Qualcomm Incorporated

Rishika Tindola

Uttam Vyas

Muralidharan Murugan

Subrato Kumar De

Mattias Kaulard Huber

Ankur Bhattacharjee

Krishna Ram Budhathoki

Arvind Vardarajan Santhanam

Bapineedu Chowdary Gummadi

Nitin Pant

Hargovind Prasad Bansal

Gaurav Singh

Sumanth Kumar Kota

Sivasubramanian Ramalingam

Rahul Chandrashekar Sahukar

Naresh Maradana

Syam Prasad Reddy Battula

Sattwik Nandi

Harshpreet Singh

Certain aspects of the present disclosure provide a method of wireless communications at a user equipment (UE), generally including detecting, within a period, a number of indications for modification to system information from a cell and performing one or more actions, after the detection, to prevent the UE from attempting to access the cell.

Fake cell detection

Aspects relate to techniques for expediting New Radio (NR) cell addition in non-standalone (NSA) mode. The UE may receive a conditional handover (CHO) command from a first anchor cell operating a first frequency range (e.g., a Long Term Evolution (LTE) frequency range) that enables the UE to subsequently select a different anchor cell to which to perform a handover. The UE may then receive a deconfiguration from the first anchor cell of a measurement object for secondary cell addition in a second frequency range (e.g., a NR frequency range). Based on the CHO command and the deconfiguration of the measurement object, the UE may then perform a handover to a second anchor cell in the first frequency range to facilitate addition of at least one secondary cell in the second frequency range.

Radio (NR) cell addition in non-standalone mode

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a set of cells configured for conditional handover (CHO). The UE may identify one or more features associated with a cell. The UE may monitor one or more cells of the set of cells, wherein the one or more cells are associated with the one or more features, and wherein the one or more cells are prioritized over cells not associated with the one or more features in the cell search. The UE may initiate a handover to an identified cell based at least in part on the cell search. Numerous other aspects are described.

Techniques for cell selection and service continuity for conditional handover

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive handover information associated with one or more neighbor cells. The UE may identify that a first discontinuous reception (DRX) cycle associated with a first subscriber identity module (SIM) of the UE at least partially overlaps with a second DRX cycle associated with a second SIM of the UE. The UE may identify that at least one of the first DRX cycle or the second DRX cycle does not overlap with a third DRX cycle associated with a neighbor cell of the one or more neighbor cells. The UE may transmit, to the neighbor cell, a message associated with a handover of at least one of the first SIM or the second SIM to the neighbor cell. Numerous other aspects are described.

Techniques for discontinuous reception collision handling for multiple subscriber identity module user equipment

In various embodiments, a wireless device processor may determine a threat score for a first cell, determine whether the first cell threat score is below a first threat score threshold, update a good neighbor cell data structure using neighbor cell information from the first cell in response to determining that the first cell threat score is below the first threat score threshold, performing cell reselection to a second cell, determine whether the second cell transmits a system information block message indicating fake neighbor cell information, and increase a threat score for the second cell in response to determining that the second cell provides the SIB message indicating fake neighbor cell information and that a good neighbor cell data structure includes an indication of one or more good neighbor cells that are within the time threshold and the location threshold and doing countermeasures in a response to the determination.

Mitigating fake cell imprisonment

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device, such as an in-vehicle device, may determine a selection value for a cell that indicates a priority for selection of the cell by the wireless device and calculates, from the selection value, an adjusted selection value for the cell using an offset that increases a priority of selection for cells that support in-vehicle emergency calls. The wireless device selectively selects the cell based at least in part on the adjusted selection value. Numerous other aspects are provided.

Cell selection for in-vehicle emergency call services

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Hyderabad Telangana, India

Rishika Tindola