公开(公告)号：US09325677B2

公开(公告)日：2016-04-26

申请号：US12781585

申请日：2010-05-17

申请人： David G. Steer ,  Stephen McCann ,  Dongsheng Yu

发明人： David G. Steer ,  Stephen McCann ,  Dongsheng Yu

IPC分类号： G06F21/10 ,  H04W12/00 ,  H04L12/00 ,  H04L29/06 ,  G06F21/62 ,  G06F21/31 ,  G06F21/44 ,  G06F17/30 ,  H04L9/08 ,  H04L9/32 ,  H04W12/04 ,  H04W12/06

CPC分类号： H04L63/06 ,  G06F17/30595 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/6218 ,  H04L9/0825 ,  H04L9/3263 ,  H04L9/3271 ,  H04L63/0428 ,  H04L63/0471 ,  H04L63/0823 ,  H04L63/0869 ,  H04L63/0876 ,  H04L2463/062 ,  H04N21/238 ,  H04W12/04 ,  H04W12/06

摘要： A telecommunications device is provided. The telecommunications device comprises a processor configured such that the device sends a first message to a database management component, the first message containing a communications key encrypted by a database management component key. The processor is further configured such that the device receives a second message from the database management component, the second message encrypted by the communications key. The processor is further configured such that, when the device is able to decrypt the second message, the device considers the database management component to be legitimate.

摘要翻译： 提供电信设备。 电信设备包括被配置为使得设备向数据库管理组件发送第一消息的处理器，该第一消息包含由数据库管理组件密钥加密的通信密钥。 处理器被进一步配置成使得设备从数据库管理组件接收第二消息，第二消息由通信密钥加密。 处理器被进一步配置为使得当设备能够解密第二消息时，设备认为数据库管理组件是合法的。

公开(公告)号：US09042882B2

公开(公告)日：2015-05-26

申请号：US13636483

申请日：2011-08-04

申请人： Shalini Periyalwar ,  Mark Pecen ,  David G. Steer

发明人： Shalini Periyalwar ,  Mark Pecen ,  David G. Steer

IPC分类号： H04W4/00 ,  H04W76/02 ,  H04W88/06 ,  H04W80/00

CPC分类号： H04W76/02 ,  H04W76/15 ,  H04W76/16 ,  H04W80/00 ,  H04W88/06

摘要： A device and method are provided for concurrently using a plurality of radio access technologies (RATs) to support a wireless-enabled communications session. A set of data is processed at a client node to identify a subset of priority data. The set of data and the subset of priority data are respectively provided to a first and second protocol stack, which correspond to a first and second RAT. The first and second protocol stacks are then used to control the transmission of a first and second set of transmitted data, which in turn respectively comprise the set of data and the subset of priority data. The first and second sets of transmitted data are received by an access node, which uses corresponding first and second protocol stacks to control their reception. The first and second sets of transmitted data are then processed to generate a set of received data.

摘要翻译： 提供了一种用于同时使用多个无线接入技术（RAT）来支持启用无线通信会话的设备和方法。 在客户端节点处处理一组数据以识别优先级数据的子集。 该组数据和优先级数据的子集分别提供给对应于第一和第二RAT的第一和第二协议栈。 然后，第一和第二协议栈用于控制第一组和第二组传输数据的传输，其又分别包括该组数据和优先级数据子集。 第一和第二组发送数据由接入节点接收，接入节点使用相应的第一和第二协议栈来控制它们的接收。 然后处理第一组和第二组发送数据以生成一组接收数据。

公开(公告)号：US08843058B2

公开(公告)日：2014-09-23

申请号：US12522870

申请日：2008-01-11

申请人： Gamini Senarath ,  Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Derek Yu ,  David G. Steer ,  Guo-Qiang Q. Wang

发明人： Gamini Senarath ,  Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Derek Yu ,  David G. Steer ,  Guo-Qiang Q. Wang

IPC分类号： H04B7/15 ,  H04B7/26 ,  H04W56/00 ,  H04W88/04 ,  H04W60/00 ,  H04W16/26 ,  H04W84/00 ,  H04W36/08

CPC分类号： H04W88/04 ,  H04B7/15507 ,  H04B7/2606 ,  H04W16/26 ,  H04W36/08 ,  H04W56/0015 ,  H04W60/00 ,  H04W84/005

摘要： A mobile relay system for supporting communications between a fixed station and mobile terminals comprising a plurality of mobile relay stations that are associated with each other and provided on a moving platform, wherein each of the plurality of mobile relay stations is capable of facilitating communications with mobile terminals within communication range and at least one of the plurality of mobile relay stations is further capable of facilitating communications with a fixed station within communication range of the at least one of the plurality of mobile relay stations.

摘要翻译： 一种用于支持固定站与移动终端之间的通信的移动中继系统，所述移动终端包括彼此相关联并提供在移动平台上的多个移动中继站，其中所述多个移动中继站中的每一个能够促进与移动 通信范围内的终端和多个移动中继站中的至少一个还能够促进与多个移动中继站中的至少一个移动中继站的通信范围内的固定站的通信。

公开(公告)号：US20140148152A1

公开(公告)日：2014-05-29

申请号：US13636483

申请日：2011-08-04

申请人： Shalini Periyalwar ,  Mark Pecen ,  David G. Steer

发明人： Shalini Periyalwar ,  Mark Pecen ,  David G. Steer

IPC分类号： H04W76/02

CPC分类号： H04W76/02 ,  H04W76/15 ,  H04W76/16 ,  H04W80/00 ,  H04W88/06

摘要： A device and method are provided for concurrently using a plurality of radio access technologies (RATs) to support a wireless-enabled communications session. A set of data is processed at a client node to identify a subset of priority data. The set of data and the subset of priority data are respectively provided to a first and second protocol stack, which correspond to a first and second RAT. The first and second protocol stacks are then used to control the transmission of a first and second set of transmitted data, which in turn respectively comprise the set of data and the subset of priority data. The first and second sets of transmitted data are received by an access node, which uses corresponding first and second protocol stacks to control their reception. The first and second sets of transmitted data are then processed to generate a set of received data.

公开(公告)号：US20110299615A1

公开(公告)日：2011-12-08

申请号：US13210623

申请日：2011-08-16

申请人： David G. Steer ,  Curt Dodd ,  Ming Jia

发明人： David G. Steer ,  Curt Dodd ,  Ming Jia

IPC分类号： H04L27/28

CPC分类号： H04L27/3488 ,  H04L1/0618 ,  H04L27/3483

摘要： The present invention employs hierarchical modulation to simultaneously transmit data over different modulation layers using a carrier RF signal. Each modulation layer may be of a higher or lower order than the other modulation layers. Certain embodiments of the present invention may transmit different information on the different modulation layers. Other embodiments of the present invention may use the different layers for processing information differently.

摘要翻译： 本发明采用分级调制，使用载波RF信号在不同的调制层上同时发送数据。 每个调制层可以具有比其它调制层更高或更低的阶数。 本发明的某些实施例可以在不同的调制层上发送不同的信息。 本发明的其他实施例可以使用不同的层来不同地处理信息。

公开(公告)号：US20090016258A1

公开(公告)日：2009-01-15

申请号：US12172890

申请日：2008-07-14

申请人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

发明人： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Gamini Senarath ,  Derek Yu ,  David G. Steer

IPC分类号： H04B7/14

CPC分类号： H04W40/12 ,  H04B7/2606 ,  H04L12/4633 ,  H04L47/24 ,  H04L47/28 ,  H04L69/22 ,  H04W16/26 ,  H04W28/18 ,  H04W28/24 ,  H04W40/22 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/12 ,  H04W84/047 ,  H04W84/12

摘要： One or more relay stations may be employed along a wireless communication access path between an ingress station and an egress station. A logical communication tunnel is established between the ingress and egress stations through any number of intermediate relay stations to handle session flows of PDUs. As PDUs arrive, the ingress station may determine and add scheduling information to the PDUs before they are delivered to the downstream intermediate relay stations or egress stations. The scheduling information is used by the downstream stations to schedule the PDUs for further delivery. The scheduling information may also be used by the egress station to schedule the PDUs for delivery. The scheduling information added to the PDU by the ingress station bears on a QoS class associated with the PDU, a deadline for the egress station to deliver the PDU, or a combination thereof.

公开(公告)号：US07289427B2

公开(公告)日：2007-10-30

申请号：US11515840

申请日：2006-09-06

申请人： David G. Steer ,  Shalini S. Periyalwar ,  Koon Hoo Teo ,  Yoon Chae Cheong ,  Bassam M. Hashem

发明人： David G. Steer ,  Shalini S. Periyalwar ,  Koon Hoo Teo ,  Yoon Chae Cheong ,  Bassam M. Hashem

IPC分类号： H04J11/00

CPC分类号： H04L1/1812 ,  H04L1/1845 ,  H04L1/1867 ,  H04L27/2602

摘要： A method and apparatus are provided for error correction in a communication system employing Orthogonal Frequency Division Multiplexing. When a remote unit receives an OFDM symbol, a retransmission indicator bit is examined to determine whether the symbol is an original symbol or a retransmitted symbol. If it is a retransmitted symbol and the remote unit has a corresponding symbol stored in memory, then the received symbol is soft-combined with the stored symbol. Each packet in the symbol, either the received symbol if original or the soft-combined symbol if retransmitted, is examined by the remote unit. If the remote unit determines that a particular packet is intended for the remote unit, but can not determine the contents of the payload of the packet, the remote unit sends a retransmission request to the base station for retransmission of the symbol. The base station determines whether the entire symbol or merely the packet should be retransmitted, based on such considerations as the size of the packet or whether there are additional requests for the symbol. The invention allows both soft-symbol combining and Automatic Repeat Request to be used as error correction techniques.

摘要翻译： 在采用正交频分复用的通信系统中提供了用于纠错的方法和装置。 当远程单元接收到OFDM符号时，检查重传指示符位以确定符号是原始符号还是重传符号。 如果是重传符号，并且远程单元具有存储在存储器中的对应符号，则接收的符号与存储的符号软组合。 符号中的每个数据包，如果是原始的接收到的符号，或者如果被重新发送，则由软组合符号被远程单元检查。 如果远程单元确定特定分组旨在用于远程单元，但是不能确定分组的有效载荷的内容，则远程单元向基站发送重传请求以重传该符号。 基站基于诸如分组的大小或者是否存在对该符号的附加请求的考虑来确定是否应该重传整个符号或仅重新分组。 本发明允许将软符号组合和自动重复请求用作纠错技术。

公开(公告)号：US06985545B2

公开(公告)日：2006-01-10

申请号：US09746929

申请日：2000-12-26

申请人： Koon H. Teo ,  Shiquan Wu ,  David G. Steer

发明人： Koon H. Teo ,  Shiquan Wu ,  David G. Steer

IPC分类号： H04B1/10

CPC分类号： H04W16/14 ,  H04B1/406 ,  H04B1/7105 ,  H04W4/18 ,  H04W88/02

摘要： An RF radio receiver utilizing wideband RF technology, a wideband digital IF (channelizer) tuner, a common digitizing rate, and multi-user detection (MUD) processes a superposed RF signal to allow simultaneous reception of two or more RF signals sharing overlapping frequency spectrum (RF bandwidth). The RF radio receiver is particularly effective for two or more RF signals of differing RF channel bandwidth and can also receive signals which accord to different air interface standards. The use of a common digitizing rate provides for oversampling of at least one of the RF signals for more accurate decoding and allows for a synchronized signal (i.e. at a common rate) to be used in decoding, and in particular multi-user decoding of other RF signals.

公开(公告)号：US06701129B1

公开(公告)日：2004-03-02

申请号：US09670342

申请日：2000-09-27

申请人： Bassam M. Hashem ,  Shalini S. Periyalwar ,  David G. Steer

发明人： Bassam M. Hashem ,  Shalini S. Periyalwar ,  David G. Steer

IPC分类号： H04B1700

CPC分类号： H04L1/0029 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L27/2608 ,  H04W24/00 ,  H04W28/06 ,  H04W28/18

摘要： A method is provided for adapting modulation schemes to changing channel quality with reduced overhead signalling. A remote unit measures the channel quality of a radio channel along which a signal from a base station reached the remote unit. Based on the channel quality, the remote unit determines a desired set of transmission parameters from a list of sets of transmission parameters. The remote unit determines a difference in position within the list between the current set of transmission parameters and the desired set of transmission parameters. The remote unit transmits the difference to the base station, which selects a new set of transmission parameters using the current set of transmission parameters and the difference. The method requires little signalling between the remote unit and the base station, and is particularly beneficial in communication systems employing many sub-carriers, such as OFDM systems.

摘要翻译： 提供了一种用于通过减少开销信令使调制方案适应于改变信道质量的方法。 远程单元测量来自基站的信号到达远程单元的无线电信道的信道质量。 基于信道质量，远程单元从传输参数集合的列表确定期望的一组传输参数。 远程单元确定列表内当前传输参数集合与所需传输参数集合之间的位置差异。 远程单元将差异发送到基站，其使用当前传输参数集合和差异来选择新的传输参数集合。 该方法在远程单元和基站之间几乎不需要信令，并且在采用诸如OFDM系统的许多子载波的通信系统中特别有利。

公开(公告)号：US06249245B1

公开(公告)日：2001-06-19

申请号：US09078325

申请日：1998-05-14

申请人： J. Michael Watters ,  Leo Strawczynski ,  David G. Steer

发明人： J. Michael Watters ,  Leo Strawczynski ,  David G. Steer

IPC分类号： G01S510

CPC分类号： G01S5/0027 ,  G01S5/009 ,  G01S19/41 ,  G01S2205/008

摘要： Aspects of global positioning system (GPS) technology and cellular technology are combined in order to provide an effective and efficient position location system. In a first aspect of the invention, a cellular network is utilized to collect differential GPS error correction data, which is forwarded to a mobile terminal over the cellular network. The mobile terminal receives this data, along with GPS pseudoranges using a GPS receiver, and calculates its position using this information. According to a second aspect, when the requisite number of GPS satellites are not in view of the mobile terminal, then a GPS pseudosatellite signal, broadcast from a base station of the cellular network, is received by the mobile terminal and processed as a substitute for the missing GPS satellite signal. A third aspect involves calculating position using GPS when the requisite number of GPS satellites are in view of a GPS receiver, but when the requisite number of GPS satellites are not in view of the GPS receiver, then position is calculated using the cellular network infrastructure. When the requisite number of GPS satellites come back into view of the GPS receiver, then position is again calculated using GPS. A fourth aspect involves using cellular signals already being transmitted from base stations to terminals in a cellular network to calculate a round trip delay, from which a distance calculation between the base station and the terminal can be made. This distance calculation substitutes for a missing GPS satellite signal.

摘要翻译： 结合全球定位系统（GPS）技术和蜂窝技术的方面，以提供有效和高效的位置定位系统。 在本发明的第一方面，蜂窝网络用于收集通过蜂窝网络转发到移动终端的差分GPS误差校正数据。 移动终端使用GPS接收机连同GPS伪距接收该数据，并使用该信息来计算其位置。 根据第二方面，当GPS卫星的必需数量不在移动终端时，则由蜂窝网络的基站广播的GPS伪卫星信号被移动终端接收并被处理为 缺少GPS卫星信号。 第三方面涉及当GPS卫星的所需数量是GPS接收机时，使用GPS计算位置，但是当GPS卫星的必要数量不在GPS接收机时，则使用蜂窝网络基础设施来计算位置。 当必要数量的GPS卫星重新看到GPS接收机时，再次使用GPS计算位置。 第四方面涉及使用已经从基站向蜂窝网络中的终端发送的蜂窝信号来计算往返延迟，从而可以进行基站与终端之间的距离计算。 该距离计算代替丢失的GPS卫星信号。