SCHEDULING UPLINK TRANSMISSION OF A RELAY
Methods, systems, and devices for wireless communications are described. A first device (e.g., a relay user equipment (UE)) may establish a communication link, where the communication includes establishing a communication link between a second device (e.g., a remote UE) and a base station, the communication link including a first communication link between the second device and the first device and a second communication link between the first device and the base station. The first device may receive, over the first communication link, a transmission corresponding to data stored at the second device. The first device may receive, over the second communication link, an indication of one or more resources for a relay transmission corresponding to the data stored at the second device. The first device may transmit, over the second communication link, the relay transmission over the one or more resources based on receiving the sidelink transmission.
1 . (canceled)
2 . An apparatus for wireless communication at a relay UE, comprising:
one or more memories, and
one or more processors coupled to the one or more memories, the one or more processors configured to cause the relay UE to:
receive, over a first communication link between the relay UE and a remote UE, first data associated with the remote UE;
receive, over a second communication link between the relay UE and a network entity, an indication of one or more uplink resources to transmit a first transmission comprising the first data associated with the remote UE; and
transmit, over the second communication link and over the one or more uplink resources, the first transmission comprising the first data associated with the remote UE and comprising an identifier of the remote UE, wherein, for the first transmission, the first data is associated with a first radio link control entity of the second communication link that is distinct from a second radio link control entity of the second communication link, and wherein the first radio link control entity corresponds to the remote UE and the second radio link control entity corresponds to the relay UE.
3 . The apparatus of claim 2 , wherein the first transmission comprising the first data associated with the remote UE is multiplexed with at least one second transmission comprising second data associated with a second remote UE.
4 . The apparatus of claim 2 , wherein the first transmission further comprises a buffer status report corresponding to the first data associated with the remote UE.
5 . The apparatus of claim 4 , wherein the one or more processors are further configured to cause the relay UE to:
receive, from a second remote UE, a second transmission that comprises second data associated with the second remote UE, wherein the buffer status report comprises an aggregated buffer status of the remote UE and of the second remote UE based at least in part on receipt of the second data associated with the second remote UE.
6 . The apparatus of claim 5 , wherein the one or more processors are further configured to cause the relay UE to:
initiate a prohibit timer for the second remote UE, wherein the buffer status report excludes an identifier of the second remote UE based at least in part on the prohibit timer.
7 . The apparatus of claim 4 , wherein the one or more processors are further configured to cause the relay UE to:
receive, from a second remote UE, a second transmission that comprises second data associated with the second remote UE, wherein the buffer status report corresponds to the first data associated with the remote UE and the second data associated with the second remote UE.
8 . The apparatus of claim 7 , wherein the first data associated with the remote UE and the second data associated with the second remote UE are associated with a same logical channel group, and wherein the buffer status report comprises an indication of an aggregated size of the first data associated with the remote UE and the second data associated with the second remote UE.
9 . The apparatus of claim 2 , wherein the one or more processors are further configured to cause the relay UE to:
receive a configuration of a first logical channel group specific to the relay UE, the first logical channel group distinct from a second logical channel group specific to the remote UE.
10 . The apparatus of claim 2 , wherein the one or more processors are further configured to cause the relay UE to:
transmit, over the second communication link, a scheduling request based at least in part on receiving the first data, wherein reception of the indication of the one or more uplink resources is based at least in part on transmission of the scheduling request.
11 . An apparatus for wireless communication at a network entity, comprising:
one or more memories, and
one or more processors coupled to the one or more memories, the one or more processors configured to cause the network entity to:
output, over a communication link between the network entity and a relay UE, an indication of one or more uplink resources to transmit a first transmission comprising first data associated with a remote UE; and
obtain, over the communication link and over the one or more uplink resources, the first transmission comprising the first data associated with the remote UE and comprising an identifier of the remote UE, wherein, for the first transmission, the first data is associated with a first radio link control entity of the communication link that is distinct from a second radio link control entity of the communication link, and wherein the first radio link control entity corresponds to the remote UE and the second radio link control entity corresponds to the relay UE.
12 . The apparatus of claim 11 , wherein the first transmission comprising the first data associated with the remote UE is multiplexed with at least one second transmission comprising second data associated with a second remote UE.
13 . The apparatus of claim 11 , wherein the first transmission further comprises a buffer status report corresponding to the first data associated with the remote UE.
14 . The apparatus of claim 13 , wherein the buffer status report comprises an aggregated buffer status of the remote UE and of a second remote UE.
15 . The apparatus of claim 13 , wherein the buffer status report corresponds to the first data associated with the remote UE and second data associated with a second remote UE.
16 . The apparatus of claim 15 , wherein the first data associated with the remote UE and the second data associated with the second remote UE are associated with a same logical channel group, and wherein the buffer status report comprises an indication of an aggregated size of the first data associated with the remote UE and the second data associated with the second remote UE.
17 . The apparatus of claim 11 , wherein the one or more processors are further configured to cause the network entity to:
output a configuration of a first logical channel group specific to the relay UE, the first logical channel group distinct from a second logical channel group specific to the remote UE
18 . The apparatus of claim 11 , wherein the one or more processors are further configured to cause the network entity to:
obtain, over the communication link, a scheduling request, wherein the indication of the one or more uplink resources is based at least in part on the scheduling request.
19 . A method for wireless communication at a relay UE, comprising:
receiving, over a first communication link between the relay UE and a remote UE, first data associated with the remote UE;
receiving, over a second communication link between the relay UE and a network entity, an indication of one or more uplink resources to transmit a first transmission comprising the first data associated with the remote UE; and
transmitting, over the second communication link and over the one or more uplink resources, the first transmission comprising the first data associated with the remote UE and comprising an identifier of the remote UE, wherein, for the first transmission, the first data is associated with a first radio link control entity of the second communication link that is distinct from a second radio link control entity of the second communication link, and wherein the first radio link control entity corresponds to the remote UE and the second radio link control entity corresponds to the relay UE.
20 . The method of claim 19 , wherein the first transmission comprising the first data associated with the remote UE is multiplexed with at least one second transmission comprising second data associated with a second remote UE.
21 . The method of claim 19 , wherein the first transmission further comprises a buffer status report corresponding to the first data associated with the remote UE.