Cellular DSL modem

• US 8,223,774 B2
• Filed: 12/05/2006
• Issued: 07/17/2012
• Est. Priority Date: 12/05/2006
• Status: Expired due to Fees

• Current Assignee: Thomson Licensing (Vantiva SA)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Taylor, Jeffery Lynn
• Primary Examiner(s): GREY, CHRISTOPHER P
• Application Number:
  US12/312,878
• Publication Number:
  US 20100054197A1
• Time in Patent Office: 2,051 Days
• Field of Search: 370/395.52, 370/395.6, 370/395.64, 370464-468, 370/476, 370/208, 370/474
• US Class Current: 370/395.6
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/5601 Transfer mode dependent, e.g. ATM
• CPC Class Codes: H04L 27/2626 Arrangements specific to the transmitter only
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/085 specially adapted for interworking of IP-based networks with other networks
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 88/00 Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices

Abstract

An apparatus includes an converter for changing network data into asynchronous transfer mode data for cellular transmission as a digital subscriber line signal, and for reconstructing network data from a cellular reception of a digital subscriber line signal.

Claims

1. An apparatus comprising:

a converter for changing network data into asynchronous transfer mode (ATM) data for cellular transmission as a digital subscriber line signal and for reconstructing network data from a cellular reception of a digital subscriber line signal; and

a transceiver for transmitting the asynchronous transfer data from the converter as the digital subscriber line signal and receiving data from the cellular network for reconstruction into network data by the converter,

wherein the converter includes an asynchronous transfer mode segmentation and reassembly (ATM SAR) module for segmenting and reassembling data frames and for bidirectionally communicating a digital signal between a packet network and an ATM network; and

the transceiver is a transmitter for processing and transmitting the data signal, and for receiving at least one signal from the ATM SAR module, the transmitter being configured for transmitting ATM cells at a variable rate, the transmitter module having a coded orthogonal frequency division multiplexing (COFDM) encoder module for encoding and multiplexing at least one ATM cell on a plurality of data channels.

2. The apparatus of claim 1, wherein the ATM SAR module is configured to receive Internet Protocol (IP) packets and segment the IP packets into ATM cells.

3. The apparatus of claim 1, wherein the transmitter is configured to negotiate a variable transmission rate.

4. The apparatus of claim 1, wherein the COFDM encoder is configured to insert at least one pilot tone into the data channels.

5. The apparatus of claim 1, further comprising a wireless antenna module configured to transmit data to a cellular network.

6. The apparatus of claim 1, further comprising an Ethernet IP switch configured to receive at least one Ethernet signal and configured to communicate at least one IP packet to the ATM SAR.

7. An apparatus comprising:

a converter for changing network data into asynchronous transfer mode (ATM) data for cellular transmission as a digital subscriber line signal and for reconstructing network data from a cellular reception of a digital subscriber line signal; and

a transceiver for transmitting the asynchronous transfer data from the converter as the digital subscriber line signal and receiving data from the cellular network for reconstruction into network data by the converter,

wherein the converter includes an asynchronous transfer mode segmentation and reassembly (ATM SAR) module for segmenting and reassembling data frames, and for bidirectionally communicating a digital signal between a packet network and an ATM network; and

the transceiver including a receiver for receiving and processing the data signal, and for transmitting at least one signal from the ATM SAR module, the receiver being configured to receive ATM cells at a variable rate, the receiver having a coded orthogonal frequency division multiplexing (COFDM) decoder for demultiplexing and decoding at least one data channel into a plurality of ATM cells.

8. The apparatus of claim 7, wherein the ATM SAR module is configured to receive ATM cells and reassembled the ATM cells into Internet Protocol (IP) packets.

9. The apparatus of claim 7, wherein the receiver is configured to negotiate a variable transmission rate.

10. The apparatus of claim 7, wherein the COFDM decoder is configured to remove at least one pilot tone from the data channels and correct the data channels based on the at least one pilot tone.

11. The apparatus of claim 7, further comprising a wireless antenna configured to receive data from a cellular network.

12. The apparatus of claim 7, further comprising an Ethernet IP switch configured to receive at least one IP packet from the ATM SAR and configured to transmit at least one IP packet.