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公开(公告)号：WO2005053209A2
公开(公告)日：2005-06-09
申请号：PCT/US2004039594
申请日：2004-11-24
Applicant: INTERDIGITAL TECH CORP , CHITRAPU PRABHAKAR R , BRIANCON ALAIN CHARLES LOUIS , KUMOLUYI AKIN O , CARLTON ALAN GERALD , VANGANURU KIRAN KUMAR S , HERSCHAFT RICHARD DAN , HOFFMANN JOHN ERICH , THOMMANA JOHN , ZHANG GUODONG , OLESEN ROBERT LIND , REZNIK ALEXANDER , SHAN TIEJUN , SHIN SUNG-HYUK , SINGHAL AMIT , PURKAYASTHA DEBASHISH
Inventor： CHITRAPU PRABHAKAR R , BRIANCON ALAIN CHARLES LOUIS , KUMOLUYI AKIN O , CARLTON ALAN GERALD , VANGANURU KIRAN KUMAR S , HERSCHAFT RICHARD DAN , HOFFMANN JOHN ERICH , THOMMANA JOHN , ZHANG GUODONG , OLESEN ROBERT LIND , REZNIK ALEXANDER , SHAN TIEJUN , SHIN SUNG-HYUK , SINGHAL AMIT , PURKAYASTHA DEBASHISH
CPC classification number: H04W12/04 , H04L9/3234 , H04L9/3247 , H04L2463/061 , H04L2463/103 , H04W12/02 , H04W12/10 , H04W88/02
Abstract: Tokens/keys are produced for wireless communications. These tokens/keys are used for watermarks, signature insertion, encryption and other uses. In one embodiment, contextual information is used to generate tokens/keys. The tokens/keys may be derived directly from the contextual information. The contextual information may be used in conjunction with other information to derive the tokens/keys. Tokens/keys may be exchanged between transmit/receive units. The exchange of these tokens/keys may be encrypted.
Abstract translation: 产生用于无线通信的令牌/密钥。 这些令牌/密钥用于水印，签名插入，加密和其他用途。 在一个实施例中，使用上下文信息来生成令牌/密钥。 令牌/密钥可以直接从上下文信息导出。 上下文信息可以与其他信息一起使用以导出令牌/密钥。 令牌/密钥可以在发送/接收单元之间交换。 这些令牌/密钥的交换可以被加密。
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公开(公告)号：WO2006124951A3
公开(公告)日：2007-12-06
申请号：PCT/US2006019008
申请日：2006-05-16
Applicant: INTERDIGITAL TECH CORP , SHAN TIEJUN
Inventor： SHAN TIEJUN
Abstract: A method and apparatus for use in a CDMA-type or OFDM/OFDMA-based multi-antenna system first selects an initial set of antenna weights and multiplies the selected antenna weights by copies of a transmission signal to produce a weighted transmission signal. In an OFDM/OFDMA-based implementation, a selected set of sub-carriers are modulated with the signal copies and then weighted using the antenna weights. The weighted transmission signal is transmitted using an initial overall transmission power. If an acknowledgement is not received within a predetermined time interval, the antenna weights are adjusted and/or the sub-carriers are reselected and a modified weighted transmission signal is transmitted. The overall transmission power is maintained at a fixed value as the antenna weights and/or selected sub-carriers are adjusted and is increased only if an acknowledgment is not received after a predetermined number of weight adjustments and/or sub-carrier re-selections.
Abstract translation: 一种用于基于CDMA / OFDM / OFDMA的多天线系统中的方法和装置首先选择一组初始天线权重，并通过传输信号的副本将选定的天线权重相乘以产生加权的传输信号。 在基于OFDM / OFDMA的实现中，使用信号副本对所选择的一组子载波进行调制，然后使用天线权重进行加权。 使用初始总发送功率发送加权发送信号。 如果在预定时间间隔内没有接收到确认，则天线权重被调整和/或重新选择副载波，并且发送修改的加权发送信号。 由于天线权重和/或选择的子载波被调整并且只有在经过预定次数的权重调整和/或副载波重新选择之后没有接收到确认的情况下，总传输功率被保持在固定值。
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3.发明申请METHOD AND APPARATUS FOR CONSTANT ENVELOPE ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING IN A WIRELESS SYSTEM 审中-公开无线系统中持续包络正交频分复用的方法与装置
公开(公告)号：WO2006118726A3
公开(公告)日：2007-11-15
申请号：PCT/US2006012111
申请日：2006-04-03
Applicant: INTERDIGITAL TECH CORP , GRIECO DONALD M , SHIN SUNG-HYUK , TSAI YINGMING , ZHANG GUODONG , CHITRAPU PRABHAKAR R , BRIANCON ALAIN CHARLES LOUIS , MARINIER PAUL , SHAN TIEJUN , SHAH YOGENDRA
Inventor： GRIECO DONALD M , SHIN SUNG-HYUK , TSAI YINGMING , ZHANG GUODONG , CHITRAPU PRABHAKAR R , BRIANCON ALAIN CHARLES LOUIS , MARINIER PAUL , SHAN TIEJUN , SHAH YOGENDRA
CPC classification number: H04L27/2003 , H04L27/2614
Abstract: In a wireless communication system comprising at least one wireless transmit/receive unit (WTRU), a base station, and a radio network controller (RNC), a method for constant envelope orthogonal frequency division multiplexin (CE-OFDM) modulation (430) comprises the WTRU (110) performing an inverse transform on the data (420). The WTRU next performs constant envelope (CE) modulation on the data and transmits the CE-OFDM data to the base station. The base station receives the data and CE demodulates the data. The base station performs a transform on the demodulated data.
Abstract translation: 在包括至少一个无线发射/接收单元（WTRU），基站和无线电网络控制器（RNC）的无线通信系统中，用于恒定包络正交频分多路复用（CE-OFDM）调制（430）的方法包括 所述WTRU（110）对所述数据执行逆变换（420）。 WTRU接下来对数据执行恒定包络（CE）调制，并将CE-OFDM数据发送到基站。 基站接收数据，CE解调数据。 基站对解调数据进行变换。
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4.发明公开METHOD AND APPARATUS FOR POWER CONTROL IN A MULTIPLE ANTENNA SYSTEM 审中-公开VERFAHREN UND VORRICHTUNG ZUR LEISTUNGSREGELUNG IN EINEM MEHRENTENNENSYSTEM
公开(公告)号：EP1882326A4
公开(公告)日：2008-08-20
申请号：EP06759982
申请日：2006-05-16
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: The method involves multiplying selected antenna weights to produce a weighted transmission signal. The weighted signal is transmitted using an initial overall transmission power. The antenna weights in the transmission signal are adjusted. The transmission signal is retransmitted until a satisfactory signal strength acknowledgement is received from an intended receiver. The overall transmission power level of the transmission signal is increased when the acknowledgement is not received within a preset number of antenna weight adjustments. Independent claims are also included for the following: (1) a multi-antenna transmitter comprising a signal generator (2) an integrated circuit comprising a signal generator. -
Abstract translation: 该方法涉及将选定的天线权重相乘以产生加权的传输信号。 使用初始总发射功率发送加权信号。 传输信号中的天线权重被调整。 重传传输信号，直到从预期接收机接收到令人满意的信号强度确认。 当在预设数量的天线加权调整中未接收到确认时，传输信号的总传输功率电平增加。 还包括以下独立权利要求：（1）多天线发射机，包括信号发生器（2）包括信号发生器的集成电路。
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公开(公告)号：GEP20105055B
公开(公告)日：2010-07-26
申请号：GEAP2006010433
申请日：2006-05-16
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: A method and apparatus for power control in multi-antenna systems, which reduce to minimum the power consumption in wireless communi¬ca¬tions. The method comprises selection of an initial set of antenna weights and multiplies the selected antenna weights to produce a weighted trans¬mission signal. The weighted transmission signal is transmitted using an initial overall transmission power. If an acknowledgement is not received within a predetermined time interval, the antenna weights are adjusted.
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Patent Agency Ranking
公开(公告)号：AU2009236012A1
公开(公告)日：2009-11-26
申请号：AU2009236012
申请日：2009-11-12
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: The method involves multiplying selected antenna weights to produce a weighted transmission signal. The weighted signal is transmitted using an initial overall transmission power. The antenna weights in the transmission signal are adjusted. The transmission signal is retransmitted until a satisfactory signal strength acknowledgement is received from an intended receiver. The overall transmission power level of the transmission signal is increased when the acknowledgement is not received within a preset number of antenna weight adjustments. Independent claims are also included for the following: (1) a multi-antenna transmitter comprising a signal generator (2) an integrated circuit comprising a signal generator.
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公开(公告)号：AR046663A1
公开(公告)日：2005-12-14
申请号：ARP040104342
申请日：2004-11-24
Applicant: INTERDIGITAL TECH CORP
Inventor： CHITRAPU PRABHAKAR R , BRIANCON ALAIN CHARLES LOUIS , KUMOLUYI AKIN O , CARLTON ALAN GERALD , VANGANURU KIRAN KUMAR , HOFFMANN JOHN ERICH , THOMANNA JOHN , ZHANG GUODONG , OLESEN ROBERT LIND , REZNIK ALEXANDER , SHAN TIEJUN , SHIN SUNG-HYUK , SINGHAL AMIT X , PURKAYASTHA DEBASHISH , HERSCHAFT RICHARD DAN
Abstract: Se producen fichas virtuales/claves para comunicaciones inalámbricas. Estas fichas virtuales/claves son utilizadas para marcas de agua, inserción de firma, encriptación y otros usos. En una forma de realización, se utiliza información contextual para generar fichas/claves. Estas fichas virtuales/claves pueden derivar directamente de la información contextual. La información contextual puede ser utilizada junto con otra información para derivar las fichas virtuales/claves. Pueden intercambiarse fichas virtuales/claves entre unidades de transmisión/recepción. El intercambio de estas fichas virtuales/claves puede ser encriptado.
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公开(公告)号：AR073124A2
公开(公告)日：2010-10-13
申请号：ARP090103257
申请日：2009-08-25
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: Un método de control de potencia de bucle abierto (OLPC) para ser utilizado en un transmisor de multi-antena, y el método incluye; (a) seleccionar ponderaciones de antena; (b) multiplicar las ponderaciones de antena seleccionadas a copias de una senal de transmision con el fin de generar una senal de transmision ponderada; (c) transmitir la senal de transmision ponderada mediante a través de antenas multiples; (d) repetir las etapas (a)-(c) sin incrementar la potencia de transmision total si no se recibe confirmacion en respuesta a la senal de transmision, siendo las etapas (a)-(c) repetidas por un numero predeterminado de veces hasta que se recibe una confirmacion en respuesta a la senal de transmision; y (e) repetir las etapas (a)-(c) con una potencia de transmision total incrementada si no se recibe confirmacion en respuesta a la senal de transmision hasta el numero predeterminado de veces. También se divulga un transmisor de multi-antena que emplea al método.
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公开(公告)号：AU2006247239A1
公开(公告)日：2006-11-23
申请号：AU2006247239
申请日：2006-05-16
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: The method involves multiplying selected antenna weights to produce a weighted transmission signal. The weighted signal is transmitted using an initial overall transmission power. The antenna weights in the transmission signal are adjusted. The transmission signal is retransmitted until a satisfactory signal strength acknowledgement is received from an intended receiver. The overall transmission power level of the transmission signal is increased when the acknowledgement is not received within a preset number of antenna weight adjustments. Independent claims are also included for the following: (1) a multi-antenna transmitter comprising a signal generator (2) an integrated circuit comprising a signal generator.
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公开(公告)号：BRPI0613201A2
公开(公告)日：2010-12-28
申请号：BRPI0613201
申请日：2006-05-16
Applicant: INTERDIGITAL TECH CORP
Inventor： SHAN TIEJUN
Abstract: The method involves multiplying selected antenna weights to produce a weighted transmission signal. The weighted signal is transmitted using an initial overall transmission power. The antenna weights in the transmission signal are adjusted. The transmission signal is retransmitted until a satisfactory signal strength acknowledgement is received from an intended receiver. The overall transmission power level of the transmission signal is increased when the acknowledgement is not received within a preset number of antenna weight adjustments. Independent claims are also included for the following: (1) a multi-antenna transmitter comprising a signal generator (2) an integrated circuit comprising a signal generator.
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