Device, system and method for handover with simultaneous UE transmission beams

A user equipment (UE), comprising:

• a plurality of antenna panels, each antenna panel comprising a plurality of antenna elements;
• a processor configured to determine to transmit a first transmission (Tx) stream and a second Tx stream simultaneously to a first next generation NodeB (gNB) and a second gNB for handing over communication with the UE from a first cell to a second cell, wherein the first gNB is a serving gNB in the first cell and the second gNB is a handover target gNB in the second cell;
• and
• a transceiver configured to simultaneously transmit via a same antenna panel of the UE the first transmission stream to the first gNB using a first TX polarization and the second transmission stream to the second gNB using a second TX polarization different from the first Tx polarization.

A method, comprising:

• at a first next generation NodeB (gNB) in a first cell for communicating with a user equipment (UE) in a wireless network including the UE and a second gNB in a second cell for communicating with the UE:
• allocating a Downlink Control Information (DCI) format 0_1 for triggering a Physical Uplink Shared Channel (PUSCH) transmission by the UE;
• triggering the PUSCH transmission by the UE;
• receiving a transmission (Tx) stream from the UE, wherein the Tx stream is a first transmission (Tx) stream using a first polarization or a second Tx stream using a second polarization simultaneously sent to the first gNB and the second gNB within a same antenna panel of the UE;
• and
• restricting an uplink (UL) channel scheduling by triggering the PUSCH transmission with a single port.