专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明申请

US20110085520A1 METHODS AND APPARATUS FOR INTERFERENCE CANCELLATION 有权
标题翻译：干扰消除的方法和装置
公开(公告)号：US20110085520A1
公开(公告)日：2011-04-14
申请号：US12614436
申请日：2009-11-08
申请人： Yu-Cheun Jou , Rashid A. Attar , Peter J. Black
发明人： Yu-Cheun Jou , Rashid A. Attar , Peter J. Black
IPC分类号： H04B7/216 , H04B15/00
CPC分类号： H04B1/7107 , H04B1/10
摘要： Disclosed are methods and apparatus for interference cancellation in a wireless communication system. In particular, the disclosed methods and apparatus provide for interference cancellation in a wireless device, including extending linear interference cancellation techniques, such as quasi-linear interference cancellation (QLIC), in the wireless device to a first orthogonal set, which may be a first quasi orthogonal function (QOF) set for a cdma2000 system to cancel interference from that set upon another desired QOF set. QLIC may also be extended to cancellation of signals from non-intended base stations as well. Accordingly, the present methods and apparatus afford reduced interference through QLIC by canceling signals due to either undesired QOF sets or non-intended base stations, which in turn results in an increase in forward link capacity.
摘要翻译：公开了一种用于无线通信系统中的干扰消除的方法和装置。具体地，所公开的方法和装置提供无线设备中的干扰消除，包括将无线设备中的线性干扰消除技术（诸如准线性干扰消除（QLIC））扩展到第一正交集合，其可以是第一正交集合为cdma2000系统设置的准正交函数（QOF），以消除来自该组的另一个所需QOF集的干扰。也可以将QLIC扩展到从非预定基站消除信号。因此，本方法和装置通过消除由于不期望的QOF组或非预期基站导致的信号，通过QLIC降低了干扰，这又导致前向链路容量的增加。

92. 发明授权

US07848284B2 Method and apparatus for high rate packet data transmission 有权
标题翻译：用于高速率分组数据传输的方法和装置
公开(公告)号：US07848284B2
公开(公告)日：2010-12-07
申请号：US11540359
申请日：2006-09-29
申请人： Roberto Padovani , Paul E. Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
发明人： Roberto Padovani , Paul E. Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
IPC分类号： H04W4/00
CPC分类号： H04W24/02 , H04B7/264 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/1809 , H04L1/1829 , H04W24/00 , H04W28/04 , H04W28/22 , H04W74/04 , H04W88/02 , H04W88/08
摘要： In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
摘要翻译：在能够进行可变速率传输的数据通信系统中，高速率分组数据传输提高了前向链路的利用率，降低了传输延迟。前向链路上的数据传输被时分复用，基站以每个时隙的前向链路支持的最高数据速率发送到一个移动台。数据速率由在移动台测量的前向链路信号的最大C / I测量来确定。在确定错误地接收到的数据分组时，移动台将NACK消息发送回基站。 NACK消息导致错误地接收到的数据分组的重传。数据分组可以通过使用序列号序列发送，以识别数据分组内的每个数据单元。

93. 发明授权

US07848282B2 Method and apparatus for high rate packet data transmission 有权
公开(公告)号：US07848282B2
公开(公告)日：2010-12-07
申请号：US11540291
申请日：2006-09-29
申请人： Roberto Padovani , Paul E. Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
发明人： Roberto Padovani , Paul E. Bender , Peter J. Black , Matthew S. Grob , Jurg K. Hinderling , Nagabhushana T. Sindhushayana , Charles E. Wheatley, III
IPC分类号： H04W4/00
CPC分类号： H04W24/02 , H04B7/264 , H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L1/1809 , H04L1/1829 , H04W24/00 , H04W28/04 , H04W28/22 , H04W74/04 , H04W88/02 , H04W88/08
摘要： In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.

94. 发明申请

US20100190533A1 METHOD AND SYSTEM FOR WIRELESS COVERAGE REDUNDANCY 有权
标题翻译：无线覆盖冗余方法与系统
公开(公告)号：US20100190533A1
公开(公告)日：2010-07-29
申请号：US12359068
申请日：2009-01-23
申请人： Peter J. Black , Matthew S. Grob
发明人： Peter J. Black , Matthew S. Grob
IPC分类号： H04W52/00
CPC分类号： H04W52/18 , H04W24/04 , H04W88/08 , H04W92/12
摘要： Devices and methods are provided for providing wireless coverage redundancy in case, for example, the backhaul of an access point (AP) base station is not available. In one embodiment, the method involves monitoring the backhaul, and in response to the backhaul being available, facilitating communication between an access terminal (AT) and the macro network via the backhaul. In addition, or in the alternative (e.g., when the backhaul is not available), a communication signal between the AT and a macro base station (or another AP base station) may be boosted.
摘要翻译：提供了用于在例如接入点（AP）基站的回程不可用的情况下提供无线覆盖冗余的设备和方法。在一个实施例中，该方法涉及监视回程，并且响应于回程可用，便于经由回程的接入终端（AT）和宏网络之间的通信。另外或替代方案（例如，当回程不可用时），AT和宏基站（或另一个AP基站）之间的通信信号可以被提升。

95. 发明申请

US20100061496A1 INTERFERENCE CANCELLATION FOR WIRELESS COMMUNICATIONS 有权
标题翻译：干扰消除无线通信
公开(公告)号：US20100061496A1
公开(公告)日：2010-03-11
申请号：US12564633
申请日：2009-09-22
申请人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
发明人： Peter J. Black , Christopher G. Lott , Rashid A. Attar , Yu-Cheun Jou , Jun Ma
IPC分类号： H04B1/10
CPC分类号： H04L25/0224 , H04B1/7107 , H04B2201/70701 , H04L25/0204 , H04L25/0228 , H04W52/36 , H04W52/48
摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.
摘要翻译：使用干扰消除（IC）来提高无线通信系统容量的技术。在早期的解码和IC方面，可以在从基站接收的整个帧之前对从用户发送到基站的帧进行解码。帧的剩余部分然后可以在其接收之前在基站重新构建，并且从接收信号中取消，以减少对从其他用户接收到的帧的干扰。在用于早期解码和IC的功率控制方面，本地基站的功率控制目标电平可以响应成功地早期解码帧来调整，而不影响整个外环功率控制操作。其他方面包括用于利用其他用户信号的IC来提高对给定用户的帧进行解码的概率的后期解码技术，以及使用信道重新估计的业务信道解调技术。

96. 发明申请

US20090305705A1 METHOD AND APPARATUS FOR PERFORMING HANDOFF IN COMMUNICATION SYSTEMS 有权
标题翻译：用于在通信系统中执行切换的方法和装置
公开(公告)号：US20090305705A1
公开(公告)日：2009-12-10
申请号：US12543078
申请日：2009-08-18
申请人： Peter J. Black
发明人： Peter J. Black
IPC分类号： H04W36/38
CPC分类号： H04W36/30 , H04W36/18 , H04W52/40
摘要： A communication system including a closed loop power control system. Prior to allowing a handoff to a new base station, the subscriber station verifies that its reverse link signal is being received by the destination base station with sufficient energy. The determination is made based on the received reverse link power control commands from the base station. Moreover, a handoff may be forced when the base station providing the best forward link signal in not receiving the reverse link signal from the subscriber station with sufficient energy.
摘要翻译：一种包括闭环功率控制系统的通信系统。在允许切换到新的基站之前，用户站验证其反向链路信号正在被目的地基站以足够的能量接收。基于从基站接收到的反向链路功率控制命令进行确定。此外，当提供最佳前向链路信号的基站没有以足够的能量从用户站接收到反向链路信号时，可能迫使切换。

97. 发明授权

US07620005B2 Method and apparatus for code assignment in a spread spectrum wireless communication system 失效
公开(公告)号：US07620005B2
公开(公告)日：2009-11-17
申请号：US10719807
申请日：2003-11-21
申请人： Yongbin Wei , Peter J. Black , Edward G. Tiedemann, Jr.
发明人： Yongbin Wei , Peter J. Black , Edward G. Tiedemann, Jr.
IPC分类号： H04B7/216
CPC分类号： H04B1/7097 , H04B2201/709709 , H04J13/18
摘要： Method and apparatus for code assignments in a spread-spectrum wireless communication system incorporating a Large Area Synchronized-Code Division Multiple Access (LAS-CDMA) protocol. The method determines a set of LS codes based on an interference free window size. An arborescence structure provides the correspondence between the interference free window size and the set of LS codes. Subsets of the LS codes are formed having null cross-correlation within the interference free window. The subsets are assigned to neighboring cells in the system to reduce interference between neighbors. In one embodiment, a controller determines the subsets and makes the assignments to cells within the system.

98. 发明授权

US07609773B2 Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator 有权
标题翻译：确定FFT窗口的位置的方法和铂广告信道估计器的延迟扩展
公开(公告)号：US07609773B2
公开(公告)日：2009-10-27
申请号：US11174108
申请日：2005-06-29
申请人： Naga Bhushan , June Namgoong , Peter J. Black
发明人： Naga Bhushan , June Namgoong , Peter J. Black
IPC分类号： H04L27/28 , H03D1/00
CPC分类号： H04L27/2662 , H04L25/022 , H04L27/2665
摘要： In one embodiment, the invention comprises a channel estimation method, comprising determining a FFT window position, and calculating a delay spread. In another embodiment, the step of determining a FFT window position comprises setting an initial position of the FFT window, computing an energy for each tap, time averaging said energy for each tap, comparing an average energy of each tap with a first threshold multiplied by the average energy of all taps, comparing the average energy of each tap with a second threshold multiplied by a maximum average energy in alias components, updating the set of paths if the average energy of the tap is greater than said second threshold multiplied by the maximum average energy in alias components; and refining the FFT window position.
摘要翻译：在一个实施例中，本发明包括信道估计方法，包括确定FFT窗口位置，并计算延迟扩展。在另一个实施例中，确定FFT窗口位置的步骤包括设置FFT窗口的初始位置，计算每个抽头的能量，对每个抽头的所述能量进行平均的时间，将每个抽头的平均能量与乘以所有抽头的平均能量，将每个抽头的平均能量与第二阈值乘以别名分量中的最大平均能量，如果抽头的平均能量大于所述第二阈值乘以最大值，则更新该组路径别名成分中的平均能量; 并精简FFT窗口位置。

99. 发明申请

US20090082026A1 INTERFERENCE MANAGEMENT UTILIZING POWER CONTROL 有权
标题翻译：干扰管理利用功率控制
公开(公告)号：US20090082026A1
公开(公告)日：2009-03-26
申请号：US12212465
申请日：2008-09-17
申请人： Mehmet Yavuz , Peter J. Black , Sanjiv Nanda
发明人： Mehmet Yavuz , Peter J. Black , Sanjiv Nanda
IPC分类号： H04W52/00
CPC分类号： H04W52/367 , H04B17/318 , H04W52/243 , H04W52/248
摘要： Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques.
摘要翻译：可以通过使用分数重用和其他技术来管理在无线通信期间发生的干扰。在某些方面，分数重用可涉及HARQ交错，时隙的一部分，频谱和扩展码。可以通过使用发射功率分布和/或衰减分布来管理干扰。干扰也可以通过使用与电源管理相关的技术进行管理。

100. 发明授权

US07295857B2 Method and apparatus for performing acquisition in power save mode for wireless communication systems 有权
标题翻译：用于在无线通信系统的节电模式下进行采集的方法和装置
公开(公告)号：US07295857B2
公开(公告)日：2007-11-13
申请号：US10447630
申请日：2003-05-28
申请人： Abhay A. Joshi , James A. Hutchison , Peter J. Black , Simon Turner , Thunyachate Ekvetchavit
发明人： Abhay A. Joshi , James A. Hutchison , Peter J. Black , Simon Turner , Thunyachate Ekvetchavit
IPC分类号： H04M1/00
CPC分类号： H04W48/18 , H04W88/06 , Y02D70/1224
摘要： Techniques to efficiently attempt acquisition of a packet data system (e.g., an IS-856 system). If a terminal has acquired one or more channels in a voice/data system (e.g., an IS-2000 system), then it can attempt acquisition on channels in the packet data system that are co-located with the acquired channels in the voice/data system. Multiple acquisition modes may be used, and on-going acquisition attempts on the co-located channels may be performed using one acquisition mode at a time in order to reduce power consumption. Acquisition attempts may be performed in a “ping-pong” manner to improve the likelihood of acquisition. For a ping-pong search, an acquisition attempt is made on the most recently acquired channel prior to an acquisition attempt on each of the remaining channels. Received signal strength estimates may also be obtained for selected channels and may be used to determine whether or not to attempt acquisition on these channels.
摘要翻译：有效地尝试采集分组数据系统（例如，IS-856系统）的技术。如果终端已经在语音/数据系统（例如，IS-2000系统）中获取了一个或多个信道，则它可以尝试在分组数据系统中与语音/数据系统中所获取的信道共同位置的信道上的采集，数据系统可以使用多个采集模式，并且可以一次使用一个采集模式来执行同位置信道上的持续采集尝试，以便降低功耗。收购尝试可以以“乒乓”方式进行，以提高获取的可能性。对于乒乓搜索，在对每个剩余通道进行采集尝试之前，在最近获取的通道上进行采集尝试。也可以对所选择的信道获得接收的信号强度估计，并且可以用于确定是否尝试在这些信道上进行采集。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式