System, protocol and associated methods for wireless multimedia distribution

• US 20060146822A1
• Filed: 12/30/2004
• Published: 07/06/2006
• Est. Priority Date: 12/30/2004
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Wysoczynski, Jacek, Kolakowski, Mikolaj
• Application Number:
  US11/027,486
• Publication Number:
  US 20060146822A1
• Time in Patent Office: Days
• US Class Current: 370/390
• CPC Class Codes: H04L 1/1628 List acknowledgements, i.e. the acknowledgement message consisting of a list of identifiers, e.g. of sequence numbers H04L1/1614 takes precedence
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 12/1868 Measures taken after transmission, e.g. acknowledgments
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A system, protocol and associated methods for wireless multimedia distribution are generally described herein.

Claims

1. A method comprising:

transmitting informational content to one or more remote devices through a multicast communication channel over a wireless communication link; and

selectively retransmitting some subset of the informational content to a subset of the one or more remote devices through a unicast communication channel over the wireless communication link upon request.

2. A method according to claim 1, further comprising:

receiving the informational content and parsing it into two or more fragments, each fragment denoted by a sequence number.

3. A method according to claim 2, further comprising:

generating a multicast announcement for transmission to the one or more remote devices through a beacon over the wireless communication link, the multicast announcement including sequence number information associated with upcoming multicast transmissions.

4. A method according to claim 3, further comprising:

receiving a retransmission request from a device denoting a failure to receive at least a subset of the informational content transmitted via the multicast communication channel.

5. A method according to claim 4, wherein the retransmission request includes one or more sequence number(s) associated with the subset of the informational content.

6. A method according to claim 5, further comprising:

generating a message for transmission via the unicast communication channel by reading one or more informational fragment(s) from the buffer associated with the requested sequence number(s).

7. A storage medium comprising content which, when executed causes an accessing device to implement a method according to claim 1.

8. A device comprising:

a reliable multicast agent (RMA), to transmit informational content to one or more remote devices through a multicast communication channel over a wireless communication link, and to selectively retransmit some subset of the informational content to a subset of the one or more remote devices through a unicast communication channel over the wireless communication link upon request.

9. A device according to claim 8, the RMA to receive the informational content and parse it into two or more fragments, each fragment denoted by a sequence number for storage in a buffer.

10. A device according to claim 9, wherein the RMA generates a multicast announcement for transmission to the one or more remote devices through a beacon over the wireless communication link, the multicast announcement including sequence number information associated with upcoming multicast transmissions.

11. A device according to claim 10, the RMA to receive a retransmission request from a device denoting a failure to receive at least a subset of the informational content transmitted via the multicast communication channel.

12. A device according to claim 11, wherein the retransmission request includes one or more sequence number(s) associated with the subset of the informational content.

13. A device according to claim 12, the RMA to generate a message for transmission via the unicast communication channel by reading one or more informational fragment(s) from the buffer associated with the requested sequence number(s).

14. A device according to claim 8, further comprising:

a wireless transceiver, responsive to the RMA, through which the wireless communication link between the device and a remote device.

15. A device according to claim 14, further comprising:

One or more substantially omnidirectional antenna(e), responsive to the wireless transceiver, to support transmission and reception of the wireless communication link.

16. A system comprising:

a reliable multicast agent (RMA), to transmit informational content to one or more remote devices through a multicast communication channel over a wireless communication link, and to selectively retransmit some subset of the informational content to a subset of the one or more remote devices through a unicast communication channel over the wireless communication link upon request; and

one or more substantially omnidirectional antenna(e), through which the RMA may establish the multicast communication channel and the unicast communication channel over the wireless communication link with the remote device(s).

17. A system according to claim 16, the RMA to receive the informational content and parse it into two or more fragments, each fragment denoted by a sequence number for storage in a buffer.

18. A system according to claim 17, wherein the RMA generates a multicast announcement for transmission to the one or more remote devices through a beacon over the wireless communication link, the multicast announcement including sequence number information associated with upcoming multicast transmissions.

19. A system according to claim 18, the RMA to receive a retransmission request from a device denoting a failure to receive at least a subset of the informational content transmitted via the multicast communication channel.

20. A system according to claim 19, wherein the retransmission request includes one or more sequence number(s) associated with the subset of the informational content.

21. A system according to claim 20, the RMA to generate a message for transmission via the unicast communication channel by reading one or more informational fragment(s) from the buffer associated with the requested sequence number(s).