US 10,651,903 B2 · Autocorrelation and memory allocation for wireless communication

Abstract

Examples described herein include systems and methods which include wireless devices and systems with examples of an autocorrelation calculator. An electronic device including an autocorrelation calculator may be configured to calculate an autocorrelation matrix including an autocorrelation of symbols indicative of a first radio frequency (“RF”) signal and a second RF signal. The electronic device may calculate the autocorrelation matrix based on a stored autocorrelation matrix and the autocorrelation of symbols indicative of the first RF signal and symbols indicative of the second RF signal. The stored autocorrelation matrix may represent another received signal at a different time period than a time period of the first and second RF signals. Examples of the systems and methods may facilitate the processing of data for wireless and may utilize less memory space than a device than a scheme that stores and calculates autocorrelation from a large dataset computed from various time points.

Claims20

Dependent claims

An electronic device comprising:

a first receive path configured to receive a first radio frequency (RF) signal during a first time period and receive a second RF signal during a second time period;
a second receive path configured to receive a third RF signal during the first time period and receive a fourth RF signal during the second time period;
and
an autocorrelation calculator coupled to the first receive path and the second receive path, the autocorrelation calculator configured to:
determine a first autocorrelation matrix representative of an autocorrelation of symbols comprising symbols indicative of the first RF signal and symbols indicative of the third RF signal received during the first time period;
store the first autocorrelation matrix in a memory;
and
determine a second autocorrelation matrix based on the first autocorrelation matrix and an autocorrelation of symbols comprising symbols indicative of the second RF signal and symbols indicative of the fourth RF signal received during the second time period.

5 more elements

A system comprising:

a first antenna and a second antenna;
a first multi-input and multi-output (MIMO) transmission channel coupled to the first antenna and configured to receive a first radio frequency (RF) signal during a first time period and a second RF signal during a second time period;
a second MIMO transmission channel coupled to the second antenna and configured to receive a third RF signal during the first time period and a fourth RF signal during the second time period;
and
an autocorrelation calculator coupled to the first MIMO transmission channel and the second MIMO transmission channel, the autocorrelation calculator configured to:
determine a first autocorrelation matrix representative of an autocorrelation of symbols comprising symbols indicative of the first RF signal and symbols indicative of the third RF signal received during the first time period;
and
determine a second autocorrelation matrix based on the first autocorrelation matrix and an autocorrelation of symbols comprising symbols indicative of the second RF signal and symbols indicative of the fourth RF signal received during the second time period.

5 more elements

Dependencies are inferred from the claim text.

Autocorrelation and memory allocation for wireless communication

Life of this patent

Autocorrelation and memory allocation for wireless communication

Life of this patent

Abstract

Claims20