公开(公告)号：WO2017131919A1

公开(公告)日：2017-08-03

申请号：PCT/US2016/068983

申请日：2016-12-28

Applicant: QUALCOMM INCORPORATED

Inventor： DAMNJANOVIC, Jelena ,  ULUPINAR, Fatih ,  WU, Qiang

IPC: H04B7/185 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04B7/18582 ,  H04B7/18539 ,  H04L1/1864 ,  H04L1/1887 ,  H04L1/1893 ,  H04L5/0055 ,  H04L5/0091 ,  H04W72/0446 ,  H04W72/1263

Abstract: A method and apparatus for operating a satellite access network (SAN) of a satellite communication system to schedule communications with a user terminal. In some aspects, the SAN may provision a communication frame, for the user terminal, into a number of forward-link (FL) subframes and a different number of reverse-link (RL) subframes. The SAN then transmits the FL subframes to the user terminal via a forward link of the satellite communication system, and subsequently receives the RL subframes from the user terminal via a reverse link of the satellite communication system.

Abstract translation: 一种用于操作卫星通信系统的卫星接入网络（SAN）以调度与用户终端的通信的方法和设备。 在一些方面，SAN可以为用户终端提供通信帧到多个前向链路（FL）子帧和不同数量的反向链路（RL）子帧。 SAN然后通过卫星通信系统的前向链路将FL子帧发送给用户终端，随后经由卫星通信系统的反向链路从用户终端接收RL子帧。

公开(公告)号：WO2017053133A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/051547

申请日：2016-09-13

Applicant: QUALCOMM INCORPORATED

Inventor： WU, Qiang ,  BLACK, Peter John ,  MA, Jun

IPC: H04L27/00 ,  H04B7/185

CPC classification number: H04B7/18513 ,  H04L27/0014 ,  H04L43/16

Abstract: A method and apparatus for estimating a frequency offset of received signals. The receiving device receives a plurality of pilot signals form a transmitting device, and determines an un-aliased frequency offset estimate based on the received pilot signals. The receiving device further determines a low-noise frequency offset estimate based on the received pilot signals, wherein the low-noise frequency offset estimate is blow a threshold noise level. The receiving device then generates a hybrid frequency offset estimate based at least in part on the un-aliased and low-noise frequency offset estimates, wherein the hybrid frequency offset estimate is un-aliased and has a lower estimation noise than the un-aliased frequency offset estimate.

Abstract translation: 一种用于估计接收信号的频率偏移的方法和装置。 接收设备从发送设备接收多个导频信号，并且基于接收到的导频信号来确定非混叠频偏估计。 接收装置还基于接收到的导频信号进一步确定低噪声频率偏移估计，其中，低噪声频率偏移估计值会产生阈值噪声水平。 然后，所述接收装置至少部分地基于所述未混叠和低噪声频率偏移估计来产生混合频率偏移估计，其中所述混合频率偏移估计是未锯齿的并且具有比所述非混叠频率更低的估计噪声 抵消估计。

公开(公告)号：WO2017014940A1

公开(公告)日：2017-01-26

申请号：PCT/US2016/040791

申请日：2016-07-01

Applicant: QUALCOMM INCORPORATED

Inventor： BLACK, Peter John ,  WU, Qiang

IPC: H04B7/185

CPC classification number: H04W76/048 ,  H04B7/18513 ,  H04W52/02 ,  H04W72/042 ,  H04W72/1273 ,  H04W76/28 ,  H04W88/16 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/25 ,  Y02D70/26 ,  Y02D70/446

Abstract: Power consumption by a communication satellite may be reduced by operating in a transmission time interval (TTI) gating mode, in which an on period is provided for the satellite to transmit a reference signal (RS), control signals, and a portion of data within an on period through a forward link to a user terminal (UT), followed by an off period in which forward link transmission ceases. During the off period of the TTI, the satellite may turn off its forward link power amplifier and cease transmission of data to the UT. A gateway may send a signal enabling the TTI gating mode, as well as information specifying the TTI gating configuration, such as the length of the on or off period of the TTI, to the satellite.

Abstract translation: 可以通过在传输时间间隔（TTI）门控模式中操作来减少通信卫星的功率消耗，其中为卫星提供接通周期以传输参考信号（RS），控制信号和一部分数据 通过到用户终端（UT）的前向链路的接通周期，随后是前向链路传输停止的关闭时段。 在TTI的关闭期间，卫星可能会关闭其前向链路功率放大器，并停止将数据传输到UT。 网关可以发送启用TTI门控模式的信号，以及指定TTI门控配置的信息，例如TTI的接通或关闭时段的长度到卫星。

公开(公告)号：WO2016153822A1

公开(公告)日：2016-09-29

申请号：PCT/US2016/022176

申请日：2016-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： WU, Qiang ,  BLACK, Peter John

IPC: H04B7/185 ,  H04L1/00

CPC classification number: H04B7/18582 ,  H03M13/09 ,  H03M13/258 ,  H03M13/2906 ,  H04B7/18517 ,  H04B7/18519 ,  H04B7/1858 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0064 ,  H04L1/0065 ,  H04L1/18 ,  H04L5/0055 ,  H04W72/0446

Abstract: A communication satellite system provides for spectral efficient data transmissions by a gateway to multiple user terminals by way of a satellite. The gateway transmits multiple blocks in a single slot, each block intended for one of the user terminals, where each block is encoded and modulated according to a scheme that may be different for each intended user terminal. Upon re-transmission of a block if that block is lost or received in error, the block may be encoded and modulated according to another scheme that is less spectrally efficient than in the first transmission of the block.

Abstract translation: 通信卫星系统通过卫星通过网关向多个用户终端进行频谱有效的数据传输。 网关在单个时隙中发送多个块，每个块用于一个用户终端，其中每个块根据对于每个预期用户终端可能不同的方案进行编码和调制。 如果该块被错误地丢失或接收到，则块的重新发送，可以根据与块的第一次传输相比光谱效率更低的另一方案对块进行编码和调制。

公开(公告)号：WO2016153764A1

公开(公告)日：2016-09-29

申请号：PCT/US2016/021083

申请日：2016-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： MARSH, Gene Wesley ,  WU, Qiang ,  BLACK, Peter John ,  VASSILOVSKI, Dan ,  GURELLI, Mehmet Izzet

IPC: H04B7/185

CPC classification number: H04W72/046 ,  H04B7/185 ,  H04B7/18513 ,  H04B7/18539 ,  H04B7/2041 ,  H04W52/243

Abstract: A method and apparatus for operating one or more satellites in a non-geosynchronous orbit (NGSO) satellite constellation are disclosed. In some aspects, a coverage area on Earth for a first beam transmitted from a first satellite in the NGSO satellite constellation may be determined, a cone may be projected onto a first region of the beam coverage area, a second region of the beam coverage area may be defined as including portions of the beam coverage area lying outside the first region, and a minimum arc angle for each of a plurality of points within the first region but not the second region of the beam coverage area may be determined.

Abstract translation: 公开了一种在非地球同步轨道（NGSO）卫星星座中操作一个或多个卫星的方法和装置。 在一些方面中，可以确定从NGSO卫星星座中的第一卫星发送的用于第一波束的地球上的覆盖区域，锥体可投影到波束覆盖区域的第一区域，波束覆盖区域的第二区域 可以被定义为包括位于第一区域之外的波束覆盖区域的部分，并且可以确定波束覆盖区域的第一区域内但不是波束覆盖区域的第二区域中的多个点中的每一个点的最小弧角。

公开(公告)号：WO2016153762A1

公开(公告)日：2016-09-29

申请号：PCT/US2016/021080

申请日：2016-03-04

Applicant: QUALCOMM INCORPORATED

Inventor： MARSH, Gene Wesley ,  WU, Qiang ,  BLACK, Peter John ,  VASSILOVSKI, Dan

IPC: H04B7/185 ,  H04B7/204

CPC classification number: H04W72/046 ,  H04B7/185 ,  H04B7/18513 ,  H04B7/18539 ,  H04B7/2041 ,  H04W52/243

Abstract: A method and apparatus for operating one or more satellites in a non-geosynchronous orbit (NGSO) satellite constellation are disclosed. In some aspects, the satellite may allocate a first frequency band to a first beam, and may allocate a second frequency band to a second beam. Then, if the first beam is disabled, the satellite may re-map the first frequency band from the first beam to the second beam. In this manner, frequency resources initially allocated to a disabled beam may be re-mapping to another, non-disabled beam.

Abstract translation: 公开了一种在非地球同步轨道（NGSO）卫星星座中操作一个或多个卫星的方法和装置。 在一些方面，卫星可以将第一频带分配给第一波束，并且可以向第二波束分配第二频带。 然后，如果第一波束被禁用，卫星可以将第一频带从第一波束重新映射到第二波束。 以这种方式，最初分配给禁用波束的频率资源可以重新映射到另一个非禁用波束。

公开(公告)号：WO2009143383A3

公开(公告)日：2009-11-26

申请号：PCT/US2009/044911

申请日：2009-05-21

Applicant: QUALCOMM INCORPORATED ,  TINNAKORNSRISUPHAP, Peerapol ,  WU, Qiang

Inventor： TINNAKORNSRISUPHAP, Peerapol ,  WU, Qiang

IPC: H04W48/12

Abstract: Techniques for transmitting and receiving pilots (reference signals) in a wireless network are described. In an aspect, information may be conveyed based on specific resources used to send a signal, e.g., a pilot. A pseudo- random function may receive the information to convey via the pilot and possibly other information and may provide pseudo-random values, which may be used to select the resources to use to send the pilot. In one design, a transmitter (e.g., a base station for a sector) may determine first information (e.g., a sector ID) to convey via a pilot and may also determine second information for absolute time (e.g. a pilot cycle index). The transmitter may determine resources (e.g., slots) to use to send the pilot based on the first and second information and possibly based further on a pseudo- random, PN, offset assigned to the sector. The transmitter may transmit the pilot in the determined resources. The sector ID may be recovered at a receiver based on a pilot cycle index and other information.

公开(公告)号：WO2008144450A3

公开(公告)日：2008-11-27

申请号：PCT/US2008/063800

申请日：2008-05-15

Applicant: QUALCOMM INCORPORATED ,  BLACK, Peter J. ,  WU, Qiang ,  ZHAO, Wanlun ,  TOKGOZ, Yeliz ,  PADOVANI, Roberto ,  NAGUIB, Ayman Fawzy ,  KIM, Je Woo ,  AGASHE, Parag A. ,  BHUSHAN, Naga ,  DAYAL, Pranav

Inventor： BLACK, Peter J. ,  WU, Qiang ,  ZHAO, Wanlun ,  TOKGOZ, Yeliz ,  PADOVANI, Roberto ,  NAGUIB, Ayman Fawzy ,  KIM, Je Woo ,  AGASHE, Parag A. ,  BHUSHAN, Naga ,  DAYAL, Pranav

IPC: H04L5/02

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

公开(公告)号：WO2007022319A2

公开(公告)日：2007-02-22

申请号：PCT/US2006/032063

申请日：2006-08-16

Applicant: QUALCOMM INCORPORATED ,  ATTAR, Rashid, Ahmed, Akbar ,  BHUSHAN, Naga ,  BLACK, Peter, John ,  PANKAJ, Rajesh, K. ,  ZHANG, Danlu ,  WU, Qiang ,  YAVUZ, Mehmet ,  VANICHPUN, Sarut ,  TOKGOZ, Yeliz ,  GROB, Matthew, Stuart

Inventor： ATTAR, Rashid, Ahmed, Akbar ,  BHUSHAN, Naga ,  BLACK, Peter, John ,  PANKAJ, Rajesh, K. ,  ZHANG, Danlu ,  WU, Qiang ,  YAVUZ, Mehmet ,  VANICHPUN, Sarut ,  TOKGOZ, Yeliz ,  GROB, Matthew, Stuart

IPC: H04L12/28

CPC classification number: H04W36/18 ,  H04W36/30 ,  H04W36/38 ,  H04W72/00 ,  H04W99/00

Abstract: Embodiments disclosed herein relate to methods and systems for providing adaptive server selection in wireless communications. An access terminal may be configured to determine a forward link quality metric associated with each of a plurality of sectors serviced by a plurality of access points; assign credits to each sector in relation to the forward link quality metric; and change a data source control (DSC) value if the credits accumulated for a non-serving sector at a DSC change boundary is greater than a predetermined threshold, where the non-serving sector and the serving sector for the access terminal belong to different cells. The access terminal may be further configured to change a data rate control (DRC) cover in accordance with the DSC change. The use of DSC may provide an early indication of handoff, thereby allowing the service outage associated with server switching to be substantially reduced.

Abstract translation: 这里公开的实施例涉及用于在无线通信中提供自适应服务器选择的方法和系统。 接入终端可以被配置为确定与由多个接入点服务的多个扇区中的每一个相关联的前向链路质量度量; 相对于前向链路质量度量向每个扇区分配信用; 并且如果在DSC变化边界处为非服务扇区累积的信用值大于预定阈值（其中非服务扇区和接入终端的服务扇区属于不同小区），则改变数据源控制（DSC）值 。 接入终端还可以被配置为根据DSC改变来改变数据速率控制（DRC）覆盖。 DSC的使用可以提供切换的早期指示，从而允许与服务器切换相关的服务中断大大减少。

公开(公告)号：WO2006017610A1

公开(公告)日：2006-02-16

申请号：PCT/US2005/027640

申请日：2005-08-03

Applicant: QUALCOMM Incorporated ,  CANOY, Michael-David Nakayoshi ,  AGASHE, Parag Arun ,  WU, Qiang ,  KINTADA, Ramakrishna ,  SUNDARAM, Senthilkumar Kaliannan

Inventor： CANOY, Michael-David Nakayoshi ,  AGASHE, Parag Arun ,  WU, Qiang ,  KINTADA, Ramakrishna ,  SUNDARAM, Senthilkumar Kaliannan

IPC: H04Q7/22

CPC classification number: H04W48/10 ,  H04W48/18

Abstract: An access terminal an a wireless multiple-access network monitors multiple broadcast soft handoff groups simultaneously in order to select the best logical broadcast channels to decode based upon broadcast contents selected by a user of the access terminal. When in a traffic state the access terminal is able to decode one or more broadcast channels by decoding a unicast channel from a traffic server during one time slot and then decoding a broadcast channel from a broadcast server during another time slot.

Abstract translation: 接入终端和无线多址网络同时监视多个广播软切换组，以便基于由接入终端的用户选择的广播内容选择要解码的最佳逻辑广播信道。 当处于通信状态时，接入终端能够通过在一个时隙期间从业务服务器解码单播信道来解码一个或多个广播信道，然后在另一时隙期间从广播服务器解码广播信道。