Source: https://patents.google.com/patent/US9066152B2/en
Timestamp: 2019-04-21 01:27:53+00:00

Document:
2014-03-11 Assigned to VIDEO54 TECHNOLOGIES, INC. reassignment VIDEO54 TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHANAK, JOHN, GRAM, CHARLES ANDREW, KISH, WILLIAM S.
2014-03-11 Assigned to RUCKUS WIRELESS, INC. reassignment RUCKUS WIRELESS, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: VIDEO54 TECHNOLOGIES, INC.
2015-02-09 Assigned to RUCKUS WIRELESS, INC. reassignment RUCKUS WIRELESS, INC. CORRECTIVE ASSIGNMENT TO CORRECT THE SUPPORTING LEGAL DOCUMENTATION AND THE IDENTITY OF THE ASSIGNOR AND ASSIGNEE FOR THIS PATENT PROPERTY PREVIOUSLY RECORDED ON REEL 032405 FRAME 0232. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNOR TO BE "WILLIAM S. KISH" AND THE ASSIGNEE TO BE "RUCKUS WIRELESS, INC." RATHER THAN VIDEO54 TECHNOLOGIES, INC.. Assignors: KISH, WILLIAM S.
The present application is a continuation and claims the priority benefit of U.S. patent application Ser. No. 13/298,927 filed Nov. 17, 2011, now U.S. Pat. No. 8,634,402, which is a continuation and claims the priority benefit of U.S. patent application Ser. No. 12/719,006 filed Mar. 8, 2010, now U.S. Pat. No. 8,089,949, which is a continuation-in-part and claims the priority benefit of U.S. patent application Ser. No. 11/985,866 filed Nov. 16, 2007, now U.S. Pat. No. 7,787,436, which is a divisional and claims the priority benefit of U.S. patent application Ser. No. 11/232,196 filed Sep. 20, 2005, now U.S. Pat. No. 7,505,447, which claims the priority benefit of U.S. provisional application 60/625,331 filed Nov. 5, 2004, the disclosures of which are incorporated herein by reference.
U.S. patent application Ser. No. 13/298,927 is related to U.S. patent application Ser. No. 11/010,076 filed Dec. 9, 2004, now U.S. Pat. No. 7,292,198; U.S. patent application Ser. No. 11/022,080 filed Dec. 23, 2004, now U.S. Pat. No. 7,193,562; and U.S. patent application Ser. No. 11/041,145 filed Jan. 21, 2005, now U.S. Pat. No. 7,362,280, the disclosures of which are incorporated herein by reference.
U.S. patent application Ser. No. 13/298,927 is related to U.S. patent application Ser. No. 11/985,865 filed Nov. 16, 2007, now U.S. Pat. No. 8,125,975, which is a divisional of U.S. patent application Ser. No. 11/232,196 filed Sep. 20, 2005, now U.S. Pat. No. 7,505,447, the disclosures of which are incorporated herein by reference.
The access point of the wireless LAN may also support unicast packet transmission. For unicast transmission in the wireless LAN, the access point transmits one or more unicast packets to the receiving node identified by an intended destination address included in the unicast packets. After receiving the unicast packet, the receiving node transmits (approximately 9 μs later) an 802.11 acknowledgement (ACK) packet back to the access point. The 802.11 ACK mechanism provides reliable data transmission in the typically highly interfered 802.11 wireless network by confirming to the access point that the unicast packet was received.
Like the controller of FIG. 4, controller 550 may assign each of the one or more receiving nodes (560, 570, 580) in the wireless network to a group of receiving nodes. Like the apparatus of FIG. 4, the access point 530 may include multiple radios. Each group of receiving nodes may be assigned to one or more of the multiple radios, each of those radios being coupled to a wireless network interface to wirelessly transmit the one or more unicast data packets to the group of receiving nodes assigned to the radio using an 802.x protocol. The access point 530 may include a wireless network interface to allow for the wireless transmission of the one or more unicast data packets to a group of receiving nodes from the one or more receiving nodes (560, 570, 580) requesting the data corresponding to the one or more multicast data packets.
transmits the one or more unicast packets to the one or more nodes when the effective unicast data rate exceeds the group packet data rate.
2. The system of claim 1, wherein the controller transmits the multicast packet to the one or more nodes as one or more group packets when the group packet data rate exceeds the effective unicast data rate.
3. The system of claim 2, further comprising an access point communicatively coupled to the controller.
4. The system of claim 3, wherein the controller includes the access point.
5. The system of claim 3, wherein the access point includes a plurality of radios.
6. The system of claim 2, wherein the access point is communicatively coupled to the controller with a wired or a wireless connection.
7. The system of claim 2, further comprising a plurality of radios.
wherein the one or more unicast packets are transmitted to the one or more groups of nodes using the first radio and the second radio.
assigns the one or more group packets to be to be transmitted using the second radio.
10. The system of claim 2, wherein the one or more unicast packets or the one or more group packets are transmitted using the 802.1x protocol.
11. The system of claim 2, wherein the controller is a software application program stored in a memory and performed by a processor.
12. The system of claim 2, wherein the controller is an application specific microprocessor.
13. The system of claim 2, wherein the group packet is a multicast or broadcast packet.
14. The system of claim 2, wherein the communications network is a wireless local area network.
15. The system of claim 2, wherein the group packet received by the controller is a multicast or broadcast packet comprising a user datagram protocol (UDP) networking message.
16. The system of claim 2, wherein the group packet received by the controller is a multicast or broadcast packet comprising a control protocol packet.
17. The system of claim 2, wherein the controller is a node.
18. The system of claim 2, wherein the group data rate is a data rate common to each of the one or more nodes.
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