CN109561449A - A kind of wireless communications method and relevant device - Google Patents
A kind of wireless communications method and relevant device Download PDFInfo
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- CN109561449A CN109561449A CN201710891586.9A CN201710891586A CN109561449A CN 109561449 A CN109561449 A CN 109561449A CN 201710891586 A CN201710891586 A CN 201710891586A CN 109561449 A CN109561449 A CN 109561449A
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- 238000012545 processing Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 26
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- 230000030279 gene silencing Effects 0.000 description 8
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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Abstract
A kind of wireless communications method and relevant device are disclosed, the packet loss phenomenon of wireless access point is reduced.The method comprise the steps that wireless access point sends multiple silent parameters to multiple target wireless terminals, the multiple target wireless terminals and the multiple silent parameter correspond, the multiple target wireless terminals are associated with the wireless access point, each of the multiple silence parameter includes silence period and quiet interval, silence period described in any one silent parameter when a length of quiet interval duration and the sum of the duration of non-silence period, the quiet interval refers to the period for not allowing corresponding target wireless terminals to send message, the non-silence period refers to the period for allowing corresponding target wireless terminals to send message, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
Description
Technical field
This application involves wireless communication field more particularly to a kind of wireless communications methods and relevant device.
Background technique
Referring to Fig. 1, which is the schematic diagram of WLAN (WLAN) system suitable for highway.In the figure,
WLAN terminal (such as the hand being deployed in the wireless access point (English: access point, AP) and vehicle in highway roadside
Machine, tablet computer, car-mounted terminal etc.) communication.Terminal is via wireless access point sending and receiving data to access internet.
Wireless access point can only receive the wireless signal of terminal transmission every time.It is sent wirelessly detecting another terminal
When signal, the terminal of signal to be sent can postpone the transmission of wireless signal.Since the vehicle high-speed on highway is mobile, vehicle
Between generally remain big distance to guarantee safety.Therefore the distance between terminal is remote.It can not mutually be detected apart from remote terminal
Whether other side is sending wireless signal.The terminal of other side concealed nodes each other can not mutually be detected.Concealed nodes each other
Terminal may send wireless signal simultaneously.Interference between wireless signal so that wireless access point is difficult to decode wireless signal, from
And the packet loss for causing terminal to send.
Summary of the invention
In order to solve the above-mentioned technical problem, this application provides a kind of wireless communications method and relevant device, reduce nothing
The packet loss phenomenon of line access point.
In a first aspect, this application provides a kind of wireless communications methods, which comprises
Wireless access point sends multiple silent parameters, the multiple target wireless terminals and institute to multiple target wireless terminals
It states multiple silent parameters to correspond, the multiple target wireless terminals are associated with the wireless access point, the multiple silence
Each of parameter includes silence period and quiet interval, the when a length of institute of silence period described in any one silent parameter
The sum of duration and the duration of non-silence period of quiet interval are stated, the quiet interval, which refers to, does not allow corresponding Target Wireless
Terminal sends the period of message, and the non-silence period refers to the time for allowing corresponding target wireless terminals to send message
Section, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
In this application, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon.
In the first mode in the cards of first aspect, each Target Wireless in the multiple target wireless terminals
The duration of the non-silence period of terminal is based on the historical traffic of corresponding target wireless terminals.
In the first of first aspect or first aspect mode in the cards, the multiple target wireless terminals be with
Meet the wireless terminal of at least one preset condition in the associated all wireless terminals of wireless access point, it is described at least one
Preset condition includes the first preset condition, and first preset condition includes:
The signal strength of the multiple target wireless terminals is greater than or equal to the first preset signal strength；Or,
The signal strength of the multiple target wireless terminals respectively higher than or be equal to respective history maximum signal with
The difference of second preset signal strength；Or,
The multiple target wireless terminals are to arrange with signal strength in the associated all wireless terminals of the wireless access point
In the wireless terminal of preceding first preset number.
Since mesh could be used as in all wireless terminals high with signal strength in the associated wireless terminal of wireless access point
Wireless terminal is marked, the signal for guaranteeing that the high wireless terminal of signal strength is sent can be not dropped, and realized to reduce on the whole and be lost
The purpose of packet rate, while reducing the calculation amount of silent parameter.
With reference to first aspect or the first mode in the cards of first aspect, in second of mode in the cards
In, at least one described preset condition further includes the second preset condition, and second preset condition includes:
The historical traffic of the multiple target wireless terminals is greater than or equal to preset flow；Or,
The multiple target wireless terminals are historical traffics in all wireless terminals for meet first preset condition
Come preceding second preset number wireless terminal.
In selection target wireless terminal, under the premise of considering signal strength, historical traffic, purpose are further considered
It is on the basis of reducing packet loss, as far as possible the communication requirement between guarantee wireless terminal and wireless access point, and
It is further reduced the calculation amount of silent parameter.
With reference to first aspect, second of the first of first aspect mode in the cards or first aspect can be able to achieve
Mode, in the third mode in the cards, the historical traffic includes following one or more:
History is eated dishes without rice or wine holding time, historical data amount and history message amount.
With reference to first aspect the first mode in the cards, second of mode in the cards of first aspect or
The third mode in the cards of one side, in the 4th kind of mode in the cards, at least one described preset condition is also
Including third preset condition, the third preset condition includes:
The multiple target wireless terminals are less than or equal to pre-determined distance at a distance from the wireless access point.
Distance is further considered in selection target wireless terminal, its object is on the basis of reducing packet loss, into
One step reduces the calculation amount of silent parameter.
Second aspect, present invention also provides a kind of wireless access point, the wireless access point includes:
Transmission unit, for sending multiple silent parameters, the multiple target wireless terminals to multiple target wireless terminals
It is corresponded with the multiple silent parameter, the multiple target wireless terminals are associated with the wireless access point, the multiple
Each of silent parameter includes silence period and quiet interval, the duration of silence period described in any one silent parameter
For the sum of the duration of the quiet interval and duration of non-silence period, the quiet interval, which refers to, does not allow corresponding target
Wireless terminal sends the period of message, and the non-silence period, which refers to, allows corresponding target wireless terminals to send message
Period, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
In this application, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon.
The third aspect, present invention also provides a kind of wireless communication system, the system comprises wireless access point and multiple
Target wireless terminals, the wireless access point are associated with the multiple target wireless terminals；
The wireless access point, for sending multiple silent parameters to multiple target wireless terminals, the multiple target without
Line terminal and the multiple silent parameter correspond, and the multiple target wireless terminals are associated with the wireless access point, institute
Stating each of multiple silent parameters includes silence period and quiet interval, silence period described in any one silent parameter
When a length of quiet interval duration and the sum of the duration of non-silence period, the quiet interval, which refers to, not to be allowed to correspond to
Target wireless terminals send period of message, the non-silence period, which refers to, allows corresponding target wireless terminals to send
The period of message, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals；
The multiple target wireless terminals are used for according to the respective silent parameter, only in the respective non-silence time
Section sends wireless signal to the wireless access point.
In this application, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon.
Fourth aspect, the application also additionally provide a kind of wireless access point, and the wireless access point includes processor and nothing
Line interface, the processor is used to send multiple silent parameters to multiple target wireless terminals with the wireless interface, described more
A target wireless terminals and the multiple silent parameter correspond, the multiple target wireless terminals and the wireless access point
Association, each of the multiple silence parameter includes silence period and quiet interval, described in any one silent parameter
Silence period when a length of quiet interval duration and the sum of the duration of non-silence period, the quiet interval refers to not
Corresponding target wireless terminals are allowed to send the period of message, the non-silence period, which refers to, allows corresponding Target Wireless
Terminal sends the period of message, the non-silence period of any two target wireless terminals in the multiple target wireless terminals
It is not overlapped.
In this application, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon.
5th aspect, the application also additionally provide a kind of computer program product, and the computer program is when executed
So that wireless access point executes following operation:
Multiple silent parameters, the multiple target wireless terminals and the multiple silence are sent to multiple target wireless terminals
Parameter corresponds, and the multiple target wireless terminals are associated with the wireless access point, every in the multiple silence parameter
One includes silence period and quiet interval, the when a length of quiet interval of silence period described in any one silent parameter
Duration and the sum of the duration of non-silence period, the quiet interval, which refers to, does not allow corresponding target wireless terminals to send report
The period of text, the non-silence period refers to the period for allowing corresponding target wireless terminals to send message, described more
The non-silence period of any two target wireless terminals is not overlapped in a target wireless terminals.
In this application, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon.
Detailed description of the invention
Fig. 1 is the schematic diagram of WLAN (WLAN) system suitable for highway；
Fig. 2 is the hardware architecture diagram of wireless communication system provided by the embodiments of the present application；
Fig. 3 is a kind of flow chart of wireless communications method provided by the embodiments of the present application；
Fig. 4 is a kind of structural block diagram of wireless access point provided by the embodiments of the present application.
Specific embodiment
This application provides a kind of wireless communications method and relevant device, principle is using silencing mechanisms, to using
Carrier Sense Multiple Access/collision avoids (English: carrier-sense multiple access with collision
Avoidance, CSMA/CA) access mechanism multiple target wireless terminals to wireless access point send message period carry out
Control.
Silencing mechanisms, which define one, does not have the quiet interval (English: quiet interval) of transmission.This when
Between interval can be used to realize the channel measurement of the not signal interference of wireless terminal.
The hardware architecture diagram of wireless communication system provided by the present application is introduced by taking an application scenarios as an example below.
Referring to fig. 2, in the figure, wireless communication system includes wireless access point 100 and multiple wireless terminals 200.Wirelessly
Terminal 200 includes the terminal device of the support WLAN of mobile phone, computer, wearable device, car-mounted terminal or any other type.
Multiple wireless terminals 200 are associated with wireless access point 100.
Referring to Fig. 3, which is a kind of flow chart of wireless communications method provided by the embodiments of the present application.
Wireless communications method provided in this embodiment includes the following steps:
S101: wireless access point sends multiple silent parameters to multiple target wireless terminals.
S102: multiple target wireless terminals send wireless signal to the wireless access point according to respective silent parameter.
Target wireless terminals be with the associated all wireless terminals of wireless access point, or it is associated with wireless access point
Some wireless terminals in all wireless terminals.For example, can with selected in the associated all wireless terminals of wireless access point
The higher wireless terminal of signal strength is as target wireless terminals.
Multiple target wireless terminals are associated with wireless access point.Wireless access point can use silent element (English: Quiet
Element), possible other similar element refers in silent channel element (English: Quiet Channel element) or WLAN
Show the silent parameter of each wireless terminal.The multiple target wireless terminals and the multiple silent parameter correspond.
Silent element or silent channel element include between silence period (English: Quiet Period) field and instruction silence
Every multiple fields.The multiple fields for indicating quiet interval include silent duration (English: Quiet Duration) field, silence
Number (English: Quiet Count) field and silent offset (English: Quiet Offset) field.Wherein silent offset field
Value can be default, as 0.
Silence period field be arranged between the starting of the quiet interval of regular schedule beacon interval (English:
Beacon interval) number.Silence period field is not 0 in the embodiment of the present invention.
In any one silent parameter silence period when a length of quiet interval duration and the duration of non-silence period
The sum of.Quiet interval refers to the period for forbidding target wireless terminals to send signal.The non-silence period refer to allow target without
The period of line terminal transmission signal.Target wireless terminals refer to the wireless terminal for receiving silent parameter, different silent parameters
Corresponding different target wireless terminals.
In order to allow different target wireless terminals only to receive the silent parameter of oneself, the management frame of unicast, example can be used
As unicast beacon frame or action action frame carry silent parameter.Carry the management frame of silent parameter recipient address (English:
Receiver address, RA) be corresponding target wireless terminals address.
Silent duration field is arranged to the duration of quiet interval, is indicated with chronomere's (English: time unit, TU).
One chronomere is 1024 microseconds, i.e., about 1 millisecond.
Silent time field is arranged to target beacon sending time (English between the beacon interval started to quiet interval
Text: target beacon transmission time, TBTT) number.The value of silent time field is between 1 instruction is silent
The beacon interval of beginning is separated since next TBTT.
Silent offset field is arranged to the offset since the TBTT to quiet interval that silent time field is specified, with TU
It indicates.The value of silent offset field is lower than a beacon interval.
Wireless aps can be that multiple silences are arranged in a target wireless terminals with multiple silent elements in a management frame
Interval.Period except quiet interval is the non-silence period.Wireless aps can obtain corresponding according to the non-silence period
One or more silence elements.
For example, if beacon interval is 100 milliseconds, a target wireless terminals are set from receiving and carry silent element
Management frame after start 400 milliseconds to 700 milliseconds of the 1st TBTT can send signal, and with 1000 milliseconds for the period
It repeats, then can send the unicast management frames including following two silence element: first silent member to the target wireless terminals
The silence period field of element is 10, silent duration field 400, and silent time field is 1, and silent offset field is 0.Second quiet
The silence period field of silent element is 10, silent duration field 300, and silent time field is 8, and silent offset field is 0.
In another example it is silent first from carrying is received that a target wireless terminals are arranged if beacon interval is 100 milliseconds
Start 250 milliseconds of the 1st TBTT to 430 milliseconds and 660 milliseconds to 820 milliseconds after the management frame of element can send letter
Number, and repeated with 1000 milliseconds for the period, then can send to the target wireless terminals includes following three silent elements
Unicast management frames: the silence period field of first silent element is 10, silent duration field 250, and silent time field is 1,
Silent offset field is 0.The silence period field of second silent element is 10, silent duration field 230, silent time field
It is 5, silent offset field is 0.The silence period field of third silence element is 10, silent duration field 180, silent number
Field is 9, and silent offset field is 0.
Wireless aps are that multiple target wireless terminals distribute the respective non-silence period, and guarantee these non-silence periods
It does not overlap.These target wireless terminals can be with the associated whole wireless terminals of wireless aps, or can be and wireless aps
Some wireless terminals in associated wireless terminal.Wireless aps are according to the non-silence time distributed for each target wireless terminals
Section sends the unicast management frames for carrying silent element corresponding with its non-silence period to the target wireless terminals.
For example, if beacon interval be 100 milliseconds, silence period be 10 beacon intervals, i.e., 1000 milliseconds.Wireless aps are
10 target wireless terminals distribute the non-silence periods, are followed successively by 0-100, and 100-200 milliseconds ... ..., 900-1000 milliseconds.Then
Wireless aps successively send management frame 1 to management frame 10 to these target wireless terminals.Wherein, management frame 1 carries a silent member
Element.The silence period field of the silence element is 10, silent duration field 900, and silent time field is 2, silent offset field
It is 0.Management frame 2 carries two silent elements.The silence period field of first silent element is 10, silent duration field 100,
Silent time field is 1, and silent offset field is 0.The silence period field of second silent element is 10, silent duration field
800, silent time field is 3, and silent offset field is 0.Management frame 3 carries two silent elements.First silent element
Silence period field is 10, silent duration field 200, and silent time field is 1, and silent offset field is 0.Second silent member
The silence period field of element is 10, silent duration field 700, and silent time field is 4, and silent offset field is 0.Successively class
It pushes away, management frame 10 carries a silent element.The silence period field of the silence element is 10, and silent duration field 900 is silent
Time field is 1, and silent offset field is 0.
In the above example, if management frame carries more than one silent element, in addition to using described above at one
The mode that multiple silent elements are carried in management frame can also send several times this multiple silent element by multiple management frames.
Such as above-mentioned management frame 2 can become management frame 2 ' and 2 ", wherein management frame 2 ' carries a silent element, the silence element
Silence period field is 2, silent duration field 100, and silent time field is 1, and silent offset field is 0.Management frame 2 " carries
Another silent element, the silence period field of the silence element are 9, and silent duration field 800, silent time field is 2, quiet
Silent offset field is 0.When having sent management frame 2 ' to target wireless terminals and after a beacon interval, to the Target Wireless
Terminal sends management frame 2 ".
In the present embodiment, it realizes orderly to send multiple target wireless terminals to wireless access point using silencing mechanisms and believe
Number.Arbitrary target wireless terminal was only just allowed to send wireless signal in the non-silence period.Since multiple Target Wireless are whole
The non-silence period of any two target wireless terminals is not overlapped in end, any one target wireless terminals sends wireless signal
When there is no any other target wireless terminals that can send wireless signal.So wireless access point is in each non-silence period
The wireless signal from a target wireless terminals can be received, to reduce the appearance of packet loss phenomenon
In addition, in the present embodiment, the silent duration of target wireless terminals can be respectively according to multiple target wireless terminals
Respective historical traffic is determined.The historical traffic of one target wireless terminals refers to that wireless access point is once received and comes from
In the flow for the message that the target wireless terminals are sent and/or the flow of the message sent to the target wireless terminals.In silence
Under the premise of period is certain, historical traffic is higher, and silent duration is shorter, and the non-silence period is longer.
Optionally, silent duration can weight to obtain according to history quiet interval, and weight carries out really according to historical traffic
It is fixed.When history silence duration refers to the silence that wireless access point once included into the silent parameter of target wireless terminals transmission
It is long.For example, history silence duration can be the silent duration that the wireless access point last time sends to target wireless terminals.History is quiet
Silent duration can also be the mean value for the silent duration that wireless access point is sent to target wireless terminals several times recently.
Optionally, historical traffic includes following few one: history is eated dishes without rice or wine holding time, historical data amount and history message number
Amount.
Wherein, the history of a target wireless terminals eat dishes without rice or wine holding time refer to wireless access point once received the target without
The message occupied time that line terminal is sent, and/or, wireless access point was once sent shared by message to the target wireless terminals
Time.For example, history is eated dishes without rice or wine holding time can be the wireless access point last time receive the target wireless terminals transmission
The message occupied time, and/or, it is last to send the message occupied time to the target wireless terminals.When history is eated dishes without rice or wine
Between can also be wireless access point receive several times recently the target wireless terminals message and/or send message it is occupied when
Between mean value.
The historical data amount of one target wireless terminals refers to that wireless access point once received target wireless terminals transmission
Message data volume, and/or, wireless access point once to the target wireless terminals send message data volume.For example, going through
History data volume can be the data volume for the wireless access point last time receiving the message of target wireless terminals transmission, and/or, wirelessly
The data volume for the message that the access point last time sends to the target wireless terminals.Historical data amount can also be wireless access point most
The message for closely receiving the data volume of the message of target wireless terminals transmission several times and/or being sent to the target wireless terminals
The mean value of data volume.
The history message amount of one target wireless terminals refers to that wireless access point once received target wireless terminals hair
The quantity of the message sent, and/or, the quantity for the message that wireless access point was once sent to the target wireless terminals.For example, history
Message amount can be the quantity for the wireless access point last time receiving the message of target wireless terminals transmission, and/or, wirelessly connect
The quantity for the message that the access point last time sends to the target wireless terminals.Historical data amount can also be that wireless access point is pre- recently
If receiving the quantity for the message that the target wireless terminals are sent in the period and/or the message that sends to the target wireless terminals
The mean value of quantity.
In addition, in order to reduce the calculation amount of silent parameter, it can be from the associated all wireless terminals of wireless access point
The wireless terminal for meeting at least one preset condition is selected as target wireless terminals.
Firstly, in order to reduce packet loss phenomenon as far as possible, in the present embodiment, from wireless access point associated wireless end
The high wireless terminal of selection signal intensity is as target wireless terminals in end.This is because if wireless access point receives to come simultaneously
When from the message sent in two different wireless terminals, if the signal strength of the two wireless terminals is identical or relatively,
So wireless access point will all abandon the two messages；If the signal strength gap of the two wireless terminals is larger, then
The packet loss that wireless access point can send the poor wireless terminal of signal strength.If by the high wireless terminal of signal strength
As target wireless terminals, can guarantee seize the time of eating dishes without rice or wine between the high wireless terminal of signal strength first, that is,
It says that the message for guaranteeing that the high wireless terminal of signal strength is sent can be received, is not in the phenomenon that message is all dropped.
Even if secondly, the high wireless terminal of signal strength to wireless access point send message while, signal strength low wireless end
End also sends message to wireless access point, then the message that the low wireless terminal of signal strength is sent will be discarded, thus
The signal for guaranteeing that the high wireless terminal of signal strength is sent can be not dropped.Generally speaking, exactly by abandoning signal strength
Low wireless terminal, the signal for guaranteeing that the high wireless terminal of signal strength is sent can be received, to realize on the whole
Reduce the purpose of packet loss.
Specifically, the signal strength of target wireless terminals needs to meet the first preset condition.First preset condition can be
The signal strength of the multiple target wireless terminals is greater than or equal to the first preset signal strength, or, multiple target wireless terminals
Signal strength be respectively higher than or be equal to respective history maximum signal and the second preset signal strength difference.For the latter
For, the corresponding signal strength threshold difference of different target wireless terminals is identical, and this mode is it is contemplated that wireless terminal
Actual association situation, have more practicability.
It is associated wireless with the wireless access point that first preset condition, which is also possible to the multiple target wireless terminals,
Signal strength comes the wireless terminal of preceding first preset number in terminal.
Optionally, signal strength can receive the message receiving velocity from wireless terminal message by wireless access point
It obtains, message receiving velocity is higher, shows that signal strength is higher；Message receiving velocity is lower, shows that signal strength is lower.
In addition to considering signal strength, in order to reduce calculation amount, under the premise of signal strength is higher, it is also contemplated that preferential
Wireless terminal that is historical traffic is higher and/or being closer is selected as target wireless terminals.That is, from it is all with wirelessly connect
In the associated wireless terminal of access point, select-out signal intensity is high and historical traffic is high, and/or, signal strength is high and apart from close nothing
Line terminal is as target wireless terminals.
Since historical traffic represents the interaction demand between wireless terminal and wireless access point, it is contemplated that historical traffic removes
In order to reduce the calculation amount of silent parameter, also for guaranteeing that the communication between wireless terminal and wireless access point needs as far as possible
It asks.Historical traffic can once be carried out really to the velocity and time of wireless access point transmission signal every time by wireless terminal
It is fixed.
Specifically, under the premise of the signal strength of target wireless terminals meets the first preset condition, target wireless terminals
Historical traffic meet the second preset condition.The historical traffic that second preset condition can be multiple target wireless terminals be greater than or
Equal to preset flow.Second preset condition can also be that the multiple target wireless terminals meet first preset condition
Preceding second preset number wireless terminal is come in all wireless terminals.
The distance between wireless terminal and wireless access point can send signal to wireless terminal by wireless access point
Time to wireless access point receives time and the signal rate of the response signal from wireless terminal feedback to be counted
It calculates.
Specifically, under the premise of the signal strength of target wireless terminals meets the first preset condition, target wireless terminals
With meet third preset condition at a distance from wireless access point.Third preset condition can be the multiple target wireless terminals and institute
The distance for stating wireless access point is less than or equal to pre-determined distance.Third preset condition can also be that the target wireless terminals are full
The wireless terminal of third preset number before being come in all wireless terminals of the first preset condition of foot or the second preset condition.
Based on a kind of wireless communications method that above embodiments provide, the embodiment of the present application also provides a kind of wireless access
Point, comprising:
Transmission unit, for sending multiple silent parameters, the multiple target wireless terminals to multiple target wireless terminals
It is corresponded with the multiple silent parameter, the multiple target wireless terminals are associated with the wireless access point, the multiple
Each of silent parameter includes silence period and quiet interval, the duration of silence period described in any one silent parameter
For the sum of the duration of the quiet interval and duration of non-silence period, the quiet interval, which refers to, does not allow corresponding target
Wireless terminal sends the period of message, and the non-silence period, which refers to, allows corresponding target wireless terminals to send message
Period, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
Optionally, in the multiple target wireless terminals the non-silence period of each target wireless terminals duration
Historical traffic based on corresponding target wireless terminals.
Optionally, the multiple target wireless terminals are and meet in the associated all wireless terminals of the wireless access point
The wireless terminal of at least one preset condition, at least one described preset condition include the first preset condition, and described first is default
Condition includes:
The signal strength of the multiple target wireless terminals is greater than or equal to the first preset signal strength；Or,
The signal strength of the multiple target wireless terminals respectively higher than or be equal to respective history maximum signal with
The difference of second preset signal strength；Or,
The multiple target wireless terminals are to arrange with signal strength in the associated all wireless terminals of the wireless access point
In the wireless terminal of preceding first preset number.
Optionally, at least one described preset condition further includes the second preset condition, and second preset condition includes:
The historical traffic of the multiple target wireless terminals is greater than or equal to preset flow；Or,
The multiple target wireless terminals are historical traffics in all wireless terminals for meet first preset condition
Come preceding second preset number wireless terminal.
Optionally, the historical traffic includes following one or more:
History is eated dishes without rice or wine holding time, historical data amount and history message amount.
Optionally, at least one described preset condition further includes third preset condition, and the third preset condition includes:
The multiple target wireless terminals are less than or equal to pre-determined distance at a distance from the wireless access point.
The embodiment of the present application also provides a kind of wireless communication systems, and the system comprises wireless access point and multiple targets
Wireless terminal, the wireless access point are associated with the multiple target wireless terminals；
The wireless access point, for sending multiple silent parameters to multiple target wireless terminals, the multiple target without
Line terminal and the multiple silent parameter correspond, and the multiple target wireless terminals are associated with the wireless access point, institute
Stating each of multiple silent parameters includes silence period and quiet interval, silence period described in any one silent parameter
When a length of quiet interval duration and the sum of the duration of non-silence period, the quiet interval, which refers to, not to be allowed to correspond to
Target wireless terminals send period of message, the non-silence period, which refers to, allows corresponding target wireless terminals to send
The period of message, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals；
The multiple target wireless terminals, for sending nothing to the wireless access point according to the respective silent parameter
Line signal.
This embodiment reduces the appearance of wireless access point packet loss phenomenon.
The embodiment of the present application also provides a kind of wireless access point, and referring to fig. 4, which is provided in this embodiment wirelessly to connect
The structural block diagram of access point.
The wireless access point 20 includes: the portions such as wireless interface 201, wireline interface 202, memory 203, processor 204
Part.It will be understood by those skilled in the art that the structure of wireless access point 20 shown in Fig. 4 is not constituted to wireless access point
It limits, may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
Wireless interface 201 can be used for communicating wirelessly with wireless terminal, generally include antenna and wireless network card.
Wireline interface 202 can be used for being communicated with upper network equipment, generally include wired network adapter.
Program, the program that processor 204 is stored in memory 203 by operation, to hold are stored in memory 203
The various functions of row wireless access point 20 and data processing.
In AP, memory 203 is usually memory.
Processor 204 is the control centre of wireless access point 20, utilizes various interfaces and the entire wireless access of connection
The various pieces of point 20 by running or execute the software program and/or module that are stored in memory 203, and are called and are deposited
The data in memory 203 are stored up, the various functions and processing data of wireless access point 20 are executed, thus to wireless access point 20
Carry out integral monitoring.
Wireless access point 20 further includes the power supply 205 powered to all parts, such as active Ethernet (English: Power
Over Ethernet, POE), optionally, power supply 205 can be logically contiguous by power-supply management system and processor 204, thus
The functions such as management charging, electric discharge and power managed are realized by power-supply management system.
In the embodiment of the present application, the processor 204 is used for:
Multiple silent parameters are sent to multiple target wireless terminals by wireless interface 201, the multiple Target Wireless is whole
End and the multiple silent parameter correspond, and the multiple target wireless terminals are associated with the wireless access point, described more
A silence each of parameter includes silence period and quiet interval, silence period described in any one silent parameter when
The sum of duration and the duration of non-silence period of a length of quiet interval, the quiet interval, which refers to, does not allow corresponding mesh
The period that wireless terminal sends message is marked, the non-silence period, which refers to, allows corresponding target wireless terminals to send message
Period, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
This embodiment reduces the appearance of wireless access point packet loss phenomenon.
In the above-described embodiments, it can be realized wholly or partly by software, hardware or a combination thereof.When using soft
When part is realized, can entirely or partly it realize in the form of a computer program product.The computer program product includes one
A or multiple computer instructions.When loading on computers and executing the computer program instructions, entirely or partly generate
According to process or function described in the embodiment of the present application.The computer can be general purpose computer, special purpose computer, computer
Network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or from one
A computer readable storage medium is transmitted to another computer readable storage medium, for example, the computer instruction can be from one
A web-site, computer, server or data center pass through wired (such as coaxial cable, twisted pair, optical fiber) or wireless (example
Such as infrared, wireless, microwave) mode transmitted to another web-site, computer, server or data center.It is described
Computer readable storage medium can be any usable medium that computer can store or include one or more available
The data storage devices such as medium integrated server, data center.The usable medium can be magnetic medium, (for example, soft
Disk, hard disk, tape), optical medium (for example, CD) or semiconductor medium (such as solid state hard disk (SSD)) etc..
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system.Another point, shown or discussed mutual coupling or direct coupling
Close or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, can be electrical property or its
Its form.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify, and these modifications do not make corresponding technical solution be detached from claim
Range.
Claims (15)
1. a kind of wireless communications method, which is characterized in that the described method includes:
Wireless access point sends multiple silent parameters to multiple target wireless terminals, the multiple target wireless terminals and described more
A silence parameter corresponds, and the multiple target wireless terminals are associated with the wireless access point, the multiple silence parameter
Each of include silence period and quiet interval, silence period described in any one silent parameter when it is a length of described quiet
The sum of the duration and the duration of non-silence period at silent interval, the quiet interval, which refers to, does not allow corresponding target wireless terminals
The period of message is sent, the non-silence period refers to the period for allowing corresponding target wireless terminals to send message,
The non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
2. the method according to claim 1, wherein each Target Wireless is whole in the multiple target wireless terminals
The duration of the non-silence period at end is based on the historical traffic of corresponding target wireless terminals.
3. method according to claim 1 or 2, which is characterized in that the multiple target wireless terminals be with it is described wireless
Meet the wireless terminal of at least one preset condition, at least one described preset condition in the associated all wireless terminals of access point
Including the first preset condition, first preset condition includes:
The signal strength of the multiple target wireless terminals is greater than or equal to the first preset signal strength；Or,
The signal strength of the multiple target wireless terminals is respectively higher than or equal to respective history maximum signal and second
The difference of preset signal strength；Or,
The multiple target wireless terminals are before coming with signal strength in the associated all wireless terminals of the wireless access point
The wireless terminal of first preset number.
4. according to the method described in claim 3, it is characterized in that, at least one described preset condition further includes the second default item
Part, second preset condition include:
The historical traffic of the multiple target wireless terminals is greater than or equal to preset flow；Or,
The multiple target wireless terminals are that historical traffic comes in all wireless terminals for meet first preset condition
Preceding second preset number wireless terminal.
5. method as claimed in any of claims 2 to 4, which is characterized in that the historical traffic includes with next
It is a or multiple:
History is eated dishes without rice or wine holding time, historical data amount and history message amount.
6. the method according to any one of claim 3 to 5, which is characterized in that at least one described preset condition is also
Including third preset condition, the third preset condition includes:
The multiple target wireless terminals are less than or equal to pre-determined distance at a distance from the wireless access point.
7. a kind of wireless access point, which is characterized in that the wireless access point includes:
Transmission unit, for sending multiple silent parameters, the multiple target wireless terminals and institute to multiple target wireless terminals
It states multiple silent parameters to correspond, the multiple target wireless terminals are associated with the wireless access point, the multiple silence
Each of parameter includes silence period and quiet interval, the when a length of institute of silence period described in any one silent parameter
The sum of duration and the duration of non-silence period of quiet interval are stated, the quiet interval, which refers to, does not allow corresponding Target Wireless
Terminal sends the period of message, and the non-silence period refers to the time for allowing corresponding target wireless terminals to send message
Section, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
8. wireless access point according to claim 7, which is characterized in that each target in the multiple target wireless terminals
The duration of the non-silence period of wireless terminal is based on the historical traffic of corresponding target wireless terminals.
9. wireless access point according to claim 7 or 8, which is characterized in that the multiple target wireless terminals for institute
State the wireless terminal for meeting at least one preset condition in the associated all wireless terminals of wireless access point, described at least one is pre-
If condition includes the first preset condition, first preset condition includes:
The signal strength of the multiple target wireless terminals is greater than or equal to the first preset signal strength；Or,
The signal strength of the multiple target wireless terminals is respectively higher than or equal to respective history maximum signal and second
The difference of preset signal strength；Or,
The multiple target wireless terminals are before coming with signal strength in the associated all wireless terminals of the wireless access point
The wireless terminal of first preset number.
10. wireless access point according to claim 9, which is characterized in that at least one described preset condition further includes
Two preset conditions, second preset condition include:
The historical traffic of the multiple target wireless terminals is greater than or equal to preset flow；Or,
The multiple target wireless terminals are that preceding second is come in all wireless terminals for meet first preset condition in advance
If number wireless terminal.
11. the wireless access point according to any one of claim 8 to 10, which is characterized in that the historical traffic packet
Include following one or more:
History is eated dishes without rice or wine holding time, historical data amount and history message amount.
12. the wireless access point according to any one of claim 9 to 11, which is characterized in that described at least one is pre-
If condition further includes third preset condition, the third preset condition includes:
The multiple target wireless terminals are less than or equal to pre-determined distance at a distance from the wireless access point.
13. a kind of wireless communication system, which is characterized in that the system comprises wireless access point and multiple target wireless terminals,
The wireless access point is associated with the multiple target wireless terminals；
The wireless access point, for sending multiple silent parameters to multiple target wireless terminals, the multiple Target Wireless is whole
End and the multiple silent parameter correspond, and the multiple target wireless terminals are associated with the wireless access point, described more
A silence each of parameter includes silence period and quiet interval, silence period described in any one silent parameter when
The sum of duration and the duration of non-silence period of a length of quiet interval, the quiet interval, which refers to, does not allow corresponding mesh
The period that wireless terminal sends message is marked, the non-silence period, which refers to, allows corresponding target wireless terminals to send message
Period, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals；
The multiple target wireless terminals, for according to the respective silent parameter, only the respective non-silence period to
The wireless access point sends wireless signal.
14. a kind of wireless access point, which is characterized in that the wireless access point includes processor and wireless interface, the processing
Device is used to send multiple silent parameters to multiple target wireless terminals with the wireless interface, the multiple target wireless terminals with
The multiple silence parameter corresponds, and the multiple target wireless terminals are associated with the wireless access point, the multiple quiet
Each of silent parameter includes silence period and quiet interval, silence period described in any one silent parameter when it is a length of
The sum of the duration of the quiet interval and the duration of non-silence period, the quiet interval refer to do not allow corresponding target without
Line terminal sends the period of message, the non-silence period refer to allow corresponding target wireless terminals send message when
Between section, the non-silence period of any two target wireless terminals is not overlapped in the multiple target wireless terminals.
15. a kind of computer program product, which is characterized in that the computer program holds wireless access point when executed
The following operation of row:
Multiple silent parameters, the multiple target wireless terminals and the multiple silent parameter are sent to multiple target wireless terminals
It corresponds, the multiple target wireless terminals are associated with the wireless access point, each of the multiple silence parameter
Including silence period and quiet interval, silence period described in any one silent parameter when a length of quiet interval when
Long and the non-silence period the sum of duration, the quiet interval, which refers to, does not allow corresponding target wireless terminals to send message
Period, the non-silence period refer to the period for allowing corresponding target wireless terminals to send message, the multiple mesh
The non-silence period of any two target wireless terminals is not overlapped in mark wireless terminal.
Priority Applications (2)
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| CN201710891586.9A CN109561449A (en) | 2017-09-27 | 2017-09-27 | A kind of wireless communications method and relevant device |
| PCT/CN2018/102825 WO2019062434A1 (en) | 2017-09-27 | 2018-08-29 | Wireless communication method and related device |
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| CN201710891586.9A CN109561449A (en) | 2017-09-27 | 2017-09-27 | A kind of wireless communications method and relevant device |
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| WO2021072772A1 (en) * | 2019-10-18 | 2021-04-22 | 深圳市欢太科技有限公司 | Wireless communication method and apparatus, electronic device and storage medium |
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