US8620334B2

5G,4G

Title

Method and apparatus for carrier assignment configuration and switching for multicarrier wireless communications

Application Number:

US20100723416

Publication Date:

31-12-2013

Current Assignee:

INTERDIGITAL INC

Family ID:

42289119

Application Date:

12-03-2010

Publication Country:

US

View on Espacenet

Priority Date:

13-03-2009

Declaring Company:

INTERDIGITAL INC

Abstract  Abstract

As part of carrier assignment and configuration for multicarrier wireless communications a single uplink (UL) primary carrier may provide control information for multiple concurrent downlink (DL) carriers. Optionally control information for each DL carrier may be transmitted over paired UL carriers. Carrier switching of UL and/or DL carriers including primary and anchor carriers may occur during normal operation or during handover and may occur in only the UL or only the DL direction. A unidirectional handover is performed when only an UL carrier or only a DL carrier is switched as part of a handover. Switching of UL and/or DL carriers may be from one component carrier or a subset of carriers to another component carrier another subset of carriers or all carriers in the same direction.

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