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1. 发明申请

WO2004010609A1 A SATELLITE COMMUNICATION SYSTEM WITH PRIMARY AND BACK-UP MULTI-BEAM SATELLITES 审中-公开
标题翻译：一种带有主备备用多波束卫星的卫星通信系统
公开(公告)号：WO2004010609A1
公开(公告)日：2004-01-29
申请号：PCT/US2003/023068
申请日：2003-07-23
申请人： QUALCOMM, INCORPORATED
发明人： SCHIFF, Leonard, N. , MILLER, David, S.
IPC分类号： H04B7/185
CPC分类号： H04B7/18519
摘要： A satellite communication system for providing communications between user terminals and gateways constituted with m primary satellites. In one embodiment, n back up satellites are also provided. Further, each satellite, primary or back-up, is equipped to project N/m beams onto and across an area in a loosely-packed array manner. M of the m primary and n back-up satellites collectively create N beam spots to cover the area. Moreover, each sub-area is covered by a beam spot separated from another sub-area covered by another beam spot by one beam width. Each satellite is also equipped to facilitate communication over 1 of m band of frequencies on one beam. AS a result, any of the m primary satellites may be efficiently replaced on demand by a selected one of the n back-up satellites. The gateways and user terminals are configured to communicate signals through or with both or either the primary and back-up satellites.
摘要翻译：一种卫星通信系统，用于在由m个主卫星构成的用户终端和网关之间提供通信。在一个实施例中，还提供n个备用卫星。此外，每个卫星，主要或备用装备，以松散排列的方式将N / m波束投射到一个区域上并跨越一个区域。 m个主要和n个后备卫星的M共同创造N个光束点以覆盖该区域。此外，每个子区域被从另一个光束点覆盖一个光束宽度的另一个子区域分离的光束点覆盖。每个卫星还配备了一个波束上的m个频带范围内的通信。结果，可以根据需要由n个备用卫星中的所选择的一个有效地替换任何一个m个主卫星。网关和用户终端被配置为通过或与主卫星和后备卫星两者或任一者传送信号。

2. 发明申请

WO2004002022A1 METHOD FOR RETURN LINK SYCHRONISATION IN AN ORTHOGONAL CDMA SATELLITE SYSTEM 审中-公开
标题翻译：用于在正交CDMA卫星系统中返回链路同步的方法
公开(公告)号：WO2004002022A1
公开(公告)日：2003-12-31
申请号：PCT/US2003/020063
申请日：2003-06-24
申请人： QUALCOMM INCORPORATED
发明人： MILLER, David, S. , SCHIFF, Leonard, N.
IPC分类号： H04B7/26
CPC分类号： H04B7/216 , H04B2201/70702 , H04W56/0035 , H04W56/0045 , H04W92/10
摘要： A technique for realizing code synchronism to enable the application of modulation codes needed for implementing orthogonal CDMA modulation for reverse link communications. In a satellite communications system using orthogonal CDMA in the reverse link, a ground station transmits a first pilot signal in the forward link direction, which is acquired and tracked by a terminal or remote station, and used in recovering carrier phase and modulation chip clock timing. The terminal then derives a transmission carrier frequency and chip clock timing to be used, from the recovered forward pilot carrier frequency and chip clock timing. The terminal transmits a second pilot signal in the reverse link direction which, after being received and retransmitted by a satellite, is detected at the ground station. Terminals have the ability to advance or retard the timing of their signals for transmission relative to the timing derived from the forward link pilot signal. The ground station tracks timing, and in some embodiments also tracks frequency, of the terminal pilot signal, and compares these parameters to a reverse link reference signal. Based at least in part on the results of the comparison, the ground station transmits a control signal on the forward link to each terminal, thereby commanding the terminal to advance or retard its respective transmission timing. Each terminal then adjusts its transmission timing and/or frequency in small increments to maintain a desired level of time alignment with the ground station.
摘要翻译：一种用于实现代码同步以实现用于实现用于反向链路通信的正交CDMA调制所需的调制码的技术。在反向链路中使用正交CDMA的卫星通信系统中，地面站在前向链路方向上发送由终端或远程站获取和跟踪的第一导频信号，并用于恢复载波相位和调制芯片时钟定时。然后，终端从恢复的前向导频载波频率和芯片时钟定时导出要使用的传输载波频率和码片时钟定时。终端在地面站检测到卫星接收和重传后的反向链路方向上发送第二导频信号。终端具有相对于从前向链路导频信号导出的定时，推进或延迟用于传输的信号的定时的能力。地面站跟踪终端导频信号的定时，并且在一些实施例中也跟踪频率，并且将这些参数与反向链路参考信号进行比较。至少部分地基于比较的结果，地面站在前向链路上发送控制信号到每个终端，从而命令终端推进或延迟其各自的发送定时。然后每个终端以小增量调整其发射定时和/或频率，以保持与地面站的时间对准所需的水平。

3. 发明申请

WO2007084956A1 WIRELESS BROADBAND COMMUNICATIONS NETWORK USING MESSAGE DIFFUSION ARCHITECTURE 审中-公开
标题翻译：无线宽带通信网络使用信息扩展架构
公开(公告)号：WO2007084956A1
公开(公告)日：2007-07-26
申请号：PCT/US2007/060714
申请日：2007-01-18
申请人： QUALCOMM INCORPORATED , SCHIFF, Leonard, Norman , MILLER, David, S. , CHAKRAVARTY, Sumantra
发明人： SCHIFF, Leonard, Norman , MILLER, David, S. , CHAKRAVARTY, Sumantra
IPC分类号： H04Q7/32 , H04L12/28 , H04L12/56
CPC分类号： H04W52/46 , H04W4/12 , H04W64/00 , H04W88/04
摘要： A broadband terrestrial message delivery system includes a plurality of wireless communication devices (WCDs), each including a receiver and transmitter, the WCDs capable of not only receiving messages destined for a subscriber associated with a particular WCD, but further capable of acting as a relay point to move messages to and from other subscribers. Message diffusion includes relaying the messages in accordance with an earmark that specifies both the total number of times (N) a message is to be repeated, and the number of times (i) the received message has already been repeated. Methods of improving the spectral efficiency of such a message diffusion architecture include adding a propagation ring width control parameter (J) to the earmark such that a WCD acting in relay mode transmits no more than J repetitions of the message; and providing sectorization such that several sectorized message pathways in a cell may be simultaneously active.
摘要翻译：宽带地面消息传送系统包括多个无线通信设备（WCD），每个无线通信设备（WCD）包括接收机和发射机，该WCD能够不仅接收去往与特定WCD相关联的订户的消息，而且能够充当中继指向其他用户移动消息。消息扩散包括根据指定消息要重复的总次数（N）的指定公告和接收到的消息已被重复的次数（i）的中继消息。提高这种消息扩散架构的频谱效率的方法包括将传播环宽度控制参数（J）添加到指定项目，使得以中继模式行动的WCD传送不超过J个消息的重复; 并且提供扇区化，使得小区中的几个分段消息路径可以同时活动。

4. 发明申请

WO1998014026A1 METHOD AND APPARATUS FOR ADJACENT SERVICE AREA HANDOFF IN COMMUNICATION SYSTEMS 审中-公开
标题翻译：通信系统中相邻服务区域切换的方法和装置
公开(公告)号：WO1998014026A1
公开(公告)日：1998-04-02
申请号：PCT/US1997016976
申请日：1997-09-23
申请人： QUALCOMM INCORPORATED
发明人： QUALCOMM INCORPORATED , SCHIFF, Leonard, N. , MILLER, David, S.
IPC分类号： H04Q07/38
CPC分类号： H04B7/18541
摘要： A handoff technique in which system users detect transitions in service between a current service area (B10, S4) and an adjacent service area (B2, S5), and request a forward link channel in the new service area (B2, S5) when a detected signal strength for the new service area exceeds predetermined threshold levels. The forward communications link in the current service area is maintained until the strength of the new service area signal (B2, S5) reaches a certain level and appropriate channel quality is confirmed, as based on various known criteria. Typically, service area transitions are detected using the signal strength of pilot or paging signals associated with service areas, which are used to determine a relative signal strength of new service area signals. Pilot signal level adjustments used to counter roll-off effects are detected and compensated for in comparing signal levels. To minimize the burden on system resources, new service area signals are not selectable until a minimum time has passed, or a minimum change in energy from a prior pilot signal is detected. In addition, communications using the previous service area can be dropped almost immediately upon engaging the new service area.
摘要翻译：一种切换技术，其中系统用户检测当前服务区域（B10，S4）和相邻服务区域（B2，S5）之间的服务转换，并且当一个服务区域（B2，S5）中的前向链路信道新服务区域的检测信号强度超过预定阈值水平。根据各种已知的标准，保持当前服务区域中的正向通信链路，直到新服务区域信号（B2，S5）的强度达到一定水平并确认适当的信道质量。通常，使用与服务区域相关联的导频或寻呼信号的信号强度检测服务区转换，其用于确定新服务区信号的相对信号强度。在比较信号电平时，检测并补偿用于计算滚降效果的导频信号电平调整。为了最小化系统资源的负担，新的服务区域信号在最小时间过去之前是不可选择的，或者是从先前的导频信号中检测到能量的最小变化。此外，使用先前服务区域的通信可以在新服务区域几乎立即被丢弃。

5. 发明申请

WO1995035638A1 LAYERED CHANNEL ELEMENT IN A BASE STATION MODEM FOR A CDMA CELLULAR COMMUNICATION SYSTEM 审中-公开
标题翻译：用于CDMA蜂窝通信系统的基站调制解调器中的分层信道单元
公开(公告)号：WO1995035638A1
公开(公告)日：1995-12-28
申请号：PCT/US1995007684
申请日：1995-06-14
申请人： QUALCOMM INCORPORATED
发明人： QUALCOMM INCORPORATED , MILLER, David, S.
IPC分类号： H04Q07/30
CPC分类号： H04W88/08
摘要： The invention provides a layered channel software element (200) which supervises the operation of channel element modem resources (59) in a CDMA cellular telephone system (8) that includes forward channels (20a, 22a) for conveying message and signalling data from a CDMA system base station (12) to mobile units (16, 18) and reverse channels (20b, 22b) for conveying message and signalling data from mobile units (16, 18) to base stations (12, 14). Each channel is implemented in a channel element (59) including a general purpose processor (60) and a modem application-specific integrated circuit ASIC (62). The layered channel software element (200) executes on the general processor (60). The layered channel software element (200) provides a structure and function for transferring message and signalling data between the telecommunication system (10) and the modem ASIC (62) via channel element controller (44), and also for establishing channel operations by providing channel configuration information to the modem ASIC (62).
摘要翻译：本发明提供一种分层信道软件元件（200），其在CDMA蜂窝电话系统（8）中监视信道元素调制解调器资源（59）的操作，CDMA蜂窝电话系统（8）包括用于传送来自CDMA的消息和信令数据的前向信道（20a，22a）系统基站（12）到移动单元（16,18）和用于将消息和信令数据从移动单元（16,18）传送到基站（12,14）的反向信道（20b，22b）。每个信道在包括通用处理器（60）和调制解调器专用集成电路ASIC（62）的信道元件（59）中实现。分层通道软件元件（200）在通用处理器（60）上执行。分层信道软件元件（200）提供用于经由信道单元控制器（44）在电信系统（10）和调制解调器ASIC（62）之间传送消息和信令数据的结构和功能，并且还用于通过提供信道来建立信道操作配置信息到调制解调器ASIC（62）。

6. 发明申请

WO1996031960A1 A MULTI-USER COMMUNICATION SYSTEM ARCHITECTURE WITH DISTRIBUTED RECEIVERS 审中-公开
标题翻译：具有分布式接收器的多用户通信系统架构
公开(公告)号：WO1996031960A1
公开(公告)日：1996-10-10
申请号：PCT/US1996004336
申请日：1996-03-29
申请人： QUALCOMM INCORPORATED
发明人： QUALCOMM INCORPORATED , MILLER, David, S.
IPC分类号： H04B07/26
CPC分类号： H04B7/0891 , H04B7/0845 , H04B7/216 , H04B7/2628
摘要： Method and apparatus for receiving signals in gateways for satellite repeater type spread spectrum communication systems making more efficient use of data transfer capacity and diversity processing. Several communication signals are received by multiple analog receivers (62M) and converted into digital format. The digital communication signals are transferred from each analog receiver (62M) into a series of demodulation or FHT modules (164) in which they are first despread into encoded data symbols using predetermined PN coding sequences, and then mapped into symbol energy metrics using orthogonal transformers (192), such as fast Hadamard transformers. The transformation output for each communication channel from each analog receiver (62M) is input to a single metric receiver (166N) for a data channel or subscriber, where it is subjected to conventional metric signal processing to reconstruct the data. A set of dedicated modules (164MN) is coupled to each analog receiver (62M) for handling each diversity path or subscriber active communication system channel being transferred through that receiver or analog path. Each demodulation or FHT module (164MN) comprises despreading elements (176, 178) and FHT components (192) that are easily distributed in processing arrays within the gateway.
摘要翻译：用于在卫星中继器类型扩频通信系统的网关中接收信号的方法和装置，从而更有效地利用数据传输容量和分集处理。多个模拟接收机（62M）接收多个通信信号并转换为数字格式。数字通信信号从每个模拟接收机（62M）传送到一系列解调或FHT模块（164），其中它们首先使用预定的PN编码序列解扩展成编码数据符号，然后使用正交变换器映射到符号能量度量（192），如快速Hadamard变压器。来自每个模拟接收机（62M）的每个通信信道的变换输出被输入到用于数据信道或用户的单个度量接收机（166N），在那里它经受常规度量信号处理以重构数据。一组专用模块（164MN）耦合到每个模拟接收器（62M），用于处理通过该接收器或模拟路径传送的每个分集路径或用户主动通信系统信道。每个解调或FHT模块（164MN）包括易于分布在网关内的处理阵列中的解扩元件（176,178）和FHT组件（192）。

7. 发明申请

WO1996027250A1 METHOD AND APPARATUS FOR PROVIDING VARIABLE RATE DATA IN A COMMUNICATIONS SYSTEM USING NON-ORTHOGONAL OVERFLOW CHANNELS 审中-公开
标题翻译：在非正交流量通道的通信系统中提供可变速率数据的方法和装置
公开(公告)号：WO1996027250A1
公开(公告)日：1996-09-06
申请号：PCT/US1996002607
申请日：1996-02-28
申请人： QUALCOMM INCORPORATED
发明人： QUALCOMM INCORPORATED , ZEHAVI, Ephraim , MILLER, David, S. , LAROCCA, Judith
IPC分类号： H04J11/00
CPC分类号： H04L1/0071 , H04J13/0048 , H04J13/16
摘要： The present invention discloses a variable rate transmission system wherein a packet of variable rate data is modulated in accordance with a traffic channel sequence supplied by a traffic PN generator (63) if the capacity of said traffic channel is greater than or equal to said data rate of the packet. If the capacity of said traffic channel is less than said data rate, the packet of variable rate data is modulated in accordance with the traffic channel sequence supplied by the traffic PN generator (63) and in accordance with at least one overflow channel sequence supplied by an overflow channel generator (65). The present invention further discloses a receiving system for receiving variable rate data where a received packet of variable rate data is demodulated in accordance with a traffic channel sequence supplied by a traffic PN generator (104) if the capacity of said traffic channel is greater than or equal to a data rate of said packet. If the capacity of said traffic channel is less than said data rate of the packet of variable rate data, the received packet is demodulated in accordance with a traffic channel sequence supplied by a traffic PN generator (104) and in accordance with at least one overflow channel sequence supplied by an overflow channel generator (120).
摘要翻译：本发明公开了一种可变速率传输系统，其中如果所述业务信道的容量大于或等于所述数据速率，则根据由业务PN发生器（63）提供的业务信道序列来调制可变速率数据分组的包。如果所述业务信道的容量小于所述数据速率，则根据由业务PN发生器（63）提供的业务信道序列，并根据至少一个溢出信道序列来提供可变速率数据分组溢出通道发生器（65）。本发明还公开了一种用于接收可变速率数据的接收系统，其中，如果所述业务信道的容量大于或等于，则根据由业务PN发生器（104）提供的业务信道序列来解调所接收的可变速率数据分组，等于所述分组的数据速率。如果所述业务信道的容量小于可变速率数据分组的所述数据速率，则根据由业务PN发生器（104）提供的业务信道序列并根据至少一个溢出来解调接收到的分组信道序列由溢出信道发生器（120）提供。

8. 发明授权

EP1105981B1 SYSTEM AND METHOD FOR RESOLVING FREQUENCY AND TIMING UNCERTAINTY IN ACCESS CHANNEL ACQUISITION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM 有权
标题翻译： DEVICE AND METHOD FOR时间和访问通道捕获频率不确定度在扩频通信系统出售
公开(公告)号：EP1105981B1
公开(公告)日：2008-08-27
申请号：EP99943990.4
申请日：1999-08-27
申请人： QUALCOMM INCORPORATED
发明人： CHOCKALINGAM, Ananthanarayanan , TENNY, Nathan, E. , MILLER, David, S.
IPC分类号： H04B7/216
CPC分类号： H04B7/216
摘要： A system for reducing the number of required frequency and time hypotheses to acquire an access transmission in a satellite communication system. By reducing the number of required hypotheses, the amount of hardware required to acquire the access transmission is reduced. The method of the present invention reduces the number of required hypotheses by reducing the range of possible frequency and timing values of the access transmission. The range of possible frequency and timing values is reduced by determining the frequency and time uncertainties over individual satellite beams rather than over an entire satellite footprint.

9. 发明授权

EP1008271B1 METHOD AND APPARATUS FOR ADJACENT SERVICE AREA HANDOFF IN COMMUNICATION SYSTEMS 失效
标题翻译： SAME中心站相邻覆盖区之间的方法和装置NEXT RICH
公开(公告)号：EP1008271B1
公开(公告)日：2008-08-20
申请号：EP97945252.1
申请日：1997-09-23
申请人： QUALCOMM INCORPORATED
发明人： SCHIFF, Leonard, N. , MILLER, David, S.
IPC分类号： H04Q7/38
CPC分类号： H04B7/18541
摘要： A handoff technique in which system users detect transitions in service between a current service area (B10, S4) and an adjacent service area (B2, S5), and request a forward link channel in the new service area (B2, S5) when a detected signal strength for the new service area exceeds predetermined threshold levels. The forward communications link in the current service area is maintained until the strength of the new service area signal (B2, S5) reaches a certain level and appropriate channel quality is confirmed, as based on various known criteria. Typically, service area transitions are detected using the signal strength of pilot or paging signals associated with service areas, which are used to determine a relative signal strength of new service area signals. Pilot signal level adjustments used to counter roll-off effects are detected and compensated for in comparing signal levels. To minimize the burden on system resources, new service area signals are not selectable until a minimum time has passed, or a minimum change in energy from a prior pilot signal is detected. In addition, communications using the previous service area can be dropped almost immediately upon engaging the new service area.

10. 发明公开

EP1525681A1 A SATELLITE COMMUNICATION SYSTEM WITH PRIMARY AND BACK-UP MULTI-BEAM SATELLITES 审中-公开
标题翻译：伯和复发多卫星卫星通信系统
公开(公告)号：EP1525681A1
公开(公告)日：2005-04-27
申请号：EP03765995.0
申请日：2003-07-23
申请人： Qualcomm, Incorporated
发明人： SCHIFF, Leonard, N. , MILLER, David, S.
IPC分类号： H04B7/185
CPC分类号： H04B7/18519
摘要： A satellite communication system for providing communications between user terminals and gateways constituted with m primary satellites. In one embodiment, n back up satellites are also provided. Further, each satellite, primary or back-up, is equipped to project N/m beams onto and across an area in a loosely-packed array manner. M of the m primary and n back-up satellites collectively create N beam spots to cover the area. Moreover, each sub-area is covered by a beam spot separated from another sub-area covered by another beam spot by one beam width. Each satellite is also equipped to facilitate communication over 1 of m band of frequencies on one beam. AS a result, any of the m primary satellites may be efficiently replaced on demand by a selected one of the n back-up satellites. The gateways and user terminals are configured to communicate signals through or with both or either the primary and back-up satellites.

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