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 method of establishing a point-to-point connection directly between the first and second wireless devices 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
56 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 method of establishing a point-to-point connection directly between the first and second wireless devices 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 method of establishing a direct point-to-point connection between the two wireless devices comprising:
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providing information between the access point and at least one of the first and second wireless devices 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 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 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 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 method comprising:
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sending, from a first wireless device, a setup request frame to a second wireless device on a first communication channel via an access point, wherein the setup request frame comprises a proposed second communication channel; receiving a setup response frame, at the first wireless device from the second wireless device, on the first communication channel via the access point, wherein the setup response frame comprises a proposed third communication channel; sending, from the first wireless device, a setup confirm frame to the second wireless device on the first communication channel via the access point; and communicating information directly between the first wireless device and the second wireless device on the third communication channel. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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44. A wireless device comprising:
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one or more processors configured to; control sending, to another wireless device, a setup request frame on a first communication channel via an access point, wherein the setup request frame comprises a proposed second communication channel; control receiving a setup response frame from the other wireless device on the first communication channel via the access point, wherein the setup response frame comprises a proposed third communication channel; control sending a setup confirm frame to the other wireless device on the first communication channel via the access point; and control communicating information directly with the other wireless device on the third communication channel. - View Dependent Claims (45, 46, 47, 48, 49, 50)
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51. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:
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instructions to control sending, to another wireless device, a setup request frame on a first communication channel via an access point, wherein the setup request frame comprises a proposed second communication channel; instructions to control receiving a setup response frame from the other wireless device on the first communication channel via the access point, wherein the setup response frame comprises a proposed third communication channel; instructions to control sending a setup confirm frame to the other wireless device on the first communication channel via the access point; and instructions to control communicating information directly with the other wireless device on the third communication channel. - View Dependent Claims (52, 53, 54, 55, 56)
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Specification