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公开(公告)号：US10390308B2
公开(公告)日：2019-08-20
申请号：US15698723
申请日：2017-09-08
Applicant: Apple Inc.
Inventor： Srinivas Burugupalli , Venkateswara Rao Manepalli
Abstract: Systems, apparatuses, and methods for messaging improvements in link budget limited devices. A link budget limited device may be configured to suppress or delay tracking area update messages in various situations. Additionally, or alternatively, the link budget limited device may be configured to transition to idle mode instead of performing handover or recovery from radio link failure when the target base station has a signal quality less than a threshold. Additionally, or alternatively, the link budget limited device may be configured to suppress or delay measurement reports in poor signal quality conditions.
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公开(公告)号：US20190239254A1
公开(公告)日：2019-08-01
申请号：US16376370
申请日：2019-04-05
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Venkateswara Rao Manepalli
Abstract: Mechanisms enabling link-budget-limited (LBL) devices to more effectively perform random access may include: (1) broadcasting a Physical Random Access Channel (PRACH) configuration index (PCI) reserved for LBL devices; (2) configuring LBL devices to use a PCI that is offset from the conventional PCI of current cell; (3) configuring LBL devices to transmit PRACH messages using an alternative set of subframes, different from conventionally-defined subframe set; (4) configuring LBL devices to transmit PRACH messages on odd frames when the conventional PRACH configuration specifies even frames; (5) configuring LBL devices to generate and use extra PRACH preambles that are not used by non-LBL devices; (6) configuring LBL devices to use group B preambles while non-LBL devices are configured to use group A preambles; and (7) boosting power of a random access response message after an Nth random access failure with preamble conforming to an LBL-reserved pattern of preambles.
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公开(公告)号：US20190239185A1
公开(公告)日：2019-08-01
申请号：US16378605
申请日：2019-04-09
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Venkateswara Rao Manepalli , Srinivas Burugupalli , Srinivasan Nimmala , Vijay Kumar Ramamurthi , Stephan V. Schell
CPC classification number: H04W68/005 , H04W64/003 , H04W68/02 , H04W72/0446 , H04W72/048 , H04W76/28
Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.
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公开(公告)号：US10187752B2
公开(公告)日：2019-01-22
申请号：US15596592
申请日：2017-05-16
Applicant: Apple Inc.
Inventor： Venkateswara Rao Manepalli , Vijay Kumar Ramamurthi , Jianxiong Shi , Madhusudan Chaudhary , Srinivasan Nimmala , Srinivas Burugupalli
IPC: H04W36/00 , H04W4/02 , H04W84/04 , H04W88/02 , H04B1/3827
Abstract: Some embodiments relate to a user equipment device (UE), and associated methods for enabling the UE to estimate velocity of the UE based on cellular parameters. In some embodiments, a first velocity of a UE may be estimated based on a first set of parameters associated with one or more cellular based metrics. Doppler measurements may be performed in response to the first velocity exceeding a velocity threshold for at least a time period. In some embodiments, performing (or conducting) the Doppler measurements may be triggered by (e.g., in response to) the first velocity exceeding the velocity threshold for at least the first time period and receiving an indication from a motion processor of the UE that the UE is in a non-static state. In addition, a second velocity of the UE may be estimated based on the first set of parameters and the Doppler measurements.
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公开(公告)号：US20180338222A1
公开(公告)日：2018-11-22
申请号：US15596592
申请日：2017-05-16
Applicant: Apple Inc.
Inventor： Venkateswara Rao Manepalli , Vijay Kumar Ramamurthi , Jianxiong Shi , Madhusudan Chaudhary , Srinivasan Nimmala , Srinivas Burugupalli
IPC: H04W4/02
CPC classification number: H04W4/027 , H04B1/385 , H04W84/042 , H04W88/02
Abstract: Some embodiments relate to a user equipment device (UE), and associated methods for enabling the UE to estimate velocity of the UE based on cellular parameters. In some embodiments, a first velocity of a UE may be estimated based on a first set of parameters associated with one or more cellular based metrics. Doppler measurements may be performed in response to the first velocity exceeding a velocity threshold for at least a time period. In some embodiments, performing (or conducting) the Doppler measurements may be triggered by (e.g., in response to) the first velocity exceeding the velocity threshold for at least the first time period and receiving an indication from a motion processor of the UE that the UE is in a non-static state. In addition, a second velocity of the UE may be estimated based on the first set of parameters and the Doppler measurements.
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Patent Agency Ranking
公开(公告)号：US10085213B1
公开(公告)日：2018-09-25
申请号：US15595465
申请日：2017-05-15
Applicant: APPLE INC.
Inventor： Srinivasan Nimmala , Srirang A. Lovlekar , Venkateswara Rao Manepalli , Sami M. Almalfouh , Li Su , Jianxiong Shi , Daniel D. Schucker , Ajoy K. Singh , Vijay Venkataraman
CPC classification number: H04W52/0229 , G06F1/1698 , H04W52/0261 , Y02D70/00 , Y02D70/10 , Y02D70/12 , Y02D70/126 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/21 , Y02D70/23 , Y02D70/24 , Y02D70/26
Abstract: A device, system, and method uses a high power mode for a cellular connection. The method is performed at a device that is configured to establish a network connection to a network. The method includes detecting a number of at least one event that has occurred over a time period, the at least one event associated with operations used through the network connection, the at least one event indicative of a power to perform the operations that is greater than a predetermined power. When the number is at least a predetermined threshold, the method includes identifying the network connection as being in a high power state. The method includes activating settings when the network connection is in the high power state, the settings reducing a usage of the operations over the network connection.
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公开(公告)号：US10051682B2
公开(公告)日：2018-08-14
申请号：US15290908
申请日：2016-10-11
Applicant: Apple Inc.
Inventor： Sarma V. Vangala , Tarik Tabet , Venkateswara Rao Manepalli , Madhusudan Chaudhary , Faraz Faheem , Syed Aon Mujtaba , Jianxiong Shi , Sreevalsan Vallath
CPC classification number: H04W76/27 , H04L1/1832 , H04W28/0268 , H04W40/005 , H04W72/1242 , H04W84/042 , H04W88/02
Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.
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公开(公告)号：US10051473B2
公开(公告)日：2018-08-14
申请号：US15671614
申请日：2017-08-08
Applicant: Apple Inc.
Inventor： Venkateswara Rao Manepalli , Srinivasan Nimmala , Farouk Belghoul
Abstract: This disclosure relates to techniques for securely performing connection release and network redirection in a wireless communication system. A wireless device may establish a radio resource control (RRC) connection with a first cell. The wireless device may receive a RRC connection release message from the first cell. The RRC connection release message may include an indication to redirect the wireless device to a second cell. The RRC connection with the first cell may be released. It may be determined whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received. A new serving cell may be selected based at least in part on whether security has been established with the first cell when the indication to redirect the wireless device to the second cell is received.
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公开(公告)号：US20170034869A1
公开(公告)日：2017-02-02
申请号：US15290908
申请日：2016-10-11
Applicant: Apple Inc.
Inventor： Sarma V. Vangala , Tarik Tabet , Venkateswara Rao Manepalli , Madhusudan Chaudhary , Faraz Faheem , Syed Aon Mujtaba , Jianxiong Shi , Sreevalsan Vallath
CPC classification number: H04W76/27 , H04L1/1832 , H04W28/0268 , H04W40/005 , H04W72/1242 , H04W84/042 , H04W88/02
Abstract: This disclosure relates to techniques for scheduling radio resource control connections between a wireless device and a network element of a network in advance. According to some embodiments, a wireless device may provide an indication of one or more types of upcoming data traffic to the network element. The network element may schedule one or more radio resource control connections for the wireless device based at least in part on the indication of one or more types of upcoming data traffic. The network element may provide an indication of the scheduled radio resource control connection(s) to the wireless device. The wireless device and the network may establish the scheduled radio resource control connection at the scheduled time.
Abstract translation: 本公开涉及用于预先在无线设备和网络的网络元件之间调度无线电资源控制连接的技术。 根据一些实施例，无线设备可以向网络元件提供一种或多种类型的即将到来的数据业务的指示。 网络元件可以至少部分地基于一种或多种类型的即将到来的数据业务的指示来调度无线设备的一个或多个无线电资源控制连接。 网络元件可以向无线设备提供调度的无线电资源控制连接的指示。 无线设备和网络可以在预定时间建立调度的无线电资源控制连接。
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100.发明申请公开(公告)号：US20170019932A1
公开(公告)日：2017-01-19
申请号：US15201834
申请日：2016-07-05
Applicant: Apple Inc.
Inventor： Li Su , Sami M. Almalfouh , Venkateswara Rao Manepalli
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04H20/38 , H04J11/00 , H04L43/16 , H04W36/08 , H04W74/006 , H04W76/27 , H04W88/02 , H04W88/08
Abstract: Mechanisms enabling link-budget-limited (LBL) devices to more effectively perform random access may include: (1) broadcasting a Physical Random Access Channel (PRACH) configuration index (PCI) reserved for LBL devices; (2) configuring LBL devices to use a PCI that is offset from the conventional PCI of current cell; (3) configuring LBL devices to transmit PRACH messages using an alternative set of subframes, different from conventionally-defined subframe set; (4) configuring LBL devices to transmit PRACH messages on odd frames when the conventional PRACH configuration specifies even frames; (5) configuring LBL devices to generate and use extra PRACH preambles that are not used by non-LBL devices; (6) configuring LBL devices to use group B preambles while non-LBL devices are configured to use group A preambles; and (7) boosting power of a random access response message after an Nth random access failure with preamble conforming to an LBL-reserved pattern of preambles.
Abstract translation: 使链路限制（LBL）设备更有效地执行随机接入的机制可以包括：（1）广播为LBL设备预留的物理随机接入信道（PRACH）配置索引（PCI）; （2）将LBL设备配置为使用与当前单元的常规PCI相抵消的PCI; （3）使用不同于传统定义的子帧组的替代的一组子帧来配置LBL设备来发送PRACH消息; （4）当常规PRACH配置指定偶数帧时，配置LBL设备在奇数帧上发送PRACH消息; （5）配置LBL设备以生成和使用未被非LBL设备使用的额外的PRACH前导码; （6）将LBL设备配置为使用B组前导码，而将非LBL设备配置为使用A组前导码; 以及（7）在符合LBL预留的前导码模式的前导码的第N个随机接入故障之后提升随机接入响应消息的功率。
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