Patent ID: 9210671
Filing Date: 2015-12-08
Classification: H04W

Abstract:
1. A method of transmitting power headroom reports from a wireless terminal to a base station, wherein a primary component carrier and at least one secondary component carrier are provided for uplink transmissions from the wireless terminal to the base station, wherein a respective component carrier index is assigned to each of the at least one secondary component carriers provided for the wireless terminal, the method comprising: generating respective power headroom reports for the primary component carrier and for each of the at least one secondary component carriers; generating a MAC control element including the power headroom reports for the primary and secondary component carriers, wherein a Type 2 and Type 1 power headroom reports for the primary component carrier are provided first, and then Type 1 power headroom reports for each of the at least one secondary component carriers are arranged in an order according to the component carrier indices for the respective secondary component carriers, and wherein no specific component carrier identifier field is included for each of the Type 1 power headroom reports for each of the at least one secondary component carriers; and transmitting the MAC control element including the power headroom reports for the primary and secondary component carriers from the wireless terminal to the base station over one of the component carriers.