US 11,147,062 B2 · Dual connectivity power control for wireless network and wireless device

Abstract

A wireless device may receive message(s) comprising configuration parameters of cells grouped into a first cell group and a second cell group. One or more first grants for transmission in a first subframe on one or more first cells of the first cell group are received. The one or more first cells may comprise an LAA cell. One or more second grants for transmission in a second subframe on one or more second cells of the second cell group may be received. The first subframe may overlap the second subframe. The first subframe may lead the second subframe by a timing difference. In response to the timing difference being larger than a timing value, a power scaling rule may be applied to transmissions corresponding to the one or more second grants based on whether a listen before talk procedure indicates a clear channel for the LAA cell.

Claims31

Dependent claims

A method comprising:

receiving, by a wireless device, one or more messages comprising configuration parameters of a plurality of cells grouped into a first cell group and a second cell group;
receiving a first grant for transmission in a first uplink subframe via a licensed assisted access (LAA) cell of the first cell group;
receiving a second grant for transmission in a second uplink subframe via a second cell of the second cell group, wherein:
the first uplink subframe overlaps the second uplink subframe;
and
the first uplink subframe starts earlier than the second uplink subframe by a timing difference;
based on the timing difference satisfying a threshold and based on a listen before talk (LBT) procedure indicating a clear channel for the LAA cell of the first cell group, determining an adjusted transmission power for the transmission in the second uplink subframe via the second cell of the second cell group;
and
causing, using the adjusted transmission power, the transmission in the second uplink subframe.

6 more elements

A wireless device comprising:

one or more processors;
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages comprising configuration parameters of a plurality of cells grouped into a first cell group and a second cell group;
receive a first grant for transmission in a first uplink subframe via a licensed assisted access (LAA) cell of the first cell group;
receive a second grant for transmission in a second uplink subframe via a second cell of the second cell group, wherein:
the first uplink subframe overlaps the second uplink subframe;
and
the first uplink subframe starts earlier than the second uplink subframe by a timing difference;
and
based on the timing difference satisfying a threshold and based on a listen before talk (LBT) procedure indicating a clear channel for the LAA cell, determine an adjusted transmission power for the transmission in the second uplink subframe;
and
cause, using the adjusted transmission power, the transmission in the second uplink subframe.

9 more elements

Dependencies are inferred from the claim text.

Dual connectivity power control for wireless network and wireless device

Life of this patent

Dual connectivity power control for wireless network and wireless device

Life of this patent

Abstract

Claims31