Methods And Apparatuses For Multi-Radio Access Technology Spectrum Sharing In Mobile Communications

An apparatus, utilizing a first radio access technology (RAT), comprising:

• a transceiver which, during operation, wirelessly communicates with one or more network nodes;
• and
• a processor communicatively coupled to the transceiver such that, during operation, the processor performs operations comprising:
• transmitting, via the transceiver, user equipment (UE) capability information to a first network node of the first RAT, wherein the UE capability information indicates that the apparatus supports multi-RAT spectrum sharing (MRSS);
• receiving, via the transceiver, a signaling from the first network node, wherein the signaling indicates the apparatus to provide channel information for MRSS;
• and
• performing, via the transceiver, at least one of the following based on the signaling:
• transmitting a measurement report of a channel state information-reference signal (CSI-RS) of a second RAT to the first network node;
• and
• transmitting a sounding reference signal (SRS) or a physical random access channel (PRACH) to a second network node of the second RAT.

A method, comprising:

• receiving, by a processor of a first network node utilizing a first radio access technology (RAT), user equipment (UE) capability information from an apparatus of the first RAT, wherein the UE capability information indicates that the apparatus supports multi-RAT spectrum sharing (MRSS);
• transmitting, by the processor, a signaling to the apparatus based on the UE capability information, wherein the signaling indicates the apparatus to provide channel information for MRSS;
• and
• performing, by the processor, at least one of the following based on the signaling:
• receiving a measurement report of a channel state information-reference signal (CSI-RS) of a second RAT from the apparatus;
• and
• receiving, from a second network node of the second RAT, a measurement result of a sounding reference signal (SRS) or a physical random access channel (PRACH) transmitted from the apparatus to the second network node.