Sidelink and UU link buffer status report

A method of wireless communication performed by a network node, comprising:

• determining a configuration providing an indication that a joint buffer status report (BSR) is to be used for buffer status reporting for a sidelink between a first user equipment (UE) and a second UE and a link between the first UE and the network node;
• providing the configuration to the first UE;
• and
• receiving the joint BSR after providing the configuration,
• wherein the joint BSR includes buffer reporting information for one or more logical channels on the sidelink between the first UE and the second UE and buffer reporting information for one or more logical channels on the link between the first UE and the network node, and
• wherein the joint BSR includes a field indicating an entry of the joint BSR that includes the buffer reporting information for the one or more logical channels on the sidelink.

A first user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• receive a configuration providing an indication that a joint buffer status report (BSR) is to be used for buffer status reporting for a sidelink between the first UE and a second UE and a link between the first UE and a network node;
• generate the joint BSR based at least in part on the configuration,
• wherein the joint BSR includes buffer reporting information for one or more logical channels on the sidelink between the first UE and the second UE and buffer reporting information for one or more logical channels on the link between the first UE and the network node;
• and
• transmit the joint BSR to the network node,
• wherein the joint BSR includes a field indicating an entry of the joint BSR that includes the buffer reporting information for the one or more logical channels on the sidelink.

A network node for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• determine a configuration providing an indication that a joint buffer status report (BSR) is to be used for buffer status reporting for a sidelink between a first user equipment (UE) and a second UE and a link between the first UE and the network node;
• provide the configuration to the first UE;
• and
• receive the joint BSR after providing the configuration,
• wherein the joint BSR includes buffer reporting information for one or more logical channels on the sidelink between the first UE and the second UE and buffer reporting information for one or more logical channels on the link between the first UE and the network node, and
• wherein the joint BSR includes a field indicating an entry of the joint BSR that includes the buffer reporting information for the one or more logical channels on the sidelink.