公开(公告)号：EP0836770A2

公开(公告)日：1998-04-22

申请号：EP96922615.0

申请日：1996-06-27

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： LOMP, Gary ,  OZLUTURK, Fatih ,  KOWALSKI, John

IPC: H03K3 ,  H04B1 ,  H04B7 ,  H04B17 ,  H04J13 ,  H04L1 ,  H04L7 ,  H04L25 ,  H04L27 ,  H04W52 ,  H04J11

CPC classification number: 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

Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.

Abstract translation: 用于扩频通信系统的自动功率控制（APC）系统包括自动正向功率控制（AFPC）系统和自动反向功率控制（ARPC）系统。 在AFPC中，每个用户单元（SU）测量相应的前向信道信息信号的前向信噪比以产生相应的前向信道误差信号，该前向信道误差信号包括信道中不相关噪声的测量值和 各个正向信噪比与预先确定的信噪比之间的误差。 从相应的前向信道误差信号产生的控制信号作为相应的反向信道信息信号的一部分被发送。 基站单元包括AFPC接收器，其接收各自的反向信道信息信号并从中提取前向信道误差信号以调整各个前向扩频信号的功率电平。 在ARPC系统中，每个基站测量各个反向信道信息信号中的每一个的反向信噪比，并且产生各自的反向信道误差信号，该反向信道误差信号包括信道中的不相关噪声的量度以及误差的量度 在相应的反向信噪比与预先确定的信噪比之间。 基站单元发送从各个反向信道误差信号产生的控制信号作为各个前向信道信息信号的一部分。 每个SU包括接收前向信道信息信号并提取相应的反向误差信号以调整相应反向扩频信号的反向发射功率电平的ARPC接收机。

公开(公告)号：EP1568192B1

公开(公告)日：2009-04-15

申请号：EP03783365.4

申请日：2003-11-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OZLUTURK, Fatih ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir ,  DEMIR, Alpaslan ,  NARAYAN, Geetha, Lakshmi ,  KEARNEY, Kenneth

IPC: H03D3/00 ,  H03C3/40 ,  H03G3/00

CPC classification number: H03G3/001 ,  H03D3/008 ,  H03D3/009 ,  H03G3/3068 ,  H03G3/3089 ,  H03G2201/103 ,  H03G2201/202 ,  H03G2201/302 ,  H03G2201/307 ,  H03G2201/508 ,  H04B1/30 ,  H04L2027/0016 ,  H04L2027/0024

Abstract: In order to compensate for performance degradation caused by inferior low-cost analog radio component (105) tolerances of an analog radio (100), a future system architecture (FSA) wireless communication transceiver employs numerous digital signal processing techniques to compensate for deficiencies of such analog components so that modern specifications may be relaxed. Automatic gain control (110) functions are provided in the digital domain, so as to provide enhanced phase and amplitude compensation, as well as many other radio frequency parameters.

公开(公告)号：EP1757074A2

公开(公告)日：2007-02-28

申请号：EP05758371.8

申请日：2005-06-07

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OZLUTURK, Fatih

IPC: H04M1/00 ,  H04B1/00

CPC classification number: H04W52/322 ,  H04B7/026 ,  H04B7/0695 ,  H04L45/42 ,  H04W40/06 ,  H04W88/02 ,  H04W88/04 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/22 ,  Y02D70/322 ,  Y02D70/442 ,  Y02D70/444

Abstract: 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.

Abstract translation: 一种用于在节点之间的消息的传输利用智能天线的方法和系统游离缺失光盘。 一种无线通信系统包括节点的多个，并且每个节点是能够被连接到海誓山盟节点。 至少所述节点的一部分设置有被配置为产生指向性波束的多个A智能天线。 每个节点维护在消息发送到其他节点的传输中使用的其它节点和波束配置信息的列表。 当需要一个源节点到发送到目标节点，所述源节点检索光束配置信息和与定向到目标节点的指向性波束进行发送。

公开(公告)号：EP1561282A2

公开(公告)日：2005-08-10

申请号：EP03783366.2

申请日：2003-11-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KAZAKEVICH, Leonid ,  OZLUTURK, Fatih ,  DEMIR, Alpaslan

IPC: H04B1/00

CPC classification number: H04B7/0837 ,  H04B7/0871 ,  H04B17/309 ,  H04B17/318 ,  H04W52/42

Abstract: A wireless transmit/receive unit (WTRU) has multiple receivers with an interface to combine received signals to provide enhanced reception. A control unit selectively controls the powering of the receivers to limit power consumption based on selected parameters.

Abstract translation: 无线发射/接收单元（WTRU）具有多个具有组合接收信号以提供增强接收的接口的接收机。 控制单元选择性地控制接收机的供电以基于所选择的参数来限制功耗。

公开(公告)号：EP1188260B1

公开(公告)日：2004-07-14

申请号：EP00937742.5

申请日：2000-05-24

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： SEZGIN, Nadir ,  OZLUTURK, Fatih

IPC: H04B7/26

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70752 ,  H04B2201/70702 ,  H04W28/26 ,  H04W74/04 ,  H04W88/08

公开(公告)号：EP0836770B1

公开(公告)日：2002-10-09

申请号：EP96922615.8

申请日：1996-06-27

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： LOMP, Gary ,  OZLUTURK, Fatih ,  KOWALSKI, John

IPC: H04B7/005 ,  H04B7/26

CPC classification number: 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

Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.

Abstract translation: 多址，扩频通信系统通过电信线路处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时发送到 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及标识用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射机连接到所有调制解调器以将CDM处理的信号与全局导频码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号，并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率级的闭环功率控制系统以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。

公开(公告)号：EP1169781A1

公开(公告)日：2002-01-09

申请号：EP00907229.9

申请日：2000-02-10

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： OZLUTURK, Fatih

IPC: H04B1/707

CPC classification number: H04J13/0022 ,  H04B1/707 ,  H04B2201/70703 ,  H04J13/10

Abstract: A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two-pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.

公开(公告)号：EP1561365B1

公开(公告)日：2012-12-05

申请号：EP03774944.7

申请日：2003-10-23

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： SHIN, Sung-Hyuk ,  ZEIRA, Ariela ,  OZLUTURK, Fatih ,  GRIECO, Donald, M.

IPC: H04W52/22 ,  H04W52/08 ,  H04W52/24 ,  H04W52/44 ,  H04W52/28

CPC classification number: H04W52/228 ,  H04W52/08 ,  H04W52/24 ,  H04W52/287 ,  H04W52/44

公开(公告)号：EP2025189A2

公开(公告)日：2009-02-18

申请号：EP07776958.6

申请日：2007-05-09

Applicant: Interdigital Technology Corporation

Inventor： OZLUTURK, Fatih

IPC: H04Q7/38

CPC classification number: H04W74/0833 ,  H04B7/0413 ,  H04J13/0059 ,  H04L27/2608 ,  H04L27/2637 ,  H04W74/004 ,  H04W74/0866

Abstract: 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.

Abstract translation: 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）和用于恒幅零自相关（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。 当传输RACH传输时，WTRU可以提高传输功率，或者增加随后的RACH传输的传输功率。 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。

公开(公告)号：EP1779623A2

公开(公告)日：2007-05-02

申请号：EP05785474.7

申请日：2005-08-11

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： KWAK, Jaeyoung ,  OLESEN, Robert, Lind ,  BULTAN, Aykut ,  ZEIRA, Eldad ,  KOO, Chang-Soo ,  OZLUTURK, Fatih ,  HUANG, Yuejin ,  PASAD, Kalpendu, R.

IPC: H04L27/08

CPC classification number: H04L1/0606 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/066 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/006 ,  H04L27/156 ,  H04L27/2626 ,  H04L2027/0046 ,  Y02B70/30 ,  Y02D50/10

Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

Abstract translation: 本发明涉及用于在正交频分复用（OFDM）无线通信系统中实现空间频率块编码（SFBC）的方法和装置。 本发明适用于闭环模式和开环模式。 在闭环模式下，基于信道状态信息（CSI）执行功率加载和本征波束成形。 信道编码数据流被复用成两个或更多数据流。 基于每个复用数据流上的CSI执行功率加载。 对每个配对副载波的数据流执行SFBC编码。 然后，基于CSI执行特征波束形成以将特征波束分配到多个发射天线。 功率加载可以在两个或更多个SFBC编码块上或在每个本征模式上执行。 另外，功率负载可以在用于弱本征模式的副载波或副载波组之间执行。