Disallowed communication direction for full-duplex time intervals
Various aspects of the present disclosure generally relate to wireless communication. Some aspects relate to a disallowed communication direction for full-duplex time intervals. Some aspects more specifically relate to defining, for a user equipment (UE), an allowable communication direction and/or a disallowed communication direction for full-duplex time intervals (for example, for slots and/or symbols associated with full-duplex operations). In some aspects, a network node transmitting, to a UE, an indication of a communication direction that is disabled or is to be dropped (for example, not received or transmitted) during slots or symbols that are associated with full-duplex operations at the network node. The UE may transmit or receive communications, during a full-duplex time interval, that are in an allowed communication direction (for example, that are not in the disallowed communication direction).
1 . A user equipment (UE) for wireless communication, comprising:
at least one memory; and
at least one processor communicatively coupled with the at least one memory, the at least one processor operable to cause the UE to:
receive, from a network node, an indication of a disallowed communication direction associated with one or more full-duplex time intervals, wherein one or more resource occasions that correspond to the one or more full-duplex time intervals are excluded from a Type- 1 hybrid automatic repeat request (HARQ) codebook; and
transmit or receive, to or from the network node and during a full-duplex time interval of the one or more full-duplex time intervals, a communication in accordance with the communication being in a communication direction that is not the disallowed communication direction.
2 . The UE of claim 1 , wherein the indication of the disallowed communication direction is associated with either uplink signals and channels or downlink signals and channels being disallowed for the one or more full-duplex time intervals.
3 . The UE of claim 1 , wherein the at least one processor is further operable to cause the UE to:
drop, during the full-duplex time interval or an other full-duplex time interval of the one or more full-duplex time intervals, an other communication in accordance with the other communication being in the disallowed communication direction.
4 . The UE of claim 3 , wherein the other communication is a downlink communication, wherein the at least one processor is further operable to cause the UE to:
refrain from transmitting a HARQ feedback indication associated with the downlink communication.
5 . The UE of claim 4 , wherein, to cause the UE to refrain from transmitting the HARQ feedback indication associated with the downlink communication, the at least one processor is operable to cause the UE to:
transmit the Type-1 HARQ codebook.
6 . The UE of claim 5 , wherein the disallowed communication direction is disallowed for a control resource set (CORESET) pool index value, and wherein the Type-1 HARQ codebook is associated with the CORESET pool index value.
7 . The UE of claim 3 , wherein the other communication is a downlink communication, wherein the at least one processor is further operable to cause the UE to:
transmit a negative acknowledgement (NACK) indication for the downlink communication.
8 . The UE of claim 1 , wherein the indication of the disallowed communication direction is communicated via radio resource control signaling or medium access control (MAC) control element signaling.
9 . The UE of claim 1 , wherein the indication of the disallowed communication direction comprises an indication that the disallowed communication direction is disallowed, during the one or more full-duplex time intervals, for communications associated with a control resource set (CORESET) pool index value.
10 . The UE of claim 1 , wherein the indication of the disallowed communication direction comprises an indication of a first disallowed communication direction for communications associated with a first control resource set (CORESET) pool index value and an indication of a second disallowed communication direction for communications associated with a second CORESET pool index value.
11 . The UE of claim 1 , wherein the indication of the disallowed communication direction comprises an indication of a transmission configuration indicator (TCI) state associated with a full-duplex operating state and the disallowed communication direction, the TCI state indicating that the disallowed communication direction is disallowed for the one or more full-duplex time intervals.
12 . The UE of claim 11 , wherein the indication of the TCI state indicates that the TCI state is associated with a control resource set (CORESET) pool index value, the TCI state indicating that communications associated with the CORESET pool index value and the disallowed communication direction are disallowed for the one or more full-duplex time intervals.
13 . A network node for wireless communication, the network node comprising:
at least one memory; and
at least one processor communicatively coupled with the at least one memory, the at least one processor operable to cause the network node to:
transmit an indication, associated with a user equipment (UE), of a disallowed communication direction associated with one or more full-duplex time intervals, wherein one or more resource occasions that correspond to the one or more full-duplex time intervals are excluded from a Type- 1 hybrid automatic repeat request (HARQ) codebook; and
transmit or receive, during a full-duplex time interval of the one or more full-duplex time intervals, a communication, for the UE, in accordance with the communication being in a communication direction that is not the disallowed communication direction.
14 . The network node of claim 13 , wherein the indication of the disallowed communication direction is associated with either uplink signals and channels or downlink signals and channels being disallowed for the one or more full-duplex time intervals.
15 . The network node of claim 13 , wherein the at least one processor is further operable to cause the network node to:
drop, during the full-duplex time interval or an other full-duplex time interval of the one or more full-duplex time intervals, an other communication in accordance with the other communication being in the disallowed communication direction.
16 . The network node of claim 15 , wherein the other communication is a downlink communication, wherein the at least one processor is further operable to cause the network node to:
receive the Type-1 HARQ codebook.
17 . The network node of claim 13 , wherein the indication of the disallowed communication direction comprises an indication that the disallowed communication direction is disallowed, during the one or more full-duplex time intervals, for communications associated with a control resource set (CORESET) pool index value.
18 . The network node of claim 13 , wherein the indication of the disallowed communication direction comprises an indication of a transmission configuration indicator (TCI) state associated with a full-duplex operating state and the disallowed communication direction, the TCI state indicating that the disallowed communication direction is disallowed for the one or more full-duplex time intervals.
19 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network node, an indication of a disallowed communication direction associated with one or more full-duplex time intervals, wherein one or more resources occasions that correspond to the one or more full-duplex time intervals are excluded from a Type-1 hybrid automatic repeat request (HARQ) codebook; and
transmitting or receiving, to or from the network node and during a full-duplex time interval of the one or more full-duplex time intervals, a communication in accordance with the communication being in a communication direction that is not the disallowed communication direction.
20 . The method of claim 19 , wherein the indication of the disallowed communication direction is associated with either uplink signals and uplink channels or downlink signals and downlink channels being disallowed for the one or more full-duplex time intervals.
21 . The method of claim 19 , further comprising:
dropping, during the full-duplex time interval or an other full-duplex time interval of the one or more full-duplex time intervals, an other communication in accordance with the other communication being in the disallowed communication direction.
22 . The method of claim 21 , wherein the other communication is a downlink communication, the method further comprising:
refraining from transmitting a HARQ feedback indication associated with the downlink communication.
23 . The method of claim 22 , wherein refraining from transmitting the HARQ feedback indication associated with the downlink communication comprises:
transmitting the Type-1 HARQ codebook.
24 . The method of claim 23 , wherein the disallowed communication direction is disallowed for a control resource set (CORESET) pool index value, and wherein the Type-1 HARQ codebook is associated with the CORESET pool index value.
25 . The method of claim 19 , wherein the indication of the disallowed communication direction comprises an indication of a transmission configuration indicator (TCI) state associated with a full-duplex operating state and the disallowed communication direction, the TCI state indicating that the disallowed communication direction is disallowed for the one or more full-duplex time intervals.
26 . A method of wireless communication performed by a network node, the method comprising:
transmitting an indication, associated with a user equipment (UE), of a disallowed communication direction associated with one or more full-duplex time intervals, wherein one or more resource occasions that correspond to the one or more full-duplex time intervals are excluded from a Type-1 hybrid automatic repeat request (HARQ) codebook; and
transmitting or receiving, during a full-duplex time interval of the one or more full-duplex time intervals, a communication, for the UE, in accordance with the communication being in a communication direction that is not the disallowed communication direction.
27 . The method of claim 26 , wherein the indication of the disallowed communication direction is associated with either uplink signals and uplink channels or downlink signals and downlink channels being disallowed for the one or more full-duplex time intervals.
28 . The method of claim 26 , further comprising:
dropping, during the full-duplex time interval or an other full-duplex time interval of the one or more full-duplex time intervals, an other communication in accordance with the other communication being in the disallowed communication direction.
29 . The method of claim 28 , wherein the other communication is a downlink communication, the method further comprising:
receiving the Type-1 HARQ codebook.
30 . The method of claim 26 , wherein the one or more full-duplex time intervals include at least one of:
one or more full-duplex slots, or
one or more full-duplex orthogonal frequency-division multiplexing (OFDM) symbols.