CN101472299B - Method, system and device for dynamically determining Off-Channel - Google Patents
Method, system and device for dynamically determining Off-Channel Download PDFInfo
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- CN101472299B CN101472299B CN2007103080239A CN200710308023A CN101472299B CN 101472299 B CN101472299 B CN 101472299B CN 2007103080239 A CN2007103080239 A CN 2007103080239A CN 200710308023 A CN200710308023 A CN 200710308023A CN 101472299 B CN101472299 B CN 101472299B
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- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Abstract
The invention discloses a method for dynamically confirming Off-Channel, which comprises the following steps: wireless environment and channel parameters of a local terminal and a receiving terminal are obtained by a sending terminal; the sending terminal sends out a request message, so as to switch to the receiving terminal, and the request message for switching carries an information list of a switching channel; the sending terminal receives the switching response message returned by the receiving terminal, and the response message carries the switching channel information confirmed by the receiving terminal. The invention further discloses a system and equipment for dynamically confirming the Off-Channel. The invention ensures that the Off-Channel which is available through direct connection is confirmed on a dynamic and real-time basis, so that the availability of Off-Channel is ensured.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method, system and device of dynamically confirming Off-Channel.
Background technology
In the prior art; Be connected to same AP (Access Point; Access point) two WIFI (Wireless Fidelity on; Wireless Fidelity) terminal room carries out interacting message through the data channel that AP provides, thereby sets up direct channel, because the interactive messages in the process set up of two terminal room direct channels is to be encapsulated in the Frame of two terminals through the communication channel transmission of AP to transmit; So setting up process, such direct channel is called TDLS (Tunneled Direct Link Setup, the direct-connected pattern of setting up in tunnel) again.According to the TDLS mechanism that present this standard provides, the foundation of two WIFI terminal room direct channels must depend on AP, and requires to set up two direct-connected WIFI terminals and be connected in same AP, and is as shown in Figure 1.
The direct channel of setting up between two terminals can use two channel: Base-channel (primary channel) and Off-Channel (extended channel); Base-channel be use when direct-connected between the terminal with the AP identical channel of frequency of communicating by letter, Off-Channel leaves the frequency channel inequality of communicating by letter with AP that uses behind the Base-channel when direct-connected between the terminal.Under direct-connected state, the terminal can be switched between Base-channel and Off-Channel through TDLS channel switch request TDLS_Channel_Switch_Request and TDLS channel handoff response TDLS_Channel_Switch_Response message.
Wherein, Off-Channel sets up the direct-connected request of request message TDLS_SetupRequest initiator by TDLS before direct-connected foundation, to confirm; By the direct-connected WIFI terminal of initiator before direct channel is set up through confirming Off-Channel to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment and the channel parameter information of acquisition; And set up acknowledge message TDLS_Setupconfirm through TDLS and notify the other side with the Off-Channel that confirms, use so that when direct-connected state, switch to Off-Channel by Base-channel.
In realizing process of the present invention, the inventor finds that there is following shortcoming in prior art:
The Off-Channel of prior art is definite before two direct-connected foundation in terminal, and in a single day confirms, then in the cycle that this direct channel exists, no longer changes.Because; After the direct channel at two WIFI terminals is set up; Communication path might not switch to direct access path from the AP path at once; Also not necessarily use Off-Channel (also possibly use Base-channel) even switch to direct access path, like this owing to the reason of time or wireless environment variation will cause pre-determined Off-Channel the terminal need when Base-channel switches to Off-Channel, become unavailable (as during nearby occurred and Off-channel with interference source frequently).
Summary of the invention
The embodiment of the invention provides a kind of method, system and device of dynamically confirming Off-Channel, confirms the Off-Channel of direct-connected use is dynamically instant, has guaranteed the availability of Off-Channel.
The embodiment of the invention provides a kind of method of dynamically confirming Off-Channel, may further comprise the steps:
Obtain the wireless environment and the extended channel Off-Channel parameter of local terminal and receiving terminal;
Send handoff request message to said receiving terminal, said handoff request message is carried and is switched extended channel Off-Channel information list;
Receive the switching response message that said receiving terminal returns, carry the switching extended channel Off-Channel information that said receiving terminal is confirmed in the said response message.
The embodiment of the invention provides a kind of transmission terminal, comprising:
The channel quality acquiring unit is used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal;
The unit is confirmed in the Off-Channel tabulation, is used for confirming that according to said channel quality the Off-Channel that can be used as the switching target channel tabulates;
The request message transmitting element, the Off-Channel tabulation that is used for said needs are switched sends to said receiving terminal through request message;
Direct channel is set up the unit, is used to receive the switching response message that said receiving terminal returns, and sets up direct channel according to carrying the definite switching extended channel Off-Channel information of said receiving terminal in the said response message.
The embodiment of the invention provides a kind of receiving terminal, comprising:
The request message receiving element; Be used to receive the handoff request message of sending the terminal transmission; Handoff request message according to send at said transmission terminal is obtained the Off-Channel tabulation, and said handoff request message is carried and switched extended channel Off-Channel information list;
Selected cell is used for the Off-Channel that adopts in said Off-Channel tabulation selection; Or confirm the available switching target channel Off-Channel beyond the Off-Channel tabulation according to residing wireless environment and channel conditions.
The response message transmitting element is used for the Off-Channel that selects is returned to said transmission terminal through switching response message, carries definite switching extended channel Off-Channel information in the said switching response message.
The embodiment of the invention provides a kind of system that dynamically confirms Off-Channel, comprising:
Send the terminal, be used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal, send handoff request message to said receiving terminal, said handoff request message is carried the switching channels tabulation; Behind the Off-Channel that receiving terminal is selected, set up direct channel according to said Off-Channel in said tabulation;
Receiving terminal; Be used to receive the switching channels tabulation of sending at the terminal from sending; From said tabulation, select Off-Channel; Or confirm the available switching target channel Off-Channel beyond the tabulation, and return to said transmission terminal through switching response message according to residing wireless environment and channel conditions.
In the embodiments of the invention, making can be to the Off-Channel dynamic negotiation between two direct-connected STA.Sending channel switch request before through confirming Off-Channel by the WIFI terminal (STA) of sending TDLS_Channel_Switch_Request to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment and the channel parameter information that obtain; And the up-to-date definite Off-Channel of a side that will initiate to switch through the Off-Channel parameter that in TDLS_Channel_Switch_Request message, increases newly notifies the other side; Make the Off-Channel of two direct-connected STA use current optimal, guarantee the availability of selected Off-Channel.
Description of drawings
Fig. 1 sets up two direct-connected WIFI terminals to be connected in same AP structure chart in the prior art;
Fig. 2 is a method flow diagram of dynamically confirming Off-Channel in the embodiment of the invention one;
Fig. 3 is a method flow diagram of dynamically confirming Off-Channel in the embodiment of the invention two;
Fig. 4 is a method flow diagram of dynamically confirming Off-Channel in the embodiment of the invention three;
Fig. 5 is a method flow diagram of dynamically confirming Off-Channel in the embodiment of the invention four.
Embodiment
The embodiment of the invention one provides a kind of method of dynamically confirming Off-Channel, and is as shown in Figure 2, may further comprise the steps:
Step s201; Two terminals setting up direct access path are when carrying out switching to direct access path by the AP path; Use the Base-channel of direct access path, under direct-connected state, before sending channel switch request, carry out in advance confirming one or more Off-Channel to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment of living in and the channel parameter information that obtain by the WIFI terminal equipment (STA) that sends TDLS_Channel_Switch_Request message.For example, obtain parameters such as channel loss, the error rate, signal to noise ratio.
Step s202 carries definite pairing administrative class of one or more switching target channels (RegulatoryClasses) and channel number through the parameter objectives channel list after improving in the TDLS_Channel_Switch_Request message and notifies the other side.Wherein, TDLS channel switch request frame format, as shown in table 1, comprise the destination channel indication, be set to 0 indication Base-channel; Be set to 1 indication Off-Channel; The indication of Off-Channel number.TDLS channel switch request frame transmits on direct access path.Off-Channellist is N
*2-octet is used to indicate the tabulation of initiating the selected one or more destination channel of STA.
Table 1:
| Order | Information | Note |
| 1 | The destination channel indication | 1-octet is set to 0 indication Base-channel; Be set to 1 indication Off-Channel |
| 2 | Off-Channel?list | N *2-octet is used to indicate the tabulation of initiating the selected one or more destination channel of STA |
Step s203; If the other side accepts some destination channel of carrying in request that channel switches and the handoff request; Then in the TDLS_Channel_Switch_Response response message, the Result_Code parameter is changed to 0; And the selected Off-Channel information of parameter TargetChannel feedback through increasing newly among the TDLS_Channel_Switch_Response, then two WIFI terminals (STA) use this destination channel to carry out the switching of direct-connected channel.If the other side does not accept the switching target channel that carries in request that channel switches or the handoff request; Then not carrying out direct-connected channel switches; And in TDLS_Channel_Switch_Response message, Result Code parameter is changed to 1, then feed back to the terminal of the request of sending through the parameter Target Channel that increases newly if any the Off-channel of suggestion in addition.Also can confirm the available switching target channel Off-Channel beyond the tabulation, and return to the transmission terminal through said response message according to residing wireless environment and channel conditions.TDLS channel handoff response frame format such as table 2, TDLS channel handoff response frame transmits on direct access path.
Table 2:
| Order | Information | Note |
| 1 | Object code | 1-octet is set to 1 indication handoff request and is accepted; Being set to 0 indication handoff request is rejected. |
| 2 | Off-channel | 2-octet is used to the channel of indicating Peer STA to confirm. |
The embodiment of the invention two provides a kind of method of dynamically confirming Off-Channel, and is as shown in Figure 3, may further comprise the steps:
Step s30l; Two terminals setting up direct access path are when carrying out switching to direct access path by the AP path; Use the Base-channel of direct access path, under direct-connected state, before sending channel switch request, carry out in advance confirming Off-Channel to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment of living in and the channel parameter information that obtain by the WIFI terminal equipment (STA) that sends TDLS_Channel_Switch_Request message.For example, obtain parameters such as channel loss, the error rate, signal to noise ratio.
Step s302; When indicating the channel of current switching to be Off-Channel, indicate pairing administrative class of selected Off-Channel (Regulatory Classes) and channel number to the other side through in TDLS_Channel_Switch_Request message, increasing the Off-Channel parameter through Target Channel parameter in the TDLS_Channel_Switch_Request message.Wherein, TDLS channel switch request frame format, as shown in table 3, comprise the destination channel indication, be set to 0 indication Base-channel; Be set to 1 indication Off-Channel; The indication of Off-Channel number.TDLS channel switch request frame transmits on direct access path.
Table 3:
| Order | Information | Note |
| 1 | Destination channel | 1-octet is set to 0 indication Base-channel; Be set to 1 indication Off-Channel |
| 2 | Off-Channel | 1-octet, indication Off-Channel number.(be used to indicate Off-Channel under administrative class and channel number) |
Step s303; If the other side accepts the Off-Channel that carries in handoff request and the handoff request of channel; Then two WIFI terminals (STA) use this Off-Channel as direct-connected channel, and in the TDLS_Channel_Switch_Response response message, Result Code parameter are changed to 0.If the other side does not accept the Off-Channel that carries in request that channel switches or the handoff request, then can in TDLS_Channel_Switch_Response message, Result Code parameter be changed to 1.Wherein, TDLS channel handoff response frame format such as table 4 comprise object code, are set to 1 indication handoff request and are accepted; Being set to 0 indication handoff request is rejected.TDLS channel handoff response frame transmits on direct access path.
Table 4:
| Order | Information | Note |
| 1 | Object code | 1-octet is set to 1 indication handoff request and is accepted; Being set to 0 indication handoff request is rejected. |
The embodiment of the invention three provides a kind of method of dynamically confirming Off-Channel, and is as shown in Figure 4, may further comprise the steps:
Step s401; Two terminals setting up direct access path are when carrying out switching to direct access path by the AP path; Use the Base-channel of direct access path, prior through confirming the switching target channel before sending channel switch request under this direct-connected state to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment of living in and the channel parameter information that obtain by the WIFI terminal equipment (STA) that sends the TDLS_Channel_Switch_Request channel switch request.
Step s402 directly carries definite pairing administrative class of switching target channel (Regulatory Classes) and channel number through the parameter Target Channel after improving in the TDLS_Channel_Switch_Request message and notifies the other side.Wherein, TDLS channel switch request frame format such as table 5, TDLS channel switch request frame transmits on direct access path, and switching meeting Base-channel will always be accepted.
Table 5:
| Order | Information | ?Notes |
| 1 | Destination channel | 2-octet, the destination channel of indicating direct-connected channel to switch |
Step s503; If the other side accepts the destination channel of carrying in request that channel switches and the handoff request; Then in the TDLS_Channel_Switch_Response response message, Result Code parameter is changed to 0, then two WIFI terminals (STA) use this destination channel to carry out the switching of direct-connected channel.If the other side does not accept the switching target channel that carries in request that channel switches and the handoff request, then do not carry out direct-connected channel and switch, and in TDLS_Channel_Switch_Response message, Result Code parameter is changed to 1.TDLS channel handoff response frame format such as table 6, TDLS channel handoff response frame transmits on direct access path.
Table 6:
| Order | Information | Note |
| 1 | Object code | 1-octet is set to 1 indication handoff request and is accepted; Being set to 0 indication handoff request is rejected |
The embodiment of the invention four provides a kind of method of dynamically confirming Off-Channel, and is as shown in Figure 5, may further comprise the steps:
Step s501; Two terminals setting up direct access path are when carrying out switching to direct access path by the AP path; Use the Base-channel of direct access path, prior through confirming one or more switching target channels before sending channel switch request by the WIFI terminal equipment (STA) that sends the TDLS_Channel_Switch_Request channel switch request under direct-connected state to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment of living in and the channel parameter information that obtain.
Step s502 carries definite pairing administrative class of one or more switching target channels (RegulatoryClasses) and channel number through the parameter objectives channel list after improving in the TDLS_Channel_Switch_Request message and notifies the other side.TDLS channel switch request frame format such as table 7, TDLS channel switch request frame transmits on direct access path, and switching meeting Base-channel will always be accepted.
Table 7:
| Order | Information | ?Notes |
| 1 | The destination channel tabulation | ?N *2-octet, the tabulation that comprises one or more destination channel of indicating direct-connected channel to switch |
Step s503; If the other side accepts some destination channel of carrying in request that channel switches and the handoff request; Then in the TDLS_Channel_Switch_Response response message, Result Code parameter is changed to 0; And the selected Off-Channel information of parameter TargetChannel feedback through increasing newly among the TDLS_Channel_Switch_Response, then two WIFI terminals (STA) use this destination channel to carry out the switching of direct-connected channel.If the other side does not accept the switching target channel that carries in request that channel switches or the handoff request; Then not carrying out direct-connected channel switches; And in TDLS_Channel_Switch_Response message, Result Code parameter is changed to 1, then feed back to the terminal of the request of sending through the parameter Target Channel that increases newly if any the Off-channel of suggestion in addition.TDLS channel handoff response frame format such as table 8, TDLS channel handoff response frame transmits on direct access path.
Table 8:
| Order | Information | Note |
| 1 | Object code | 1-octet is set to 1 indication handoff request and is accepted; Being set to 0 indication handoff request is rejected |
| 2 | Destination channel | 2-octet indicates direct-connected channel to switch the destination channel of decision or suggestion |
The embodiment of the invention also provides a kind of system that dynamically confirms Off-Channel; Comprise: send the terminal; Be used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal, send handoff request message to said receiving terminal, said handoff request message is carried switching channels information; Receiving terminal; Be used for determining whether to set up direct channel according to the switching channels information that send at said transmission terminal; Or according to residing wireless environment and the available switching target channel Off-Channel beyond the definite tabulation of channel conditions; And return switching response message to said transmission terminal, carry said receiving terminal in the said response message and whether use said switching channels to set up the information of direct channel.
Said transmission terminal specifically comprises: the channel quality acquiring unit is used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal; Off-Channel confirms the unit, is used for confirming that according to said channel quality the Off-Channel that can be used as the switching target channel tabulates; The request message transmitting element is used for the channel that said needs switch is sent to said receiving terminal through request message.
Said receiving terminal specifically comprises: the request message receiving element, and be used to receive and send the request message that send at the terminal, obtain Off-Channel; Judging unit is used to judge whether to adopt said Off-Channel to set up direct channel; Direct channel is set up the unit, when being used for setting up, sets up direct channel; The response message transmitting element, the reason that is used to set up direct channel or refuse foundation is notified said transmission terminal.
The embodiment of the invention also provides a kind of system that dynamically confirms Off-Channel; Comprise: send the terminal; Be used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal, send handoff request message to said receiving terminal, said handoff request message is carried the switching channels tabulation; Behind the Off-Channel that receiving terminal is selected, set up direct channel according to said Off-Channel in said tabulation; Receiving terminal is used to receive the switching channels tabulation of sending at the terminal from sending, and from said tabulation, selects Off-Channel, and returns to said transmission terminal through switching response message.
Said transmission terminal specifically comprises: the channel quality acquiring unit is used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal; The unit is confirmed in the Off-Channel tabulation, is used for confirming the Off-Channel tabulation that needs switch according to said channel quality; The request message transmitting element is used for the channel list that said needs switch is sent to said receiving terminal through request message; Direct channel is set up the unit, is used at receiving terminal behind the Off-Channel that said tabulation is selected, setting up direct channel according to said Off-Channel.
Said receiving terminal specifically comprises: the request message receiving element, and be used to receive and send the request message that send at the terminal, obtain the Off-Channel tabulation; Selected cell is used for the Off-Channel in said tabulation selection employing, or confirms the available switching target channel Off-Channel beyond the tabulation according to residing wireless environment and channel conditions; The response message transmitting element; Be used for the Off-Channel that selects (if tabulation does not have suitable channel; Can advise other channel) return to said transmission terminal through response message, said response message transmitting element is used for that also (refusal) set up the reason of failing and notifies said transmission terminal.
In the embodiments of the invention, making can be to the Off-Channel dynamic negotiation between two direct-connected STA.Sending channel switch request before through confirming Off-Channel by the WIFI terminal (STA) of sending TDLS_Channel_Switch_Request to the measurement of wireless environment and channel parameter and according to the distant terminal wireless environment and the channel parameter information that obtain; And the up-to-date definite Off-Channel of a side that will initiate to switch through the Off-Channel parameter that in TDLS_Channel_Switch_Request message, increases newly notifies the other side; Make the Off-Channel of two direct-connected STA use current optimal, guarantee the availability of selected Off-Channel.
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.
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 (11)
1. a method of dynamically confirming extended channel Off-Channel is characterized in that, may further comprise the steps:
Obtain the wireless environment and the extended channel Off-Channel parameter of local terminal and receiving terminal;
Send handoff request message to said receiving terminal, said handoff request message is carried and is switched extended channel Off-Channel information list;
Receive the switching response message that said receiving terminal returns, carry the switching extended channel Off-Channel information that said receiving terminal is confirmed in the said response message.
2. dynamically confirm the method for Off-Channel according to claim 1, it is characterized in that wireless environment and channel parameter that said transmission terminal obtains local terminal and receiving terminal specifically comprise:
Obtain the channel quality of local terminal and receiving terminal, comprising: channel strength, channel disturbance and the error rate;
Channel quality according to said local terminal and receiving terminal is confirmed corresponding Off-Channel.
3. dynamically confirm the method for Off-Channel according to claim 1, it is characterized in that, carry the definite switching channels information of said receiving terminal in the said response message and specifically comprise:
Receiving terminal judges in the said switching channels information list whether available Off-Channel is arranged;
If have, then choose one of them Off-Channel, and return to the transmission terminal through said response message; Or, confirm the available switching target channel Off-Channel beyond the tabulation according to residing wireless environment and channel conditions, and return to the transmission terminal through said response message.
4. like the said method of dynamically confirming Off-Channel of claim 3, it is characterized in that, also comprise: the reason that said receiving terminal will refuse to set up direct channel through response message is notified said transmission terminal.
5. dynamically confirm the method for Off-Channel according to claim 1, it is characterized in that said switching channels information is corresponding administrative class and channel number of switching channels Off-Channel.
6. a system that dynamically confirms Off-Channel is characterized in that, comprising:
Send the terminal, be used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal, send handoff request message to said receiving terminal, said handoff request message is carried the switching channels tabulation; Behind the Off-Channel that receiving terminal is selected, set up direct channel according to said Off-Channel in said tabulation;
Receiving terminal; Be used to receive the switching channels tabulation of sending at the terminal from sending; From said tabulation, select Off-Channel; Or confirm the available switching target channel Off-Channel beyond the tabulation, and return to said transmission terminal through switching response message according to residing wireless environment and channel conditions.
7. like the said system that dynamically confirms Off-Channel of claim 6, it is characterized in that said transmission terminal specifically comprises:
The channel quality acquiring unit is used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal;
The unit is confirmed in Off-Channel tabulation, is used for confirming can be used as according to said channel quality the Off-Channel channel list of switching target channel;
The request message transmitting element is used for the channel list that said needs switch is sent to said receiving terminal through request message;
Direct channel is set up the unit, is used at receiving terminal behind the Off-Channel that said tabulation is selected, setting up direct channel according to said Off-Channel.
8. like the said system that dynamically confirms Off-Channel of claim 6, it is characterized in that said receiving terminal specifically comprises:
The request message receiving element is used to receive and sends the request message that send at the terminal, obtains the Off-Channel tabulation;
Selected cell is used for the Off-Channel that adopts in said tabulation selection; Or according to residing wireless environment and the available switching target channel Off-Channel beyond the definite tabulation of channel conditions;
The response message transmitting element is used for the Off-Channel that selects is returned to said transmission terminal through response message.
9. like the said system that dynamically confirms Off-Channel of claim 8, it is characterized in that said response message transmitting element also is used for notifying said transmission terminal with the reason that refusal is set up.
10. one kind is sent the terminal, it is characterized in that, comprising:
The channel quality acquiring unit is used to obtain the wireless environment and the channel parameter of local terminal and receiving terminal;
The unit is confirmed in the Off-Channel tabulation, is used for confirming the Off-Channel tabulation that needs switch according to said channel quality;
The request message transmitting element, the Off-Channel tabulation that is used for said needs are switched sends to said receiving terminal through request message;
Direct channel is set up the unit, is used to receive the switching response message that said receiving terminal returns, and sets up direct channel according to carrying the definite switching extended channel Off-Channel information of said receiving terminal in the said response message.
11. a receiving terminal is characterized in that, comprising:
The request message receiving element is used to receive and sends the handoff request message that send at the terminal, obtains the Off-Channel tabulation according to the handoff request message that send at said transmission terminal, and said handoff request message is carried and switched extended channel Off-Channel information list;
Selected cell is used for the Off-Channel in said Off-Channel tabulation selection employing, or confirms the available switching target channel Off-Channel beyond the Off-Channel tabulation according to residing wireless environment and channel conditions;
The response message transmitting element is used for the Off-Channel that selects is returned to said transmission terminal through switching response message, carries definite switching extended channel Off-Channel information in the said switching response message.
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| CN2007103080239A CN101472299B (en) | 2007-12-28 | 2007-12-28 | Method, system and device for dynamically determining Off-Channel |
| PCT/CN2008/073726 WO2009089727A1 (en) | 2007-12-28 | 2008-12-25 | A method, system and device for dynamically determining off-channel |
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| CN2007103080239A CN101472299B (en) | 2007-12-28 | 2007-12-28 | Method, system and device for dynamically determining Off-Channel |
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| TW201603621A (en) * | 2009-09-18 | 2016-01-16 | 內數位專利控股公司 | Method and apparatus for providing peer to peer communication with network connection |
| US8374100B2 (en) | 2009-12-24 | 2013-02-12 | Intel Corporation | Method and system for multiband rate scaling |
| CN102349260B (en) * | 2011-07-11 | 2014-10-08 | 华为技术有限公司 | Channel expansion method, method and system |
| WO2015042967A1 (en) * | 2013-09-30 | 2015-04-02 | 华为终端有限公司 | Channel switching method, apparatus and device |
| EP3576441A1 (en) * | 2018-05-31 | 2019-12-04 | Koninklijke Philips N.V. | Device for wireless communication handover |
| CN111988826B (en) * | 2020-09-21 | 2023-03-31 | 展讯通信（上海）有限公司 | STA channel switching method and device under TDLS connection, storage medium and terminal |
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| CN1848982A (en) * | 2005-07-15 | 2006-10-18 | 华为技术有限公司 | Method for updating A2p interface bearing parameter |
| CN101015172A (en) * | 2004-07-14 | 2007-08-08 | 英特尔公司 | Systems and methods of distributed self-configuration for extended service set mesh networks |
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| US7457620B2 (en) * | 2005-07-15 | 2008-11-25 | Cisco Technology, Inc. | Off-channel beacons in a wireless network |
| US8077683B2 (en) * | 2005-11-03 | 2011-12-13 | Interdigital Technology Corporation | Method and system for performing peer-to-peer communication between stations within a basic service set |
| US7920885B2 (en) * | 2006-05-18 | 2011-04-05 | Samsung Electronics Co., Ltd. | Method and system for establishing a connection on a secondary frequency channel for wireless communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101015172A (en) * | 2004-07-14 | 2007-08-08 | 英特尔公司 | Systems and methods of distributed self-configuration for extended service set mesh networks |
| CN1848982A (en) * | 2005-07-15 | 2006-10-18 | 华为技术有限公司 | Method for updating A2p interface bearing parameter |
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| WO2009089727A1 (en) | 2009-07-23 |
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