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公开(公告)号：US20210242935A1
公开(公告)日：2021-08-05
申请号：US17154497
申请日：2021-01-21
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Jun Ma , Qiang Wu , Xiao Feng Wang , Dan Zhang , Huilin Xu
Abstract: This disclosure provides systems, methods and apparatus for communicating a satellite behavior change. In one aspect, a satellite identifies a satellite behavior change to occur for the satellite of a non-terrestrial network for cellular communications. The apparatus also signals the satellite behavior change to a user equipment serviced by the satellite. In another aspect, a user equipment obtains, from a satellite servicing the user equipment, a signaling of a satellite behavior change to occur for the satellite. The user equipment also adjusts one or more user equipment parameters for cellular communication based on the obtained signaling. The satellite behavior change may include a satellite attitude or a transmit power or coverage area of one or more satellite beams. The user equipment parameters may include satellite or beam selection or reselection to listen to paging information, satellite or beam handover parameters, or transmit power control parameters.
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公开(公告)号：US20210105825A1
公开(公告)日：2021-04-08
申请号：US17028883
申请日：2020-09-22
Applicant: QUALCOMM Incorporated
Inventor： Xiao Feng Wang , Iyab Issam Sakhnini , Peter Gaal , Huilin Xu , Jun Ma , Dan Zhang
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station by initiating a random access procedure with a multi-root preamble. The UE may receive, from the base station, a configuration message that indicates one or more parameters for the multi-root preamble. The one or more parameters may include cyclic shifts, phase rotations, and sequence roots corresponding to a plurality of sequences. The base station may identify the one or more parameters and transmit the configuration message based on the identifying. The UE may identify the one or more parameters for the multi-root preamble based on the configuration message and/or a pre-configuration at the UE. The UE may transmit, to the base station, the multi-root preamble based at least in part on the one or more parameters.
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Patent Agency Ranking
73.发明授权公开(公告)号：US10244453B2
公开(公告)日：2019-03-26
申请号：US15149008
申请日：2016-05-06
Applicant: QUALCOMM Incorporated
Inventor： Seyed Shwan Ashrafi , Sumeeth Nagaraja , Dan Vassilovski , Dan Zhang , James Determan , Gene Wesley Marsh , Jun Ma
Abstract: Methods and apparatuses for managing inter-satellite handovers are provided to allow a user terminal to reduce the frequency of handovers while maintaining a sufficiently high system capacity in a non-geosynchronous satellite communication system. The method and apparatus for managing inter-satellite handovers may be implemented in a gateway, in infrastructure connected to a gateway, in a user terminal, or in a satellite.
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公开(公告)号：US09538538B2
公开(公告)日：2017-01-03
申请号：US14864758
申请日：2015-09-24
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Mehmet Izzet Gurelli , Sumeeth Nagaraja , Dan Vassilovski , James Taylor Determan , Gene Wesley Marsh , Qiang Wu
CPC classification number: H04W72/046 , H04B7/18543 , H04W72/0473
Abstract: A method and apparatus for a non-geosynchronous orbit (NGSO) satellite to comply with equivalent power flux density (EPFD) limits are disclosed. The example implementations may allow a constellation of NGSO satellites to comply with EPFD limits without disabling beams transmitted from the NGSO satellites. The power level of one or more beams to be transmitted from the NGSO satellites may be dynamically adjusted according to a beam power back-off schedule. In some aspects, the beam power back-off schedule may specify beam power back-off values as a function of latitude on Earth, and may allow for maximum allowable power levels for beams transmitted from the NGSO satellites without violating any of the EPFD percentile limits.
Abstract translation: 公开了一种用于非地球同步轨道（NGSO）卫星符合等效功率通量密度（EPFD）限值的方法和装置。 示例实现可以允许NGSO卫星的星座符合EPFD限制，而不禁止从NGSO卫星发射的波束。 从NGSO卫星发送的一个或多个波束的功率电平可以根据波束功率退避进度进行动态调整。 在一些方面，波束功率回退计划可以指定作为地球上纬度的函数的波束功率回退值，并且可以允许从NGSO卫星发射的波束的最大允许功率电平，而不违反任何EPFD百分位数限制 。
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公开(公告)号：US20160278063A1
公开(公告)日：2016-09-22
申请号：US14864758
申请日：2015-09-24
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Mehmet Izzet Gurelli , Sumeeth Nagaraja , Dan Vassilovski , James Taylor Determan , Gene Wesley Marsh , Qiang Wu
IPC: H04W72/04
CPC classification number: H04W72/046 , H04B7/18543 , H04W72/0473
Abstract: A method and apparatus for a non-geosynchronous orbit (NGSO) satellite to comply with equivalent power flux density (EPFD) limits are disclosed. The example implementations may allow a constellation of NGSO satellites to comply with EPFD limits without disabling beams transmitted from the NGSO satellites. The power level of one or more beams to be transmitted from the NGSO satellites may be dynamically adjusted according to a beam power back-off schedule. In some aspects, the beam power back-off schedule may specify beam power back-off values as a function of latitude on Earth, and may allow for maximum allowable power levels for beams transmitted from the NGSO satellites without violating any of the EPFD percentile limits.
Abstract translation: 公开了一种用于非地球同步轨道（NGSO）卫星符合等效功率通量密度（EPFD）限值的方法和装置。 示例实现可以允许NGSO卫星的星座符合EPFD限制，而不禁止从NGSO卫星发射的波束。 从NGSO卫星发送的一个或多个波束的功率电平可以根据波束功率退避进度进行动态调整。 在一些方面，波束功率回退计划可以指定作为地球上纬度的函数的波束功率回退值，并且可以允许从NGSO卫星发射的波束的最大允许功率电平，而不违反任何EPFD百分位数限制 。
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76.发明授权Methods and apparatus for improving call performance by enabling uplink transmissions during poor downlink radio conditions 有权通过在较差的下行链路无线电条件下启用上行链路传输来改善呼叫性能的方法和公开(公告)号：US09240936B2
公开(公告)日：2016-01-19
申请号：US14095492
申请日：2013-12-03
Applicant: QUALCOMM Incorporated
Inventor： Sitaramanjaneyulu Kanamarlapudi , Rohit Kapoor , Rashid Ahmed Akbar Attar , Liangchi Hsu , Yi Zhang , Dan Zhang
CPC classification number: H04L43/0847 , H04L1/00 , H04W28/04 , H04W52/0245 , H04W56/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164
Abstract: Apparatus and methods of improving call performance by enabling/continuing uplink transmissions during poor downlink radio conditions. The apparatus and methods further include monitoring, by a user equipment (UE), downlink (DL) signal conditions associated with a serving Node B. Moreover, the apparatus and methods include triggering an out-of-sync state upon a determination that the DL signal conditions have degraded beyond a DL signal quality threshold. Additionally, the apparatus and methods include delaying turning off of a power amplifier (PA) associated with transmission of uplink (UL) messages for a call performance improvement threshold time duration.
Abstract translation: 通过在较差的下行链路无线电条件下启用/继续上行链路传输来改善呼叫性能的装置和方法 所述装置和方法还包括由用户设备（UE）监视与服务节点B相关联的下行链路（DL）信号状况。此外，所述装置和方法包括在确定DL时触发不同步状态 信号条件已经劣化超过DL信号质量阈值。 此外，该装置和方法包括延迟与呼叫性能改善阈值持续时间的上行链路（UL）消息的传输相关联的功率放大器（PA）的关闭。
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77.发明申请公开(公告)号：US20140177464A1
公开(公告)日：2014-06-26
申请号：US14192626
申请日：2014-02-27
Applicant: QUALCOMM Incorporated
Inventor： Sitaramanjaneyulu Kanamarlapudi , Dan Zhang , Sharif Matin , Rohit Kapoor , Liangchi Hsu
CPC classification number: H04L1/0002 , H04L1/1848
Abstract: Methods and apparatus for communication comprise determining whether a communication characteristic value meets or exceeds a communication characteristic threshold value. Additionally, the methods and apparatus comprise adjusting a retransmission request transmission rate when the communication characteristic value meets or exceeds the communication characteristic threshold value. Moreover, the methods and apparatus comprise sending a retransmission request to a network entity based on the adjusted retransmission request transmission rate.
Abstract translation: 用于通信的方法和装置包括确定通信特性值是否满足或超过通信特性阈值。 此外，所述方法和装置包括当通信特性值满足或超过通信特性阈值时调整重传请求传输速率。 此外，所述方法和装置包括基于所调整的重传请求传输速率向网络实体发送重传请求。
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