Configuring demodulation reference signal bundling and transport block scheduling
Apparatuses, methods, and systems are disclosed for configuring demodulation reference signal bundling and transport block scheduling. One method includes receiving a first configuration from a network. The first configuration includes: a first indication to enable demodulation reference signal (DM-RS) bundling for a physical channel; a second indication of a duration for a time-domain window (TDW) length for DM-RS bundling, wherein the duration of the TDW indicates a number of symbols across which joint channel estimation is performed; or a combination thereof. The method includes receiving a second configuration from the network. The second configuration includes: a third indication to enable a single transport block (TB) scheduling across multiple transmission occasion for a physical channel; and a fourth indication of a number of transmission occasion over which a single transport block is transmitted, received, or a combination thereof.
1 . A method performed by a user equipment (UE), the method comprising:
receiving a first configuration from a network, wherein the first configuration comprises:
a first indication to enable demodulation reference signal (DM-RS) bundling for a physical channel;
a second indication of a duration for a time-domain window (TDW) length for DM-RS bundling, wherein the duration of the TDW indicates a number of symbols across which joint channel estimation is performed;
or a combination thereof; and
receiving a second configuration from the network, wherein the second configuration comprises:
a third indication to enable a single transport block (TB) scheduling across multiple transmission occasion for a physical channel; and
a fourth indication of a number of transmission occasion over which a single transport block is transmitted, received, or a combination thereof.
2 . 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:
receive a first configuration from a network, wherein the first configuration comprises:
a first indication to enable demodulation reference signal (DM-RS) bundling for a physical channel;
a second indication of a duration for a time-domain window (TDW) length for DM-RS bundling, wherein the duration of the TDW indicates a number of symbols across which joint channel estimation is performed;
or a combination thereof; and
receive a second configuration from the network, wherein the second configuration comprises:
a third indication to enable a single transport block (TB) scheduling across multiple transmission occasion for a physical channel; and
a fourth indication of a number of transmission occasion over which a single transport block is transmitted, received, or a combination thereof.
3 . The UE of claim 2 , wherein the physical channel is a physical uplink shared channel (PUSCH).
4 . The UE of claim 2 , wherein the physical channel is a physical uplink control channel (PUCCH).
5 . The UE of claim 2 , wherein, if the TDW duration is not configured, then the TDW duration is implicitly determined.
6 . The UE of claim 5 , wherein the TDW duration is determined based on a number of contiguous time-domain symbols across multiple transmission occasions.
7 . The UE of claim 2 , wherein, if frequency hopping is enabled, then the TDW duration is not greater than the frequency hopping duration.
8 . The UE of claim 2 , wherein the DM-RS bundle duration comprises at least two durations for a multiple number of transmission occasions.
9 . The UE of claim 8 , wherein a first duration of the at least two durations is applied to all the transmission occasions except a last transmission occasion, and a second duration of the at least two durations is applied to only the last transmission occasion.
10 . The UE of claim 2 , wherein one transmission occasion corresponds to one slot duration.
11 . The UE of claim 2 , wherein the number of transmission occasions across which the single TB is transmitted is indicated by a time-domain resource allocation (TDRA) table.
12 . The UE of claim 2 , wherein the third indication to enable the single TB transmission across multiple transmission occasions is determined by a time-domain resource allocation (TDRA) table, and if the number of transmission occasions across which the single TB is transmitted is not configured in the TDRA table or if the number of number of transmission occasions across which the single TB is transmitted is configured and the number is equal to one, then the single TB transmission across multiple transmission occasions is not enabled.
13 . A base station, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the base station to:
transmit a first configuration, wherein the first configuration comprises:
a first indication to enable demodulation reference signal (DM-RS) bundling for a physical channel;
a second indication of a duration for a time-domain window (TDW) length for DM-RS bundling, wherein the duration of the TDW indicates a number of symbols across which joint channel estimation is performed;
or a combination thereof; and
transmit a second configuration, wherein the second configuration comprises:
a third indication to enable a single transport block (TB) scheduling across multiple transmission occasion for a physical channel; and
a fourth indication of a number of transmission occasion over which a single transport block is transmitted, received, or a combination thereof.
14 . The base station of claim 13 , wherein the physical channel is a physical uplink shared channel (PUSCH).
15 . The base station of claim 13 , wherein the physical channel is a physical uplink control channel (PUCCH).
16 . A processor for wireless communication, comprising:
at least one controller coupled with at least one memory and configured to cause the processor to:
receive a first configuration from a network, wherein the first configuration comprises:
a first indication to enable demodulation reference signal (DM-RS) bundling for a physical channel;
a second indication of a duration for a time-domain window (TDW) length for DM-RS bundling, wherein the duration of the TDW indicates a number of symbols across which joint channel estimation is performed;
or a combination thereof; and
receive a second configuration from the network, wherein the second configuration comprises:
a third indication to enable a single transport block (TB) scheduling across multiple transmission occasion for a physical channel; and
a fourth indication of a number of transmission occasion over which a single transport block is transmitted, received, or a combination thereof.
17 . The processor of claim 16 , wherein the physical channel is a physical uplink shared channel (PUSCH).
18 . The processor of claim 16 , wherein the physical channel is a physical uplink control channel (PUCCH).
19 . The processor of claim 16 , wherein, if the TDW duration is not configured, then the TDW duration is implicitly determined.
20 . The processor of claim 19 , wherein the TDW duration is determined based on a number of contiguous time-domain symbols across multiple transmission occasions.