US 12,107,690 B2
Autonomous transmission for extended coverage
Per Johan Torsner, Kyrkslätt (FI); Eva Englund, Linköping (SE); Stefan Parkvall, Bromma (SE); and Mats Fredrik Sågfors, Kyrkslätt (FI)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed on Dec. 19, 2017, as Appl. No. 15/846,504.
Application 15/846,504 is a continuation of application No. 11/536,119, filed on Sep. 28, 2006, granted, now 9,882,683.
Prior Publication US 2018/0123740 A1, May 3, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/1867 (2023.01); H04L 1/00 (2006.01); H04L 1/1812 (2023.01)
CPC H04L 1/189 (2013.01) [H04L 1/0009 (2013.01); H04L 1/1819 (2013.01); H04L 1/0018 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of autonomous transmission for extended coverage performed by a user equipment (UE), the method comprising:
establishing a communication session with a base station, the communication session configured to conform with a synchronous HARQ protocol in which re-transmissions occur a fixed number of transmission time intervals after a previous transmission or re-transmission;
transmitting data in a first transmission time interval; and
re-transmitting the same data in a second transmission time interval, wherein the re-transmission is made within the communication session;
wherein the first transmission time interval and the second transmission time interval occur sequentially, back-to-back, within two transmission time intervals of the synchronous HARQ protocol and wherein the second transmission time interval is prior to a receipt at the UE of an ACK/NACK from the base station node regarding the transmission of the data in the first transmission time interval.