Patent · US Active

Method and apparatus for ACK/NACK reporting

US8473800B2 · kind B2 · utility

1Cited by

0References

25Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Håkan Axelsson · Säter, SE
Johnny Ahl · Linghem, SE
Paul Schliwa-Bertling · Ljungsbro, SE
Lars Sohl · Säter, SE
Hans Torstensson · Säter, SE

Key dates

Filing date	Sep 9, 2009
Grant date	Jun 25, 2013
Priority date	—
Expiry date	Jan 5, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/1664
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method, node, and system are provided that overcome problems with using inaccurate estimates of a current round trip time RTT for verifying the ACK/NACK information received in an ACK/NACK report, e.g., a piggy-backed ACK/NACK (PAN). This is accomplished by de-coupling the RTT from the ACK/NACK analysis performed in the sending node that receives the ACK/NACK report. As a result, unnecessary re-transmissions are avoided, communication delays are decreased, and spectrum and other system resources are used more efficiently.

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