CN107454638A - The sending method and device of message, computer-readable recording medium - Google Patents
The sending method and device of message, computer-readable recording medium Download PDFInfo
- Publication number
- CN107454638A CN107454638A CN201710650738.6A CN201710650738A CN107454638A CN 107454638 A CN107454638 A CN 107454638A CN 201710650738 A CN201710650738 A CN 201710650738A CN 107454638 A CN107454638 A CN 107454638A
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- Prior art keywords
- wap
- message
- wireless terminal
- sent
- wireless
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
Abstract
The application provides a kind of sending method and device, computer-readable recording medium of message, and this method can include：When radio roaming occurs for wireless terminal, the first WAP that the wireless terminal is associated before radio roaming, and the second WAP as radio roaming target are determined；Message to be sent is sent to first WAP and second WAP respectively, to send the message to be sent from least one of first WAP and second WAP to the wireless terminal.The application can avoid terminals that packet loss event occurs in radio roaming.Meanwhile wireless controller need not cache message to be sent, the occupancy to storage resource can be effectively reduced, improves the performance of wireless controller.
Description
Technical field
The application is related to communication technique field, more particularly to a kind of sending method of message and device, computer-readable deposits
Storage media.
Background technology
WIFI is widely used in the life of people, and the place such as megastore, hotel, hospital typically can all dispose wireless network
Network.Because an AP (Wireless Access Point, WAP) wireless coverage is limited, only by an AP
It can not cover the places such as whole megastore, hotel, hospital, can be disposed using more AP during actual deployment wireless network,
Will now there is radio roaming.Radio roaming is a STA (Sation, wireless terminal) in the coverage from an AP
The process of AP switchings occurs when being moved to another AP coverage.AP switchings can occur during due to radio roaming, in this mistake
Easily occurs the phenomenon of packet loss in journey.
In the related art, when AC (Wireless Access Point Controller, wireless controller) is detected
STA occur radio roaming when, the message for being sent to STA is cached in STA roam procedures, and STA roaming terminate after to
The AP that STA is newly associated sends the message of caching, to be sent by the AP newly associated to STA, so as to prevent the message for being sent to STA from losing
Lose.
However, AC storage resource is limited, packet loss can be still caused when the capacity of the message of storage exceedes limitation.Meanwhile
When data traffic is big or STA quantity is more, it will there are a large amount of messages to be cached in AC, cause occupancy AC largely to store money
Source, reduce AC performance.
The content of the invention
In view of this, the application provides a kind of sending method and device, computer-readable recording medium of message, can solve
AC caused by caching a large amount of messages because take a large amount of storage resources the problem of when certainly radio roaming occurs for STA.
To achieve the above object, it is as follows to provide technical scheme by the application：
According to the first aspect of the application, it is proposed that a kind of sending method of message, applied to wireless controller；The side
Method includes：
When radio roaming occurs for wireless terminal, determine that the wireless terminal is associated before radio roaming first is wireless
Access point, and the second WAP as radio roaming target；
Message to be sent is sent to first WAP and second WAP respectively, with by described the
At least one of one WAP and second WAP send the message to be sent to the wireless terminal.
According to the second aspect of the application, it is proposed that a kind of dispensing device of message, applied to wireless controller；The dress
Put including：
Determining unit, when radio roaming occurs for wireless terminal, determine that the wireless terminal is associated before radio roaming
The first WAP, and the second WAP as radio roaming target；
Transmitting element, message to be sent is sent to first WAP and second WAP respectively,
To be treated described at least one of first WAP and second WAP to wireless terminal transmission
Send message.
According to the third aspect of the application, it is proposed that a kind of computer-readable recording medium, be stored thereon with computer and refer to
Order, realized when the instruction is executed by processor as any one of above-mentioned technical scheme the step of method.
From above technical scheme, the application by when radio roaming occurs for wireless terminal respectively to the wireless terminal
Associated WAP sends message to be sent before radio roaming and after radio roaming so that no matter is the wireless terminal
It is currently associated with the WAP before or after radio roaming, the message can be received, so as to avoid packet loss
Event.Meanwhile wireless controller need not cache message to be sent, the occupancy to storage resource can be effectively reduced, is improved wireless
The performance of controller.
Brief description of the drawings
Fig. 1 is the schematic diagram that radio roaming occurs for AP in correlation technique.
Fig. 2 is a kind of flow chart of the sending method of message shown in the exemplary embodiment of the application one.
Fig. 3 is the flow chart of the sending method of another message shown in the exemplary embodiment of the application one.
Fig. 4 is a kind of flow chart of determination generation radio roaming shown in the exemplary embodiment of the application one.
Fig. 5 is another flow chart for determining that radio roaming occurs shown in the exemplary embodiment of the application one.
Fig. 6 is the STA shown in the exemplary embodiment of the application one and the flow chart of AC hand shaking processes.
Fig. 7 is that the second WAP shown in the exemplary embodiment of the application one informs the flow that AC radio roamings are completed
Figure.
Fig. 8 is the structural representation of a kind of electronic equipment shown in the exemplary embodiment of the application one.
Fig. 9 is a kind of block diagram of the dispensing device of message shown in the exemplary embodiment of the application one.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
" one kind " of singulative used in the application and appended claims, " described " and "the" are also intended to including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, do not departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Fig. 1 is the schematic diagram that radio roaming occurs for AP in correlation technique.As shown in figure 1, the AC20 under network 10 is responsible for pipe
Reason AP30A and AP30B, STA40 are in AP30A coverage, i.e., associated with AP30A.When STA40 away from AP30A and
When moving closer to AP30B, STA40 associates with AP30A disassociations and with AP30B foundation, and said process is referred to as radio roaming,
That is the process of AP switchings occurs when another AP coverage is moved in the coverage from an AP for a STA.
During radio roaming, due to there occurs AP switching, easily causing the phenomenon for packet loss occur.Such as when
STA40 does not cancel also with AP30A to be associated, and when data message has been issued to AP30A, AP30A will send the datagram to STA40
Text, and during transmission STA40 and AP30A cancel and associate and establish and associate with AP30B (i.e. there occurs radio roaming,
Roam to AP30B), because STA40 has disconnected with AP30A, AP30A sends the data message without normal direction STA40, the number
It will be dropped according to message.
In the related art, when AC detects that radio roaming occurs for STA, to being sent to STA report in STA roam procedures
Text is cached, and the AP newly associated to STA after detecting that STA roamings terminate sends the message of caching, with by newly associating
AP is sent to STA, so as to prevent from being sent to STA message dropping.
However, AC storage resource is limited, packet loss can be still caused when the capacity of the message of storage exceedes limitation.Meanwhile
When data traffic is big or STA quantity is more, it will there are a large amount of messages to be cached in AC, cause occupancy AC largely to store money
Source, reduce AC performance.
Therefore, the application by way of improving and sending message to solve above-mentioned technical problem present in correlation technique.
It is described in detail with reference to embodiment.
Fig. 2 is a kind of flow chart of the sending method of message shown in the exemplary embodiment of the application one.As shown in Fig. 2
This method is applied to wireless controller, may comprise steps of：
Step 202, when radio roaming occurs for wireless terminal, determine what the wireless terminal was associated before radio roaming
First WAP, and the second WAP as radio roaming target.
In the present embodiment, in the case where concentrating forwarding, when the wireless controller is received by the wireless terminal
Send, and during the re-association management frame through second WAP forwarding, the wireless terminal can be judged as occurring
Radio roaming.Wherein, re-association management frame can be reassociation frames, and reassociation frames, which represent, to be occurred wirelessly
Roaming, then AC can learn STA there occurs radio roaming, and the information for obtaining correlation is (such as STA MAC Address, new associated
AP MAC Address etc.).Or AC can locally record the information (such as MAC Address) for the AP being associated before STA radio roamings,
When receiving the new association requests of this STA (MAC Address for including cenotype associated AP) again, can compare new associated
The AP and AP recorded is not same AP, you can is judged to that radio roaming occurs.
In the case where locally forwarding, received when the wireless controller receives by second WAP
The WTP Event Request messages (event request message) sent after the re-association management frame that the wireless terminal is sent, and
When message element Vendor Specific Payload (specific load message elements) is included in the event request message, institute
Stating wireless terminal can be judged as that radio roaming occurs.Wherein, included in message element Vendor Specific Payload
The relevant information (such as sequence number, MAC Address) for the AP that STA is newly associated and the relevant information (such as MAC Address) of the STA.
AC replys WTP Event Response messages after message element Vendor Specific Payload are received and confirmed.
Step 204, message to be sent is sent to first WAP and second WAP respectively, with
Sent from least one of first WAP and second WAP to the wireless terminal described pending
Deliver newspaper text.
In the present embodiment, due to not can determine that the wireless terminal and first WAP and described currently
Which platform WAP in second WAP is associated, and can take respectively to first WAP and institute
State the mode that the second WAP sends message to be sent, so that it is guaranteed that no matter wireless terminal and which platform WAP phase
Association, can receive message to be sent, and then avoid the generation of packet loss event.
In the present embodiment, at the end of the wireless terminal radio roaming, stop respectively to first wireless access
Point and second WAP send the operation of message to be sent.
Wherein, hand shaking is completed in the wireless terminal and the wireless controller or second WAP
Afterwards, the wireless terminal is judged as radio roaming and terminated.
From above technical scheme, the application by when radio roaming occurs for wireless terminal respectively to the wireless terminal
Associated WAP sends message to be sent before radio roaming and after radio roaming so that no matter is the wireless terminal
It is currently associated with the WAP before or after radio roaming, the message can be received, so as to avoid packet loss
Event.Meanwhile wireless controller need not cache message to be sent, the occupancy to storage resource can be effectively reduced, is improved wireless
The performance of controller.
In order to make it easy to understand, the technical scheme of the application is described in detail below in conjunction with the accompanying drawings.Refer to Fig. 3, Fig. 3
It is the flow chart of the sending method of another message shown in the exemplary embodiment of the application one.As shown in figure 3, this method application
In wireless controller, may comprise steps of：
Step 302, it is determined that radio roaming occurs.
In the present embodiment, in one case, when concentrating forwarding (STA and AC is interacted), its interaction is such as
Shown in Fig. 4：
In step 402, STA sends re-association management frame to AC.
Wherein, re-association management frame can be reassociation frames, and reassociation frames, which represent, to be occurred wirelessly
Roaming, then AC can learn STA there occurs radio roaming, and the information for obtaining correlation is (such as STA MAC Address, new related
Join AP MAC Address etc.).Meanwhile re-association management frame is forwarded to AC by STA as the second WAP of roaming candidate.
Or AC can locally record the information (such as MAC Address) for the AP being associated before STA radio roamings, when again
When receiving the new association requests of this STA (MAC Address for including cenotype associated AP), can compare cenotype associated AP with
The AP of record is not same AP, you can is judged to that radio roaming occurs.
In another case, when local forwarding (STA and AP is interacted), STA can be to second in radio roaming
WAP sends reassociation frames, and the second WAP reports AC after receiving reassociation frames, informed
AC has found the radio roaming event on STA, and it informs that process is as shown in Figure 5：
In step 502, the second WAP sends WTP Event Request messages to AC.
Wherein, message element Vendor Specific Payload are included in WTP Event Request messages,
The STA AP (i.e. the second WAP) newly associated relevant information (such as sequence is included in Vendor Specific Payload
Number, MAC Address etc.) and the STA relevant information (such as MAC Address).
In step 504, AC returns to WTP Event Response messages.
Wherein, AC replys the progress of WTP Event Response messages after Vendor Specific Payload are received
Confirm.
Step 304, message to be sent is backed up.
In the present embodiment, compared to the caching message to be sent in correlation technique, the technical scheme of the application is using standby
Part message to be sent is used to subsequently be respectively sent to first, second WAP, can effectively reduce and wireless controller is deposited
Store up the occupancy of resource.
Step 306, message to be sent is sent to the first WAP.
Step 308, message to be sent is sent to the second WAP.
In the present embodiment, in STA radio roamings, it not can determine that and wirelessly connect message to be sent is sent to first
Access point and from the first WAP to STA send the message to be sent when, the first WAP is still associated with STA；Together
Reason, it can not determine sending message to be sent to the second WAP and be somebody's turn to do from the second WAP to STA transmissions
During message to be sent, the second WAP is established with STA and associated.Therefore, can take respectively to the first wireless access
Point and the second WAP send the mode of message to be sent, it is ensured that no matter wireless terminal is related to which platform WAP
Connection, can receive message to be sent, so as to avoid the generation of packet loss event.
Wherein it is possible to first send message to be sent to the first WAP, first can also be sent out to the second WAP
Message to be sent is sent, the application is limited not to this.
Step 310, determine whether radio roaming terminates STA, be transferred to step 312 if terminating, otherwise return to step 304.
In the present embodiment, if STA radio roamings terminate, it is pending to stop radio roaming processing in technical scheme
Deliver newspaper the operation of text, and message to be sent is handled according to normal handling process.
In one case, when concentrating forwarding, STA and AC hand shaking process are as shown in Figure 6：
In step 602, STA sends authentication request messages (authentication request packet) to AC.
In step 604, AC returns to authentication response messages (authentication response message).
In step 606, STA sends reassociation request messages (reassociation requests message) to AC.
In step 608, AC returns to reassociation response messages (re-association response message).
Wherein, when AC and STA hand shakings are completed, judge that STA radio roamings terminate and terminate unlimited roaming processing
Operating process.In addition, when WLAN is encrypted, it is also necessary to be encrypted and shake hands, its handshake method specifically encrypted encrypts class with it
Type (encryption type has WEP, TKIP etc.) is relevant, can be shaken hands according to standard agreement.
In another case, when locally forwarding, STA completes to shake hands with the AP (i.e. the second WAP) newly associated
Afterwards, the AP newly associated reports AC, informs that AC radio roamings are completed, and AC then terminates the operating process of unlimited roaming processing.It is informed
Process is as shown in Figure 7：
In a step 702, the second WAP sends WTP Event Request messages to AC.
Wherein, message element add station are included in WTP Event Request messages, for informing ACSTA
Radio roaming is completed, the relevant information comprising the second WAP is (such as sequence number, MAC in message element add station
Location etc.) and STA relevant information (such as MAC Address).
In step 704, AC returns to WTP Event Response messages.
Wherein, AC replys WTP Event Response messages after add station are received and confirmed.
Step 312, the operating process handled according to radio roaming is stopped.
From above technical scheme, the application by when radio roaming occurs for wireless terminal respectively to the wireless terminal
Associated WAP sends message to be sent before radio roaming and after radio roaming so that no matter is the wireless terminal
It is currently associated with the WAP before or after radio roaming, the message can be received, so as to avoid packet loss
Event.Meanwhile wireless controller need not cache message to be sent, the occupancy to storage resource can be effectively reduced, is improved wireless
The performance of controller.
Fig. 8 shows the structural representation of the electronic equipment of the exemplary embodiment according to the application.It refer to Fig. 8,
In hardware view, the electronic equipment includes processor 802, internal bus 804, network interface 806, internal memory 808 and non-volatile
Property memory 810, the hardware being also possible that certainly required for other business.Processor 802 is from nonvolatile memory 810
Computer program corresponding to reading is into internal memory 808 and then runs, and the dispensing device for solving message is formed on logic level.When
So, in addition to software realization mode, the application is not precluded from other implementations, such as logical device or software and hardware combining
Mode etc., that is to say, that the executive agent of following handling process is not limited to each logic unit or hardware
Or logical device.
Fig. 9 is refer to, in Software Implementation, the dispensing device of the message can include determining that unit 901 and send
Unit 902.Wherein：
Determining unit 901, when radio roaming occurs for wireless terminal, determine that the wireless terminal is related before radio roaming
First WAP of connection, and the second WAP as radio roaming target；
Transmitting element 902, send pending deliver newspaper to first WAP and second WAP respectively
Text, with described at least one of first WAP and second WAP to wireless terminal transmission
Message to be sent.
Optionally, sent when the wireless controller receives by the wireless terminal, and through second wireless access
During the re-association management frame of point forwarding, the wireless terminal is judged as that radio roaming occurs.
Optionally, the wireless terminal is being received by second WAP when the wireless controller receives
The event request message sent after the re-association management frame of transmission, and specific load message element is included in the event request message
When plain, the wireless terminal is judged as that radio roaming occurs.
Optionally, in addition to：
Processing unit, at the end of the wireless terminal radio roaming, stop respectively to first WAP and
Second WAP sends the operation of message to be sent.
Optionally, hand shaking is completed in the wireless terminal and the wireless controller or second WAP
Afterwards, the wireless terminal is judged as radio roaming and terminated.
The function of unit and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, can be as the part that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Need to select some or all of module therein to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory of instruction, above-mentioned instruction can complete the above method, the party by the computing device of the dispensing device of message
Method can include：
When radio roaming occurs for wireless terminal, determine that the wireless terminal is associated before radio roaming first is wireless
Access point, and the second WAP as radio roaming target；
Message to be sent is sent to first WAP and second WAP respectively, with by described the
At least one of one WAP and second WAP send the message to be sent to the wireless terminal.
Optionally, sent when the wireless controller receives by the wireless terminal, and through second wireless access
During the re-association management frame of point forwarding, the wireless terminal is judged as that radio roaming occurs.
Optionally, the wireless terminal is being received by second WAP when the wireless controller receives
The event request message sent after the re-association management frame of transmission, and specific load message element is included in the event request message
When plain, the wireless terminal is judged as that radio roaming occurs.
Optionally, in addition to：
At the end of the wireless terminal radio roaming, stop respectively to first WAP and second nothing
Line access point sends the operation of message to be sent.
Optionally, hand shaking is completed in the wireless terminal and the wireless controller or second WAP
Afterwards, the wireless terminal is judged as radio roaming and terminated.
Wherein, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-
ROM, tape, floppy disk and optical data storage devices etc., the application is limited not to this.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.
Claims (11)
1. a kind of sending method of message, it is characterised in that applied to wireless controller；Methods described includes：
When radio roaming occurs for wireless terminal, the first wireless access that the wireless terminal is associated before radio roaming is determined
Point, and the second WAP as radio roaming target；
Message to be sent is sent to first WAP and second WAP respectively, with by first nothing
At least one of line access point and second WAP send the message to be sent to the wireless terminal.
2. according to the method for claim 1, it is characterised in that when the wireless controller is received by the wireless terminal
Send, and during the re-association management frame through second WAP forwarding, the wireless terminal is judged as occurring wirelessly
Roaming.
3. according to the method for claim 1, it is characterised in that when the wireless controller receive it is wireless by described second
The event request message that access point is sent after the re-association management frame of the wireless terminal transmission is received, and the event please
Ask when specific load message element is included in message, the wireless terminal is judged as that radio roaming occurs.
4. according to the method for claim 1, it is characterised in that also include：
At the end of the wireless terminal radio roaming, stopping wirelessly connecing to first WAP and described second respectively
Access point sends the operation of message to be sent.
5. according to the method for claim 4, it is characterised in that in the wireless terminal and the wireless controller or described
After second WAP completes hand shaking, the wireless terminal, which is judged as radio roaming, to be terminated.
6. a kind of dispensing device of message, it is characterised in that applied to wireless controller；Described device includes：
Determining unit, when radio roaming occurs for wireless terminal, determine the wireless terminal is associated before radio roaming the
One WAP, and the second WAP as radio roaming target；
Transmitting element, send message to be sent to first WAP and second WAP respectively, with by
At least one of first WAP and second WAP send described to be sent to the wireless terminal
Message.
7. device according to claim 6, it is characterised in that when the wireless controller is received by the wireless terminal
Send, and during the re-association management frame through second WAP forwarding, the wireless terminal is judged as occurring wirelessly
Roaming.
8. device according to claim 6, it is characterised in that when the wireless controller receive it is wireless by described second
The event request message that access point is sent after the re-association management frame of the wireless terminal transmission is received, and the event please
Ask when specific load message element is included in message, the wireless terminal is judged as that radio roaming occurs.
9. device according to claim 6, it is characterised in that also include：
Processing unit, at the end of the wireless terminal radio roaming, stop respectively to first WAP and described
Second WAP sends the operation of message to be sent.
10. device according to claim 9, it is characterised in that in the wireless terminal and the wireless controller or institute
After stating the second WAP completion hand shaking, the wireless terminal, which is judged as radio roaming, to be terminated.
11. a kind of computer-readable recording medium, is stored thereon with computer instruction, it is characterised in that the instruction is by processor
Realized during execution as any one of claim 1-5 the step of method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710650738.6A CN107454638A (en) | 2017-08-02 | 2017-08-02 | The sending method and device of message, computer-readable recording medium |
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| CN201710650738.6A CN107454638A (en) | 2017-08-02 | 2017-08-02 | The sending method and device of message, computer-readable recording medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109089260A (en) * | 2018-09-21 | 2018-12-25 | 锐捷网络股份有限公司 | A kind of method, AP and AC realizing wireless terminal roaming detection |
| CN113518339A (en) * | 2020-04-10 | 2021-10-19 | 华为技术有限公司 | Terminal roaming method and device and computer readable storage medium |
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| CN109089260A (en) * | 2018-09-21 | 2018-12-25 | 锐捷网络股份有限公司 | A kind of method, AP and AC realizing wireless terminal roaming detection |
| CN109089260B (en) * | 2018-09-21 | 2021-10-22 | 锐捷网络股份有限公司 | Method for realizing roaming detection of wireless terminal, AP and AC |
| CN113518339A (en) * | 2020-04-10 | 2021-10-19 | 华为技术有限公司 | Terminal roaming method and device and computer readable storage medium |
| US11689913B2 (en) | 2020-04-10 | 2023-06-27 | Huawei Technologies Co., Ltd. | Terminal roaming method and apparatus, and computer-readable storage medium |
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