includes the data cached data message of correspondence site apparatus, the processing module specifically for：

    It is that corresponding site apparatus distributes channel according to second configured information and the data message.
28. Access point apparatus as described in claim any one of 26-27, it is characterised in that the sending module specifically for：

    The inquiry message frame is sent on all channels of the available channel simultaneously.
29. Access point apparatus as described in claim any one of 26-28, it is characterised in that the sending module specifically for：

    The request by receiving each site apparatus operates the channel of frame, and being sent to site apparatus each described allows to operate frame；Or,

    By the channel distributed for site apparatus each described, being sent to site apparatus each described allows to operate frame；Or,

    Pass through the available channel of described access point equipment, being sent in polymerized form to all each site apparatus for being successfully transmitted request operation frame allows to operate frame, the information for allowing operation to include the channel that described access point equipment is the site apparatus distribution for being each successfully transmitted request operation frame.
30. Access point apparatus as described in claim any one of 26-29, it is characterised in that the sending module is additionally operable to：

    The information for carrying preset value is sent by the available channel of described access point equipment.
31. A kind of site apparatus, it is characterised in that the site apparatus includes wireless signal transceiver, memory and processor, wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing following operation：

    The inquiry message frame that access point apparatus is sent is received by the wireless signal transceiver, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

    At least one described idle single channel or at least one described idle sub-channels are selected to send request operation frame to described access point equipment in the available channel of described access point equipment, the request operation frame includes the second configured information, and second configured information is used for the available channel for indicating the site apparatus；

    Receive the transmission of described access point equipment allows operation frame, the information for allowing operation frame to include the channel that described access point equipment is site apparatus distribution；

    Data are sent on the channel of the distribution.
32. A kind of access point apparatus, it is characterised in that described access point equipment includes wireless signal transceiver, memory and processor, wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing following operation：

    Inquiry message frame is sent by available channel, the inquiry message frame includes the first configured information, first configured information is used for the available channel for indicating described access point equipment, and the available channel of described access point equipment includes multiple idle single channels or multiple idle sub-channels；

    The request operation frame that at least one site apparatus is sent is received by the wireless signal transceiver, each request operation frame includes the second configured information, available channel of second configured information for indicating the site apparatus；

    Frame is operated to be that corresponding site apparatus distributes channel according to the request of reception；

    Being sent by the wireless signal transceiver to site apparatus each described allows to operate frame, it is described to allow to operate frame to include the information of channel of the described access point equipment for each site apparatus distribution, so that each described site apparatus sends data on the channel of the distribution.
33. A kind of computer-readable storage medium, it is characterised in that the computer-readable storage medium has program stored therein, including the step described in claim any one of 1-10 when described program is performed.
34. A kind of computer-readable storage medium, it is characterised in that the computer-readable storage medium has program stored therein, including the step described in claim any one of 11-15 when described program is performed.
35. A kind of system of channel access, it is characterised in that the system includes access point apparatus and at least one site apparatus, wherein：

    The site apparatus is the site apparatus as described in claim any one of 16-25；

    Described access point equipment is the access point apparatus as described in claim any one of 26-30.