Beam indication for full duplex
Methods and apparatuses for beam indication for full duplex. A method of operating a user equipment (UE) includes receiving first and second information that includes first and second transmission configuration indicator (TCI) state configurations associated with first and second subsets of slots or symbols, respectively, on a cell and receiving a downlink control information (DCI) format that includes a first or second TCI state code point from the first or second TCI state configuration. The method further includes determining, based on whether a slot or symbol is from the first or second subset, the first or second TCI state code point and receiving, based on the determination, a shared data or control channel or signal using the first or second TCI state code point. The first subset does not include time-domain resources indicated for simultaneous transmission and reception on the cell and the second subset does.
1 . A user equipment (UE) comprising:
a transceiver configured to receive:
first information that includes a first transmission configuration indicator (TCI) state configuration associated with a first subset of slots or symbols from a set of slots or symbols on a cell,
second information that includes a second TCI state configuration associated with a second subset of slots or symbols from the set of slots or symbols on the cell, and
a downlink control information (DCI) format that includes a first TCI state code point from the first TCI state configuration or a second TCI state code point from the second TCI state configuration; and
a processor operably coupled to the transceiver, the processor configured to determine, based on whether a slot or symbol is from the first subset of slots or symbols or the second subset of slots or symbols, the first TCI state code point or the second TCI state code point,
wherein the transceiver is further configured to:
receive, based on the determination that the slot or symbol is from the first subset of slots or symbols, a shared data or control channel or signal using the first TCI state code point, and
receive, based on the determination that the slot or symbol is from the second subset of slots or symbols, the shared data or control channel or signal using the second TCI state code point,
wherein the first subset of slots or symbols does not include time-domain resources indicated for simultaneous transmission and reception on the cell, and
wherein the second subset of slots or symbols includes time-domain resources indicated for simultaneous transmission and reception on the cell.
2 . The UE of claim 1 , wherein the first TCI state code point and the second TCI state code point include:
a downlink (DL) TCI state,
an uplink (UL) TCI state,
a joint TCI state, or
a pair of DL and UL TCI states.
3 . The UE of claim 1 , wherein:
a TCI state includes a source reference signal for quasi-colocation or a source reference signal for spatial information,
if the TCI state is associated with the first TCI state code point, the source reference signal is transmitted in the first subset of slots or symbols, and
if the TCI state is associated with the second TCI state code point, the source reference signal is transmitted the second subset of slots or symbols.
4 . The UE of claim 1 , wherein:
the DCI format includes a field, and
the field indicates a presence of:
the first TCI state code point, or
the second TCI state code point.
5 . The UE of claim 1 , wherein:
the transceiver is further configured to receive a physical uplink shared channel (PUSCH) repetition Type A configuration,
the processor is further configured to determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
the transceiver is further configured to skip a transmission of the PUSCH repetition instance in the second subset.
6 . The UE of claim 1 , wherein:
the transceiver is further configured to receive a physical uplink shared channel (PUSCH) repetition Type A configuration,
the processor is further configured to determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
the transceiver is further configured to:
transmit the PUSCH repetition instance in the second subset, and
rate match around non-uplink (UL) resource elements.
7 . The UE of claim 1 , wherein:
the transceiver is further configured to receive:
a physical uplink shared channel (PUSCH) repetition Type A configuration, and
a threshold for a minimum number of resource elements;
the processor is further configured to:
determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
determine if a number of available uplink (UL) resources exceeds the threshold; and
the transceiver is further configured to transmit, based on the determination that the number of available UL resource exceeds the threshold, the PUSCH repetition instance in the second subset.
8 . A base station (BS) comprising:
a transceiver configured to transmit:
first information that includes a first transmission configuration indicator (TCI) state configuration associated with a first subset of slots or symbols from a set of slots or symbols on a cell,
second information that includes a second TCI state configuration associated with a second subset of slots or symbols from the set of slots or symbols on the cell, and
a downlink control information (DCI) format that includes a first TCI state code point from the first TCI state configuration or a second TCI state code point from the second TCI state configuration; and
a processor operably coupled to the transceiver, the processor configured to determine, based on whether a slot or symbol is from the first subset of slots or symbols or the second subset of slots or symbols, the first TCI state code point or the second TCI state code point,
wherein the transceiver is further configured to:
transmit, based on the determination that the slot or symbol is from the first subset of slots or symbols, a shared data or control channel or signal using the first TCI state code point, and
transmit, based on the determination that the slot or symbol is from the second subset of slots or symbols, the shared data or control channel or signal using the second TCI state code point,
wherein the first subset of slots or symbols does not include time-domain resources indicated for simultaneous transmission and reception on the cell, and
wherein the second subset of slots or symbols includes time-domain resources indicated for simultaneous transmission and reception on the cell.
9 . The BS of claim 8 , wherein the first TCI state code point and the second TCI state code point include:
a downlink (DL) TCI state,
an uplink (UL) TCI state,
a joint TCI state, or
a pair of DL and UL TCI states.
10 . The BS of claim 8 , wherein:
a TCI state includes a source reference signal for quasi-colocation or a source reference signal for spatial information,
if the TCI state is associated with the first TCI state code point, the source reference signal is transmitted in the first subset of slots or symbols, and
if the TCI state is associated with the second TCI state code point, the source reference signal is transmitted the second subset of slots or symbols.
11 . The BS of claim 8 , wherein:
the DCI format includes a field, and
the field indicates a presence of:
the first TCI state code point, or
the second TCI state code point.
12 . The BS of claim 8 , wherein:
the transceiver is further configured to transmit a physical uplink shared channel (PUSCH) repetition Type A configuration,
the processor is further configured to determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
the transceiver is further configured to skip a reception of the PUSCH repetition instance in the second subset.
13 . The BS of claim 8 , wherein:
the transceiver is further configured to transmit a physical uplink shared channel (PUSCH) repetition Type A configuration,
the processor is further configured to determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
the transceiver is further configured to:
receive the PUSCH repetition instance in the second subset, and
rate match around non-uplink (UL) resource elements.
14 . The BS of claim 8 , wherein:
the transceiver is further configured to transmit:
a physical uplink shared channel (PUSCH) repetition Type A configuration, and
a threshold for minimum number of resource elements;
the processor is further configured to:
determine if a slot or symbol for a PUSCH repetition instance is in the second subset, and
determine if a number of available uplink (UL) resources exceeds the threshold; and
the transceiver is further configured to receive, based on the determination that the number of available UL resource exceeds the threshold, the PUSCH repetition instance in the second subset.
15 . A method of operating a user equipment (UE), the method comprising:
receiving first information that includes a first transmission configuration indicator (TCI) state configuration associated with a first subset of slots or symbols from a set of slots or symbols on a cell;
receiving second information that includes a second TCI state configuration associated with a second subset of slots or symbols from the set of slots or symbols on the cell;
receiving a downlink control information (DCI) format that includes a first TCI state code point from the first TCI state configuration or a second TCI state code point from the second TCI state configuration;
determining, based on whether a slot or symbol is from the first subset of slots or symbols or the second subset of slots or symbols, the first TCI state code point or the second TCI state code point; and
one of:
receiving, based on the determination that the slot or symbol is from the first subset of slots or symbols, a shared data or control channel or signal using the first TCI state code point; or
receiving, based on the determination that the slot or symbol is from the second subset of slots or symbols, the shared data or control channel or signal using the second TCI state code point,
wherein the first subset of slots or symbols does not include time-domain resources indicated for simultaneous transmission and reception on the cell, and
wherein the second subset of slots or symbols includes time-domain resources indicated for simultaneous transmission and reception on the cell.
16 . The method of claim 15 , wherein:
the first TCI state code point and the second TCI state code point include:
a downlink (DL) TCI state,
an uplink (UL) TCI state,
a joint TCI state, or
a pair of DL TCI state and UL TCI state;
a TCI state includes a source reference signal for quasi-colocation or a source reference signal for spatial information;
if the TCI state is associated with the first TCI state code point, the source reference signal is transmitted in the first subset of slots or symbols; and
if the TCI state is associated with the second TCI state code point, the source reference signal is transmitted the second subset of slots or symbols.
17 . The method of claim 15 , wherein:
the DCI format includes a field, and
the field indicates a presence of:
the first TCI state code point, or
the second TCI state code point.
18 . The method of claim 15 , further comprising:
receiving a physical uplink shared channel (PUSCH) repetition Type A configuration;
determining if a slot or symbol for a PUSCH repetition instance is in the second subset; and
skipping a transmission of the PUSCH repetition instance in the second subset.
19 . The method of claim 15 , further comprising:
receiving a physical uplink shared channel (PUSCH) repetition Type A configuration;
determining if a slot or symbol for a PUSCH repetition instance is in the second subset;
transmitting the PUSCH repetition instance in the second subset; and
rate matching around non-uplink (UL) resource elements.
20 . The method of claim 15 , further comprising:
receiving a physical uplink shared channel (PUSCH) repetition Type A configuration;
receiving a threshold for minimum number of resource elements;
determining if a slot or symbol for a PUSCH repetition instance is in the second subset;
determining if a number of available uplink (UL) resource exceeds the threshold; and
transmitting, based on the determination that the number of available UL resource exceeds the threshold, the PUSCH repetition instance in the second subset.