BANDWIDTH PART SWITCHING USING UNICAST, MULTICAST, AND BROADCAST BANDWIDTH PARTS
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a first common frequency resource (CFR) configured for multicast downlink communications and associated with a first bandwidth part, and an indication of a second CFR configured for broadcast downlink communications and associated with a second bandwidth part. The UE may determine whether to switch a bandwidth part for receiving downlink communications based at least in part on the indication of the first CFR and the indication of the second CFR. Numerous other aspects are provided.
1 . (canceled)
2 . A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive an indication of a first bandwidth part (BWP) associated with multicast downlink communications, and an indication of a second BWP associated with broadcast downlink communications; and
selectively perform bandwidth switching based at least in part on expiration of a timer associated with one of a reception of first downlink control information associated with a unicast communication or a reception of second downlink control information associated with a multicast communication.
3 . The UE of claim 2 , wherein the indication of the first BWP is included in configuration information identifying an initial BWP.
4 . The UE of claim 3 , wherein the first BWP is included within a unicast bandwidth part, and wherein the first BWP is associated with a same BWP identifier as that of the unicast bandwidth part.
5 . The UE of claim 3 , wherein the indication of the second BWP is included in the configuration information.
6 . The UE of claim 3 , wherein the initial BWP is the second BWP.
7 . The UE of claim 2 , wherein the indication of the second BWP is provided by an indication of a configured BWP different from at least one of a type 0 control resource set (CORESET0) or an initial BWP indicated in system information.
8 . The UE of claim 2 , wherein the indication of the second BWP is included in a system information block.
9 . The UE of claim 8 , wherein the second BWP is different than at least one of a type 0 control resource set (CORESET0) or an initial BWP configured in the system information block.
10 . The UE of claim 8 , wherein the second BWP has a same size as a type 0 control resource set (CORESET0) or an initial BWP configured in the system information block.
11 . The UE of claim 2 , wherein the indication of the second BWP includes an indication of a first-type broadcast BWP that is the same as an initial BWP and an indication of a second-type broadcast BWP that is different than the initial BWP, wherein the one or more processors are further configured to:
select the first-type broadcast BWP or the second-type broadcast BWP as the second BWP based at least in part on a capability or type of the UE.
12 . The UE of claim 2 , wherein the one or more processors, to selectively perform bandwidth switching, are further configured to:
switch to the first BWP.
13 . The UE of claim 2 , wherein the one or more processors are further configured to:
switch to the second BWP to receive one or more broadcast downlink communications.
14 . The UE of claim 2 , wherein the one or more processors, to selectively perform bandwidth switching, are configured to:
set or reset the timer based at least in part on the second downlink control information, wherein the second downlink control information is associated with a group radio network temporary identifier.
15 . The UE of claim 2 , wherein the one or more processors, to selectively perform bandwidth switching, are configured to:
set or reset the timer based at least in part on the first downlink control information, wherein the first downlink control information is associated with a UE-specific radio network temporary identifier.
16 . The UE of claim 2 , wherein the one or more processors are further configured to:
receive, in the first BWP, the multicast communication based on the second downlink control information.
17 . The UE of claim 2 , wherein the second BWP is included within the first BWP, and wherein the one or more processors are configured to:
receive at least one of the multicast communication in the first BWP or a broadcast downlink communication in the second BWP.
18 . The UE of claim 2 , wherein the one or more processors are further configured to:
receive, in a unicast BWP, the first downlink control information.
19 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving an indication of a first bandwidth part (BWP) associated with multicast downlink communications, and an indication of a second BWP associated with broadcast downlink communications; and
selectively performing bandwidth switching based at least in part on expiration of a timer associated with one of a reception of first downlink control information associated with a unicast communication or a reception of second downlink control information associated with a multicast communication occurs.
20 . The method of claim 19 , wherein the indication of the first BWP is included in configuration information identifying an initial BWP.
21 . A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive an indication of a first bandwidth part (BWP) associated with multicast downlink communications, and an indication of a second BWP associated with broadcast downlink communications; and
selectively perform bandwidth switching based at least in part on expiration of a timer associated with one of a reception of first downlink control information associated with a unicast communication or a reception of second downlink control information associated with a multicast communication.