IP Library Granted Patent US 9,331,761
Granted Patent B2
US 9,331,761 · App. 14/871,834 · Granted May 3, 2016

Method and apparatus for coding and interleaving for very high throughput wireless communications

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Quick Facts
Patent No.
US 9,331,761
App. No.
14/871,834
Granted
May 3, 2016
Kind
B2
Abstract

A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter can include encoding components for receiving transmit data and generating encoded data. A multiple-input multiple-output (MIMO) stream parser can receive the encoded data and generate a plurality of MIMO streams. A first module parser coupled to a first MIMO stream can generate a first plurality of partial MIMO streams. A first bandwidth module can include a first interleaver that interleaves bits of the first partial MIMO stream and generates first interleaved data. A second bandwidth module can include a second interleaver that interleaves bits of the second partial MIMO stream and generates second interleaved data. A first inverse fast Fourier transform (IFFT) unit can combine and process the first and second interleaved data and generate a first transmission MIMO stream.

Claims (49)

1. A method of wireless transmission comprising:

generating encoded data in response to received transmit data;

parsing the encoded data to provide a plurality of multiple-input multiple-output (MIMO) streams;

parsing a first MIMO stream of the plurality of MIMO streams to provide a first plurality of partial MIMO streams, including a first partial MIMO stream and a second partial MIMO stream;

interleaving bits of the first partial MIMO stream to provide first interleaved data;

interleaving bits of the second partial MIMO stream to provide second interleaved data; and

performing a first inverse fast Fourier transform (IFFT) based on both the first and second interleaved data to generate a first transmission MIMO stream.

2. The method of claim 1 , further comprising processing the first and second partial MIMO streams on adjacent frequency bands.

3. The method of claim 1 , further comprising processing the first and second partial MIMO streams on non-adjacent frequency bands.

4. The method of claim 1 , further comprising:

interleaving bits of the first partial MIMO stream over a first frequency band; and

interleaving bits of the second partial MIMO stream over a second frequency band, different than the first frequency band.

5. The method of claim 1 , wherein parsing the first MIMO stream to provide the first plurality of partial MIMO streams comprises:

allocating even bits of the first MIMO stream to the first partial MIMO stream; and

allocating odd bits of the first MIMO stream to the second partial MIMO stream.

6. The method of claim 1 , further comprising:

parsing a second MIMO stream of the plurality of MIMO streams to provide a second plurality of partial MIMO streams, including a third partial MIMO stream and a fourth partial MIMO stream, wherein a same allocation of bits is used to provide the first and second pluralities of partial MIMO streams;

interleaving bits of the third partial MIMO stream to provide third interleaved data;

interleaving bits of the fourth partial MIMO stream to provide fourth interleaved data; and

performing a second inverse fast Fourier transform (IFFT) based on both the third and fourth interleaved data to generate a second transmission MIMO stream.

7. The method of claim 6 , wherein the first and second IFFT each provide for a 160 MHz bandwidth.

8. The method of claim 6 , further comprising:

modulating the first, second, third and fourth interleaved data to provide first, second, third and fourth modulated data, respectively;

performing spatial mapping based on the first and second modulated data, thereby providing tones for performing the first IFFT; and

performing spatial mapping based on the third and fourth modulated data, thereby providing tones for performing the second IFFT.

9. The method of claim 8 , wherein the spatial mapping is performed over 234 tones.

10. A wireless transmitter comprising:

means for generating encoded data in response to received transmit data;

means for parsing the encoded data to provide a plurality of multiple-input multiple-output (MIMO) streams;

means for parsing a first MIMO stream of the plurality of MIMO streams to provide a first plurality of partial MIMO streams, including a first partial MIMO stream and a second partial MIMO stream;

means for interleaving bits of the first partial MIMO stream to provide first interleaved data;

means for interleaving bits of the second partial MIMO stream to provide second interleaved data; and

means for performing a first inverse fast Fourier transform (IFFT) based on both the first and second interleaved data to generate a first transmission MIMO stream.

11. The wireless transmitter of claim 10 , wherein the first and second partial MIMO streams are processed on adjacent frequency bands.

12. The wireless transmitter of claim 10 , wherein the first and second partial MIMO streams are processed on non-adjacent frequency bands.

13. The wireless transmitter of claim 10 , further comprising:

means for interleaving bits of the first partial MIMO stream over a first frequency band; and

means for interleaving bits of the second partial MIMO stream over a second frequency band, different than the first frequency band.

14. The wireless transmitter of claim 10 , wherein the means for parsing the first MIMO stream to provide the first plurality of partial MIMO streams comprises:

means for allocating even bits of the first MIMO stream to the first partial MIMO stream, and allocating odd bits of the first MIMO stream to the second partial MIMO stream.

15. The wireless transmitter of claim 10 , further comprising:

means for parsing a second MIMO stream of the plurality of MIMO streams to provide a second plurality of partial MIMO streams, including a third partial MIMO stream and a fourth partial MIMO stream, wherein a same allocation of bits is used to provide the first and second pluralities of partial MIMO streams;

means for interleaving bits of the third partial MIMO stream to provide third interleaved data;

means for interleaving bits of the fourth partial MIMO stream to provide fourth interleaved data; and

means for performing a second inverse fast Fourier transform (IFFT) based on both the third and fourth interleaved data to generate a second transmission MIMO stream.

16. The wireless transmitter of claim 15 , further comprising:

means for modulating the first, second, third and fourth interleaved data to provide first, second, third and fourth modulated data, respectively;

means for performing spatial mapping based on the first and second modulated data, thereby providing tones for performing the first IFFT; and

means for performing spatial mapping based on the third and fourth modulated data, thereby providing tones for performing the second IFFT.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 20, 2015
From: QUALCOMM ATHEROS, INC.
To: QUALCOMM INCORPORATED
Reel/Frame 037150/0157 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2015
From: KIM, YOUHAN; ZHANG, NING; CHEN, CHIN-HUNG
To: QUALCOMM ATHEROS, INC.
Reel/Frame 037092/0660 →