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公开(公告)号：US10045287B1
公开(公告)日：2018-08-07
申请号：US15592327
申请日：2017-05-11
Applicant: Apple Inc.
Inventor： Lakshmi N. Kavuri , Jianxiong Shi , Srinivasan Nimmala , Viswanath Nagarajan , Yifan Zhu
Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to perform more efficient frequency scans for potential base stations. According to techniques described herein, the UE may, in response to detecting that UE does not have cellular service, perform a full band scan to search for a last registered public land mobile network (PLMN) and the full band scan may discover one or more cells not associated with the last registered PLMN. The UE may populate a database with one or more parameters associated with the one or more cells and in response to not finding the last registered PLMN, perform a targeted scan limited to a set of PLMNs found during the full band scan. In some embodiments, each PLMN in the set of PLMNs may be comprised in a roaming PLMN list for an operator.
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公开(公告)号：US20140080479A1
公开(公告)日：2014-03-20
申请号：US13860406
申请日：2013-04-10
Applicant: Apple Inc.
Inventor： Sarma V. Vangala , Swaminathan Balakrishnan , Chandra S. Chetty , Viswanath Nagarajan , Vikram B. Yerrabommanahalli
CPC classification number: H04W24/02 , H04W36/0088 , H04W76/16 , H04W76/19 , H04W76/27 , H04W76/38 , H04W88/06
Abstract: Methods and apparatus for suspending session state during hybrid network operation. In one exemplary embodiment, a cellular device uses a single-radio solution to support circuit-switched calls on a CDMA 1× network and packet-switched calls on LTE. Periodically, the cellular device tunes away from LTE and monitors CDMA 1× activity, and vice versa. During these tuned-away periods, the client device may suspend operation on the tuned away network for extended tune away intervals.
Abstract translation: 混合网络运行中暂停会话状态的方法和装置。 在一个示例性实施例中，蜂窝设备使用单无线电解决方案来支持CDMA 1×网络上的电路交换呼叫和LTE上的分组交换呼叫。 周期性地，蜂窝设备调谐远离LTE并监视CDMA 1×活动，反之亦然。 在这些调谐期间，客户端设备可以暂停在被调谐的网络上的操作，以延长离开间隔。
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