Intra-packet rate adaptation for high capacity

Patent metadata

Field	Value
Publication number	US-10873488-B2
Application number	US-201916254291-A
Country	US
Kind code	B2
Filing date	Jan 22, 2019
Priority date	Jan 22, 2019
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

Wireless communications systems and methods related to intra-packet rate adaptation are provided. A first wireless communication device communicates, with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration. The first wireless communication device receives, from the second wireless communication device, a communication signal including a first data packet based on the intra-packet MCS switching configuration. The first data packet includes at least a first portion encoded by a first MCS and a second portion encoded by a second MCS different from the first MCS.

First claim

What is claimed is:

1. A method of wireless communication, comprising:
communicating, by a first wireless communication device with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration indicating a duration from a beginning of a first data packet to a time within the first data packet for switching from a first MCS to a second MCS, the first MCS being different from the second MCS; and
receiving, by the first wireless communication device from the second wireless communication device, a communication signal including the first data packet based on the intra-packet MCS switching configuration, the first data packet including at least a first portion corresponding to the duration encoded by the first MCS and a second portion encoded by the second MCS different from the first MCS.

2. The method of claim 1 , further comprising:
transmitting, by the first wireless communication device to the second wireless communication device, an indication indicating that the first wireless communication device is capable of switching from the first MCS to the second MCS within the first data packet.

3. The method of claim 1 , further comprising:
receiving, by the first wireless communication device from the second wireless communication device, an indication indicating that the first data packet is transmitted based on a switch from the first MCS to the second MCS.

4. The method of claim 1 , wherein the communicating includes:
transmitting, by the first wireless communication device to the second wireless communication device, the intra-packet MCS switching configuration.

5. The method of claim 1 , further comprising:
determining, by the first wireless communication device, the duration for switching from the first MCS to the second MCS based on an error vector magnitude (EVM) parameter associated with the first wireless communication device.

6. The method of claim 1 , wherein the receiving includes:
receiving, by the first wireless communication device from the second wireless communication device, the first portion encoded by the first MCS; and
receiving, by the first wireless communication device from the second wireless communication device after receiving the first portion, the second portion encoded by the second MCS including a higher MCS order than the first MCS.

7. The method of claim 6 , wherein the receiving further includes:
receiving, by the first wireless communication device from the second wireless communication device, a third portion of a second data packet encoded by a third MCS; and
receiving, by the first wireless communication device from the second wireless communication device after receiving the third portion, a fourth portion of the second data packet encoded by a fourth MCS including a higher MCS order than the third MCS,
wherein the first portion and the second portion are associated with a first multiple-input multiple-output (MIMO) stream, and
wherein the third portion and the fourth portion are associated with a second MIMO stream different from the first MIMO stream.

8. The method of claim 1 , wherein the receiving includes:
receiving, by the first wireless communication device from the second wireless communication device, the communication signal indicating a switch from the first MCS to the second MCS within the first data packet.

9. The method of claim 1 , further comprising:
decoding, by the first wireless communication device, the first portion of the first data packet based on the first MCS; and
decoding, by the first wireless communication device, the second portion of the first data packet based on the second MCS.

10. A method of wireless communication, comprising:
communicating, by a first wireless communication device with a second wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration indicating a duration from a beginning of a first data packet to a time within the first data packet for switching from a first MCS to a second MCS, the first MCS being different from the second MCS; and
transmitting, by the first wireless communication device to the second wireless communication device, a communication signal including the first data packet based on the intra-packet MCS switching configuration, the first data packet including at least a first portion corresponding to the duration encoded by the first MCS and a second portion encoded by the second MCS different from the first MCS.

11. The method of claim 10 , further comprising:
receiving, by the first wireless communication device from the second wireless communication device, an indication indicating that the second wireless communication device is capable of switching from the first MCS to the second MCS within the first data packet.

12. The method of claim 10 , further comprising:
transmitting, by the first wireless communication device to the second wireless communication device, an indication indicating that the first data packet is transmitted based on a switch from the first MCS to the second MCS.

13. The method of claim 10 , further comprising:
receiving, by the first wireless communication device from the second wireless communication device, the intra-packet MCS switching configuration.

14. The method of claim 10 , further comprising:
encoding, by the first wireless communication device, the first portion of the first data packet using the first MCS; and
switching, by the first wireless communication device, to encode the second portion of the first data packet using the second MCS based on the duration indicated by the intra-packet MCS switching configuration.

15. The method of claim 10 , wherein the transmitting includes:
transmitting, by the first wireless communication device to the second wireless communication device, the first portion encoded by the first MCS; and
transmitting, by the first wireless communication device to the second wireless communication device after transmitting the first portion, the second portion encoded by the second MCS including a higher MCS order than the first MCS.

16. The method of claim 15 , wherein the transmitting further includes:
transmitting, by the first wireless communication device to the second wireless communication device, a third portion of a second data packet encoded by a third MCS; and
transmitting, by the first wireless communication device to the second wireless communication device after receiving the third portion, a fourth portion of the second data packet encoded by a fourth MCS including a higher MCS order than the third MCS,
wherein the first portion and the second portion are associated with a first multiple-input multiple-output (MIMO) stream, and
wherein the third portion and the fourth portion are associated with a second MIMO stream different from the first MIMO stream.

17. The method of claim 10 , wherein the transmitting includes:
transmitting, by the first wireless communication device from the second wireless communication device, the communication signal indicating a switch from the first MCS to the second MCS within the first data packet.

18. An apparatus comprising:
a transceiver configured to:
communicate, with a wireless communication device, an intra-packet modulation coding scheme (MCS) switching configuration indicating a duration from a beginning of a first data packet to a time within the first data packet for switching from a first MCS to a second MCS, the first MCS being different from the second MCS; and
receive, from the wireless communicati

Assignees

• Qualcomm Inc

Inventors

• Chakraborty Tuhin Subhra
• Sapra Rajat
• Muralidhar Karthik
• Boddapati Hari Krishna
• Venkatesh Swaroop
• Gore Ashutosh Deepak

Classifications

• H04L1/0035

  evaluation of received explicit signalling · CPC title

• H04L1/0025

  Transmission of mode-switching indication · CPC title

• H04L1/0015

  characterised by the adaptation strategy · CPC title

• H04B7/0413

  MIMO systems · CPC title

• H04L27/2604 Primary

  Multiresolution systems (by means of multiresolution subcarriers H04L27/183, H04L27/3488) · CPC title