IP Library Granted Patent US 7,398,435
Granted Patent B2
US 7,398,435 · App. 11/273,219 · Granted Jul 8, 2008

Method and system for adaptive interleaving

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Quick Facts
Patent No.
US 7,398,435
App. No.
11/273,219
Granted
Jul 8, 2008
Kind
B2
Abstract

A method a system for automatically controlling an adaptive interleaver involves monitoring performance parameters of a transmission system and controlling the adaptive interleaver in response to the performance parameters. The SNR and the data rate of the transmission system are preferably determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the SNR. Alternatively, the BER and the data rate of the transmission system are determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the BER. Alternatively, any one of the SNR, BER or data rate can alone be monitored and used to the adaptive interleaver. The system provides a effective system for adjusting an adaptive interleaver in response to performance parameters of a transmission system.

Claims (8)

1. A controller for an adaptive interleaver comprising:

a processor that is operative to determine a bit error rate of a transmission channel, determine a data rate of the transmission channel, analyze the bit error rate, analyze the data rate, and generate a control signal.

2. The invention of claim 1 , wherein the processor is further operative determine the bit error rate through the use of a cyclic redundancy code.

3. The invention of claim 1 , wherein the processor is further operative to determine whether the bit error rate exceeds a threshold.

4. The invention of claim 1 , wherein the processor is further operative to determine whether the data rate exceeds a threshold.

5. The invention of claim 1 , further comprising an adaptive interleaver coupled with the processor, the adaptive interleaver being operative to receive the control signal.

6. The invention of claim 5 , wherein the adaptive interleaver is operative to alter an interleaved signal in response to the control signal.

7. The invention of claim 5 , wherein the adaptive interleaver is operative to alter the interleave depth of an interleaved signal in response to the control signal.

Assignments (2)
CHANGE OF NAME Recorded Nov 5, 2009
From: AT&T KNOWLEDGE VENTURES, L.P.
To: AT&T INTELLECTUAL PROPERTY 1, L.P.
Reel/Frame 023471/0082 →
CHANGE OF NAME Recorded Jul 19, 2007
From: SBC PROPERTIES, L.P.
To: AT&T KNOWLEDGE VENTURES, L.P.
Reel/Frame 019573/0687 →