Multiconnectivity for joint user equipment relaying

A method for wireless communication at a base station, comprising:

• establishing a first access connection with a first user equipment (UE) and a second access connection with a second UE;
• transmitting, to the first UE via the first access connection, configuration information for a first relay connection and a second relay connection, the first relay connection between the first UE and the base station, the first relay connection via the second UE using a sidelink connection between the first UE and the second UE and the second access connection between the base station and the second UE, and the second relay connection between the base station and the second UE via the first UE using the sidelink connection and the first access connection;
• transmitting, in a control message to the first UE, an indication that the first UE is to activate the first relay connection;
• receiving, based at least in part on the indication in the control message, one or more data messages from the first UE via the second UE on the first relay connection;
• and
• receiving, based at least in part on the indication in the control message, one or more data messages from the second UE via the first UE on the second relay connection.

An apparatus for wireless communication at a first user equipment (UE), comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• establish a first access connection with a base station and a sidelink connection with a second UE;
• receive, from the base station via the first access connection, configuration information for a first relay connection and a second relay connection, the first relay connection between the first UE and the base station via the second UE using the sidelink connection, and the second relay connection between the base station and the second UE via the first UE using the sidelink connection and the first access connection;
• receive, in a control message from the base station, an indication that the first UE is to activate the first relay connection and the second relay connection;
• transmit, based at least in part on the indication in the control message, one or more data messages to the base station on the first relay connection according to the received configuration information for the first relay connection;
• receive one or more data messages from the second UE on the sidelink connection according to the second relay connection;
• and
• transmit the one or more data messages from the second UE to the base station on the first connection according to the second relay connection.

An apparatus for wireless communication at a base station, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• establish a first access connection with a first user equipment (UE) and a second access connection with a second UE;
• transmit, to the first UE via the first access connection, configuration information for a first relay connection and a second relay connection, the first relay connection between the first UE and the base station, the first relay connection via the second UE using a sidelink connection between the first UE and the second UE and the second access connection between the base station and the second UE, and the second relay connection between the base station and the second UE via the first UE using the sidelink connection and the first access connection;
• transmit, in a control message to the first UE, an indication that the first UE is to activate the first relay connection;
• receive, based at least in part on the indication in the control message, one or more data messages from the first UE via the second UE on the first relay connection;
• and
• receive, based at least in part on the indication in the control message, one or more data messages from the second UE via the first UE on the second relay connection.