Patent · US Active

Uplink transmission timing

US9161350B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

David Better · Täby, SE
Franz Heiser · Söderhamn, SE
Tobias Tynderfeldt · Solna, SE

Key dates

Filing date	Dec 30, 2010
Grant date	Oct 13, 2015
Priority date	—
Expiry date	Apr 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04W74/0833
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Embodiments herein relates to a method in a radio base station (12) for handling a timing of uplink transmission from a user equipment (10) to the radio base station (12) in a radio communications network. The user equipment (10) is served in a cell (14) controlled by the radio base station (12), and which radio base station (12) and user equipment (10) are comprised in the radio communications network. The communications in the cell (14) are organized in radio frames comprising subframes. The radio base station (12) receives a first uplink transmission from the user equipment (10) in a subframe related to the radio base station (12). The radio base station then estimates a time parameter value based on a distance between the user equipment (10) and the radio base station (12) when the first uplink transmission is transmitted from the user equipment (10). The radio base station (12) then sets a time value (NTA1) in a message, which time value (NTA1) is to be used to set a timing of a second uplink transmission at the user equipment (10). The time value (NTA1) is based on the estimated time parameter value and a time offset value (ΔT). The radio base station (12) then transmits the …

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