Method and apparatus for configurable MIMO processing in wireless communications

Patent metadata

Field	Value
Publication number	US-10735133-B2
Application number	US-201816028135-A
Country	US
Kind code	B2
Filing date	Jul 5, 2018
Priority date	Jul 6, 2017
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

A method in a transmitter station includes: generating payload data for transmission to a receiver station via a plurality of antennae of the transmitter station; selecting a number of transmit streams for transmission of the payload data; selecting respective modulation schemes for each of the transmit streams; according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoder mode, generating the number of coded, modulated transmit streams; wherein each coded, modulated transmit stream contains a portion of the payload data; and providing the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.

First claim

The invention claimed is:

1. A method in a transmitter station, comprising:
generating payload data for transmission to a receiver station via a plurality of antennae of the transmitter station;
selecting a number of transmit streams for transmission of the payload data;
selecting respective modulation schemes for each of the transmit streams;
according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoding mode, generating the number of coded, modulated transmit streams by, when the active one of the single-encoder mode and the per-stream encoding mode is per-stream encoding mode:
providing the payload data to a stream parser for generation of the number of un-coded transmit streams;
providing the un-coded transmit streams to respective encoders for generation of the number of coded transmit streams; and
providing the coded transmit streams to respective modulators for generation of the coded, modulated transmit streams;

wherein each coded, modulated transmit stream contains a portion of the payload data; and
providing the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.

2. The method of claim 1 , further comprising:
prior to generating the coded, modulated transmit streams, selecting the active one of the encoding modes.

3. The method of claim 2 , further comprising, when the active one of the single-encoder mode and the per-stream encoding mode is the single-encoder mode:
providing the payload data to a single encoder for generation of coded payload data;
providing the coded payload data to a stream parser for generation of the number of coded transmit streams; and
providing the coded transmit streams to respective modulators for generation of the coded, modulated transmit streams.

4. The method of claim 3 , wherein the single encoder is a low-density parity check (LDPC) encoder.

5. The method of claim 1 , wherein the transmitter station includes only a single encoder; and wherein the single-encoder mode is preconfigured as the active one of the single-encoder mode and the per-stream encoding mode.

6. The method of claim 1 , further comprising:
concatenating header data with the payload data, the header data including an indicator of the active one of the single-encoder mode and the per-stream encoding mode.

7. The method of claim 6 , wherein the indicator is a field in the header data containing a bit flag indicating the active one of the single-encoder mode and the per-stream encoding mode.

8. A transmitter station, comprising:
a plurality of antennae; and
a controller connecting to the plurality of antennae, the controller configured to:
generate payload data for transmission to a receiver station via the plurality of antennae;
select a number of transmit streams for transmission of the payload data;
select respective modulation schemes for each of the transmit streams;
according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoding mode, in order to generate the number of coded, modulated transmit streams when the active one of the single-encoder mode and the per-stream encoding mode is per-stream encoding mode:
provide the payload data to a stream parser for generation of the number of un-coded transmit streams;
provide the un-coded transmit streams to respective encoders for generation of the number of coded transmit streams; and
provide the coded transmit streams to respective modulators for generation of the coded, modulated transmit streams; wherein each coded, modulated transmit stream contains a portion of the payload data; and

provide the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.

9. The transmitter station of claim 8 , wherein the controller is further configured to:
prior to generating the coded, modulated transmit streams, select the active one of the encoding modes.

10. The transmitter station of claim 9 , wherein the controller is further configured to, when the active one of the single-encoder mode and the per-stream encoding mode is the single-encoder mode:
provide the payload data to a single encoder for generation of coded payload data;
provide the coded payload data to a stream parser for generation of the number of coded transmit streams; and
provide the coded transmit streams to respective modulators for generation of the coded, modulated transmit streams.

11. The transmitter station of claim 10 , wherein the single encoder is a low-density parity check (LDPC) encoder.

12. The transmitter station of claim 8 , wherein the transmitter station includes only a single encoder; and wherein the single-encoder mode is preconfigured as the active one of the single-encoder mode and the per-stream encoding mode.

13. The transmitter station of claim 8 , wherein the controller is further configured to:
concatenate header data with the payload data, the header data including an indicator of the active one of the single-encoder mode and the per-stream encoding mode.

14. The transmitter station of claim 13 , wherein the indicator is a field in the header data containing a bit flag indicating the active one of the single-encoder mode and the per-stream encoding mode.

15. A non-transitory computer-readable medium storing a plurality of instructions executable by a controller of a transmitter station for:
generating payload data for transmission to a receiver station via a plurality of antennae of the transmitter station;
selecting a number of transmit streams for transmission of the payload data;
selecting respective modulation schemes for each of the transmit streams;
according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoding mode, generating the number of coded, modulated transmit streams by, when the active one of the single-encoder mode and the per-stream encoding mode is per-stream encoding mode;
provide the payload data to a stream parser for generation of the number of un-coded transmit streams;
provide the un-coded transmit streams to respective encoders for generation of the number of coded transmit streams; and
provide the coded transmit streams to respective modulators for generation of the coded, modulated transmit streams; wherein each coded, modulated transmit stream contains a portion of the payload data; and

providing the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.

Assignees

• Peraso Tech Inc

Inventors

• Cheng Gary
• Andonieh Joseph
• Lynch Bradley Robert
• Hansen Christopher James

Classifications

• H04L1/0618 Primary

  Space-time coding · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04B7/0413 Primary

  MIMO systems · CPC title

• H04L1/0031

  Multiple signaling transmission (H04L1/1664, F15 take precedence) · CPC title

• H04L1/0009

  by adapting the channel coding (H04L1/1812 takes precedence) · CPC title