Patent · US Active

Automatic repeat request (ARQ) protocol employing first information indicating whether to perform retransmission of an uplink data packet and second information indicating a transport format for the retransmission

US9215041B2 · kind B2 · utility

3Cited by

23References

18Claims

0Family size

Assignee

OPTIS WIRELESS TECHNOLOGY, LLC · US

Inventors

Joachim Löhr · Wiesbaden, DE
Eiko Seidel · Darmstadt, DE
Dieter Petermann · Langen, DE

Key dates

Filing date	Feb 20, 2015
Grant date	Dec 15, 2015
Priority date	—
Expiry date	Feb 20, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/1803
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A transmission apparatus controls a transport format for retransmission of data packets transmitted uplink to a receiving apparatus via at least one data channel using an automatic repeat request (ARQ) protocol. A transmitter transmits an uplink data packet via the data channel to the receiving apparatus, and a receiver receives first information along with second information from the receiving apparatus. The first information is used for determination whether to perform a retransmission of the uplink data packet at the transmission apparatus, and the second information indicates a transport format for the retransmission. The transmitter transmits the retransmission from the transmission apparatus to the receiving apparatus according to the transport format indicated in the second information element using a transmission timing based on the ARQ protocol.

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