公开(公告)号：WO2005053209A3

公开(公告)日：2005-06-09

申请号：PCT/US2004/039594

申请日：2004-11-24

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  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

IPC: H04L9/00

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.

公开(公告)号：WO2009108666A3

公开(公告)日：2009-09-03

申请号：PCT/US2009/035083

申请日：2009-02-25

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  VANGANURU, Kiran, Kumar, S. ,  LAWTON, William E. ,  STERNBERG, Gregory, S.

Inventor： VANGANURU, Kiran, Kumar, S. ,  LAWTON, William E. ,  STERNBERG, Gregory, S.

IPC: H04W52/04

Abstract: A method and apparatus for performing closed loop transmit power control of a fractional dedicated physical channel (F-DPCH) are disclosed. Transmit power control (TPC) symbols on an F-DPCH and common pilot channel (CPICH) symbols are received. A short term signal power estimate is calculated using the TPC symbols, and a short term noise power estimate is calculated using the CPICH symbols. A short term signal-to-interference ratio (SIR) on the F-DPCH is calculated. A long term signal power estimate and a long term noise power estimate are calculated using the TPC symbols. A long term SIR is calculated and compared to a TPC quality target. An SIR target is adjusted based on comparison of the long term SIR to the TPC quality target. The short term SIR is compared to the SIR target and a TPC command is generated based on comparison of the short term SIR to the SIR target.

公开(公告)号：WO2009108666A2

公开(公告)日：2009-09-03

申请号：PCT/US2009035083

申请日：2009-02-25

Applicant: INTERDIGITAL TECH CORP ,  VANGANURU KIRAN KUMAR S ,  LAWTON WILLIAM E ,  STERNBERG GREGORY S

Inventor： VANGANURU KIRAN KUMAR S ,  LAWTON WILLIAM E ,  STERNBERG GREGORY S

IPC: H04B7/005

CPC classification number: H04W52/12 ,  H04W52/143 ,  H04W52/16 ,  H04W52/225 ,  H04W52/241 ,  H04W52/286 ,  H04W52/325

Abstract: A method and apparatus for performing closed loop transmit power control of a fractional dedicated physical channel (F-DPCH) are disclosed. Transmit power control (TPC) symbols on an F-DPCH and common pilot channel (CPICH) symbols are received. A short term signal power estimate is calculated using the TPC symbols, and a short term noise power estimate is calculated using the CPICH symbols. A short term signal-to-interference ratio (SIR) on the F-DPCH is calculated. A long term signal power estimate and a long term noise power estimate are calculated using the TPC symbols. A long term SIR is calculated and compared to a TPC quality target. An SIR target is adjusted based on comparison of the long term SIR to the TPC quality target. The short term SIR is compared to the SIR target and a TPC command is generated based on comparison of the short term SIR to the SIR target.

Abstract translation: 公开了一种用于执行分数专用物理信道（F-DPCH）的闭环发送功率控制的方法和设备。 接收F-DPCH和公共导频信道（CPICH）符号上的发射功率控制（TPC）符号。 使用TPC码元来计算短期信号功率估计，并且使用CPICH码元来计算短期噪声功率估计。 计算F-DPCH上的短期信号干扰比（SIR）。 使用TPC符号来计算长期信号功率估计和长期噪声功率估计。 计算长期SIR并与TPC质量目标进行比较。 基于长期SIR与TPC质量目标的比较来调整SIR目标。 将短期SIR与SIR目标进行比较，并且基于将SIR目标与短期SIR进行比较来生成TPC命令。

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

IPC: G06T1/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04L12/56 ,  H04W12/02 ,  H04W88/02 ,  H04L

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。