CN103796277B - Method, system and device for indicating beacon frame sending and sending beacon frame - Google Patents
Method, system and device for indicating beacon frame sending and sending beacon frame Download PDFInfo
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- CN103796277B CN103796277B CN201210418682.9A CN201210418682A CN103796277B CN 103796277 B CN103796277 B CN 103796277B CN 201210418682 A CN201210418682 A CN 201210418682A CN 103796277 B CN103796277 B CN 103796277B
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Abstract
The invention relates to the field of wireless communication, particularly relates to a method, a system and a device for indicating beacon frame sending and sending a beacon frame, and aims at solving problems that conflicts and retreats are liable to occur between the beacon frames sent by APs and between the beacon frame and a data frame, and network access time of a terminal is increased caused by enhancement of a sending period of the beacon frame for avoiding the conflicts. The embodiment of the invention adopts that an idle time segment within one sending period of the beacon frame of the APs is confirmed; beacon frame time points corresponding to partial or all the APs are confirmed in the confirmed idle time segment, and the corresponding beacon frame time points of different APs are different; and the corresponding beacon frame time points are configured for the partial or all the APs so as to indicate the method for sending the beacon frame for the APs after the corresponding beacon frame time points are reached. Therefore, problems that occurrence of the conflicts between the frames or increasing of access time of the terminal are avoided, interference between the beacon frames and interference between the beacon frame and the data frame are reduced and stability and reliability of beacon frame signals are enhanced.
Description
Technical field
The present invention relates to wireless communication field, the method for more particularly, to a kind of instruction beacon frame information and transmission beacon frame,
System and device.
Background technology
WLAN (wireless local area networks；Wlan main transmission three types in)
Frame: Frame, control frame and management frame.Frame is mainly used in data transfer, and control frame is mainly used in controlling for medium
Access, management frame (as beacon frame) is used for exchanging management information.Wherein Frame is identical with the load mode of management frame.
Wireless access points (access point；Ap) each wireless network clients is connected together, then will
Wireless network access network based on ethernet.Ap meeting periodic broadcasting beacon frame, wireless terminal finds network by intercepting beacon frame.But occupying
Scenes ap such as people area, Exhibition Centers, stadiums are very intensive, and the expense of the management frame of wlan is very big.
The cycle of ap is 100ms, within a cycle time, has multiple ap and sends beacon frame, if the beacon between ap
Frame sends time phase difference and is less than duration needed for beacon frame information, will result in conflict, the beacon frame sending afterwards can be kept out of the way previous
The beacon frame of ap, until when the beacon frame information of previous ap completes, after channel idle, a rear beacon frame just can be sent, by
The difference of the timestamp between the beacon frame of this two ap is fixed, will result in each cycle can occur fixation beacon frame
Between conflict, easily jitter occurs, the problems such as going offline.
Further, since Frame is identical with the load mode of management frame, but the priority of management frame is higher than normal data frame.
Therefore, under the intensive scene of ap, in the ap cycle, the management frame (beacon frame) of all ap can be randomly dispersed in a cycle
In time range, the lasting conflict of Frame can be caused and keep out of the way, increase interference, affect system entire throughput.
In prior art, the main method of the employing that solves the above problems is to improve the transmission cycle of beacon frame, but such meeting
Increase the access duration of terminal, extend the time of terminal searches network.
Content of the invention
The embodiment of the present invention provides a kind of instruction beacon frame information and the mthods, systems and devices sending beacon frame, to solve
The problem that certainly in prior art, the network insertion duration of terminal is extended.
Embodiments provide a kind of method of instruction beacon frame information, the method includes:
Determine mono- free time section sending in the beacon frame period of wireless access points ap；In the described free time determining
Part or all of ap corresponding beacon frame time point is determined, wherein different ap corresponding beacon frame time points are different in time period；
Configure corresponding beacon frame time point for part or all of ap, instruction ap sends letter after the time point of corresponding beacon frame reaches
Mark frame.
Embodiments provide a kind of method sending beacon frame, the method includes:
Receive part or all of ap and configure corresponding beacon frame time point；According to receiving, part or all of ap configuration is right
The beacon frame time point answered sends beacon frame.
Embodiments provide a kind of Access Control unit ac of instruction beacon frame information, this Access Control unit bag
Include:
Determine mono- free time section sending in the beacon frame period of wireless access points ap；In the described free time determining
Part or all of ap corresponding beacon frame time point is determined, wherein different ap corresponding beacon frame time points are different in time period；
Transmitting portion or whole ap corresponding beacon frame time point.
Embodiments provide a kind of wireless access points ap sending beacon frame, this ap includes:
Receive part or all of ap and configure corresponding beacon frame time point；According to receiving, part or all of ap configuration is right
The beacon frame time point answered sends beacon frame.
Embodiments provide a kind of device of instruction beacon frame information, this device includes:
Free time section determining module: for determining mono- free time sending in the beacon frame period of wireless access points ap
Time period；
Beacon frame time point determining module: for determining that in the described free time section determining part or all of ap corresponds to
Beacon frame time point, wherein different ap corresponding beacon frame time points are different；
Configuration module: for configuring corresponding beacon frame time point for part or all of ap, ap is in corresponding beacon for instruction
The time point of frame sends beacon frame after reaching.
Embodiments provide a kind of device sending beacon frame, this device includes:
Receiver module: be used for receiving the part or all of ap corresponding beacon frame time point of configuration；
Sending module: receive the corresponding beacon frame time point of part or all of ap configuration for basis and send beacon frame.
The embodiment of the present invention is using the free time section determining in mono- transmission beacon frame period of wireless access points ap；
Determine part or all of ap corresponding beacon frame time point in the described free time section determining, the wherein different corresponding letters of ap
Mark frame time point is different；For part or all of ap configure corresponding beacon frame time point, instruction ap corresponding beacon frame when
Between point reach after send beacon frame method.Avoid due to ap quantity more, between the beacon frame that ap sends, beacon frame and number
According to easily clashing between frame and keeping out of the way, signal can be caused to disturb, the situation of jitter, and avoid prior art
In, in order to reduce between beacon frame, conflicting between beacon frame and Frame, improve the beacon frame information cycle, cause terminal
Accessing duration increases, the problem of the time lengthening of terminal searches network.
Brief description
Fig. 1 is a kind of schematic flow sheet of the method for instruction beacon frame information in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the time point determining the corresponding beacon frame of whole ap in the embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the concrete grammar indicating beacon frame information in the embodiment of the present invention；
Fig. 4 is a kind of schematic flow sheet of the method sending beacon frame in the embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of the device of instruction beacon frame information in the embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of the device sending beacon frame in the embodiment of the present invention；
The signal that Fig. 7 additionally provides a kind of instruction beacon frame information for the embodiment of the present invention and sends the system of beacon frame
Figure.
Specific embodiment
The embodiment of the present invention is using the free time section determining in mono- transmission beacon frame period of wireless access points ap；
Determine part or all of ap corresponding beacon frame time point in the described free time section determining, the wherein different corresponding letters of ap
Mark frame time point is different；For part or all of ap configure corresponding beacon frame time point, instruction ap corresponding beacon frame when
Between point reach after send beacon frame method.Avoid due to ap quantity more, between the beacon frame that ap sends, beacon frame and number
According to easily clashing between frame and keeping out of the way, signal can be caused to disturb, the situation of jitter, and avoid prior art
In, in order to reduce between beacon frame, conflicting between beacon frame and Frame, improve the beacon frame information cycle, cause terminal
Accessing duration increases, and the problem of the time lengthening of terminal searches network decreases between beacon frame, between beacon frame data frame
Interference, improve stability and the reliability of beacon frame signal.
Whole signal ap being capable of mutual perception transmitting in one Access Control unit ac are referred to as the own ap of this ac.
One Access Control unit ac can contain multiple frequencies, and each frequency has several own ap, and the embodiment of the present invention is with one
It is described as a example the whole own ap of one frequency of individual ac, own ap is referred to as ap.
With reference to Figure of description, the embodiment of the present invention is described in further detail.
As shown in figure 1, being a kind of method of instruction beacon frame information in the embodiment of the present invention, comprising:
Step 101: Access Control unit ac determines mono- free time sending in the beacon frame period of wireless access points ap
Time period；
Step 102:ac determines part or all of ap corresponding beacon frame time point in the free time section determining, wherein
The corresponding beacon frame time point of different ap is different；
Step 103:ac is that part or all of ap configures corresponding beacon frame time point, and ap is in corresponding beacon frame for instruction
Time point sends beacon frame after reaching.
Wherein, in step 101, ac determines mono- free time section sending in the beacon frame period of ap, comprising: of ap
Send the cycle of beacon frame, may have several free time sections, the length of each free time section may differ, and can select
Any one free time section sends the time period of beacon frame as ap part or all of in ac, it is preferred that one is sent letter
In the mark frame period, maximum free time section sends the time period of beacon frame as part or all of ap.Wherein, free time section
Refer to, do not send any frame within this time period, including not sending beacon frame.
If a free time section cannot send the beacon frame of whole ap, one or more free times can be determined again
Duan Zuowei residue ap sends the time period of beacon frame, and the one or more free time sections wherein determining again can be in the sky determining
Before the not busy time period it is also possible to determine free time section after.
In step 102, in the free time section determining, determine that part or all of ap corresponding beacon frame time point includes:
Determine center ap first, the beacon frame time point of ap centered on the start time point of the free time section determining is configured, then
Determine that other ap send the time point of beacon frame according to center ap, concrete grammar is as follows.
The determination of center ap: in the ap composition set needing to distribute beacon frame time point, each ap can be perceived
The quantity of the transmission signal of other ap is ranked up, be possible to perceive the most ap of transmission signal quantity of other ap as in
Heart ap.
According to center ap, other ap are grouped: by center ap, center ap can perceive transmission signal ap, with
And the ap of the transmission signal of center ap can be perceived form a central. set, and each ap in this group can be perceived transmission signal
Ap, and can perceive in other ap outside this group the transmission signal of at least one of this group ap ap composition one special
Determine group.If now also having ungrouped ap, by set new for all ap compositions in all ungrouped ap and specific group, and
Specific group is deleted, new set determines a center ap.By the center ap in new set, the center ap energy in new set
Enough perceive the ap of transmission signal, and another center of ap composition that the transmission signal of center ap in new set can be perceived
Group, and each ap in this group can be perceived in the ap of transmission signal, and other ap outside this group and can perceive
The ap of the transmission signal of at least one of this group ap forms a specific group.If now also having ungrouped ap, repeat institute
Form new set by all ap in ungrouped ap and specific group, delete specific group, and be determined in new set
Perceive the most center ap of the transmission signal quantity of other ap, return center ap, center ap can perceive transmitting letter
Number ap, and can perceive center ap transmission signal ap form a central. set step.
After the completion of all being needed the ap distributing beacon frame time point to be grouped, needs judge that the time period of the free time determining is
Duration needed for the no corresponding beacon frame of whole ap not less than transmission；The time period of the wherein free time of determination is less than and sends all
The required duration of the corresponding beacon frame of ap, determines that the method for the time point of the corresponding beacon frame of whole ap has two kinds, divides below
It is not introduced.
Determine the method one of the time point of the corresponding beacon frame of whole ap:
Taking the free time section that the free time section determining is maximum in the transmission beacon frame period as a example, calculate and send
All required durations of the corresponding beacon frame of ap.
Send required duration=(the interval frame of the duration+priority of a beacon frame of the corresponding beacon frame of whole ap
Sifs) n, wherein n are the quantity of whole ap；Or
Send required duration=(the interval frame of the duration+priority of a beacon frame of the corresponding beacon frame of whole ap
Sifs/2) n, wherein n are the quantity of whole ap.
Whether the time period of free time judging maximum is not less than the required duration sending the corresponding beacon frame of whole ap；If
The time period of maximum free time is not less than the required duration sending the corresponding beacon frame of whole ap, and ac is just according to the order of packet
Distribute corresponding beacon frame time point for the whole ap in every group；If the time period of the free time of maximum is less than sends whole ap correspondences
Beacon frame required duration, then calculate maximum idle time can send ap beacon frame quantity, ac is just according to packet
Order be that part or all of ap in every group distributes corresponding beacon frame time point；Ac redefines other free times again
Section, returns the step judging whether the time period of free time is not less than the required duration sending the corresponding beacon frame of whole ap.Its
In, the beacon frame of the ap of ap preferential dispatching centre group, after the completion of whole beacon frame information of central. set ap, retransmit specific group ap
Beacon frame.
As shown in Fig. 2 after ac is grouped to whole ap, generating three packets: the first central. set, the second central. set altogether
And specific group.Ac passes through to be calculated, and the beacon frame information of whole ap is needed 25ms.Meanwhile, ac determines a transmission
Maximum idle time section in the beacon frame period is 15ms.Now maximum idle time section is less than the beacon frame information of whole ap
Duration, then using the starting point of maximum idle time section as the first central. set center ap send beacon frame starting point, and according to point
Group order, determines the ap corresponding beacon frame time point of the first central. set, the second central. set and specific group successively；When by second
After the completion of 3rd ap corresponding beacon frame time point of heart group determines, remaining maximum idle time section is less than an ap
The duration of corresponding beacon frame, the 4th ap of the second central. set is marked；Ac determines a free time section again, will again
The starting point of the free time section determining as the time point of the 4th corresponding beacon frame of ap of the second central. set, and according to packet
Sequentially, continue to determine remaining ap corresponding beacon frame time point.
Determine the method two of the time point of the corresponding beacon frame of whole ap:
Taking the free time section that the free time section determining is maximum in the transmission beacon frame period as a example, calculate and send
All required durations of the corresponding beacon frame of ap.
Send required duration=(the interval frame of the duration+priority of a beacon frame of the corresponding beacon frame of whole ap
Sifs) n, wherein n are the quantity of whole ap；Or
Send required duration=(the interval frame of the duration+priority of a beacon frame of the corresponding beacon frame of whole ap
Sifs/2) n, wherein n are the quantity of whole ap.
Whether the time period of free time judging maximum is not less than the required duration sending the corresponding beacon frame of whole ap；If
The time period of maximum free time is not less than the required duration sending the corresponding beacon frame of whole ap, and ac is just according to the order of packet
Distribute corresponding beacon frame time point for the whole ap in every group；If the time period of the free time of maximum is less than sends whole ap correspondences
Beacon frame required duration, then when the order according to packet is that part or all of ap in every group distributes corresponding beacon frame
Between point, in maximum idle time section, wherein, do not obtain the ap of corresponding beacon frame time point, originally joined in advance still according to ap
The beacon frame time point put sends beacon frame, and concrete grammar is as follows.
After ac is grouped to whole ap, generate three packets: the first central. set, the second central. set and specific group altogether.
Ac passes through to be calculated, and the beacon frame information of whole ap is needed 25ms.Meanwhile, ac determines a transmission beacon frame period
Interior maximum idle time section is 15ms.Now maximum idle time section is less than the duration of the beacon frame information of whole ap, then will
The starting point of maximum idle time section sends the starting point of beacon frame as the center ap of the first central. set, and according to order of packets, according to
The secondary ap corresponding beacon frame time point determining the first central. set, the second central. set and specific group；When by the second central. set certain
After the completion of the corresponding beacon frame time point of one ap determines, remaining maximum idle time section is less than the corresponding letter of ap
The duration of mark frame, then this ap ap below in the second central. set, and whole ap of specific group was still according to being originally pre-configured with
Beacon frame time point sends beacon frame, and due to the ap after this ap in the second central. set, and whole ap's of specific group is original
The beacon frame time point being pre-configured with will not determine free time section in, therefore, will not in free time section according to point
In whole ap of the first central. set of order determination of group and the second central. set, remaining ap distributes corresponding beacon frame time point
Produce interference.
The time point of the beacon frame of two ap be spaced apart the duration of a beacon frame and the interval sifs of priority
With；Or the interval being spaced apart the duration of a beacon frame and 1/2nd priority of the time point of the beacon frame of two ap
The sum of sifs.
In step 103, ac is that the part or all of ap corresponding beacon frame time point of configuration has three kinds of methods, separately below
It is introduced.
Ac is that part or all of ap configures corresponding beacon frame time point methods one, and modification ap sent between the time of beacon frame
Every:
Need to configure the ap of beacon frame time point for one, ac determines beacon frame time point that this ap is pre-configured with and needs
The difference of beacon frame time point to be configured；Ac by the duration in the initial transmission beacon frame period of this ap and determine difference sum
As the duration in this ap currently transmitted beacon frame period, and using the initial duration sending the beacon frame period as transmission letter afterwards
The duration in mark frame period.
Configure corresponding beacon frame time points with the whole ap of the first central. set, the initial transmission beacon frame period of ap when
It is assumed that having 5 ap in the first central. set as a example a length of 100ms, respectively w, x, y, z and center ap.Wherein w, x, y, z are in advance
The beacon frame time point of configuration is respectively 0.5ms, 3ms, 2ms and 1.5ms with the difference of the beacon frame time point needing configuration.ac
The duration in 4 ap of calculating currently transmitted beacon frame period respectively.
Duration=the 100ms+0.5ms in the currently transmitted beacon frame period of w；
Duration=the 100ms+3ms in the currently transmitted beacon frame period of x；
Duration=the 100ms+2ms in the currently transmitted beacon frame period of y；
Duration=the 100ms+1.5ms in the currently transmitted beacon frame period of z.
Using calculated w, the duration in the currently transmitted beacon frame period of x, y, z as w, the currently transmitted beacon of x, y, z
The duration in frame period, w, the beacon of x, y, z in the transmission cycle that now current beacon frame sends cycle next beacon frame corresponding
Frame time point can change, w, x, y, z in the transmission cycle that current beacon frame is sent cycle next beacon frame corresponding
Beacon frame time point, as the corresponding beacon frame time point of w, x, y, z configuration, and the duration by the initial transmission beacon frame period
(100ms) the transmission cycle of cycle next beacon frame corresponding is sent as current beacon frame, and its beacon frame information afterwards
The duration in cycle.
Ac is that part or all of ap configures corresponding beacon frame time point methods two, directly modification ap transmission beacon frame when
Between stab:
Need to configure the ap of beacon frame time point for one, ac determines beacon frame time point that this ap is pre-configured with and needs
The difference of beacon frame time point to be configured；Ac by the timestamp of the initial transmission beacon frame of this ap and determine difference and make
Send the timestamp of beacon frame for this ap.
So that whole ap of the first central. set configure corresponding beacon frame time point as a example it is assumed that having 5 in the first central. set
Individual ap, respectively w, x, y, z and center ap.The timestamp of center ap is directly revised as the initial of the free time section of determination by ac
Point, the difference respectively 0.5ms of the beacon frame time point that the beacon frame time point that w, x, y, z are pre-configured with is configured with needs,
3ms, 2ms and 1.5ms；Corresponding is that timestamp is respectively 1000 μ s, 2000 μ s, 3000 μ s, 4000 μ s.Respectively calculate w, x, y,
Z needs the timestamp of the transmission beacon frame of configuration.
W needs the timestamp=1000 μ s+0.5ms of the transmission beacon frame of configuration；
X needs the timestamp=2000 μ s+3ms of the transmission beacon frame of configuration；
Y needs the timestamp=3000 μ s+2ms of the transmission beacon frame of configuration；
Z needs the timestamp=4000 μ s+1.5ms of the transmission beacon frame of configuration.
Calculated w, x, y, z corresponding need configuration transmission beacon frame timestamp it is simply that ac be respectively w, x,
Y, z configure corresponding beacon frame time point.
Ac is that part or all of ap configures corresponding beacon frame time point methods three, modification ap relatively send beacon frame when
Between stab:
For one need configure beacon frame time point ap, ac determine this ap need configuration beacon frame time point with
The difference of the beacon frame time point of heart ap；Center ap is sent the timestamp of beacon frame and determine difference and as this ap by ac
Send the timestamp of beacon frame.
So that whole ap of the first central. set configure corresponding beacon frame time point as a example it is assumed that having 5 in the first central. set
Individual ap, respectively w, x, y, z and center ap.Ac calculate center ap the timestamp of initial transmission beacon frame with determine idle when
Between section start time point difference, by the timestamp of the initial transmission beacon frame of center ap and above-mentioned difference and, as in
The timestamp of the transmission beacon frame of heart ap configuration is it is assumed that the timestamp of the transmission beacon frame of center ap configuration is 1000 μ s.
Calculate the time point of transmission beacon frame of w, the time point of beacon frame of x, y, z configuration and center ap configuration respectively
Difference is it is assumed that the corresponding difference of calculated w, x, y, z distinguishes 2.5ms, 5ms, 7.5ms, 10ms.
The timestamp of the transmission beacon frame of the corresponding configuration of w, x, y, z is equal to the time of the transmission beacon frame of center ap configuration
Stamp and the sum of corresponding difference.That is:
Timestamp=1000 μ the s+2.5ms of the transmission beacon frame of the corresponding configuration of w；
Timestamp=1000 μ the s+5ms of the transmission beacon frame of the corresponding configuration of x；
Timestamp=1000 μ the s+7.5ms of the transmission beacon frame of the corresponding configuration of y；
Timestamp=1000 μ the s+10ms of the transmission beacon frame of the corresponding configuration of z
Calculated w, x, y, z corresponding need configuration transmission beacon frame timestamp it is simply that ac be respectively w, x,
Y, z configure corresponding beacon frame time point.
As shown in figure 3, being the concrete grammar indicating beacon frame information in the embodiment of the present invention, comprise the following steps:
Step 301:ac, in the ap composition set needing to distribute beacon frame time point, determines center ap；
Center ap, center ap can be perceived the ap of transmission signal by step 302:ac, and can perceive center ap
Transmission signal ap form a central. set；
Step 303:ac can perceive each ap in this group in the ap of transmission signal, and other ap outside this group
Ap composition one specific group transmitting signals at least one of this group ap can be perceived；
Step 304:ac determines whether ungrouped ap, if having, execution step 305, and if not having, execution step 306；
Step 305:ac is by set new for all ap compositions in all ungrouped ap and specific group, and specific group is deleted
Remove, execution step 301；
Step 306:ac determines mono- free time section sending in the beacon frame period of wireless access points ap；
Step 307:ac is according to whole ap corresponding beacon frame time points of distribution that the order being grouped is in every group；
Step 308:ac is that the whole ap in every group configure corresponding beacon frame time point, and ap is in corresponding beacon frame for instruction
Time point reach after send beacon frame.
Shown in Fig. 4, it is a kind of method sending beacon frame in the embodiment of the present invention, comprising:
Step 401: wireless access points ap receives part or all of ap and configures corresponding beacon frame time point；
Step 402:ap sends beacon frame according to receiving the corresponding beacon frame time point of part or all of ap configuration.
In step 401, the part or all of ap configuration that wireless access points ap is likely to be received two kinds of forms is corresponding
Beacon frame time point, is described separately below.
What the first form ap received is the corresponding duration sending the beacon frame period of each ap configuration, according to each ap
The corresponding duration sending the beacon frame period of configuration determines that each ap configures corresponding beacon frame time point.
What second form ap received is the corresponding timestamp sending beacon frame of each ap configuration, according to each ap pair
The timestamp of the transmission beacon frame that should configure determines that each ap configures corresponding beacon frame time point.
Based on same inventive concept, in the embodiment of the present invention, additionally provide a kind of device of instruction beacon frame information, due to
The method of the principle of this device solve problem instruction a kind of to embodiment of the present invention beacon frame information is similar, therefore the reality of this device
Apply the enforcement of the method for may refer to, repeat no more in place of repetition.
As shown in figure 5, being a kind of device of instruction beacon frame information in the embodiment of the present invention, comprising:
Free time section determining module 501, for determining in mono- transmission beacon frame period of wireless access points ap
Free time section；
Beacon frame time point determining module 502, for determining that in the free time section determining part or all of ap corresponds to
Beacon frame time point, wherein different ap corresponding beacon frame time points are different；
Configuration module 503, for configuring corresponding beacon frame time point for part or all of ap, ap is in corresponding letter for instruction
The time point of mark frame sends beacon frame after reaching.
Wherein, free time section determining module 501 specifically for, determine that ap mono- sends in the beacon frame period idle when
Between section, comprising: in the cycle of one of ap transmission beacon frame, may have several free time sections, the length of each free time section
May differ, any one free time section can be selected to send the time period of beacon frame as ap part or all of in ac,
It is preferred that one is sent the time that maximum free time section in the beacon frame period sends beacon frame as part or all of ap
Section.
If a free time section cannot send the beacon frame of whole ap, one or more free times can be determined again
Duan Zuowei residue ap sends the time period of beacon frame, and the one or more free time sections wherein determining again can be in the sky determining
Before the not busy time period it is also possible to determine free time section after.
Beacon frame time point determining module 502 specifically for: determine center ap, by determine free time section initial when
Between point configuration centered on ap beacon frame time point, then according to center ap determine other ap send beacon frame time point.
The determination of center ap: in the ap composition set needing to distribute beacon frame time point, each ap can be perceived
The quantity of the transmission signal of other ap is ranked up, and is possible to perceive the most ap of other ap transmission signal quantity as center
ap.
According to center ap, other ap are grouped: by center ap, center ap can perceive the ap of transmission signal, and
The ap that the transmission signal of center ap can be perceived forms a central. set, and each ap in this group can be perceived transmission signal
The ap composition one that the transmission signal of at least one of this group ap can be perceived in other ap outside ap, and this group is specific
Group.If now also having ungrouped ap, by set new for all ap compositions in all ungrouped ap and specific group, and will
Specific group is deleted, and determines a center ap in new set.By the center ap in new set, the center ap in new set can
Perceive the ap of transmission signal, and another center of ap composition that the transmission signal of center ap in new set can be perceived
Group, and each ap in this group can be perceived in the ap of transmission signal, and other ap outside this group and can perceive
The ap of the transmission signal of at least one of this group ap forms a specific group.If now also having ungrouped ap, repeat institute
Form new set by all ap in ungrouped ap and specific group, delete specific group, and be determined in new set
Perceive the most center ap of the transmission signal quantity of other ap, return center ap, center ap can perceive transmitting letter
Number ap, and can perceive center ap transmission signal ap form a central. set step.
After the completion of all being needed the ap distributing beacon frame time point to be grouped, needs judge that the time period of the free time determining is
Duration needed for the no corresponding beacon frame of whole ap not less than transmission；The time period of the wherein free time of determination is less than and sends all
The required duration of the corresponding beacon frame of ap, determines that the method for the time point of the corresponding beacon frame of whole ap has two kinds, the step of Fig. 1
It has been discussed in detail in rapid 102, will not be described here.
In configuration module 503, ac is that the part or all of ap corresponding beacon frame time point of configuration has three kinds of methods: modification
Ap sends the time interval of beacon frame, connects the timestamp that modification ap sends beacon frame, and modification ap sends the time of beacon frame relatively
Stamp；Respectively three kinds of methods are described in detail in the step 103 of Fig. 1, will not be described here.
As shown in fig. 6, being a kind of device sending beacon frame in the embodiment of the present invention, comprising:
Receiver module 601: be used for receiving the part or all of ap corresponding beacon frame time point of configuration；
Sending module 602: receive the corresponding beacon frame time point of part or all of ap configuration for basis and send beacon
Frame.
The part or all of ap being likely to be received two kinds of forms in receiver module 601 configures corresponding beacon frame time point,
It is described separately below.
What the first form ap received is the corresponding duration sending the beacon frame period of each ap configuration, according to each ap
The corresponding duration sending the beacon frame period of configuration determines that each ap configures corresponding beacon frame time point.
What second form ap received is the corresponding timestamp sending beacon frame of each ap configuration, according to each ap pair
The timestamp of the transmission beacon frame that should configure determines that each ap configures corresponding beacon frame time point.
As shown in fig. 7, the embodiment of the present invention additionally provides a kind of instruction beacon frame information and the system sending beacon frame, should
Access Control unit 710 and multiple wireless access points 711 are contained in system.
Access Control unit 710, for determine that wireless access points ap mono- sends in the beacon frame period idle when
Between section；Determine part or all of ap corresponding beacon frame time point in the described free time section determining, wherein different ap pair
The beacon frame time point answered is different；Transmitting portion or whole ap corresponding beacon frame time point.
Wireless access points 711, for receiving corresponding ap configuration beacon frame time point；According to receiving corresponding ap
Configuration beacon frame time point sends beacon frame.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or the reality combining software and hardware aspect
Apply the form of example.And, the present invention can be using in one or more computers wherein including computer usable program code
The upper computer program implemented of usable storage medium (including but not limited to disk memory, cd-rom, optical memory etc.) produces
The form of product.
The present invention is the flow process with reference to method according to embodiments of the present invention, equipment (system) and computer program
Figure and/or block diagram are describing.It should be understood that can be by each stream in computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor instructing general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device is to produce
A raw machine is so that produced for reality by the instruction of computer or the computing device of other programmable data processing device
The device of the function of specifying in present one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device with spy
Determine in the computer-readable memory that mode works so that the instruction generation inclusion being stored in this computer-readable memory refers to
Make the manufacture of device, this command device realize in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function of specifying in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that counting
On calculation machine or other programmable devices, execution series of operation steps to be to produce computer implemented process, thus in computer or
On other programmable devices, the instruction of execution is provided for realizing in one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function of specifying in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent
Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (18)
1. a kind of method of instruction beacon frame information is it is characterised in that the method includes:
Determine mono- free time section sending in the beacon frame period of wireless access points ap；
Determine part or all of ap corresponding beacon frame time point in the described free time section determining, wherein different ap correspond to
Beacon frame time point different；
Configure corresponding beacon frame time point for part or all of ap, instruction ap sends out after the time point of corresponding beacon frame reaches
Send beacon frame；
Wherein, determine part or all of ap corresponding beacon frame time point in the described free time section determining, comprising:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；
By center ap, center ap can perceive the ap of transmission signal, and the ap that can perceive the transmission signal of center ap
Form a central. set, and each ap in this group can be perceived the ap of transmission signal, and energy in other ap outside this group
The ap enough perceiving the transmission signal of at least one of this group ap forms a specific group；
Judge whether also ungrouped ap, if having, will be new for all ap compositions in all ungrouped ap and specific group
Set, deletes specific group, and is determined to perceive the most center ap of the transmission signal quantity of other ap in new set,
Return center ap, center ap can perceive the ap of transmission signal, and the ap group that can perceive the transmission signal of center ap
The step becoming a central. set；
Otherwise, just the order according to packet is that whole ap in every group distribute corresponding beacon frame time points.
2. the method for claim 1 it is characterised in that described determine described free time section in determine part or
All before ap corresponding beacon frame time point, comprising:
The most ap of transmission signal quantity being possible to perceive other ap is as center ap；
Beacon frame time point by ap centered on the start time point configuration of the free time section determining.
3. method as claimed in claim 2 is it is characterised in that described configure corresponding beacon frame time for part or all of ap
Point, comprising:
Need to configure the ap of beacon frame time point for one, determine beacon frame time point that this ap is pre-configured with and need to configure
Beacon frame time point difference；
Difference and all as the currently transmitted beacon frame of this ap with determine using the duration in the initial transmission beacon frame period of this ap
The duration of phase, and using the initial duration sending the beacon frame period as the duration sending the beacon frame period afterwards.
4. method as claimed in claim 2 is it is characterised in that described configure corresponding beacon frame time for part or all of ap
Point, comprising:
Need to configure the ap of beacon frame time point for one, determine beacon frame time point that this ap is pre-configured with and need to configure
Beacon frame time point difference；
Difference and as this ap transmission beacon frame timestamp using the timestamp of the initial transmission beacon frame of this ap and determination.
5. method as claimed in claim 2 is it is characterised in that described configure corresponding beacon frame time for part or all of ap
Point, comprising:
Need to configure the ap of beacon frame time point for one, determine that this ap needs the beacon frame time point of configuration to join with center ap
The difference of the beacon frame time point put；
Send the time of beacon frame using the timestamp of transmission beacon frame of center ap configuration and the difference of determination with as this ap
Stamp.
6. the method for claim 1 is it is characterised in that determine that in the described free time section determining one group of ap corresponds to
Beacon frame time point before, comprising:
Judge the free time section determining whether not less than the required duration sending the corresponding beacon frame of whole ap；
If so, it is that whole ap configure corresponding beacon frame time point；Otherwise, it is that part ap configures corresponding beacon frame time point.
7. method as claimed in claim 6 it is characterised in that described for part ap configure corresponding beacon frame time point it
Afterwards, also include:
Determine other free time sections sending in the beacon frame period, determine remaining in other free time sections determining
Ap corresponding beacon frame time point, and configure corresponding beacon frame time point for remaining ap.
8. a kind of method sending beacon frame is it is characterised in that the method includes:
Receive part or all of ap and configure corresponding beacon frame time point；
Send beacon frame according to receiving the corresponding beacon frame time point of part or all of ap configuration；
Wherein, described beacon frame time point is located at mono- free time section sending in the beacon frame period of wireless access points ap
Interior, the corresponding beacon frame time point of different ap is different；
Wherein, the beacon frame time point in described free time section is to be determined according to following manner:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；
By center ap, center ap can perceive the ap of transmission signal, and the ap that can perceive the transmission signal of center ap
Form a central. set, and each ap in this group can be perceived the ap of transmission signal, and energy in other ap outside this group
The ap enough perceiving the transmission signal of at least one of this group ap forms a specific group；
Judge whether also ungrouped ap, if having, will be new for all ap compositions in all ungrouped ap and specific group
Set, deletes specific group, and is determined to perceive the most center ap of the transmission signal quantity of other ap in new set,
Return center ap, center ap can perceive the ap of transmission signal, and the ap group that can perceive the transmission signal of center ap
The step becoming a central. set；
Otherwise, just the order according to packet is that whole ap in every group distribute corresponding beacon frame time points.
9. a kind of Access Control unit ac of instruction beacon frame information is it is characterised in that this Access Control unit includes:
Determine mono- free time section sending in the beacon frame period of wireless access points ap；
Determine part or all of ap corresponding beacon frame time point in the described free time section determining, wherein different ap correspond to
Beacon frame time point different；
Transmitting portion or whole ap corresponding beacon frame time point；
Wherein, determine part or all of ap corresponding beacon frame time point in the described free time section determining, comprising:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；
By center ap, center ap can perceive the ap of transmission signal, and the ap that can perceive the transmission signal of center ap
Form a central. set, and each ap in this group can be perceived the ap of transmission signal, and energy in other ap outside this group
The ap enough perceiving the transmission signal of at least one of this group ap forms a specific group；
Judge whether also ungrouped ap, if having, will be new for all ap compositions in all ungrouped ap and specific group
Set, deletes specific group, and is determined to perceive the most center ap of the transmission signal quantity of other ap in new set,
Return center ap, center ap can perceive the ap of transmission signal, and the ap group that can perceive the transmission signal of center ap
The step becoming a central. set；
Otherwise, just the order according to packet is that whole ap in every group distribute corresponding beacon frame time points.
10. a kind of wireless access points ap sending beacon frame is it is characterised in that this ap includes:
Receive corresponding ap configuration beacon frame time point；
Send beacon frame according to receiving corresponding ap configuration beacon frame time point；
Wherein, described beacon frame time point is located at mono- free time section sending in the beacon frame period of wireless access points ap
Interior, the corresponding beacon frame time point of different ap is different；
Wherein, the beacon frame time point in described free time section is to be determined according to following manner:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；
By center ap, center ap can perceive the ap of transmission signal, and the ap that can perceive the transmission signal of center ap
Form a central. set, and each ap in this group can be perceived the ap of transmission signal, and energy in other ap outside this group
The ap enough perceiving the transmission signal of at least one of this group ap forms a specific group；
Judge whether also ungrouped ap, if having, will be new for all ap compositions in all ungrouped ap and specific group
Set, deletes specific group, and is determined to perceive the most center ap of the transmission signal quantity of other ap in new set,
Return center ap, center ap can perceive the ap of transmission signal, and the ap group that can perceive the transmission signal of center ap
The step becoming a central. set；
Otherwise, just the order according to packet is that whole ap in every group distribute corresponding beacon frame time points.
A kind of 11. devices of instruction beacon frame information are it is characterised in that this device includes:
Free time section determining module: for determining mono- free time sending in the beacon frame period of wireless access points ap
Section；
Beacon frame time point determining module: for determining the corresponding letter of part or all of ap in the described free time section determining
Mark frame time point, wherein different ap corresponding beacon frame time points are different；
Configuration module: for configuring corresponding beacon frame time point for part or all of ap, ap is in corresponding beacon frame for instruction
Time point sends beacon frame after reaching；
Described beacon frame time point confirm module specifically for:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；By center ap, center ap can perceive the ap of transmission signal, and the transmission signal that can perceive center ap
Ap form a central. set, and each ap in this group can be perceived the ap of transmission signal, and other ap outside this group
In can perceive at least one of this group ap transmission signal ap form a specific group；Judge whether also ungrouped
Ap, if having, specific group is deleted in set new for all ap compositions in all ungrouped ap and specific group, and new
It is determined to perceive the most center ap of the transmission signal quantity of other ap in set, return center ap, center ap can
The step that the ap of the ap perceiving transmission signal and the transmission signal that can perceive center ap forms a central. set；Otherwise,
Order according to packet is that the whole ap in every group distribute corresponding beacon frame time point.
12. devices as claimed in claim 11, it is characterised in that described free time section determining module, are additionally operable to:
The most ap of transmission signal quantity being possible to perceive other ap is as center ap；By rising of the free time section determining
The beacon frame time point of ap centered on the configuration of beginning time point.
13. devices as claimed in claim 12 it is characterised in that described configuration module specifically for:
Need to configure the ap of beacon frame time point for one, determine beacon frame time point that this ap is pre-configured with and need to configure
Beacon frame time point difference；By the duration in the initial transmission beacon frame period of this ap, between the difference of determination and priority
Every frame sifs's and the duration as this ap currently transmitted beacon frame period, and using the initial duration sending the beacon frame period as
The duration in transmission beacon frame period afterwards.
14. devices as claimed in claim 12 it is characterised in that described configuration module specifically for:
Need to configure the ap of beacon frame time point for one, determine beacon frame time point that this ap is pre-configured with and need to configure
Beacon frame time point difference；Timestamp, the difference of determination and the interval of priority by the initial transmission beacon frame of this ap
Frame and send beacon frame as this ap timestamp.
15. devices as claimed in claim 12 it is characterised in that described configuration module specifically for:
Need to configure the ap of beacon frame time point for one, determine that this ap needs the beacon frame time point of configuration with center ap's
The difference of beacon frame time point；Center ap is sent the timestamp of beacon frame, the sum of the interval frame of the difference of determination and priority
Send the timestamp of beacon frame as this ap.
16. devices as claimed in claim 11 are it is characterised in that described free time section determining module is additionally operable to:
Judge the free time section determining whether not less than the required duration sending the corresponding beacon frame of whole ap；
If so, beacon frame time point determining module is that whole ap configure corresponding beacon frame time point；Otherwise, beacon frame time point
Determining module configures corresponding beacon frame time point for part ap.
17. devices as claimed in claim 16 are it is characterised in that described free time section determining module is additionally operable to: determine one
Individual other free time sections sending in the beacon frame period；
Beacon frame time point determining module: be additionally operable to determine the corresponding beacon of remaining ap in other free time sections determining
Frame time point, and configure corresponding beacon frame time point for remaining ap.
A kind of 18. devices sending beacon frame are it is characterised in that this device includes:
Receiver module: be used for receiving the part or all of ap corresponding beacon frame time point of configuration；
Sending module: receive the corresponding beacon frame time point of part or all of ap configuration for basis and send beacon frame；
Wherein, described beacon frame time point is located at mono- free time section sending in the beacon frame period of wireless access points ap
Interior, the corresponding beacon frame time point of different ap is different；
Wherein, the beacon frame time point in described free time section is to be determined according to following manner:
The transmission signal quantity being determined to perceive other ap in the ap composition set needing to distribute beacon frame time point is
Many center ap；
By center ap, center ap can perceive the ap of transmission signal, and the ap that can perceive the transmission signal of center ap
Form a central. set, and each ap in this group can be perceived the ap of transmission signal, and energy in other ap outside this group
The ap enough perceiving the transmission signal of at least one of this group ap forms a specific group；
Judge whether also ungrouped ap, if having, will be new for all ap compositions in all ungrouped ap and specific group
Set, deletes specific group, and is determined to perceive the most center ap of the transmission signal quantity of other ap in new set,
Return center ap, center ap can perceive the ap of transmission signal, and the ap group that can perceive the transmission signal of center ap
The step becoming a central. set；
Otherwise, just the order according to packet is that whole ap in every group distribute corresponding beacon frame time points.
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| CN201210418682.9A CN103796277B (en) | 2012-10-26 | 2012-10-26 | Method, system and device for indicating beacon frame sending and sending beacon frame |
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| CN104853375B (en) * | 2015-05-14 | 2018-03-09 | 江苏中兴微通信息科技有限公司 | The sending method of beacon frame collision is avoided in a kind of enhanced wireless LAN |
| CN110612748B (en) * | 2017-03-15 | 2023-03-28 | 开利公司 | Method for managing idle time of access point and wireless communication system |
| CN110768756A (en) * | 2018-07-25 | 2020-02-07 | 华为技术有限公司 | Method for controlling beacon frame transmission and related device |
| CN111031525B (en) * | 2019-12-17 | 2023-05-26 | 杭州迪普科技股份有限公司 | Beacon frame sending method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627758A (en) * | 2003-12-09 | 2005-06-15 | 阿瓦雅技术公司 | Distributed architecture for deploying multiple wireless local-area networks |
| CN1809989A (en) * | 2003-06-24 | 2006-07-26 | 因芬尼昂技术股份公司 | Method and arrangement for reducing the average time needed for a communication unit to connect to a communication network |
| CN1929424A (en) * | 2005-09-06 | 2007-03-14 | 日本电气株式会社 | Method of evaluating channel bandwidth utilization ratio, wireless communication system |
| CN101820668A (en) * | 2010-04-29 | 2010-09-01 | 华为终端有限公司 | Wireless access point working method and wireless access point device |
| CN101977385A (en) * | 2010-10-27 | 2011-02-16 | 南京航空航天大学 | DSAM (Dynamic Slot-time Allocation Method) of scale-extensible single-jump ad hoc network supporting QoS (Quality of Service) |
| CN102090126A (en) * | 2008-07-14 | 2011-06-08 | 高通股份有限公司 | Systems and methods for providing a separate contention window allowing allocations for pending uplink SDMA transmission opportunities |
-
2012
- 2012-10-26 CN CN201210418682.9A patent/CN103796277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809989A (en) * | 2003-06-24 | 2006-07-26 | 因芬尼昂技术股份公司 | Method and arrangement for reducing the average time needed for a communication unit to connect to a communication network |
| CN1627758A (en) * | 2003-12-09 | 2005-06-15 | 阿瓦雅技术公司 | Distributed architecture for deploying multiple wireless local-area networks |
| CN1929424A (en) * | 2005-09-06 | 2007-03-14 | 日本电气株式会社 | Method of evaluating channel bandwidth utilization ratio, wireless communication system |
| CN102090126A (en) * | 2008-07-14 | 2011-06-08 | 高通股份有限公司 | Systems and methods for providing a separate contention window allowing allocations for pending uplink SDMA transmission opportunities |
| CN101820668A (en) * | 2010-04-29 | 2010-09-01 | 华为终端有限公司 | Wireless access point working method and wireless access point device |
| CN101977385A (en) * | 2010-10-27 | 2011-02-16 | 南京航空航天大学 | DSAM (Dynamic Slot-time Allocation Method) of scale-extensible single-jump ad hoc network supporting QoS (Quality of Service) |
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