CN107889189A - Beacon frame information method and apparatus - Google Patents

Beacon frame information method and apparatus Download PDF

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Publication number
CN107889189A
CN107889189A CN201610877411.8A CN201610877411A CN107889189A CN 107889189 A CN107889189 A CN 107889189A CN 201610877411 A CN201610877411 A CN 201610877411A CN 107889189 A CN107889189 A CN 107889189A
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CN
China
Prior art keywords
beacon
ap
beacon interval
sta
frame
Prior art date
Application number
CN201610877411.8A
Other languages
Chinese (zh)
Inventor
李卿卿
张�林
季标
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201610877411.8A priority Critical patent/CN107889189A/en
Publication of CN107889189A publication Critical patent/CN107889189A/en

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    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0203Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D70/00Techniques for reducing energy consumption in wireless communication networks

Abstract

This application discloses a kind of beacon frame information method and apparatus, belong to communication technical field.Methods described includes:Access point AP sends beacon frame according to the first beacon interval period, the value of beacon interval field in the beacon frame is the second beacon interval, first beacon interval is different from second beacon interval, wherein, the value of second beacon interval is used to indicate that the AP sends the cycle of the beacon frame to the site STA for receiving the beacon frame.The STA technical problem of roaming behavior can not be intervened by solving AP in correlation technique, and the STA effect of roaming behavior can be intervened by having reached AP.

Description

Beacon frame information method and apparatus

Technical field

The present invention relates to communication technical field, more particularly to a kind of beacon frame information method and apparatus.

Background technology

In WLAN (English:Wireless local area network, WLAN) in, website (English: Station, STA) can be with access point (English:Access point, AP) associate to be connected to network.

For STA in the case where being associated with the first AP, STA is monitoring the first AP dtr signal, and the 2nd AP signal When preferable, in order to improve the quality of wireless network of itself, the STA can go to associate with the first AP, be associated with the 2nd AP, realize unrestrained Trip.

Controlled however, whether STA is roamed by the STA oneself, AP can not intervene STA roaming behavior.

The content of the invention

This application provides a kind of beacon frame information method and apparatus.

First aspect, there is provided a kind of beacon frame information method, the beacon frame information method include:AP is according to the first beacon Sending to gap periods beacon frame, the value of the beacon interval field in the beacon frame that AP is sent is the second beacon interval, wherein, the One beacon interval is different from the second beacon interval, and the value of the second beacon interval is used for the STA instruction AP hairs for receiving the beacon frame Send the cycle of beacon frame.

The beacon frame information cycle and the reception condition of beacon frame that STA indicates generally according to beacon frame determine beacon frame Loss situation, when determining that the STA continuously loses the beacon frame of predetermined quantity, the STA can start to roam.Beacon is sent in AP The AP that is indicated in the actual cycle and beacon frame of frame send beacon frame cycle it is inconsistent in the case of, the STA that is associated with the AP The beacon frame loss situation determined is not inconsistent with beacon frame actual loss situation.For example, when the value of beacon interval field is less than letter When marking the actual transmission cycle of frame, the beacon LOF quantity that STA is determined is more than beacon frame actual loss quantity.For another example When the value of beacon interval field is revised as the second beacon interval more than the actual transmission cycle of beacon frame by AP, STA is determined The beacon LOF quantity gone out is less than beacon frame actual loss quantity.Therefore, the beacon interval word in the beacon frame that AP is sent When the value of section and the actual transmission cycle of beacon frame differ, AP realizes the intervention to STA roaming behaviors.

With reference in a first aspect, in the first realization of first aspect, sent in AP according to the first beacon interval period Before beacon frame, the beacon frame information method also includes:AP is when the amount of the AP frames cached reaches the first numerical value, by beacon frame Beacon interval field value be revised as less than beacon frame the actual transmission cycle value.

Because the transmission cycle of the STA associated with AP the beacon frames determined according to the value of beacon interval field is less than actual send out The cycle is sent, therefore STA can terminate dormancy in advance.Accordingly, some STA can send null frame after dormancy is terminated to AP, and AP will The corresponding data frame of caching feeds back to the STA for sending the null frame, so that the delay that STA receives data frame from AP reduces, It is the data cached durations of the STA to shorten AP, and then reduces the amount of the data frame cached in AP.

Realized with reference to the first of first aspect or first aspect, in second of realization of first aspect, the beacon frame Sending method also includes:When meeting to roam guiding conditions, the value of the beacon interval field in beacon frame is revised as being less than by AP Second beacon interval of the first beacon interval, or, the cycle that AP sends the AP beacon frame is revised as being more than between the second beacon Every the first beacon interval.

In the case that the value of beacon interval field in the beacon frame that AP is sent is less than the value of the first beacon interval, with the AP The beacon LOF quantity that the STA of association is determined is more than beacon frame actual loss quantity, causes the STA associated with the AP to roam Possibility to other AP improves.

With reference in the first implementation of first aspect, first aspect and second of implementation of first aspect Any one, in the third realization of first aspect, roaming guiding conditions include at least one of following:Associated with the AP STA quantity reaches second value;The link-quality for connecting the wire link of the AP is less than first threshold;The packet loss of the AP reaches To third value.

When roaming guiding conditions to reach second value with the AP STA associated quantity, due to the beacon of AP transmissions The value of beacon interval field in frame is less than the value of the first beacon interval, can cause to roam to other with the STA that the AP is associated AP possibility improves, therefore can reduce the quantity with the AP STA associated, reduces AP load.

It is less than first threshold or AP packet loss in roaming guiding conditions to connect the link-quality of the wire link of the AP When reaching third value, the value of the beacon interval field in the beacon frame sent due to AP is less than the value of the first beacon interval, can Improved with causing the STA associated with the AP to roam to other AP possibility, therefore the STA that can to roam to other AP Data traffic quality is improved.

Second of implementation of the first implementation, first aspect with reference to first aspect, first aspect and Any one in the third implementation of one side, in being realized at the 4th kind of first aspect, when STA signal intensity is low When Second Threshold, the value of the beacon interval field in beacon frame is revised as between the second beacon less than the first beacon interval by AP Every, or, the cycle for sending beacon frame is revised as the first beacon interval more than the second beacon interval by AP, and AP is by beacon frame Recipient address (English:Receiver address, RA) it is arranged to the address of the STA.

When AP sends beacon frame to the weaker STA of signal intensity, the value of the beacon interval field in the beacon frame is less than The value of first beacon interval so that after the STA receives the beacon frame, the beacon LOF quantity determined is more than beacon frame reality Quantity is lost on border, improves the possibility that the STA roams to the preferable AP of other signals.

Second of implementation of the first implementation, first aspect with reference to first aspect, first aspect and Any one in the third implementation of one side, in being realized at the 5th kind of first aspect, the beacon frame information method Also include:At the time of AP records each STA and goes to associate with the AP, will be reached with the AP numbers for going to associate in scheduled duration The STA of four numerical value is defined as frequently associating the STA of the AP, and the recipient address of beacon frame is defined as into the address of the STA;AP will The value of beacon interval field in beacon frame is revised as the second beacon interval more than the first beacon interval.

Recipient address in beacon frame is arranged to frequently associate to the STA of AP address, in AP by beacon frame In the case that the value of beacon interval field is revised as the second beacon interval more than the first beacon interval, the STA is receiving this AP possibility is roamed to after beacon frame to be reduced, and reduces the possibility that the STA is frequently roamed between the AP and other AP, together When reduce the possibilities of the frequent synchronous STA data of the AP and other AP.

A kind of second aspect, there is provided beacon frame information device.The beacon frame information device comprises at least a unit, often Individual unit is respectively used to realize the corresponding step in the beacon frame information method of above-mentioned first aspect.

A kind of third aspect, there is provided AP.The AP includes:Processor and wireless transceiver, the processor and the wireless receipts Hair device is used to realize the corresponding step in the beacon frame information method of above-mentioned first aspect.

Fourth aspect, there is provided a kind of computer-readable medium, the computer-readable medium are used to realize first aspect The instruction of beacon frame information method.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

The structural representation for the beacon frame information system that Fig. 1 one exemplary embodiments of the present invention provide;

The flow chart of the beacon frame information method provided in Fig. 2 one embodiment of the invention;

Fig. 3 is a kind of schematic diagram of the beacon LOF provided in one embodiment of the invention;

Fig. 4 is the schematic diagram of another beacon LOF provided in one embodiment of the invention;

Fig. 5 is the structural representation for the AP that an exemplary embodiment of the invention provides;

Fig. 6 is the block diagram for the beacon frame information device that one embodiment of the invention provides.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.

Fig. 1 is refer to, the structural representation of the beacon frame information system provided it illustrates an exemplary embodiment of the invention Figure.The beacon frame information system includes:AP 110 and at least one STA 120.

AP 110 sends beacon frame.STA 120 in the signal cover of the AP 110 can receive AP 110 The beacon frame of transmission.

STA 120 can be any wlan device, such as smart mobile phone, tablet personal computer, wearable device or multimedia Playback equipment etc..

Optionally, STA 120 can associated AP 110.

Optionally, above-mentioned beacon frame can be broadcast frame or unicast frame.

Usually, the beacon frame that the AP cycles send is broadcast frame, the recipient address (English in the beacon frame: Receiver address, RA) it is broadcast address.In the embodiment of the present invention, in order to individually intervene specific STA behavior, AP Can be send in the STA cycles be unicast frame beacon frame, the recipient address of the beacon frame is the address of the STA.Optionally, believe The address for marking the STA that recipient address limits in frame can be the medium education (English of the STA:medium access Control, MAC) address.

No matter beacon frame is broadcast frame or unicast frame, beacon frame includes beacon interval field, the letter that AP is sent every time The value of beacon interval field can be the same or different in mark frame.Wherein, the value of beacon interval field is used to indicate that the AP is sent out Send the transmission cycle of beacon frame.AP can be defined as by the value of the beacon interval field in beacon frame by receiving the STA of the beacon frame Send the transmission cycle of beacon frame.

Shown in Figure 2, it is the flow chart of the beacon frame information method provided in one embodiment of the invention.This reality Example is applied to be applied to come for example, the beacon frame information method bag in AP 110 as shown in Figure 1 in the beacon frame information method Include following steps:

Step 201, when the amount of frame of AP cachings reaches the first numerical value, AP is by the value of the beacon interval field in beacon frame It is revised as the second beacon interval less than the first beacon interval.

Wherein, the first beacon interval is the actual transmission cycle that AP sends beacon frame.Here the frame for the AP cachings said Amount can be the quantity of the frame of caching, or the data volume of the frame of caching.Alternatively, the first beacon interval is the second beacon The integral multiple at interval.

By the quantity of frame that caches of the amount of the frame of AP cachings, the first numerical value be 3000, the first beacon interval be 100 millis It is illustrated exemplified by second (ms), when the quantity of the frame of AP cachings reaches 3000, AP is by the beacon interval in beacon frame The value of field is revised as the second beacon interval less than the first beacon interval.

Amount using the frame of AP cachings is that the data volume of frame of caching, the first beacon interval as 100ms, the first numerical value are 512 Mbytes illustrate, when the data volume of the frame of AP cachings reaches 512 Mbytes, AP is by beacon interval field in beacon frame Value be revised as the second beacon interval less than the first beacon interval.

For example, above-mentioned second beacon interval is 50ms.

In actual applications, beacon frame can be broadcast frame or unicast frame.

In a kind of possible implementation, AP uniformly can send broadcast frame form to each STA associated with the AP Beacon frame, now AP the recipient address in beacon frame is arranged to broadcast address;The STA of the beacon frame is received by second Beacon interval is defined as the transmission cycle that AP sends beacon frame.

In alternatively possible implementation, STAs of the AP according to belonging to the frame and frame of caching, determine to meet unicast The STA of condition, AP are that the amount of the frame for the STA cachings for meeting unicast conditions is more than predetermined value, and AP is to the STA for meeting unicast conditions The beacon frame of unicast frame form is sent, now the recipient address in beacon frame is arranged to these and meets unicast conditions by AP STA address.

Recipient addresses of the STA in beacon frame determines whether to handle beacon frame.STA receives beacon frame Afterwards, when in the beacon frame recipient address be broadcast address, or during the address including the STA itself, the STA is carried out to beacon frame Processing.

STA determines the dormancy period of itself generally according to the value of the beacon interval field indicated in beacon frame.Traditional, AP The value of beacon interval field and the actual transmission cycle of AP transmission beacon frames are consistent in the beacon frame of transmission.Within a beacon frame Beacon interval field value be modified to the second beacon interval less than the first beacon interval in the case of, associated with AP After STA receives the beacon frame, it can be reduced according to the dormancy period that beacon interval field determines, such STA can wake up in advance To receive the beacon frame of AP transmissions in advance, and then can also be diminished according to the time delay of beacon frame from AP acquisition data frames, can be quick Reduce the amount of the STA cached in AP data frame in ground.

Optionally, in order that the STA to wake up can receive data frame from AP as soon as possible, STA continues one dormancy of dormancy After cycle, if the STA opens the beacon frame that reception antenna does not receive AP transmissions, the STA can also send null frame to AP, corresponding After AP receives the null frame, the STA of the transmission of caching null frame data frame can be sent to the STA.

Step 202, when meeting to roam guiding conditions, the value of beacon interval field is revised as being less than between the first beacon by AP Every the second beacon interval, or, the cycle for sending beacon frame is revised as between the first beacon more than the second beacon interval by AP Every.

Wherein, it can be to reach second value with the AP STA associated quantity to roam guiding conditions, can also be connection The link-quality of the wire link of the AP is less than first threshold, can also be that AP detects that packet loss reaches third value etc..The One beacon interval is the integral multiple of the second beacon interval.

Optionally, AP is detecting the CRC of the packet received from wire link (English:cyclic Redundancy check, CRC) error rate when reaching first threshold, assert that the link-quality of AP connection wire links is less than First threshold, judge to meet roaming guiding conditions.

The quantity for the packet that AP receives from wire link it is excessively huge, beyond AP disposal ability when, can send out Raw congestion causes data-bag lost.When AP detects that packet loss reaches third value, judge to meet roaming guiding conditions.

When the second beacon interval is less than the first beacon interval, the AP transmission beacons that the STA of beacon frame is determined are received The cycle of frame is less than the AP actual cycles for sending beacon frame.The STA according to the transmission cycle of the beacon frame indicated in beacon frame with And the reception condition of beacon frame, the beacon LOF quantity determined are more than the actual loss quantity of beacon frame.As shown in figure 3, First beacon interval is 100ms, and the second beacon interval is 50ms, with arrow mark in Fig. 3 (1) at the time of AP sends beacon frame Go out, AP that STA is determined is marked at the time of sending beacon frame in Fig. 3 (2) with arrow, at the time of STA receives beacon frame Fig. 3 is marked in (3) with arrow.STA is after 0ms receives beacon frame, when AP loses in the 100ms beacon frame sent During mistake, STA determines 50ms, 100ms and 150ms beacon LOF after 200ms receives beacon frame, Therefore STA determines continuously to lost three beacon frames.Namely the beacon LOF quantity that STA assert is more than actually losing for beacon frame Lose quantity.

STA will be considered that STA accesses AP letter when the quantity for the beacon frame for determining continuously to lose reaches predetermined threshold Number intensity is weak, can now roam to other AP.Therefore, it is less than the first beacon interval in the value of the beacon interval field of beacon frame When, because the quantity of the beacon frame of the STA continuous loss determined is more than beacon frame actual loss quantity, determined so as to improve STA Beacon frame continuously lose quantity and reach the possibility of predetermined threshold, namely improve the STA and roam to possibility on other AP Property.

Similar, the beacon frame that AP is sent can be broadcast frame or unicast frame.

Step 203, when STA signal intensity is less than Second Threshold, the value of beacon interval field is revised as being less than by AP Second beacon interval of the first beacon interval, or, the cycle for sending beacon frame is revised as the more than the second beacon interval One beacon interval, the recipient address of beacon frame are the address of the STA.

Wherein, signal intensity can be received signal strength (English:received signal strength Indication, RSSI), the first beacon interval is the integral multiple of the second beacon interval.

In general, when STA signal intensity is relatively low, show that STA cannot be serviced preferably under the AP of association, because This now AP can be sent to by adjustment the STA beacon frame the beacon interval field sent in cycle or beacon frame, draw The relatively low STA of signal intensity is led to roam away faster.

When actually realizing, AP pairs is monitored with the AP STA associated signal intensity, when a certain STA signal intensities During less than Second Threshold, AP sends the beacon frame that recipient address is the STA addresses, and beacon frame now is unicast frame.

It is 100ms to illustrate using Second Threshold as 20dBm, the first beacon interval.STA1 and STA 2 accesses AP letter Number intensity is 10dBm, and now the second beacon interval can be defined as 50ms by AP, namely AP is by the beacon interval word in beacon frame The value of section is arranged to 50ms.The beacon frame that AP sends the address that recipient address is STA1 every 100ms, sends every 100ms Recipient address is the beacon frame of STA 2 address.After STA1 receives the beacon frame for the address that recipient address is STA 1, The possibility that the STA1 roams to other AP improves;, should after STA2 receives the beacon frame for the address that recipient address is STA 2 The possibility that STA2 roams to other AP improves.

Step 204, when the frequent associated APs of STA, the value of beacon interval field is revised as being more than the first beacon interval by AP The second beacon interval, the recipient address of beacon frame is the address of the STA.

Wherein, the second beacon interval is the integral multiple of the first beacon interval.

At the time of AP records each STA and goes to associate with the AP, will be reached in scheduled duration with the AP numbers for going to associate The STA of four numerical value is defined as frequently associating the STA of the AP., will be predetermined or AP is at the time of record each STA and associated with the AP The STA for reaching the 4th numerical value in duration with the AP numbers associated is defined as frequently associating the STA of the AP.

After the STA receives the beacon frame, the possibility that the STA roams to other AP improves.

Optionally, AP can will receive at the time of going association request of STA transmissions, be designated as the STA and go what is associated with the AP Moment.It is similar, at the time of AP can be by the association request for receiving STA transmissions, at the time of recording the STA and associated with the AP.

When the frequent associated APs of STA, show the jitter of the STA, when the STA is frequently roamed between different AP When, need the frequently synchronous data with the STA between these AP, therefore STA data are frequently carried out between AP in order to reduce The value of beacon interval field is revised as the second beacon interval more than the first beacon interval by synchronous possibility, AP.

When the value of beacon interval field in beacon frame to be revised as to the second beacon interval more than the first beacon interval, For STA after the beacon frame is received, the beacon frame information cycle that STA is determined is more than the actual transmission week that AP sends beacon frame Phase, so that the quantity for the loss beacon frame that STA is determined is less than the quantity of the beacon frame of actual loss, and then STA is delayed Roaming, reduce the possibility of STA roamings.

For example, Fig. 4 is referred to, the first beacon interval is 50ms, and the second beacon interval is 50ms, and AP sends beacon frame At the time of marked in Fig. 4 (1) with arrow, referring still to Fig. 4 (1) at the time of AP that STA is determined sends beacon frame.Believe in AP In the case that the value of mark interval field is revised as 100ms, with arrow in Fig. 4 (2) at the time of the AP that STA is determined sends beacon frame Leader goes out, and is marked at the time of STA receives beacon frame in Fig. 4 (3) with arrow.That is, STA receives beacon frame in 0ms Afterwards, when AP loses in 50ms, 100ms, 150ms beacon frame sent, STA 200ms receive beacon frame it Afterwards, 100ms beacon LOF is determined.That is, the beacon LOF quantity that STA assert is less than the actual loss of beacon frame Quantity.

Step 205, AP sends beacon frame according to the first beacon interval period.

It should be noted that AP, when it is the beacon frame of the STA to be individually for any STA transmission recipients address, AP will not Stop sending the beacon frame of broadcast frame form.Before the STA goes to associate with the AP, the AP is according to the first beacon interval period Send the beacon frame that recipient address is the STA.In addition, the beacon that the recipient address that the STA receives AP transmissions is the STA After frame, the STA will not be handled recipient address for the beacon frame of broadcast address again.

In summary, beacon frame information method provided by the invention, AP according to the first beacon interval period by sending Beacon frame, the value of beacon interval field in the beacon frame that AP is sent be the second beacon interval, wherein, the first beacon interval and the Two beacon intervals are different, and the value of the second beacon interval is used for the cycle that beacon frame is sent to the STA instructions AP for receiving the beacon frame; Because the reception condition in the STA beacon frame information cycles indicated generally according to beacon frame and beacon frame determines the loss of beacon frame Situation, then it is not inconsistent with the beacon frame loss situation that the AP STA associated are determined and beacon frame actual loss situation, the STA overflows Swim to other AP possibility and also change therewith, solve the problems, such as that AP can not intervene STA roaming behavior in correlation technique, reach The effect for the roaming behavior for being associated with STA can be intervened by having arrived AP.

Fig. 5 is refer to, the AP provided it illustrates an exemplary embodiment of the invention structural representation.The AP includes: Processor 51 and wireless transceiver 52.

Processor 51 includes one or more than one processing core, and processor 51 passes through runs software program and mould Block, so as to perform various function application and data processing.

Wireless transceiver 52 is used to send beacon frame, and wireless transceiver 52 is additionally operable to wireless to STA transmissions are associated with the AP Frame, wireless transceiver 52 are additionally operable to receive the radio frames for associating STA transmissions with the AP.

Optionally, wireless transceiver 52 includes media access controller (English:medium access controller)、 Baseband chip, radio-frequency module, power amplifier and antenna.These devices in wireless transceiver can be it is independent can also be by Same chip is realized.In addition, some or all of these devices can also integrate within a processor.

Optionally, the AP also includes network interface 53, and network interface 53 can be Ethernet network interface, or wired network Mouthful, network interface 53 is used to connect wire link.

Optionally, the AP also includes memory 54.Memory 54 is connected with processor 51, such as, memory 54 can lead to The modes such as bus are crossed with processor 51 to be connected;Memory 54 can be used for storage software program and module.

Optionally, memory 54 can be by any kind of volatibility or non-volatile memory device or combinations thereof Realize, such as static RAM (English:Static random access memory, SRAM), electric erasable can be compiled Journey read-only storage (English:Electrically erasable programmable read-only memory, EEPROM), Erasable Programmable Read Only Memory EPROM (English:Erasable programmable read only memory, EPROM), programmable read only memory (English:Programmable read only memory, PROM), read-only storage (English:Read only memory image, ROM), magnetic memory, flash memory, disk or CD.

It will be understood by those skilled in the art that the structure of the AP shown in Fig. 5 does not form the restriction to AP 110, can With including than illustrating more or less parts, either combining some parts or different parts arrangement.

Fig. 6 is refer to, the block diagram of the beacon frame information device provided it illustrates one embodiment of the invention.The beacon frame Dispensing device can pass through all or part being implemented in combination with as AP of software, hardware or both.The beacon frame is sent out Device is sent to include:Transmitting element 610 and execution unit 620.

Transmitting element 610, for realizing the function of above-mentioned steps 205.

Execution unit 620, for realizing at least one of above-mentioned steps 201, step 202, step 203 and step 204 Function.

When actually realizing, the function of transmitting element 610 can be realized by AP processor using wireless transceiver, perform The function of unit 620 can be realized by AP processor.Optionally, AP sets letter when generating beacon frame by AP processor Mark the value of beacon interval field and recipient address in frame.When processor repairing changes the transmission cycle of beacon frame, pass through modification The timing length of timer is realized in media access controller.At the end of the timing length of timer, media access controller The values of other fields that the value of beacon interval field, recipient address and processor are set is obtained from processor to generate beacon Frame, and send beacon frame using baseband chip, radio-frequency module, power amplifier and antenna.

It should be noted that:Above-described embodiment provide beacon frame information device and AP when sending beacon frame, only more than The division progress of each functional module is stated for example, in practical application, can be as needed and by above-mentioned function distribution by difference Functional module complete, i.e., AP internal structure is divided into different functional modules, with complete it is described above whole or Partial function.In addition, beacon frame information device and the embodiment of the method for beacon frame information method that above-described embodiment provides belong to Same design, its specific implementation process refer to embodiment of the method, repeated no more here.

The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.

One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..

The preferable embodiment of the present invention is the foregoing is only, but protection scope of the present invention is not limited thereto, Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims It is defined.

Claims (18)

  1. A kind of 1. beacon frame information method, it is characterised in that methods described includes:
    Access point AP sends beacon frame according to the first beacon interval period, and the value of the beacon interval field in the beacon frame is Second beacon interval, first beacon interval is different from second beacon interval, wherein, the value of second beacon interval For indicating that the AP sends the cycle of the beacon frame to the site STA for receiving the beacon frame.
  2. 2. according to the method for claim 1, it is characterised in that methods described also includes:
    When the amount of the frame of AP cachings reaches the first numerical value, the value of the beacon interval field is revised as being less than by the AP Second beacon interval of first beacon interval.
  3. 3. method according to claim 1 or 2, it is characterised in that methods described also includes:
    When meeting to roam guiding conditions, the value of the beacon interval field is revised as being less than between first beacon by the AP Every second beacon interval, or, the cycle for sending the beacon frame is revised as being more than second beacon by the AP First beacon interval at interval.
  4. 4. according to the method for claim 3, it is characterised in that the roaming guiding conditions include at least one of following:
    Reach second value with the AP STA associated quantity;
    The link-quality for connecting the wire link of the AP is less than first threshold;
    The packet loss of the AP reaches third value.
  5. 5. according to any described method in Claims 1-4, it is characterised in that methods described also includes:
    When STA signal intensity is less than Second Threshold, the value of the beacon interval field is revised as less than described by the AP Second beacon interval of first beacon interval, or, the cycle for sending the beacon frame is revised as being more than institute by the AP First beacon interval of the second beacon interval is stated, the recipient address of the beacon frame is the address of the STA.
  6. 6. according to any described method in claim 1 to 5, it is characterised in that methods described also includes:
    When STA frequently associates the AP, the value of the beacon interval field is revised as being more than first beacon by the AP Second beacon interval at interval, the recipient address of the beacon frame are the address of the STA, frequently associate the AP's STA reaches the 4th numerical value in scheduled duration with the AP numbers for going to associate.
  7. 7. a kind of beacon frame information device, it is characterised in that described device includes:
    Transmitting element, for sending beacon frame according to the first beacon interval period, the beacon interval field in the beacon frame Value be the second beacon interval, first beacon interval is different from second beacon interval, wherein, between second beacon Every value be used for the cycle that the beacon frame is sent to the site STA instruction AP for receiving the beacon frame.
  8. 8. device according to claim 7, it is characterised in that described device also includes:
    Execution unit, when the amount of the frame for being cached in the AP reaches the first numerical value, by the beacon interval in the beacon frame The value of field is revised as second beacon interval less than first beacon interval.
  9. 9. the device according to claim 7 or 8, it is characterised in that
    The execution unit, it is additionally operable to, when meeting to roam guiding conditions, the value of the beacon interval field is revised as being less than Second beacon interval of first beacon interval, or, the cycle for sending the beacon frame is revised as more than described First beacon interval of second beacon interval.
  10. 10. device according to claim 9, it is characterised in that the roaming guiding conditions include at least one of following:
    Reach second value with the AP STA associated quantity;
    The link-quality for connecting the wire link of the AP is less than first threshold;
    The packet loss of the AP reaches third value.
  11. 11. according to any described device in claim 7 to 10, it is characterised in that
    The execution unit, it is additionally operable to, when STA signal intensity is less than Second Threshold, the value of the beacon interval field be repaiied Second beacon interval less than first beacon interval is changed to, or, the cycle for sending the beacon frame is revised as More than first beacon interval of second beacon interval, the recipient address of the beacon frame is the address of the STA.
  12. 12. according to any described device in claim 7 to 11, it is characterised in that
    The execution unit, it is additionally operable to, when STA frequently associates the AP, the value of the beacon interval field is revised as being more than Second beacon interval of first beacon interval, the recipient address of the beacon frame are the address of the STA, frequently The STA for associating the AP reaches the 4th numerical value in scheduled duration with the AP numbers for going to associate.
  13. A kind of 13. access point AP, it is characterised in that the AP includes processor and wireless transceiver, wherein,
    The processor, for sending beacon frame, the beacon according to the first beacon interval period with the wireless transceiver The value of beacon interval field in frame is the second beacon interval, and first beacon interval is different from second beacon interval, Wherein, the value of second beacon interval is used to indicate that the AP sends the beacon to the site STA for receiving the beacon frame The cycle of frame.
  14. 14. AP according to claim 13, it is characterised in that
    The processor, it is additionally operable to when the amount of the frame of AP cachings reaches the first numerical value, by the beacon interval field Value is revised as second beacon interval less than first beacon interval.
  15. 15. the AP according to claim 13 or 14, it is characterised in that
    The processor, it is additionally operable to, when meeting to roam guiding conditions, the value of the beacon interval field is revised as to be less than institute Second beacon interval of the first beacon interval is stated, or, the cycle for sending the beacon frame is revised as to be more than described the First beacon interval of two beacon intervals.
  16. 16. AP according to claim 15, it is characterised in that the roaming guiding conditions include at least one of following:
    Reach second value with the AP STA associated quantity;
    The link-quality for connecting the wire link of the AP is less than first threshold;
    The packet loss of the AP reaches third value.
  17. 17. according to any described AP in claim 13 to 16, it is characterised in that
    The processor, it is additionally operable to when STA signal intensity is less than Second Threshold, the value of the beacon interval field is changed For second beacon interval less than first beacon interval, or, the cycle for sending the beacon frame is revised as greatly In first beacon interval of second beacon interval, the recipient address of the beacon frame is the address of the STA.
  18. 18. according to any described AP in claim 13 to 17, it is characterised in that
    The processor, it is additionally operable to when STA frequently associates the AP, the value of the beacon interval field is revised as to be more than institute Second beacon interval of the first beacon interval is stated, the recipient address of the beacon frame is the address of the STA, is frequently closed The STA for joining the AP reaches the 4th numerical value in scheduled duration with the AP numbers for going to associate.
CN201610877411.8A 2016-09-30 2016-09-30 Beacon frame information method and apparatus CN107889189A (en)

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