公开(公告)号：US20250063588A1

公开(公告)日：2025-02-20

申请号：US18451781

申请日：2023-08-17

Applicant: QUALCOMM Incorporated

Inventor： Akash KUMAR ,  Kadiyala ABHIRAM ,  Eswar Venkata Narasimha Muthyala Prasad BAHADURSHA

IPC: H04W72/542 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a carrier aggregation (CA) configuration including at least a primary component carrier (PCC) and a secondary component carrier (SCC), where the PCC is configured for frequency domain duplexed (FDD) communications and the SCC is configured for time domain duplexed (TDD) communications. To determine whether sounding reference signal (SRS) carrier switching (e.g., between the PCC and the SCC) is appropriate, the UE may monitor performance metrics. If the performance metrics fail to satisfy corresponding thresholds, the UE may reduce an SRS periodicity. For instance, the UE may request that a network entity reduce the SRS periodicity. Alternatively, the UE may reduce a quantity of antennas used for the SRS transmissions. In other examples, the UE may initiate an interchange between the PCC and the SCC such that SRS carrier switching is no longer utilized.