公开(公告)号：US08699465B2

公开(公告)日：2014-04-15

申请号：US12627974

申请日：2009-11-30

申请人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

发明人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

IPC分类号： H04W36/30 ,  H04W84/08 ,  H04W74/04

CPC分类号： H04B7/18543 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/08 ,  Y02D50/10

摘要： In a synchronous application to control forward link (FL) data rates in a satellite system, user equipment (UE) repeatedly transmits a quality control measurement (QCM) index during a QCM period. During this QCM period, the data rate cannot change. The associated satellite transmits at a new rate corresponding to the QCM index. The UE knows that it will begin receiving new data at the new rate after a QCM delay. In an asynchronous application, a satellite transmits a rate change signal over a FL rate indication channel (RICH). A UE monitors the FL RICH for this signal. When the signal quality is to be low, the satellite sends only a single bit of the QCM index over a first orthogonal channel. When the signal quality is not low, the satellite transmits each bit of the QCM index in a separate orthogonal channel of the FL RICH.

摘要翻译： 在用于在卫星系统中控制前向链路（FL）数据速率的同步应用中，用户设备（UE）在QCM周期期间重复发送质量控制测量（QCM）索引。 在这个QCM期间，数据速率不能改变。 相关联的卫星以对应于QCM指数的新速率发射。 UE知道在QCM延迟之后，它将以新的速率开始接收新的数据。 在异步应用中，卫星通过FL速率指示信道（RICH）发送速率改变信号。 UE监视该信号的FL RICH。 当信号质量低时，卫星在第一个正交信道上只发送一个QCM索引的比特。 当信号质量不低时，卫星在FL RICH的单独的正交信道中发送QCM索引的每个比特。

公开(公告)号：US20110128867A1

公开(公告)日：2011-06-02

申请号：US12627974

申请日：2009-11-30

申请人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

发明人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

IPC分类号： H04L12/26 ,  H04B7/14

CPC分类号： H04B7/18543 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/08 ,  Y02D50/10

摘要： In a synchronous application to control forward link (FL) data rates in a satellite system, user equipment (UE) repeatedly transmits a quality control measurement (QCM) index during a QCM period. During this QCM period, the data rate cannot change. The associated satellite transmits at a new rate corresponding to the QCM index. The UE knows that it will begin receiving new data at the new rate after a QCM delay. In an asynchronous application, a satellite transmits a rate change signal over a FL rate indication channel (RICH). A UE monitors the FL RICH for this signal. When the signal quality is to be low, the satellite sends only a single bit of the QCM index over a first orthogonal channel. When the signal quality is not low, the satellite transmits each bit of the QCM index in a separate orthogonal channel of the FL RICH.

摘要翻译： 在用于在卫星系统中控制前向链路（FL）数据速率的同步应用中，用户设备（UE）在QCM周期期间重复发送质量控制测量（QCM）索引。 在这个QCM期间，数据速率不能改变。 相关联的卫星以对应于QCM指数的新速率发射。 UE知道在QCM延迟之后，它将以新的速率开始接收新的数据。 在异步应用中，卫星通过FL速率指示信道（RICH）发送速率改变信号。 UE监视该信号的FL RICH。 当信号质量低时，卫星在第一个正交信道上只发送一个QCM索引的比特。 当信号质量不低时，卫星在FL RICH的单独的正交信道中发送QCM索引的每个比特。

公开(公告)号：US08588086B2

公开(公告)日：2013-11-19

申请号：US12627946

申请日：2009-11-30

申请人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

发明人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

IPC分类号： G01R31/08 ,  H04B1/00 ,  H04B1/38 ,  H04B7/15 ,  H04L5/16

CPC分类号： H04L1/0025 ,  H04L1/0075

摘要： Reverse link data rate indications in wireless communication systems are defined with low identification overhead. Existence of a pilot signal is leveraged in order to reduce the overhead for identifying and selecting the reverse link data rate. At least two distinguishable pilot signals are defined, in which, based on the particular pilot signal present in the transmitted frame, at least one rate set from the multiple available rate sets can be determined. Reverse rate information in the transmitted frame is then used to identify which specific data rate within the determined rate set is used. Based on the identified data rate, the receiver may then decode the payload data in the transmitted frame.

摘要翻译： 无线通信系统中的反向链路数据速率指示被定义为具有低的识别开销。 利用导频信号的存在以减少用于识别和选择反向链路数据速率的开销。 定义了至少两个可区分的导频信号，其中基于发送帧中存在的特定导频信号，可以确定从多个可用速率集合设置的至少一个速率。 然后使用发送帧中的反向速率信息来识别确定的速率集合内的哪个特定数据速率。 基于所识别的数据速率，接收机然后可以对传输帧中的有效载荷数据进行解码。

公开(公告)号：US20110128866A1

公开(公告)日：2011-06-02

申请号：US12627946

申请日：2009-11-30

申请人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

发明人： Bin Tian ,  Ahmad Jalali ,  Srikant Jayaraman ,  June Namgoong

IPC分类号： H04L12/26 ,  H04B7/185

CPC分类号： H04L1/0025 ,  H04L1/0075

摘要： Reverse link data rate indications in wireless communication systems are defined with low identification overhead. Existence of a pilot signal is leveraged in order to reduce the overhead for identifying and selecting the reverse link data rate. At least two distinguishable pilot signals are defined, in which, based on the particular pilot signal present in the transmitted frame, at least one rate set from the multiple available rate sets can be determined. Reverse rate information in the transmitted frame is then used to identify which specific data rate within the determined rate set is used. Based on the identified data rate, the receiver may then decode the payload data in the transmitted frame.

摘要翻译： 无线通信系统中的反向链路数据速率指示被定义为具有低的识别开销。 利用导频信号的存在以减少用于识别和选择反向链路数据速率的开销。 定义了至少两个可区分的导频信号，其中基于发送帧中存在的特定导频信号，可以确定从多个可用速率集合设置的至少一个速率。 然后使用发送帧中的反向速率信息来识别确定的速率集合内的哪个特定数据速率。 基于所识别的数据速率，接收机然后可以对传输帧中的有效载荷数据进行解码。

公开(公告)号：US20080025312A1

公开(公告)日：2008-01-31

申请号：US11829871

申请日：2007-07-27

申请人： Kalyan Kuppuswamy ,  June Namgoong ,  Srikant Jayaraman ,  Ahmad Jalali ,  Rohit Kapoor

发明人： Kalyan Kuppuswamy ,  June Namgoong ,  Srikant Jayaraman ,  Ahmad Jalali ,  Rohit Kapoor

IPC分类号： H04L12/56

CPC分类号： H04W28/06 ,  H04L69/04 ,  H04L69/22 ,  H04W84/06

摘要： A communication system is disclosed in which a mobile terminal having limited power is able to communicate with a land-based network via a low-rate satellite communication link. To achieve VoIP communications via a low-rate link, link-layer assisted zero-header header compression techniques are employed to reduce VoIP packet overheads. Additionally, overheads introduced by link layer protocol layers are eliminated or reduced. A transmitting device strips RTP/UDP/IP header information from a stream of VoIP packets. The transmitting device then sends an initial context message providing the RTP/UDP/IP header information. The stripped zero-header VoIP packets are then transmitted via a satellite relay. A receiving device uses the initial context information to reconstruct the headers for the zero-header VoIP packets.

摘要翻译： 公开了一种通信系统，其中具有有限功率的移动终端能够经由低速率卫星通信链路与陆基网络进行通信。 为了通过低速率链路实现VoIP通信，采用链路层辅助的零标题报头压缩技术来减少VoIP分组开销。 此外，消除或减少了由链路层协议层引入的开销。 发送设备从VoIP数据包流中剥离RTP / UDP / IP头信息。 然后，发送设备发送提供RTP / UDP / IP报头信息的初始上​​下文消息。 然后通过卫星中继传输剥离的零标题VoIP数据包。 接收设备使用初始上下文信息来重构零标题VoIP分组的报头。

公开(公告)号：US20080025249A1

公开(公告)日：2008-01-31

申请号：US11829869

申请日：2007-07-27

申请人： Kalyan Kuppuswamy ,  June Namgoong ,  Srikant Jayaraman ,  Ahmad Jalali

发明人： Kalyan Kuppuswamy ,  June Namgoong ,  Srikant Jayaraman ,  Ahmad Jalali

IPC分类号： H04B7/204

CPC分类号： H04B7/18567

摘要： A communication system is provided that allows a mobile terminal with an EVDO interface to perform VoIP communications via a satellite. The 1xEVDO physical layer frames and vocoder frames are synchronized and aligned to a known periodic time boundary for efficient transmission. A reverse link transmission rate is adjusted to match a VoIP packet source rate and operate the reverse link transmission channel to a satellite continuously. The reverse link transmission channel from a mobile terminal to a satellite may operate continuously and at a lower channel transmission rate to reduce the peak power amplifier power requirement. The higher layer time-out periods are increased to account for propagation delay to/from a satellite relay. A physical layer retransmit mechanism is disabled to ignore ACKs/NACKs when sending VoIP packets via a satellite relay. A different channel code may be selective applied depending on the size/type of packets being transmitted.

摘要翻译： 提供一种通信系统，其允许具有EVDO接口的移动终端经由卫星执行VoIP通信。 1xEVDO物理层帧和声码器帧被同步并对齐到已知的周期时间边界以进行有效传输。 调整反向链路传输速率以匹配VoIP分组源速率并且连续地向卫星操作反向链路传输信道。 从移动终端到卫星的反向链路传输信道可以连续地以较低的信道传输速率工作，以降低峰值功率放大器的功率需求。 更高层的超时周期被增加以考虑到/从卫星中继的传播延迟。 当通过卫星中继发送VoIP分组时，物理层重传机制被禁止忽略ACK / NACK。 根据发送的分组的大小/类型，可以选择性地应用不同的信道码。

公开(公告)号：US08649755B2

公开(公告)日：2014-02-11

申请号：US13329174

申请日：2011-12-16

申请人： Mark L. Moeglein ,  Ahmad Jalali ,  Bin Tian ,  Scott King

发明人： Mark L. Moeglein ,  Ahmad Jalali ,  Bin Tian ,  Scott King

IPC分类号： H04B1/16

CPC分类号： H04W52/0245 ,  H04W4/02 ,  H04W52/0229 ,  Y02B60/50 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/22

摘要： Techniques are provided which may be implemented in various methods, apparatuses, and/or articles of manufacture for use by a device that is operable in a plurality of modes, including “higher power mode” and a “lower power mode”. A timing circuit may be set based, at least in part, on a phase value obtained from a signal from a ground-based transmitter, and operation of the device may be selectively transitioned to a lower power mode wherein the device uses the timing circuit. In certain example implementations, operation of the device to the lower power mode may be selectively transition and based, at least in part, on a determination that one or more attribute values satisfy a profile test indicating that the electronic device is likely to be within a characterized environment, and/or a determination that the electronic device is likely to be in a constrained motion state.

摘要翻译： 提供了可以以包括“较高功率模式”和“较低功率模式”在多种模式中可操作的装置使用的各种方法，装置和/或制品的实施方式。 可以至少部分地基于从基于地面的发射机的信号获得的相位值来设置定时电路，并且可以选择性地将设备的操作转换到其中设备使用定时电路的较低功率模式。 在某些示例实现中，设备到较低功率模式的操作可以选择性地转换并且至少部分地基于确定一个或多个属性值满足表示电子设备可能在 和/或确定电子设备可能处于受限运动状态。

公开(公告)号：US20110286325A1

公开(公告)日：2011-11-24

申请号：US13109302

申请日：2011-05-17

申请人： Ahmad Jalali ,  Ranganathan Krishnan ,  Bin Tian

发明人： Ahmad Jalali ,  Ranganathan Krishnan ,  Bin Tian

IPC分类号： G06F11/00

CPC分类号： H04B7/18506 ,  H04B7/18504 ,  H04B7/18584 ,  H04B7/18589

摘要： A hybrid satellite-mesh network including a ground segment, a mobile segment and a satellite segment provides high bandwidth communication between mobile platforms and the Internet. The satellite segment is used only when mesh network communication links between mobile segment nodes and ground segment nodes are unavailable. Mobile segment nodes can function in either an access terminal mode or an access point mode to communicate with other mobile segment nodes according to a routing algorithm in a mesh portion of the network. Mobile segment nodes employ adaptive frequency reuse, link level date rate adaptation, link level power control and adaptive beam forming antennas.

摘要翻译： 包括地面段，移动段和卫星段的混合卫星网状网络在移动平台和因特网之间提供高带宽通信。 仅当移动节点节点和地面节点节点之间的网状网络通信链路不可用时才使用卫星节点。 移动节点节点可以在接入终端模式或接入点模式下工作，以根据网络的网状部分中的路由算法与其他移动节点节点进行通信。 移动节点节点采用自适应频率重用，链路级日期速率适配，链路级功率控制和自适应波束形成天线。

公开(公告)号：US09008049B2

公开(公告)日：2015-04-14

申请号：US13609727

申请日：2012-09-11

申请人： Bin Tian ,  Alok K. Gupta ,  Ahmad Jalali

发明人： Bin Tian ,  Alok K. Gupta ,  Ahmad Jalali

IPC分类号： H04J3/16 ,  H04W4/00 ,  H04W72/04 ,  H04W52/02 ,  H04W28/02

CPC分类号： H04J3/1694 ,  H04W4/70 ,  H04W28/0215 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/0406 ,  H04W72/0446 ,  Y02D70/21

摘要： Methods, systems, and devices are described for managing wireless communications in a machine-to-machine (M2M) wireless Wide Area Network (WAN). A physical layer frame is generated. The frame being used for wireless M2M communications on a forward link in the M2M wireless WAN. The frame including no more than three channels. The physical layer frame including a first channel including paging channel, a second channel including a traffic channel, and a third channel including an acknowledgment (ACK) channel. A time division multiplexing (TDM) operation is performed on pilot symbols and data symbols to obtain a TDM pilot burst. At least one TDM pilot burst is inserted into each channel of the physical layer frame. The physical layer frame is transmitted on the forward link at a low data rate.

摘要翻译： 描述了用于管理机器对机器（M2M）无线广域网（WAN）中的无线通信的方法，系统和设备。 生成物理层帧。 该帧用于在M2M无线WAN中的前向链路上的无线M2M通信。 该框架不超过三个通道。 物理层帧包括包括寻呼信道的第一信道，包括业务信道的第二信道和包括确认（ACK）信道的第三信道。 对导频符号和数据符号执行时分复用（TDM）操作以获得TDM导频突发。 至少一个TDM导频突发被插入到物理层帧的每个信道中。 物理层帧以低数据速率在前向链路上传输。

公开(公告)号：US09397745B2

公开(公告)日：2016-07-19

申请号：US13109302

申请日：2011-05-17

申请人： Ahmad Jalali ,  Ranganathan Krishnan ,  Bin Tian

发明人： Ahmad Jalali ,  Ranganathan Krishnan ,  Bin Tian

IPC分类号： H04B7/185

CPC分类号： H04B7/18506 ,  H04B7/18504 ,  H04B7/18584 ,  H04B7/18589

摘要： A hybrid satellite-mesh network including a ground segment, a mobile segment and a satellite segment provides high bandwidth communication between mobile platforms and the Internet. The satellite segment is used only when mesh network communication links between mobile segment nodes and ground segment nodes are unavailable. Mobile segment nodes can function in either an access terminal mode or an access point mode to communicate with other mobile segment nodes according to a routing algorithm in a mesh portion of the network. Mobile segment nodes employ adaptive frequency reuse, link level date rate adaptation, link level power control and adaptive beam forming antennas.

摘要翻译： 包括地面段，移动段和卫星段的混合卫星网状网络在移动平台和因特网之间提供高带宽通信。 仅当移动节点节点和地面节点节点之间的网状网络通信链路不可用时才使用卫星节点。 移动节点节点可以在接入终端模式或接入点模式下工作，以根据网络的网状部分中的路由算法与其他移动节点节点进行通信。 移动节点节点采用自适应频率重用，链路级日期速率适配，链路级功率控制和自适应波束形成天线。