CN103369550B

CN103369550B - A kind of targeted sites, inquiry website, communication system and the means of communication

Info

Publication number: CN103369550B
Application number: CN201210082628.1A
Authority: CN
Inventors: 黄开缔; 王学寰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2016-08-10
Anticipated expiration: 2032-03-26
Also published as: CN103369550A; WO2013143356A1

Abstract

The present invention is applicable to communication technical field, communication system between the means of communication of a kind of targeted sites and device, the means of communication of inquiry website and device, a kind of targeted sites and inquiry website is provided, the means of communication of described targeted sites include: targeted sites sends beacon frame, and described beacon frame includes the operating time information of targeted sites；Targeted sites monitors working channel what described operating time information was specified at predetermined instant.The present invention monitors the operating time information of working channel by increasing relevant targeted sites on the basis of existing beacon frame, after so inquiry website listens to beacon frame, in targeted sites is in the time period monitoring working channel, communication is initiated to targeted sites, so targeted sites monitors working channel without all the period of time, only monitoring working channel in the predetermined moment, it is high that such targeted sites monitors efficiency, relative energy-saving.

Description

A kind of targeted sites, inquiry website, communication system and the means of communication

Technical field

The invention belongs to communication technique field, particularly relate to a kind of targeted sites, inquiry website, communication system And the means of communication.

Background technology

The element of WLAN (Wireless Local Area Networks, WLAN) is BSS (Basic Service Set, Basic Service Set), BSS, by a certain particular coverage, has STA (Station, the website) composition of certain association, has in full-time administrative BSS in BSS network Centre website is referred to as AP (Access point, access point), and other website in the network all with it It is associated.The most multiple BSS networks are interconnected mutually by DS (Distribution System, compartment system) Connect and can form ESS (Express Service Set, extended service set), if BSS network lacks AP, Between website can also ad-hoc network and mutually the most directly communicate, this BSS network is referred to as IBSS (Independent Basic Service Set, independent basic service set).So that in network each website pre-connection state, In the case of low-power consumption, can the most mutually not obtain information by access website (such as AP), propose for this One NAN (Neighbor Awareness Network, proximity identification network) project, in this project, Before certain website (referred to as inquiring about website) in network and other websites (referred to as targeted sites) communication, Inquiry website, it is to be appreciated that there is which targeted sites in network, is generally obtained by beacon frame information discovery mechanism Knowing the existence of targeted sites, beacon frame is a kind of management frame, is used in a network coordinating targeted sites and surrounding Synchronization between website, the inside includes some sequential and radio network information, and targeted sites is in the work of oneself In channel, with random time as starting point, according to certain beacon frame cycle (span 20ms to 1000ms, Preset value is 100ms) send beacon frame, inquiry website is monitored beacon frame, can be assert after receiving beacon frame Targeted sites exists, and can initiate communication to targeted sites as required.But existing beacon frame information technology In, after targeted sites sends beacon frame, it is unclear that when inquiry website can initiate communication to oneself,

Summary of the invention

The embodiment of the present invention provides the means of communication of a kind of targeted sites, in order to solve existing beacon frame information skill In art targeted sites send need all the period of time monitor channel after beacon frame and cause monitoring inefficiency, do not save The technical problem of energy.

Embodiments providing the means of communication of a kind of targeted sites, described method comprises the steps:

Targeted sites sends beacon frame, and described beacon frame includes the operating time information of targeted sites；

Targeted sites monitors working channel what described operating time information was specified at predetermined instant.

Embodiments providing a kind of means of communication inquiring about website, described method comprises the steps:

Inquiry website monitors the beacon frame that targeted sites sends on its working channel, and described beacon frame includes mesh The operating time information of labeling station point.

Inquiry website, according to described operating time information, initiates communication to targeted sites.

Embodiments providing a kind of targeted sites, described targeted sites includes:

Beacon frame information unit, sends beacon frame for targeted sites, and described beacon frame includes targeted sites Operating time information；

Channel-monitoring unit, monitors at predetermined instant what described operating time information was specified for targeted sites Working channel.

Embodiments providing a kind of inquiry website, described inquiry website includes:

Beacon frame monitoring unit, monitors, for inquiring about website, the beacon that targeted sites sends on its working channel Frame, described beacon frame includes the operating time information of targeted sites.

Communication connection unit, is used for inquiring about website according to described operating time information, initiates to targeted sites logical Letter.

Embodiments provide the communication system between a kind of targeted sites and inquiry website, described system bag Above-mentioned targeted sites and inquiry website.

As shown from the above technical solution, the embodiment of the present invention has by increasing on the basis of existing beacon frame Close targeted sites and monitor the operating time information of working channel, after so inquiry website listens to beacon frame, root According to the operating time information comprised in beacon frame, in targeted sites is in the time period monitoring working channel, Communication is initiated to targeted sites.So targeted sites monitors working channel without all the period of time, only when predetermined Carve entrance and begin listening for working channel, so monitor efficiency high, relative energy-saving.

Accompanying drawing explanation

Fig. 1 is the targeted sites means of communication flow chart that first embodiment of the invention provides；

Fig. 2 is the inquiry website means of communication flow chart that second embodiment of the invention provides；

Fig. 3 is the block diagram of the targeted sites that third embodiment of the invention provides；

Fig. 4 is the block diagram of the inquiry website that fourth embodiment of the invention provides；

Fig. 5 is the structure of the thriteenth embodiment of the invention targeted sites provided and the communication system inquiring about website Schematic diagram.

Detailed description of the invention

In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein Only in order to explain the present invention, it is not intended to limit the present invention.

In existing beacon frame information technology, inquiry website cannot be known due to targeted sites and initiate communication to oneself The concrete moment, therefore, targeted sites, within the time period sent between two beacon frames, needs all the period of time Monitor channel, the time so initiating to communicate due to targeted sites reception inquiry website is indefinite and the shortest, existing The efficiency of some all the period of time monitor channels is the lowest, the most energy-conservation.

In order to solve above-mentioned technical problem, illustrate the technical side of the present invention below by specific embodiment Case.

Embodiment one:

Fig. 1 shows the flow process of a kind of targeted sites means of communication that first embodiment of the invention provides, in order to It is easy to illustrate to illustrate only the part relevant to the embodiment of the present invention.

Step S101, targeted sites sends beacon frame, and described beacon frame includes the working time letter of targeted sites Breath.

Conventionally, as the beacon frame of targeted sites transmission does not include the working time of targeted sites Information, targeted sites, after being sent beacon frame, immediately begins to monitor working channel until targeted sites is sent out Giving next beacon frame, such targeted sites monitors inefficiency, the most energy-conservation.So that inquiry website is known Dawn, when targeted sites began listening for working channel, before realizing this step, it is thus necessary to determine that good targeted sites Operating time information, i.e. targeted sites monitor the temporal information of working channel, include when to begin listening for work Channel also lasts long, and described operating time information is included in the beacon frame that targeted sites sends. In embodiments of the present invention, as preferably, described beacon frame includes sending cycle information, targeted sites Beacon frame is sent according to the described transmission cycle.Furthermore, it is necessary to illustrate, sending out described in the embodiment of the present invention The mode sending beacon frame includes, broadcast beacon frame, multicast beacon frame and clean culture beacon frame etc..

In embodiments of the present invention, described operating time information is the time letter that targeted sites monitors working channel Breath, begins listening for the time information of working channel including targeted sites, and targeted sites monitors working channel Duration Information, if it should be noted that described Duration Information there is no occurrence, then In the present embodiment, the persistent period of targeted sites monitoring working channel is default value, can be such as half letter The mark frame transmission cycle etc..When implementing, described time information can use absolute time, beacon frame week Issue or beacon frame numbering represent, described Duration Information can use absolute time or beacon frame periodicity Represent.Described absolute time refers to, the length of the time period of employing is definite value, the transmission week with beacon frame Phase is unrelated, time here specifically, targeted sites begins listening for the moment of working channel and currently transmitted beacon frame Time period between quarter is definite value, and the length of the time period of targeted sites monitoring working channel is also definite value； Described beacon frame periodicity refers to, time period length is relevant with the transmission cycle of beacon frame, sending out for beacon frame Send the several times in cycle, here specifically, the moment that targeted sites begins listening for working channel is sent out with current Sending the time period between the beacon frame moment is the several times in beacon frame information cycle, and targeted sites monitors work The length of the time period making channel is also the several times in beacon frame information cycle；Described beacon frame numbering refers to, According to sending time sequencing, beacon frame is numbered, and by the numbering that obtains to definite value N remainder, works as remainder When being a preset value M, after sending this beacon frame, targeted sites immediately begins to monitor working channel.Enter one Step, described operating time information also includes that targeted sites periodically monitors the time cycle of working channel, table Understand that described operating time information is permanently effective, if operating time information does not include week described time Phase, then described targeted sites begins listening for the time information of working channel simply to be had within the intended time period Effect.Which the above-mentioned beacon frame realizing different schemes is needed to use different parameters, concrete needs parameter Subsequent embodiment is specifically described.

Further, described beacon frame also includes the working channel information of targeted sites, and targeted sites is at it Sending beacon frame in the channel held, the channel of described support can be one or several letter in transmission channel Road, or all of transmission channel.In communication network, each website can dynamically change the work of oneself Make channel, but only have a working channel in each moment, owing to existing beacon frame is without targeted sites Working channel information, then targeted sites can only send beacon frame, in this channel in current operating channel Inquiry website can initiate communication to described targeted sites as required, and is positioned at the inquiry website of other channels Just monitor less than described beacon frame message, if targeted sites sends beacon frame to other multiple channels simultaneously, by The working channel of targeted sites is not known in the inquiry website being positioned at these channels, the most just cannot be to described mesh Labeling station point initiates communication, this reduces targeted sites and is queried the probability that website finds.To this end, at this In embodiment, beacon frame also includes the working channel information of targeted sites, and targeted sites is sent out in multiple channels Sending beacon frame, the inquiry website being now placed in other channels (non-described working channel) just can get mesh The working channel of labeling station point, when such inquiry website needs to initiate communication to described targeted sites, change The channel of oneself is to described working channel, and the most described targeted sites just can be by all of inquiry website Find, increase the probability that targeted sites is found.A simple example is now enumerated, it is assumed that stand for the ease of understanding Point can be operated in 1KHz, 2KHz, 3KHz frequency range, if targeted sites is operated in the work letter of 2KHz Beacon frame is sent, then looking in other frequency ranges (1KHz, 3KHz frequency range) on road and to all of channel Ask website and can also listen to this beacon frame, if the inquiry website in these frequency ranges needs and described targeted sites Communication, is adjusted to 2KHz by its working frequency range, initiates logical on the working channel of 2KHZ to targeted sites Believe, it can thus be seen that targeted sites can be by the inquiry in 1KHz, 2KHz, 3KHz frequency range Website finds, increases the probability that targeted sites is found.

Step S102, targeted sites monitors working channel in the moment that described operating time information is specified.

In this step, due to before it has been determined that good targeted sites is in the time period letter of monitoring working channel Breath, targeted sites only need to begin listening for working channel in the moment that job information is specified, and described specifies Moment is the moment point that the targeted sites included in operating time information begins listening for working channel.Target Station Point can accept to come from the communication request of inquiry website within the time period monitoring working channel.In this enforcement In example, come by arranging idle timer the persistent period of record object website monitoring working channel, specifically real Now, can realize described by record channel clear time, the free time of record object website Idle timer, when idle timer lost efficacy, Target Station terminates to monitor.

Further, described beacon frame also includes sending indicating bit, and described transmission indicating bit is used for indicating target Website sends information frame.If this indicating bit is effective, then when targeted sites begins listening for working channel, in its work Making to send on channel information frame, described information frame includes link information and/or the information on services of targeted sites.? When implementing, the transmission indicating bit Broadcast Bit in beacon frame is put 1, shows that this indicating bit is effective, When targeted sites begins listening for working channel, its working channel sends information frame, described beacon frame bag Including link information and/or the information on services of targeted sites, described link information is mainly targeted sites and inquiry station Operating parameter information relevant when communicating between point, described information on services mainly targeted sites needs to send Certain content, such as the service goal website of a KFC, this targeted sites is beginning listening for work When making channel, can select in working channel, send the information on services including special price food, inquire about website Targeted sites has been had further understanding.

Further, described beacon frame also includes message transmission rate information, and targeted sites is equal with inquiry website Supporting described message transmission rate, targeted sites clicks on row data communication with this message transmission rate with inquiry station. If beacon frame does not include message transmission rate information, or, targeted sites or inquiry website are not supported described Message transmission rate, then targeted sites carries out data communication with inquiry website with basal rate.

In embodiments of the present invention, include operating time information due in the beacon frame that targeted sites sends, This operating time information contains the relevant information that targeted sites monitors the working time section of working channel, target Website only need to monitor working channel in the time period of regulation, so supervises without all the period of time due to targeted sites Listen working channel, therefore by technical solution of the present invention, substantially increase channel-monitoring efficiency, but also compare More energy-conservation.

Embodiment two:

Fig. 2 shows a kind of flow process inquiring about the website means of communication that second embodiment of the invention provides, in order to It is easy to illustrate to illustrate only the part relevant to the embodiment of the present invention.

The described means of communication comprise the steps:

Step S201, inquiry website monitors the beacon frame that targeted sites sends, described letter on its working channel Mark frame includes the operating time information of targeted sites.

In embodiments of the present invention, each inquiry website has the working channel of oneself, and inquiry website is each Working channel on monitor beacon frame, preserved after listening to beacon frame.Generally inquiry website can be by event Trigger or periodically monitor beacon frame.Equally, the beacon frame that the targeted sites described in the embodiment of the present invention sends Mode include, broadcast beacon frame, multicast beacon frame and clean culture beacon frame etc..

Step S202, inquiry website, according to described operating time information, initiates communication to targeted sites.

In embodiments of the present invention, described beacon frame includes the operating time information of targeted sites, i.e. target Website monitors the temporal information of working channel, when begins listening for work including targeted sites and how long continues Time etc., further, described operating time information also include targeted sites periodically monitor working channel time Between the cycle.When inquiry website needs to be communicatively coupled with targeted sites, according to described operating time information, In targeted sites is in the time period monitoring working channel, initiate to communicate to targeted sites.

Further, described beacon frame also includes the working channel information of targeted sites, and targeted sites can be at it The channel supported sends beacon frame, and the channel of described support can be one or several channel in transmission channel, Or all of transmission channel, the inquiry website outside targeted sites working channel also can listen to this beacon Frame, if these inquiry websites need to be communicatively coupled with targeted sites, by the working channel of oneself to adjusting Whole on the working channel of described targeted sites, thus can be in targeted sites and monitor working channel In time period, the working channel in targeted sites initiates communication to targeted sites.

It should be noted that the premise realizing this step be inquiry website it can be found that targeted sites, but In practical situation, inquiry website is likely not to have discovery targeted sites, such as, during beacon frame information Error of transmission occurs, the beacon frame that inquiry website listens to does not includes the operating time information of targeted sites, Or described operating time information is wrong, operationally between in time period of specifying of information, targeted sites is not Its working channel of monitoring, so inquiry website is had the most not to find targeted sites；Or, beacon frame comprises The operating time information of targeted sites, the most out-of-date when inquiring about website and preparing to be communicatively coupled with target, The most now inquiry website does not finds that targeted sites yet.Inquiry station is caused when running into these similar situations When point does not find targeted sites, as the embodiment of the present invention preferred embodiment, described beacon frame includes Targeted sites sends the transmission cycle information of beacon frame, and inquiry website is according to described transmission cycle information and works as The delivery time of front beacon frame, at the delivery time of next beacon frame, monitors new beacon frame again, if Inquiry website again without finding targeted sites, then once again listens for new beacon frame until it can be found that Target Station Point.

Further, the beacon frame that described inquiry website listens to also includes send indicating bit, when this instruction When position is effective, generally this indicating positions is 1, then when inquiry website needs to be communicatively coupled with targeted sites, Monitoring the information frame that targeted sites sends on the working channel of targeted sites, described information frame includes Target Station The link information of point and/or information on services.Described link information mainly targeted sites and inquiry station point lead to Operating parameter information relevant during letter, the such as signal intensity etc. of information transmission, described information on services is mainly Targeted sites needs the certain content sent, such as the service goal website of a KFC, this target Website, when beginning listening for working channel, can select to send the clothes including special price food in working channel Business information.

Further, the beacon frame that described inquiry website listens to also includes message transmission rate information, institute Stating inquiry website and targeted sites all supports described message transmission rate, inquiry website is with this message transmission rate Carry out data communication with targeted sites, so can pass through higher rate transmissioning data.If in beacon frame not Including described message transmission rate information, or, inquiry website or targeted sites do not support that described data are transmitted Speed, then inquiry website carries out data communication with basal rate and targeted sites.

In embodiments of the present invention, inquiry website monitors the beacon frame that targeted sites sends, in described beacon frame Include operating time information, when this operating time information contains the work that targeted sites monitors working channel Between the relevant information of section, when inquiring about website and needing to initiate communication to targeted sites, only need to be at targeted sites Working time section its initiation introversive in monitor channel communicates, and so inquiry website only need to be in the stipulated time Section initiates communication to targeted sites, and targeted sites monitors working channel without all the period of time, therefore by this Bright technical scheme, substantially increases channel-monitoring efficiency, but also relative energy-saving.

Embodiment three:

Fig. 3 shows the block diagram of a kind of targeted sites that third embodiment of the invention provides, in order to just The part relevant to the embodiment of the present invention is illustrate only in explanation.

A kind of targeted sites, including:

Beacon frame information unit 301, sends beacon frame for targeted sites, and described beacon frame includes Target Station The operating time information of point；

Channel-monitoring unit 302, starts prison for targeted sites in the moment that described operating time information is specified Listen working channel.

In embodiments of the present invention, existing targeted sites is after sending beacon frame, owing to not knowing to inquire about website When send connection request to oneself, it is therefore desirable to all the period of time monitor channel, this channel-monitoring mode efficiency Low, the most energy-conservation.And in the embodiment of the present invention, it is necessary first to determine the operating time information of targeted sites, Described operating time information is included in the beacon frame that targeted sites sends, and described operating time information is target Website is in the temporal information monitoring working channel, begins listening for the moment letter of working channel including targeted sites Breath, and the Duration Information of targeted sites monitoring working channel, if it should be noted that described lasting Temporal information there is no occurrence, then in the present embodiment, targeted sites monitor working channel lasting time Between be default value, can be such as half beacon frame information cycle etc..When implementing, the described moment believes Breath can use absolute time, beacon frame periodicity or beacon frame numbering to represent, the described persistent period can adopt Represent with absolute time or beacon frame periodicity.Described absolute time, beacon frame cycle number with beacon frame Specifically describing in step S101, here is omitted.In the present embodiment, as preferably, described Beacon frame also includes sending cycle information, and targeted sites sends beacon frame according to the described transmission cycle.

Further, described beacon frame also includes the working channel information of targeted sites, and targeted sites is at it Sending beacon frame in the channel held, the channel of described support can be one or several channel in transmission channel, Or all of transmission channel.In communication network, each website can dynamically change the work letter of oneself Road, but only have a working channel in each moment, due to the work without targeted sites of the existing beacon frame Channel information, then targeted sites can only send beacon frame, the inquiry in this channel in current operating channel Website can initiate communication to described targeted sites as required, and is positioned at the inquiry website of other channels with regard to nothing Method listens to described beacon frame message, if targeted sites sends beacon frame to other multiple channels simultaneously, due to The inquiry website being positioned at these channels does not knows the working channel of targeted sites, the most just cannot be to described target Website initiates communication, this reduces targeted sites and is queried the probability that website finds.To this end, in this reality Executing in example, beacon frame also includes the working channel information of targeted sites, and targeted sites sends in multiple channels Beacon frame, the inquiry website being now placed in other channels (non-described working channel) just can get target The working channel of website, when such inquiry website needs to initiate communication to described targeted sites, change is certainly Oneself channel is to described working channel, and the most described targeted sites just can be sent out by all of inquiry website Existing, increase the probability that targeted sites is found.

Further, described beacon frame also includes message transmission rate information, described targeted sites and inquiry station Point all supports described message transmission rate, and targeted sites clicks on row data with this message transmission rate with inquiry station Communication, if beacon frame does not include described message transmission rate information, or, targeted sites or inquiry website Do not support described message transmission rate, then targeted sites carries out data communication with inquiry website with basal rate.

Further, described beacon frame also includes sending indicating bit, and described transmission indicating bit is used for indicating target Website sends information frame.If this indicating bit is effective, then when targeted sites begins listening for working channel, in its work Making to send on channel information frame, described information frame includes link information and/or the information on services of targeted sites.Logical Chang Suoshu indicating positions 1 is effective.

In embodiments of the present invention, due to before it has been determined that good targeted sites be in monitor working channel time Between segment information, channel-monitoring unit controls targeted sites only need to begin listening for working channel i.e. in the predetermined moment Can.

Embodiment four:

Fig. 4 shows the block diagram of a kind of targeted sites that fourth embodiment of the invention provides, in order to just The part relevant to the embodiment of the present invention is illustrate only in explanation.

A kind of inquiry website, including:

Beacon frame monitoring unit 401, monitors what targeted sites sent for inquiring about website on its working channel Beacon frame, described beacon frame includes the operating time information of targeted sites.

Communication connection unit 402, is used for inquiring about website and initiates to targeted sites according to described operating time information Communication.

In embodiments of the present invention, each inquiry website has the working channel of oneself, and inquiry website is each Working channel on monitor beacon frame, preserved after listening to beacon frame.Generally inquiry website can be by event Trigger or periodically monitor beacon frame.Described beacon frame includes the operating time information of targeted sites, i.e. mesh Labeling station point monitors the temporal information of working channel, when begins listening for work including targeted sites and continues many Long-time etc., further, described operating time information also includes that targeted sites periodically monitors working channel Time cycle.Inquiry website, according to described temporal information, is in the time monitoring working channel in targeted sites In section, send connection request to targeted sites.

Further, described beacon frame also includes the working channel information of targeted sites, and targeted sites can be to it The channel supported sends beacon frame, and the channel of described support can be one or several channel in transmission channel, Or all of transmission channel, even at described working channel outside inquiry website also can listen to this Beacon frame, if these inquiry websites need to be communicatively coupled with Target Station, arrives the working channel of oneself It is adjusted on the working channel of described targeted sites, thus can be in monitoring working channel in targeted sites Time period in, targeted sites working channel to targeted sites initiate communication.

It addition, in a practical situation, can be potentially encountered inquiry website and do not find the situation of targeted sites, make For the embodiment of the present invention preferred embodiment, described beacon frame includes that targeted sites sends the transmission of beacon frame Cycle information, inquiry website according to described transmission cycle information and the delivery time of current beacon frame, under In one beacon frame information moment, again monitor new beacon frame, if inquiry website is again without finding Target Station Point, then once again listen for new beacon frame until it can be found that targeted sites.

Further, the beacon frame that described inquiry website listens to also includes send indicating bit, when this instruction When position is effective, generally this indicating positions is 1, then when inquiry website needs to be communicatively coupled with targeted sites, Monitoring the information frame that targeted sites sends on the working channel of targeted sites, described information frame includes Target Station The link information of point and/or information on services.

Further, the beacon frame that described inquiry website listens to also includes message transmission rate information, institute State inquiry website and targeted sites all support described message transmission rate inquiry website with this message transmission rate with Targeted sites carries out data communication, if beacon frame does not include described message transmission rate information, or, look into Ask website or targeted sites does not support described message transmission rate, then inquiry website is with basal rate and Target Station Click on row data communication.So can pass through higher rate transmissioning data.

Can be seen that from above-mentioned several embodiments, targeted sites depends on Target Station with the working method of inquiry website The operating time information included in beacon frame that point sends, begins listening for working channel including targeted sites Time information, and the Duration Information of targeted sites monitoring working channel, further, during described work Between information also include that targeted sites periodically monitors the time cycle of working channel.Wherein, described time information Absolute time, beacon frame periodicity or beacon frame numbering can be used to represent, described Duration Information is permissible Absolute time or beacon frame periodicity is used to represent.These information are embodied in the parameter that beacon frame comprises In, in the following embodiments, by selecting different beacon frame parameters to describe targeted sites and inquiry station Communication between point.

Embodiment five:

In the present embodiment, targeted sites periodically monitors working channel, and targeted sites begins listening for working channel Time information and targeted sites monitor the Duration Information of working channel and all use the performance of absolute time Mode.

Step S501, targeted sites send beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle, refer to adjacent twice beacon frame and make a reservation for the time interval of transmission time；

B, beacon frame information lag time, refer to this beacon frame actual transmission time and predetermined when sending Between difference；

C, operation time Offset, refer to that this beacon frame is actual or predetermined delivery time and targeted sites Beginning listening for the time interval in working channel moment, 0 value represents just to be monitored in targeted sites next time；

D, working hour minimum window, refer to targeted sites and monitor the shortest persistent period of working channel, 0 represents that all the period of time monitors；

E, mode of operation cycle, refer to adjacent twice begin listening for the time interval of working channel；

F, working channel, refer to the channel that Target Station is monitored；

G, message transmission rate, refer to message transmission rate between targeted sites and inquiry website；

H, transmission indicating bit, show that this indicating positions 1 represents that targeted sites is beginning listening for working channel Time send information frame；

Wherein, B, G, H item is optional information, and B, C, D, E item is described operating time information, Described operating time information indicates targeted sites and monitors the temporal information of working channel, includes when to start prison Listen working channel and last long.

Step S502, targeted sites monitors working channel in the moment that described operating time information is specified.

In the present embodiment, described predetermined instant is that the targeted sites that operating time information comprises begins listening for The moment point of working channel, the most in the present embodiment by operation time Offset, can know next time Targeted sites begins listening for the moment point of working channel.

Step S503, inquiry website monitors the beacon frame that targeted sites sends on its working channel.

In the present embodiment, inquiry website is triggered by event or periodically monitors working channel.

Step S504, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time offset, working hour minimum window, mode of operation cycle) and during the transmission of current beacon frame Carve, targeted sites can be known and be in the time period monitoring working channel, wherein beacon frame information lag time For option, inquiry website, within this period, is initiated logical on the working channel of targeted sites to targeted sites Letter.

If the beacon frame listened to includes sending indicating bit and effectively, then inquiry website needs and Target Station When point is communicatively coupled, the information frame that targeted sites sends need to be monitored, and with messaging parameter in this information frame Communication connection is set up with targeted sites；If beacon frame also includes message transmission rate and inquiry website and mesh Labeling station point all supports described message transmission rate, then inquiry station point selects this message transmission rate and targeted sites Carrying out data communication, otherwise, inquiry website carries out data communication with basal rate and targeted sites.

Additionally need to be likely not to have discovery targeted sites, such as due to beacon frame transmissions in view of inquiry website Mistake, causes the operating time information of operating time information or the mistake not having targeted sites in beacon frame, Now, inquiry website is according to delivery time, beacon frame information lag time and the beacon frame of current beacon frame The transmission cycle obtains the transmission time shaft of beacon frame, and wherein beacon frame information lag time is optional information, and According to now countershaft monitor target frame send new beacon frame, again according to operating time information therein to Targeted sites initiates communication, until it appeared that targeted sites.

It should be noted that above-mentioned 4 steps do not have concrete time order and function relation, Target Station in time Point and inquiry website only need to make concrete operations at predetermined instant.

Embodiment six:

In the present embodiment, targeted sites periodically monitors working channel, and targeted sites begins listening for working channel Time information use beacon frame periodicity manifestation mode, targeted sites monitor working channel persistent period Information uses the manifestation mode of absolute time.

Step S601, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle；

B, beacon frame information lag time；

C, operation time cycle Offset, refer to that this beacon frame is actual or predetermined delivery time and target Website begins listening for the beacon frame periodicity being separated by working channel moment, the most currently transmitted beacon frame next time After, through several beacon frame cycles, targeted sites begins listening for working channel, and 0 value represents just in target Website is monitored；

D, working hour minimum window；

E, mode of operation periodicity, refer to adjacent twice begin listening for the beacon frame week that working channel is separated by Issue；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Step S602, targeted sites monitors working channel in the moment that described operating time information is specified.With step Rapid S502 is identical, and here is omitted.

Step S603, inquiry website monitors the beacon frame that targeted sites sends on its working channel.With step S503 is identical, and here is omitted.

Step S604, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time cycle Offset, working hour minimum window, mode of operation periodicity) and current beacon frame Delivery time, can know targeted sites be in monitor working channel time period, wherein beacon frame information Lag time is option, and inquiry website is within this period, to Target Station on the working channel of targeted sites Point initiates communication.

To sum up, the present embodiment is with embodiment five difference, and inquiry website begins listening for working channel Moment is associated with the delivery time of beacon frame, i.e. targeted sites will start after some specific beacon frame sends Monitor working channel.

Embodiment seven:

In the present embodiment, targeted sites periodically monitors working channel, and labeling station point begins listening for working channel Time information uses the manifestation mode of beacon frame numbering, and targeted sites monitors the Duration Information of working channel Use the manifestation mode of absolute time.

Step S701, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame numbering SeqNo, send each beacon frame to targeted sites and it sequentially numbered；

B, beacon frame information cycle；

C, beacon frame information lag time；

D, operation time periodicity N, refer to the numbering of beacon frame to N remainder, when remainder is certain particular value Time, targeted sites begins listening for working channel after sending this beacon frame；

E, working hour minimum window；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Wherein, C, G, H item is optional information, and A, C, D, E item is described operating time information, Described operating time information indicates targeted sites and monitors the temporal information of working channel, includes when to start prison Listen working channel and last long.

Step S702, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.Identical with step S502, here is omitted.

Step S703, inquiry website monitors the beacon frame that targeted sites sends on its working channel.With step S503 is identical, and here is omitted.

Step S704, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Beacon frame numbering SeqNo, working hour minimum window, operation time periodicity N) and current beacon frame Delivery time, can know targeted sites be in monitor working channel time period, wherein beacon frame information Lag time is option, and inquiry website is within this period, to Target Station on the working channel of targeted sites Point initiates communication.

To sum up, the present embodiment is with the difference of embodiment six, and described targeted sites monitors working channel Temporal information cross beacon frame numbering represent.

Embodiment eight:

In the present embodiment, targeted sites no longer periodically monitors working channel, and targeted sites begins listening for work The time information of channel and targeted sites are monitored the Duration Information of working channel and are all used absolute time Manifestation mode.

Step S801, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle；

B, beacon frame information lag time；

C, expection operation time number, represent that current beacon frame indicates several targeted sites monitoring work letter The working hour in road；

D, operation time Offset；

E, working hour minimum window；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Wherein, B, G, H item is optional information, and B, C, D, E item is described operating time information. Owing to operating time information not including, targeted sites monitors the time cycle of working channel, simply include pre- Phase operation time number, such as, if described expection operation time number is 2, one of them monitors working channel Working hour distance current beacon frame has 2 beacon frame information cycles, and another monitors the work of working channel Time segment distance current beacon frame have 6 beacon frame information cycles, then now operation time Offset has two Value, one is the time span in 2 beacon frame information cycles, and one when being 6 beacon frame information cycles Between length, described expection operation time number instruction time period in operating time information effective.Therefore from work Make that temporal information can only be known targeted sites and monitor the temporal information of working channel in the recent period.

Step S802, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.

Step S803, inquiry website monitors the beacon frame that targeted sites sends on its working channel.

Step S804, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time offset, working hour minimum window, expection operation time number) and the transmission of current beacon frame In the moment, targeted sites can be known and be in the time period monitoring working channel, when wherein beacon frame information is delayed Between be option, inquiry website within this period, on the working channel of targeted sites to targeted sites initiate Communication.

If described inquiry website needs to be communicatively coupled with targeted sites, described beacon frame do not has target The operating time information of website, or in the time range indicated by described expection operation time number, do not have Targeted sites is in the time period monitoring working channel, and now operating time information is out-of-date, and inquiry website does not has Find targeted sites, then inquiry website according to the delivery time of current beacon frame, beacon frame information delayed time Between and the transmission time shaft of the acquisition of information beacon frame such as beacon frame information cycle, wherein beacon frame information is delayed Time is optional information, and monitors, according to now countershaft, the new beacon frame that target frame sends, again according to it In operating time information initiate communication to targeted sites, until it appeared that targeted sites.

To sum up, the present embodiment difference from embodiment five is, targeted sites no longer periodically enters letter Road listening state, but dynamically monitor working channel, therefore the information carried from beacon frame can only be known near The targeted sites of phase monitors the temporal information of working channel.

Embodiment nine:

In the present embodiment, targeted sites no longer periodically monitors working channel, and targeted sites begins listening for work The time information of channel uses the manifestation mode of beacon frame periodicity, and targeted sites monitors continuing of working channel Temporal information uses the manifestation mode of absolute time.

Step S901, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle；

B, beacon frame information lag time；

C, expection operation time number；

D, operation time cycle Offset；

E, working hour minimum window；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Wherein, B, G, H item is optional information, and B, C, D, E item is described operating time information. Owing to operating time information not including, targeted sites monitors the time cycle of working channel, simply include pre- Phase operation time number, such as, if described expection operation time number is 2, one of them monitors working channel Working hour distance current beacon frame has 2 beacon frame information cycles, and another monitors the work of working channel Time segment distance current beacon frame have 6 beacon frame information cycles, then now operation time cycle Offset has Two values, one is 2, and one is 6, the working time within the time period of described expection operation time number instruction Information is effective.Therefore can only know targeted sites from operating time information and monitor the time of working channel in the recent period Information.

Step S902, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.

Step S903, inquiry website monitors the beacon frame that targeted sites sends on its working channel.

Step S904, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time cycle Offset, working hour minimum window, expection operation time number) and current beacon frame Delivery time, can know targeted sites be in monitor working channel time period, wherein beacon frame information Lag time is option, and inquiry website is within this period, to Target Station on the working channel of targeted sites Point initiates communication.

To sum up, the present embodiment difference from embodiment eight is, targeted sites is at some specific beacon frame Working channel is begun listening for after transmission.

Embodiment ten:

In the present embodiment, targeted sites periodically monitors working channel, and targeted sites begins listening for working channel Time information and targeted sites monitor working channel Duration Information all use beacon frame periodicity Manifestation mode.

Step S1001, targeted sites enters transmission beacon frame state at predetermined instant and concurrently send beacon frame, sends out This state is exited after sending.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle；

B, beacon frame information lag time；

C, operation time cycle Offset；

D, minimum period working hour window, represent that targeted sites monitors the lasting minimum letter of working channel Mark frame period number, represents the minimum duration monitoring working channel with the several times time in beacon frame cycle, If this window is only certain particular value, then need to be saved this；

E, mode of operation periodicity；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Step S1002, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.

Step S1003, inquiry website monitors the beacon frame that targeted sites sends on its working channel.

Step S1004, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website is according to relative index acquisition of information Target Station in the beacon frame listened to Point is in the time shaft of monitor channel state, and described relative index information includes:

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time cycle Offset, minimum period working hour window, mode of operation cycle) and present beacon The delivery time of frame, can know targeted sites and be in the time period monitoring working channel, and wherein beacon frame is sent out Sending lag time is option, and inquiry website is within this period, to target on the working channel of targeted sites Website initiates communication.

To sum up, the present embodiment difference from embodiment six is, targeted sites monitors continuing of working channel Time was represented by the beacon frame information cycle, rather than absolute time.

Embodiment 11:

In the present embodiment, targeted sites periodically monitors working channel, and labeling station point begins listening for working channel Time information uses the manifestation mode of beacon frame numbering, and targeted sites monitors the Duration Information of working channel Use the manifestation mode in beacon frame cycle.

Step S1101, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame numbering SeqNo；

B, beacon frame information cycle；

C, beacon frame information lag time；

D, operation time periodicity N；

E, minimum period working hour window；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Step S1102, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.

Step S1103, inquiry website monitors the beacon frame that targeted sites sends on its working channel.With step Rapid S503 is identical.

Step S1104, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Beacon frame numbering SeqNo, minimum period working hour window, operation time periodicity N) and currently believe The delivery time of mark frame, can know targeted sites and be in the time period monitoring working channel, wherein beacon frame Transmission lag time is option, and inquiry website is within this period, to mesh on the working channel of targeted sites Labeling station point initiates communication.

To sum up, the present embodiment difference from embodiment seven is, targeted sites monitors continuing of working channel Time was represented by the beacon frame information cycle, rather than used absolute time.

Embodiment 12:

In the present embodiment, targeted sites no longer periodically monitors working channel, and targeted sites begins listening for work The time information of channel and targeted sites are monitored the Duration Information of working channel and are all used beacon frame periodicity Manifestation mode.

Step S1201, targeted sites sends beacon frame, and described beacon frame includes operating time information.

In the present embodiment, described beacon frame includes:

A, beacon frame information cycle；

B, beacon frame information lag time；

C, expection operation time number；

D, operation time cycle Offset；

E, minimum period working hour window；

F, working channel；

G, message transmission rate；

H, transmission indicating bit；

Wherein, B, G, H item is optional information, and B, C, D, E item is described operating time information. Owing to operating time information not including, targeted sites monitors the time cycle of working channel, simply include pre- Phase operation time number, such as, if described expection operation time number is 2, one of them monitors working channel Working hour distance current beacon frame has 2 beacon frame information cycles, and another monitors the work of working channel Time segment distance current beacon frame have 6 beacon frame information cycles, then now operation time Offset has two Value, one is 2, and one is 6, operating time information within the time period of described expection operation time number instruction Effectively.Therefore can only know targeted sites from operating time information and monitor the temporal information of working channel in the recent period.

Step S1202, targeted sites is believed in predetermined instant monitoring work what described operating time information was specified Road.

Step S1203, inquiry website monitors the beacon frame that targeted sites sends on its working channel.

Step S1204, inquiry website, according to described operating time information, initiates communication to targeted sites.

In the present embodiment, inquiry website according to described operating time information (i.e. beacon frame information lag time, Operation time cycle Offset, minimum period working hour window, expection operation time number) and currently believe The delivery time of mark frame, can know targeted sites and be in the time period monitoring working channel, wherein beacon frame Transmission lag time is option, and inquiry website is within this period, to mesh on the working channel of targeted sites Labeling station point initiates communication.

To sum up, the present embodiment difference from embodiment nine is, targeted sites monitors continuing of working channel Time was represented by the beacon frame information cycle, rather than used absolute time.

It should be noted that in addition to the compound mode of several operating time information described in embodiment five to ten two, Such as periodically monitor working channel as targeted sites, targeted sites begins listening for the time information of working channel Using the manifestation mode of absolute time, targeted sites is monitored the Duration Information of working channel and is used beacon frame The manifestation mode in cycle, or targeted sites no longer periodically monitoring working channel, targeted sites begins listening for The time information of working channel uses the manifestation mode of absolute time, and targeted sites monitors continuing of working channel Temporal information uses the manifestation mode in beacon frame cycle etc., and now operating time information only need to be arranged accordingly Parameter, these assembled schemes are all within scope.

Embodiment 13: present embodiments provide the communication system between a kind of targeted sites and inquiry website, as Shown in Fig. 5, this communication system includes looking into described in the targeted sites 131 described in embodiment three and embodiment four Asking website 132, described targeted sites 131 sends the beacon frame comprising operating time information, inquires about website 132 Monitoring described beacon frame, targeted sites 131 begins listening for working channel, inquiry station at the operation time specified Point 132, according to listening to the operating time information included in beacon frame, is in monitoring work in targeted sites In the time period of channel status, initiate to communicate to targeted sites.In the present embodiment, due to Target Station Point 131, without all the period of time monitor channel, improves channel-monitoring efficiency.

Can be seen that from above-described embodiment, in the embodiment of the present invention, the beacon frame that targeted sites sends includes mesh The operating time information of labeling station point, after inquiry website listens to described beacon frame, can get targeted sites When begin listening for working channel and the information such as last long, when inquiry website needs and targeted sites When setting up communication connection, in targeted sites is in the time period monitoring working channel, initiate to targeted sites Communicating, by the embodiment of the present invention, targeted sites is without immediately beginning to prison every time after sending beacon frame Listen working channel, only need to monitor working channel in the scheduled time, which enhance the monitoring of targeted sites Efficiency.Additionally, also include the working channel information of targeted sites in described beacon frame, targeted sites can be to it The channel supported sends beacon frame, and the inquiry website being positioned at other channels also can find described targeted sites, when When inquiry website needs to set up communication connection with targeted sites, only the working channel of oneself need to be adjusted to target The working channel of website, initiates to communicate to targeted sites on the working channel of targeted sites, so may be used To be greatly improved the probability that targeted sites is found.

It will appreciated by the skilled person that all or part of step realizing in above-described embodiment method The program that can be by completes to instruct relevant hardware, and described program can be stored in a computer In read/write memory medium, described storage medium, such as ROM/RAM, disk, CD etc..

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention Protection domain within.

Claims

1. the means of communication of a targeted sites, it is characterised in that described method comprises the steps:

Targeted sites monitors working channel in the moment that described operating time information is specified；

Described beacon frame also includes the working channel information of targeted sites, and described targeted sites is at its letter supported Road sends beacon frame.

2. the means of communication as claimed in claim 1, it is characterised in that described beacon frame also includes sending week Phase information, targeted sites sends beacon frame according to the described transmission cycle.

3. the means of communication as claimed in claim 1, it is characterised in that described beacon frame also includes that data pass Defeated rate information.

4. the means of communication as claimed in claim 3, it is characterised in that targeted sites is transmitted with described data Speed and inquiry station click on row data communication.

5. the means of communication as claimed in claim 1, it is characterised in that described beacon frame also includes that transmission refers to Show position, when described transmission indicating bit is used for indicating targeted sites to begin listening for working channel, at its working channel Upper transmission information frame.

6. the means of communication as claimed in claim 5, it is characterised in that described information frame includes targeted sites Link information and/or information on services.

7. the means of communication as described in any one of claim 1 to 6, it is characterised in that described working time Information is the temporal information that targeted sites monitors working channel, begins listening for working channel including targeted sites Time information and targeted sites monitor the Duration Information of working channel, and wherein, described time information can To use absolute time, beacon frame periodicity or beacon frame numbering to represent, described Duration Information can be adopted Represent with absolute time or beacon frame periodicity.

8. the means of communication as claimed in claim 7, it is characterised in that described operating time information also includes Targeted sites periodically monitors the time cycle of working channel.

9. the means of communication inquiring about website, it is characterised in that the described means of communication comprise the steps:

Inquiry website monitors the beacon frame that targeted sites sends on its working channel, and described beacon frame includes mesh The operating time information of labeling station point；

Inquiry website, according to described operating time information, initiates communication to targeted sites；

Described beacon frame also includes the working channel information of targeted sites, and inquiry website is according to the described working time Information and working channel information, initiate communication at the working channel specified to targeted sites.

10. the means of communication as claimed in claim 9, it is characterised in that described operating time information is mesh Labeling station point monitors the temporal information of working channel, begins listening for the time information of working channel including targeted sites And the Duration Information of targeted sites monitoring working channel, wherein, described time information can use absolutely Representing time, beacon frame periodicity or beacon frame numbering, described Duration Information can use absolute time Between or beacon frame periodicity represent.

11. means of communication as claimed in claim 10, it is characterised in that described operating time information also wraps Include targeted sites and periodically monitor the time cycle of working channel.

12. means of communication as claimed in claim 9, it is characterised in that described beacon frame also includes target Website sends the transmission cycle information of beacon frame.

13. means of communication as claimed in claim 12, it is characterised in that if described inquiry website is not sent out Existing targeted sites, then according to the transmission cycle information described in beacon frame, monitor the new of targeted sites transmission Beacon frame, inquiry website is according to the operating time information in new beacon frame, or operating time information and work Channel information, initiates communication to targeted sites.

14. means of communication as claimed in claim 13, it is characterised in that described inquiry website does not find Targeted sites specifically includes: do not include the working time letter of targeted sites in the beacon frame that inquiry website listens to Breath, or within the time period that described operating time information is specified, targeted sites does not monitor its work letter Road, or described operating time information is the most out-of-date.

15. means of communication as described in any one of claim 9 to 14, it is characterised in that described in listen to Targeted sites send beacon frame in also include send indicating bit, described transmission indicating bit is used for indicating inquiry When website needs to be communicatively coupled with targeted sites, the working channel of targeted sites is monitored targeted sites The information frame sent.

16. means of communication as claimed in claim 15, it is characterised in that described information frame includes Target Station The link information of point and/or information on services.

17. means of communication as described in any one of claim 9 to 14, it is characterised in that described in listen to Targeted sites send beacon frame in also include message transmission rate information.

18. means of communication as claimed in claim 17, it is characterised in that inquiry website transmits with these data Speed and targeted sites carry out data communication.

19. 1 kinds of targeted sites, it is characterised in that described targeted sites includes:

Channel-monitoring unit, the moment specified at described operating time information for targeted sites begins listening for work Make channel；

20. targeted sites as claimed in claim 19, it is characterised in that described beacon frame also includes sending Cycle information, targeted sites sends beacon frame according to the described transmission cycle.

21. targeted sites as claimed in claim 19, it is characterised in that described beacon frame also includes data Transmission rate information.

22. targeted sites as claimed in claim 21, it is characterised in that targeted sites is transmitted with these data Speed and inquiry station click on row data communication.

23. targeted sites as claimed in claim 19, it is characterised in that described beacon frame also includes sending Indicating bit, when described transmission indicating bit is used for indicating targeted sites to begin listening for working channel, believes in its work Information frame is sent on road.

24. targeted sites as claimed in claim 23, it is characterised in that described information frame includes Target Station The link information of point and/or information on services.

25. targeted sites as described in any one of claim 19 to 24, it is characterised in that described work Temporal information is the temporal information that targeted sites monitors working channel, begins listening for work letter including targeted sites The time information in road and targeted sites monitor the Duration Information of working channel, and wherein, the described moment believes Breath can use absolute time, beacon frame periodicity or beacon frame numbering to represent, described Duration Information can To use absolute time or beacon frame periodicity to represent.

26. targeted sites as claimed in claim 25, it is characterised in that described operating time information also wraps Include targeted sites and periodically monitor the time cycle of working channel.

27. 1 kinds of inquiry websites, it is characterised in that described inquiry website includes:

Beacon frame monitoring unit, monitors, for inquiring about website, the beacon that targeted sites sends on its working channel Frame, described beacon frame includes the operating time information of targeted sites；

Communication connection unit, is used for inquiring about website according to described operating time information, initiates to targeted sites logical Letter；

Described beacon frame also includes that working channel information, described beacon frame monitoring unit are used for inquiring about website needs When being communicatively coupled with targeted sites, according to described operating time information and working channel information, specifying Working channel to targeted sites initiate communication.

28. inquire about website as claimed in claim 27, it is characterised in that described operating time information is mesh Labeling station point monitors the temporal information of working channel, begins listening for the time information of working channel including targeted sites And the Duration Information of targeted sites monitoring working channel, wherein, described time information can use absolutely Representing time, beacon frame periodicity or beacon frame numbering, described Duration Information can use absolute time Between or beacon frame periodicity represent.

29. inquire about website as claimed in claim 28, it is characterised in that described operating time information also wraps Include targeted sites and periodically monitor the time cycle of working channel.

30. inquire about website as claimed in claim 27, it is characterised in that described beacon frame also includes target Website sends the transmission cycle information of beacon frame.

31. inquire about website as claimed in claim 30, it is characterised in that if described inquiry website is not sent out Existing targeted sites, then according to the transmission cycle information described in beacon frame, monitor the new of targeted sites transmission Beacon frame, inquiry website is according to the operating time information in new beacon frame, or operating time information and work Channel information, initiates communication to targeted sites.

32. inquire about website as claimed in claim 31, it is characterised in that described inquiry website does not find Targeted sites specifically includes: do not include the working time letter of targeted sites in the beacon frame that inquiry website listens to Breath, or within the time period that described operating time information is specified, targeted sites does not monitor its work letter Road, or described operating time information is the most out-of-date.

The 33. inquiry websites as described in any one of claim 27 to 32, it is characterised in that described monitoring To the beacon frame that sends of targeted sites in also include sending indicating bit, described transmission indicating bit is looked into for instruction When inquiry website needs to be communicatively coupled with targeted sites, the working channel of targeted sites is monitored Target Station The information frame that point sends.

34. inquire about website as claimed in claim 33, it is characterised in that described information frame includes Target Station The link information of point and/or information on services.

The 35. inquiry websites as described in any one of claim 27 to 32, it is characterised in that its feature exists In, described in the beacon frame that sends of the targeted sites that listens to also includes message transmission rate information.

36. inquire about website as claimed in claim 35, it is characterised in that inquiry website transmits with these data Speed and targeted sites carry out data communication.

Communication system between 37. 1 kinds of targeted sites and inquiry website, described system includes such as claim 19 To the targeted sites described in 26 any one, and the inquiry website as described in any one of claim 27 to 36.