公开(公告)号：US20240314681A1

公开(公告)日：2024-09-19

申请号：US18184464

申请日：2023-03-15

Applicant: QUALCOMM Incorporated

Inventor： Victor KULIK ,  Junsheng HAN ,  Arvind Vardarajan SANTHANAM ,  Justin MCGLOIN ,  Rashmi KULKARNI ,  Shanshan WANG ,  Osama LOTFALLAH

IPC: H04W48/20 ,  H04W8/12 ,  H04W64/00

CPC classification number: H04W48/20 ,  H04W8/12 ,  H04W64/006

Abstract: In mobility scenarios, a user equipment (UE) may enter an airplane mod in which the UE has limited or no connectivity to a network. Cell selection latency after terminating the airplane mode may result in a delay in providing network or communication services. Some aspects described herein enable a reduction in latency associated with cell selection after operation in a mobility scenario. For example, a UE may determine that the UE is operating in a mobility scenario, and perform a receive-only cell selection procedure. Additionally, or alternatively, the UE may predict a destination associated with the mobility scenario and may identify a band list for performing a cell selection procedure. In this way, when the UE exits the mobility scenario, the UE reduces a time to successfully complete cell selection.

公开(公告)号：US20220369176A1

公开(公告)日：2022-11-17

申请号：US17662978

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

Inventor： Dominique Francois BRESSANELLI ,  Osama LOTFALLAH ,  Cogol TINA ,  Abhishek BHATNAGAR ,  Vitaly DRAPKIN ,  Lenaig Genevieve CHAPONNIERE

IPC: H04W36/00

Abstract: Aspects disclosed herein facilitate security handling of 5GS to EPC reselection are disclosed herein. An example method at a UE includes transmitting a first TAU request, the first TAU request encoded using a first security context associated with a first RAT, the first TAU request being integrity protected using a first uplink count based on the first security context, and the first TAU request including a first set of information including an identifier mapped to a second RAT associated with the first network entity. The example method also includes transmitting a second TAU request, the second TAU request including the first set of information, the second TAU request being integrity protected using a second uplink count. The example method also includes communicating based on a mapped security context based on the first security context and at least one of the first uplink count or the second uplink count.

公开(公告)号：US20220078617A1

公开(公告)日：2022-03-10

申请号：US17468331

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Xuepan GUAN ,  Osama LOTFALLAH ,  Vitaly DRAPKIN ,  Cogol TINA ,  Swathi SESHADRI

IPC: H04W12/08 ,  H04W76/10 ,  H04L29/06

Abstract: Techniques and apparatus for optimizing an initial access stratum security mode command procedure are described. One example technique includes sending a first service request to establish a connection with a network. A second service request is sent to the network, upon determining that one or more criteria is satisfied. Another example technique includes sending a first service request to establish a connection with a network and sending a second service request after sending the first service request. The first service request is associated with a first security parameter and the second service request is associated with a second security parameter. A security mode command procedure is participated in with a base station, based on the first security parameter and the second security parameter.

公开(公告)号：US20230189371A1

公开(公告)日：2023-06-15

申请号：US17997088

申请日：2020-06-21

Applicant: QUALCOMM INCORPORATED

Inventor： Sohrab AHMAD ,  Bhanu Kiran JANGA ,  Osama LOTFALLAH ,  Abhishek BHATNAGAR ,  Quanling ZHANG

IPC: H04W76/18

CPC classification number: H04W76/18

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently falling back from one RAT to another RAT while maximizing the services available to a UE. When a request from a UE for communicating with a base station using one RAT is rejected by a network node for unexpected causes, the UE may use the techniques described herein to fallback to an appropriate RAT. For instance, after receiving a response indicating that a request including fifth generation (5G) parameters is rejected, the UE may drop the 5G parameters and fall back to fourth generation (4G), rather than falling back to second generation (2G) or third generation (3G). The unexpected causes may be preconfigured and may be determined based on a number of factors, including a subscription of the UE, a public land mobile network (PLMN) associated with the network node, etc.

公开(公告)号：US20230010736A1

公开(公告)日：2023-01-12

申请号：US17650169

申请日：2022-02-07

Applicant: QUALCOMM Incorporated

Inventor： Adam HEBEIN ,  Manisha PRIYADARSHINI ,  Qin Xue FRANTTI ,  Brian A’HEARN ,  Rishav REJ ,  Qingxin CHEN ,  Uttam PATTANAYAK ,  Vikram SINGH ,  Bhupesh Manoharlal UMATT ,  Carlos Marcelo Dias PAZOS ,  Cherng-Shung HSU ,  Osama LOTFALLAH ,  Flora Pui San CHAN ,  Abhishek BHATNAGAR ,  Reza SHAHIDI ,  Cheol Hee PARK ,  Subashini KRISHNAMURTHY ,  Sandeep RAMANNAVAR ,  Jun HU ,  Shailesh MAHESHWARI ,  Thomas CHRISTOL ,  Hemanth Kumar RAYAPATI ,  Krishna Chaitanya MUKKERA

IPC: H04W76/15 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, using a first subscription of the UE, a first communication connection associated with a first service. The UE may establish, using a second subscription of the UE, a second communication connection associated with a second service. The UE may operate in a dual subscriber identity module (SIM) dual active (DSDA) mode based at least in part on establishing the first communication connection and establishing the second communication connection. The UE may perform an action to maintain concurrent services, including the first service and the second service, while operating in the DSDA mode. Numerous other aspects are described.

公开(公告)号：US20220110051A1

公开(公告)日：2022-04-07

申请号：US17492935

申请日：2021-10-04

Applicant: QUALCOMM Incorporated

Inventor： Amer CATOVIC ,  Stephen William EDGE ,  Lenaig Genevieve CHAPONNIERE ,  Osama LOTFALLAH ,  Bharat SHRESTHA

IPC: H04W48/18 ,  H04W48/16 ,  H04W48/04

Abstract: Certain aspects of the present disclosure provide techniques for performing a public land mobile network (PLMN) selection procedure based on allowed PLMN(s) in a particular country of a user equipment (UE). An example method generally includes determining a country in which the UE is located, creating a list of available PLMNs, that are allowed to be selected in the country in which the UE is located, for access to a non-terrestrial network (NTN), and performing a PLMN selection procedure for access to the NTN based on the list of available PLMNs and the country in which the UE is located.

公开(公告)号：US20210329536A1

公开(公告)日：2021-10-21

申请号：US17232041

申请日：2021-04-15

Applicant: QUALCOMM Incorporated

Inventor： Osama LOTFALLAH ,  Amer CATOVIC ,  Liangchi HSU ,  Lenaig Genevieve CHAPONNIERE ,  Arvind Vardarajan SANTHANAM

IPC: H04W48/04 ,  H04W48/08 ,  H04W76/38

Abstract: The present disclosure relates to a user equipment (UE) dynamically adjusting a non-access stratum (NAS) timer. Specifically, the UE may determine operation in a wideband and support of an extended coverage (EC) restriction. The UE may further identify a duration of a non-access stratum (NAS) timer based on determining operation in the wideband and the EC restriction. The UE may further transmit an access request message to a network entity to trigger a mobility management procedure. The UE may further receive an acceptance message from the network entity indicating an unrestricted or restricted status of the EC restriction. The UE may further apply the duration to the NAS timer based on the acceptance message indicating the unrestricted or restricted status of the EC restriction received from the network entity or a history of EC restrictions of a public land mobile network (PLMN) in a defined geographic area.

公开(公告)号：US20250133463A1

公开(公告)日：2025-04-24

申请号：US18489987

申请日：2023-10-19

Applicant: QUALCOMM Incorporated

Inventor： Sohrab AHMAD ,  Raghuveer Ramakrishna Srinivas TARIMALA ,  Bhanu Kiran JANGA ,  Rishika TINDOLA ,  Abhishek BHATNAGAR ,  Arvind Vardarajan SANTHANAM ,  Osama LOTFALLAH ,  Abhijeet PRASAD ,  Simon ISSAKOV

IPC: H04W36/14 ,  H04W36/32

Abstract: Certain aspects of the present disclosure provide techniques for selecting a public land mobile network (PLMN) based on route information. A method that may be performed by a wireless node includes camping on a first cellular network on a first frequency band of one or more first frequency bands associated with a first mobile country code (MCC) of a planned route of the wireless node; detecting a condition with the first cellular network after the camping on the first cellular network; and searching, after detecting the condition, for service on the one or more first frequency bands and one or more second frequency bands associated with a second MCC, wherein the one or more second frequency bands are selected based on the first MCC and the planned route.

公开(公告)号：US20230011024A1

公开(公告)日：2023-01-12

申请号：US17650435

申请日：2022-02-09

Applicant: QUALCOMM Incorporated

Inventor： Adam HEBEIN ,  Qin Xue FRANTTI ,  Brian A'HEARN ,  Rishav REJ ,  Qingxin CHEN ,  Uttam PATTANAYAK ,  Vikram SINGH ,  Bhupesh Manoharlal UMATT ,  Carlos Marcelo Dias PAZOS ,  Osama LOTFALLAH ,  Flora Pui San CHAN ,  Manisha PRIYADARSHINI ,  Abhishek BHATNAGAR ,  Reza SHAHIDI ,  Cheol Hee PARK

IPC: H04W48/16 ,  H04W8/18 ,  H04W52/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect that a first subscription, of a plurality of subscriptions associated with the UE, is associated with an active service on a first cellular network. The UE may search, for a second subscription of the plurality of subscriptions, for radio access technologies (RATs) and frequency bands that are compatible with a dual active mode of the UE. In some aspects, the UE may detect that the active service on the first cellular network has ended. Accordingly, the UE may search, for the second subscription, for RATs and frequency bands that are compatible with the dual active mode of the UE and for RATs and frequency bands that are incompatible with the dual active mode, before expiry of a timer associated with a power saving state. Numerous other aspects are described.

公开(公告)号：US20210360565A1

公开(公告)日：2021-11-18

申请号：US17322186

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Mona AGRAWAL ,  Haris ZISIMOPOULOS ,  Arvind Vardarajan SANTHANAM ,  Lenaig Genevieve CHAPONNIERE ,  Gavin Bernard HORN ,  Masato KITAZOE ,  Osama LOTFALLAH

IPC: H04W60/00 ,  H04W76/10 ,  H04W68/00

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for optimizing procedures to update a UE radio capability ID (URCID) when a UE moves to a new Public Land Mobile Network (PLMN) within a registration area. The techniques may help avoid unnecessary signaling traffic and reduce UE power consumption. An example method performed by a user equipment (UE) generally includes receiving at least one URCID assigned by a first PLMN; and taking one or more actions to delay or avoid updating the URCID when moving to a second PLMN in a same registration area as the first PLMN.