EP2534784A1

5G,4G

Title

Efficient indication of component carrier activation and deactivation and SRS transmission using resource assignments

Application Number:

EP20110702401

Publication Date:

19-12-2012

Current Assignee:

SUN PATENT TRUST

Family ID:

42289312

Application Date:

02-02-2011

Declaring Company:

PANASONIC CORP , SUN PATENT TRUST

Publication Country:

US

Priority Date:

12-02-2010

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Title

Efficient indication of component carrier activation and deactivation and SRS transmission using resource assignments

Application Number:

EP20110702401

Family ID:

42289312

Publication Country:

US

Publication Date:

19-12-2012

Application Date:

02-02-2011

Priority Date:

12-02-2010

Current Assignee:

SUN PATENT TRUST

Declaring Company:

PANASONIC CORP , SUN PATENT TRUST

View on Espacenet goto-link

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.

This invention relates to a proposal of an uplink resource assignment format and a downlink resource assignment format. Furthermore the invention relates to the use of the new uplink/downlink resource assignments in methods for (de) activation of downlink component carrier (s) configured for a base station and a mobile terminal. To enable efficient and robust (de) activation of component carriers while minimizing the signaling overhead the invention proposes a new uplink/downlink resource assignment format that allow the activation/deactivation of individual downlink component carriers configured for a mobile. The new uplink or downlink resource assignment comprises an indication of the activation state of the configured downlink component carriers i.e. indicate which downlink component carrier (s) is/are to be activated or deactivated. This indication is for example implemented by means of a bit- mask that indicates which of the configured uplink component carriers are to be activated respectively deactivated.

Note:

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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.

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