US 2017/0290001 A1 · Uplink Transmission Timing Control

Abstract

One or more embodiments herein relate to a method for an uplink transmission timing adjustment in a wireless communication device served by a network node and configured to operate in a coverage enhancement mode. The coverage enhancement mode comprises a repetitive transmission of a first uplink signal during a first repetition period. The method comprises determining a change in a downlink timing (210), determining whether the first repetition period is ongoing (240); and in response to the change in the downlink timing and the first repetition period being ongoing, performing an adjustment of an uplink transmission timing outside the first repetition period (260).

Claims41

Dependent claims

A wireless communication system comprising:

a wireless communication device configured to operate in a coverage enhancement mode comprising a repetitive transmission of a first uplink signal during a first repetition period;
and
a network node serving the wireless communication device, the network node comprising a transmitter configured to transmit a reference signal to the wireless communication device,
wherein the wireless communication device comprises a processing circuit configured to:
determine a change in a downlink timing based on the reference signal;
determine whether the first repetition period is ongoing;
and,
in response to the change in the downlink timing and the first repetition period being ongoing, perform an adjustment of an uplink transmission timing outside the first repetition period.

5 more elements

Dependencies are inferred from the claim text.

Uplink Transmission Timing Control

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Uplink Transmission Timing Control

Life of this patent

Abstract

Claims41