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公开(公告)号：US08014265B2
公开(公告)日：2011-09-06
申请号：US12189483
申请日：2008-08-11
IPC分类号： H04W4/00
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译： 描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。 在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。 发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。 发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。 发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。 发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。 然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。
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公开(公告)号：US08009617B2
公开(公告)日：2011-08-30
申请号：US12189548
申请日：2008-08-11
IPC分类号： H04W4/00
CPC分类号： H04B7/043 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/0053 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
摘要翻译： 描述用于在无线通信系统中发送业务数据和控制信息的技术。 在一种设计中，发射机（例如，节点B或UE）可以基于预编码矩阵来执行波束成形以在M层上发送业务数据，其中M可以是一个或更多个。 发射机还可以基于用于业务数据的相同预编码矩阵来执行波束成形以发送多达M个层的控制信息。 发射机可以在第一物理信道上发送波束形成的业务数据，并且可以在第二物理信道上发送波束形成的控制信息。 发射机可以使用时分复用（TDM）或频分复用（FDM）来复用波束形成的业务数据和波束形成的控制信息。
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63.发明申请RANDOM ACCESS CHANNEL (RACH) OPTIMIZATION FOR A SELF-ORGANIZING NETWORK (SON) 审中-公开自组织网络的随机访问通道（RACH）优化（SON）公开(公告)号：US20100232318A1
公开(公告)日：2010-09-16
申请号：US12720565
申请日：2010-03-09
申请人： Sandip Sarkar
发明人： Sandip Sarkar
CPC分类号： H04W28/18 , H04W24/02 , H04W52/50 , H04W74/0833
摘要： Systems and methodologies are described that facilitate optimizing parameters for random access in a wireless communication environment. A network manager can select centrally optimized parameters for random access that mitigate interference among RACH attempts and/or mitigate uplink interference due to RACH in a SON. Moreover, a base station can select locally optimized parameters for random access that mitigate a number of access attempts, mitigate interference among RACH attempts, and/or mitigate uplink interference due to RACH. The centrally optimized parameters can include PRACH configurations, root sequence parameters, ranges for one or more MAC parameters (e.g., initial transmit power, power ramp step, maximum number of preamble transmissions, contention resolution timer, . . . ), and so forth. Further, the locally optimized parameters can include sequence length, one or more MAC parameters (e.g., initial received target power of the random access preamble, power ramp step, contention resolution timer, maximum number of preamble transmissions, . . . ), etc.
摘要翻译： 描述了有助于在无线通信环境中优化用于随机接入的参数的系统和方法。 网络管理器可以选择用于随机接入的集中优化参数，以减轻RACH尝试之间的干扰和/或减轻由于SON中的RACH引起的上行链路干扰。 此外，基站可以选择用于随机接入的本地优化参数，其减轻接入尝试次数，减轻RACH尝试之间的干扰，和/或减轻由于RACH引起的上行链路干扰。 集中优化的参数可以包括PRACH配置，根序列参数，一个或多个MAC参数的范围（例如，初始发射功率，功率斜坡步长，前导码传输的最大数量，争用解决定时器等）等等。 此外，本地优化的参数可以包括序列长度，一个或多个MAC参数（例如，随机接入前导码的初始接收目标功率，功率斜坡步长，争用解决定时器，前导码传输的最大数目等）等。
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公开(公告)号：US20080167040A1
公开(公告)日：2008-07-10
申请号：US11968642
申请日：2008-01-02
申请人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
发明人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
IPC分类号： H04Q7/20
CPC分类号： H04W72/04 , H04B1/713 , H04B7/2621 , H04L1/1692 , H04L5/0053 , H04W52/146 , H04W52/16 , H04W52/243 , H04W52/247 , H04W52/362 , H04W52/60 , H04W72/08
摘要： Techniques for sending control information in a wireless communication system are described. A control segment may include L≧1 tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of S≧1 control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, S>1, and each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, S=1, and each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.
摘要翻译： 描述用于在无线通信系统中发送控制信息的技术。 控制段可以包括L> = 1瓦片，并且每个瓦片可以包括多个传输单元。 可以将多个控制资源定义并映射到控制段的传输单元。 对于对称映射，可以形成多组S> = 1控制资源，并且每L批连续的S个控制资源组可以被映射到L个瓦片中相同位置处的S个传输单元。 对于局部映射，S> 1，并且每组S个控制资源可以被映射到一个瓦片中的S个相邻传输单元的簇。 对于分布式映射，S = 1，并且每个控制资源可以映射到一个瓦片中的一个传输单元。 对于分集，每个控制资源可以映射到至少一个瓦片中的多个（例如，三个）传输单元。
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65.发明申请METHOD AND APPARATUS FOR BROADCAST MULTICAST SERVICE IN AN ULTRA MOBILE BROADBAND NETWORK 审中-公开超大规模移动宽带网络中广播多播服务的方法与装置公开(公告)号：US20080025241A1
公开(公告)日：2008-01-31
申请号：US11829750
申请日：2007-07-27
申请人： Naga Bhushan , Parag Agashe , Sandip Sarkar , Tamer Kadous
发明人： Naga Bhushan , Parag Agashe , Sandip Sarkar , Tamer Kadous
IPC分类号： H04H1/00
CPC分类号： H04L27/3488 , H04L12/1886 , H04L12/189 , H04L27/2602 , H04N21/6131 , H04N21/631 , H04N21/6405 , H04W72/005
摘要： A method and apparatus for broadcast multicast service in an ultra mobile broadband network is provided. An apparatus is provided which is operable in a wireless communication system to provide a means for mapping broadcast flows to a broadcast multicast logical channel and transmitting the broadcast multicast logic channel on an aggregation of broadcast physical channels, where each of the aggregation of the broadcast physical channels is uniquely characterized. Radio configurations to support the ultra mobile broadband network are also provided.
摘要翻译： 提供了一种在超移动宽带网络中广播组播服务的方法和装置。 提供了一种可在无线通信系统中操作以提供用于将广播流映射到广播多播逻辑信道的装置并且在广播物理信道的聚合上发送广播多播逻辑信道的装置，其中广播物理 渠道是独特的特征。 还提供了支持超移动宽带网络的无线电配置。
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公开(公告)号：US20050008154A1
公开(公告)日：2005-01-13
申请号：US10901544
申请日：2004-07-28
申请人： Sandip Sarkar
发明人： Sandip Sarkar
CPC分类号： G06F7/588 , H04L9/0662 , H04L2209/12 , H04L2209/805
摘要： In wireless communications, transmission devices require continuous supplies of random data for encryption processes. The invention provides a method for generating a continuous pool of truly random data with hardware that is already available in conventional CDMA phones.
摘要翻译： 在无线通信中，传输设备需要连续提供用于加密过程的随机数据。 本发明提供一种用常规CDMA手机已经可用的用硬件产生真实随机数据的连续池的方法。
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公开(公告)号：US09369990B2
公开(公告)日：2016-06-14
申请号：US12537698
申请日：2009-08-07
CPC分类号： H04W72/00
摘要： A method, an apparatus, and a computer program product operable in a wireless communication system are provided in which a pairing is determined between one or more uplink carriers and one or more downlink carriers. The one or more uplink carriers and the one or more downlink carriers include at least three carriers. On which carrier to exchange control information on one or more of the carriers is based on the pairing or an anchor carrier designation.
摘要翻译： 提供了一种在无线通信系统中可操作的方法，装置和计算机程序产品，其中在一个或多个上行链路载波和一个或多个下行链路载波之间确定配对。 一个或多个上行链路载波和一个或多个下行链路载波包括至少三个载波。 在一个或多个载波上交换控制信息的载波基于配对或锚定载波指定。
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公开(公告)号：US08693444B2
公开(公告)日：2014-04-08
申请号：US13465943
申请日：2012-05-07
申请人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
发明人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
CPC分类号： H04W72/04 , H04B1/713 , H04B7/2621 , H04L1/1692 , H04L5/0053 , H04W52/146 , H04W52/16 , H04W52/243 , H04W52/247 , H04W52/362 , H04W52/60 , H04W72/08
摘要： Techniques for sending control information in a wireless communication system are described. A control segment may include L≧1 tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of S≧1 control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, S>1, and each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, S=1, and each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.
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69.发明授权公开(公告)号：US08600413B2
公开(公告)日：2013-12-03
申请号：US12259809
申请日：2008-10-28
IPC分类号： H04W68/00
CPC分类号： H04W68/02 , H04W68/025
摘要： Systems and methods for utilizing paging group IDs and paging indicators are disclosed for PDCCH and PDSCH transmissions to mobile terminals in a mobile communication system. By use of the paging group IDs and paging indicators, various groups of mobile terminals, including subsets of those groups can be paged with reduced decoding requirements. Nesting of the grouping is exploited and packing of the PDCCH frame to accomplish efficient use is described.
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公开(公告)号：US08412257B2
公开(公告)日：2013-04-02
申请号：US13162420
申请日：2011-06-16
IPC分类号： H04B7/00
CPC分类号： H04L1/0036 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0026 , H04L1/0034 , H04L1/16 , H04L5/0007 , H04L5/0016 , H04L5/0023 , H04L5/0028 , H04L5/0037 , H04L5/006
摘要： Techniques for selecting transmit formats in a manner to account for the degrees of resource reuse for multiple data streams sent simultaneously from multiple antennas are described. The degree of resource reuse for each data stream indicates the amount of reuse of resources (e.g., orthogonal codes or subcarriers) observed by that stream. Interference estimates for the multiple data streams are derived based on an initial resource assignment. The degrees of resource reuse are determined based on the interference estimates and are used to derive at least one correction factor. At least one transmit format is then selected for the data streams using the at least one correction factor. Each data stream is associated with a transmit format that indicates the amount of resources to use for the data stream and other parameters. Resources are assigned to each data stream in accordance with its transmit format.
摘要翻译： 描述了以考虑从多个天线同时发送的多个数据流的资源重用程度来选择发送格式的技术。 每个数据流的资源重用程度指示由该流观察到的资源（例如，正交码或子载波）的重用量。 基于初始资源分配导出多个数据流的干扰估计。 基于干扰估计来确定资源重用度，并且用于导出至少一个校正因子。 然后使用至少一个校正因子为数据流选择至少一个发送格式。 每个数据流与指示用于数据流的资源量和其他参数的发送格式相关联。 根据其发送格式将资源分配给每个数据流。
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