CPC H04W 24/08 (2013.01) [H04W 52/365 (2013.01); H04W 24/10 (2013.01); H04W 84/042 (2013.01)] | 16 Claims |
1. A method performed by a user equipment (UE) in a mobile communication system, the method comprising:
receiving power headroom report (PHR) configuration information for multiple cells, wherein a first medium access control (MAC) entity for a first cell group and a second MAC entity for a second cell group are configured to the UE, wherein the first cell group is different than the second cell group; and
in response to determining that a prohibit PHR timer expires and after identifying that a pathloss of at least one activated serving cell of any of the first MAC entity for the first cell group or the second MAC entity for the second cell group has changed more than a threshold:
generating, at the first MAC entity for the first cell group in a first timing, a first PHR for the multiple cells containing PHR information for the first cell group and a second cell group based on the PHR configuration information for the multiple cells, and
generating, at the second MAC entity for the second cell group in a second timing, a second PHR for the multiple cells containing PHR information for the first cell group and the second cell group based on the PHR configuration information for the multiple cells,
wherein the first timing is determined in case that the first MAC entity for the first cell group has a resource for new uplink transmission, and
wherein the second timing is determined in case that the second MAC entity for the second cell group has a resource for new uplink transmission.
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