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101. 发明授权

US08780790B2 TDD operation in wireless communication systems 失效
标题翻译： TDD操作在无线通信系统中
公开(公告)号：US08780790B2
公开(公告)日：2014-07-15
申请号：US12349251
申请日：2009-01-06
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04W56/00 , H04L5/14 , H04W72/04
CPC分类号： H04W56/0035 , H04L5/14 , H04W72/04
摘要： A method provides a wireless frame protocol. The method includes communicating a transmission interval that facilitates switching between a downlink portion and an uplink portion of a wireless communications channel. The method employs one or more guard periods during the transmission interval to mitigate overlap of transmitting frequencies between the downlink and uplink portions of the wireless communications channel.
摘要翻译：一种方法提供无线帧协议。该方法包括传送有助于在无线通信信道的下行链路部分和上行链路部分之间切换的传输间隔。该方法在传输间隔期间采用一个或多个保护周期以减轻无线通信信道的下行链路和上行链路部分之间的发射频率的重叠。

102. 发明授权

US08699452B2 Congestion control in a wireless data network 有权
标题翻译：无线数据网络中的拥塞控制
公开(公告)号：US08699452B2
公开(公告)日：2014-04-15
申请号：US12641036
申请日：2009-12-17
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04W4/00
CPC分类号： H04W72/1226 , H04W24/10 , H04W28/22 , H04W72/042 , H04W72/0426 , H04W72/0486 , H04W74/00
摘要： Techniques for congestion control are disclosed. In an embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a multi-valued busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a multi-valued busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In an embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects provide efficient congestion control, avoiding excessive interference and increasing capacity.
摘要翻译：公开了拥塞控制技术。在一个实施例中，基站使用零个或多个单独授权和零个或更多个公共授权的组合来分配共享资源，并且响应于超过预定电平的负载条件而生成多值繁忙信号。在另一个实施例中，响应于多值忙信号，发送移动台的子集降低其传输速率。该子集可以包括自主传输，通常授权的传输，单独授权的传输或其任何组合。在各种实施例中，速率调整可以是概率的或确定的。在一个实施例中，部署速率表，并且移动台响应于忙信号，分别将传输速率从表中的一个速率降低或增加到表中的较低或更高速率。各种其他方面提供有效的拥塞控制，避免过度干扰和增加容量。

103. 发明申请

US20120263134A1 METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS 失效
标题翻译：用于移动通信中的PDCCH盲解码的方法和系统
公开(公告)号：US20120263134A1
公开(公告)日：2012-10-18
申请号：US13529900
申请日：2012-06-21
申请人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Juan Montojo , Sandip Sarkar
IPC分类号： H04W72/04
CPC分类号： H04L1/0038 , H04W72/042
摘要： Various methods and systems for efficiently performing the blind decoding of downlink signals is described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible lnposelstartCCElnposelend/REs are also described using a first set to secondary and tertiary sets. Various other ordering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.
摘要翻译：描述了用于有效地执行下行链路信号的盲解码的各种方法和系统。对可能的CCE组合的几种形式进行了调查和调查。基于PDCCH大小估计/信息，可以得出最有可能（有限集合）的CCE级联。还设计了基于树的级联，使用最大的CCE排序来将较小的CCE大小对准到相似的边界。通过这样的排序，所有可能的CCE排序和大小的搜索空间可以减少到一个有效的树。也可以使用第一组到第二组和第三组来描述可能的lnposelstartCCElnposelend / RE之间的映射。还详细描述了能够有效执行PDCCH信道的盲解码的各种其他排序和排序方案。

104. 发明申请

US20120120861A1 BROADCAST AND MULTICAST SERVICES IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统中的广播和多播服务
公开(公告)号：US20120120861A1
公开(公告)日：2012-05-17
申请号：US13024057
申请日：2011-02-09
申请人： Sandip Sarkar , Aamod Khandekar , Tamer Kadous
发明人： Sandip Sarkar , Aamod Khandekar , Tamer Kadous
IPC分类号： H04W4/06
CPC分类号： H04W72/005
摘要： Methods and apparatus for assigning, identifying and controlling broadcast transmissions are disclosed. A broadcast flow is assigned to a broadcast logical channel of the physical resources of a wireless communication channel. A broadcast channel control message indicative of parameters of the broadcast logical channel is generated. Upon receipt, the broadcast channel control message is processed and used to accordingly process the received broadcast transmission.
摘要翻译：公开了用于分配，识别和控制广播传输的方法和装置。广播流被分配给无线通信信道的物理资源的广播逻辑信道。生成表示广播逻辑信道的参数的广播信道控制消息。在接收到广播频道控制消息时，处理并用于相应地处理所接收的广播传输。

105. 发明申请

US20100260081A1 BANDWIDTH SEGMENTATION AND MULTI-SEGMENT OPERATION AND CONTROL 有权
标题翻译：带宽分段和多段操作与控制
公开(公告)号：US20100260081A1
公开(公告)日：2010-10-14
申请号：US12636589
申请日：2009-12-11
申请人： Jelena M. Damnjanovic , Juan Montojo , Sandip Sarkar
发明人： Jelena M. Damnjanovic , Juan Montojo , Sandip Sarkar
IPC分类号： H04B7/00 , H04J3/00 , H04J1/00
CPC分类号： H04L5/0053 , H04L5/0044
摘要： Bandwidth segmentation according to a one carrier approach conveyed in a main information block (MIB) supports a plurality of contiguous frequency segments with one frequency segment seen by legacy terminals and the whole bandwidth seen by advanced terminals. Control regions either within data regions of a legacy frequency band segment or with one or two contiguous advanced frequency band segments separated by the legacy frequency band segment are communicated to advanced terminals in system information blocks (SIBs) or conveyed to an advanced UE by dedicated signaling.
摘要翻译：根据在主信息块（MIB）中传送的一载波方法的带宽分段支持多个连续的频段，其中由传统终端看到的一个频段和高级终端看到的整个带宽。在遗留频带段的数据区域内或由传统频段段分隔的一个或两个连续的高级频带段之间的控制区域被传送到系统信息块（SIB）中的高级终端，或通过专用信令传送到高级UE 。

106. 发明申请

US20100135156A1 CONGESTION CONTROL IN A WIRELESS DATA NETWORK 有权
标题翻译：无线数据网络中的约束控制
公开(公告)号：US20100135156A1
公开(公告)日：2010-06-03
申请号：US12641036
申请日：2009-12-17
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04W28/02
CPC分类号： H04W72/1226 , H04W24/10 , H04W28/22 , H04W72/042 , H04W72/0426 , H04W72/0486 , H04W74/00
摘要： Techniques for congestion control are disclosed. In an embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a multi-valued busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a multi-valued busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In an embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects provide efficient congestion control, avoiding excessive interference and increasing capacity.
摘要翻译：公开了拥塞控制技术。在一个实施例中，基站使用零个或多个单独授权和零个或更多个公共授权的组合来分配共享资源，并且响应于超过预定电平的负载条件而生成多值繁忙信号。在另一个实施例中，响应于多值忙信号，发送移动台的子集降低其传输速率。该子集可以包括自主传输，通常授权的传输，单独授权的传输或其任何组合。在各种实施例中，速率调整可以是概率的或确定的。在一个实施例中，部署速率表，并且移动台响应于忙信号，分别将传输速率从表中的一个速率降低或增加到表中的较低或更高速率。各种其他方面提供有效的拥塞控制，避免过度干扰和增加容量。

107. 发明授权

US07660282B2 Congestion control in a wireless data network 有权
标题翻译：无线数据网络中的拥塞控制
公开(公告)号：US07660282B2
公开(公告)日：2010-02-09
申请号：US10646242
申请日：2003-08-22
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04Q7/00
CPC分类号： H04W72/1226 , H04W24/10 , H04W28/22 , H04W72/042 , H04W72/0426 , H04W72/0486 , H04W74/00
摘要： Techniques for congestion control are disclosed. In one embodiment, a base station allocates a shared resource using a combination of zero or more individual grants and zero or more common grants, and generates a busy signal in response to loading conditions that exceed a pre-determined level. In another embodiment, a subset of transmitting mobile stations reduce their transmission rate in response to a busy signal. The subset may include autonomous transmission, commonly granted transmission, individually granted transmission, or any combination thereof. In various embodiments, rate adjustment may be probabilistic or deterministic. In one embodiment, a rate table is deployed, and a mobile station decreases or increases the transmission rate from one rate in the table to a lower or higher rate in the table, respectively, in response to the busy signal. Various other aspects are also presented. These aspects have the benefit of providing efficient congestion control, avoiding excessive interference and increasing capacity.
摘要翻译：公开了拥塞控制技术。在一个实施例中，基站使用零个或多个单独授权和零个或更多个公共授权的组合来分配共享资源，并且响应于超过预定电平的负载条件而生成忙信号。在另一个实施例中，响应于忙信号，发送移动台的子集降低其传输速率。该子集可以包括自主传输，通常授权的传输，单独授权的传输或其任何组合。在各种实施例中，速率调整可以是概率的或确定的。在一个实施例中，部署速率表，并且移动台响应于忙信号，分别将传输速率从表中的一个速率降低或增加到表中的较低或较高速率。还提出了各种其他方面。这些方面具有提供有效的拥塞控制，避免过度干扰和增加容量的好处。

108. 发明申请

US20090180435A1 TDD OPERATION IN WIRELESS COMMUNICATION SYSTEMS 失效
标题翻译：无线通信系统中的TDD操作
公开(公告)号：US20090180435A1
公开(公告)日：2009-07-16
申请号：US12349251
申请日：2009-01-06
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04W72/00
CPC分类号： H04W56/0035 , H04L5/14 , H04W72/04
摘要： A method provides a wireless frame protocol. The method includes communicating a transmission interval that facilitates switching between a downlink portion and an uplink portion of a wireless communications channel. The method employs one or more guard periods during the transmission interval to mitigate overlap of transmitting frequencies between the downlink and uplink portions of the wireless communications channel.
摘要翻译：一种方法提供无线帧协议。该方法包括传送有助于在无线通信信道的下行链路部分和上行链路部分之间切换的传输间隔。该方法在传输间隔期间采用一个或多个保护周期以减轻无线通信信道的下行链路和上行链路部分之间的发射频率的重叠。

109. 发明申请

US20090129259A1 CODING AND MULTIPLEXING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中控制信息的编码和多路复用
公开(公告)号：US20090129259A1
公开(公告)日：2009-05-21
申请号：US12190461
申请日：2008-08-12
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Juan Montojo , Sandip Sarkar
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Juan Montojo , Sandip Sarkar
IPC分类号： H04J11/00 , H04J3/00
CPC分类号： H04J11/00 , H04B7/0417 , H04L1/0026 , H04L1/0028 , H04L1/0057 , H04L1/0072 , H04L1/1607 , H04L1/1671 , H04L1/1812 , H04L1/1822 , H04L5/0007 , H04L5/0053 , H04L5/0064 , H04L5/0091
摘要： Techniques for sending control information in a wireless communication system are described. In an aspect, a UE spreads control information across frequency with a DFT and across time with an orthogonal sequence to obtain output data for the control information. In one design, the UE receives codewords for N HARQ processes in N downlink subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, generates output data for the ACK information, and sends the output data in one of M uplink subframes. In another aspect, first control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in time domain and spreading in frequency domain.
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。在一方面，UE以DFT和跨越时间的正交序列跨频率扩展控制信息，以获得控制信息的输出数据。在一种设计中，UE在N个下行链路子帧中接收N个HARQ进程的码字，确定每个HARQ进程的ACK值，对N个HARQ进程的N个ACK值进行编码以获得ACK信息，生成ACK信息的输出数据，并发送 M个上行链路子帧之一的输出数据。在另一方面，基于利用时域和频域中的码分复用的第一编码和复用方案处理第一控制信息。基于利用时域中的码分复用的第二编码和复用方案来处理第二控制信息，并在频域上扩展。

110. 发明申请

US20090093222A1 CALIBRATION AND BEAMFORMING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的校准和射束
公开(公告)号：US20090093222A1
公开(公告)日：2009-04-09
申请号：US12244629
申请日：2008-10-02
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04B1/02 , H04B17/00
CPC分类号： H04B7/0617 , H04B7/0628 , H04B17/21
摘要： Techniques for performing calibration and beamforming in a wireless communication system are described. In an aspect, a Node B may periodically perform calibration in each calibration interval with a set of UEs to obtain a calibration vector for the Node B. The Node B may apply the calibration vector to account for mismatches in the responses of the transmit and receive chains at the Node B. In another aspect, the Node B may perform beamforming to a UE by taking into account gain imbalance for multiple antennas at the UE. The Node B may determine a precoding matrix for beamforming by taking into account gain imbalance due to (i) different automatic gain control (AGC) gains for receive chains at the UE, (ii) different power amplifier (PA) gains for transmit chains at the UE, and/or (iii) different antenna gains for multiple antennas at the UE.
摘要翻译：描述了在无线通信系统中执行校准和波束成形的技术。在一方面，节点B可以在每个校准间隔内周期性地执行与一组UE的校准，以获得用于节点B的校准向量。节点B可以应用校准向量来解决发送和接收的响应中的不匹配在另一方面，节点B可以通过考虑UE处的多个天线的增益不平衡来向UE执行波束赋形。节点B可以通过考虑由于（i）UE处的接收链的不同的自动增益控制（AGC）增益而考虑增益不平衡来确定用于波束成形的预编码矩阵，（ii）用于发射链的不同功率放大器（PA）增益 UE，和/或（iii）UE处的多个天线的不同天线增益。

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