Method and apparatus for transmitting user equipment triggered report in a wireless communication system
Methods, systems, and apparatuses are provided for transmitting User Equipment (UE) triggered reports in a wireless communication system, wherein a method of a UE comprises receiving a plurality of Channel State Information (CSI) report configurations associated with a UE-initiated report, generating a first UE-initiated report if a condition of a first event is satisfied, transmitting a Pre-Notification (PN) on a first Uplink (UL) resource, and transmitting the first UE-initiated report on a second UL resource.
1 . A method of a User Equipment (UE), comprising:
receiving a plurality of Channel State Information (CSI) report configurations, in a first serving cell, associated with a UE-initiated report, wherein each CSI report configuration is associated with single event, a first Uplink (UL) resource or a first resource Identity (ID), and a second UL resource or a second resource ID, and wherein the plurality of CSI report configurations are associated with a same first UL resource;
receiving a second CSI report configuration in a second serving cell, wherein:
the second CSI report configuration is associated with a second event, a third UL resource or a third resource ID, and a fourth UL resource or a fourth resource ID, and/or
the second CSI report configuration does not belong to the plurality of CSI report configurations, wherein when the second serving cell is different than the first serving cell, the third UL resource is configured to be different than the first UL resource;
generating a first UE-initiated report if a condition of a first event is satisfied, wherein the first event is associated with a first CSI report configuration among the plurality of CSI report configurations and the first UE-initiated report comprises information indicating the first CSI report configuration among the plurality of CSI report configurations, and the information is represented via one or more code-points, and an association between each code-point and CSI report configuration is based on an ascending order of ID of the CSI report configuration associated with the plurality of CSI report configurations;
transmitting a Pre-Notification (PN) on the first UL resource; and
transmitting the first UE-initiated report on the second UL resource.
2 . The method of claim 1 , wherein at least one of: the plurality of CSI report configurations are configured for a same first serving cell, or when the plurality of CSI report configurations are configured for the same first serving cell, the plurality of CSI report configurations share the same first UL resource.
3 . The method of claim 1 , wherein when at least one event among multiple events associated with the plurality of CSI report configurations is triggered, the UE transmits the PN on the first UL resource.
4 . The method of claim 1 , wherein when there is no event associated with the plurality of CSI report configurations being triggered, the UE does not transmit on the first UL resource.
5 . The method of claim 2 , wherein at least one of:
the second CSI report configuration is configured for the second serving cell, or
the third UL resource is only associated with the second CSI report configuration.
6 . The method of claim 5 , wherein at least one of:
when a condition of the second event is satisfied, the UE generates a second UE-initiated report, wherein the second UE-initiated report does not comprise information indicating the second CSI report configuration, or
the UE transmits the PN on the third UL resource and transmits the second UE-initiated report on the fourth UL resource.
7 . The method of claim 5 , wherein at least one of:
the first UL resource and the third UL resource correspond to a Physical Uplink Control Channel (PUCCH) resource, or
the second UL resource and the fourth UL resource corresponds to a Physical Uplink Shared Channel (PUSCH) resource.
8 . The method of claim 5 , wherein at least one of:
there is one-to-one mapping between the first UL resource and the second UL resource, the first UL resource and the second UL resource are configured with a same periodicity, wherein there is one-to-one mapping between the third UL resource and the fourth UL resource, or the third UL resource and the fourth UL resource are configured with a same periodicity.
9 . The method of claim 1 , wherein the first UL resource is used to indicate usage of the second UL resource.
10 . The method of claim 1 , wherein the first UE-initiated report transmitted on the second UL resource is via Uplink Control Information (UCI).
11 . The method of claim 1 , wherein when more than one events associated with the plurality of CSI report configurations are triggered, the UE determines one UE-initiated report to be transmitted on the second UL resource among the more than one events.
12 . The method of claim 11 , wherein at least one of: the determination is based on priority of each of the plurality of CSI report configurations, or priority of each of the plurality of CSI report configurations is based on an ID of the CSI report configuration, or a lower ID of the CSI report configuration corresponds to a higher priority.
13 . The method of claim 1 , wherein the first UE-initiated report comprises one or more Downlink (DL) Reference Signal (RS) resource indicators and a corresponding Layer 1 (L1)-Reference Signal Received Power (RSRP).
14 . The method of claim 1 , wherein the one event corresponds to any of:
Event-1, wherein quality of a current beam is lower than a certain threshold,
Event-2, wherein quality of at least one new beam, such as L1-RSRP, becomes a threshold value greater than the current beam,
Event-3, wherein quality of a new beam is greater than a certain threshold, or
Event-4, wherein quality of the current beam is lower than a threshold 1, and quality of the at least one new beam is greater than a threshold 2.
15 . A User Equipment (UE), comprising:
a memory; and
a processor operatively connected to the memory, wherein the processor is configured to execute a program code to:
receive a plurality of Channel State Information (CSI) report configurations, in a first serving cell, associated with a UE-initiated report, wherein each CSI report configuration is associated with single event, a first Uplink (UL) resource or a first resource Identity (ID), and a second UL resource or a second resource ID, and wherein the plurality of CSI report configurations are associated with a same first UL resource;
receive a second CSI report configuration in a second serving cell, wherein:
the second CSI report configuration is associated with a second event, a third UL resource or a third resource ID, and a fourth UL resource or a fourth resource ID, and/or
the second CSI report configuration does not belong to the plurality of CSI report configurations, wherein when the second serving cell is different than the first serving cell, the third UL resource is configured to be different than the first UL resource;
generate a first UE-initiated report if a condition of a first event is satisfied, wherein the first event is associated with a first CSI report configuration among the plurality of CSI report configurations and the first UE-initiated report comprises information indicating the first CSI report configuration among the plurality of CSI report configurations, and the information is represented via one or more code-points, and an association between each code-point and CSI report configuration is based on an ascending order of ID of the CSI report configuration associated with the plurality of CSI report configurations;
transmit a Pre-Notification (PN) on the first UL resource; and
transmit the first UE-initiated report on the second UL resource.
16 . The UE of claim 15 , wherein a least one of: the plurality of CSI report configurations are configured for the same first serving cell, or when the plurality of CSI report configurations are configured for the same first serving cell, the plurality of CSI report configurations share the same first UL resource.
17 . The UE of claim 15 , wherein when at least one event among multiple events associated with the plurality of CSI report configurations is triggered, the UE transmits the PN on the first UL resource.
18 . The UE of claim 15 , wherein when there is no event associated with the plurality of CSI report configurations being triggered, the UE does not transmit on the first UL resource.
19 . The UE of claim 16 , wherein at least one of:
the second CSI report configuration is configured for the second serving cell, or
the third UL resource is only associated with the second CSI report configuration.
20 . The UE of claim 19 , wherein at least one of:
when a condition of the second event is satisfied, the UE generates a second UE-initiated report, wherein the second UE-initiated report does not comprise information indicating the second CSI report configuration, or
the UE transmits the PN on the third UL resource and transmits the second UE-initiated report on the fourth UL resource.