Method for performing power headroom reporting procedure and PHR MAC control element
AssigneeSunplus Technology Co., Ltd.
InventorsYuanyuan Zhang, Tsung-Liang Lu
Life of this patent
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Abstract
This invention relates to a method for performing Power Headroom reporting procedure, adapted for a user equipment, wherein the user equipment is operated in a plurality of activated serving cells, the method includes the steps of: providing a prohibitPHR-Timer; obtaining a plurality of downlink path loss values respectively corresponding to the activated serving cells; triggering a power headroom report when the prohibitPHR-Timer expires or has expired and at least one of the downlink path loss values has changed more than a PathlossChange threshold since the last transmission of a PHR; and reporting the power headroom report.
Claims19
A method for performing Power Headroom reporting procedure, adapted for a user equipment, wherein the user equipment is operated in a plurality of serving cells, the method comprising:
- providing a prohibitPHR-Timer;
- determining whether the user equipment has uplink resources for new transmission;
- and
- when the user equipment has uplink resources for new transmission, the method further comprising:
- triggering a power headroom report when the prohibitPHR-Timer expires or has expired and at least one of a plurality of downlink path loss values has changed more than a PathlossChange threshold since the last transmission of a previous power headroom report, wherein the downlink path loss values respectively corresponds to the serving cells;
- and
- reporting the power headroom report.
Dependencies are inferred from the claim text.