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：US20210100040A1

公开(公告)日：2021-04-01

申请号：US17032434

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ashish BHARDWAJ ,  Liangchi HSU ,  Sohrab AHMAD ,  Raghuveer Ramakrishna Srinivas TARIMALA ,  Manjunatha Subbamma ANANDA ,  Utsav SINHA ,  Kavinkadhirselvan ANGAPPAN ,  Bhanu Kiran JANGA

IPC: H04W74/08 ,  H04W76/27 ,  H04L1/18

Abstract: Disclosed are techniques for handling collisions between multiple radio resource control (RRC) connection establishment procedures for multiple connection events, such as mobile terminating pages and tracking area updates.

公开(公告)号：US20230319690A1

公开(公告)日：2023-10-05

申请号：US17654788

申请日：2022-03-14

Applicant: QUALCOMM Incorporated

Inventor： Harish REDDY KOTHAKAPU ,  Bhanu Kiran JANGA ,  Sohrab AHMAD

IPC: H04W48/16

CPC classification number: H04W48/16 ,  H04W84/042

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for a scan reduction associated with legacy RATs. A UE may receive, from a database, an indication that a first RAT is unavailable for communications associated with a PLMN. The indication that the first RAT is unavailable may be based on one or more unsuccessful scans for the first RAT. The UE may scan for a second RAT based on a skipped scan for the first RAT. The skipped scan may be based on the indication that the first RAT is unavailable. The UE may communicate with the PLMN based on the scan for the second RAT and the skipped scan for the first RAT.

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：US20190150042A1

公开(公告)日：2019-05-16

申请号：US16184639

申请日：2018-11-08

Applicant: QUALCOMM Incorporated

Inventor： Ankur SRIVASTAVA ,  Kishore Kumar YANNAKULA ,  Suresh SANKA ,  Ajit GUPTA ,  Bhanu Kiran JANGA

IPC: H04W36/08 ,  H04W36/36 ,  H04W36/12 ,  H04W36/00

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive a priority list associated with preferred radio frequencies from a serving base station. In certain aspects, each radio frequency of the preferred radio frequencies associated with a first set of base station may operate on a first RAT. In certain other aspects, the apparatus may determine if the UE is able to reselect to the first RAT. In certain other aspects, the apparatus may perform a rank-based cell reselection procedure based on signal strength when the UE is unable to reselect to the first RAT.

公开(公告)号：US20170111512A1

公开(公告)日：2017-04-20

申请号：US15270624

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Harish REDDY KOTHAKAPU ,  Bhanu Kiran JANGA ,  Ajit GUPTA ,  Venkatesh Savithri MAHESH ,  Guatam Kumar GUPTA ,  Raju KASARAMONI

IPC: H04M7/00 ,  H04W76/02 ,  H04L29/06

CPC classification number: H04W76/16 ,  H04L65/1016 ,  H04L65/1069 ,  H04W48/18

Abstract: Aspects of the present disclosure provide an apparatus and techniques for wireless communication by a user equipment (UE), such as placing a video telephony (VT) call when a user equipment (UE) is camped on a non-Internet Protocol Multimedia Subsystem (IMS) network, such as a non-IMS Long Term Evolution (LTE) network. The UE may be in a coverage area of a first radio access technology (RAT) supported by a first standard, and in a coverage area of a second RAT supported by a second standard. The UE may determine the LTE network does not support IMS services. In response to the determination, the UE may take one or more actions to place a VT call using the second RAT which supports IMS services.

公开(公告)号：US20160112907A1

公开(公告)日：2016-04-21

申请号：US14616583

申请日：2015-02-06

Applicant: QUALCOMM Incorporated

Inventor： Thawatt GOPAL ,  Reza SHAHIDI ,  Mungal Singh DHANDA ,  Thiagarajan SIVANADYAN ,  Bhanu Kiran JANGA ,  Zhang ZHOU ,  Tom CHIN

IPC: H04W36/00

CPC classification number: H04W36/0072 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20 ,  H04W88/02 ,  H04W88/06

Abstract: User equipment (UE) based pseudo-reselection occurs from a first wireless cell to a second wireless cell. A UE autonomously discovers candidate reselection frequencies and autonomously sets reselection thresholds. The UE perform cell reselection based on the discovered candidate cell reselection frequencies and the autonomously set thresholds.

Abstract translation: 基于用户设备（UE）的伪重选从第一无线小区发生到第二无线小区。 UE自主地发现候选重选频率并自主设置重选阈值。 UE基于所发现的候选小区重选频率和自主设置的阈值来执行小区重选。