Method for sidelink relay communication under dual connectivity

A wireless communication method for use in a first wireless network node, the wireless communication method comprising:

• transmitting a secondary node request to a second wireless network node which connects to a first wireless terminal connecting the first wireless network node,
• receiving, from the second wireless network node, a secondary node bearer configuration of configuring the first wireless terminal to forward data traffic for a second wireless terminal,
• receiving, from the first wireless terminal, assistance information related to the second wireless terminal, wherein the assistance information includes a Uu RAT of the second wireless terminal, and
• transmitting, to the first wireless terminal, a configuration message of configuring the first wireless terminal to forward the data traffic for the second wireless terminal.

A first wireless terminal, comprising:

• at least one processor;
• and
• a memory, which is configured to store at least one program;
• wherein the at least one program, when executed by the at least one processor, enables the at least one processor to perform:
• transmitting, to a first wireless network node, assistance information related to a second wireless terminal, and
• receiving, from the first wireless network node, a configuration message of configuring the first wireless terminal to forward data traffic for the second wireless terminal,
• wherein the assistance information includes a Uu radio access technology (RAT) of the second wireless terminal.

A first wireless network node, comprising:

• at least one processor;
• and
• a memory, which is configured to store at least one program;
• wherein the at least one program, when executed by the at least one processor, enables the at least one processor to perform:
• transmitting a secondary node request to a second wireless network node which connects to a first wireless terminal connecting the first wireless network node,
• receiving, from the second wireless network node, a secondary node bearer configuration of configuring the first wireless terminal to forward data traffic for a second wireless terminal,
• receiving, from the first wireless terminal, assistance information related to the second wireless terminal, wherein the assistance information includes a Uu RAT of the second wireless terminal, and
• transmitting, to the first wireless terminal, a configuration message of configuring the first wireless terminal to forward the data traffic for the second wireless terminal.

A second wireless network node, comprising:

• at least one processor;
• and
• a memory, which is configured to store at least one program;
• wherein the at least one program, when executed by the at least one processor, enables the at least one processor to perform:
• receiving a secondary node request from a first wireless network node which connects to a first wireless terminal connecting the second wireless network node, and
• transmitting, to the first wireless network node, a secondary node bearer configuration of configuring the first wireless terminal to forward data traffic for a second wireless terminal.