US 2018/0123740 A1 · AUTONOMOUS TRANSMISSION FOR EXTENDED COVERAGE

Abstract

A user equipment unit (30) and a base station node (28) which is configured for operation with a synchronous HARQ protocol and with capability of sending data on an E-DCH channel either (1) in a nominal mode in single transmission time intervals of a predetermined length, or (2) in an extended mode in a pseudo transmission time interval. The pseudo transmission time interval comprises a first transmission time interval in which the data is transmitted and a second transmission time interval in which the data is re-transmitted. The second transmission time interval is consecutive to the first transmission time interval, and the first transmission time interval and the second transmission time interval are each of the (same) predetermined length.

Claims10

Dependent claims

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 first transmission time interval and the second transmission time interval occur sequentially within two transmission time intervals of the synchronous HARQ protocol.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/846,504Filed 19 Dec 2017

Priority

28 Sep 2006

Published

3 May 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 1/189
Arrangements specially adapted for the transmitter end: transmission or retransmission of more than one copy of a message
H04L 1/0009
Systems modifying transmission characteristics according to link quality, e.g. power backoff: by adapting the channel coding
H04L 1/1819
Hybrid protocols; Hybrid automatic repeat request [HARQ]: with retransmission of additional or different redundancy
H04L 1/0018
Where the mode-switching is based on Quality of Service requirement: based on latency requirement

Autonomous transmission for extended coverage

Life of this patent

Autonomous transmission for extended coverage

Life of this patent

Abstract

Claims10