CN103781153A - Definition method of element field and device - Google Patents

Definition method of element field and device Download PDF

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Publication number
CN103781153A
CN103781153A CN201210407258.4A CN201210407258A CN103781153A CN 103781153 A CN103781153 A CN 103781153A CN 201210407258 A CN201210407258 A CN 201210407258A CN 103781153 A CN103781153 A CN 103781153A
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China
Prior art keywords
described
number
field
element
element field
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CN201210407258.4A
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Chinese (zh)
Inventor
李云波
彼得·禄
伍天宇
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华为技术有限公司
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Priority to CN201210407258.4A priority Critical patent/CN103781153A/en
Publication of CN103781153A publication Critical patent/CN103781153A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Abstract

The embodiment of the invention discloses a definition method of an element field and a device, relating to the field of communication technology. The method comprises a step of adding a beacon number or the beacon number and a target site for an element field, wherein the beacon number is used for indicating a beacon frame period number of a site from the reception of the beacon frame to which the element field belongs to the occurrence of a triggered event, and the element field is an element identification number, a length and the content of the triggered event from a field head to a field tail, and a step of broadcasting the beacon frame with the element field. The method and the device are suitable for the interaction between an access point in a wireless LAN system and a site.

Description

The define method of element field and device

Technical field

The present invention relates to communication technical field, particularly a kind of define method of element field and device.

Background technology

In wireless local area network (WLAN) system, access point (Access Point, english abbreviation is AP) is periodically to being associated with the website broadcast beacon frame of oneself, and in beacon frame, carries some management information or control information.Website can be resolved the element field of the beacon frame receiving, and is obtaining after these management information or control information, and website will trigger corresponding action.

With traffic carrying capacity indication map (the Traffic Indication Map in beacon frame, english abbreviation is TIM) field is example, TIM field is to be used to refer to the website which has enable power saving function to have downlink data within the current beacon frame cycle, when these websites are resolved the TIM field in beacon frame, determine in the current beacon frame cycle and have after the downlink data of self, this website can be saved inquiry (Power Save Poll to access point transmitted power by up, english abbreviation is PS-Poll) frame, access point is receiving after PS-Poll frame to this website transmission downlink data.If in the current beacon frame cycle, the website of all AP of being associated with does not all have downlink data, the value of not carrying out TIM indication or indication is 0.

In prior art, at least there are the following problems: in some special scene, take sensor network as example, user's service period is very long, reach several hours or several days, now there will be the situation that all there is no downlink data in the whole beacon frame cycle, but in website uncertain current beacon frame, whether contain the data of oneself, check beacon frame so still need to wake up frequently; In 802.11ah scene, an AP may provide service for more than 6000 websites, for fear of the information collision between website, these websites is divided into multiple groups, and AP is take group as unit broadcast beacon frame.In such cases, belong in a website in certain group uncertain current beacon frame whether contain the data of oneself, check beacon frame so still need to wake up frequently.In above-mentioned two scenes, website need to be waken up frequently and be checked beacon frame, for the website of non-Power supply, can waste a large amount of electric weight.

Summary of the invention

A kind of define method and device of element field are provided, can solve the problem of the electric weight waste of the website of non-Power supply under special scenes, improve the efficiency of website.

First aspect, provides a kind of define method of element field, comprising:

For element field is added number of beacons or is added number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;

The beacon frame that carries described element field is broadcasted.

Optionally, described add number of beacons or add number of beacons and targeted sites for element field comprise: the event content that is triggered comprising when described element field is while being applied to all websites that are associated with access point AP, is that described element field is added number of beacons; The event content that is triggered comprising when described element field is while being applied to the particular station that is associated with AP, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.

Wherein, when only, for described element field is while adding described number of beacons, described element field can be followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail; When for described element field is while adding described number of beacons and described targeted sites, described element field can be followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.

Wherein, the event content that is triggered described in comprises: downlink data transmission and/or transmitting uplink data.

Wherein, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number (Identity, english abbreviation is ID) or medium access control (Media Access Control, english abbreviation is MAC) address.

Second aspect, the define method of same element field, comprising:

The component identification of element field number is redefined as element type identification number and daughter element identification number, and the represented content of element field after redefining is determined jointly by element type identification number and daughter element identification number;

The beacon frame that carries described element field is broadcasted.

In the possible implementation of the first, in the time including the multiple element field that belongs to identity element type in beacon frame, described multiple element field are placed under same element type identification number and are indicated as daughter element field.

In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.

The third aspect, provides a kind of definition device of element field, comprising:

Adding device, be used to element field to add number of beacons or add number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;

Radio unit, for broadcasting the beacon frame that carries described element field.

Optionally, described adding device comprises: first adds subelement, is while being applied to all websites that are associated with access point AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons; Second adds subelement, while being applied to the particular station that is associated with AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.

Wherein, to add subelement be described element field while adding described number of beacons when described first, and described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail; To add subelement be described element field while adding described number of beacons and described targeted sites when described second, and described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.

Wherein, the event content that is triggered described in comprises: downlink data transmission and/or transmitting uplink data.

Wherein, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.

Fourth aspect, provides a kind of definition device of element field, comprising:

Redefine unit, for the component identification of element field number being redefined into element type identification number and daughter element identification number, the represented content of element field after redefining is determined jointly by element type identification number and daughter element identification number;

Radio unit, for broadcasting the beacon frame that carries described element field.

In the possible implementation of the first, also comprise: indicating member, for in the time that beacon frame includes the multiple element field that belongs to identity element type, described multiple element field are placed under same element type identification number and are indicated as daughter element field.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, in the possible implementation of the second, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.

Compared with prior art, the embodiment of the present invention is by adding number of beacons or adding number of beacons and targeted sites for element field, and carry the beacon frame of this element field in wireless local area networks broadcast, website (terminal) is carried after this element field beacon frame receiving, resolve described element field and obtain number of beacons, and then can obtain be next time the triggered beacon frame number of cycles at institute interval of a certain event, thereby within the time interval of this beacon frame number of cycles, need not wake up continually and resolve beacon frame and pay close attention to this trigger event, only need behind beacon frame interval cycle time, wake up and resolve corresponding beacon frame, avoid website to resolve continually the power dissipation that beacon frame brings, reach the object of power saving.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The method flow diagram that Fig. 1 provides for the embodiment of the present invention one;

The method flow diagram that Fig. 2 provides for the embodiment of the present invention two;

The method flow diagram that Fig. 3 provides for the embodiment of the present invention three;

Element field structure chart after the expansion that Fig. 4 provides for the embodiment of the present invention three;

Element field structure chart after the expansion that Fig. 5 provides for the embodiment of the present invention three;

The method flow diagram that Fig. 6 provides for the embodiment of the present invention four;

The element field structure chart that Fig. 7 provides for the embodiment of the present invention four;

Fig. 8, Fig. 9 for the embodiment of the present invention four provide redefine after element field structure chart;

The apparatus structure schematic diagram that Figure 10, Figure 11 provide for the embodiment of the present invention five;

The transmitter architecture schematic diagram that Figure 12 provides for the embodiment of the present invention six;

The apparatus structure schematic diagram that Figure 13, Figure 14 provide for the embodiment of the present invention seven;

The transmitter architecture schematic diagram that Figure 15 provides for the embodiment of the present invention eight.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

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

Embodiment mono-

The present embodiment provides a kind of define method of element field, and as shown in Figure 1, described method comprises:

101, for element field is added number of beacons or add number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail.

102, the beacon frame that carries described element field is broadcasted.

Optionally, described add number of beacons or add number of beacons and targeted sites for element field comprise:

The event content that is triggered comprising when described element field is while being applied to all websites that are associated with access point AP, for described element field is added number of beacons;

The event content that is triggered comprising when described element field is while being applied to the particular station that is associated with AP, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.

Wherein, when only, for described element field is while adding described number of beacons, described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail;

When for described element field is while adding described number of beacons and described targeted sites, described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.

Wherein, the event content that is triggered described in comprises: downlink data transmission and/or transmitting uplink data.

Wherein, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.

Compared with prior art, the embodiment of the present invention is by adding number of beacons or adding number of beacons and targeted sites for element field, and carry the beacon frame of this element field in wireless local area networks broadcast, website (terminal) is carried after this element field beacon frame receiving, resolve described element field and obtain number of beacons, and then can obtain be next time the triggered beacon frame number of cycles at institute interval of a certain event, thereby within the time interval of this beacon frame number of cycles, need not wake up continually and resolve beacon frame and pay close attention to this trigger event, only need behind beacon frame interval cycle time, wake up and resolve corresponding beacon frame, avoid website to resolve continually the power dissipation that beacon frame brings, reach the object of power saving.

Embodiment bis-

The present embodiment provides a kind of define method of element field, and as shown in Figure 2, described method comprises:

201, the component identification of element field number is redefined into element type identification number and daughter element identification number, the represented content of element field after redefining is determined jointly by element type identification number and daughter element identification number.

202, the beacon frame that carries described element field is broadcasted.

Optionally, in the time including the multiple element field that belongs to identity element type in beacon frame, described multiple element field are placed under same element type identification number and are indicated as daughter element field.

Optionally, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.

Compared with prior art, the embodiment of the present invention is by redefining component identification number into element type identification number and daughter element identification number, thereby expand the actual use number of component identification number, and facilitate website to the parsing between the element field of same type, if website is not supported or the element field of a certain type of not enabled, so directly all elements field that belongs to this type all can be ignored, avoid resolving the power dissipation of bringing to each element field, reached the object of power saving.

Embodiment tri-

The present embodiment provides a kind of define method of element field, and as shown in Figure 3, described method comprises:

301, judge whether event corresponding to currentElement field is applied to the whole websites that are associated with AP.

If 302 are applied to the whole websites that are associated with AP, in element field, add number of beacons.

For example, as shown in Figure 4, in original element field structure, add number of beacons, add number of beacons to length and be triggered between event content, number of beacons can take 1 byte, number of beacons represents that website is receiving beacon frame under element field and occur to the event that is triggered the beacon frame number of cycles at institute interval, website receive after beacon frame interval how long just can response beacons frame in the indicated event that is triggered.Number of beacons is natural number, for example, and 0,1,2,3 etc.

For example, it is example take number of beacons=3, website is receiving after beacon frame, the element field of resolving in described beacon frame knows that number of beacons is 3, represent that all after date websites of 3 beacon frames need to respond the event of being triggered of element field, the so next beacon frame cycle, website just can carry out power down mode, by the time 3 beacon frame cycles wake up later again, the event of being triggered that beacon frame is comprised responds, in this flow process, website need not be waken up and be resolved beacon frame in each beacon frame cycle, 3 spent electric weight of beacon frame cycle are saved, for sensor network, user's service period is very long often, even reach several hours or several days, use number of beacons to indicate and can save a large amount of electric weight website.

Optionally, in conjunction with the embodiments two, in the time being described element field interpolation number of beacons, element field after redefining is followed successively by from field head to field tail: the content 1 of element type identification number, total length, daughter element identification number 1, length 1, number of beacons 1, daughter element ..., daughter element identification number n, length n, number of beacons n and daughter element content n, wherein, n is the number that belongs to the element field of identity element type.

If 303 are only applied to the part website that is associated with AP, in element field, add targeted sites and number of beacons.

Wherein, this step is only applied to the situation of the part website that is associated with AP mainly for the trigger event in beacon frame.

For example, as shown in Figure 5, in original element field structure, add targeted sites and number of beacons, described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.Wherein, number of beacons can take 1 byte, number of beacons represents that website is receiving beacon frame under element field and occur to the event that is triggered the beacon frame number of cycles at institute interval, website receive after beacon frame interval how long just can response beacons frame in the indicated event that is triggered.Number of beacons is natural number, for example, and 0,1,2,3 etc.Targeted sites can take one or more bytes, targeted sites is mainly by website group number, user ID or user's MAC Address composition, when AP only need part website to beacon frame in the event of being triggered that comprises of element field while responding, beacon frame to website broadcast packet containing targeted sites, website is in the time receiving beacon frame and be resolved to targeted sites part, can determine content that this beacon frame comprises be whether for self, if not for self, website just can be ignored this beacon frame so, and then again in conjunction with number of beacons just can realize to trigger event for the power-saving control of website.

Optionally, in conjunction with the embodiments two, in the time being described element field interpolation number of beacons and targeted sites, element field after redefining is followed successively by from field head to field tail: the content 1 of element type identification number, total length, daughter element identification number 1, length 1, targeted sites 1, number of beacons 1, daughter element ..., daughter element identification number n, length n, targeted sites n, number of beacons n and daughter element content n, wherein, n is the number that belongs to the element field of identity element type.

304, the beacon frame that carries amended element field is broadcasted.

Compared with prior art, the embodiment of the present invention according to beacon frame towards website situation be that element field is added number of beacons or added number of beacons and targeted sites, and carry the beacon frame of this element field in wireless local area networks broadcast, website is carried after this element field beacon frame receiving, resolve described element field and obtain number of beacons, and then can obtain be next time the triggered beacon frame number of cycles at institute interval of a certain event, thereby within the time interval of this beacon frame number of cycles, need not wake up continually and resolve beacon frame and pay close attention to this trigger event, only need behind beacon frame interval cycle time, wake up and resolve corresponding beacon frame, avoid website to resolve continually the power dissipation that beacon frame brings, reach the object of power saving.

Embodiment tetra-

The present embodiment provides a kind of define method of element field, and as shown in Figure 6, described method comprises:

401, the component identification in element field number is redefined.

For example, as shown in Figure 7, the form of existing element field comprises component identification number, length and event content three parts that are triggered, wherein, component identification is number for representing this element field is about which event, and length is for representing to change the shared data length of element field, and the event content that is triggered is for representing concrete event content, optionally, being triggered event content can be for transmitting uplink data, downlink data transmission or other similar trigger event etc.

Further, for the quantity of extensible element mark, component identification number can be divided into element type identification number and daughter element identification number two parts.A component identification number can comprise several daughter element identification numbers below, jointly determines a content that element is represented by element type identification number and daughter element identification number.

For example, amended form can be as shown in Figure 8, be respectively the content of element type identification number, total length, daughter element identification number, sub-length, daughter element from field head to field tail, wherein total length represents to start to the length of daughter element end of text from daughter element identification number, the length of sub-length mark daughter element content.Or form is as shown in Figure 9, be respectively the content of element type identification number, total length, daughter element identification number, daughter element from field head to field tail, wherein total length represents to start to the length of daughter element end of text from daughter element identification number.

It should be noted that, the above-mentioned method that redefines can be brought 2 benefits, on the one hand, because current total component identification number is 256, use to component identification number has very large restriction, the above-mentioned method that redefines to component identification number can greatly expand the number of component identification number, can be reached in theory 256 × 256 element field numberings; On the other hand, in current element field resolving, website is receiving after beacon frame, need to resolve the component identification of element field all in beacon frame number, whether relevant to self to confirm the content of this element field, this process has caused power dissipation.The above-mentioned method that redefines is grouped together the element field with same type, if the element field of a certain type is not supported or do not enabled to website, can be according to element type identification number by multiple element field Ignore Alls of this type, accelerate analyzing efficiency, and saved power.

Further, the compatibility issue of consideration and following agreement.The in the situation that of needs compatibility, element type identification number can be used as component identification number and use, and length is decided to be 1 byte (byte), then determines as required the length of daughter element identification number, for example, can be 1 byte; Do not needing compatible in the situation that, the length of the length of element type identification number and daughter element identification number can be set according to concrete needs.

402, the beacon frame that carries the element field after redefining is broadcasted.

Compared with prior art, the embodiment of the present invention is by redefining component identification number into element type identification number and daughter element identification number, thereby expand the actual use number of component identification number, and facilitate website to the parsing between the element field of same type, if website is not supported or the element field of a certain type of not enabled, so directly all elements field that belongs to this type all can be ignored, avoid resolving the power dissipation of bringing to each element field, reached the object of power saving.

Embodiment five

The present embodiment provides a kind of definition device 50 of element field, and as shown in figure 10, described device 50 comprises:

Adding device 51, be used to element field to add number of beacons or add number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;

Radio unit 52, for broadcasting the beacon frame that carries described element field.

Optionally, as shown in figure 11, described adding device 51 comprises:

First adds subelement 511, is while being applied to all websites that are associated with access point AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons;

Second adds subelement 512, while being applied to the particular station that is associated with AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.

Wherein, in the time that described first adds subelement 511 and add described number of beacons for described element field, described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail;

In the time that described second adds subelement 512 and add described number of beacons and described targeted sites for described element field, described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.

Wherein, the event content that is triggered described in comprises: downlink data transmission and/or transmitting uplink data.

Wherein, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.

Compared with prior art, the embodiment of the present invention is by adding number of beacons or adding number of beacons and targeted sites for element field, and carry the beacon frame of this element field in wireless local area networks broadcast, website (terminal) is carried after this element field beacon frame receiving, resolve described element field and obtain number of beacons, and then can obtain be next time the triggered beacon frame number of cycles at institute interval of a certain event, thereby within the time interval of this beacon frame number of cycles, need not wake up continually and resolve beacon frame and pay close attention to this trigger event, only need behind beacon frame interval cycle time, wake up and resolve corresponding beacon frame, avoid website to resolve continually the power dissipation that beacon frame brings, reach the object of power saving.

Embodiment six

The present embodiment provides a kind of transmitter 60, and as shown in figure 12, described transmitter 60 comprises:

Processor 61, be used to element field to add number of beacons or add number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;

Transmitter 62, for broadcasting the beacon frame that carries described element field.

Optionally, described processor 61 also for: the event content that is triggered comprising when described element field is while being applied to all websites that are associated with access point AP, is that described element field is added number of beacons; The event content that is triggered comprising when described element field is while being applied to the particular station that is associated with AP, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.

Wherein, in the time that described processor 61 adds described number of beacons for described element field, described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail; In the time that described processor 61 adds described number of beacons and described targeted sites for described element field, described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.

Wherein, the event content that is triggered described in comprises: downlink data transmission and/or transmitting uplink data.

Wherein, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.

Compared with prior art, the embodiment of the present invention is by adding number of beacons or adding number of beacons and targeted sites for element field, and carry the beacon frame of this element field in wireless local area networks broadcast, website (terminal) is carried after this element field beacon frame receiving, resolve described element field and obtain number of beacons, and then can obtain be next time the triggered beacon frame number of cycles at institute interval of a certain event, thereby within the time interval of this beacon frame number of cycles, need not wake up continually and resolve beacon frame and pay close attention to this trigger event, only need behind beacon frame interval cycle time, wake up and resolve corresponding beacon frame, avoid website to resolve continually the power dissipation that beacon frame brings, reach the object of power saving.

Embodiment seven

The present embodiment provides a kind of definition device 70 of element field, and as shown in figure 13, described device 70 comprises:

Redefine unit 71, for the component identification of element field number being redefined into element type identification number and daughter element identification number, the represented content of element field after redefining is determined jointly by element type identification number and daughter element identification number;

Radio unit 72, for broadcasting the beacon frame that carries described element field.

Further, as shown in figure 14, described device 70 also comprises: indicating member 73, when including when beacon frame the multiple element field that belongs to identity element type, is placed on described multiple element field under same element type identification number and indicates as daughter element field.

Wherein, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.

Compared with prior art, the embodiment of the present invention is by redefining component identification number into element type identification number and daughter element identification number, thereby expand the actual use number of component identification number, and facilitate website to the parsing between the element field of same type, if website is not supported or the element field of a certain type of not enabled, so directly all elements field that belongs to this type all can be ignored, avoid resolving the power dissipation of bringing to each element field, reached the object of power saving.

Embodiment eight

The present embodiment provides a kind of transmitter 80, and as shown in figure 15, described transmitter 80 comprises:

Processor 81, for the component identification of element field number being redefined into element type identification number and daughter element identification number, the represented content of element field after redefining is determined jointly by described element type identification number and described daughter element identification number;

Transmitter 82, for broadcasting the beacon frame that carries described element field.

Optionally, described processor 81 also for: in the time that beacon frame includes the multiple element field that belongs to identity element type, described multiple element field are placed under same element type identification number and are indicated as daughter element field.

Wherein, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.

Compared with prior art, the embodiment of the present invention is by redefining component identification number into element type identification number and daughter element identification number, thereby expand the actual use number of component identification number, and facilitate website to the parsing between the element field of same type, if website is not supported or the element field of a certain type of not enabled, so directly all elements field that belongs to this type all can be ignored, avoid resolving the power dissipation of bringing to each element field, reached the object of power saving.

The above-mentioned embodiment of the method providing can be provided the definition device of the element field that the embodiment of the present invention provides, and concrete function is realized the explanation referring in embodiment of the method, does not repeat them here.The define method of the element field that the embodiment of the present invention provides and device go for the mutual of access point in wireless local area network (WLAN) system and website, but are not limited only to this.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (16)

1. a define method for element field, is characterized in that, comprising:
For element field is added number of beacons or is added number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;
The beacon frame that carries described element field is broadcasted.
2. method according to claim 1, is characterized in that, described add number of beacons or add number of beacons and targeted sites for element field comprise:
The event content that is triggered comprising when described element field is while being applied to all websites that are associated with access point AP, for described element field is added number of beacons;
The event content that is triggered comprising when described element field is while being applied to the particular station that is associated with AP, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.
3. method according to claim 1, is characterized in that, when only, for described element field is while adding described number of beacons, described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail;
When for described element field is while adding described number of beacons and described targeted sites, described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.
4. according to the method described in claim 1-3 any one, it is characterized in that, described in the event content that is triggered comprise: downlink data transmission and/or transmitting uplink data.
5. according to the method described in claim 1-3 any one, it is characterized in that, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.
6. a define method for element field, is characterized in that, comprising:
The component identification of element field number is redefined as element type identification number and daughter element identification number, and the represented content of element field after redefining is determined jointly by described element type identification number and described daughter element identification number;
The beacon frame that carries described element field is broadcasted.
7. method according to claim 6, is characterized in that, in the time including the multiple element field that belongs to identity element type in beacon frame, described multiple element field is placed under same element type identification number and is indicated as daughter element field.
8. method according to claim 7, it is characterized in that, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.
9. a definition device for element field, is characterized in that, comprising:
Adding device, be used to element field to add number of beacons or add number of beacons and targeted sites, wherein, described number of beacons is used to indicate website and occurs to the event that is triggered from receiving beacon frame under described element field the beacon frame number of cycles at institute interval, and described element field is followed successively by component identification number, length and the event content that is triggered from field head to field tail;
Radio unit, for broadcasting the beacon frame that carries described element field.
10. the definition device of element field according to claim 9, is characterized in that, described adding device comprises:
First adds subelement, is while being applied to all websites that are associated with access point AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons;
Second adds subelement, while being applied to the particular station that is associated with AP for the event content that is triggered comprising when described element field, for described element field is added number of beacons and targeted sites, described targeted sites is used to indicate described particular station the described event content that is triggered is carried out to detection and response, the event content that is triggered described in ignoring of all the other websites outside described particular station.
The definition device of 11. element field according to claim 9, it is characterized in that, to add subelement be described element field while adding described number of beacons when described first, and described element field is followed successively by component identification number, length, number of beacons and the event content that is triggered from field head to field tail;
To add subelement be described element field while adding described number of beacons and described targeted sites when described second, and described element field is followed successively by component identification number, length, targeted sites, number of beacons and the event content that is triggered from field head to field tail.
12. according to the definition device of the element field described in claim 9-11 any one, it is characterized in that, described in the event content that is triggered comprise: downlink data transmission and/or transmitting uplink data.
13. according to the definition device of the element field described in claim 9-11 any one, it is characterized in that, the content of described number of beacons comprises: natural number; The content of described targeted sites comprises: website group number, user-association identify label number ID or medium access control MAC Address.
The definition device of 14. 1 kinds of element field, is characterized in that, comprising:
Redefine unit, for the component identification of element field number being redefined into element type identification number and daughter element identification number, the represented content of element field after redefining is determined jointly by described element type identification number and described daughter element identification number;
Radio unit, for broadcasting the beacon frame that carries described element field.
The definition device of 15. element field according to claim 14, is characterized in that, also comprises:
Indicating member, when including when beacon frame the multiple element field that belongs to identity element type, is placed on described multiple element field under same element type identification number and indicates as daughter element field.
The definition device of 16. element field according to claim 15, it is characterized in that, element field after redefining is followed successively by from field head to field tail: element type identification number, total length, daughter element identification number 1, length 1, until represent to the content n of daughter element identification number n, length n, daughter element, wherein, n is the element field total number that belongs to identity element type.
CN201210407258.4A 2012-10-23 2012-10-23 Definition method of element field and device CN103781153A (en)

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