CN101193025A - Access point and its channel switching method - Google Patents
Access point and its channel switching method Download PDFInfo
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- CN101193025A CN101193025A CNA2006101570370A CN200610157037A CN101193025A CN 101193025 A CN101193025 A CN 101193025A CN A2006101570370 A CNA2006101570370 A CN A2006101570370A CN 200610157037 A CN200610157037 A CN 200610157037A CN 101193025 A CN101193025 A CN 101193025A
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Abstract
The invention provides an access point which communicates with another access point. The access point comprises a transceiver module, a channel information storage module and a channel selection module. The transceiver module is used for sending the information generated by the access point to the another access point, and receiving the information sent by the another access point; the channel information storage module is used for storing the channel information of the access point and the another access point; further, the transceiver module is used for sending the channel information; and the channel selection module is used for generating channel switching request information, sending the channel switching request information to the another access point by utilizing the transceiver module, and selecting a common channel as the communication channel between the access point and the another access point according to the channel information. Further, the invention further provides a channel switching method. The access point and channel switching method provided by the invention, which utilizes a channel selection request and channel switching request, can automatically select and switch a channel without processed manually by the user, thus promptly handling the problems arising from the signal transmission of the access point.
Description
Technical field
The present invention relates to a kind of network equipment, refer to a kind of access point of selective channel automatically especially.
Background technology
Existing digital home network utilizes WAP (wireless access point), and (Access Point AP) comes mutual transmission information.
Usually, adopt Wireless transmission mode to transmit information between the AP, its employed wireless channel very easily is interfered.For example during two AP transmit signal mutually, the wireless signal that is produced between the miscellaneous equipment in the family (can produce the equipment that disturbs to wireless channel as microwave oven etc.) can make the signal quality variation between the AP.For avoiding the communication between the AP to be interfered, the working channel that only needs to change AP gets final product.Tradition AP head it off mostly needs the user manually to change the working channel of AP, and therefore, how making AP change working channel automatically when its signal quality variation becomes the problem that manufacturers need concern.
Summary of the invention
In view of this, need provide a kind of access point, channel can automatically switch.
In addition, also need to provide a channel switching method, can make access point automatic switchover channel.
A kind of access point is used for communicating by letter with another access point, and described access point comprises that transceiver module, channel information are preserved module and channel is selected module.Transceiver module is used for sending the information that described access point produces to described another access point, and receives the information that described another access point sends.Channel information is preserved module and is used to preserve the channel information of described access point and the channel information of described another access point, and wherein said transceiver module more is used to send described channel information.Channel selects module to be used to produce channel switch request information, utilize described transceiver module to send described channel switch request information, and select a common signal channel as the communication channel between described access point and described another access point according to described channel information to described another access point.
A kind of channel switching method is used between first access point and second access point.Channel switching method comprises: first access point sends role assignments request to the second access point; Second access point sends the role assignments response to first access point, determines main access point and distribution from access point; Select request to main access point from the access point transmitting channel; Main access point transmitting channel selects response extremely from access point; Handover request to main access point from the access point transmitting channel; Main access point transmitting channel handoff response is extremely from access point; And switch to one other channel simultaneously according to channel switch request from access point and described main platform.
Access point that embodiment of the present invention provided and channel switching method utilize channel to select request automatic switchover channel, need not user's manual handle, can handle the problem that access point occurs rapidly in the signal transmission.
Description of drawings
Fig. 1 is the applied environment figure of access point in the embodiment of the present invention.
Fig. 2 is the module map of first access point among Fig. 1.
Fig. 3 is the module map of second access point among Fig. 1.
Fig. 4 is the flow chart of channel switching method in the embodiment of the present invention.
Fig. 5 is the detail flowchart of Fig. 4.
Embodiment
See also Fig. 1, be depicted as the applied environment figure of access point 20A and 20B in the embodiment of the present invention.
In digital home, master data player 10 utilizes cable to be connected to the first access point 20A.The first access point 20A utilizes the mode of radio communication and the second access point 20B to communicate to connect.The second access point 20B utilizes cable to be connected to from data player 30.In the present embodiment, the first access point 20A is identical WAP (wireless access point) with the second access point 20B, and master data player 10 can be the multimedia video data with the data of playing from data player 30.
In other embodiments, the first access point 20A and the second access point 20B also can be portable terminal.
Consult Fig. 2 and Fig. 3 simultaneously, Figure 2 shows that the module map of the first access point 20A in the embodiment of the present invention, Figure 3 shows that the module map of the second access point 20B in the embodiment of the present invention.
The first access point 20A comprises transceiver module 201, role's setting module 203, identification number generation module 205, channel quality assessment module 207, channel selection module 209 and channel information preservation module 211.The same second access point 20B also comprises transceiver module 201 ', role's setting module 203 ', identification number generation module 205 ', channel quality assessment module 207 ', channel selection module 209 ' and channel information preservation module 211 '.Because the first access point 20A is identical access point with the second access point 20B, so be the structure that example is introduced access point with the first access point 20A only hereinafter, the second access point 20B will no longer state more.
Role's setting module 203 is used to produce the role and sets solicited message, and utilizes transceiver module 201 that described role's set information is sent to the second access point 20B, and determines the identity of the first access point 20A according to the response of the second access point 20B that receives.In the present embodiment, the identity of the first access point 20A comprise main access point identity with from access point identity.If the first access point 20A is main access point, then the second access point 20B is from access point; Otherwise if the first access point 20A is from access point, then the second access point 20B is main access point.
Identification number generation module 205 is used for producing identity code at random according to the identity of the first access point 20A, and described identity code is saved to channel information preserves module 211, utilize transceiver module 201 that described identity code is informed the second access point 20B simultaneously.In the present embodiment, described identity code comprise main access point identity identification code with from the access point identity identification code.
Channel quality assessment module 207 is used to produce channel and selects request, and the quality of assessment access point available channel, produces assessment result.Channel selects request to comprise the available channel and the channel quality of requirement master access point passback self.
Channel selects module 209 to be used for producing channel switch request according to the assessment result that channel quality assessment module 207 produces, and utilizes transceiver module 201 that channel switch request is sent to the second access point 20B.Then, after the channel handoff response that receives the second access point 20B, channel selects module 209 that the channel of the current use of the first access point 20A is switched to another channel.In the present embodiment, described channel switch request comprises another channel and the switching time that needs switching.
Channel information is preserved module 211 and is used to preserve the first access point 20A all channel and channel quality, also preserves channel and channel quality thereof that the second access point 20B sends simultaneously.
Consult Fig. 4, be depicted as in the embodiment of the present invention, the flow chart of channel switching method.
In step S401, the first access point 20A sends role assignments request to the second access point 20B.In the present embodiment, request is made as the first access point 20A from access point in the described role assignments request, the second access point 20B is made as main access point, and described role assignments request is for following User Datagram Protoco (UDP) (UserDatagram Protocol, package UDP).
In other embodiments, described role assignments request also can ask the first access point 20A is made as main access point, and the second access point 20B is made as from access point.
In step S403, the second access point 20B sends the role assignments response to the described first access point 20A, to determine main access point and distribution from access point.In the present embodiment, the first access point 20A is from access point, and the second access point 20B is main access point, and the response of described role assignments is for following User Datagram Protoco (UDP) (UserDatagram Protocol, package UDP).
In step S405, the first access point 20A transmitting channel selects request to the second access point 20B.In the present embodiment, the available channel and the channel quality of first access point 20A assessment self, and utilize channel to select request to require the second access point 20B to transmit oneself available channel and channel quality.Described channel selects request for following transmission control protocol (Transmission Control Protocol, package TCP).
In step S407, the second access point 20B transmitting channel selects response to the first access point 20A.In the present embodiment, described channel selects response to comprise available channel and channel quality thereof that second access point 20B assessment back produces, and described channel selects response for following transmission control protocol (Transmission Control Protocol, package TCP).
In step S409, the available channel that the first access point 20A selects response and self assesses according to described channel determine a common signal channel, and transmitting channel handovers request to the second access point 20B.In the present embodiment, described channel switch request comprises channel and the switching time that needs switching, and described channel switch request is for following transmission control protocol (Transmission Control Protocol, package TCP).
In step S411, second access point 20B transmitting channel handoff response to the first access point 20A.In the present embodiment, described channel handoff response is for following transmission control protocol (Transmission Control Protocol, package TCP).
In step S413, the first access point 20A and the second access point 20B switch to one other channel simultaneously.
Consult the detail flowchart that Figure 5 shows that Fig. 4.
In step S501, the first access point 20A sends role assignments request to the second access point 20B.In the present embodiment, the first access point 20A at first utilizes role's setting module 201 to produce the role assignments request, then, utilizes transceiver module 203 that described role assignments request is sent to the second access point 20B.Wherein, comprise in the role assignments request that request is set at the first access point 20A from access point, and ask the second access point 20B is set at main access point, and described role assignments request is a package of following User Datagram Protoco (UDP).
In step S503, the second access point 20B sends the role assignments response to the described first access point 20A, to determine main access point and distribution from access point.In the present embodiment, the second access point 20B utilizes transceiver module 201 ' to receive role's request for allocation, and utilize role's setting module 203 ' to produce the role assignments response, then, utilize transceiver module 201 ' that the role assignments response is sent to the first access point 20A, and determining that the first access point 20A is from access point, the second access point 20B is main access point, and the response of described role assignments is for following the package of User Datagram Protoco (UDP).
In step S505, the first access point 20A transmitting channel switches and begins request to the second access point 20B.In the present embodiment, comprise from the access point identity identification code in described channel switching beginning request.It is described from the access point identity identification code that the first access point 20A utilizes identification number generation module 205 to produce, and utilize transceiver module 201 to be sent to the second access point 20B with described from the access point identity identification code.Described channel switches and begins to ask for following the package of transmission control protocol.
In step S507, the second access point 20B transmitting channel switches and begins response to the first access point 20A.In the present embodiment, comprise main access point identity identification code in described channel switching beginning response.The second access point 20B utilizes identification number generation module 205 ' to produce described main access point identity identification code, and utilizes transceiver module 201 ' that described main access point identity identification code is sent to the first access point 20A.Described channel switches and begins to respond for following the package of transmission control protocol.
In step S509, the available channel and the channel quality thereof of first access point 20A assessment self, and transmitting channel selects request to the second access point 20B.In the present embodiment, described channel selects request to be produced by channel quality assessment module 207, then, be sent to the second access point 20B by transceiver module 201, it is used for the available channel and the channel quality of requirement second access point 20B passback self, and described channel selects request for following the package of transmission control protocol.
In step S511, after the available channel and channel quality of second access point 20B assessment self, transmitting channel selects response to the first access point 20A.In the present embodiment, the second access point 20B utilizes the available channel and the channel quality of channel quality assessment module 207 assessments self, and assessment result is encapsulated in the channel selection response, utilizes transceiver module 201 ' to be sent to the first access point 20A.Described channel selects response for following the package of transmission control protocol.
In step S513, the first access point 20A produces channel switch request, and is sent to the second access point 20B.In the present embodiment, channel is selected available channel and the channel quality of module 209 according to 209 assessments of channel quality assessment module, and the available channel of second access point 20A transmission and common signal channel of channel quality selection, and produces channel switch request.Wherein, described channel switch request not only comprises the common signal channel that needs switching, more comprise switching time, and described channel switch request is to follow the package of transmission control protocol.
In step S515, second access point 20B transmitting channel handoff response to the first access point 20A.In the present embodiment, the second access point 20B utilizes channel to select module 209 ' to produce the channel handoff response, then, utilizes transceiver module 201 ' that the channel handoff response is sent to the first access point 20A.Described channel handoff response is to follow the package of transmission control protocol.
In step S517, the first access point 20A and the second access point 20B switch to one other channel simultaneously according to described channel switch request.
In step S519, the first access point 20A utilizes the channel after the described switching to send greeting information to the second access point 20B.In the present embodiment, described greeting information is produced by channel quality assessment module 207.
In step S521, the second access point 20B utilizes the channel after the described switching to send greeting information to the first access point 20A.
The access point 20A that embodiment of the present invention provided and 20B and channel switching method, utilize channel to select request and channel switch request to select automatically and switching channels, need not user's manual handle, can handle the problem that access point occurs rapidly in the signal transmission.
Claims (10)
1. an access point is used for communicating by letter with another access point, it is characterized in that described access point comprises:
Transceiver module is used for sending the information that described access point produces to described another access point, and receives the information that described another access point sends;
Channel information is preserved module, is used to preserve the channel information of described access point and the channel information of described another access point, and wherein said transceiver module more is used to send described channel information; And
Channel is selected module, be used to produce channel switch request information, utilize described transceiver module to send described channel switch request information, and select a common signal channel as the communication channel between described access point and described another access point according to described channel information to described another access point.
2. access point as claimed in claim 1 is characterized in that, more comprises:
Role's setting module is used to produce the role and sets solicited message, and utilizes described transceiver module, and described role's set information is sent to described another access point, receives the response of described another access point simultaneously, determines the identity of described access point then; And
The identification number generation module is used for producing identity code at random according to the identity of described access point, is saved to described channel information and preserves module, utilizes described transceiver module to inform described another access point simultaneously.
3. access point as claimed in claim 2 is characterized in that, the identity of described access point comprise main access point identity with from access point identity.
4. access point as claimed in claim 3 is characterized in that, more comprises the channel quality assessment module, is used to assess the available channel and the channel quality of described access point, and produces assessment result.
5. access point as claimed in claim 1 is characterized in that, described channel switch request comprises channel and the switching time that described access point requirement is switched.
6. access point as claimed in claim 5, it is characterized in that, described channel selects module more to be used for after described transmitting-receiving send module to receive the channel handoff response that described another access point sends, and according to described handoff request the channel of described access point work at present is switched to one other channel.
7. access point as claimed in claim 1 is characterized in that, described access point is a WAP (wireless access point).
8. channel switching method is used for it is characterized in that described channel switching method comprises between first access point and second access point:
Described first access point sends the role assignments request to described second access point;
Described second access point sends the role assignments response to described first access point, determines main access point and distribution from access point;
Describedly select request to described main access point from the access point transmitting channel;
Described main access point transmitting channel selects response to described from access point;
Describedly handover request to described main access point from the access point transmitting channel;
Described main access point transmitting channel handoff response is to described from access point; And
Describedly switch to one other channel simultaneously according to described channel switch request from access point and described main access point.
9. channel switching method as claimed in claim 8 is characterized in that, more comprises:
The described switching from the access point transmitting channel begins request to described main access point; And
Described main access point transmitting channel switches and begins response to described from access point.
10. channel switching method as claimed in claim 9 is characterized in that:
Described channel switches and begins to ask to comprise from the access point identity identification code;
Described channel switching beginning response comprises main access point identity identification code; And
Described channel switch request comprises another channel and the switching time that needs switching.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610157037A CN101193025B (en) | 2006-11-24 | 2006-11-24 | Access point and its channel switching method |
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| CN200610157037A CN101193025B (en) | 2006-11-24 | 2006-11-24 | Access point and its channel switching method |
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| CN101193025A true CN101193025A (en) | 2008-06-04 |
| CN101193025B CN101193025B (en) | 2010-05-19 |
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| CN200610157037A Expired - Fee Related CN101193025B (en) | 2006-11-24 | 2006-11-24 | Access point and its channel switching method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015785A1 (en) * | 2012-07-23 | 2014-01-30 | 华为终端有限公司 | Channel switching method, device, and system |
| CN103686881A (en) * | 2012-09-11 | 2014-03-26 | 华为技术有限公司 | Method, equipment and system for channel switching |
| CN104144355A (en) * | 2013-05-08 | 2014-11-12 | 数码士有限公司 | Method and apparatus of channel switching using pre-acquisited PSI table |
| CN110113784A (en) * | 2019-06-12 | 2019-08-09 | 武汉思创易控科技有限公司 | Distributed channel distributing method based on channel resource |
| CN112543494A (en) * | 2020-12-01 | 2021-03-23 | 北京时代凌宇信息技术有限公司 | Method and equipment for fast network access and automatic frequency hopping in wireless communication |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6985465B2 (en) * | 2000-07-07 | 2006-01-10 | Koninklijke Philips Electronics N.V. | Dynamic channel selection scheme for IEEE 802.11 WLANs |
| US20060013172A1 (en) * | 2004-07-16 | 2006-01-19 | Nokia Corporation | RSSI threshold selection for channel measurements based on RSSI of the received packets |
| US7929504B2 (en) * | 2004-12-23 | 2011-04-19 | Xocyst Transfer Ag L.L.C. | Systems and methods for the connection and remote configuration of wireless clients |
-
2006
- 2006-11-24 CN CN200610157037A patent/CN101193025B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014015785A1 (en) * | 2012-07-23 | 2014-01-30 | 华为终端有限公司 | Channel switching method, device, and system |
| US9048984B2 (en) | 2012-07-23 | 2015-06-02 | Huawei Device Co., Ltd. | Channel switching method, apparatus, and system |
| CN103686881A (en) * | 2012-09-11 | 2014-03-26 | 华为技术有限公司 | Method, equipment and system for channel switching |
| CN104144355A (en) * | 2013-05-08 | 2014-11-12 | 数码士有限公司 | Method and apparatus of channel switching using pre-acquisited PSI table |
| CN110113784A (en) * | 2019-06-12 | 2019-08-09 | 武汉思创易控科技有限公司 | Distributed channel distributing method based on channel resource |
| CN110113784B (en) * | 2019-06-12 | 2022-08-05 | 武汉思创易控科技有限公司 | Distributed channel allocation method based on channel resources |
| CN112543494A (en) * | 2020-12-01 | 2021-03-23 | 北京时代凌宇信息技术有限公司 | Method and equipment for fast network access and automatic frequency hopping in wireless communication |
| CN112543494B (en) * | 2020-12-01 | 2021-09-17 | 北京时代凌宇信息技术有限公司 | Method and equipment for fast network access and automatic frequency hopping in wireless communication |
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| Publication number | Publication date |
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| CN101193025B (en) | 2010-05-19 |
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Granted publication date: 20100519 Termination date: 20111124 |