公开(公告)号：JP2003324776A

公开(公告)日：2003-11-14

申请号：JP2003084649

申请日：2003-03-26

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッド

Inventor： ZEHAVI EPHRAIM ,  WOLF JACK K ,  SCHIFF LEONARD N

IPC: H04B7/15 ,  H04J3/24 ,  H04J11/00 ,  H04J13/00 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56 ,  H04W72/04 ,  H04Q7/38 ,  H04Q7/36

CPC classification number: H04L1/0083 ,  H04B7/18513 ,  H04J3/247 ,  H04J13/00 ,  H04L1/0014 ,  H04W72/0486

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for providing variable rate data in a communications system using statistical multiplexing. SOLUTION: This invention discloses the variable rate transmission system wherein when the capacity of a traffic channel is equal to or more than a data rate of a packet, the packet of variable rate data generated by a variable rate data source (20) is modulated on the traffic channel by a traffic channel modulator (30). When the capacity of the traffic channel is smaller than the data rate, the packet of variable rate data is modulated onto the traffic channel by the traffic channel modulator (30) and modulated onto at least one overflow channel by a traffic channel modulator (32). COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种使用统计复用在通信系统中提供可变速率数据的装置和方法。 解决方案：本发明公开了一种可变速率传输系统，其中当业务信道的容量等于或大于分组的数据速率时，由可变速率数据源（20）产生的可变速率数据分组， 通过业务信道调制器（30）在业务信道上进行调制。 当业务信道的容量小于数据速率时，可变速率数据的分组由业务信道调制器（30）调制到业务信道上，并由业务信道调制器（32）调制到至少一个溢出信道上， 。 版权所有（C）2004，JPO

公开(公告)号：JP2012039632A

公开(公告)日：2012-02-23

申请号：JP2011197092

申请日：2011-09-09

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SCHIFF LEONARD N

IPC: H04J13/18 ,  H04B7/15 ,  H04B7/185 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00

CPC classification number: H04B7/185 ,  H04B7/18513 ,  H04B7/18567 ,  H04J13/0048

Abstract: PROBLEM TO BE SOLVED: To provide a method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m, that does not require a high powered paging channel.SOLUTION: The method includes the steps of generating a paging channel message which is combined with a Walsh sequence having a length greater than or equal to 2 m, and transmitting the paging channel message at a data rate of less than 480 bits per second (bps). By transmitting the paging channel message at a low data rate and receiving energy over a 1000 times longer period, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence of 65536 chips in length, and the data rate is less than 10 bps.

Abstract translation: 要解决的问题：提供一种在不需要高功率寻呼信道的采用具有预定长度m的诸如沃尔什序列的正交信道化码的通信系统中进行深度寻呼的方法。 解决方案：该方法包括以下步骤：生成与长度大于或等于2m的沃尔什序列组合的寻呼信道消息，并以小于480比特的数据速率发送寻呼信道消息 第二（bps）。 通过以低数据速率发送寻呼信道消息并且在1000倍的时间段内接收能量，消息能够穿透建筑物和其他结构或高衰减环境，从而允许一个成功地寻址在其中的用户终端 结构或区域。 优选地，使用长度为65536个码片的辅助沃尔什序列来形成寻呼信道消息，并且数据速率小于10bps。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012075127A

公开(公告)日：2012-04-12

申请号：JP2011234989

申请日：2011-10-26

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SCHIFF LEONARD N

IPC: H04B7/155 ,  H04B1/7087 ,  H04B7/15 ,  H04B7/185 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00 ,  H04W68/02

CPC classification number: H04B7/185 ,  H04B7/18513 ,  H04B7/18567 ,  H04J13/0048

Abstract: PROBLEM TO BE SOLVED: To compensate for the Doppler effect in a communication system in which messages including a pilot signal and a paging channel and an auxiliary pilot signal and an auxiliary paging channel transmitted at a lower data rate than the pilot signal and the paging channel, are transmitted.SOLUTION: A method for deep paging includes: a step of receiving ephemeris messages transmitted from a gateway at a user terminal; a step of storing the ephemeris messages in the user terminal; a step of determining the location of the user terminal; a step of determining Doppler based on the location and the ephemeris messages stored in the user terminal; a step of capturing a pilot signal or an auxiliary pilot signal on the basis of the determined Doppler; and a step of monitoring a paging channel or an auxiliary paging channel on the basis of the captured pilot signal or auxiliary pilot signal.

Abstract translation: 要解决的问题：为了补偿在包括导频信号和寻呼信道以及辅助导频信号和辅助寻呼信道的消息以比导频信号低的数据速率发送的消息中的多普勒效应，以及 寻呼信道被发送。 解决方案：一种用于深度寻呼的方法包括：从用户终端处的网关接收星历消息的步骤; 将星历消息存储在用户终端中的步骤; 确定用户终端的位置的步骤; 基于存储在用户终端中的位置和星历消息来确定多普勒的步骤; 基于所确定的多普勒来捕获导频信号或辅助导频信号的步骤; 以及基于所捕获的导频信号或辅助导频信号监视寻呼信道或辅助寻呼信道的步骤。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2007306583A

公开(公告)日：2007-11-22

申请号：JP2007143216

申请日：2007-05-30

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SCHIFF LEONARD N ,  MILLER DAVID S

IPC: H04M3/00 ,  H04W16/24 ,  H04W36/14

CPC classification number: H04B7/18541

Abstract: PROBLEM TO BE SOLVED: To provide a handoff technique which enables a soft handoff between adjacent beams from a single satellite, while reducing utilization of system resources. SOLUTION: System users detect transitions in service between a current service area (B10) and an adjacent service area (B2), and request a forward link channel in the new service area (B2) when a detected signal strength for the new service area exceeds predetermined threshold levels. The forward communications link in the current service area (B10) is maintained until the strength of the new service area (B2) signal reaches a certain level and appropriate channel quality is confirmed, on the basis of various known criteria. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种切换技术，其能够实现来自单个卫星的相邻波束之间的软切换，同时减少系统资源的利用。 解决方案：系统用户检测当前服务区域（B10）和相邻服务区域（B2）之间的服务转换，并在新服务区域（B2）的检测到的信号强度时请求新服务区域（B2）中的前向链路信道 服务区域超过预定阈值水平。 基于各种已知标准，保持当前服务区域（B10）中的前向通信链路，直到新服务区域（B2）信号的强度达到一定水平，并且确认适当的信道质量。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2011139497A

公开(公告)日：2011-07-14

申请号：JP2011027340

申请日：2011-02-10

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SCHIFF LEONARD N

IPC: H04W84/02 ,  H04B7/15 ,  H04B7/155 ,  H04B7/185 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00 ,  H04W72/04 ,  H04W84/06

CPC classification number: H04B7/185 ,  H04B7/18513 ,  H04B7/18567 ,  H04J13/0048

Abstract: PROBLEM TO BE SOLVED: To provide a method of deep paging which does not require a high powered paging channel.
SOLUTION: The method includes the steps of: generating a paging channel message which is combined with a Walsh sequence having a length equal to or greater than 2m; and transmitting the paging channel message at a data rate less than 480 bits/sec (bps). By transmitting the page channel message at a low data rate and integrating collected energy over a period longer by a factor on the order of 1,000, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence on the order of 65536 chips in length, and the data rate is less than 10 bps.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种不需要高功率寻呼信道的深度寻呼方法。 解决方案：该方法包括以下步骤：产生与长度等于或大于2m的沃尔什序列组合的寻呼信道消息; 并以小于480比特/秒（bps）的数据速率发送寻呼信道消息。 通过以低数据速率发送寻呼信道消息，并将收集的能量在一段更长时间内累积约1000的因子，消息能够穿透建筑物和其他结构或高衰减环境，从而允许成功地寻呼 在这样的结构或区域内的用户终端。 优选地，使用长度为65536个码片的辅助沃尔什序列来形成寻呼信道消息，并且数据速率小于10bps。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011055511A

公开(公告)日：2011-03-17

申请号：JP2010215263

申请日：2010-09-27

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： SCHIFF LEONARD N

IPC: H04W28/18 ,  H04B7/185 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04B7/1858

Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for rain fade burden sharing in a satellite based communication system.
SOLUTION: The system can improve a communication link with a particular user by varying the data rate. The data rate can be varied by reducing a coding rate to compensate for low signal quality. In a time multiplexed communication system where multiple users time multiplex the available communication bandwidth, the system can concurrently adjust a time allocated to a user based in part on the coding rate. The time allocated to a user can be increased for decreased coding rates in order to maintain a substantially stable symbol rate to the user for each time multiplex cycle of users.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种基于卫星通信系统的降雨负担分摊的系统和方法。 解决方案：系统可以通过改变数据速率来改善与特定用户的通信链路。 可以通过降低编码率来补偿低信号质量来改变数据速率。 在多用户时间多路复用可用通信带宽的时间复用通信系统中，系统可以部分地基于编码速率同时调整分配给用户的时间。 可以增加分配给用户的时间以减少编码速率，以便在用户的每个时间多路复用周期中为用户维持基本稳定的符号率。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：WO0113541A3

公开(公告)日：2002-03-07

申请号：PCT/US0022734

申请日：2000-08-16

Applicant: QUALCOMM INC

Inventor： SCHIFF LEONARD N

IPC: H04B7/15 ,  H04B7/185 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00

CPC classification number: H04B7/185 ,  H04B7/18513 ,  H04B7/18567 ,  H04J13/0048

Abstract: A method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m , that does not require a high powered paging channel. The method includes the steps of generating a paging channel message which is combined with a Walsh sequence having a length greater than or equal to 2 m , and transmitting the paging channel message at a data rate of less than 480 bits per second (bps). By transmitting the paging channel message at a low data rate and integrating collected energy over a period longer by a factor on the order of 1000, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence on the order of 65536 chips in length, and the data rate is less than 10 bps.

Abstract translation: 一种在不需要高功率寻呼信道的采用预定长度m m的正交信道化码（例如沃尔什序列）的通信系统中进行深度寻呼的方法。 该方法包括以下步骤：产生与具有大于或等于2m的长度的沃尔什序列组合的寻呼信道消息，并以小于480的数据速率发送寻呼信道消息 每秒位数（bps）。 通过以低数据速率发送寻呼信道消息并将收集的能量在长达1000个数量级的时间段内集成，该消息能够穿透建筑物和其他结构或高衰减环境，从而允许一个成功地寻呼 在这样的结构或区域内的用户终端。 优选地，使用长度为65536个码片的辅助沃尔什序列来形成寻呼信道消息，并且数据速率小于10bps。

公开(公告)号：WO2004002016A3

公开(公告)日：2004-03-18

申请号：PCT/US0319936

申请日：2003-06-25

Applicant: QUALCOMM INC

Inventor： SCHIFF LEONARD N

IPC: H04B7/19 ,  H04B7/185

CPC classification number: H04B7/18513 ,  H04B7/18534

Abstract: A satellite is linked to a number of gateways by a number of feeder links. When a degraded link is detected among the feeder links, communications are switched from the degraded link to a diversity link shared among the feeder links. In one embodiment, said diversity link is connected to a diversity gateway located outside a service area of the satellite. In another embodiment, the diversity link comprises channels distributed among the feeder links within the service area.

Abstract translation: 卫星通过多个馈线链路连接到多个网关。 当在馈线链路之间检测到恶化的链路时，通信从劣化的链路切换到在馈线链路之间共享的分集链路。 在一个实施例中，所述分集链路连接到位于卫星的服务区域之外的分集网关。 在另一个实施例中，分集链路包括分布在服务区域内的馈线链路之间的信道。

公开(公告)号：IN760CHN2014A

公开(公告)日：2015-04-03

申请号：IN760CHN2014

申请日：2014-01-30

Applicant: QUALCOMM INC

Inventor： JALALI AHMAD ,  SCHIFF LEONARD N ,  AMES WILLIAM G

IPC: H04B7/185

Abstract: An air to ground communication system provides internet access to aircraft from ground based stations. The air to ground system shares spectrum with uplink portions of a satellite communication spectrum. Interference mitigation techniques are employed to avoid interference between the ground based communications and satellite communications. Fade mitigation techniques are employed to provide communication to aircraft at low angles of elevation in the presence of rain.

公开(公告)号：HK1122144A1

公开(公告)日：2009-05-08

申请号：HK09100860

申请日：2006-05-17

Applicant: QUALCOMM INC PATENT DEPT

Inventor： SCHIFF LEONARD N

IPC: H04B7/15 ,  H04B7/185 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00

Abstract: A method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m, that does not require a high powered paging channel. The method includes the steps of generating a paging channel message which is combined with a Walsh sequence having a length greater than or equal to 2 m , and transmitting the paging channel message at a data rate of less than 480 bits per second (bps). By transmitting the paging channel message at a low data rate and integrating collected energy over a period longer by a factor on the order of 1000, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence on the order of 65536 chips in length, and the data rate is less than 10 bps.