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公开(公告)号：WO2006020741A3
公开(公告)日：2006-06-01
申请号：PCT/US2005028487
申请日：2005-08-11
Applicant: INTERDIGITAL TECH CORP , KWAK JAEYOUNG , OLESEN ROBERT LIND , BULTAN AYKUT , ZEIRA ELDAD , KOO CHANG-SOO , OZLUTURK FATIH , HUANG YUEJIN , PASAD KALPENDU R
Inventor： KWAK JAEYOUNG , OLESEN ROBERT LIND , BULTAN AYKUT , ZEIRA ELDAD , KOO CHANG-SOO , OZLUTURK FATIH , HUANG YUEJIN , PASAD KALPENDU R
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 , 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: 本发明涉及一种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。 在闭环模式中，基于信道状态信息（CSI）执行功率负载和特征波束形成。 信道编码数据流被多路复用为两个或多个数据流。 基于每个复用数据流上的CSI执行功率加载。 对每个配对子载波的数据流执行SFBC编码。 然后，基于CSI执行特征波束形成，以将本征束分布到多个发射天线。 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上执行。 另外，对于弱本征模式，可以跨子载波或子载波组执行功率负载。
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公开(公告)号：WO2005020595A2
公开(公告)日：2005-03-03
申请号：PCT/US2004025810
申请日：2004-08-10
Applicant: INTERDIGITAL TECH CORP , ZHANG GUODONG , ZEIRA ELDAD
Inventor： ZHANG GUODONG , ZEIRA ELDAD
CPC classification number: H04W72/06 , H04B7/2618 , H04L5/0053 , H04L5/0091 , H04L5/14 , H04W72/0446 , H04W72/082 , H04W84/042
Abstract: Dynamic resource allocation is performed by first generating a plurality of slot sequences. A figure of merit based on weighted interference signal code power (ISCP) and weighted resource units is then generated for each timeslot of each slot sequence. The timeslots within each slot sequence are then arranged in a decreasing figure of merit. The slot sequences are the processed to determine whether they can support the code to be transmitted.
Abstract translation: 通过首先生成多个时隙序列来执行动态资源分配。 然后针对每个时隙序列的每个时隙生成基于加权干扰信号码功率（ISCP）和加权资源单元的品质因数。 然后，每个时隙序列中的时隙被排列成递减的品质因数。 时隙序列被处理以确定它们是否可以支持要发送的代码。
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公开(公告)号：WO03071693A2
公开(公告)日：2003-08-28
申请号：PCT/US0305237
申请日：2003-02-20
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ARIELA , ZEIRA ELDAD
CPC classification number: H04W88/181 , H04B2201/709709 , H04J13/16 , H04W52/346 , H04W72/00 , H04W72/0466
Abstract: The invention includes various approaches to assigning codes in wireless code division multiple access communication systems. The invention estimates the cross code correlation between codes to base the code assignment. One approach assigns codes having a high cross correlation to users having a low transmission power level. Another approach assigns code groups having a high cross correlation to a same coded composite transport channel. Another approach assigns codes using a cross correlation factor of each code to minimize a system noise rise. Another approach uses transmission or reception diversity to assign bad code groups to users having a different diversity relationship. Another approach uses a diversity factor and a cross code correlation factor to assign codes.
Abstract translation: 本发明包括在无线码分多址通信系统中分配码的各种方法。 本发明估计基于代码分配的代码之间的交叉码相关性。 一种方法将具有高互相关性的代码分配给具有低发射功率电平的用户。 另一种方法将具有高互相关性的代码组分配给相同的编码复合传输信道。 另一种方法使用每个代码的互相关因子分配代码以最小化系统噪声上升。 另一种方法使用发送或接收分集来向具有不同分集关系的用户分配不良代码组。 另一种方法使用分集因子和交叉码相关因子来分配代码。
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24.发明申请DOWNLINK POWER CONTROL FOR MULTIPLE DOWNLINK TIME SLOTS IN TDD COMMUNICATION SYSTEMS 审中-公开TDD通信系统中多个下行时隙的下行电源控制
公开(公告)号：WO0184740A2
公开(公告)日：2001-11-08
申请号：PCT/US0113720
申请日：2001-04-30
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ELDAD , TERRY STEPHEN E , ZEIRA ARIELA
IPC: H04L1/00 , H04B1/69 , H04B7/005 , H04B7/26 , H04J3/00 , H04W52/10 , H04W52/14 , H04W52/18 , H04W52/20 , H04W52/24 , H04B7/00
CPC classification number: H04J3/1694 , H04B1/69 , H04B17/24 , H04B17/345 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/143 , H04W52/20 , H04W52/241 , H04W52/243 , H04W72/042 , H04W72/0446 , H04W72/0473 , H04W72/082
Abstract: The present invention is a method and system for controlling downlink transmission power levels in a spread spectrum time division communications system having frames with time slots for communication, which receives at a user equipment (UE) a downlink communication from a base station and determines an error rate of the received communication. The UE then produces power level adjustments for each of the time slots based in part on the error rate and transmits an uplink communication to the base station which includes the power level. In response to the power level adjustments and(or) other information, transmission power level is set for each time slot in the downlink communication.
Abstract translation: 本发明是一种用于控制具有用于通信的时隙的帧的扩展频谱时分通信系统中的下行链路传输功率电平的方法和系统，其在用户设备（UE）处从基站接收下行链路通信并确定错误 接收到的通信速率。 然后，UE部分地基于错误率产生每个时隙的功率电平调整，并向包括功率电平的基站发送上行链路通信。 响应于功率电平调整和（或）其他信息，针对下行链路通信中的每个时隙设置发送功率电平。
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公开(公告)号：WO0158041A2
公开(公告)日：2001-08-09
申请号：PCT/US0103380
申请日：2001-02-02
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ARIELA , ZEIRA ELDAD , REZNIK ALEXANDER , TERRY STEPHEN E
IPC: H04B1/707 , H04B1/7073 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B7/00 , H04J3/00 , H04J11/00 , H04J13/00 , H04J13/16 , H04Q7/38
CPC classification number: H04B1/7103 , H04B1/707 , H04B1/70735 , H04B1/7105 , H04B2001/70935 , H04B2201/70701 , H04B2201/70709 , H04J13/00 , H04J13/16
Abstract: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.
Abstract translation: 使用码分多址的无线时分双工通信系统具有基站和用户设备。 系统使用通信突发进行通信。 每个通信突发具有唯一的信道化码和中间码。 每个中间码代码被映射到一组至少一个信道化码。 对于要在基站的时隙中发送的每个通信突发，确定映射到该突发的信道化码的中间码。 在时隙中生成和发送通信突发。 每个突发具有确定的其信道化码的中间码代码。 用户设备接收突发并确定每个接收到的中间码。 用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。
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Patent Agency Ranking26.发明公开RESOURCE ALLOCATION TO USERS IN SLOTTED CODE DIVISION MULTIPLE ACCESS SYSTEMS USING BEAMS 审中-公开用于用户的资源分配开槽扩频码分多址系统辐射KEULEN
公开(公告)号：EP1529357A4
公开(公告)日：2010-04-07
申请号：EP03728869
申请日：2003-05-13
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ELDAD
IPC: H04B1/707 , H04B7/212 , H04B7/005 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/10 , H04B7/26 , H04W16/28 , H04W52/42 , H04W72/08
CPC classification number: H04W72/082 , H04B7/0408 , H04B7/0617 , H04B7/086 , H04W16/28 , H04W24/10 , H04W52/42 , H04W72/02 , H04W72/0446
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公开(公告)号：EP1654888A4
公开(公告)日：2007-03-21
申请号：EP04780617
申请日：2004-08-10
Applicant: INTERDIGITAL TECH CORP
Inventor： ZHANG GUODONG , ZEIRA ELDAD
CPC classification number: H04W72/06 , H04B7/2618 , H04L5/0053 , H04L5/0091 , H04L5/14 , H04W72/0446 , H04W72/082 , H04W84/042
Abstract: Dynamic resource allocation is performed by first generating a plurality of slot sequences. A figure of merit based on weighted interference signal code power (ISCP) and weighted resource units is then generated for each timeslot of each slot sequence. The timeslots within each slot sequence are then arranged in a decreasing figure of merit. The slot sequences are the processed to determine whether they can support the code to be transmitted.
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28.发明公开METHOD FOR CONTROL OF CONTENTION-BASED WIRELESS ACCESS 有权VERFAHREN ZUR STEUERUNG EINES AUF WETTBEWERB BASIERENDEN DRAHTLOSEN ZUGRIFFS
公开(公告)号：EP1495556A4
公开(公告)日：2005-08-17
申请号：EP03728433
申请日：2003-04-16
Applicant: INTERDIGITAL TECH CORP
Inventor： CAVE CHRISTOPHER , ZEIRA ELDAD
CPC classification number: H04L1/0061 , H04W24/00 , H04W28/18 , H04W74/08
Abstract: The present invention is a method for controlling access to a contention-based communication channel. Error types of a transmitted communication signal over the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to the classification to control the rate at which individual error types occur.
Abstract translation: 本发明是用于控制对基于竞争的通信信道的访问的方法。 通过通信信道发送的通信信号的错误类型被分类并且通信信道的相应参数响应于分类被调整以控制发生各个错误类型的速率。
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29.发明公开MITIGATION OF WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) TO WTRU INTERFERENCE USING MULTIPLE ANTENNAS OR BEAMS 审中-公开REDUCTION之间的无线发射/接收单元（WTRU）使用多个天线波束或相互干扰的
公开(公告)号：EP1738564A4
公开(公告)日：2009-05-06
申请号：EP05725282
申请日：2005-03-10
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ELDAD
CPC classification number: H04B7/0617 , H04B7/0408 , H04B7/0695 , H04B7/088 , Y02D70/00 , Y02D70/444
Abstract: Multiple antenna elements of a WTRU are used to form an adaptive antenna beam pattern for receiving signals in the downlink direction. The WTRU utilizes the formed antenna beam to form a transmission antenna beam for transmitting signals in the uplink direction. In an alternate embodiment, the multiple antenna elements are used to form a plurality of fixed, predetermined antenna beams. The WTRU then selects and switches to the one of the predetermined beams that yields the best downlink reception signals. The WTRU utilizes the selected beam pattern to transmit signals in the uplink direction. In an alternate embodiment, the WTRU receives spectral arrangement information and utilizing this information to avoid transmitting in the direction of spectrally adjacent WTRUs.
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30.发明公开METHOD AND SYSTEM FOR CONTROLLING ACCESS TO A WIRELESS COMMUNICATION MEDIUM 有权VERFAHREN UND VORRICHTUNG ZUR ZUGANGSSTEUERUNG ZU EINEM DRAHTLOSEN KOMMUNIKATIONSMEDIUM
公开(公告)号：EP1782578A4
公开(公告)日：2008-08-06
申请号：EP05783894
申请日：2005-08-05
Applicant: INTERDIGITAL TECH CORP
Inventor： GRANDHI SUDHEER A , CHANDRA ARTY , LEVY JOSEPH S , SHAHEEN KAMEL M , TERRY STEPHEN E , ZEIRA ELDAD
CPC classification number: H04W48/10 , H04B7/02 , H04B7/0413 , H04B7/2612 , H04W72/005 , H04W72/0446 , H04W74/08 , H04W74/0816 , H04W84/12 , H04W88/08 , Y02D70/00 , Y02D70/1222 , Y02D70/142 , Y02D70/22 , Y02D70/23 , Y02D70/442 , Y02D70/449
Abstract: A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA), at least one management SRA (MSRA) and a contention period. An extended beacon (EB) including information about the SRA and MSRA is transmitted for. The MAC architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.
Abstract translation: 一种在无线通信系统中控制对介质的访问的方法和系统。 在时域中定义超帧结构以包括具有至少一个调度资源分配（SRA），至少一个管理SRA（MSRA）和争用周期的无竞争周期（CFP）。 发送包括关于SRA和MSRA的信息的扩展信标（EB）。 MAC架构降低了站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且对于实时（RT）流量更有效，同时保持完全兼容性。
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