Coding and filtering for machine-type communication
US10021548B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2014 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Nov 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H21/003
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Encoding and decoding schemes at an encoding device/transmitter and decoder device/receiver, respectively, for use in communicating the state of a system. In an example method carried out by an encoding device, state information x(k), which represents the current state of a monitored system, is measured. The encoding device calculates a state update parameter, based on: a message power constraint P; the covariance N of measurement noise associated with the channel over which encoded state information is to be transmitted; and the norm of the signal vector [s(k), x(k)], where s(k) is a stored state information parameter. The encoding device then calculates a message signal z(k)=G(k)*(x(k)−s(k)), which may then be transmitted to a remote decoder device, and calculates an updated version of the stored information s(k+1)=A*(s(k)+F(k)*z(k)). The encoding device replaces the stored state information s(k) with s(k+1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.