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公开(公告)号：US09456395B2
公开(公告)日：2016-09-27
申请号：US13767718
申请日：2013-02-14
Applicant: QUALCOMM Incorporated
Inventor： Shivratna Giri Srinivasan , Supratik Bhattacharjee
CPC classification number: H04W36/14 , H04W36/0022 , H04W36/16 , H04W36/24 , H04W48/16 , H04W60/005 , H04W68/00 , H04W88/06
Abstract: Methods and apparatus for resuming operations with an LTE network are described. One example method generally includes suspending operations with a base station of a first radio access technology (RAT) network (e.g., LTE network), tuning to a second RAT network (e.g., 1x network) to monitor for paging messages targeting the UE, and determining whether or not to resume operations with the base station of the first RAT network without performing system acquisition based, at least in part, on how much time has elapsed since suspending operations.
Abstract translation: 描述了使用LTE网络恢复操作的方法和装置。 一个示例性方法通常包括使用第一无线电接入技术（RAT）网络（例如，LTE网络）的基站进行暂停操作，调谐到第二RAT网络（例如，1x网络）以监视针对UE的寻呼消息，以及 至少部分地基于从暂停操作起已经经过了多少时间，来确定是否在不执行系统获取的情况下恢复与第一RAT网络的基站的操作。
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公开(公告)号：US09860804B2
公开(公告)日：2018-01-02
申请号：US14537563
申请日：2014-11-10
Applicant: QUALCOMM Incorporated
Inventor： Yongle Wu , Vishu Kumar , Amit Mahajan , Udayan Murli Bhawnani , Won-Joon Choi , Shivratna Giri Srinivasan , Osama Nafeth Saleem Alrabadi , Dominique Francois Bressanelli , Marian Madan , Mohamed Khalifa , Florina Andreea Prisecaru
CPC classification number: H04W36/0088 , H04W24/10 , H04W76/28 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/24
Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.
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公开(公告)号：US20130122841A1
公开(公告)日：2013-05-16
申请号：US13670580
申请日：2012-11-07
Applicant: Qualcomm Incorporated
Inventor： Shivratna Giri Srinivasan , Raghu Narayan Challa , Supratik Bhattacharjee , Brian Clarke Banister
IPC: H04W56/00
CPC classification number: H04W56/00 , H04B1/7083 , H04J11/0069 , H04L27/2663
Abstract: Methods and apparatus for determining a reference sequence and timing based on normalized correlations are described. One example method generally includes receiving, at a first antenna of an apparatus, a first signal comprising a reference sequence; receiving, at a second antenna of the apparatus, a second signal comprising the same reference sequence; sampling the first and second signals to form first and second signal sequences; correlating the first and second signal sequences with each of one or more candidate sequences for the reference sequence using normalization; and determining the reference sequence and timing for the first and second signals based on the normalized correlations.
Abstract translation: 描述了基于归一化相关性来确定参考序列和定时的方法和装置。 一个示例性方法通常包括在装置的第一天线处接收包括参考序列的第一信号; 在装置的第二天线处接收包括相同参考序列的第二信号; 对第一和第二信号进行采样以形成第一和第二信号序列; 使用归一化将第一和第二信号序列与用于参考序列的一个或多个候选序列中的每一个相关; 以及基于所述归一化相关性来确定所述第一和第二信号的参考序列和定时。
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公开(公告)号：US20130121188A1
公开(公告)日：2013-05-16
申请号：US13671877
申请日：2012-11-08
Applicant: QUALCOMM INCORPORATED
IPC: H04W56/00
CPC classification number: H04W56/00 , H04J11/0073 , H04J11/0076 , H04L27/0014 , H04L27/261 , H04L27/2657 , H04L27/2675 , H04L2027/0034 , H04L2027/0036
Abstract: Certain aspects of the present disclosure relate to a technique for estimating a frequency offset of a local oscillator using primary synchronization signal (PSS) and secondary synchronization signal (SSS) while initially acquiring a long term evolution (LTE) signal. In certain aspects, a frequency offset estimation procedure may include PSS-based frequency offset estimation and SSS-based frequency offset refinement. The PSS-based frequency offset estimation may include determining a suitable reference PSS and using the ascertained reference PSS to estimate a PSS-based frequency offset. The SSS-based frequency offset refinement may include determining a suitable reference SSS using the PSS based frequency offset and using the ascertained reference SSS to refine PSS-based frequency offset from the PSS-based frequency offset estimation.
Abstract translation: 本公开的某些方面涉及在初始获取长期演进（LTE）信号的同时使用主同步信号（PSS）和辅同步信号（SSS）来估计本地振荡器的频率偏移的技术。 在某些方面，频率偏移估计过程可以包括基于PSS的频偏估计和基于SSS的频偏修正。 基于PSS的频率偏移估计可以包括确定合适的参考PSS并且使用确定的参考PSS来估计基于PSS的频率偏移。 基于SSS的频率偏移精化可以包括使用基于PSS的频率偏移来确定合适的参考SSS，并且使用所确定的参考SSS来从基于PSS的频率偏移估计来精简基于PSS的频率偏移。
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5.发明授权公开(公告)号：US09408221B2
公开(公告)日：2016-08-02
申请号：US13786907
申请日：2013-03-06
Applicant: QUALCOMM Incorporated
Inventor： Shengshan Cui , Brandon Allen Burdge , Shivratna Giri Srinivasan , Brian Clarke Banister , Supratik Bhattacharjee , Raghu Narayan Challa
IPC: H04W72/08 , H04L1/00 , H04W24/10 , H04W36/14 , H04L1/18 , H04B17/309 , H04B17/382
CPC classification number: H04W72/08 , H04B17/309 , H04B17/382 , H04L1/0025 , H04L1/0027 , H04L1/1812 , H04W24/10 , H04W36/14
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for Channel Quality Indicator (CQI) reporting after resumption of Long Term Evolution (LTE) after a temporary suspension. In certain aspects, in order to minimize performance penalty to LTE on resumption after an LTE tune away for example to service a different Radio Access Technology, information available from before the LTE tune away may be used in addition to one or more additional parameters for determining how to perform LTE CQI calculation/update after tuning back to LTE. In certain aspects, a decision regarding whether a User Equipment (UE) reports a CQI based on channel conditions before the LTE tune away or reports a CQI based on channel conditions after tuning back to LTE may be based on a value of the Doppler estimate, a time duration of the LTE tune away, or a combination thereof.
Abstract translation: 本公开的某些方面涉及在临时暂停之后恢复长期演进（LTE）之后的信道质量指示符（CQI）报告的方法和装置。 在某些方面，为了在LTE调离后例如为了服务不同的无线电接入技术而恢复LTE时的性能损失最小化，除了用于确定的一个或多个附加参数之外，还可以使用从LTE调离之前可用的信息 如何在调谐回LTE后执行LTE CQI计算/更新。 在某些方面，关于用户设备（UE）是否在LTE调出之前基于信道状况报告CQI或者在回调到LTE之后基于信道状况报告CQI的决定可以基于多普勒估计值， LTE调谐的持续时间或其组合。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20130272218A1
公开(公告)日：2013-10-17
申请号：US13786907
申请日：2013-03-06
Applicant: QUALCOMM INCORPORATED
Inventor： Shengshan Cui , Brandon Allen Burdge , Shivratna Giri Srinivasan , Brian Clarke Banister , Supratik Bhattacharjee , Raghu Narayan Challa
IPC: H04W72/08
CPC classification number: H04W72/08 , H04B17/309 , H04B17/382 , H04L1/0025 , H04L1/0027 , H04L1/1812 , H04W24/10 , H04W36/14
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for Channel Quality Indicator (CQI) reporting after resumption of Long Term Evolution (LTE) after a temporary suspension. In certain aspects, in order to minimize performance penalty to LTE on resumption after an LTE tune away for example to service a different Radio Access Technology, information available from before the LTE tune away may be used in addition to one or more additional parameters for determining how to perform LTE CQI calculation/update after tuning back to LTE. In certain aspects, a decision regarding whether a User Equipment (UE) reports a CQI based on channel conditions before the LTE tune away or reports a CQI based on channel conditions after tuning back to LTE may be based on a value of the Doppler estimate, a time duration of the LTE tune away, or a combination thereof.
Abstract translation: 本公开的某些方面涉及在临时暂停之后恢复长期演进（LTE）之后的信道质量指示符（CQI）报告的方法和装置。 在某些方面，为了在LTE调离后例如为了服务不同的无线电接入技术而恢复LTE时的性能损失最小化，除了用于确定的一个或多个附加参数之外，还可以使用从LTE调离之前可用的信息 如何在调谐回LTE后执行LTE CQI计算/更新。 在某些方面，关于用户设备（UE）是否在LTE调出之前基于信道状况报告CQI或者在回调到LTE之后基于信道状况报告CQI的决定可以基于多普勒估计值， LTE调谐的持续时间或其组合。
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公开(公告)号：US20130215869A1
公开(公告)日：2013-08-22
申请号：US13767718
申请日：2013-02-14
Applicant: Qualcomm Incorporated
Inventor： Shivratna Giri Srinivasan , Supratik Bhattacharjee
IPC: H04W36/14
CPC classification number: H04W36/14 , H04W36/0022 , H04W36/16 , H04W36/24 , H04W48/16 , H04W60/005 , H04W68/00 , H04W88/06
Abstract: Methods and apparatus for resuming operations with an LTE network are described. One example method generally includes suspending operations with a base station of a first radio access technology (RAT) network (e.g., LTE network), tuning to a second RAT network (e.g., 1x network) to monitor for paging messages targeting the UE, and determining whether or not to resume operations with the base station of the first RAT network without performing system acquisition based, at least in part, on how much time has elapsed since suspending operations.
Abstract translation: 描述了使用LTE网络恢复操作的方法和装置。 一个示例性方法通常包括使用第一无线电接入技术（RAT）网络（例如，LTE网络）的基站进行暂停操作，调谐到第二RAT网络（例如，1x网络）以监视针对UE的寻呼消息，以及 至少部分地基于从暂停操作起已经经过了多少时间，来确定是否在不执行系统获取的情况下恢复与第一RAT网络的基站的操作。
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公开(公告)号：US09265086B2
公开(公告)日：2016-02-16
申请号：US14503886
申请日：2014-10-01
Applicant: QUALCOMM Incorporated
Inventor： Yongle Wu , Muralidharan Murugan , Nitin Pant , Daniel Amerga , Shivratna Giri Srinivasan , Srivatsa Venkata Chivukula , Raghu Hanumantha Gowda , Kiran Patil , Sandeep Kumar Sunkesala , Gilbert Anpei Fu
CPC classification number: H04W76/046 , H04L41/0659 , H04L43/0811 , H04W36/08 , H04W48/02 , H04W76/18 , H04W76/19 , H04W76/27
Abstract: Methods and apparatus for enhanced radio resource control (RRC) reestablishment in a communication system include addressing repeated radio link failures (RLFs). For example, the methods and apparatus include incrementing a counter value associated with a first cell based on a detection of a RLF by a user equipment (UE) in a RRC connected state with the first cell. The methods and apparatus further include determining that the counter value meets or exceeds a first barring threshold value within a cell barring evaluation time duration. Additionally, the methods and apparatus include prohibiting the UE from performing an RRC reestablishment procedure with the first cell for a first barring time duration.
Abstract translation: 在通信系统中用于增强无线电资源控制（RRC）重建的方法和装置包括寻址重复的无线电链路故障（RLF）。 例如，所述方法和装置包括基于在与第一小区的RRC连接状态下的用户设备（UE）的RLF的检测来增加与第一小区相关联的计数器值。 所述方法和装置还包括确定计数器值在单元格禁止评估持续时间内满足或超过第一限制阈值。 此外，所述方法和装置包括禁止UE与第一小区一起执行RRC重建过程以进行第一限制时间。
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公开(公告)号：US09185614B2
公开(公告)日：2015-11-10
申请号：US13671017
申请日：2012-11-07
Applicant: QUALCOMM Incorporated
IPC: H04L12/26 , H04W36/00 , H04B17/309 , H04B17/318 , H04W24/10
CPC classification number: H04W36/0083 , H04B17/309 , H04B17/318 , H04W24/10 , H04W36/0088
Abstract: Methods and apparatus for computing measurement metrics in a wireless communications network are provided. One example method generally includes obtaining a channel impulse response (CIR) from one or more reference signals (RSs) transmitted from one or more antennas of a base station (BS); calculating an absolute square per element of the CIR to generate channel energy response (CER) elements; calculating a threshold value based on a noise variance estimated from a portion of the CER elements; selecting CER elements that exceed the threshold value; and computing a reference signal received power (RSRP) value based on the selected CER elements.
Abstract translation: 提供了用于计算无线通信网络中的测量度量的方法和装置。 一个示例性方法通常包括从从基站（BS）的一个或多个天线发送的一个或多个参考信号（RS）获得信道脉冲响应（CIR）; 计算CIR的每个元素的绝对平方，以产生信道能量响应（CER）元素; 基于从所述CER元素的一部分估计的噪声方差来计算阈值; 选择超过阈值的CER元素; 以及基于所选择的CER元素计算参考信号接收功率（RSRP）值。
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公开(公告)号：US20130251013A1
公开(公告)日：2013-09-26
申请号：US13784556
申请日：2013-03-04
Applicant: QUALCOMM INCORPORATED
Inventor： Brian Clarke Banister , Shivratna Giri Srinivasan , Yuanning Yu
IPC: H04B1/16
CPC classification number: H04B1/16 , H04L1/0054 , H04L1/1816 , H04L1/1829 , H04L1/1845 , H04L25/03318
Abstract: Dynamic receiver switching is implemented by a receiving device that selects a first receiver having operating characteristics associated with a first optimal operating region to decode one or more first transmissions. The receiving device then selects a second receiver to decode subsequent transmissions. The second receiver has operating characteristics and an optimal operating region that are different from those of the receiver.
Abstract translation: 动态接收机切换由接收设备实现，该接收设备选择具有与第一最佳操作区域相关联的操作特征的第一接收机来解码一个或多个第一传输。 然后，接收设备选择第二接收机来解码随后的传输。 第二接收机具有不同于接收机的操作特性和最佳操作区域。
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