The invention relates to a method comprising classifying user equipment (UE) cells, to which
carrier aggregation is applied, into a plurality of time advance groups. Uplink-time synchro …

Method and apparatus for controlling connectivity to a network for intermittent data services
are disclosed. A new dormant mode is defined such that a wireless transmit/receive unit …

BACKGROUND 0002 Modern wireless telecommunication systems aim to provide efficient
utilization of the available frequency spec trum So as to maximize capacity and throughput …

(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 …

2019-04-02 Assigned to QUALCOMM INCORPORATED reassignment QUALCOMM
INCORPORATED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR …

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 …

Technology for configuring, activating and deactivating com ponent carriers in carrier
aggregation is disclosed. One method comprises configuring a Primary Component Carrier …

(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 method and an apparatus for activating and deactivating secondary cells in a carrier
aggregation environment are provided. In one embodiment, a Medium Access Control …

BACKGROUND With the rapid rise in demand for communication of large amounts of data to
and from mobile communication devices, traditional mobile Voice communication networks …