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公开(公告)号：US20190081843A1
公开(公告)日：2019-03-14
申请号：US16126832
申请日：2018-09-10
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Vaze , Hung Dinh Ly , Alexei Yurievitch Gorokhov , Nathan Yee , Hari Sankar , Raghu Narayan Challa
Abstract: Techniques are described herein that allow a user equipment (UE) to configure a subcarrier spacing value while monitoring synchronization signals of neighboring cells. In some wireless communication systems, synchronization signals in given radio frequency spectrum band may be transmitted using one of a plurality of different subcarrier spacings. In some cases, a network entity, such as a base station, may transmit an indication to the UE that indicates the subcarrier spacing used by a cell to transmit a specific set of synchronization signals. In some cases, the UE may select a subcarrier spacing based on a database of subcarrier spacings stored locally by the UE. In some cases, the UE may select the subcarrier spacing based on a predetermined configuration.
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公开(公告)号：US09872252B1
公开(公告)日：2018-01-16
申请号：US15459758
申请日：2017-03-15
Applicant: QUALCOMM Incorporated
Inventor： Peter Pui Lok Ang , Amir Aminzadeh Gohari , Alexei Yurievitch Gorokhov , Raghu Narayan Challa , Tingfang Ji , Krishna Kiran Mukkavilli , Ravi Agarwal , Joseph Binamira Soriaga , Hao Xu
CPC classification number: H04W52/0235 , H04W52/0216 , H04W52/0229 , H04W72/0406 , H04W76/28 , H04W88/02 , H04W88/08 , Y02D70/00
Abstract: Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.
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33.发明授权公开(公告)号：US09698927B2
公开(公告)日：2017-07-04
申请号：US14968189
申请日：2015-12-14
Applicant: QUALCOMM Incorporated
Inventor： Thomas Klingenbrunn , Lorenzo Casaccia , Bhupesh Manoharlal Umatt , Pradeep Sagane Gowda , Daniel Amerga , Shyamal Ramachandran , Muralidharan Murugan , Swaminathan Sureshchandran , Dinesh Dharmaraju , Sudhir S. Halbhavi , Vitaly Drapkin , Raghu Narayan Challa
CPC classification number: H04J4/005 , H04L5/0053 , H04W8/245 , H04W76/10 , H04W76/30
Abstract: Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.
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公开(公告)号：US09131389B2
公开(公告)日：2015-09-08
申请号：US13779691
申请日：2013-02-27
Applicant: QUALCOMM Incorporated
Inventor： Jun Won Choi , Raghu Narayan Challa
CPC classification number: H04W24/00 , H04L25/0224
Abstract: A method of wireless communication includes selecting three or more reference signal symbols from at least two subframes detected within a measurement window location during a connected mode gap. The selected reference signal symbols are selected from reference signal symbols of at least one non-MBSFN subframe and one reference signal symbol of a special subframe. The method also includes combining the selected reference signal symbols and estimating a reference signal received power (RSRP) based at least in part on a result of the combining.
Abstract translation: 无线通信的方法包括在连接的模式间隙期间从在测量窗口位置内检测到的至少两个子帧中选择三个或更多个参考信号符号。 选择的参考信号符号从至少一个非MBSFN子帧和特殊子帧的一个参考信号符号的参考信号符号中选择。 该方法还包括组合所选择的参考信号符号并且至少部分地基于组合的结果来估计参考信号接收功率（RSRP）。
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35.发明申请公开(公告)号：US20140270032A1
公开(公告)日：2014-09-18
申请号：US13829232
申请日：2013-03-14
Applicant: QUALCOMM INCORPORATED
Inventor： Li Liu , Praveen-Kumar Sampath , Lai Kan Leung , Chiewcharn Narathong , Soon-Seng Lau , Ketan Humnabadkar , Raghu Narayan Challa , Devavrata Vasant Godbole
CPC classification number: H04L7/0331 , H03B21/01 , H03D3/009 , H04W52/02 , H04W52/0209 , Y02D70/1222 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
Abstract: Techniques for detecting and correcting phase discontinuity of a local oscillator (LO) signal are disclosed. In one design, a wireless device includes an LO generator and a phase detector. The LO generator generates an LO signal used for frequency conversion and is periodically powered on and off. The phase detector detects the phase of the LO signal when the LO generator is powered on. The detected phase of the LO signal is used to identify phase discontinuity of the LO signal. The wireless device may further include (i) a single-tone generator that generates a single-tone signal used to detect the phase of the LO signal, (ii) a downconverter that downconverts the single-tone signal with the LO signal and provides a downconverted signal used by the phase detector to detect the phase of LO signal, and (iii) phase corrector that corrects phase discontinuity of the LO signal in the analog domain or digital domain.
Abstract translation: 公开了用于检测和校正本地振荡器（LO）信号的相位不连续性的技术。 在一种设计中，无线设备包括LO发生器和相位检测器。 LO发生器产生用于频率转换的LO信号，并且周期性地通电和关断。 当LO发生器通电时，相位检测器检测LO信号的相位。 LO信号的检测相位用于识别LO信号的相位不连续性。 无线设备还可以包括（i）生成用于检测LO信号的相位的单音信号的单音发生器，（ii）下变频器，其使用LO信号对单音信号进行下变频，并提供 相位检测器用于检测LO信号的相位的下变频信号，以及（iii）校正模拟域或数字域中的LO信号的相位不连续性的相位校正器。
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Patent Agency Ranking
公开(公告)号：US20130242820A1
公开(公告)日：2013-09-19
申请号：US13797907
申请日：2013-03-12
Applicant: QUALCOMM INCORPORATED
Inventor： Jun Won Choi , Huilin Xu , Raghu Narayan Challa
IPC: H04W72/04
CPC classification number: H04W72/042 , H04L27/0014 , H04L27/2657 , H04L27/2685 , H04L2027/0024 , H04L2027/0053 , H04L2027/0069
Abstract: A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed.
Abstract translation: 用于加速滤波器跟踪速度的方法包括至少部分地基于时分双工（TDD）或多媒体广播单频网络（MBSFN）系统中的上行链路/下行链路配置来缩放滤波器系数。 该方法还包括在至少一个下行链路子帧期间应用缩放的滤波器系数以控制滤波器跟踪速度。
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公开(公告)号：US20130223256A1
公开(公告)日：2013-08-29
申请号：US13779691
申请日：2013-02-27
Applicant: QUALCOMM Incorporated
Inventor： Jun Won Choi , Raghu Narayan Challa
IPC: H04W24/00
CPC classification number: H04W24/00 , H04L25/0224
Abstract: A method of wireless communication includes selecting three or more reference signal symbols from at least two subframes detected within a measurement window location during a connected mode gap. The selected reference signal symbols are selected from reference signal symbols of at least one non-MBSFN subframe and one reference signal symbol of a special subframe. The method also includes combining the selected reference signal symbols and estimating a reference signal received power (RSRP) based at least in part on a result of the combining.
Abstract translation: 无线通信的方法包括在连接的模式间隙期间从在测量窗口位置内检测到的至少两个子帧中选择三个或更多个参考信号符号。 选择的参考信号符号从至少一个非MBSFN子帧和特殊子帧的一个参考信号符号的参考信号符号中选择。 该方法还包括组合所选择的参考信号符号并且至少部分地基于组合的结果来估计参考信号接收功率（RSRP）。
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公开(公告)号：US12279245B2
公开(公告)日：2025-04-15
申请号：US17934974
申请日：2022-09-23
Applicant: QUALCOMM Incorporated
Inventor： Jun Zhu , Mihir Vijay Laghate , Raghu Narayan Challa
IPC: H04B7/0408 , H04B7/06 , H04B7/08 , H04B17/318 , H04B17/373 , H04B17/382 , H04W8/22 , H04W16/28 , H04W24/10 , H04W52/36 , H04W56/00 , H04W72/044 , H04W84/02 , H04W88/02 , H04W88/08 , H04W92/02 , H04W92/10
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first reference signal (RS). The UE may identify a set of UE beams based at least in part on signal strengths of the first RS as measured via at least one UE beam of the set of UE beams. The UE may transmit, based at least in part on the first RS, a report including an indication of a network node beam for communication with the UE, the indication based at least in part on a signal strength of the first RS using a first UE beam of the set of UE beams. The UE may receive a second RS using the set of UE beams. The UE may identify, based at least in part on the second RS, a second UE beam of the set of UE beams, identification based at least in part on a spectral efficiency associated with the second UE beam. The UE may communicate with the network node using the second UE beam. Numerous other aspects are described.
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公开(公告)号：US12279134B2
公开(公告)日：2025-04-15
申请号：US17866224
申请日：2022-07-15
Applicant: QUALCOMM Incorporated
Inventor： Jun Zhu , Yong Li , Hongbo Yan , Raghu Narayan Challa
IPC: H04W16/28 , H04B17/318 , H04B17/336 , H04W24/10 , H04W56/00 , H04W72/044 , H04W72/30
Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. Aspects of the described techniques may include the user equipment measuring signal aspects for a plurality of respective receive beams for receiving communications associated with a synchronization signal block transmitted by a base station on a transmit beam. From the measured signal aspects, the UE may determine that a receive beam from the plurality of receive beams is a preferred beam for receipt of communications from the base station transmitted on the transmit beam. With the determined preferred beam, the UE may initiate a beam-sweeping procedure to re-measure the plurality of UE receive beams, where the UE measures the first UE receive beam before measuring others of the plurality of UE receive beams.
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公开(公告)号：US12250576B2
公开(公告)日：2025-03-11
申请号：US17690816
申请日：2022-03-09
Applicant: QUALCOMM Incorporated
Inventor： Daoud Abdelhafiz Burghal , Raghu Narayan Challa , Vasanthan Raghavan , Farhad Meshkati , Ruhua He , Ting Kong
Abstract: Methods, systems, and devices for wireless communications are described. A first device may monitor for a set of reference signals from a second device using a set of directional beams. The first device may perform measurements on the received reference signals and select a subset of directional beams from the set of directional beams based on the performed measurements. Each directional beam may be associated with a set of beamforming weights. The first device may communicate with the second device using a dynamic set of beamforming weights. The first device may form the dynamic set of beamforming weights using a combination of beamforming weights from each set of beamforming weights associated with the subset of directional beams. The dynamic set of beamforming weights may be different from each set of beamforming weights associated with the subset of directional beams.
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