公开(公告)号：WO2004045096A2

公开(公告)日：2004-05-27

申请号：PCT/US2003/035260

申请日：2003-11-05

Applicant: QUALCOMM, INCORPORATED

Inventor： SHIU, Da-shan ,  MALLADI, Durga P. ,  BHASHYAM, Srikrishna

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H04B1/7097 ,  H04L1/20 ,  H04L25/0228

Abstract: Noise measurements are made within a fraction of a single symbol period of a longest orthogonal code symbol. A control processor (520) identifies an unoccupied code having a spreading factor that is less than a longest spreading factor for the system. A despreader (512) measures symbol energy based on the unoccupied code and a noise estimator (516) generates noise estimations based on the measured symbol energies. The subscriber station uses similar techniques in order to perform channel estimations within a period that is a fraction of a symbol period of a longest-spreading-factor code.

Abstract translation: 在最长正交码符号的单个符号周期的一小部分内进行噪声测量。 控制处理器（520）识别具有小于系统的最长扩展因子的扩展因子的未占用代码。 解扩器（512）基于未占用代码来测量符号能量，并且噪声估计器（516）基于所测量的符号能量产生噪声估计。 订户站使用类似的技术，以便在作为最长扩展因子码的符号周期的一部分的周期内执行信道估计。

公开(公告)号：WO2003079576A2

公开(公告)日：2003-09-25

申请号：PCT/US2003/007952

申请日：2003-03-13

Applicant: QUALCOMM, INCORPORATED

Inventor： WILLENEGGER, Serge ,  VAYANOS, Alkinoos Hector ,  MALLADI, Durga P. ,  TIEDEMANN, Edward G., Jr. ,  GRILLI, Francesco ,  BLANZ, Josef J.

IPC: H04B7/005

CPC classification number: H04W16/14 ,  H04B7/022 ,  H04B2201/709709 ,  H04L1/0014 ,  H04L1/0067 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1635 ,  H04W52/12 ,  H04W52/16 ,  H04W52/20 ,  H04W52/283 ,  H04W52/288 ,  H04W52/325 ,  H04W52/58 ,  H04W72/02

Abstract: Method and apparatus for reducing interference in a wireless communication system when the source of interference is a deterministic component of the system. In one embodiment, the receiver weights the transmitters according to when the source of interference is transmitted. Further, the transmitter may employ power boosting to overcome the source of interference. In one embodiment, a W-CDMA system transmits a sync channel concurrently with physical channels, wherein the sync channel is not orthogonal to the physical channels. The receiver may cancel the sync channel when receiving control or data information. Similarly, the receiver may weight the transmissions from multiple transmitters.

Abstract translation: 当干扰源是系统的确定性组件时，用于减少无线通信系统中的干扰的方法和装置。 在一个实施例中，接收机根据何时发送干扰源对发射机进行加权。 此外，发射机可以采用功率提升来克服干扰源。 在一个实施例中，W-CDMA系统与物理信道同时发送同步信道，其中同步信道不与物理信道正交。 当接收到控制或数据信息时，接收机可以取消同步信道。 类似地，接收机可以对来自多个发射机的传输进行加权。

公开(公告)号：WO2005122425A2

公开(公告)日：2005-12-22

申请号：PCT/US2005/019544

申请日：2005-06-03

Applicant: QUALCOMM Incorporated ,  AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

Inventor： AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

IPC: H04B7/00

CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

Abstract translation: 描述了用于无线通信系统的帧结构和传输技术。 在一帧结构中，超帧包括多个外帧，并且每个外帧包括多个帧，并且每个帧包括多个时隙。 每个超帧中的时隙基于加载被分配用于下行链路和上行链路以及不同的无线电技术（例如，W-CDMA和OFDM）。 每个物理信道在超帧中的每个外帧的至少一个帧中分配至少一个时隙。 为每个下行OFDM时隙生成OFDM波形并复用到时隙上。 为每个下行链路W-CDMA时隙产生W-CDMA波形并复用到该时隙上。 为多路复用的W-CDMA和OFDM波形生成调制信号并在下行链路上发送。 每个物理信道以突发方式传输。 每个物理信道的时隙分配和编码和调制可以针对每个超帧而改变。

公开(公告)号：WO2005018270A3

公开(公告)日：2005-02-24

申请号：PCT/US2004/025318

申请日：2004-08-04

Applicant: QUALCOMM INCORPORATED ,  WEI, Yongbin ,  TIEDEMANN, Edward G., Jr. ,  GAAL, Peter ,  MALLADI, Durga P. ,  PUIG OSES, David ,  SARKAR, Sandip ,  LUNDBY, Stein A. ,  CHEN, Tao ,  JAIN, Avinash ,  DAMNJANOVIC, Aleksandar ,  WILLENEGGER, Serge D.

Inventor： WEI, Yongbin ,  TIEDEMANN, Edward G., Jr. ,  GAAL, Peter ,  MALLADI, Durga P. ,  PUIG OSES, David ,  SARKAR, Sandip ,  LUNDBY, Stein A. ,  CHEN, Tao ,  JAIN, Avinash ,  DAMNJANOVIC, Aleksandar ,  WILLENEGGER, Serge D.

IPC: H04Q7/38

Abstract: Embodiments disclosed herein address the need in the art for an extended acknowledgment/rate control channel. In one aspect, an acknowledgment command and a rate control command are combined to form a combined command. In another aspect, the combined command is generated in accordance with a constellation of points, each point corresponding to a pair consisting of a rate control command and an acknowledgment command. In yet another aspect, the points of the constellation are designed to provide the desired probability of error for the respective command pairs. In yet another aspect, a common rate control command is transmitted along with a combined or dedicated rate control command. Various other aspects are also presented. These aspects have the benefit of reduced overhead while providing acknowledgment and rate control to single remote stations and/or groups of remote stations.

公开(公告)号：WO2005122627A1

公开(公告)日：2005-12-22

申请号：PCT/US2005/019541

申请日：2005-06-03

Applicant: QUALCOMM INCORPORATED ,  AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

Inventor： AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

IPC: H04Q7/38

CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

Abstract: To transmit overhead information for broadcast and multicast services in a system that utilizes multiple radio technologies, time slots used for OFDM in a super-frame are initially ascertained. Overhead information for multiple streams to be sent in the time slots used for OFDM is generated. The overhead information conveys the time slots and the coding and modulation used for the streams and may be given in various forms. Multiple records may be formed for the overhead information for the streams. The overhead information for the streams is processed and time division multiplexed with the data for the streams in the super-frame. Information indicating the time slots used for OFDM in the super-frame may be sent separately or included in the overhead information. An indicator may also be appended to each stream to indicate whether there is any change in the overhead information for the stream in the next super-frame.

Abstract translation: 为了在利用多个无线电技术的系统中传送用于广播和多播服务的开销信息，最初确定了用于超帧中的OFDM的时隙。 产生用于在用于OFDM的时隙中发送的多个流的开销信息。 开销信息传达用于流的时隙和编码和调制，并且可以以各种形式给出。 可以为流的开销信息形成多个记录。 对流的开销信息进行处理，并与超帧中的流的数据进行时分复用。 指示用于超帧中的OFDM的时隙的信息可以单独发送或包括在开销信息中。 指示符也可以附加到每个流以指示在下一个超帧中的流的开销信息是否存在任何改变。

公开(公告)号：WO2004064294A2

公开(公告)日：2004-07-29

申请号：PCT/US2004/000324

申请日：2004-01-07

Applicant: QUALCOMM, INCORPORATED

Inventor： SMEE, John E. ,  WALTON, Jay R. ,  MALLADI, Durga P. ,  WILLENEGGER, Serge

IPC: H04L

CPC classification number: H04W36/30

Abstract: A method and apparatus for performing handoff in a wireless communication system with multi-carrier modulation (MCM) for a forward link and CDMA for a reverse link. In one embodiment, a method of performing handoff on the forward link for a terminal is provided in which signal quality of pilots received by the terminal from a plurality of base stations in the system is determined. A particular base station for subsequent data transmission on the forward link to the terminal is selected based on the signal quality determined for the plurality of base stations. A request to be handed off to the particular base station is initiated if the particular base station is different than a currently selected base station.

Abstract translation: 一种用于在用于前向链路的多载波调制（MCM）和用于反向链路的CDMA的无线通信系统中执行切换的方法和装置。 在一个实施例中，提供了一种在终端的前向链路上执行切换的方法，其中终端从系统中的多个基站接收的导频的信号质量被确定。 基于为多个基站确定的信号质量来选择用于在到终端的前向链路上的后续数据传输的特定基站。 如果特定基站不同于当前选择的基站，则启动要切换到特定基站的请求。

公开(公告)号：WO2003079576A3

公开(公告)日：2003-09-25

申请号：PCT/US2003/007952

申请日：2003-03-13

Applicant: QUALCOMM, INCORPORATED

Inventor： WILLENEGGER, Serge ,  VAYANOS, Alkinoos Hector ,  MALLADI, Durga P. ,  TIEDEMANN, Edward G., Jr. ,  GRILLI, Francesco ,  BLANZ, Josef J.

IPC: H04B7/005

Abstract: Method and apparatus for reducing interference in a wireless communication system when the source of interference is a deterministic component of the system. The method comprises the steps of receiving transmissions on a plurality of channels, each associated with a block error rate; selecting a channel for application to outer loop power control based on the error rates; and performing outer loop power control based on the selected channel, which is the dedicated control channel. The method can be applied in W-CDMA systems.

公开(公告)号：EP1483845B1

公开(公告)日：2008-05-07

申请号：EP03721373.3

申请日：2003-03-13

Applicant: Qualcomm, Incorporated

Inventor： WILLENEGGER, Serge ,  VAYANOS, Alkinoos Hector ,  MALLADI, Durga P. ,  TIEDEMANN, Edward G., Jr. ,  GRILLI, Francesco ,  BLANZ, Josef J., c/o Wagner & Geyer

IPC: H04B7/005

CPC classification number: H04W16/14 ,  H04B7/022 ,  H04B2201/709709 ,  H04L1/0014 ,  H04L1/0067 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1635 ,  H04W52/12 ,  H04W52/16 ,  H04W52/20 ,  H04W52/283 ,  H04W52/288 ,  H04W52/325 ,  H04W52/58 ,  H04W72/02

Abstract: Method and apparatus for reducing interference in a wireless communication system when the source of interference is a deterministic component of the system. In one embodiment, the receiver weights the transmitters according to when the source of interference is transmitted. Further, the transmitter may employ power boosting to overcome the source of interference. In one embodiment, a W-CDMA system transmits a sync channel concurrently with physical channels, wherein the sync channel is not orthogonal to the physical channels. The receiver may cancel the sync channel when receiving control or data information. Similarly, the receiver may weight the transmissions from multiple transmitters.

公开(公告)号：EP1561283A2

公开(公告)日：2005-08-10

申请号：EP03768690.4

申请日：2003-11-05

Applicant: Qualcomm, Incorporated

Inventor： SHIU, Da-shan ,  MALLADI, Durga P. ,  BHASHYAM, Srikrishna

IPC: H04B1/10 ,  H04L25/02

CPC classification number: H04B1/1027 ,  H04B1/7097 ,  H04L1/20 ,  H04L25/0228

Abstract: A channel estimation method comprises determining that every longest-spreading-factor code having a common parent code with an all-ones pilot code is unoccupied. Channel estimation is performed using the common parent code during two or more time periods within a time period of the all-ones pilot code.

公开(公告)号：WO2005122516A1

公开(公告)日：2005-12-22

申请号：PCT/US2005/019542

申请日：2005-06-03

Applicant: QUALCOMM Incorporated ,  AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

Inventor： AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

IPC: H04L27/26

CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

Abstract: Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g., W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM, and the waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna.

Abstract translation: 描述了使用循环延迟分集和飞行员交错传输数据的技术。 对于循环延迟分集，生成具有不同循环延迟持续时间的OFDM符号。 OFDM符号的循环延迟持续时间可以被选择为相对于由相邻基站发送的OFDM符号的循环延迟持续时间而变化的时间。 在不同符号周期的多组子带上生成和复用FDM导频。 可以生成用于第二无线电技术（例如，W-CDMA）的波形，用于使用该无线电技术发送的数据。 OFDM符号被复用到用于OFDM的时隙上，并且用于第二无线电技术的波形被复用到用于该无线电技术的时隙上。 可以基于多路复用的OFDM符号和波形来生成一个或多个调制信号。 每个调制信号从相应的天线发送。