Patent 9215051 was granted and assigned to Ofinno Technologies on December, 2015 by the United States Patent and Trademark Office.
A wireless device transmits one of the sounding reference signals (SRSs) on a first cell in a first cell group in parallel with transmission a first random access preamble. The wireless device drops transmission of a first SRS if the first SRS transmission and a second random access preamble transmission coincide in the same subframe and the wireless device has insufficient power to transmit the first SRS in parallel with the second random access preamble.