Patent · US Active

Energy saving in wireless devices

US10039059B2 · kind B2 · utility

1Cited by

2References

24Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Mats Näslund · Bromma, SE
Göran Selander · Bromma, SE
Vlasios Tsiatsis · Solna, SE
Elena Dubrova · Sollentuna, SE

Key dates

Filing date	Dec 20, 2013
Grant date	Jul 31, 2018
Priority date	—
Expiry date	Dec 5, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of authorizing a message received at a node in a wireless network is disclosed. The message from a sender device is formed by a plurality of symbols and includes a first message integrity indicator located at a predetermined distance from the start of the message such that further symbols of the message are included after the first message integrity indicator. The position of the first message integrity indicator in the message is determined, and a cryptographic operation is performed on at least some of the symbols of the message before the first message integrity indicator so as to generate a second message integrity indicator before the first message integrity indicator is received. The first and second message integrity indicators are compared, and an indication that the message is not authorized is provided if the second message integrity indicator does not match the first message integrity indicator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.