CN103428815A

CN103428815A - Access method, device and system of wireless local area network

Info

Publication number: CN103428815A
Application number: CN2012101539852A
Authority: CN
Inventors: 姜艳平; 甄斌; 赵牧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2013-12-04
Anticipated expiration: 2032-05-17
Also published as: CN103428815B

Abstract

The invention discloses an access method, device and system of wireless local area network (WLAN), and relates to the technical field of communication. The access method, device and system of the WLAN solves the problem that power consumption is increased when a high power consumption terminal and a low power consumption terminal access the WLAN to work at the same time. The method comprises the steps that an access point acquires the terminal type of a terminal in the WLAN, a first parameter of the terminal is determined according to the terminal type, the first parameter is broadcasted to enable the terminal to generate a second parameter, the fact that whether the terminal can access the channel of the WLAN in a competition mode is judged according to comparison results of the second parameter and the first parameter, or the access point receives request messages sent by the terminal, the second parameter is generated according to the request messages, the fact that whether the terminal can access the channel of the WLAN in a competition mode is judged according to the comparison results of the second parameter and the first parameter, and feedback messages corresponding to the request messages are sent to the terminal to indicate whether the terminal can access the channel of the WLAN in the competition mode. The access method, device and system of the WLAN is suitable for WLANs.

Description

The cut-in method of WLAN (wireless local area network), Apparatus and system

Technical field

The present invention relates to communication technical field, relate in particular to a kind of cut-in method, Apparatus and system of WLAN (wireless local area network).

Background technology

WLAN (wireless local area network) (Wireless Local Area Network is called for short WLAN) is a kind of data transmission system easily, and it utilizes radio frequency (Radio Frequency is called for short RF) technology, has replaced the LAN that copper twisted pairs forms.The WLAN technology now has been widely used in the places such as family, campus, hotel and enterprise's office.The WLAN technology can provide the access service of high-rate wireless wideband data (for example to be applied to the cellular network data service distributing, when the user arrives have WLAN to cover regional, can apply wlan network and carry out data service), the power consumption of high-rate wireless wideband data access service is relatively high, therefore corresponding broadband wireless data access terminal (such as smart mobile phone, notebook computer etc.) belong to high power consumption terminal.In addition, the WLAN technology can also provide the sensor application service of low rate, such as intelligent meter data recording, medical facilities, environmental monitoring and household automation etc., the power consumption of the sensor application service of low rate is relatively low, and therefore corresponding sensor terminal (such as the terminal be applied in medical facilities and environmental monitoring etc.) belongs to the low-power consumption terminal.Under current techniques, described low-power consumption terminal and described high power consumption terminal can be linked in described wlan network simultaneously carries out work.

In realizing the process of the embodiment of the present invention, the inventor finds that in prior art, at least there are the following problems:

While in described high power consumption terminal and described low-power consumption terminal access described wlan network simultaneously, carrying out work, because the transmitting power of low-power consumption terminal is lower, with respect to described high power consumption terminal, it is concealed nodes, described low-power consumption terminal challenge is low to the high power consumption terminal of likelihood ratio of channel, cause the packet of described low-power consumption terminal repeatedly to collide and the low-power consumption terminal can be intercepted described channel repeatedly, thereby increased power consumption.

Summary of the invention

Embodiments of the invention provide a kind of cut-in method, Apparatus and system of WLAN (wireless local area network), while in high power consumption terminal and low-power consumption terminal while accessing WLAN, carrying out work, and the problem that can cause power consumption to increase.

The present invention adopts following technical scheme:

A kind of cut-in method of WLAN (wireless local area network) comprises:

Access point obtains the terminal type of terminal in WLAN (wireless local area network);

Described access point is determined the first parameter of described terminal according to described terminal type;

Described access point is broadcasted described the first parameter, described the first parameter is for making described terminal receive after described the first parameter to generate the second parameter and according to the comparative result of described the second parameter and described the first parameter, judges the channel that can described terminal the described WLAN (wireless local area network) of contention access; Perhaps described access point receives the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

A kind of cut-in method of WLAN (wireless local area network) comprises:

Terminal sends to access point by the terminal type of self, so that described access point is determined the first parameter of described terminal according to described terminal type;

Terminal receives described first parameter of described access point broadcast, generates the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel; Perhaps described terminal sends a request message to described access point, so that described access point is according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, receive the feedback message corresponding with described request message that described access point sends, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

A kind of access point of WLAN (wireless local area network) comprises:

The first acquiring unit, for obtaining the terminal type of WLAN (wireless local area network) terminal;

The first dispensing unit, for determining the first parameter of described terminal according to described terminal type;

The first radio unit, for broadcasting described the first parameter;

The first Transmit-Receive Unit, the request message sent for receiving described terminal, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

A kind of terminal comprises:

The information reporting unit, send to access point for the terminal type by self, so that described access point is determined the first parameter of described terminal according to described terminal type;

Receive judging unit, for receiving described first parameter of described access point broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel;

The second Transmit-Receive Unit, for sending a request message to described access point, so that described access point is according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, receive the feedback message corresponding with described request message that described access point sends, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

A kind of connecting system of WLAN (wireless local area network), comprise an access point and a plurality of terminal, wherein,

Described access point, for obtaining the terminal type of WLAN (wireless local area network) terminal, determine the first parameter of described terminal according to described terminal type, and broadcast described the first parameter, perhaps receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access,

Described terminal, for the terminal type of self is sent to described access point, and receive described first parameter of described access point broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel, perhaps to described access point, send a request message, and receiving the feedback message corresponding with described request message that described access point sends, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

The cut-in method of the WLAN (wireless local area network) that the embodiment of the present invention provides, Apparatus and system.Due to access point by having obtained the terminal type of terminal, and determine the first parameter of described terminal according to described terminal type, and broadcast described the first parameter, so that described terminal generates the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access; Perhaps receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

The accompanying drawing explanation

The cut-in method flow chart one of the WLAN (wireless local area network) that Fig. 1 provides for the embodiment of the present invention;

The cut-in method flowchart 2 of the WLAN (wireless local area network) that Fig. 2 provides for the embodiment of the present invention;

The cut-in method flow chart of the WLAN (wireless local area network) that Fig. 3 provides for further embodiment of this invention;

The cut-in method flow chart of the WLAN (wireless local area network) that Fig. 4 provides for another embodiment of the present invention;

The structural representation of the device of the control data transmission that Fig. 5 a provides for the embodiment of the present invention;

The structural representation one of the access point of the WLAN (wireless local area network) that Fig. 5 b provides for the embodiment of the present invention;

The structural representation two of the access point of the WLAN (wireless local area network) that Fig. 6 provides for the embodiment of the present invention;

The structural representation one of the terminal that Fig. 7 provides for the embodiment of the present invention;

The structural representation two of the terminal that Fig. 8 provides for the embodiment of the present invention;

The structural representation of the connecting system of the WLAN (wireless local area network) that Fig. 9 provides for the embodiment of the present invention.

Embodiment

For the advantage that makes technical solution of the present invention is clearer, below in conjunction with drawings and Examples, the present invention is elaborated.

As shown in Figure 1, the cut-in method of the WLAN (wireless local area network) that the embodiment of the present invention provides, the flow process of processing at access point (Access Point is called for short an AP) end comprises:

Step 101, access point obtain the terminal type of terminal in WLAN (wireless local area network).

Wherein, described terminal type can be access terminal (can be by the high power consumption terminal of WiMAX online such as smart mobile phone, notebook computer etc.) or sensor terminal (low-power consumption terminals such as environmental monitoring terminal, medical monitoring terminal) of broadband wireless data, but not only is confined to this.In order further to divide described terminal type, described terminal type can also be divided into such as high power consumption voice terminal, high power consumption video terminal, high power consumption data terminal, low-power consumption voice terminal, low-power-consumption video terminal and low power consumption data terminal etc., but not only is confined to this.

Step 102, described access point are determined the first parameter of described terminal according to described terminal type.Execution step 103 or step 104.

Concrete, because the terminal type of described a plurality of terminals can have multiplely, therefore described the first parameter is divided according to described terminal type, and the same terminal type can have the first identical parameter, but not only is confined to this.

Step 103, described access point are broadcasted described the first parameter, so that described terminal receives after described the first parameter and generates the second parameter and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.

Concrete, described the second parameter can be a random number, and described the first parameter can be a random factor, by a strategy set in advance, can judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.For example: described random number is set and produces in digital 1-100, suppose that described random factor is 90, the strategy set in advance described can be if that described random number is less than or equal to described random factor, described terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access, otherwise the authority of the channel of the described WLAN (wireless local area network) of uncontested access, the probability of authority that described like this terminal has the channel of the described WLAN (wireless local area network) of contention access will have 90%, and if described random factor is 10, the probability of authority that described terminal has a channel of the described WLAN (wireless local area network) of contention access only has 10%, visible by described the first parameter of configuration, make described terminal challenge access the probability of channel of described WLAN (wireless local area network) controlled.

Step 104, described access point receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

Concrete, described request message is used to indicate the channel of the described WLAN (wireless local area network) of the described terminal request contention access of access point.The comparison procedure of described the second parameter and described the first parameter can be referring to the specific descriptions in step 103 in Fig. 1, repeat no more herein, what deserves to be explained is, comparison procedure in described step 103 is carried out by described terminal, and the comparison procedure in described step 104 is carried out by described access point.

What deserves to be explained is, the executive agent of each step in Fig. 1 is a kind of access point, can be a kind of wireless router, but not only be confined to this.

As shown in Figure 2, the terminal of take is described as executive agent, the cut-in method of the WLAN (wireless local area network) that the embodiment of the present invention provides, and the handling process of terminal (Station is called for short STA) comprising:

Step 201, terminal send to access point by the terminal type of self, so that described access point is determined the first parameter of described terminal according to described terminal type.Execution step 202 or step 203.

Step 202, described terminal receive described first parameter of described access point broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel.

Step 203, described terminal send a request message to described access point, so that described access point is according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, receive the feedback message corresponding with described request message that described access point sends.

Wherein, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.

The cut-in method of the WLAN (wireless local area network) that the embodiment of the present invention provides.Due to access point by having obtained the terminal type of terminal, and determine the first parameter of described terminal according to described terminal type, and broadcast described the first parameter, so that described terminal generates the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access; Perhaps receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

The cut-in method of the WLAN (wireless local area network) embodiment of the present invention provided below by a concrete example is done more detailed elaboration.

As shown in Figure 3, the cut-in method of the WLAN (wireless local area network) that further embodiment of this invention provides comprises:

Step 301, terminal report access point by the terminal type of self.Execution step 302 or step 303.

If the described terminal type of step 302 is broadband wireless data, access terminal, the first parameter of the described terminal of described access point dynamic-configuration is the first random factor and the first stand-by period.Execution step 304.

If the described terminal type of step 303 is sensor terminal, the first parameter of the described terminal of described access point dynamic-configuration is the second random factor and the second stand-by period.Execution step 304.

Concrete, due to described the first random factor and described the second random factor when getting different value, described terminal challenge accesses the probability difference of the channel of described WLAN (wireless local area network), so described the first random factor, the first stand-by period, the second random factor and the second stand-by period can be carried out dynamic-configuration according to the effect that will reach, described the first stand-by period and described the second stand-by period can periodically send with access point the Periodic correlation of beacon frame, it can be for example the integral multiple in the cycle of described transmission beacon frame, as as described in the first stand-by period or the second stand-by period can be as described in 2 times of cycle of transmission beacon frame, 3 times or larger integral multiple, but not only be confined to this.

Step 304, described access point are periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network).

Wherein, described beacon frame comprises identify label territory, length field and information field, described the first random factor, the first stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, described length field is used to indicate the length scale of described information field, the byte number that for example described information field takies.Execution step 305.

Perhaps, described beacon frame comprises identify label territory, length field and information field, described the second random factor, the second stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, described length field is used to indicate the length scale of described information field, the byte number that for example described information field takies.Execution step 308.

Step 305, described terminal type are that broadband wireless data accesses terminal, and described broadband wireless data accesses terminal after receiving described beacon frame, generate a random number, and compare with the first random factor in described information field.Execution step 306 or step 307.

Concrete, by a strategy set in advance, can judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.For example: described random number is set and produces in digital 1-100, suppose that described random factor is 90, the strategy set in advance described can be if that described random number is less than or equal to described random factor, described terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access, otherwise the authority of the channel of the described WLAN (wireless local area network) of uncontested access, the probability of authority that described like this terminal has the channel of the described WLAN (wireless local area network) of contention access will have 90%, and if described random factor is 10, the probability of authority that described terminal has a channel of the described WLAN (wireless local area network) of contention access only has 10%, visible by described the first parameter of configuration, make described terminal challenge access the probability of channel of described WLAN (wireless local area network) controlled.

If the described random number of step 306 is less than or equal to described the first random factor, broadband wireless data accesses terminal and judges the authority of the channel that self has the described WLAN (wireless local area network) of contention access.

If the described random number of step 307 is greater than described the first random factor, the broadband wireless data authority of the channel of judging the described WLAN (wireless local area network) of self uncontested access that accesses terminal, enter resting state, until, after reaching described the first stand-by period, continue to intercept described beacon frame.

Concrete, under resting state, described terminal will can not sent and be received action, and described terminal, by entering resting state, has further reduced power consumption.

Step 308, described terminal type are sensor terminal, and described sensor terminal, after receiving described beacon frame, generates a random number, and compare with the second random factor in described information field.Execution step 309 or step 310.

If the described random number of step 309 is less than or equal to described the second random factor, described sensor terminal is judged the authority of the channel that self has the described WLAN (wireless local area network) of contention access.

If the described random number of step 310 is greater than described the second random factor, described sensor terminal is judged the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enter resting state, until, after reaching described the second stand-by period, continue to intercept described beacon frame.

The cut-in method of the WLAN (wireless local area network) that further embodiment of this invention provides.Owing to having obtained the terminal type of terminal in the WLAN (wireless local area network) by access point, and determine the first parameter of described terminal according to described terminal type, and broadcast described the first parameter, so that described terminal generates the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

As shown in Figure 4, the cut-in method of the WLAN (wireless local area network) that another embodiment of the present invention provides comprises:

Step 401, terminal report access point by the terminal type of self.Execution step 402 or step 403.

If the described terminal type of step 402 is broadband wireless data, access terminal, the first parameter of the described terminal of described access point dynamic-configuration is the first random factor.Perform step successively 404, step 405 and step 407.

If the described terminal type of step 403 is sensor terminal, the first parameter of the described terminal of described access point dynamic-configuration is the second random factor.Perform step successively 404, step 406 and step 408.

Concrete, due to described the first random factor and described the second random factor when getting different value, described terminal challenge accesses the probability difference of the channel of described WLAN (wireless local area network), and therefore described the first random factor, the secondth random factor can carry out dynamic-configuration according to the effect that will reach.

Step 404, need the terminal of the channel of the described WLAN (wireless local area network) of contention access to send a request message to described access point.

Step 405, described access point access terminal after the described request message sent receiving broadband wireless data, generate a random number, and compare with described the first random factor.Execution step 407.

Step 406, described access point, after the described request message that receives the sensor terminal transmission, generate a random number, and compare with described the second random factor.Execution step 408.

If the described random number of step 407 is less than or equal to described the first random factor, described access point is judged the access terminal authority of channel with the described WLAN (wireless local area network) of contention access of described broadband wireless data.Execution step 409.

If the described random number of step 408 is less than or equal to described the second random factor, described access point judges that described sensor terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access.Execution step 409.

Step 409, access point send the feedback message corresponding with described request message to described terminal.

Wherein, described feedback message can be to send beacon frame by access point to described terminal to realize, described beacon frame comprises identify label territory, length field and information field, described feedback message is stored in described information field, described identify label territory is used to indicate the information content of described information field, described length field is used to indicate the length scale of described information field, the byte number that for example described information field takies.

If the described feedback message of step 410 indicates described terminal to have the authority of the channel of the described WLAN (wireless local area network) of contention access, described terminal accesses the channel of described WLAN (wireless local area network), to carry out data transmit-receive.

The cut-in method of the WLAN (wireless local area network) that another embodiment of the present invention provides.Due to access point by having obtained the terminal type of terminal in the WLAN (wireless local area network), and determine the first parameter of described terminal according to described terminal type, receive the request message that described terminal sends, according to described request message generation the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

Front is described the embodiment of the method according to the embodiment of the present invention in detail, below, describe the device according to the control data transmission of the embodiment of the present invention in detail.Concrete can be a WLAN (wireless local area network), and access point wherein and website are to realize above-mentioned data transmission method.

Consult Fig. 5 a, the embodiment of the present invention further provides the device embodiment that realizes each step and method in said method embodiment.The embodiment of the present invention can be applicable to access point or the website (terminal) of various WLAN (wireless local area network).Fig. 5 a shows a kind of embodiment of equipment, and in this embodiment, equipment 50 comprises radiating circuit 502, receiving circuit 503, power controller 504, decoding processor 505, processing unit 506, memory 507 and antenna 501.The operation of processing unit 506 control appliances 50, processing unit 506 can also be called central processing unit (Central Processing Unit is called for short CPU).Memory 507 can comprise read-only memory and random access memory, and provides instruction and data to processing unit 506.The part of memory 507 can also comprise non-volatile row random access memory (Non-Volatile Random Access Memory is called for short NVRAM).In concrete application, equipment 50 can embed or itself can be exactly the Wireless Telecom Equipment of mobile phone and so on for example, can also comprise the carrier that holds radiating circuit 502 and receiving circuit 503, to carry out data transmission and reception between permission equipment 50 and remote location.Radiating circuit 502 and receiving circuit 503 can be coupled to antenna 501.Each assembly of equipment 50 is coupled by bus system 5100, and wherein said bus system 5100, except comprising data/address bus, also comprises power bus, control bus and status signal bus in addition.But see from tomorrow for clear, in the drawings various buses all are designated as to bus system 5100.Equipment 50 can also comprise processing unit 506 for the treatment of signal, comprise power controller 504, decoding processor 505 in addition.In concrete different product, decoder 505 may become one with processing unit 506.

Disclosed each step and the logic diagram in the inventive method embodiment can be realized or carry out to processor.General processor can be that microprocessor or this processor can be also the processors of any routine, decoder etc.Step in conjunction with the disclosed method of the embodiment of the present invention can directly be presented as that hardware processor is complete, or complete with the hardware in decoding processor and software module combination.Software module can be positioned at random asccess memory, and flash memory, read-only memory, in the storage medium of this area maturations such as programmable read only memory or electrically erasable programmable memory, register.This storage medium is positioned at memory 507, and the information in decoding unit or processing unit read memory 507 completes the step of said method in conjunction with its hardware.

As shown in Figure 5 b, the access point of the WLAN (wireless local area network) that the embodiment of the present invention provides comprises:

The first acquiring unit 61, for obtaining the terminal type of WLAN (wireless local area network) terminal.Its specific implementation, referring in Fig. 1 shown in step 101, repeats no more herein.

The first dispensing unit 62, for determining the first parameter of described terminal according to described terminal type.Its specific implementation, referring in Fig. 1 shown in step 102, repeats no more herein.

The first radio unit 63, for broadcasting described the first parameter.Its specific implementation, referring in Fig. 1 shown in step 103, repeats no more herein.

The first Transmit-Receive Unit 64, the request message sent for receiving described terminal, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.Its specific implementation, referring in Fig. 1 shown in step 104, repeats no more herein.

Wherein the first acquiring unit 61, the first dispensing unit 62 and the first Transmit-Receive Unit 64 can be respectively processing units 506 or be integrated in a processing unit 506.The first radio unit 63 can be a radiating circuit 502 or a part wherein.Wherein the part of above-mentioned each unit transmitting-receiving has all coordinated by receiving circuit and radiating circuit.

Further, as shown in Figure 6, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor and the first stand-by period, described the first dispensing unit 62, specifically for:

The first parameter that the described broadband wireless data of dynamic-configuration accesses terminal is the first random factor and the first stand-by period.Its specific implementation, referring in Fig. 3 shown in step 302, repeats no more herein.

Further, as shown in Figure 6, described the first radio unit 63, specifically for:

Periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the first random factor, the first stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.Its specific implementation, referring in Fig. 3 shown in step 304, repeats no more herein.

Further, as shown in Figure 6, described terminal type is sensor terminal, and described the first parameter comprises the second random factor and the second stand-by period, described the first dispensing unit 62, specifically for:

The first parameter of the described sensor terminal of dynamic-configuration is the second random factor and the second stand-by period.Its specific implementation, referring in Fig. 3 shown in step 303, repeats no more herein.

Described the first radio unit 63, specifically for:

Periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the second random factor, the second stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.Its specific implementation, referring in Fig. 3 shown in step 304, repeats no more herein.

Further, as shown in Figure 6, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor, and described the second parameter is a random number, described the first dispensing unit 62, specifically for:

The first parameter that the described broadband wireless data of dynamic-configuration accesses terminal is the first random factor.Its specific implementation, referring in Fig. 4 shown in step 402, repeats no more herein.

Further, as shown in Figure 6, described the first Transmit-Receive Unit 64 comprises:

The first comparison module 641, for accessing terminal after the described request message sent receiving broadband wireless data, generate a random number, and compare with described broadband wireless data the first corresponding random factor that accesses terminal.Its specific implementation, referring in Fig. 4 shown in step 405, repeats no more herein.

The first determination module 642, if be less than or equal to described the first random factor for described random number, judge the access terminal authority of channel with the described WLAN (wireless local area network) of contention access of described broadband wireless data.Its specific implementation, referring in Fig. 4 shown in step 407, repeats no more herein.

The first sending module 643, send the feedback message corresponding with described request message, the channel of the described WLAN (wireless local area network) of contention access so that described broadband wireless data accesses terminal for accessing terminal to described broadband wireless data.Its specific implementation, referring in Fig. 4 shown in step 409, repeats no more herein.

Further, as shown in Figure 6, described terminal type is sensor terminal, and described the first parameter comprises the second random factor, and described the second parameter is a random number, described the first dispensing unit 62, specifically for:

The first parameter of the described sensor terminal of dynamic-configuration is the second random factor.Its specific implementation, referring in Fig. 4 shown in step 403, repeats no more herein.

Described the first Transmit-Receive Unit 64 comprises:

The second comparison module 644, after the described request message receiving the sensor terminal transmission, generate a random number, and second random factor corresponding with described sensor terminal compares.Its specific implementation, referring in Fig. 4 shown in step 406, repeats no more herein.

The second determination module 645, if be less than or equal to described the second random factor for described random number, judge that described sensor terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access.Its specific implementation, referring in Fig. 4 shown in step 408, repeats no more herein.

The second sending module 646, for to described sensor terminal, sending the feedback message corresponding with described request message, so that the channel of the described WLAN (wireless local area network) of described sensor terminal contention access.Its specific implementation, referring in Fig. 4 shown in step 409, repeats no more herein.

The access point of the WLAN (wireless local area network) that the embodiment of the present invention provides.Due to access point by having obtained the terminal type of terminal, and determine the first parameter of described terminal according to described terminal type, and broadcast described the first parameter, so that described terminal generates the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access; Perhaps receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

As shown in Figure 7, the terminal that the embodiment of the present invention provides comprises:

Information reporting unit 71, send to access point for the terminal type by self, so that described access point is determined the first parameter of described terminal according to described terminal type.Its specific implementation, referring in Fig. 2 shown in step 201, repeats no more herein.

Receive judging unit 72, for receiving described first parameter of described access point broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel.Its specific implementation, referring in Fig. 2 shown in step 202, repeats no more herein.

The second Transmit-Receive Unit 73, for sending a request message to described access point, so that described access point is according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, receive the feedback message corresponding with described request message that described access point sends, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.Its specific implementation, referring in Fig. 2 shown in step 203, repeats no more herein.

In concrete terminal equipment form, information reporting unit 71, the second Transmit-Receive Unit 73 can be respectively the parts of radiating circuit 502 or radiating circuit 502, and receiving judging unit 72 can be the part of receiving circuit 503 or receiving circuit 503.

Further, as shown in Figure 8, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor and the first stand-by period, and described the second parameter is a random number, described reception judging unit 72, specifically for:

Receive the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the first random factor and the first stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.Its specific implementation, referring in Fig. 3 shown in step 304, repeats no more herein.

Further, as shown in Figure 8, described reception judging unit 72 comprises:

The 3rd comparison module 721, for generating a random number, and compare with the first random factor in described information field.Its specific implementation, referring in Fig. 3 shown in step 305, repeats no more herein.

The 3rd determination module 722, if be less than or equal to described the first random factor for described random number, judge the authority of the channel that self has the described WLAN (wireless local area network) of contention access.Its specific implementation, referring in Fig. 3 shown in step 306, repeats no more herein.

The 4th determination module 723, if be greater than described the first random factor for described random number, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enter resting state, until, after reaching described the first stand-by period, continue to intercept described beacon frame.Its specific implementation, referring in Fig. 3 shown in step 307, repeats no more herein.

Further, as shown in Figure 8, described terminal type is sensor terminal, and described the first parameter comprises the second random factor and the second stand-by period, and described the second parameter is a random number, described reception judging unit 72, specifically for:

Receive the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the second random factor and the second stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.Its specific implementation, referring in Fig. 3 shown in step 304, repeats no more herein.

Further, as shown in Figure 8, described reception judging unit 72 comprises:

The 4th comparison module 724, for generating a random number, and compare with the second random factor in described information field.Its specific implementation, referring in Fig. 3 shown in step 308, repeats no more herein.

The 5th determination module 725, if be less than or equal to described the second random factor for described random number, judge the authority of the channel that self has the described WLAN (wireless local area network) of contention access.Its specific implementation, referring in Fig. 3 shown in step 309, repeats no more herein.

The 6th determination module 726, if be greater than described the second random factor for described random number, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enter resting state, until, after reaching described the second stand-by period, continue to intercept described beacon frame.Its specific implementation, referring in Fig. 3 shown in step 310, repeats no more herein.

Further, as shown in Figure 8, described terminal also comprises:

Channel access unit 74, if indicate described terminal to have the authority of the channel of the described WLAN (wireless local area network) of contention access for the feedback message received, access the channel of described WLAN (wireless local area network), to carry out data transmit-receive.Its specific implementation, referring in Fig. 4 shown in step 410, repeats no more herein.

The terminal that the embodiment of the present invention provides, because the terminal type by by self reports access point, so that described access point is determined the first parameter of described terminal according to described terminal type; Receive described first parameter of described access point broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel; Perhaps to described access point, send a request message, so that described access point is according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, receive the feedback message corresponding with described request message that described access point sends, described feedback message is used to indicate the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

As shown in Figure 9, the connecting system of the WLAN (wireless local area network) that the embodiment of the present invention provides, comprise an access point 81 and a plurality of terminal 82, wherein,

Described access point 81, for obtaining the terminal type of WLAN (wireless local area network) terminal 82, and determine the first parameter of described terminal 82 according to described terminal type, and broadcast described the first parameter, perhaps receive the request message that described terminal 82 sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal 82 the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal 82, to indicate the channel that can described terminal 82 the described WLAN (wireless local area network) of contention access.

Described terminal 82, for the terminal type of self is sent to described access point 81, and receive described first parameter of described access point 81 broadcast, generate the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel, perhaps to described access point 81, send a request message, and receiving the feedback message corresponding with described request message that described access point 81 sends, described feedback message is used to indicate the channel that can described terminal 82 the described WLAN (wireless local area network) of contention access.

Its specific implementation, referring to the specific embodiment of above-mentioned access point and terminal, repeats no more herein.What deserves to be explained is, described access point can be a kind of wireless router with access point, described terminal can be access terminal (can be by the high power consumption terminal of WiMAX online such as smart mobile phone, notebook computer etc.) or sensor terminal (low-power consumption terminals such as environmental monitoring terminal, medical monitoring terminal) of broadband wireless data, but not only is confined to this.

The connecting system of the WLAN (wireless local area network) that the embodiment of the present invention provides.Due to access point by having obtained the terminal type of terminal, and determine the first parameter of described terminal according to described terminal type, broadcast described the first parameter, so that described terminal generates the second parameter, and, according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access; Perhaps receive the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access.Comparison by described the second parameter and described the first parameter, make the probability difference of the channel of the described WLAN (wireless local area network) of different terminals type contention access, thereby reduced a large amount of high power consumption terminals and a large amount of low-power consumption terminals probability of the channel of the described WLAN (wireless local area network) of contention access simultaneously, and then reduced power consumption.

Claims

1. the cut-in method of a WLAN (wireless local area network), is characterized in that, comprising:

2. method according to claim 1, it is characterized in that, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor and the first stand-by period, described access point is determined the first parameter of described terminal according to described terminal type, comprising:

The first parameter that the described broadband wireless data of described access point dynamic-configuration accesses terminal is the first random factor and the first stand-by period;

Described access point is broadcasted described the first parameter, comprising:

Described access point is periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the first random factor, the first stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.

3. method according to claim 1, it is characterized in that, described terminal type is sensor terminal, and described the first parameter comprises the second random factor and the second stand-by period, described access point is determined the first parameter of described terminal according to described terminal type, comprising:

The first parameter of the described sensor terminal of described access point dynamic-configuration is the second random factor and the second stand-by period;

Described access point is periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the second random factor, the second stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.

4. method according to claim 1, it is characterized in that, described terminal type is that broadband wireless data accesses terminal, described the first parameter comprises the first random factor, described the second parameter is a random number, described access point is determined the first parameter of described terminal according to described terminal type, comprising:

The first parameter that the described broadband wireless data of described access point dynamic-configuration accesses terminal is the first random factor;

Described access point receives the request message that described terminal sends, according to described request message generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge the channel that can described terminal the described WLAN (wireless local area network) of contention access, send the feedback message corresponding with described request message to described terminal, comprising:

Access terminal after the described request message sent receiving broadband wireless data, generate a random number, and compare with described broadband wireless data the first corresponding random factor that accesses terminal;

If described random number is less than or equal to described the first random factor, judge the access terminal authority of channel with the described WLAN (wireless local area network) of contention access of described broadband wireless data;

Access terminal and send the feedback message corresponding with described request message, the channel of the described WLAN (wireless local area network) of contention access so that described broadband wireless data accesses terminal to described broadband wireless data.

5. method according to claim 1, is characterized in that, described terminal type is sensor terminal, described the first parameter comprises the second random factor, described the second parameter is a random number, and described access point is determined the first parameter of described terminal according to described terminal type, comprising:

The first parameter of the described sensor terminal of described access point dynamic-configuration is the second random factor;

After the described request message that receives the sensor terminal transmission, generate a random number, and second random factor corresponding with described sensor terminal compares;

If described random number is less than or equal to described the second random factor, judge that described sensor terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access;

Send the feedback message corresponding with described request message to described sensor terminal, so that the channel of the described WLAN (wireless local area network) of described sensor terminal contention access.

6. the cut-in method of a WLAN (wireless local area network), is characterized in that, comprising:

7. method according to claim 6, it is characterized in that, described terminal type is that broadband wireless data accesses terminal, described the first parameter comprises the first random factor and the first stand-by period, described the second parameter is a random number, described terminal receives described first parameter of described access point broadcast, comprising:

Described broadband wireless data accesses terminal and receives the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the first random factor and the first stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field;

Described generation the second parameter, and according to the comparative result of described the second parameter and described the first parameter, judge self can the described WLAN (wireless local area network) of contention access channel, comprising:

Broadband wireless data accesses terminal and generates a random number, and compares with the first random factor in described information field;

If described random number is less than or equal to described the first random factor, judge the authority of the channel that self there is the described WLAN (wireless local area network) of contention access;

If described random number is greater than described the first random factor, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enter resting state, until, after reaching described the first stand-by period, continue to intercept described beacon frame.

8. method according to claim 6, is characterized in that, described terminal type is sensor terminal, described the first parameter comprises the second random factor and the second stand-by period, described the second parameter is a random number, and described terminal receives described first parameter of described access point broadcast, comprising:

Sensor terminal receives the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the second random factor and the second stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field;

Sensor terminal generates a random number, and compares with the second random factor in described information field;

If described random number is less than or equal to described the second random factor, judge the authority of the channel that self there is the described WLAN (wireless local area network) of contention access;

If described random number is greater than described the second random factor, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enter resting state, until, after reaching described the second stand-by period, continue to intercept described beacon frame.

9. method according to claim 6, is characterized in that, after the described feedback message corresponding with described request message receiving described access point transmission, comprising:

If the feedback message received indicates described terminal to have the authority of the channel of the described WLAN (wireless local area network) of contention access, access the channel of described WLAN (wireless local area network), to carry out data transmit-receive.

10. the access point of a WLAN (wireless local area network), is characterized in that, comprising:

The first radio unit, for broadcasting described the first parameter;

11. access point according to claim 10, is characterized in that, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor and the first stand-by period, described the first dispensing unit, specifically for:

The first parameter that the described broadband wireless data of dynamic-configuration accesses terminal is the first random factor and the first stand-by period.

12. access point according to claim 10, it is characterized in that, described the first radio unit, specifically for periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the first random factor, the first stand-by period are stored in described information field, and described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.

13. access point according to claim 10, is characterized in that, described terminal type is sensor terminal, and described the first parameter comprises the second random factor and the second stand-by period, described the first dispensing unit, specifically for:

The first parameter of the described sensor terminal of dynamic-configuration is the second random factor and the second stand-by period;

Described the first radio unit, specifically for:

Periodically to a plurality of terminal broadcast beacon frame in described WLAN (wireless local area network), described beacon frame comprises identify label territory, length field and information field, described the second random factor, the second stand-by period are stored in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field.

14. access point according to claim 10, is characterized in that, described terminal type is that broadband wireless data accesses terminal, and described the first parameter comprises the first random factor, and described the second parameter is a random number, described the first dispensing unit, specifically for:

The first parameter that the described broadband wireless data of dynamic-configuration accesses terminal is the first random factor;

Described the first Transmit-Receive Unit comprises:

The first comparison module, for accessing terminal after the described request message sent receiving broadband wireless data, generate a random number, and compare with described broadband wireless data the first corresponding random factor that accesses terminal;

The first determination module, if be less than or equal to described the first random factor for described random number, judge the access terminal authority of channel with the described WLAN (wireless local area network) of contention access of described broadband wireless data;

The first sending module, send the feedback message corresponding with described request message, the channel of the described WLAN (wireless local area network) of contention access so that described broadband wireless data accesses terminal for accessing terminal to described broadband wireless data.

15. access point according to claim 10, is characterized in that, described terminal type is sensor terminal, and described the first parameter comprises the second random factor, and described the second parameter is a random number, described the first dispensing unit, specifically for:

The first parameter of the described sensor terminal of dynamic-configuration is the second random factor;

Described the first Transmit-Receive Unit comprises:

The second comparison module, after the described request message receiving the sensor terminal transmission, generate a random number, and second random factor corresponding with described sensor terminal compares;

The second determination module, if be less than or equal to described the second random factor for described random number, judge that described sensor terminal has the authority of the channel of the described WLAN (wireless local area network) of contention access;

The second sending module, for to described sensor terminal, sending the feedback message corresponding with described request message, so that the channel of the described WLAN (wireless local area network) of described sensor terminal contention access.

16. a terminal, is characterized in that, comprising:

17. terminal according to claim 16, is characterized in that, described terminal type is that broadband wireless data accesses terminal, described the first parameter comprises the first random factor and the first stand-by period, described the second parameter is a random number, described reception judging unit, specifically for:

Receive the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the first random factor and the first stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field;

Described reception judging unit comprises:

The 3rd comparison module, for generating a random number, and compare with the first random factor in described information field;

The 3rd determination module, if be less than or equal to described the first random factor for described random number, judge the authority of the channel that self has the described WLAN (wireless local area network) of contention access;

The 4th determination module, if be greater than described the first random factor for described random number, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enters resting state, until, after reaching described the first stand-by period, continue to intercept described beacon frame.

18. terminal according to claim 16, is characterized in that, described terminal type is sensor terminal, and described the first parameter comprises the second random factor and the second stand-by period, and described the second parameter is a random number, described reception judging unit, specifically for:

Receive the beacon frame of described access point periodic broadcast, described beacon frame comprises identify label territory, length field and information field, store described the second random factor and the second stand-by period in described information field, described identify label territory is used to indicate the information content of described information field, and described length field is used to indicate the length scale of described information field;

Described reception judging unit comprises:

The 4th comparison module, for generating a random number, and compare with the second random factor in described information field;

The 5th determination module, if be less than or equal to described the second random factor for described random number, judge the authority of the channel that self has the described WLAN (wireless local area network) of contention access;

The 6th determination module, if be greater than described the second random factor for described random number, judge the authority of the channel of the described WLAN (wireless local area network) of self uncontested access, enters resting state, until, after reaching described the second stand-by period, continue to intercept described beacon frame.

19. terminal according to claim 16, is characterized in that, described terminal also comprises:

The channel access unit, if indicate described terminal to have the authority of the channel of the described WLAN (wireless local area network) of contention access for the feedback message received, access the channel of described WLAN (wireless local area network), to carry out data transmit-receive.

20. the connecting system of a WLAN (wireless local area network), is characterized in that, comprises an access point and a plurality of terminal, wherein,