Multicarrier communication with variable overhead rate

• US 8,718,179 B2
• Filed: 05/15/2006
• Issued: 05/06/2014
• Est. Priority Date: 06/26/1998
• Status: Expired due to Fees

• Current Assignee: Intellectual Ventures II LLC (Intellectual Ventures LLC)
• Original Assignee: Intellectual Ventures II LLC (Intellectual Ventures LLC)
• Inventors: Tzannes, Michael A., Tzannes, Marcos C.
• Primary Examiner(s): Liu, Shuwang
• Assistant Examiner(s): TAYONG, HELENE E
• Application Number:
  US11/433,624
• Publication Number:
  US 20060251123A1
• Time in Patent Office: 2,913 Days
• Field of Search: 375/295, 327/291, 332/106, 341/20, 341/173, 370/477, 370/471, 370/472, 370/473
• US Class Current: 375/295
• CPC Class Codes: H04J 3/1688 the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling reducing bandwidth of signals in general H04B1/66; in PCM-systems H04B14/046; removal of redundancy in telegraph communication H03M7/30
• CPC Class Codes: H04L 25/0262 Arrangements for detecting the data rate of an incoming signal
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 27/2613 Structure of the reference signals
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0046 Determination of how many bits are transmitted on different sub-channels
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/1438 Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 5/1446 of transmission speed

Abstract

In the present invention, the overhead data transmission rate in a multicarrier communication system (1) may be changed and/or selected. More specifically, this rate may be selected during an initial negotiation process and/or during a steady state mode of operation.

Claims

1. A transceiver, comprising:

a physical interface, and wherein the transceiver is configured to;

control a transmission rate of overhead data by negotiating, with another transceiver, a single parameter during an initialization process or during steady-state communication, wherein the single parameter defines a set of numbered frames that include overhead bytes for a first superframe;

select the set of frames including the overhead bytes defined by the single parameter for the first superframe;

determine content of the overhead bytes;

insert the determined content of the overhead bytes to the selected set of frames;

transmit, to the another transceiver, the first superframe via the physical interface; and

renegotiate the single parameter to change an overhead data rate for a second superframe by selection of a different set of the numbered frames that include overhead bytes for the second superframe.

2. The transceiver of claim 1, wherein the transceiver is configured to, in response to renegotiating the single parameter,

select the different set of the numbered frames including the overhead bytes for the second superframe;

determine content for the overhead bytes for the second superframe; and

insert the determined content in the overhead bytes for the second superframe.

3. The transceiver of claim 1, wherein the transceiver is configured to determine the content of the overhead bytes by determining whether at least one of the overhead bytes includes cyclic redundancy check (CRC) data, indicator bit (IB) data, embedded operations channel (EOC) data and ADSL overhead channel (AOC) data.

4. A method, comprising:

negotiating, by a transceiver with another transceiver, a single parameter during an initialization process or during steady-state communication with the another transceiver, wherein the single parameter defines a set of numbered frames that include overhead bytes for a first superframe;

selecting, by the transceiver, the set of frames including the overhead bytes defined by the single parameter for the first superframe;

determining, by the transceiver, content of the overhead bytes;

inserting, by the transceiver, the determined content of the overhead bytes to the selected set of frames;

transmitting, by the transceiver, the first superframe to the another transceiver; and

renegotiating the single parameter to change an overhead date rate for a second superframe by designating a different set of the numbered frames that include overhead bytes for the second superframe.

5. The method of claim 4, further comprising:

in response to renegotiating, by the transceiver, the single parameter, selecting by the transceiver, the different set of the numbered frames including the overhead bytes for the second superframe.

6. The method of claim 4, wherein determining, by the transceiver, content of the overhead bytes includes determining an overhead byte to be one of cyclic redundancy check (CRC) data, indicator bit (IB) data, embedded operations channel (EOC) data and ADSL overhead channel (AOC) data.

7. A transceiver, comprising:

a physical interface, and wherein the transceiver is configured to;

control a reception rate of overhead data by negotiating, with another transceiver, a single parameter during an initialization process or during steady-state communication, wherein the single parameter defines a set of numbered frames that include overhead bytes for a first superframe and wherein the single parameter is configured to be renegotiated to change an overhead date rate for a second superframe to include a different set of the numbered frames that include overhead bytes for the second superframe;

receive, from the another transceiver via the physical interface, the first superframe including a selected set of frames including the overhead bytes defined by the single parameter for the first superframe, wherein the content of the overhead bytes is determined by the another transceiver prior to insertion by the another transceiver of the overhead bytes into the selected set of frames.

8. The transceiver of claim 7, wherein the transceiver is further configured to renegotiate, the single parameter to change the overhead data rate for the second superframe.

9. A system, comprising:

a first transceiver configured to;

negotiate, with a second transceiver, a single parameter during an initialization process or during steady-state communication with the second transceiver, wherein the single parameter defines a set of numbered frames that include overhead bytes for a first superframe;

select the set of frames including the overhead bytes defined by the single parameter for the first superframe;

determine content of the overhead bytes;

insert the determined content of the overhead bytes to the selected set of frames;

transmit the first superframe to the second transceiver; and

renegotiate the single parameter to change an overhead date rate for a second superframe to allow selection of a different set of the numbered frames that include overhead bytes for the second superframe.

10. The system of claim 9, wherein at least one of the first and the second transceiver is configured to select the different set of numbered frames including the overhead bytes for the second superframe in response to a message transmitted between the first and the second transceiver.

11. The system of claim 9, wherein at least one of first and the second transceiver is configured to determine content of the overhead bytes by determining an overhead byte to be at least one of cyclic redundancy check (CRC) data, indicator bit (IB) data, embedded operations channel (EOC) data and ADSL overhead channel (AOC) data.

12. The system of claim 9, wherein the first and the second transceivers are configured to transport compressed digital voice over EOC/AOC data.

13. A tangible non-transitory computer-readable medium, comprising:

a computer-readable medium including program code instructions, which in response to execution by a processor of a transceiver, cause the transceiver to;

negotiate, with another transceiver, a single parameter during an initialization process or during steady-state communication with the another transceiver, wherein the single parameter defines a numbered set of frames that include overhead bytes for a first superframe;

select the set of frames including the overhead bytes defined by the single parameter for the first superframe;

determine content of the overhead bytes;

insert the determined content of the overhead bytes to the selected set of frames;

transmit the first superframe to the another transceiver;

renegotiate the single parameter to change an overhead date rate for a second superframe by selection of a different set of the numbered frames that include overhead bytes for the second superframe.

14. The tangible non-transitory computer-readable medium of claim 13, wherein the transceiver is configured to renegotiate the single parameter based at least in part on a relative priority of overhead data and payload data.

15. The tangible non-transitory computer-readable medium of claim 13, wherein the transceiver is configured to renegotiate the single parameter based at least in part on an overhead data transmission rate requirement of an application.

16. The tangible non-transitory computer-readable medium of claim 15, wherein the application comprises a compressed voice telephony application.

17. The tangible non-transitory computer-readable medium system of claim 13, wherein the program code instructions, in response to execution by the processor, are configured to cause the transceiver to determine content of the overhead bytes by determining an overhead byte to be at least one of cyclic redundancy check (CRC) data, indicator bit (IB) data, embedded operations channel (EOC) data and ADSL overhead channel (AOC) data.