Event-based multichannel direct link
First Claim
1. In an 802.11x wireless network comprising an access point logically connected to at least a first wireless device and a second wireless device, a A method of establishing a point-to-point connection directly between the a first wireless device and a second wireless devices device comprising:
- sending a setup request frame from the first wireless device to the second wireless device on a first communication channel via the access point, the setup request frame including a proposed second communication channel;
sending a setup response frame from the second wireless device to the first wireless device on the first communication channel via the access point; and
communicating information directly between the first and second wireless devices on the second communication channel for a first time period.
4 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein are exemplary techniques for the communication of information in a wireless system by using multiple wireless channels. A direct link between two or more wireless devices may be established by performing a direct link setup between two or more wireless devices using an access point, where the direct link setup is conducted over a base channel and the direct link is established on a parallel channel. The two or more wireless devices may switch to the parallel channel and use the established direct link to communicate information directly without the access point as an intermediary. In anticipation of a predetermined event, such as the transmission of a delivery traffic indication map (DTIM) beacon frame by the access point, the two or more wireless devices may switch back to the base channel so that uplink, downlink and/or peer-to-peer information may be transmitted and/or received.
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Citations
49 Claims
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1. In an 802.11x wireless network comprising an access point logically connected to at least a first wireless device and a second wireless device, a A method of establishing a point-to-point connection directly between the a first wireless device and a second wireless devices device comprising:
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sending a setup request frame from the first wireless device to the second wireless device on a first communication channel via the access point, the setup request frame including a proposed second communication channel; sending a setup response frame from the second wireless device to the first wireless device on the first communication channel via the access point; and communicating information directly between the first and second wireless devices on the second communication channel for a first time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. In an 802.11x wireless network comprising an access point operably connected to at least a first wireless device and a second wireless device, a A method of establishing a direct point-to-point connection between the two wireless devices comprising:
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providing information between the an access point and at least one of the a first wireless device and a second wireless devices device via a first channel for at least a portion of a first period; providing a channel change request from the first wireless device to the second wireless device on the first channel; providing an affirmative response to the channel change request from the second wireless device to the first wireless device on the first channel; switching the second wireless device to a second channel subsequent to the receipt of the acknowledgement to the provision of the affirmative response to the channel change request; switching the first wireless device to the second channel subsequent to the transmission of the acknowledgement to the receipt of the affirmative response to the channel change request; and communicating information directly between the first and second wireless devices via the second channel for at least a portion of a second period, wherein the 802.11x wireless network access point is configured to facilitate communications in an 802.11x protocol, and wherein the first channel is different than the second channel. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. In a wireless network having an access point, at least one A wireless device comprising:
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a transceiver; and a direct link module operably connected to the transceiver and configured to; facilitate an establishment of a wireless direct link between the wireless device and another wireless device on the network via a second frequency channel; communicate information with the other wireless device via the wireless direct link on the second frequency channel for at least a portion of a first period; switch the transceiver from the second frequency channel to a base channel in anticipation of a predetermined event; and communicate information with the an access point via the base channel for at least a portion of a second period, wherein the second frequency channel is different than the base channel. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A wireless system comprising:
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an access point; and at least a first wireless device and a second wireless device; wherein the first wireless device and the second wireless device are configured to; communicate information via a wireless direct link on a first channel during at least a portion of a first period; switch to a second channel in anticipation of a predetermined event; and communicate information with the access point on the second channel during at least a portion of a second period, wherein the first channel is different than the second channel. - View Dependent Claims (34, 35, 36)
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37. A wireless device comprising:
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a transceiver; and a direct link module operably connected to the transceiver and configured to; provide a channel setup request to another wireless device via an access point (AP) on a base frequency channel of the AP; receive an affirmative response to the setup request from the another wireless device via the AP on the base frequency channel; provide a setup confirmation to the another wireless device via the AP on the base frequency channel; and tune the transceiver to a second frequency channel after providing the setup confirmation, wherein the second frequency channel is different than the base frequency channel. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 46, 47)
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45. A wireless device comprising:
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a transceiver; and a direct link module operably connected to the transceiver and configured to; receive a channel setup request from another wireless device via an access point (AP) on a base channel of the AP; provide an affirmative response to the channel setup request to the another wireless device via the AP on the base channel; receive a setup confirmation from the another wireless device via the AP on the base channel; and tune the transceiver to a second channel responsive to the receipt of the setup confirmation, wherein the second channel is different than the base channel.
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48. A method of linking a first wireless device with a second wireless device comprising:
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providing a channel setup request from the first wireless device to the second wireless device via an access point (AP) on a base channel of the AP; receiving at the first wireless device an affirmative response to the channel setup request from the second wireless device via the AP on the base channel; providing a setup confirmation from the first wireless device to the second wireless device via the AP on the base channel; tuning the transceiver of the first wireless device to a second channel after providing the setup confirmation, wherein the second channel is different than the base channel; and communicating with the second wireless device over the second channel.
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49. A method of linking a first wireless device with a second wireless device comprising:
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receiving a channel setup request at the first wireless device from the second wireless device via an access point (AP) on a base channel of the AP; providing an affirmative response to the channel setup request from the first wireless device to the second wireless device via the AP on the base channel; receiving a setup confirmation at the first wireless device from the second wireless device via the AP on the base channel; tuning the transceiver to a second channel responsive to the receipt of the setup confirmation, wherein the second channel is different than the base channel; and communicating with the second wireless device over the second channel.
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Specification