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公开(公告)号：US11265839B2
公开(公告)日：2022-03-01
申请号：US17079232
申请日：2020-10-23
Applicant: Apple Inc.
Inventor： Rohit R. Matolia , Vijay Venkataraman , Alosious Pradeep Prabhakar , Lakshmi N. Kavuri , Srinivasan Vasudevan , Vijay Kumar Jha
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to avoid invalidation of a subscriber identity module (SIM). A UE may initiate a connection with the network. The network may reject the connection attempt. The UE may selectively determine whether to invalidate the SIM, network, or both. The UE may consider various factors such as details of the connection rejection message, identity of the network, its relationship to the network (e.g., whether the network is a preferred network, etc.), a number of connection rejections received, time remaining on one or more timers, availability of other networks, etc.
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公开(公告)号：US20210297844A1
公开(公告)日：2021-09-23
申请号：US17181736
申请日：2021-02-22
Applicant: Apple Inc.
Inventor： Alosious Pradeep Prabhakar , Vijay Venkataraman , Rohit R. Matolia , Krisztian Kiss , Srinivasan Nimmala
Abstract: A user equipment (UE) may receive a list of Public Land Mobile Networks (PLMNs) that support a given network slice in a given country, different from a home country of a home PLMN of the UE. When roaming in the given country, UE may access a PLMN of the list if the given network slice is desired. The list may be provided by the home PLMN: while the UE is in the home country; or via a visited PLMN while the UE is in the given country. The list may be received in response to a UE-initiated request, or pushed to the UE by the home PLMN. A validity timer period received with the list may indicate a duration of validity of the list. In an alternative scenario, the UE may receive the list from an entitlement server, e.g., one belonging to a visited PLMN.
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公开(公告)号：US11096232B2
公开(公告)日：2021-08-17
申请号：US16553427
申请日：2019-08-28
Applicant: Apple Inc.
Inventor： Fangli Xu , Rohit R. Matolia , Vijay Venkataraman , Dawei Zhang , Haijing Hu , Yuqin Chen , Sethuraman Gurumoorthy , Srirang A. Lovlekar , Murtaza A. Shikari , Sree Ram Kodali , Srinivasan Nimmala , Xu Ou , Longda Xing
Abstract: This disclosure relates to techniques for efficiently handling connection rejections. A wireless device may detect barring conditions in response to receiving one or more connection rejections. The wireless device may bar one or more connections based on the barring conditions, and may attempt to access network services over one or more other connections.
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公开(公告)号：US20200304984A1
公开(公告)日：2020-09-24
申请号：US16362230
申请日：2019-03-22
Applicant: Apple Inc.
Inventor： Muthukumaran Dhanapal , Vijay Venkataraman , Lakshmi N. Kavuri , Srinivasan Nimmala , Rangakrishna Nallandigal , Alosious Pradeep Prabhakar , Tsun Sang Cheong , Rohit R. Matolia , Yaoqi Yan , Chaitanya R. Kaliki , Navjot Thakral , Ajinkya Satish Godbole
Abstract: Apparatuses, systems, and methods for a dual subscriber identity module (SIM) dual standby (DSDS) capable user equipment (UE) devices to perform data operations with a first SIM that is not capable of or preferred for packet switched (PS) services and a second SIM that is capable of or preferred for PS services. A timer may be initiated upon radio frequency (RF) chain handover from the first SIM to the second SIM, whereupon a first connection associated with the first SIM is maintained in an idle state while the timer is running. Upon expiration of the timer, the UE may determine whether to send a scheduling request to maintain or release the first connection. The timer may be utilized when a call is dropped over the first connection, to increase the likelihood of successfully receiving a callback. The timer may be shortened in duration to reduce reception of spam messaging.
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