Interface system for wireless node and network node

• US 20020101842A1
• Filed: 07/23/2001
• Published: 08/01/2002
• Est. Priority Date: 02/01/2001
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Donoghue, Bryan J., Harrison, Lee C., Kerr, Benjamin J, O, Lam, Tin, Turner, Edward
• Granted Patent: US 7,248,573 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

An interface between a wireless node and a network node includes an encapsulator for temporarily converting data frames into Ethernet frames for the link between the two nodes and de-encapsulating the Ethernet frames before the data is processed at the network node

Claims

1. A system for receiving data signals, comprising

a radio receiver including a baseband processor for providing serial data signals composed of data frames each including a packet payload,

means for encapsulating said data frames within Ethernet packets,

a transmission link for conveying said Ethernet packets, and

means for receiving the Ethernet packets from said link and de-encapsulating said Ethernet packets to recover said data frames

2. A system according to claim 1 and further comprising means, coupled to receive said data frames from said means for receiving, for converting said data frames into addressed Ethernet packets

3. A system according to claim 1 and including means for tagging said data frames before they are encapsulated within Ethernet packets

4. A system according to claim 1 wherein the means for encapsulating inserts at least one of said data frames followed by padding data into the message section of an Ethernet frame

5. A system according to claim 1 wherein said radio receiver is a spread spectrum radio receiver

6. A system for receiving data signals and coupling data signals to an Ethernet network, comprising

a dumb node comprising a radio receiver and an encapsulator, said radio receiver including a baseband processor for providing serial data signals composed of data frames each including a packet payload, and said encapsulator including means for encapsulating said data frames within temporary Ethernet packets,

an intelligent node comprising a de-encapsulator, and a protocol processor for providing addressed Ethernet packets for transmiision in said network, and

a physical link coupling said dunb node with said intelligent node,

wherein

said encapsulator is coupled to said physical link to send said temporary Ethernet packets to said de-encapsulator,

said de-encapsulator includes means for receiving temporary Ethernet packets from said link and de-encapsulating said temporary Ethernet packets to recover said data frames, and

said protocol processor includes means for converting said data frames into said addressed Ethernet packets

7. A system according to claim 6 wherein said encapsulator includes means for tagging said data frames before they are encapsulated within Ethernet packets

8. A system according to claim 6 wherein said encapsulator includes means for inserting at least one of said data frames followed by padding data into a message section of one of said temporary Ethernet packets