EP2360979A1

5G,4G

Title

Power headroom reporting for non-scheduled uplink component carriers

Application Number:

EP20100177435

Publication Date:

24-08-2011

Current Assignee:

Family ID:

Application Date:

17-09-2010

Declaring Company:

Publication Country:

US

Priority Date:

12-02-2010

Title

Power headroom reporting for non-scheduled uplink component carriers

Application Number:

EP20100177435

Family ID:

Publication Country:

US

Publication Date:

24-08-2011

Application Date:

17-09-2010

Priority Date:

12-02-2010

Current Assignee:

Declaring Company:

Abstract  Abstract

This invention relates to a proposal for power headroom reporting for uplink component carriers for which no uplink resource allocation is scheduled by the eNodeB. The user equipment (UE) calculates a virtual power headroom for the non-scheduled uplink component carrier based on a virtual uplink resource assignment pre-configured by the UE and eNodeB. According to one embodiment the maximum transmit power of the UE is set to a pre-configured fixed value. Alternatively the maximum transmit power is calculated by the UE considering the power reduction while the uplink transmission power is set to zero. The virtual power headroom is then transmitted to the eNodeB which in turn can infer therefrom the pathloss and/or power-per-resource-block for the non-scheduled uplink component carrier and may also infer the power reduction used by the UE. This allows a more accurate scheduling of future uplink transmissions on said non-scheduled uplink component carrier.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.