Techniques for enhanced cell discontinuous transmission and discontinuous reception
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, information configuring a discontinuous reception (DRX) cycle that includes a DRX active time and a DRX inactive time. The UE may identify, among a set of channels or signals eligible to be transmitted or received during the DRX inactive time, one or more channels or signals associated with a restriction rule based on an indication that is preconfigured or received during the DRX active time. The UE may refrain from transmitting or receiving the one or more channels or signals that are associated with the restriction rule in one or more occasions that occur during the DRX inactive time based at least in part on the restriction rule being enabled for the one or more channels or signals. Numerous other aspects are described.
1 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a network node, information configuring a discontinuous reception (DRX) cycle that includes a DRX active time and a DRX inactive time;
identifying, among a set of channels or signals that are eligible to be transmitted or received during the DRX inactive time, one or more channels or signals that are associated with a restriction rule based at least in part on an indication to enable the restriction rule that is preconfigured or received during the DRX active time, wherein the one or more channels or signals associated with the restriction rule include uplink channels or signals, downlink channels or signals, or both that are associated with transmission occasions that occur during the DRX inactive time; and
refraining from transmitting or receiving the one or more channels or signals that are associated with the restriction rule in the transmission occasions that occur during the DRX inactive time based at least in part on the restriction rule being enabled for the one or more channels or signals.
2 . The method of claim 1 , further comprising:
receiving, from the network node during the DRX active time, the indication to enable the restriction rule associated with the one or more channels or signals.
3 . The method of claim 2 ,
wherein the indication is included in a radio resource control (RRC) message, a medium access control (MAC) control element (MAC-CE), or a downlink control information (DCI) message.
4 . The method of claim 2 ,
wherein the indication specifies a duration in which the restriction rule is enabled.
5 . The method of claim 2 ,
wherein the indication specifies that the restriction rule is enabled until explicitly changed by a subsequent indication from the network node.
6 . The method of claim 2 ,
wherein the indication specifies a relaxed periodicity for the one or more channels or signals associated with the restriction rule.
7 . The method of claim 6 ,
wherein the indication specifies the relaxed periodicity according to a respective scaling factor that is applied to a default periodicity associated with each of the one or more channels or signals associated with the restriction rule.
8 . The method of claim 6 ,
wherein the indication specifies the relaxed periodicity according to a common scaling factor that is applied to a default periodicity associated with all of the one or more channels or signals associated with the restriction rule.
9 . The method of claim 6 ,
wherein the indication explicitly specifies the relaxed periodicity associated with the one or more channels or signals associated with the restriction rule.
10 . The method of claim 6 ,
wherein the relaxed periodicity associated with the one or more channels or signals is associated with the information configuring the DRX cycle.
11 . The method of claim 2 ,
wherein the indication specifies a resource identifier associated with the one or more channels or signals while the restriction rule is enabled.
12 . The method of claim 2 ,
wherein the indication specifies a configuration to associate with the one or more channels or signals while the restriction rule is enabled.
13 . The method of claim 1 ,
wherein the restriction rule applicable to the one or more channels or signals is associated with the information configuring the DRX cycle.
14 . The method of claim 1 ,
wherein the restriction rule applicable to the one or more channels or signals is specified in one or more wireless communication standards.
15 . The method of claim 1 , wherein the one or more channels or signals comprise one or more of:
downlink channels or signals related to radio resource monitoring,
downlink channels or signals related to radio link monitoring,
downlink channels or signals related to system information,
a semi-persistent scheduling physical downlink shared channel (PDSCH),
a dynamic grant PDSCH,
a scheduling request,
a configured grand physical uplink shared channel (PUSCH),
a random access channel message, or
a dynamic grant PUSCH.
16 . A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive, from a network node, information configuring a discontinuous reception (DRX) cycle that includes a DRX active time and a DRX inactive time;
identify, among a set of channels or signals that are eligible to be transmitted or received during the DRX inactive time, one or more channels or signals that are associated with a restriction rule based at least in part on an indication to enable the restriction rule that is preconfigured or received during the DRX active time, wherein the one or more channels or signals associated with the restriction rule include uplink channels or signals, downlink channels or signals, or both that are associated with transmission occasions that occur during the DRX inactive time; and
refrain from transmitting or receiving the one or more channels or signals that are associated with the restriction rule in the transmission occasions that occur during the DRX inactive time based at least in part on the restriction rule being enabled for the one or more channels or signals.
17 . The UE of claim 16 ,
wherein the one or more processors are further configured to:
receive, from the network node during the DRX active time, the indication to enable the restriction rule associated with the one or more channels or signals.
18 . The UE of claim 17 ,
wherein the indication is included in a radio resource control (RRC) message, a medium access control (MAC) control element (MAC-CE), or a downlink control information (DCI) message.
19 . The UE of claim 17 ,
wherein the indication specifies a duration in which the restriction rule is enabled.
20 . The UE of claim 17 ,
wherein the indication specifies that the restriction rule is enabled until explicitly changed by a subsequent indication from the network node.
21 . The UE of claim 17 ,
wherein the indication specifies a relaxed periodicity for the one or more channels or signals associated with the restriction rule.
22 . The UE of claim 17 ,
wherein the indication specifies a resource identifier associated with the one or more channels or signals while the restriction rule is enabled.
23 . The UE of claim 17 ,
wherein the indication specifies a configuration to associate with the one or more channels or signals while the restriction rule is enabled.
24 . The UE of claim 16 ,
wherein the restriction rule applicable to the one or more channels or signals is associated with the information configuring the DRX cycle.
25 . The UE of claim 16 ,
wherein the restriction rule applicable to the one or more channels or signals is specified in one or more wireless communication standards.
26 . The UE of claim 16 , wherein the one or more channels or signals comprise one or more of:
downlink channels or signals related to radio resource monitoring,
downlink channels or signals related to radio link monitoring,
downlink channels or signals related to system information,
a semi-persistent scheduling physical downlink shared channel (PDSCH),
a dynamic grant PDSCH,
a scheduling request,
a configured grand physical uplink shared channel (PUSCH),
a random access channel message, or
a dynamic grant PUSCH.
27 . 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, from a network node, information configuring a discontinuous reception (DRX) cycle that includes a DRX active time and a DRX inactive time;
identify, among a set of channels or signals that are eligible to be transmitted or received during the DRX inactive time, one or more channels or signals that are associated with a restriction rule based at least in part on an indication to enable the restriction rule that is preconfigured or received during the DRX active time, wherein the one or more channels or signals associated with the restriction rule include uplink channels or signals, downlink channels or signals, or both that are associated with transmission occasions that occur during the DRX inactive time; and
refrain from transmitting or receiving the one or more channels or signals that are associated with the restriction rule in one or more occasions that occur during the DRX inactive time based at least in part on the restriction rule being enabled for the one or more channels or signals.
28 . The non-transitory computer-readable medium of claim 27 , wherein the one or more channels or signals comprise one or more of:
downlink channels or signals related to radio resource monitoring,
downlink channels or signals related to radio link monitoring,
downlink channels or signals related to system information,
a semi-persistent scheduling physical downlink shared channel (PDSCH),
a dynamic grant PDSCH,
a scheduling request,
a configured grand physical uplink shared channel (PUSCH),
a random access channel message, or
a dynamic grant PUSCH.
29 . An apparatus for wireless communication, comprising:
means for receiving, from a network node, information configuring a discontinuous reception (DRX) cycle that includes a DRX active time and a DRX inactive time;
means for identifying, among a set of channels or signals that are eligible to be transmitted or received during the DRX inactive time, one or more channels or signals that are associated with a restriction rule based at least in part on an indication to enable the restriction rule that is preconfigured or received during the DRX active time, wherein the one or more channels or signals associated with the restriction rule include uplink channels or signals, downlink channels or signals, or both that are associated with transmission occasions that occur during the DRX inactive time; and
means for refraining from transmitting or receiving the one or more channels or signals that are associated with the restriction rule in one or more occasions that occur during the DRX inactive time based at least in part on the restriction rule being enabled for the one or more channels or signals.
30 . The apparatus of claim 29 , wherein the one or more channels or signals comprise one or more of:
downlink channels or signals related to radio resource monitoring,
downlink channels or signals related to radio link monitoring,
downlink channels or signals related to system information,
a semi-persistent scheduling physical downlink shared channel (PDSCH),
a dynamic grant PDSCH,
a scheduling request,
a configured grand physical uplink shared channel (PUSCH),
a random access channel message, or
a dynamic grant PUSCH.