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91. 发明申请

US20070268978A1 Carrier offset estimator 审中-公开
标题翻译：载波偏移估计器
公开(公告)号：US20070268978A1
公开(公告)日：2007-11-22
申请号：US11888168
申请日：2007-07-31
申请人： Leonid Kazakevich , Fatih Ozluturk , Alexander Reznik
发明人： Leonid Kazakevich , Fatih Ozluturk , Alexander Reznik
IPC分类号： H04L5/12
CPC分类号： H04L27/3836 , H04L27/2332 , H04L27/3854 , H04L2027/0065 , H04L2027/0085
摘要： A system for estimating carrier offset includes includes a transmitter configured to transmit a quadrature modulated signal, and a receiver. The receiver includes an input configured to receive the quadrature modulated signal, a local oscillator configured to generate cosine and sine waves at a carrier frequency of the quadrature modulated signal, at least one cosine mixer configured to generate a carrier frequency demodulated output, at least one sine mixer configured to generate a carrier frequency demodulated output, a plurality of lowpass filters configured to filter the demodulated output of the cosine and sine mixers to produce filtered cosine and sine signal components, and a carrier offset detection processor to estimate a carrier offset between the carrier frequency and a local oscillator frequency based on the filtered output of the lowpass filters.
摘要翻译：用于估计载波偏移的系统包括：发射机，被配置为发送正交调制信号;以及接收机。所述接收机包括被配置为接收所述正交调制信号的输入端，被配置为在所述正交调制信号的载波频率上产生余弦和正弦波的本地振荡器，配置成产生载波频率解调输出的至少一个余弦混频器，至少一个配置为产生载波频率解调输出的多个低通滤波器，多个低通滤波器，被配置为对余弦和正弦混频器的解调输出进行滤波，以产生滤波余弦和正弦信号分量;以及载波偏移检测处理器，用于估计载波偏移基于低通滤波器的滤波输出的载波频率和本地振荡器频率。

92. 发明申请

US20070263579A1 RANDOM ACCESS CHANNEL FOR OFDM-MIMO SYSTEM 有权
标题翻译： OFDM-MIMO系统的随机接入信道
公开(公告)号：US20070263579A1
公开(公告)日：2007-11-15
申请号：US11746363
申请日：2007-05-09
申请人： Fatih Ozluturk
发明人： Fatih Ozluturk
IPC分类号： H04Q7/24
CPC分类号： H04W74/0833 , H04B7/0413 , H04J13/0059 , H04L27/2608 , H04L27/2637 , H04W74/004 , H04W74/0866
摘要： In orthogonal frequency division multiplexing (OFDM) multiple-input multiple-output (MIMO) systems, a wireless transmit/receive unit (WTRU) selects a random access channel (RACH) and a phase for a constant amplitude zero auto correlation (CAZAC) sequence for RACH transmission. The WTRU then transmits a RACH transmission to a Node B via the selected RACH. Once the RACH transmission is detected, the Node B sends an acknowledgement (ACK) to the WTRU over an ACK channel. The Node B may transmit the ACK on a shared channel. The WTRU may ramp up transmit power while the RACH transmission is transmitted, or steps up transmit power of a subsequent RACH transmission. The RACH transmission and data transmission may be either time multiplexed or frequency multiplexed. A plurality of RACHs may be defined and one of the defined RACHs may be selected randomly or based on predetermined criteria.
摘要翻译：在正交频分复用（OFDM）多输入多输出（MIMO）系统中，无线发射/接收单元（WTRU）选择随机接入信道（RACH）和恒定幅度零自相关（CAZAC）序列的相位用于RACH传输。然后，WTRU经由所选择的RACH向节点B发送RACH传输。一旦检测到RACH传输，节点B通过ACK信道向WTRU发送确认（ACK）。节点B可以在共享信道上发送ACK。 WTRU可以在发送RACH传输时提高发射功率，或者增加随后的RACH传输的发射功率。 RACH传输和数据传输可以是时分复用的或频率复用的。可以定义多个RACH，并且可以随机地或基于预定标准来选择所定义的RACH中的一个。

93. 发明申请

US20070140106A1 SYNCHRONIZATION CHANNEL FOR OFDMA BASED EVOLVED UTRA DOWNLINK 审中-公开
标题翻译：用于基于OFDMA的演进型UTRA下行链路的同步信道
公开(公告)号：US20070140106A1
公开(公告)日：2007-06-21
申请号：US11611510
申请日：2006-12-15
申请人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan , Fatih Ozluturk
发明人： Yingming Tsai , Guodong Zhang , Jung-Lin Pan , Fatih Ozluturk
IPC分类号： H04J11/00 , H04J3/06
CPC分类号： H04L27/2613 , H04B7/2681 , H04J11/0069 , H04J11/0073 , H04L5/0007 , H04L5/005 , H04L5/0053 , H04L5/0064 , H04L27/2636 , H04L27/2655 , H04L27/2656 , H04L27/2657 , H04L27/2662 , H04W48/16 , H04W56/00
摘要： A method for performing cell search in an orthogonal frequency division multiple access (OFDMA) based cellular communication network in which a primary synchronization channel (P-SCH), and optionally a secondary synchronization channel (S-SCH), carries cell search information. A downlink signal is received containing P-SCH symbols. The P-SCH symbols are processed to obtain an initial detection of frame timing, orthogonal frequency division multiplexing (OFDM) symbol timing, a cell identifier (ID), a frequency offset, and a cell transmission bandwidth. Optionally, an OFDM symbol timing self-check and error correction is then performed.
摘要翻译：一种在基于正交频分多址（OFDMA）的蜂窝通信网络中执行小区搜索的方法，其中主同步信道（P-SCH）和可选地的辅同步信道（S-SCH）携带小区搜索信息。接收包含P-SCH符号的下行链路信号。处理P-SCH符号以获得帧定时，正交频分复用（OFDM）符号定时，小区标识符（ID），频率偏移和小区传输带宽的初始检测。可选地，执行OFDM符号定时自检和纠错。

94. 发明申请

US20060280136A1 User equipment for synchronizing to a TDD base station 有权
标题翻译：用于与TDD基站同步的用户设备
公开(公告)号：US20060280136A1
公开(公告)日：2006-12-14
申请号：US11505575
申请日：2006-08-17
申请人： Nadir Sezgin , Fatih Ozluturk
发明人： Nadir Sezgin , Fatih Ozluturk
IPC分类号： H04L5/14 , H04B7/216
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70752 , H04B1/7093 , H04B2201/70701 , H04B2201/70702 , H04L27/2053 , H04W56/00 , H04W74/04 , H04W88/08
摘要： A time division duplex (TDD) user equipment (UE) is configured to synchronize to a TDD base station. The UE includes a receiver configured to receive a primary synchronization code along with a plurality of secondary synchronization codes from a TDD base station. The TDD base station is associated with having a code group out of N code groups. The plurality of secondary synchronization codes number less than (log2N)+1 and are quadrature phase shift keying modulated. The UE also includes a corresponding matched filter to each of the received secondary synchronization codes. The UE is configured to identify the code group of the TDD base station by the received plurality of secondary synchronization.
摘要翻译：时分双工（TDD）用户设备（UE）被配置为与TDD基站同步。 UE包括被配置为从TDD基站接收主同步码以及多个次同步码的接收机。 TDD基站与N个码组中的代码组相关联。多个次同步码小于（log 2 N）+1，并且是正交相移键控调制。 UE还包括对每个接收到的辅同步码的相应的匹配滤波器。 UE被配置为通过所接收的多个次同步来识别TDD基站的码组。

95. 发明申请

US20060035605A1 Method and apparatus for reducing antenna correlation 失效
公开(公告)号：US20060035605A1
公开(公告)日：2006-02-16
申请号：US11202570
申请日：2005-08-12
申请人： Fatih Ozluturk , Philip Pietraski
发明人： Fatih Ozluturk , Philip Pietraski
IPC分类号： H04B1/02 , H04B1/04 , H04B7/02
CPC分类号： H04B7/10 , H01Q21/29 , H01Q25/00 , H04B7/04 , H04B7/0408 , H04B7/0617 , H04B7/0626 , H04B7/066 , H04B7/0691 , H04B7/0697
摘要： The present invention is related to a method and apparatus for reducing antenna correlation between multiple antennas. A transmitter generates at least two beams with a plurality of antennas. The generated beams are spatially separated to point away each other. Therefore, the transmitted signals travel through different channel conditions and arrive at a receiver mutually uncorrelated. The beams may be generated by antennas having different antenna pattern, or by an array antenna. The beams may be polarized differently. The schemes may be implemented on a subcarrier basis in an orthogonal frequency division multiplexing (OFDM) system. Trellis coded mapping may be utilized for adjacent symbols to be mapped to antennas with low correlation.

96. 发明授权

US06985467B2 Rapid acquisition spreading codes for spread-spectrum communications 有权
标题翻译：用于扩频通信的快速采集扩展码
公开(公告)号：US06985467B2
公开(公告)日：2006-01-10
申请号：US09757768
申请日：2001-01-10
申请人： Gary Lomp , John Kowalski , Fatih Ozluturk , Avi Silverberg , Robert Regis , Michael Luddy , Alexander Marra , Alexander Jacques
发明人： Gary Lomp , John Kowalski , Fatih Ozluturk , Avi Silverberg , Robert Regis , Michael Luddy , Alexander Marra , Alexander Jacques
IPC分类号： H04B7/216
CPC分类号： H04B7/2637 , G06F13/374 , H03H17/0226 , H03H17/06 , H04B1/707 , H04B1/7075 , H04B1/70753 , H04B1/70754 , H04B1/70755 , H04B1/70758 , H04B1/7077 , H04B1/708 , H04B1/7085 , H04B1/709 , H04B1/7093 , H04B1/711 , H04B1/7115 , H04B1/712 , H04B7/2628 , H04B7/264 , H04B2201/70701 , H04B2201/70702 , H04B2201/70703 , H04B2201/70707 , H04B2201/7071 , H04J13/00 , H04J13/004 , H04J13/0048 , H04J13/0077 , H04J13/10 , H04J13/107 , H04J13/12 , H04J13/16 , H04J2013/0037 , H04L1/0001 , H04L1/004 , H04L1/0042 , H04L1/0047 , H04L1/0054 , H04L1/0059 , H04L5/1446 , H04L25/0212 , H04L27/206 , H04L27/2332 , H04L2027/003 , H04L2027/0053 , H04N1/00912 , H04N1/3333 , H04N2201/3335 , H04W52/04 , H04W52/08 , H04W52/143 , H04W52/146 , H04W52/24 , H04W52/241 , H04W52/245 , H04W52/247 , H04W52/26 , H04W52/262 , H04W52/322 , H04W52/325 , H04W52/343 , H04W52/346 , H04W52/36 , H04W52/367 , H04W52/44 , H04W52/50 , H04W52/52 , H04W52/54 , H04W52/60 , Y02D10/14
摘要： A method and system for rapidly acquiring a spreading code, used in a code division multiple access (CDMA) system. A first long code and a second long code, with each long code having a length of N chips, are generated. The first long code is different from the second long code. The first long code and the second long code are transmitted at a first phase angle and at a second phase angle, respectively, on a carrier signal, over a communications channel using radio waves. The first long code and the second long code may be transmitted at an in-phase (I) angle and at a quadrature-phase (Q) angle, respectively, on the carrier signal. From the communications channel, an I-phase acquisition circuit and a Q-phase acquisition circuit may acquire, in parallel, the first long code and the second long code from the I-phase angle and the Q-phase angle, respectively, of the carrier signal by searching, in parallel, N/2 chips, the first long code and the second long code.
摘要翻译：一种用于在码分多址（CDMA）系统中使用的用于快速获取扩展码的方法和系统。生成第一长码和第二长码，其中每个长码具有N个码片的长度。第一个长代码与第二个长代码不同。通过使用无线电波的通信信道，第一长码和第二长码分别以载波信号的第一相位角和第二相位角发送。第一长码和第二长码可以分别在载波信号上以同相（I）角度和正交相位（Q）角发射。从通信信道，I相采集电路和Q相采集电路可以分别从I相位角和Q相位角并行获取第一长码和第二长码并行地搜索N / 2个码片，第一个长码和第二个长码。

97. 发明申请

US20050277443A1 Method and system for utilizing smart antennas in establishing a backhaul network 有权
标题翻译：利用智能天线建立回程网络的方法和系统
公开(公告)号：US20050277443A1
公开(公告)日：2005-12-15
申请号：US11015557
申请日：2004-12-17
申请人： Fatih Ozluturk
发明人： Fatih Ozluturk
IPC分类号： H01Q21/00 , H04B1/00 , H04B7/005 , H04B7/06 , H04L12/28 , H04L12/56 , H04W16/28 , H04W40/06 , H04W40/24 , H04W84/18 , H04Q7/20
CPC分类号： H04W72/0486 , H04B7/026 , H04B7/0408 , H04B7/0695 , H04L45/42 , H04W16/28 , H04W40/06 , H04W40/248 , H04W52/322 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/08 , H04W92/14 , Y02D70/00 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/22 , Y02D70/322 , Y02D70/442 , Y02D70/444
摘要： A method and system for utilizing smart antenna in transmission of messages between nodes are disclosed. A wireless communication system includes a plurality of nodes, and each node is capable of being connected to each other node. At least a portion of the nodes are provided with a smart antenna configured to generate a plurality of directional beams. Each node maintains a list of other nodes and beam configuration information to be used in transmission of messages to other nodes. When a source node is required to transmit to a target node, the source node retrieves the beam configuration information and transmits with a directional beam directed to the target node.
摘要翻译：公开了一种在节点之间传输消息中利用智能天线的方法和系统。无线通信系统包括多个节点，并且每个节点能够连接到彼此节点。节点的至少一部分设置有被配置为生成多个定向波束的智能天线。每个节点维护用于向其他节点发送消息的其他节点和波束配置信息的列表。当源节点需要传送到目标节点时，源节点检索波束配置信息，并用指向目标节点的定向波发射。

98. 发明申请

US20050254557A1 Receiver and base station for producing phase-corrected channel signals 有权
标题翻译：接收机和基站，用于产生相位校正的信道信号
公开(公告)号：US20050254557A1
公开(公告)日：2005-11-17
申请号：US11189370
申请日：2005-07-26
申请人： Fatih Ozluturk , David Mesecher , Alexander Jacques
发明人： Fatih Ozluturk , David Mesecher , Alexander Jacques
IPC分类号： H04L27/02 , H04B1/707 , H04B1/7075 , H04B1/7085 , H04B1/7093 , H04B1/7115
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： A receiver and base station for producing phase-corrected channel signals. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
摘要翻译：用于产生相位校正的信道信号的接收机和基站。自适应匹配滤波器通过使用加权信号产生滤波信号。瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器接收所选信道的解扩频道信号并产生校正信号。锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

99. 发明申请

US20050254454A1 Independent mode selection for forward and reverse links 失效
标题翻译：前向和反向链路的独立模式选择
公开(公告)号：US20050254454A1
公开(公告)日：2005-11-17
申请号：US11000286
申请日：2004-11-30
申请人： Fatih Ozluturk
发明人： Fatih Ozluturk
IPC分类号： H04L12/28 , H04L12/56 , H04W76/02 , H04W88/06 , H04Q7/00
CPC分类号： H04W88/06 , H04W76/10
摘要： Implementation of communication in a multi-protocol wireless network communication network is performed according to protocols independently selected for forward and reverse communication links. A communication request is made according to predetermined criteria, and a communication link is established responsive to the request. A determination is made of a preferred communication protocol in at least one direction (forward or reverse link). The communication link is established for that direction in accordance with the preferred communication protocol while controlling communication in the other direction independently.
摘要翻译：根据为前向和反向通信链路独立选择的协议，执行多协议无线网络通信网络中的通信的实现。根据预定标准进行通信请求，响应于该请求建立通信链路。在至少一个方向（正向或反向链路）上确定优选的通信协议。根据优选的通信协议为该方向建立通信链路，同时独立地控制另一方向上的通信。

100. 发明申请

US20050190866A1 Digital automatic gain control 失效
标题翻译：数字自动增益控制
公开(公告)号：US20050190866A1
公开(公告)日：2005-09-01
申请号：US11113603
申请日：2005-04-25
申请人： Leonid Kazakevich , Fatih Ozluturk
发明人： Leonid Kazakevich , Fatih Ozluturk
IPC分类号： H03G3/30 , H03G7/00 , H04B17/00
CPC分类号： H03G7/001 , H03G3/3052
摘要： An automatic gain control system prevents input overload by precisely controlling the input level of a received, digitally modulated signal without variable gain amplification. Limiting amplification in conjunction with a logarithmic detection splits an input signal path in two, providing separate phase and amplitude information for downstream digital signal processing, where the separate phase and amplitude information is processed without variable gain artifacts. The separated phase information may further be divided into I and Q signals.
摘要翻译：自动增益控制系统通过精确地控制接收到的数字调制信号的输入电平，从而防止输入过载，而无需增益放大。限制放大结合对数检测将输入信号路径分成两部分，为下游数字信号处理提供单独的相位和幅度信息，其中单独的相位和幅度信息被处理而没有可变增益伪像。分离的相位信息还可以被分成I和Q信号。

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