CELLULAR DSL MODEM

• US 20100054197A1
• Filed: 12/05/2006
• Published: 03/04/2010
• Est. Priority Date: 12/05/2006
• Status: Active Grant

• Current Assignee: Thomson Licensing (Vantiva SA)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Taylor, Jeffery Lynn
• Granted Patent: US 8,223,774 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• 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 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.

2. The apparatus of claim 1, further comprising an Ethernet internet protocol switch for providing the network data.

3. The apparatus of claim 1, wherein the converter is a segmentation and reassembly module.

4. The apparatus of claim 1, further comprising 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.

5. The apparatus of claim 4, wherein the transceiver can one of receive and transmit at a variable rate and negotiate the rate at which data is transmitted.

6. The apparatus of claim 4, wherein the converter includes an asynchronous transfer mode segmentation and reassembly 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 encoder module for encoding and multiplexing at least one ATM cell on a plurality of data channels.

7. The apparatus of claim 6, wherein the ATM SAR module is configured to receive Internet Protocol packets and segment the IP packets into ATM cells.

8. The apparatus of claim 6, wherein the transmitter is configured to negotiate a variable transmission rate.

9. The apparatus of claim 6, wherein the COFDM encoder is configured to insert at least one pilot tone into the data channels.

10. The apparatus of claim 6, further comprising a wireless antenna module configured to transmit data to a cellular network.

11. The apparatus of claim 6, 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.

12. The apparatus of claim 4, wherein the converter includes an asynchronous transfer mode segmentation and reassembly 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 decoder for demultiplexing and decoding at least one data channel into a plurality of ATM cells.

13. The apparatus of claim 12, wherein the ATM SAR module is configured to receive ATM cells and reassembled the ATM cells into Internet Protocol packets.

14. The apparatus of claim 12, wherein the receiver is configured to negotiate a variable transmission rate.

15. The apparatus of claim 12, 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.

16. The apparatus of claim 12, further comprising a wireless antenna configured to receive data from a cellular network.

17. The apparatus of claim 12, 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.

18. A method comprising the steps of:

changing network data into asynchronous transfer mode data for cellular transmission as a digital subscriber line signal; and

reconstructing network data from a cellular reception of a digital subscriber line signal.

19. The method of claim 18, further comprising transmitting the asynchronous transfer data from the encoder as the digital subscriber line signal.

20. The method of claim 19, further comprising receiving data from the cellular network for reconstruction into network data by the decoder.

21. The method of claim 19, further comprising transmitting the digital subscriber line signal at a variable rate.

22. The method of claim 19, further comprising negotiating the rate at which data is transmitted.

23. The method of claim 18, wherein the steps of changing and reconstructing include segmenting and reassembling data frames for bidirectionally communicating a digital signal between a packet network and an ATM network.

24. The method of claim 20, wherein the transmitting and receiving comprise processing and transmitting the data signal, and for receiving at least one signal from the ATM SAR module, the transmitting including transmitting ATM cells at a variable rate and encoding and multiplexing at least one ATM cell on a plurality of data channels.

25. A transmitter for wireless communication of an asynchronous transfer mode signal, the transmitter comprising:

a frame controller configured to receive a plurality of input signals a fast signal buffer configured to receive a signal from the frame control module;

an interleaved signal buffer configured to receive a signal from the frame control module and configured to interleave a cyclic redundancy check check byte into the signal; and

a coded orthogonal frequency division multiplexing encoder configured to receive a signal from the fast signal buffer and a signal from the interleaved signal buffer, the COFDM encoder module configured to encode and multiplex the signals for wireless transmission at a variable transmission rate.

26. The transmitter of claim 25, the COFDM encoder configured to negotiate a variable transmission rate.

27. The transmitter of claim 25, the COFDM encoder configured to insert at least one pilot tone into the signal.

28. The transmitter of claim 25, wherein the transmitter is configured to communicate over a cellular telephone network

29. A receiver for wireless communication of an Asynchronous Transfer Mode signal, the receiver comprising:

a coded orthogonal frequency division multiplexing module configured to receive a wireless signal at a variable transmission rate and demultiplex and decode the signal, and configured to separate the signal into a fast signal and an interleaved signal;

a fast signal buffer configured to receive a signal from the COFDM decoder;

an interleaved signal buffer configured to receive a signal from the COFDM decoder and configured to de-interleave a cyclic redundancy check check byte into the signal; and

a frame controller for receiving a signal from the fast signal buffer and receive a signal from the interleaved signal buffer, the frame control module having a plurality of outputs.

30. The receiver of claim 29, the COFDM decoder configured to receive a signal at a variable reception rate.

31. The receiver of claim 30, the COFDM decoder configured to remove at least one pilot tone from the signal and correct at least one data channel using the at least one pilot tone.

32. The receiver of claim 31, wherein the receiver configured to communicate over a cellular telephone network.