CPC H04W 72/23 (2023.01) [H04L 5/0032 (2013.01); H04W 24/08 (2013.01); H04W 48/12 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/0466 (2013.01); H04W 72/535 (2023.01); H04W 76/11 (2018.02); H04W 76/27 (2018.02); H04W 80/02 (2013.01)] | 30 Claims |
1. A method comprising:
receiving, by a wireless device and via a first search space of a primary cell, first downlink control information (DCI) comprising at least one first resource assignment for the primary cell;
receiving a medium access control (MAC) control element (CE) indicating activation of a secondary cell; and
based on the receiving the MAC CE,
activating cross-carrier scheduling of the primary cell by the secondary cell; and
receiving, via a second search space of the secondary cell, second DCI comprising at least one second resource assignment for the primary cell.
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