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US-20260128842-A1 - TRANSMISSION CONFIGURATION INDICATOR STATE IDENTIFIER SIGNALING FOR CONDITIONAL LOWER LAYER TRIGGERED MOBILITY

US20260128842A1US 20260128842 A1US20260128842 A1US 20260128842A1US-20260128842-A1

Abstract

In some implementations, a user equipment (UE) may transmit at least one of a transmission configuration indicator (TCI) state activation/deactivation request message or a TCI state activation/deactivation notification message. The UE may activate or deactivate at least one TCI state associated with a conditional lower layer triggered mobility procedure based at least in part on the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message.

Inventors

  • Doohyun SUNG
  • Jelena Damnjanovic

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260507
Application Date
20250922

Claims (20)

  1. 1 . A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, which are configured, individually or in any combination, to: transmit at least one of a transmission configuration indicator (TCI) state activation/deactivation request message or a TCI state activation/deactivation notification message; and activate or deactivate at least one TCI state associated with a conditional lower layer triggered mobility (C-LTM) procedure based at least in part on the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message.
  2. 2 . The UE of claim 1 , wherein the one or more processors, to transmit that at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message, are configured, individually or in any combination, to transmit the TCI state activation/deactivation request message.
  3. 3 . The UE of claim 2 , wherein the TCI state activation/deactivation request message is associated with a medium access control (MAC) control element (MAC-CE).
  4. 4 . The UE of claim 2 , wherein the one or more processors are further configured, individually or in any combination, to receive, in response to transmitting the TCI state activation/deactivation request message, a TCI state activation/deactivation medium access control (MAC) control element (MAC-CE) indicating that one or more TCI states are to be activated or deactivated.
  5. 5 . The UE of claim 2 , wherein the TCI state activation/deactivation request message indicates at least one of: a candidate cell identifier (ID), one or more TCI states associated with the candidate cell ID, one or more joint/separate TCI state indicators associated with the one or more TCI states, one or more downlink/joint TCI state or uplink TCI state indicators associated with the one or more TCI states, or one or more activation/deactivation indicators associated with the one or more TCI states.
  6. 6 . The UE of claim 1 , wherein the one or more processors, to transmit the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message, are configured, individually or in any combination, to transmit the TCI state activation/deactivation notification message.
  7. 7 . The UE of claim 6 , wherein the TCI state activation/deactivation notification message is associated with a medium access control (MAC) control element (MAC-CE).
  8. 8 . The UE of claim 6 , wherein the one or more processors, to transmit the TCI state activation/deactivation notification message, are configured, individually or in any combination, to transmit the TCI state activation/deactivation notification message in response to activating or deactivating the at least one TCI state.
  9. 9 . The UE of claim 6 , wherein the TCI state activation/deactivation notification message indicates at least one of: one or more candidate cell identifiers (IDs), one or more TCI states associated with each of the one or more candidate cell IDs, or one or more activation/deactivation indicators associated with the one or more TCI states associated with each of the one or more candidate cell IDs.
  10. 10 . The UE of claim 6 , wherein the one or more processors are further configured, individually or in any combination, to receive configuration information that enables at least one of: activation or deactivation of the at least one TCI state without transmission of the TCI state activation/deactivation request message, or transmission of the TCI state activation/deactivation notification message.
  11. 11 . The UE of claim 6 , wherein the one or more processors are further configured, individually or in any combination, to receive, in response to transmitting the TCI state activation/deactivation notification message, a TCI state activation/deactivation medium access control (MAC) control element (MAC-CE).
  12. 12 . The UE of claim 11 , wherein the TCI state activation/deactivation MAC-CE confirms activation or deactivation of the at least one TCI state by indicating same TCI state information as TCI state information indicated by the TCI state activation/deactivation notification message.
  13. 13 . The UE of claim 11 , wherein the TCI state activation/deactivation MAC-CE indicates different TCI state information than TCI state information indicated by the TCI state activation/deactivation notification message, and wherein the one or more processors are further configured, individually or in any combination, to: activate one or more TCI states indicated by the TCI state activation/deactivation MAC-CE that were not indicated by the TCI state activation/deactivation notification message, or deactivate one or more TCI states indicated by the TCI state activation/deactivation notification message that were not indicated by the TCI state activation/deactivation MAC-CE.
  14. 14 . A method of wireless communication performed by a user equipment (UE), comprising: transmitting at least one of a transmission configuration indicator (TCI) state activation/deactivation request message or a TCI state activation/deactivation notification message; and activating or deactivating at least one TCI state associated with a conditional lower layer triggered mobility (C-LTM) procedure based at least in part on the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message.
  15. 15 . The method of claim 14 , wherein transmitting that at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message includes transmitting the TCI state activation/deactivation request message.
  16. 16 . The method of claim 15 , further comprising receiving, in response to transmitting the TCI state activation/deactivation request message, a TCI state activation/deactivation medium access control (MAC) control element (MAC-CE) indicating that one or more TCI states are to be activated or deactivated.
  17. 17 . The method of claim 14 , wherein transmitting the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message includes transmitting the TCI state activation/deactivation notification message.
  18. 18 . The method of claim 17 , further comprising receiving, in response to transmitting the TCI state activation/deactivation notification message, a TCI state activation/deactivation medium access control (MAC) control element (MAC-CE).
  19. 19 . The method of claim 18 , wherein the TCI state activation/deactivation MAC-CE indicates different TCI state information than TCI state information indicated by the TCI state activation/deactivation notification message, and wherein the method further comprises at least one of: activating one or more TCI states indicated by the TCI state activation/deactivation MAC-CE that were not indicated by the TCI state activation/deactivation notification message, or deactivating one or more TCI states indicated by the TCI state activation/deactivation notification message that were not indicated by the TCI state activation/deactivation MAC-CE.
  20. 20 . 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: transmit at least one of a transmission configuration indicator (TCI) state activation/deactivation request message or a TCI state activation/deactivation notification message; and activate or deactivating at least one TCI state associated with a conditional lower layer triggered mobility (C-LTM) procedure based at least in part on the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message.

Description

CROSS-REFERENCE TO RELATED APPLICATION This Patent Application claims priority to U.S. Provisional Patent Application No. 63/716,487, filed on November 5, 2024, entitled “TRANSMISSION CONFIGURATION INDICATOR STATE IDENTIFIER SIGNALING FOR CONDITIONAL LOWER LAYER TRIGGERED MOBILITY,” and assigned to the assignee hereof. The disclosure of the prior Application is considered part of and is incorporated by reference into this Patent Application. FIELD OF THE DISCLOSURE Aspects of the present disclosure generally relate to wireless communication and specifically relate to techniques, apparatuses, and methods associated with transmission configuration indicator state identifier signaling for conditional lower layer triggered mobility. BACKGROUND Wireless communication systems are widely deployed to provide various services, which may involve carrying or supporting voice, text, other messaging, video, data, and/or other traffic. Typical wireless communication systems may employ multiple-access radio access technologies (RATs) capable of supporting communication among multiple wireless communication devices including user devices or other devices by sharing the available system resources (for example, time domain resources, frequency domain resources, spatial domain resources, and/or device transmit power, among other examples). Such multiple-access RATs are supported by technological advancements that have been adopted in various telecommunication standards, which define common protocols that enable different wireless communication devices to communicate on a local, municipal, national, regional, or global level. An example telecommunication standard is New Radio (NR). NR, which may also be referred to as 5G, is part of a continuous mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP). NR (and other RATs beyond NR) may be designed to better support enhanced mobile broadband (eMBB) access, Internet of things (IoT) networks or reduced capability device deployments, and ultra-reliable low latency communication (URLLC) applications. To support these verticals, NR systems may be designed to implement a modularized functional infrastructure, a disaggregated and service-based network architecture, network function virtualization, network slicing, multi-access edge computing, millimeter wave (mmWave) technologies including massive multiple-input multiple-output (MIMO), licensed and unlicensed spectrum access, non-terrestrial network (NTN) deployments, sidelink and other device-to-device direct communication technologies (for example, cellular vehicle-to-everything (CV2X) communication), multiple-subscriber implementations, high-precision positioning, and/or radio frequency (RF) sensing, among other examples. As the demand for connectivity continues to increase, further improvements in NR may be implemented, and other RATs, such as 6G and beyond, may be introduced to enable new applications and facilitate new use cases. SUMMARY Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include transmitting at least one of a transmission configuration indicator (TCI) state activation/deactivation request message or a TCI state activation/deactivation notification message. The method may include activating or deactivating at least one TCI state associated with a conditional lower layer triggered mobility (C-LTM) procedure based at least in part on the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message. Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include receiving, from a UE, at least one of a TCI state activation/deactivation request message or a TCI state activation/deactivation notification message, where the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message is associated with the UE activating or deactivating at least one TCI state associated with a C-LTM procedure. The method may include transmitting, in response to receiving the at least one of the TCI state activation/deactivation request message or the TCI state activation/deactivation notification message, a TCI state activation/deactivation medium access control (MAC) control element (MAC-CE) associated with the UE activating or deactivating the at least one TCI state associated with the C-LTM procedure. Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured, individually or in any combination, to transmit at least one of a TCI state activation/deactivation request message or a TCI state activation/deactivation notification message. The one or more processors may be