(57) ABSTRACT A wireless device transmits a first signal in a first cell group and transmits a
second signal in a second cell group. The wireless device adjusts a signal transmission …

(57) ABSTRACT A wireless device receives message (s) configuring cell groups and
transmissions of Sounding reference signals (SRSs). Uplink transmission timing in a first cell …

This application is a continuation-in-part of, and claims priority under 35 USC S 120 from
nonprovisional US patent application Ser. No. 13/134,811, entitled “Sounding Mechanism …

A method for resource allocation. The method includes signaling a set of SRS subframes in
which an SRS can be transmitted, wherein a UE not capable of aperiodic SRS transmission …

A first signal is transmitted starting in a first subframe of a cell of a first cell group. A second
signal is configured for transmission in a second subframe of a second cell group …

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 …

Primary Examiner-Kibrom T Hailu (74) Attorney, Agent, or Firm—Banner & Witcoff, Ltd.(57)
ABSTRACT A wireless device transmits a random access preamble (RAP) on a first cell of a …

(57) ABSTRACT A plurality of cells are grouped into a primary cell group and a secondary
cell group. The wireless device receives a timing advance command comprising a time …

A communication method for sounding reference signal transmission is provided. A
communication method of a user equipment in a mobile communication system in which a …

A communication apparatus and a communication method capable of suppressing an
increase of bits used for a request to send a reference signal and flexibly setting a resource …