| 主权项 |
1. A power headroom reporting (PHR) processing method in a carrier aggregation system, comprising:
acquiring, at user equipment, a pathloss change corresponding to an uplink carrier which is in an activation state at present; determining, by said user equipment based on said pathloss change, whether a PHR is to be triggered or not; acquiring power headroom (PH) information to be reported and reporting said PH information, by said user equipment, if said user equipment determines that said PHR is to be triggered; wherein a prohibitPHR-Timer and a periodicPHR-Timer are maintained per user equipment, and said determining, by said user equipment based on said pathloss change, whether a PHR is to be triggered or not comprises: determining, by said user equipment based on said pathloss change, whether preset trigger conditions are met, if said user equipment has a new uplink grant (UL Grant) on an uplink carrier, wherein the preset trigger conditions comprise:
said prohibitPHR-Timer times out, and a pathloss change of at least one uplink carrier in said activation state from the most recent PHR exceeds a preset threshold;said periodicPHR-Timer times out; anda PHR function is configured or reconfigured; and triggering said PHR if one or several of the preset trigger conditions are met; otherwise, not triggering said PHR; and wherein said acquiring PH information to be reported and reporting said PH information, by said user equipment comprises: acquiring, by said user equipment, PH information of all uplink carriers in said activation state and making, by said user equipment, said PH information to be carried in a PHR media access control control element (MAC CE) and reported to a network side. |
