Transmitting a prioritized transport block
Apparatuses, methods, and systems are disclosed for transmitting a prioritized transport block. One method includes determining, at a user equipment, a first priority corresponding to a first transport block associated with a first hybrid automatic repeat request process pending for retransmission on a configured uplink grant resource. The method includes determining a second priority corresponding to an initial transmission on the configured uplink grant resource of a second transport block associated with a second hybrid automatic repeat request process. The method includes selecting the second hybrid automatic repeat request process and transmitting the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block.
1 . A method of a user equipment (UE), the method comprising:
determining a first priority of a first hybrid automatic repeat request (HARQ) process associated with a first transport block pending for retransmission on a configured uplink grant resource, wherein the first priority is a first logical channel priority;
determining a second priority for a second HARQ process corresponding to an initial transmission of a second transport block on the configured uplink grant resource, wherein the second priority is a second logical channel priority and wherein determining the second priority comprises determining a transmission urgency of the second transport block based on one or more UE-side transmission conditions associated with a configured uplink grant; and
selecting the second HARQ process corresponding to the initial transmission of the second transport block over the first HARQ process associated with the first transport block pending for retransmission based on the second logical channel priority.
2 . The method of claim 1 , wherein selecting the second HARQ process and transmitting the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block associated with the first HARQ process comprises transmitting the initial transmission of the second transport block before retransmitting the first transport block in response to the second priority being higher than the first priority.
3 . The method of claim 1 , further comprising receiving configuration information indicating to select a higher priority HARQ process and transmitting a new transmission before transmitting a lower priority retransmission.
4 . The method of claim 1 , further comprising, in response to the first HARQ process and the second HARQ process configured to use the configured grant resource, receiving configuration information indicating to select the first HARQ process and transmit the retransmission of the first transport block regardless of the first priority and the second priority.
5 . The method of claim 1 , further comprising restarting a timer associated with the configured grant uplink resource in response to transmitting the initial transmission of the second transport block before retransmitting the first transport block.
6 . The method of claim 1 , wherein, after transmitting the initial transmission of the second transport block, the first HARQ process associated with data corresponding to the first transport block is considered as pending.
7 . The method of claim 1 , further comprising, after transmitting the initial transmission of the second transport block, retransmitting the first transport block associated with the first HARQ process on next available configured uplink grant resources associated with the first HARQ process.
8 . The method of claim 1 , wherein second data corresponding to the second transport block is received after first data corresponding to the first transport block.
9 . A user equipment (UE), comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
determine a first priority of a first hybrid automatic repeat request (HARQ) process associated with a first transport block pending for retransmission on a configured uplink grant resource, wherein the first priority is a first logical channel priority;
determine a second priority for a second HARQ process corresponding to an initial transmission of a second transport block on the configured uplink grant resource, wherein the second priority is a second logical channel priority and wherein determining the second priority comprises determining a transmission urgency of the second transport block based on one or more UE-side transmission conditions associated with a configured uplink grant; and
select the second HARQ process corresponding to the initial transmission of the second transport block over the first HARQ process associated with the first transport block pending for retransmission based on the second logical channel priority.
10 . The UE of claim 9 , wherein the at least one processor is configured to cause the UE to transmit the initial transmission of the second transport block before retransmitting the first transport block in response to the second priority being higher than the first priority.
11 . The UE of claim 9 , wherein the at least one processor is configured to cause the UE to receive configuration information indicating to transmit a higher priority new transmission before transmitting a lower priority retransmission.
12 . The UE of claim 9 , wherein the at least one processor is configured to cause the UE to, in response to the first HARQ process and the second HARQ process configured to use the configured grant resource, receive configuration information indicating to select the first HARQ process, and transmit the retransmission of the first transport block regardless of the first priority and the second priority.
13 . The UE of claim 9 , wherein, after transmitting the initial transmission of the second transport block, the first HARQ process associated with data corresponding to the first transport block is considered as pending.
14 . The UE of claim 9 , wherein, after transmitting the initial transmission of the second transport block, the at least one processor is configured to cause the UE to retransmit the first transport block associated with the first HARQ process on next available configured uplink grant resources associated with the first HARQ process.
15 . The UE of claim 9 , wherein second data corresponding to the second transport block is received after first data corresponding to the first transport block.
16 . The method of claim 1 , further comprising transmitting the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block.
17 . The method of claim 1 , wherein the first priority and the second priority are determined by a priority of corresponding logical channels.
18 . The method of claim 1 , wherein transmitting the initial transmission of the second transport block before retransmitting the first transport block comprises transmitting the initial transmission of the second transport block in a configured grant uplink resource.
19 . The UE of claim 9 , wherein the at least one processor is configured to cause the UE to transmit the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block.
20 . The UE of claim 9 , wherein the first priority and the second priority are determined by a priority of corresponding logical channels.