CN101754479B - Method and device for transmitting multicast/broadcast message through wireless access point - Google Patents
Method and device for transmitting multicast/broadcast message through wireless access point Download PDFInfo
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- CN101754479B CN101754479B CN201010002654A CN201010002654A CN101754479B CN 101754479 B CN101754479 B CN 101754479B CN 201010002654 A CN201010002654 A CN 201010002654A CN 201010002654 A CN201010002654 A CN 201010002654A CN 101754479 B CN101754479 B CN 101754479B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method and a device for transmitting a multicast/broadcast message through a wireless access point. When receiving a multicast/broadcast message, the wireless access point detects the working state of a linked workstation. The method further comprises the following steps: when the workstation which is associated to the wireless access point comprises a workstation of the energy-saving state and a workstation of the normal state, the wireless access point copies the multicast/broadcast message and transmits the multicast/broadcast message to the associated workstation; and the wireless access point awakens the workstation staying at the energy-saving state so as to transmit the copied multicast/broadcast massage to the workstation which is awakened. Through the method, the multicast/broadcast message is rapidly transmitted from the wireless access point to the associated workstation.
Description
Technical field
The present invention relates to the communications field, relate in particular to the method and apparatus that a kind of WAP sends multicast.
Background technology
In WLAN (Wireless Local Access Network, WLAN) network,, designed the Station sleep function in order to save the electric quantity consumption of Station (work station).When having data message mutual between Station and the AP (Access Point, access point), Station is in waking state, i.e. normal operating conditions; When not having data message mutual between Station and the AP, Station is in sleep (Sleep) state, i.e. electricity-saving state.
When Station was in the Sleep state, Station sent the Null message through periodically waking up to AP and keeps and being connected of AP.If AP receives the Null message that Station sends in Preset Time, then AP keeps the incidence relation with Station; If AP does not receive the Null message that Station sends in Preset Time, then AP judges that Station rolls off the production line.After Station periodically woke up, Station can also receive the control message that AP sends, for example beacon (beacon) message.In the prior art, when AP need be when Sleep Station sends multicast or unicast message, AP at first wakes Sleep Station up through the beacon message.
Concrete, when AP need be when Station sends unicast message, AP detects the operating state of Station.As shown in Figure 2, when Station was in normal condition, AP directly sent unicast message to Station; When Station was in the Sleep state, AP is this unicast message of buffer memory at first, after waking Sleep Station up, sent the unicast message of buffer memory again to this Sleep Station.
When AP need be when Station sends multicast, AP at first detects the operating state of related Station.When the related Station of AP all is in normal condition; As shown in Figure 1; AP directly sends multicast to the Station of association; The Station that receives this multicast judges whether to belong to the multicast of self required reception according to the destination address of message, and according to judged result multicast is handled accordingly.When comprising the Station that is in the Sleep state among the Station of AP association; AP needs at first buffer memory multicast; AP wakes Sleep Station up through broadcasting beacon message then, carries the identification information of Sleep Station in this beacon message.The Station that receives the beacon message obtains the identification information in the beacon message, if the Station of this identification information sign is self, then this Station switches to normal condition with oneself state by Sleep, and sends response message to AP.After the Sleep of association Station was all waken up, AP sent the multicast of buffer memory again to each Station.
But; Owing to can comprise the Station that constantly are in power save mode individually among a plurality of Station of AP association; This Station gets into power save mode again after being waken up by power save mode very soon; Thereby cause AP when a plurality of Station send multicast, needing repetition buffer memory multicast, waking the process of Sleep Station up, cause great network delay, influence the work of other normal conditions Station.
Summary of the invention
The invention provides the method and apparatus that a kind of WAP sends multicast, to realize that WAP issues multicast fast to the work station of association.
The invention provides the method that a kind of WAP sends multicast, when receiving multicast, said WAP detects the operating state of hanging work station down, and said method further comprises:
When the work station of work station that comprises power save mode in the related work station of said WAP and normal condition, said WAP duplicates said multicast, and sends said multicast to the work station of association;
Said WAP wakes the work station that is in power save mode up, and the said multicast that obtains of duplicating is sent to the work station that quilt wakes up with mode of unicast.
Said WAP duplicates said multicast, and before the work station of association sends said multicast, also comprises:
Said WAP judges that whether the number of the work station that is in power save mode is greater than preset maximum value;
Be less than or equal to said preset maximum value if be in the number of the work station of power save mode; Carry out said WAP and duplicate said multicast; And send the step of said multicast to the work station of association; And continue to carry out said WAP and wake the work station that is in power save mode up, with said step of duplicating the work station transmission that the multicast that obtains wakes up to quilt with mode of unicast;
Otherwise, the said multicast of said wireless access point cache, and the multicast of sending buffer memory at the work station of the work station backward association that wakes power save mode up.
Said preset maximum value is S, and its value is:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
Said threshold value X is specially 1.
Said wireless access is named a person for a particular job and is saidly duplicated work station that the multicast that obtains wakes up to quilt and send and comprise:
Said WAP uses the MAC Address of the said work station that is waken up to encapsulate said multicast again;
The multicast that said wireless access is named a person for a particular job after encapsulating is again sent to the said work station that is waken up with mode of unicast.
The present invention provides a kind of WAP, and when receiving multicast, said WAP detects the operating state of hanging work station down, and said WAP comprises:
Copied cells is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, duplicating said multicast;
Wakeup unit is used to wake up the related work station that is in power save mode of said WAP;
Transmitting element is connected with copied cells with said wakeup unit, is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, sends said multicast to the work station of association; And after said wakeup unit is waken the said work station that is in power save mode up, send said copied cells with the work station of mode of unicast after waking up and duplicate the multicast that obtains.
Also comprise:
Detecting unit; Be connected with transmitting element with said copied cells; Be used to receive the state message that related work station sends, know the operating state of work station, and testing result is provided to said copied cells and transmitting element according to the station state identification information in the said state message.
Said detecting unit also is used for:
Whether the number of judging the work station that is in power save mode is greater than preset maximum value;
Be less than or equal to said preset maximum value if be in the number of the work station of power save mode, notify said copied cells to duplicate said multicast;
If the number of work station that is in power save mode is greater than said preset maximum value, the said multicast of buffer memory, and the multicast of sending buffer memory at the work station of the work station backward association that wakes power save mode up.
Said preset maximum value is S, and its value is:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
Said transmitting element also is used for:
Use the MAC Address of the said work station that is waken up to encapsulate said multicast again.
Compared with prior art, the present invention has the following advantages at least:
Among the present invention; When the work station of work station that comprises power save mode in the related work station of WAP and normal condition; WAP directly sends the multicast that receives to the work station of association; And duplicate this multicast; Then after the work station of power save mode is waken up, send to the work station that quilt wakes up with the unicast message form duplicating the multicast that obtains, thereby avoided the individual work station constantly to be in power save mode and network delay that other work stations of hanging down to WAP cause.
Description of drawings
Fig. 1 is prior art AP sends a network architecture sketch map from multicast to the Station of association;
Fig. 2 is prior art AP sends a network architecture sketch map from unicast message to the Station of association;
Fig. 3 is the schematic flow sheet that WAP provided by the invention sends the method for multicast;
Fig. 4 is that the WAP that application scenarios of the present invention provides sends the network architecture sketch map of multicast;
Fig. 5 is that the WAP that application scenarios of the present invention provides sends the schematic flow sheet of the method for multicast;
Fig. 6 is the structural representation of WAP provided by the invention.
Embodiment
Core concept of the present invention is: AP directly sends the Station of the multicast that receives to association; AP also distinguishes the Station that is in power save mode and normal condition; For Sleep Station, AP duplicated multicast/broadcasting packet also sends to Sleep Station with the clean culture form.
The method that the present invention provides a kind of WAP to send multicast, when receiving multicast, said WAP detects the operating state of hanging work station down, and as shown in Figure 3, said method further comprises:
Introduce the method that WAP provided by the invention sends multicast in detail below in conjunction with concrete application scenarios.
As shown in Figure 4, related many user terminals of AP one side in this application scenarios, opposite side connects network equipment, and the method for the WAP transmission multicast that this application scenarios provides is as shown in Figure 5, may further comprise the steps:
Concrete, the maximum of the number of Sleep Station is set among the AP, this maximum can represent that its value is concrete to be obtained through following formula with S:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
Threshold value X can be provided with according to actual needs flexibly, and preferred, X is 1.At this moment, all send to Station through the clean culture form multicast time be not more than the time of sending a multicast to Station.
Concrete, AP sends the beacon message to Sleep Station and wakes Sleep Station up.AP uses the source MAC of the Station that is waken up to encapsulate the multicast of buffer memory again.The heading of beacon message is as shown in table 1:
Table 1
In the table 1, in the heading of wireless 802.11 messages, the destination address of message is Address1.AP is replaced by the source MAC of each SleepStation respectively with the multicast/broadcast address of the Address1 in the multicast of buffer memory, changes a multicast into a plurality of unicast messages of going to different SleepStation.AP abandons the multicast of buffer memory, releasing memory then with these unicast message difference buffer memorys of going to different station.
Should use in the scene; Whether AP need judge the number of Sleep Station and the relation of preset maximum value; Confirm that according to actual needs for example AP also can not go to judge the number of Sleep Station, and when in the Station of association, comprising Sleep Station and Active Station; Promptly send multicast, send multicast with the clean culture form to Sleep Station then.
Through adopting method provided by the invention; When the work station of work station that comprises power save mode in the related work station of WAP and normal condition; WAP directly sends the multicast that receives to the work station of association; And duplicate this multicast; Then after the work station of power save mode is waken up, send to the work station that quilt wakes up with the unicast message form duplicating the multicast that obtains, thereby avoided the individual work station constantly to be in power save mode and network delay that other work stations of hanging down to WAP cause.
The present invention provides a kind of WAP, and when receiving multicast, said WAP detects the operating state of hanging work station down, and as shown in Figure 6, said WAP comprises:
Copied cells 10 is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, duplicating said multicast;
Transmitting element 30 is connected with copied cells 10 with said wakeup unit 20, is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, sends said multicast to the work station of association; And after said wakeup unit 20 is waken the said work station that is in power save mode up, send said copied cells 10 with the work station of mode of unicast after waking up and duplicate the multicast that obtains.Concrete, this transmitting element 30 also is used to use the MAC Address of the said work station that is waken up to encapsulate said multicast again, and the multicast after encapsulating is again sent to the said work station that is waken up with mode of unicast.
The WAP that provides among the present invention also comprises:
Detecting unit 40; Be connected with transmitting element 30 with said copied cells 10; Be used to receive the state message that related work station sends; Know the operating state of work station according to the station state identification information in the said state message, and with transmitting element 30 testing result is provided to said copied cells 10.
Said detecting unit 40 also is used for:
Whether the number of judging the work station that is in power save mode is greater than preset maximum value;
Be less than or equal to said preset maximum value if be in the number of the work station of power save mode, notify said copied cells to duplicate said multicast;
If the number of work station that is in power save mode is greater than said preset maximum value, the said multicast of buffer memory.
Said preset maximum value is S, and its value is:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
Through adopting equipment provided by the invention; When the work station of work station that comprises power save mode in the related work station of WAP and normal condition; WAP directly sends the multicast that receives to the work station of association; And duplicate this multicast; Then after the work station of power save mode is waken up, send to the work station that quilt wakes up with the unicast message form duplicating the multicast that obtains, thereby avoided the individual work station constantly to be in power save mode and network delay that other work stations of hanging down to WAP cause.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1. a WAP sends the method for multicast, and when receiving multicast, said WAP detects the operating state of hanging work station down, it is characterized in that said method further comprises:
When the work station of work station that comprises power save mode in the related work station of said WAP and normal condition, said WAP duplicates said multicast, and sends said multicast to the work station of association;
Said WAP wakes the work station that is in power save mode up, and the said multicast that obtains of duplicating is sent to the work station that quilt wakes up with mode of unicast.
2. the method for claim 1 is characterized in that, said WAP duplicates said multicast, and before the work station of association sends said multicast, also comprises:
Said WAP judges that whether the number of the work station that is in power save mode is greater than preset maximum value;
Be less than or equal to said preset maximum value if be in the number of the work station of power save mode; Carry out said WAP and duplicate said multicast; And send the step of said multicast to the work station of association; And continue to carry out said WAP and wake the work station that is in power save mode up, with said step of duplicating the work station transmission that the multicast that obtains wakes up to quilt with mode of unicast;
Otherwise, the said multicast of said wireless access point cache, and the multicast of sending buffer memory at the work station of the work station backward association that wakes power save mode up.
3. method as claimed in claim 2 is characterized in that, said preset maximum value is S, and its value is:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
4. method as claimed in claim 3 is characterized in that said threshold value X is specially 1.
5. the method for claim 1 is characterized in that, said wireless access is named a person for a particular job and saidly duplicated work station that the multicast that obtains wakes up to quilt with mode of unicast and send and comprise:
Said WAP uses the MAC Address of the said work station that is waken up to encapsulate said multicast again.
6. WAP, when receiving multicast, said WAP detects the operating state of hanging work station down, it is characterized in that said WAP comprises:
Copied cells is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, duplicating said multicast;
Wakeup unit is used to wake up the related work station that is in power save mode of said WAP;
Transmitting element is connected with copied cells with said wakeup unit, is used for when the related work station of said WAP comprises the work station of work station and normal condition of power save mode, sends said multicast to the work station of association; And after said wakeup unit is waken the said work station that is in power save mode up, send said copied cells with the work station of mode of unicast after waking up and duplicate the multicast that obtains.
7. WAP as claimed in claim 6 is characterized in that, also comprises:
Detecting unit; Be connected with transmitting element with said copied cells; Be used to receive the state message that related work station sends, know the operating state of work station, and testing result is provided to said copied cells and transmitting element according to the station state identification information in the said state message.
8. WAP as claimed in claim 7 is characterized in that, said detecting unit also is used for:
Whether the number of judging the work station that is in power save mode is greater than preset maximum value;
Be less than or equal to said preset maximum value if be in the number of the work station of power save mode, notify said copied cells to duplicate said multicast;
If the number of work station that is in power save mode is greater than said preset maximum value, the said multicast of buffer memory, and the multicast of sending buffer memory at the work station of the work station backward association that wakes power save mode up.
9. WAP as claimed in claim 8 is characterized in that, said preset maximum value is S, and its value is:
S＝X·R
u/R
m
Wherein, R
mBe the multicast transmission rate of WAP, R
uBe the clean culture transmission rate of WAP, X is a threshold value.
10. WAP as claimed in claim 6 is characterized in that, said transmitting element also is used for:
Use the MAC Address of the said work station that is waken up to encapsulate said multicast again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010002654A CN101754479B (en) | 2010-01-21 | 2010-01-21 | Method and device for transmitting multicast/broadcast message through wireless access point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010002654A CN101754479B (en) | 2010-01-21 | 2010-01-21 | Method and device for transmitting multicast/broadcast message through wireless access point |
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| CN101754479A CN101754479A (en) | 2010-06-23 |
| CN101754479B true CN101754479B (en) | 2012-09-26 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313201B (en) * | 2012-03-14 | 2018-04-10 | 中兴通讯股份有限公司 | The sending method and device of business configured information |
| CN105309011A (en) * | 2013-09-05 | 2016-02-03 | 华为技术有限公司 | Data transmission method, base station and user equipment |
| CN105323724B (en) * | 2015-06-03 | 2019-06-07 | 成都西加云杉科技有限公司 | The setting method and device of transmission rate in multicast/broadcast technology |
| CN107979864B (en) * | 2016-10-25 | 2021-11-19 | 中兴通讯股份有限公司 | Access method, device and system of access point |
| CN109548120B (en) * | 2017-09-22 | 2022-02-11 | 珠海市魅族科技有限公司 | Communication method and device of wireless local area network, station equipment and access point equipment |
| KR101986099B1 (en) * | 2018-01-05 | 2019-06-05 | (주)에프씨아이 | Method and Apparatus for Filtering for Reducing Wake-UP Frequency |
| CN110262344B (en) * | 2019-06-21 | 2020-10-02 | 成都星时代宇航科技有限公司 | Satellite affair subsystem based on layered architecture and satellite affair data processing method |
| CN110830917A (en) * | 2019-09-24 | 2020-02-21 | 中移（杭州）信息技术有限公司 | User distribution display method, device, terminal and storage medium |
| CN116321021A (en) * | 2021-12-21 | 2023-06-23 | 中兴通讯股份有限公司 | Working mode adjustment method, device, storage medium and electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809008A (en) * | 2005-01-21 | 2006-07-26 | 捷讯研究有限公司 | Handling broadcast and multicast traffic as unicast traffic in a wireless network |
| CN101374066A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Method, apparatus and system for controlling multicast/unicast business admission |
-
2010
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809008A (en) * | 2005-01-21 | 2006-07-26 | 捷讯研究有限公司 | Handling broadcast and multicast traffic as unicast traffic in a wireless network |
| CN101374066A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Method, apparatus and system for controlling multicast/unicast business admission |
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| CN101754479A (en) | 2010-06-23 |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
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Granted publication date: 20120926 Termination date: 20200121 |