Method and system for peer to peer wide area network communication

• US 8,687,613 B2
• Filed: 08/27/2010
• Issued: 04/01/2014
• Est. Priority Date: 11/30/2007
• Status: Active Grant

• Current Assignee: Motorola Solutions, Inc.
• Original Assignee: Motorola Solutions, Inc.
• Inventors: LoGalbo, Robert D., Hiben, Bradley M.
• Primary Examiner(s): MILLS, DONALD L
• Application Number:
  US12/870,007
• Publication Number:
  US 20100322137A1
• Time in Patent Office: 1,313 Days
• Field of Search: None
• US Class Current: 370/338
• CPC Class Codes: H04L 65/4046 with distributed floor control
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks
• CPC Class Codes: H04W 92/045 between access point and backbone network device

Abstract

A method and system for peer to peer wide area network communication is provided. A peer in the network receives one or more media and one or more associated control signaling from any one of a plurality of Logical Media/Control Channels, wherein each Logical Media/Control Channel is associated with a Transport Resource on a base station; formats the media into a Formatted Media Packet; formats the control signaling into an Internet Peer to Peer Control Signaling; concatenates the Formatted Media with the Internet-Peer to Peer Control Signaling to form a Concatenated Packet comprising an Internet-Peer to Peer Control Signaling and a Media Packet; duplicates the Concatenated Packet, thereby forming a duplicated Concatenated Packet comprising at least one of a unicast packet and a multicast packet; and transmits the duplicated Concatenated Packets via the wide area network.

Claims

1. A method of operation of a first peer within a distributed peer to peer wide area network, the wide area network comprising a plurality of network locations, each network location consisting of at least one peer and at least one base station, the method comprising:

identifying, by a first peer in the wide area network, an intermediary peer in the wide area network;

requesting, by the first peer and from the intermediary peer, an IP address and port number of each other peer in the wide area network;

receiving at the first peer, in response to the request and from the intermediary peer, the IP address and port number of each of a plurality of other peers in the wide area network;

assigning, by the first peer, a socket and wide area network jitter buffer for each IP address and port number of each other peer in the wide area network;

receiving, at the first peer from a mobile radio within coverage of a base station coupled to the first peer, one or more media, with one or more associated control signaling embedded therein, from any one of a plurality of Logical Channels, wherein each Logical Channel is associated with a Transport Resource at the base station;

extracting the associated control signalling from the one or more media;

concatenating, by the first peer, the media with the control signaling to form a Concatenated Packet;

packet duplicating, by the first peer, the Concatenated Packet, thereby forming a plurality of duplicated Concatenated Packets; and

unicast transmitting, by the first peer, the plurality of duplicated Concatenated Packets, each to a respective other peer via the respective assigned socket and wide area network jitter buffer of the first peer and the wide area network.

2. The method of claim 1, further comprising:

generating a hash over the Concatenated Packet prior to the packet duplicating step, and concatenating the hash to the Concatenated Packet such that packet duplicating the Concatenated Packet also duplicates the generated hash.

3. The method of claim 2 further comprising prior to the generating the hash step:

encrypting the Concatenated Packet; and

generating a Sequence Number of the Concatenated Packet and concatenating the sequence number to the Concatenated Packet.

4. The method of claim 1, wherein the wide area network comprises the Public Internet.

5. The method of claim 1, wherein the media comprises audio media, the method further comprising:

formatting the audio media within a Real-time Transport Protocol prior to concatenating with the control signaling to form the Concatenated Packet.

6. The method of claim 1, wherein the media comprises data, the method further comprising:

formatting the data within Peer to Peer Data Packets prior to concatenating with the control signaling to form the Concatenated Packet.

7. The method of claim 1, wherein the received control signaling includes at least one of a Priority, a Destination Talkgroup, a Source Mobile Radio Identification, a Call Type, and a Transport Resource Number.

8. The method of claim 1, wherein the control signaling includes a randomly generated number.

9. The method of claim 8, wherein the randomly generated number remains constant for each of the Concatenated Packets for the length of a single call.

10. The method of claim 8, wherein the randomly generated number remains changes on a time division multiplex slot by slot bases.

11. The method of claim 8, wherein the random number is used in a peer to peer floor control process to resolve packet inter-arrival conflicts.