CPC H04L 27/2613 (2013.01) [H04L 5/0048 (2013.01); H04W 52/325 (2013.01)] | 20 Claims |
1. A method for use by a wireless transmit/receive unit (WTRU), the method comprising:
receiving sounding reference signal (SRS) configuration information, wherein the SRS configuration information indicates a plurality of SRS configurations;
determining a power headroom value associated with a first SRS transmission, wherein the power headroom value indicates whether the first SRS transmission would exceed a maximum power before a power adjustment is performed;
transmitting the power headroom value to a network in a medium access control (MAC) control element (CE);
receiving power control information from the network regarding a second SRS transmission subsequent to transmitting the power headroom value;
adjusting power for transmitting the second SRS transmission based on the received power control information; and
transmitting the second SRS transmission using the adjusted power.
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