Multipath scheduling
Methods, apparatuses, and procedures for scheduling of multipath relays in wireless communications are disclosed. For example, a method implemented in a wireless transmit/receive unit (WTRU) includes determining that data to be transmitted has a priority greater than a priority threshold; determining timing information associated with a selected set of resources for transmitting the data, and the timing information indicates a time resource for transmitting the data is less than a time resource threshold; transmitting, to a network entity, a first message including information indicating a buffer status associated with the data and the timing information associated with the selected set of resources; and transmitting, to a relay WTRU on a sidelink transmission, a second message including information indicating the buffer status.
1 . A method implemented in a wireless transmit/receive unit (WTRU) for wireless communications, the method comprising:
determining that data to be transmitted has a priority greater than a priority threshold;
determining timing information associated with a selected set of resources for transmitting the data, wherein the timing information indicates a time resource for transmitting the data is less than a time resource threshold;
transmitting, to a network entity, a first transmission including information indicating 1) a buffer status associated with the data and 2) the timing information associated with the selected set of resources; and
transmitting, to a relay WTRU, a second transmission including information indicating the buffer status associated with the data.
2 . The method of claim 1 , wherein the buffer status is for mode 2 data transmission.
3 . The method of claim 1 , wherein the time resource for transmitting the data is a time remaining portion of a time window for resource selection.
4 . The method of claim 3 , wherein the time remaining portion is a remaining packet delay budget (PDB) for transmitting the data.
5 . The method of claim 3 , wherein the time remaining portion is a time difference between a packet delay budget (PDB) and the selected set of resources for transmitting the data.
6 . The method of claim 1 , wherein first transmission comprises any of: 1) a medium access control (MAC) control element (CE), a radio resource control (RRC) message, an uplink control transmission, a scheduling request, or a buffer status report.
7 . The method of claim 1 , wherein the selected set of resources comprises one or more mode 2 resources for transmitting the data.
8 . The method of claim 1 , further comprising:
selecting the set of resources for transmitting the data using mode 2 data transmission, wherein the set of resources is associated with a packet delay budget (PDB).
9 . The method of claim 1 , wherein the data to be transmitted is associated with one or more logical channels each having a priority greater than the priority threshold.
10 . The method of claim 1 , wherein the buffer status is associated with one or more logical channels each having a priority greater than the priority threshold.
11 . The method of claim 1 , wherein the second transmission is a sidelink transmission.
12 . The method of claim 1 , wherein the information included in the first transmission further indicates: 1) an amount of the data, and/or 2) the timing information associated with the selected set of resources for the network entity to schedule one or more uplink grants.
13 . The method of claim 1 , further comprising:
transmitting, to the network entity, a third transmission including information indicating: 1) A periodic resource selection for data transmission to the relay WTRU, and 2) a periodicity and an offset of the selected set of resources.
14 . A wireless transmit/receive unit (WTRU) for wireless communications, comprising circuitry, including a transmitter, a receiver,
a processor, and memory, the WTRU configured to:
determine that data to be transmitted has a priority greater than a priority threshold;
determine timing information associated with a selected set of resources for transmitting the data, wherein the timing information indicates a time resource for transmitting the data is less than a time resource threshold;
transmit, to a network entity, a first transmission including information indicating 1) a buffer status associated with the data and 2) the timing information associated with the selected set of resources; and
transmit, to a relay WTRU, a second transmission including information indicating the buffer status associated with the data.
15 . The WTRU of claim 14 , wherein the buffer status is for mode 2 data transmission.
16 . The WTRU of claim 14 , wherein the time resource for transmitting the data is a time remaining portion of a time window for resource selection.
17 . The WTRU of claim 16 , wherein the time remaining portion is a remaining packet delay budget (PDB) for transmitting the data.
18 . The WTRU of claim 16 , wherein the time remaining portion is a time difference between a packet delay budget (PDB) and the selected set of resources for transmitting the data.
19 . The WTRU of claim 14 , wherein the second transmission is a sidelink transmission.
20 . The WTRU of claim 14 , wherein the transmitter is further configured to:
transmit, to the network entity, a third transmission including information indicating: 1) a periodic resource selection for data transmission to the relay WTRU, and 2) a periodicity and an offset of the selected set of resources.