CN103002515B - Data transmission method and device under silent mode indicating means, silent mode - Google Patents
Data transmission method and device under silent mode indicating means, silent mode Download PDFInfo
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- CN103002515B CN103002515B CN201110276245.3A CN201110276245A CN103002515B CN 103002515 B CN103002515 B CN 103002515B CN 201110276245 A CN201110276245 A CN 201110276245A CN 103002515 B CN103002515 B CN 103002515B
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- 238000010586 diagram Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
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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
The embodiment of the present invention provides silent mode indicating means, the data transmission method under silent mode and device, system, to make full use of band resource, the transmission rate of lifting system.Methods described includes：Into Basic Service Set, website sends silent element message, so that website knows silence period available operating frequency band according to the silent element message in the Basic Service Set, does not send data in the silence period or sends data using the available operating frequency band.Compared with website prohibits the use of whole working band in the silence period in prior art instruction Basic Service Set, silent mode indicating means provided in an embodiment of the present invention makes website in Basic Service Set send data in available operating frequency band in the silence period, band resource is taken full advantage of, improves the transmission rate of whole system.
Description
Technical field
The present invention relates to the data transfer under wireless communication field, more particularly to silent mode indicating means, silent mode
Method and device.
Background technology
Basic Service Set (Basic Service Set, BSS) is the element of a WLAN, by
Within a certain particular coverage and the website (Station, hereafter abbreviated with STA) with certain association forms.Stood in BSS
The most basic form of point association is terminal or the website mutual direct communication in an ad-hoc network, this most basic correlation form
BSS be otherwise known as independent basic service set (Independent Basic Service Set, IBSS).IBSS is at BSS station
Uncommon in point correlation form, the common form of station associate is that each STA therein and a full-time administrative are basic in BSS
The central location of services set is associated, and the central location is referred to as access point (AP, Access Point), and establishes on AP peripheries
BSS be referred to as the BSS with infrastructure.The BSS implemented with basis can pass through distributed system by their AP
(Distributed System, DS) is connected with each other, so as to realize the communication of terminal room in the BSS implemented on different band basis.
Concentrated in basic service, as maker (the Defines mechanisms for of BSS dynamic bandwidth selection mechanism
Dynamic Frequency Selection Owner, DFSO) situations such as needing to measure the interference of its bandwidth of operation and noise
When, BSS all STA where can requiring it keep silent within some period, i.e. do not send any data；DFSO leads to
Often served as by AP.
In order to allow all STA in BSS to keep silent, a kind of method that prior art provides is STAs of the DFSO to BSS
Silent element (Quiet Element, QE) is sent, the QE is indicated upcoming silent relevant parameter, its lattice
Formula as shown in Figure 1, wherein：
" component identification (Element ID) " field (takes 1 byte), for unique mark silence element；
" length (Length) " field (takes 1 byte), for how many eight positions to be gone back after representing the length field
Group；
" silence counts (Quiet Count) " field (taking 1 byte), when the silence for indicating the silence period starts
Between point after how many individual target beacon (Beacon) transmission times；
" silence period (Quiet Period) " field (takes 1 byte), for indicating that this silence is periodically quiet
Silent or aperiodicity is silent, and its value represents this silence to be disposable silent when being " 0 ", when its value is not 0, table
Show the silence to be periodically silent, the silent cycle is so multiple target beacon transmission times corresponding to the numerical value；
" silence durations (Quiet Duration) " field (takes 2 bytes), continues for representing once silent
Time；
" silence skew (Quiet Offset) " field (takes 2 bytes), for indicate the silence period it is silent start when
Between point Quiet Count fields instruction individual target beacon transmission times after how long, corresponding to silent offset field
Duration is shorter than 1 target beacon transmission times interval.
In silent element, silent count area, silent offset field and silence durations field together, can indicate
Silent start time, finish time and the duration of silence period.
Receive the STA of the silent element, by according to the relevant parameter in silent element, such as " silence counts, it is silent partially
The content of shifting and silence durations " field, keep silent within the corresponding time.
Inventor has found by studying for a long period of time with practice, the defects of the silent indicating means that above-mentioned prior art provides
It is：Once STA receives silent element, the STA will keep silent on whole working band, and in fact, and not all
Silence is required for disturbing whole working band and the measurement of noise, and in the case, the part without measurement works frequently
Band is still to use, and therefore, the silent indicating means that prior art provides is not high to the utilization rate of working band.
The content of the invention
The embodiment of the present invention provides silent mode indicating means, data transmission method and device under silent mode, to fill
Divide and utilize band resource, the transmission rate of lifting system.
The embodiment of the present invention provides a kind of silent mode indicating means, and methods described includes：
Into Basic Service Set, website sends silent element message, so that website is according to described quiet in the Basic Service Set
Silent element message knows silence period available operating frequency band, does not send data in the silence period or uses the available work
Frequency band sends data；
The silent element message includes at least one frequency band field, when the content of the frequency band field is used to indicate silence
Between website available operating frequency band or unavailable working band in the Basic Service Set.
The embodiment of the present invention provides the data transmission method under a kind of silent mode, and methods described includes：
Website receives silent element message in Basic Service Set, and the silent element message includes at least one frequency band word
Section, the content of the frequency band field are used to indicate described in the silence period website available operating frequency band or unavailable in Basic Service Set
Working band；
The website knows silence period available operating frequency band according to the silent element message, the silence period not
The available operating frequency band for sending data or being indicated using the frequency band field sends data.
The embodiment of the present invention provides a kind of silent mode instruction device, and described device is Basic Service Set central location, institute
Stating device includes：
Sending module, for the website transmission silent element message into Basic Service Set, so that the basic service
Website knows silence period available operating frequency band according to the silent element message in collection, and data are not sent in the silence period
Or send data using available operating frequency band；
The silent element message includes at least one frequency band field, when the content of the frequency band field is used to indicate silence
Between website available operating frequency band or unavailable working band in the Basic Service Set.
The embodiment of the present invention provides the data transmission device under a kind of silent mode, and described device is to be stood in Basic Service Set
Point, described device include：
Receiving module, for receiving silent element message, the silent element message includes at least one frequency band field, institute
The content for stating frequency band field is used to indicate website available operating frequency band or unavailable work in Basic Service Set described in the silence period
Frequency band；
Data sending processing module, the silent element message for being received according to the receiving module know that the silence period can
With working band, the available operating frequency band for not sending data in the silence period or being indicated using the frequency band field sends number
According to.
It was found from the embodiments of the present invention, due into Basic Service Set silent element message can be sent by website, and it is quiet
Silent element message includes at least one frequency band field, and the content of the frequency band field is used to indicate basic service described in the silence period
Website available operating frequency band or unavailable working band in collection.Therefore, with website in prior art instruction Basic Service Set quiet
The silent time prohibits the use of whole working band to compare, and silent mode indicating means provided in an embodiment of the present invention makes Basic Service Set
Interior website sends data in the silence period in available operating frequency band, takes full advantage of band resource, improves whole system
Transmission rate.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in prior art or embodiment description
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those skilled in the art, other accompanying drawings can also be obtained such as these accompanying drawings.
Fig. 1 is the frame structure schematic diagram for the silent element message that prior art provides；
Fig. 2 is silent mode indicating means schematic flow sheet provided in an embodiment of the present invention；
Fig. 3 a are the frame structure schematic diagrames of silent element message provided in an embodiment of the present invention；
Fig. 3 b are the frame structure schematic diagrames for the silent element message that another embodiment of the present invention provides；
Fig. 4 is provided in an embodiment of the present invention using available work frequency in 8 silent element messages of binary values expression
The instruction schematic diagram of band；
Fig. 5 is the frame structure schematic diagram of the silent element message for the extension that another embodiment of the present invention provides；
Fig. 6 is that the website provided in an embodiment of the present invention to Basic Service Set sends silent element message schematic diagram；
Fig. 7 is the data transmission method schematic flow sheet under silent mode provided in an embodiment of the present invention；
Fig. 8 is the data transmission method schematic diagram under the silent mode that another embodiment of the present invention provides；
Fig. 9 is silent mode instruction device structural representation provided in an embodiment of the present invention；
Figure 10 is the silent mode instruction device structural representation that another embodiment of the present invention provides；
Figure 11 is the data transmission device structural representation under silent mode provided in an embodiment of the present invention；
Figure 12 is the data transmission system structural representation under silent mode provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those skilled in the art are obtained, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of silent mode indicating means, and its executive agent can be dynamic bandwidth selection mechanism
Maker DFSO, DFSO generally served as by Basic Service Set central location or access point (Access Point, AP), do not having
When Basic Service Set central location or access point, it can also be served as by some website in Basic Service Set.Methods described include to
Website sends silent element message in Basic Service Set, so that website is according to the silent element message in the Basic Service Set
Know silence period available operating frequency band, do not send data in the silence period or send data using available operating frequency band,
The silent element message includes at least one frequency band field, and the content of the frequency band field is used to indicate base described in the silence period
Website available operating frequency band or unavailable working band in this services set.
Accompanying drawing 2 is referred to, is a kind of silent mode indicating means schematic flow sheet provided in an embodiment of the present invention, it is performed
Main body can be Basic Service Set central location, for example, access point (Access Point, AP) etc..The silent mould of the example of accompanying drawing 2
Formula indicating means mainly includes step：
S201, into Basic Service Set, website sends silent element message so that in the Basic Service Set website according to
The silent element message knows silence period available operating frequency band, does not send data in the silence period or use can recruitment
Make frequency band and send data.
As it was previously stated, website still can use part working band within the silence period, Basic Service Set, can in part
With sending data on working band.For example, the working band that original system uses is 20MHz or 40MHz, work as system evolved
Afterwards, it can reach 160MHz using the maximum bandwidth of working band.For such a wide band system, local channel is by dry
Disturb, the influence of noise, so as to cause system transfer rate to decline.When need to be disturbed and the working band of influence of noise carry out
During measurement, into Basic Service Set, website sends the silent element message, i.e. when the part working band of system is disturbed,
During the influence of noise, interference and noise situations that the DFSO of Basic Service Set divides on working band for measurement portion, pass through silence
Which bandwidth the element message instruction silence period can use.Silence period, STA are avoided existing in available band transmitting data
There is the waste of available band resource caused by Whole frequency band silence in technology.
Therefore, in embodiments of the present invention, the instruction of website available operating frequency band in silence period Basic Service Set is sealed
Loaded in the silent element message, the instruction of available operating frequency band is used to indicate that website can use in silence period Basic Service Set
Which unavailable working band of website in which working band, or instruction silence period Basic Service Set.It is understood that
Website available operating frequency band is a part for whole working band in Basic Service Set, and it is unavailable with website in Basic Service Set
Working band, for example, the working band that AP needs to measure in Basic Service Set is (for example, be disturbed the work frequency with influence of noise
Band etc.) form whole working band.
S202, receive website in the Basic Service Set and use the data that available operating frequency band is sent.
At the same time, Basic Service Set central location is to unavailable working band, for example, being disturbed the work with influence of noise
Measured as frequency band.
In embodiments of the present invention, can be by sending the modes such as broadcast frame, multicast frame or unicast frame, by the silent member
Plain message is sent to website in the Basic Service Set, wherein, broadcast frame can be beacon frame (Beacon frame), multicast frame
Can be multi-user data frame (Data frame), unicast frame can be probing response frame (Probe Response frame) or
Single user data frame, that is, pass through broadcast beacon frame, uni-cast probe response frame, single user data frame or multicast multi-user data frame
Mode, aforementioned encapsulation is had available operating frequency band instruction silent element message carry the beacon frame, probing response frame,
In single user data frame or multi-user data frame, send to website in the Basic Service Set.
The situation of the silent element message is sent for multicast frame or unicast frame mode, in embodiments of the present invention, can
It is same with this to be that the number of the website in the Basic Service Set is less or only carried out in a Basic Service Set during website
When, it is desirable to website is fed back in corresponding Basic Service Set.
As one embodiment of the invention, silent element message includes at least one frequency band (Band) field, by silence
The instruction of website available operating frequency band is filled at least one frequency band field in time Basic Service Set.Such as accompanying drawing 3a institutes
Show, frequency band (Band) field (taking 1 byte) is only included in silent element message.One frequency band field and institute
Other fields in silent element message are stated, for example, silent count (Quiet Count) field (taking 1 byte), silent week
It is phase (Quiet Period) field (take 1 byte), silent skew (Quiet Offset) field (taking 2 bytes), quiet
Silent mark (Element ID) field (taking 1 byte), silence durations (Quiet Duration) field (take 2
Byte) and length (Length) field (take 1 byte) etc. form a silent element message, silent count area, silence
The function or implication of period field, silent offset field, Silence Identification field, silence durations field and length field etc. point
The silent count area do not mentioned with background of invention, silence period field, silent offset field, Silence Identification field,
Silence durations field is identical with the function or implication of length field etc., does not repeat herein.
For accompanying drawing 3a, if the silence of silent element message instruction is (specifically by the silence period field of silent element message
Instruction, for example, the field is " 1 ") be periodic quiet, then the silent element message of accompanying drawing 3a examples can also include silent time
Number (Quiet Times) field (takes 1 byte), as shown in fig. 3b.The content of the silent time field of accompanying drawing 3b examples
For indicating by stopping silence after how many times periodic quiet.
It should be noted that in embodiments of the present invention, frequency band field and silent time field are not necessarily located in silent member
Can be any position in silent element message after length field after the silent offset field of plain message, accompanying drawing 3a
It is only one with accompanying drawing 3b to illustrate.
If it is multiple in the silent element message increase to increase at least one frequency band field in the silent element message
Frequency band field, then it is described at least one as the instruction of website available operating frequency band in silence period Basic Service Set is filled into
The embodiment of frequency band field, increase multiple frequency band fields in the silent element message (each frequency band field takes 1 byte)
And other field groups that group number is equal with the number of the multiple frequency band field, it will be stood in the silence period Basic Service Set
Point available operating frequency band multiple instructions be filled into the multiple frequency band field respectively, wherein, other field groups it is each
Other fields of group include silent count area, silence period field, silence durations field and silent offset field, i.e., described
The silent element message of extension includes group number other field groups equal with the multiple frequency band field number, other described fields
Each group of other fields of group include silent count area, silence period field, silence durations field and silent offset word
Section, the multiple frequency band field form a silent element message with other described field groups.As shown in Figure 5, if
Silent element message increases by two frequency band fields, such as (Band1) field of frequency band 1 and frequency band 2 (Band2) field, then correspondingly
Increase by two groups of other fields, including 1 (Quiet Count1) of silent the counting, (Quiet of silence period 1 in silent element message
Period1), silence durations 1 (Quiet Duration1), 1 (Quiet Offset1) field of silent skew (first group its
His field) and silent count 2 (Quiet Count2), silence period 2 (Quiet Period2), silence durations 2
(Quiet Duration2), 2 (Quiet Offset2) fields (second group of other field) of silent skew.The example of accompanying drawing 5 it is quiet
Silent count area, silence period field, silent offset field, Silence Identification field, silence durations field and length field
Silent count area, the silence period word mentioned respectively with background of invention Deng occupancy byte number and function or implication
Section, silent offset field, Silence Identification field, silence durations field and length field etc. take byte number and function or
Implication is identical, does not repeat herein.
In the above-described embodiments, increased multiple frequency band fields share a Silence Identification with other described field groups
(Element ID) and length (Length) field, i.e. increased multiple frequency band fields form one with other described field groups
The silent element message of the extension.In this way, can it be indicated more in the multiple silence of silent element message instruction of an extension
The website into Basic Service Set is only needed to send a silent element message when secondary silent, it is compared with prior art, same in instruction
Reduce the number for sending silent element message during the silence of sample number, so as to improve system effectiveness and resource utilization.
It should be noted that in embodiments of the present invention, frequency band fields are not necessarily located in the quiet of silent element message
Can be any position in silent element message after length field after silent offset field, accompanying drawing 5 is only one and shown
Example explanation.
In an embodiment of the invention, frequency band field binary-capable value, such as 8 binary value instructions are silent
Website available operating frequency band or unavailable working band in Basic Service Set described in time, i.e., fill 8 two in frequency band field and enter
The value of system, each 8 binary values are with regard to website available operating frequency band in corresponding expression silence period Basic Service Set or not
Available operating frequency band.As shown in table one (table bracket represents that corresponding binary value is converted into metric value), except the decimal system
Value 4 to 255 retain use again from now on outside, metric value 0,1,2 and 3 indicates respectively no available operating frequency band, main 20MHz
(megahertz) channel can use, available and main 80MHz (megahertz) channel of main 40MHz (megahertz) channel can use, now, accordingly
Unavailable working band (for example, be disturbed with influence of noise and need tested working band) be respectively whole work frequency
Band, the frequency band outside main 20MHz (megahertz) channel, the frequency band outside main 40MHz (megahertz) channel and auxiliary 80MHz (megahertz
Hereby) channel.
Table one
And for example shown in table two (table bracket represents that corresponding binary value is converted into metric value), except metric value
3 to 255 retain use again from now on outside, metric value 0,1 and 2 indicate respectively no available operating frequency band, main 80MHz (megahertz
Hereby) channel is available and auxiliary 80MHz (megahertz) channel can use, now, corresponding unavailable working band (for example, be disturbed and
Influence of noise and need tested frequency band) be respectively whole working band, auxiliary 80MHz (megahertz) channel and main 80MHz (million
Hertz) channel.
Table two
And for example shown in table three (table bracket represents that corresponding binary value is converted into metric value), except metric value
Outside 1 to 254 retains and uses again from now on, metric value 0 and 255 indicate respectively no available operating frequency band and main 80MHz (megahertz
Hereby) channel, now, corresponding unavailable working band (for example, be disturbed with influence of noise and need tested frequency band) point
Wei not whole working band and auxiliary 80MHz (megahertz) channel.
Table three
Also as shown in table four (table bracket represents that corresponding binary value is converted into metric value), except metric value
Outside 5 to 255 reservations are used again from now on, metric value 0,1,2,3 and 4 indicates respectively no available operating frequency band, main 20MHz
(megahertz) channel, main 40MHz (megahertz) channel, main 80MHz (megahertz) channel and auxiliary 80MHz (megahertz) channel, this
When, corresponding unavailable working band (for example, be disturbed with influence of noise and need tested frequency band) be respectively whole work
Make the frequency band outside frequency band, main 20MHz (megahertz) channel, the frequency band outside main 40MHz (megahertz) channel, auxiliary 80MHz (million
Hertz) channel and main 80MHz (megahertz) channel.
Table four
It should be noted that in table one provided in an embodiment of the present invention, table two, table three and table four, Basic Service Set is most
The channel width (maximum bandwidth of i.e. whole working band) supported greatly reaches 160MHz (megahertz).160MHz channel can be with
It is continuous 160MHz channels, can also two continuous 80MHz channels.160MHz channel can be divided into two 80MHz letters
Road, one of them is referred to as main 80MHz channels, and another is then referred to as auxiliary 80MHz channels；Main 80MHz channels can be divided into again
Two 40MHz channels, one of them is referred to as main 40MHz channels, and another is then referred to as auxiliary 40MHz channels；Main 40MHz channels
Two 20MHz channels can be divided into again, one of them is referred to as main 20MHz channels, and another is then referred to as auxiliary 20MHz channels.
In another embodiment, frequency band field can be also used described in bitmap (Bitmap) the instruction silence period in Basic Service Set
Website available operating frequency band or unavailable working band.As shown in Figure 4, available work frequency is represented using 8 binary values
The instruction of band, i.e. " 1 " in the binary value of frequency band field filling, each binary value accordingly represent that silence period is basic
Website available operating frequency band in services set, " 0 " accordingly represent the unavailable working band of website in silence period Basic Service Set, or
Person, conversely, " 0 " in each binary value accordingly represents website available operating frequency band in silence period Basic Service Set, " 1 "
It is just corresponding to represent the unavailable working band of website in silence period Basic Service Set.For example, it is assumed that the binary value of frequency band field
For 11110000, then it represents that 4 channels can use before the silence period.It is readily appreciated that, also other combinations, is only herein
One illustration.
It will be appreciated by those skilled in the art that must be, for table one to table four and accompanying drawing 4, the content of frequency band field also may be used
To indicate the unavailable working band of website in Basic Service Set, correspondingly, the working band outside unavailable working band is
Available operating frequency band.Therefore, website according to the instruction of unavailable working band, can know available work frequency in Basic Service Set
Band.
It was found from the silent mode indicating means of the above-mentioned example of accompanying drawing 2, due to can into Basic Service Set website send it is quiet
Silent element message, and silent element message includes at least one frequency band field, the content of the frequency band field is used to indicate silence
Website available operating frequency band in Basic Service Set described in time.Therefore, with website in prior art instruction Basic Service Set quiet
The silent time prohibits the use of whole working band to compare, and silent mode indicating means provided in an embodiment of the present invention makes Basic Service Set
Interior website sends data in the silence period in available operating frequency band, takes full advantage of band resource, improves whole system
Transmission rate.
Accompanying drawing 6 is that the website provided in an embodiment of the present invention into Basic Service Set sends silent element message schematic diagram.
In accompanying drawing 6, access point AP, can be by carrying in beacon frame (Beacon frame), visiting as DFSO by silent element message
The mode for surveying response frame (Probe Response frame) or data frame (Data frame) is sent out to the website of Basic Service Set
Send silent element message.
For example, by broadcast beacon frame, send silent element message and once silence is scheduled；Website 1 in Basic Service Set
(STA1) and in Basic Service Set website 2 (STA2) each preserves each word in the silent element message after received beacon frame
The relevant parameter that segment table shows；And for example, website 3 (STA3) sends probe request (Probe Request to AP in Basic Service Set
Frame), after AP receives probe request, to STA3 feedback detections response frame (Probe Response frame), base is informed
The relevant parameter that each field represents in website 3 (STA3) silent element message in this services set；For another example, AP can also sent
To the silent element message of carrying in website in Basic Service Set 2 (STA2) data frame (Data frame), and require basic clothes
Website 2 (STA2) feedback in business collection, website 2 (STA2) is to AP feedback block acknowledgement frames (Block in Basic Service Set
Acknowledge frame, BA) or acknowledgement frame (Acknowledge frame, ACK), just whether BA/ACK to AP for feeding back
Really it demodulate corresponding data and information.
It should be noted that the website into Basic Service Set shown in accompanying drawing 6 is sent in the embodiment of silent element message,
In the silence period, AP can only receive data, not send data, i.e. in the silence period, except into Basic Service Set, website is sent
Outside silent element message, AP feeds back without the transmission or the data to receiving of any data, for example, to basic
Website sends probing response frame etc. in services set；On the other hand, website (STA) also may be used within the silence period, Basic Service Set
Fed back with being prohibited requirement AP websites into the Basic Service Set.
Accompanying drawing 7 is referred to, is the data transmission method schematic flow sheet under silent mode provided in an embodiment of the present invention, it is main
To include step：
S701, website receives silent element message in Basic Service Set.
In the present embodiment, the silent element message that website receives in the Basic Service Set is by former silent element message
Expand, the silent element message of extension includes at least one frequency band field, and the content of the frequency band field is quiet for indicating
Website available operating frequency band or unavailable working band in Basic Service Set described in the silent time, as shown in accompanying drawing 3 or accompanying drawing 5, its
In, the implication of available operating frequency band or unavailable working band illustrates in previous embodiment, does not repeat herein.Accompanying drawing 3 or
Silent count area, silence period field, silent offset field, Silence Identification field, the silence durations word of the example of accompanying drawing 5
Silent count area, the silence period word that the function or implication of section and length field etc. are mentioned with background of invention respectively
Section, silent offset field, Silence Identification field, silence durations field are identical with the function or implication of length field etc., this
Place does not repeat.
The silent element message of extension by Basic Service Set central location, for example, access point AP etc. by send broadcast frame,
The mode of multicast frame or unicast frame, the silent element message is sent to website in the Basic Service Set.For example, by wide
Broadcast beacon frame (Beacon frame), uni-cast probe response frame (Probe Response frame), single user data frame (Data
Frame) or multicast multi-user data frame mode, aforementioned encapsulation is had to the silent element of the extension of the instruction of available operating frequency band
Message is carried in the beacon frame, probing response frame, single user data frame or multi-user data frame, is sent to the basic clothes
Website in business collection.
The situation of the silent element message, in the present embodiment, Ke Yishi are sent for multicast frame or unicast frame mode
The number of website is less in the Basic Service Set or is only carried out in a Basic Service Set during website, at the same time,
Website in corresponding Basic Service Set is asked to be fed back.
S702, website knows silence period available operating frequency band according to the silent element message in Basic Service Set,
The available operating frequency band that the silence period is not sent data or indicated using the frequency band field sends data.
In embodiments of the present invention, so-called " transmission opportunity " refers to STA or AP a certain access style (Access
Category, AC) one section of duration for being used to transmit the AC is obtained, this duration is referred to as a transmission opportunity (Transmit
OPportunity, TXOP).
As one embodiment of the invention, if the transmission opportunity that website obtains in the Basic Service Set and the silent member
The silence period that silent count area, silent offset field and the silence durations field carried in plain message indicates collectively has
Overlapping, then website sends data in the overlapping time using the available operating frequency band of the instruction in the Basic Service Set,
Otherwise, data are not sent in the silence period.
As shown in Figure 8, DFSOs of the access point AP as Basic Service Set, by broadcasting a beacon frame (Beacon
Frame silent element message) is sent, is scheduled silent three times.Stood in Basic Service Set in website 1 (STA1), Basic Service Set
Website 3 (STA3) each preserves the silence of silent needs three times after beacon frame is received in 2 (STA2) of point and Basic Service Set
The relevant parameter that each field represents in element message (a silent element message).
Before silent for the first time, website 1 (STA1) obtains TXOP in Basic Service Set, and the TXOP and first time are silent
Silence durations section partly overlap.Website 1 (STA1) obtains the chance in overlapping time transmission data in Basic Service Set,
The available work frequency range that available band (Band) field indicates in silent element message is used to be sent to AP in the overlapping time
Data.
Second of silence period, website 2 (STA2) obtains TXOP, and this and the TXOP and second in Basic Service Set
Silent silence durations section partly overlaps.Website 2 (STA2) is obtained in overlapping time transmission data in Basic Service Set
Chance, the available work frequency range that available band (Band) field indicates in silent element message is used in the overlapping time to AP
Send data.
In the present embodiment, website disappears according to the transmission opportunity of acquisition and the silent element of the extension in Basic Service Set
Breath, after the available operating frequency band indicated using the frequency band field sends data, if silence durations field instruction
Silence durations terminate, then the website sends data using Whole frequency band.By taking accompanying drawing 8 as an example, before third time is silent, base
Website 3 (STA3) obtains TXOP in this services set, and the TXOP includes the silent silence durations section of third time.Basic service
Website 3 (STA3) uses the available work frequency that available band (Band) field indicates in silent element message in the silence period in collection
Section sends data to AP.
It should be noted that in the embodiment of data transmission method under silent mode shown in accompanying drawing 8, in silence
Between, AP can only receive data, not send data, i.e. in the silence period, AP is without the transmission of any data or to receiving
Data fed back, for example, website sends probing response frame etc. into Basic Service Set；On the other hand, in the silence period,
Website (STA) can also be prohibited requirement AP and be fed back to the website in Basic Service Set.
It was found from the data transmission method under the silent mode of the example of accompanying drawing 8, because website can root in Basic Service Set
The silent element message of the extension sent according to the transmission opportunity and Basic Service Set central location of acquisition, in the silence period, use can
Data are sent with working band.Therefore, the data transmission method under silent mode provided in an embodiment of the present invention makes basic service
Website sends data in the silence period in available operating frequency band in collection, takes full advantage of band resource, improves whole system
Transmission rate.
Accompanying drawing 9 is referred to, is silent mode instruction device structural representation provided in an embodiment of the present invention.The device can be with
It is the central location of Basic Service Set, for example, access point AP etc..For convenience of description, illustrate only and the embodiment of the present invention
Related part.The silent mode instruction device of the example of accompanying drawing 9 includes sending module 901, for the website into Basic Service Set
Silent element message is sent, so that transmission opportunity and the silent element message of the website according to acquisition in the Basic Service Set
Know silence period available operating frequency band, do not send data in the silence period or send data using available operating frequency band,
The silent element message includes at least one frequency band field, and the content of the frequency band field is used to indicate base described in the silence period
Website available operating frequency band or unavailable working band in this services set.It is understood that website can use in Basic Service Set
Working band is a part for whole working band, it with Basic Service Set in the unavailable working band of website, for example, basic clothes
The working band that AP needs to measure in business collection forms whole working band.
In an alternative embodiment of the invention, sending module 901 can be by sending the side such as broadcast frame, multicast frame or unicast frame
Formula, the silent element message is sent to website in the Basic Service Set, wherein, broadcast frame can be beacon frame, multicast
Frame can be multi-user data frame, and unicast frame can be probing response frame or single user data frame, i.e. when needing to can not recruitment
When making frequency band (for example, being disturbed the working band with influence of noise) and measuring, pass through broadcast beacon frame, uni-cast probe responds
The mode of frame, single user data frame or multicast multi-user data frame, aforementioned encapsulation is there is the extension of the instruction of available operating frequency band
Silent element message carry in the beacon frame, probing response frame, single user data frame or multi-user data frame, send extremely
Website in the Basic Service Set.
It should be noted that in the embodiment of above silent mode instruction device, the division of each functional module is only to lift
Example explanation, can be as needed in practical application, such as the convenient consideration of the realization of the configuration requirement or software of corresponding hardware,
And above-mentioned function distribution is completed by different functional module, will the internal structure of the silent mode instruction device be divided into
Different functional module, to complete all or part of function described above.Moreover, in practical application, in the present embodiment
Corresponding functional module can be realized by corresponding hardware, can also perform corresponding software by corresponding hardware and complete, example
Such as, foregoing sending module, can send the hard of silent element message function with the foregoing website into Basic Service Set of execution
Part, for example, transmitter or be able to carry out corresponding computer program so as to complete the general processor of foregoing function or
Other hardware units (each embodiment that this specification provides can all apply foregoing description principle).
, can be by increasing at least one frequency band in silent element message in the silent mode instruction device of the example of accompanying drawing 9
Field, the instruction of website available operating frequency band in silence period Basic Service Set is filled at least one frequency band field,
At least one frequency band field forms one with other fields in silence durations field and the silent element message
The silent element message of individual extension, other fields in the silent element message include silent count area, silence period word
Section, silence durations field and silent offset field, silent count area herein, silence period field, silent offset word
The function or implication of section, Silence Identification field, silence durations field and length field etc. respectively with background of invention
The silent count area mentioned, silence period field, silent offset field, Silence Identification field, silence durations field and
The function or implication of length field etc. are identical, do not repeat herein.
As depicted in figure 3 a, at least one frequency band (Band) field can be increased (equivalent to increase in silent element message
One domain), for example, only increasing a frequency band field.Its at least one frequency band field and the silent element message
His field, for example, silent count (Quiet Count), silence period (Quiet Period), silence durations (Quiet
Duration), silent skew (Quiet Offset), Silence Identification (Element ID) and length (Length) field etc. are formed
The silent element message of one extension.
For accompanying drawing 3a, if the silence of silent element message instruction is (specifically by the silence period field of silent element message
Instruction, for example, the field is " 1 ") be periodic quiet, then the silent element message of accompanying drawing 3a examples can also include silent time
Number (Quiet Times) field, as shown in fig. 3b.The content of the silent time field of accompanying drawing 3b examples is used to indicate through excessive
Stop after few second periodicity is silent silent.
If it is to increase multiple frequency band fields in silent element message to increase at least one frequency band field in silent element message,
Then at least one frequency band field is filled into as by the instruction of website available operating frequency band in silence period Basic Service Set
Embodiment, multiple frequency band fields and group number and the number phase of the multiple frequency band field can be increased in silent element message
Deng other field groups, multiple instructions of website available operating frequency band in the silence period Basic Service Set are filled into respectively
The multiple frequency band field, wherein, each group of other field groups other fields include silent count area, silence period
Field, silence durations field and silent offset field, i.e., the silent element message of described extension include group number with it is described more
Other equal field groups of individual frequency band field number, each group of other field groups other fields include silent counting word
Section, silence period field, silence durations field and silent offset field, increased multiple frequency band fields with it is described its
His field groups form the silent element message of an extension.As shown in Figure 5, if increasing by two frequencies in silent element message
Band field, such as (Band1) field of frequency band 1 and frequency band 2 (Band2) field, then correspondingly, increase by two groups in silent element message
Other fields, including 1 (Quiet Count1) of silent counting, silence period 1 (Quiet Period1), silence durations 1
(Quiet Duration1), 1 (Quiet Offset1) field (first group of other field) of silent skew and silent counting 2
(Quiet Count2), silence period 2 (Quiet Period2), silence durations 2 (Quiet Duration2), silence are partially
Move 2 (Quiet Offset2) fields (second group of other field).
It should be noted that in embodiments of the present invention, increased frequency band field and silent time field are not necessarily located in
Can be any position in silent element message after length field after the silent offset field of silent element message.
In an embodiment of the invention, frequency band field binary-capable value, such as 8 binary value instructions are silent
Website available operating frequency band or unavailable working band in Basic Service Set described in time, i.e., fill 8 two in frequency band field and enter
The value of system, each 8 binary values just the corresponding available working bands of website for representing silence period Basic Service Set or
Unavailable working band.As shown in foregoing table one (table bracket represents that corresponding binary value is converted into metric value), remove
Metric value 4 to 255 retains use again from now on outside, metric value 0,1,2 and 3 indicate respectively no available operating frequency band,
Main 20MHz (megahertz conspicuous) channel, main 40MHz (megahertz) channel and main 80MHz (megahertz) channel, now, accordingly not
Available operating frequency band (for example, be disturbed needs tested working band with influence of noise) be respectively whole working band,
The frequency band and auxiliary 80MHz (megahertz) outside frequency band, main 40MHz (megahertz) channel outside main 20MHz (megahertz) channel
Channel.
Other more embodiments can be found in table two, table three and table four and its corresponding explanatory note part, not do herein
Repeat.
In another embodiment, frequency band field can also be used basic described in bitmap (Bitmap) the instruction silence period
Website available operating frequency band or unavailable working band in services set.As shown in Figure 4, can using 8 binary value expressions
With the instruction of working band, i.e. " 1 " in the binary value of frequency band field filling, each binary value accordingly represents silent
The available working band of website in time Basic Service Set, " 0 " is just corresponding to represent that website can not in silence period Basic Service Set
Working band, or, conversely, " 0 " in each binary value accordingly represents website in silence period Basic Service Set
Available operating frequency band, " 1 " is just corresponding to represent the unavailable working band of website in silence period Basic Service Set.For example, it is assumed that work
The binary value for making frequency band field is 11110000, then it represents that 4 channels can use before the silence period.It is readily appreciated that also have other
Combination, herein only one illustration.
It should be noted that in the above-described embodiments, increased multiple frequency band fields and other described field groups shared one
Individual Silence Identification (Element ID) and length (Length) field, i.e. increased multiple frequency band fields and other described fields
Group forms the silent element message of an extension.In this way, it can be indicated in the silent element message of an extension repeatedly quiet
It is silent, i.e., only need the website into Basic Service Set to send a silent element message when instruction is repeatedly silent, with prior art phase
Than reducing the number for sending silent element message when indicating the silence of same number, so as to improve system effectiveness and money
Source utilization rate.
The sending module 901 of the example of accompanying drawing 9 is specifically used for by sending the modes such as broadcast frame, multicast frame or unicast frame, will
The silent element message is sent to the website of the Basic Service Set, wherein, broadcast frame can be beacon frame (Beacon
Frame), multicast frame can be multi-user data frame (Data frame), and unicast frame can be probing response frame (Probe
Response frame) or single user data frame, also, send the silent element message for multicast frame or unicast frame mode
Situation, in the present embodiment, can be the website in the Basic Service Set number is less or an only basic service
Carried out in collection during website, at the same time, it is desirable to which website is fed back in corresponding Basic Service Set.Referring particularly to accompanying drawing 6 and its
Explanatory note, do not repeat herein.
The silent mode instruction device of the example of accompanying drawing 9 further comprises data reception module 1001, as shown in Figure 10 originally
Invent the silent mode instruction device that another embodiment provides.Data reception module 1001 is used to receive website in Basic Service Set
The data sent using available operating frequency band.In other words, in the silence period, although silent mode instruction device (i.e. AP) is to portion
Divide to be disturbed and tested with the working band of influence of noise, but receive the silent element message for carrying working frequency range field
Website still can be sent out in available operating frequency band (not being disturbed the working band with influence of noise) in Basic Service Set
Data are sent, are interacted with silent mode instruction device (i.e. AP), in this way, data reception module 1001 can receive Basic Service Set
Interior website uses the data that available operating frequency band is sent.
Accompanying drawing 11 is referred to, is the data transmission device structural representation under silent mode provided in an embodiment of the present invention.
The device can be the website (Station) of Basic Service Set.For convenience of description, illustrate only and phase of the embodiment of the present invention
The part of pass.Data transmission device under the silent mode of the example of accompanying drawing 11 includes receiving module 1101 and data sending processing mould
Block 1102, wherein：
Receiving module 1101, for receiving silent element message；
In the present embodiment, the silent element message includes at least one frequency band field, the content of the frequency band field
For indicating described in the silence period website available operating frequency band or unavailable working band, the silent element in Basic Service Set
Message is as shown in accompanying drawing 3 or accompanying drawing 5.
Data sending processing module 1102, the silent element message for being received according to the receiving module 1101 are known quiet
Working band can be used in the silent time, does not send data or the available work indicated using the frequency band field in the silence period
Frequency band sends data.
In the present embodiment, so-called " transmission opportunity " refer to STA or AP a certain access style (Access Category,
AC one section of duration for being used to transmit the AC) is obtained, this duration is referred to as a transmission opportunity (Transmit
OPportunity, TXOP).
As one embodiment of the invention, if the transmission opportunity that website obtains in the Basic Service Set and the silent member
The silence period that silent count area, silent offset field and the silence durations field carried in plain message indicates collectively has
Overlapping, then the available operating frequency band that data sending processing module 1102 is indicated in the overlapping time using the frequency band field is sent out
Data are sent, otherwise, silent count area, silent offset field and the silence durations carried in the silent element message
The silence period section that field indicates collectively does not send data.
As shown in Figure 8, DFSOs of the access point AP as Basic Service Set, by broadcasting a beacon frame (Beacon
Frame silent element message) is sent, is scheduled silent three times.Website in website 1 (STA1) Basic Service Set in Basic Service Set
The receiving module 1101 of website 3 (STA3) each preserves quiet three times after beacon frame is received in 2 (STA2) and Basic Service Set
The relevant parameter that each field represents in the silent silent element message (a silent element message) needed.
Before silent for the first time, the data sending processing module 1102 of website 1 (STA1) obtains in Basic Service Set
TXOP, and the TXOP partly overlaps with silence durations section silent for the first time.The number of the website 1 (STA1) of Basic Service Set
The chance in overlapping time transmission data is obtained according to transmission processing module 1102, silent element message is used in the silence period
The available work frequency range of middle available band (Band) field instruction sends data to AP.
Second of silence period, website 2 (STA2) obtains TXOP, and the TXOP and second of silence in Basic Service Set
Silence durations section partly overlap.Website 2 (STA2) obtains the chance in overlapping time transmission data in Basic Service Set,
The available work frequency range that available band (Band) field indicates in silent element message is used to be sent to AP in the overlapping time
Data.
In the present embodiment, website is known according to the transmission opportunity and the silent element message of acquisition in Basic Service Set
Working band can be used in silence period, after the overlapping time sends data using the available operating frequency band, if described quiet
The silent time terminates, then data sending processing module 1102 sends data using Whole frequency band.It is silent in third time by taking accompanying drawing 8 as an example
Before, the data sending processing module 1102 of website 3 (STA3) obtains TXOP in Basic Service Set, and the TXOP includes third time
Silent silence durations section.The data sending processing module 1102 of website 2 (STA2) is in the silence period in Basic Service Set
Using the available work frequency range that available band (Band) field in silent element message indicates data are sent to AP.
The embodiment of the present invention also provides the data transmission system under silent mode, as shown in Figure 12.The example of accompanying drawing 12
System includes website 1202 and accompanying drawing 9 or the Basic Service Set central station of the example of accompanying drawing 10 in the Basic Service Set of the example of accompanying drawing 11
1201 Hes of point, wherein：
Basic Service Set central location 1201, for into the Basic Service Set website 1202 send silent element and disappear
Breath, the silent element message includes at least one frequency band field, when the content of the working band field is used to indicate silence
Between the available operating frequency band of website 1202 in the Basic Service Set；
Website 1202 in Basic Service Set, the silent element sent for receiving the Basic Service Set central location 1201
Message, know that working band can be used in the silence period according to the silent element message, data are not sent in the silence period
Or the available operating frequency band indicated using the frequency band field sends data.
It should be noted that the content such as information exchange, implementation procedure between each module/unit of said apparatus, due to
The inventive method embodiment is based on same design, and its technique effect brought is identical with the inventive method embodiment, particular content
Reference can be made to the narration in the inventive method embodiment, here is omitted.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, for example following various methods is one or more or whole：
Method one：
Into Basic Service Set, website sends silent element message, so that website is according to described quiet in the Basic Service Set
Silent element message knows silence period available operating frequency band, does not send data in the silence period or using available operating frequency band
Data are sent, the silent element message includes at least one frequency band field, and the content of the frequency band field is used to indicate silence
Website available operating frequency band or unavailable working band in Basic Service Set described in time.
Method two：
Website receives silent element message in Basic Service Set, and the silent element message includes at least one frequency band word
Section, the content of the frequency band field are used to indicate described in the silence period website available operating frequency band in Basic Service Set；
The website knows silence period available operating frequency band according to the silent element message, the silence period not
The available operating frequency band for sending data or being indicated using the frequency band field sends data.
The program can be stored in a computer-readable recording medium, and storage medium can include：Read-only storage
(ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc..
Above to the data transmission method and dress under silent mode indicating means provided in an embodiment of the present invention, silent mode
Put, system is described in detail, specific case used herein is set forth to the principle and embodiment of the present invention,
The explanation of above example is only intended to help the method and its core concept for understanding the present invention；Meanwhile for the one of this area
As technical staff, according to the thought of the present invention, there will be changes in specific embodiments and applications, to sum up institute
State, this specification content should not be construed as limiting the invention.
Claims (24)
1. a kind of silent mode indicating means, it is characterised in that methods described includes：
Into Basic Service Set, website sends silent element message, so that website is according to the silent member in the Basic Service Set
Plain message knows silence period available operating frequency band, does not send data in the silence period or uses the available operating frequency band
Send data；
The silent element message includes at least one frequency band field, and the content of the frequency band field is used to indicate silence period institute
State website available operating frequency band or unavailable working band in Basic Service Set.
2. the method as described in claim 1, it is characterised in that the frequency band field is silent using bitmap or binary value instruction
Website available operating frequency band or unavailable working band in Basic Service Set described in time.
3. the method as described in claim 1, it is characterised in that if at least one frequency band field be a frequency band field and
When the silence of the silent element message instruction is periodic quiet, the silent element message also includes silent time field,
The content of the silent time field is used to indicate by stopping silence after how many times periodic quiet.
4. the method as described in claim 1, it is characterised in that if at least one frequency band field is multiple frequency band fields,
Then the silent element message includes group number other field groups equal with the number of the multiple frequency band field, other described words
Each group of other fields of section group include silent count area, silence period field, silence durations field and silent skew
Field；
The multiple frequency band field forms a silent element message with other described field groups.
5. the method as described in Claims 1-4 any one, it is characterised in that the website into Basic Service Set is sent
The silent element message includes：
By way of sending broadcast frame, multicast frame or unicast frame, the silent element message is sent to the basic service
Website in collection.
6. method as claimed in claim 5, it is characterised in that the broadcast frame is beacon frame.
7. method as claimed in claim 5, it is characterised in that the multicast frame is multi-user data frame.
8. method as claimed in claim 5, it is characterised in that the unicast frame is probing response frame or single user data frame.
9. method as claimed in claim 5, it is characterised in that it is described by way of sending multicast frame or unicast frame, by institute
State silent element message and send to website in the Basic Service Set and be：
When the number of website in the Basic Service Set is less or during only website in a Basic Service Set, by multicast frame or
The mode of unicast frame sends the silent element message, and requires that website is fed back in corresponding Basic Service Set.
10. the data transmission method under a kind of silent mode, it is characterised in that methods described includes：
Website receives silent element message in Basic Service Set, and the silent element message includes at least one frequency band field, institute
The content for stating frequency band field is used to indicate website available operating frequency band or unavailable work in Basic Service Set described in the silence period
Frequency band；
The website knows silence period available operating frequency band according to the silent element message, is not sent in the silence period
Data or the available operating frequency band indicated using the frequency band field send data.
11. method as claimed in claim 10, it is characterised in that the website knows silence according to the silent element message
Time time available operating frequency band, data or the available work indicated using the frequency band field are not sent in the silence period
Frequency band, which sends data, to be included：
If the silent count area carried in the transmission opportunity of the website acquisition and the silent element message, silent offset word
The silence period of section and the instruction of silence durations field has overlapping, then the website uses the instruction in the overlapping time
Available operating frequency band send data, otherwise, data are not sent in the silence period.
12. the method as described in claim 10 or 11, it is characterised in that the website is known according to the silent element message
Silence period available operating frequency band, data are sent in the available operating frequency band that the silence period is indicated using the frequency band field
Afterwards, if the silence terminates, the website sends data using Whole frequency band.
13. a kind of silent mode instruction device, it is characterised in that described device includes：
Sending module, for the silent element message of website transmission into Basic Service Set, so that website in the Basic Service Set
Silence period available operating frequency band is known according to the silent element message, data is not sent in the silence period or use can
Data are sent with working band；
The silent element message includes at least one frequency band field, when the content of the frequency band field is used to indicate the silence period
Between website available operating frequency band or unavailable working band in the Basic Service Set.
14. device as claimed in claim 13, it is characterised in that the frequency band field is quiet using bitmap or binary value instruction
Website available operating frequency band or unavailable working band in Basic Service Set described in silent time time.
15. device as claimed in claim 13, it is characterised in that if at least one frequency band field is a frequency band field
And the silence of the silent element message instruction is when be periodic quiet, the silent element message also include silent time it is digital
Section, the content of the silent time field are used to indicate by stopping silence after how many times periodic quiet.
16. device as claimed in claim 13, it is characterised in that if at least one frequency band field is multiple frequency band words
Section, then it is described including multiple frequency band fields and to organize number other field groups equal with the number of the multiple frequency band field, institute
State each group of other field groups other fields include silent count area, silence period field, silence durations field and
Silent offset field；
The multiple frequency band field forms a silent element message with other described field groups.
17. the device as described in claim 13 to 16 any one, it is characterised in that the sending module is specifically used for passing through
The mode of broadcast frame, multicast frame or unicast frame is sent, the silent element message is sent to website in the Basic Service Set.
18. device as claimed in claim 17, it is characterised in that the broadcast frame is beacon frame.
19. device as claimed in claim 17, it is characterised in that the multicast frame is multi-user data frame.
20. device as claimed in claim 17, it is characterised in that the unicast frame is probing response frame or alone user data
Frame.
21. device as claimed in claim 17, it is characterised in that the sending module is by sending multicast frame or unicast frame
Mode, the silent element message is sent to website in the Basic Service Set is：
When the number of website in the Basic Service Set is less or during only website in a Basic Service Set, by multicast frame or
The mode of unicast frame sends the silent element message, and requires that website is fed back in corresponding Basic Service Set.
A kind of 22. data transmission device under silent mode, it is characterised in that described device be Basic Service Set in website, institute
Stating device includes：
Receiving module, for receiving silent element message, the silent element message includes at least one frequency band field, the frequency
Content with field is used to indicate described in the silence period website available operating frequency band or unavailable working band in Basic Service Set；
Data sending processing module, the silent element message for being received according to the receiving module know that the silence period can recruitment
Make frequency band, the available operating frequency band for not sending data in the silence period or being indicated using the frequency band field sends data.
23. device as claimed in claim 22, it is characterised in that the data sending processing module is specifically used in acquisition
Transmission opportunity and silent count area, silent offset field and the silence durations field carried in the silent element message
When the silence period of instruction has overlapping, data are sent in the available band that the overlapping time is indicated using the frequency band field,
Otherwise, data are not sent in the silence period.
24. the device as described in claim 22 or 23, it is characterised in that if the silence terminates, at the data transmission
Module is managed to be specifically used for sending data using Whole frequency band.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276245.3A CN103002515B (en) | 2011-09-16 | 2011-09-16 | Data transmission method and device under silent mode indicating means, silent mode |
| PCT/CN2012/077477 WO2013037228A1 (en) | 2011-09-16 | 2012-06-25 | Quiet mode indication method, data transmission method and device in quiet mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110276245.3A CN103002515B (en) | 2011-09-16 | 2011-09-16 | Data transmission method and device under silent mode indicating means, silent mode |
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| CN103002515B true CN103002515B (en) | 2017-11-24 |
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| CN104796986B (en) * | 2014-01-16 | 2019-02-19 | 电信科学技术研究院 | A kind of D2D communication means and equipment |
| CN109729567B (en) * | 2017-10-27 | 2020-10-27 | 华为技术有限公司 | Message processing method, access point equipment and message processing equipment |
| CN114830706A (en) * | 2020-11-27 | 2022-07-29 | 北京小米移动软件有限公司 | Communication method and communication device |
| CN114679795A (en) * | 2020-12-24 | 2022-06-28 | 华为技术有限公司 | Communication method, device and system in wireless local area network |
| CN113395117B (en) * | 2021-06-15 | 2022-09-09 | 江苏科技大学 | Index modulation-based multi-carrier underwater sound anti-interference communication method |
| CN115696278A (en) * | 2021-07-21 | 2023-02-03 | 华为技术有限公司 | Method and apparatus for processing broadcast information |
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| CN102170598A (en) * | 2010-02-26 | 2011-08-31 | 株式会社日立制作所 | Method of recovery from sleep state of an ONU in a PON system capable of power saving |
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| CN103002515A (en) | 2013-03-27 |
| WO2013037228A1 (en) | 2013-03-21 |
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