专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP2267926B1 MIMO system with multiple spatial multiplexing modes 有权
标题翻译： Mimo-System mit mehreren Raummultiplexmoden
公开(公告)号：EP2267926B1
公开(公告)日：2017-02-22
申请号：EP10174919.0
申请日：2003-10-24
申请人： Qualcomm Incorporated
发明人： Walton,Jay, Rodney , Ketchum, John, W , Wallace, Mark , Howard, Steven, J
IPC分类号： H04L1/00 , H04B7/06 , H04B7/08
CPC分类号： H04B7/0417 , H04B7/0421 , H04B7/043 , H04B7/0434 , H04B7/0452 , H04B7/0628 , H04B7/0669 , H04B7/0689 , H04B7/0697 , H04B7/0854 , H04B7/0871 , H04J11/003 , H04J11/0053 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04L1/06 , H04L5/0073 , H04L25/0224 , H04L25/0226 , H04L25/0242 , H04L25/0248 , H04L25/03343 , H04L25/03891 , H04L27/2601 , H04L27/2602 , H04L27/261 , H04L27/2647 , H04L27/2675 , H04W16/28 , H04W52/50 , H04W72/046 , H04W74/04

2. 发明公开

EP2337292A2 Random access for wireless multiple-access communication systems 有权
标题翻译： ZüfallszugrifffürdrahtloseVielfachzugriffsübertragungssysteme
公开(公告)号：EP2337292A2
公开(公告)日：2011-06-22
申请号：EP11162015.9
申请日：2003-10-24
申请人： Qualcomm Incorporated
发明人： Walton, J., Rodney , Ketchum, John W. , Wallace, Mark , Howard, Steven J.
IPC分类号： H04L27/26 , H04W74/08 , H04L1/00
CPC分类号： H04W74/0833 , H04B7/0413 , H04B7/043 , H04B7/0669 , H04B7/0697 , H04B7/0854 , H04L1/0001 , H04L1/0009 , H04L1/0017 , H04L1/0059 , H04L1/0061 , H04L1/0068 , H04L1/0071 , H04L1/0618 , H04L1/08 , H04L1/16 , H04L25/0224 , H04L25/0226 , H04L25/0242 , H04L25/03343 , H04L27/2601 , H04L27/2602 , H04L27/261 , H04L27/2647 , H04L2001/0093 , H04W28/20 , H04W52/50 , H04W74/002 , H04W74/08 , H04W74/0866 , H04W88/06
摘要： Techniques for facilitating random access in wireless multiple-access communication systems. A random access channel (RACH) is defined to comprise a "fast" RACH (F-RACH) and a "slow" RACH (S-RACH). The F-RACH and S-RACH can efficiently support user terminals in different operating states and employ different designs. The F-RACH can be used to quickly access the system, and the S-RACH is more robust and can support user terminals in various operating states and conditions. The F-RACH may be used by user terminals that have registered with the system and can compensate for their round trip delays (RTDs) by properly advancing their transmit timing. The S-RACH may be used by user terminals that may or may not have registered with the system, and may or may not be able to compensate for their RTDs. The user terminals may use the F-RACH or S-RACH, or both, to gain access to the system.
摘要翻译：用于促进无线多址通信系统中的随机接入的技术。随机接入信道（RACH）被定义为包括“快速”RACH（F-RACH）和“慢”RACH（S-RACH）。 F-RACH和S-RACH可以有效地支持不同操作状态的用户终端，并采用不同的设计。 F-RACH可用于快速访问系统，并且S-RACH更加健壮，并且可以支持各种操作状态和条件下的用户终端。 F-RACH可以由已经向系统注册的用户终端使用，并且可以通过适当地提前发送定时来补偿它们的往返延迟（RTD）。用户终端可以使用S-RACH，可以或可能没有向系统注册，并且可能或可能不能补偿其RTD。用户终端可以使用F-RACH或S-RACH或两者来获得对系统的访问。

3. 发明公开

EP2256954A2 Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information 有权
标题翻译：方法和装置用于在MIMO COMMUNICATION SYSTEM USING信道状态信息的数据处理（CSI）
公开(公告)号：EP2256954A2
公开(公告)日：2010-12-01
申请号：EP10177175.6
申请日：2002-05-07
申请人： Qualcomm Incorporated
发明人： Walton, Jay R. , Wallace, Mark , Ketchum, John W. , Howard, Steven J.
IPC分类号： H04B7/08 , H04B7/06 , H04L1/06
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0689 , H04B7/0697 , H04B7/0854 , H04B7/10 , H04B7/12 , H04L1/0009 , H04L1/0026 , H04L1/0048 , H04L1/005 , H04L1/0071
摘要： Techniques to 'successively' process received signals at a receiver unit in a MIMO system to recover transmitted data, and to 'adaptively' process data at a transmitter unit based on channel state information available for the MIMO channel. A successive cancellation receiver processing technique is used to process the received signals and performs a number of iterations to provide decoded data streams. For each iteration, input (e.g., received) signals for the iteration are processed to provide one or more symbol streams. One of the symbol streams is selected and processed to provide a decoded data stream. The interference due to the decoded data stream is approximately removed (i.e., canceled) from the input signals provided to the next iteration. The channel characteristics are estimated and reported back to the transmitter system and used to adjust (i.e., adapt) the processing (e.g., coding, modulation, and so on) of data prior to transmission.
摘要翻译：技术“依次”过程在MIMO系统中，以恢复反mitted数据在接收器单元的接收信号，并在发射器单元基于所述MIMO信道的可用信道状态信息“自适应地”处理数据。甲连续消除的接收机处理技术来处理所接收的信号，并执行多次迭代以提供经解码的数据流。对于每次迭代，用于迭代输入（E. G.，接收到的）的信号进行处理，以提供一个或多个符号流。一个符号的流被选择和处理，以提供一个解码的数据流。由于解码的数据流的干扰是约从设置到下一次迭代的输入信号中取出（即，取消）。的信道特性估计和报告回发射器系统和用于调节（即，适应）的处理（例如，编码，调制，等等）的数据的传输之前。

4. 发明公开

EP2237440A2 Method and apparatus for measuring and reporting channel state information in a high efficiency, high performance communications system 有权
标题翻译： Verfahren und Vorrichtung zur Messung der Kanalzustandsinformation
公开(公告)号：EP2237440A2
公开(公告)日：2010-10-06
申请号：EP10169330.7
申请日：2001-03-20
申请人： Qualcomm Incorporated
发明人： Wallace, Mark , Walton, Jay, R. , Jalali, Ahmad
IPC分类号： H04B7/00
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/06 , H04B7/0626 , H04B7/0673 , H04B7/08 , H04B7/12 , H04L1/0003 , H04L1/0026 , H04L1/0029 , H04L5/0023 , H04L5/0026 , H04L5/0041 , H04L5/0048 , H04L5/0051 , H04L5/0091 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/0248 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W52/08 , H04W52/42
摘要： A method for transmitting pilot signals used for measuring and reporting channel state information, CSI, in a multiple input/multiple output, MIMO, system (100). The method comprises the steps of: dividing a set of sub-channels into multiple subsets of sub-channels, wherein the set of sub-channels is defined over an orthogonal frequency division multiplexing (OFDM) symbol; assigning to each subset of sub-channels a sequence of pilot symbols to be transmitted; generating orthogonal pilot signals by encoding two or more subsequent OFDM symbols with an orthogonal code; assigning one or more orthogonal pilot signals to a transmit antenna or communication link; and transmitting said OFDM symbols via said transmit antenna or communication link.
摘要翻译：一种用于在多输入/多输出MIMO系统（100）中发送用于测量和报告信道状态信息（CSI）的导频信号的方法。该方法包括以下步骤：将一组子信道划分成多个子信道子集，其中该子信道集合通过正交频分复用（OFDM）符号来定义; 向子信道的每个子集分配要发送的导频符号序列; 通过用正交码对两个或更多个后续OFDM符号进行编码来产生正交导频信号; 将一个或多个正交导频信号分配给发射天线或通信链路; 以及经由所述发射天线或通信链路发送所述OFDM符号。

5. 发明公开

EP1901443A3 Method and apparatus for controlling transmissions of a communication system 有权
标题翻译： einem Kommunikationssystem的Verfahren und Vorrichtung zur Steuerung vonÜbertragungen
公开(公告)号：EP1901443A3
公开(公告)日：2010-08-04
申请号：EP07024477.7
申请日：2001-03-20
申请人： QUALCOMM Incorporated
发明人： Walton, Jay R. c/o Qualcomm Inc. , Wallace, Mark , Holtzman, Jack , Antonio, Franklin P.
IPC分类号： H04B17/00
CPC分类号： H04W52/343 , H04B17/336 , H04B17/382 , H04W52/24 , H04W52/241 , H04W52/244 , H04W52/267 , H04W52/286 , H04W52/346 , H04W72/1231 , H04W72/1242 , H04W72/1252
摘要： In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required power to a large percentage of the users while reducing the amount of interference. In some other aspects, the cells operate using an adaptive reuse scheme that allows the cells to efficiently allocate and reallocate the system resources to reflect changes in the system. A reuse scheme is initially defined and resources are allocated to the cells. During operation, changes in the operating conditions of the system are detected and the reuse scheme is redefined as necessary based on the detected changes. For example, the loading conditions of the cells can be detected, and the resources can be reallocated and/or the reuse scheme can be redefined. In yet other aspects, techniques are provided to efficiency schedule data transmissions and to assign channels to users. Data transmissions can be scheduled based on user priorities, some fairness criteria, system requirements, and other factors. Users are assigned to available channels based on a number of channel assignment schemes. Channel metrics are also provided, which can be used to prioritize users and for channel assignments.
摘要翻译：在一些方面，通信系统中的每个小区可以被设计为根据一组回退因子进行操作，所述一组回退因子识别与所述回退因子相关联的信道的峰值发射功率水平的降低。限制因素被定义为为大量用户提供所需的功率，同时减少干扰量。在一些其他方面，小区使用自适应重用方案来操作，其允许小区有效地分配和重新分配系统资源以反映系统中的变化。最初定义了重用方案，并将资源分配给小区。在操作期间，检测到系统的操作条件的变化，并且基于检测到的变化，根据需要重新定义重新使用方案。例如，可以检测小区的加载条件，并且可以重新分配资源和/或重新定义重用方案。在其他方面，提供了用于效率调度数据传输并向用户分配信道的技术。数据传输可以根据用户优先级，一些公平标准，系统要求和其他因素进行调度。基于多个信道分配方案将用户分配给可用信道。还提供了渠道指标，可用于对用户和渠道分配进行优先级排序。

6. 发明公开

EP1901443A2 Method and apparatus for controlling transmissions of a communication system 有权
标题翻译：用于控制在通信系统中的传输方法和装置
公开(公告)号：EP1901443A2
公开(公告)日：2008-03-19
申请号：EP07024477.7
申请日：2001-03-20
申请人： QUALCOMM Incorporated
发明人： Walton, Jay R. , Wallace, Mark , Holtzman, Jack , Antonio, Franklin P.
IPC分类号： H04B7/005
CPC分类号： H04W52/343 , H04B17/336 , H04B17/382 , H04W52/24 , H04W52/241 , H04W52/244 , H04W52/267 , H04W52/286 , H04W52/346 , H04W72/1231 , H04W72/1242 , H04W72/1252
摘要： In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required power to a large percentage of the users while reducing the amount of interference. In some other aspects, the cells operate using an adaptive reuse scheme that allows the cells to efficiently allocate and reallocate the system resources to reflect changes in the system. A reuse scheme is initially defined and resources are allocated to the cells. During operation, changes in the operating conditions of the system are detected and the reuse scheme is redefined as necessary based on the detected changes. For example, the loading conditions of the cells can be detected, and the resources can be reallocated and/or the reuse scheme can be redefined. In yet other aspects, techniques are provided to efficiency schedule data transmissions and to assign channels to users. Data transmissions can be scheduled based on user priorities, some fairness criteria, system requirements, and other factors. Users are assigned to available channels based on a number of channel assignment schemes. Channel metrics are also provided, which can be used to prioritize users and for channel assignments.

7. 发明公开

EP1786118A1 Method and apparatus for utilizing channel state information in a wireless communication system 有权
标题翻译：一种用于在无线通信系统中使用的信道状态信息的方法和装置
公开(公告)号：EP1786118A1
公开(公告)日：2007-05-16
申请号：EP07103174.4
申请日：2002-03-22
申请人： Qualcomm, Incorporated
发明人： Ling, Funyun , Walton, Jay, R. , Howard, Steven, J. , Wallace, Mark , Ketchum, John W.
IPC分类号： H04B7/08 , H04B7/06
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0632 , H04B7/0854 , H04B7/0891 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L5/0023 , H04L5/0044 , H04L5/006 , H04L5/0091 , H04L25/0204 , H04L25/021 , H04L25/0228 , H04L25/0244 , H04L25/0248 , H04L25/03159 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for transmitting data from a transmitter unit to a receiver unit in a multiple-input multiple-output (MIMO) communication system. In one method, at the receiver unit, a number of signals are received via a number of receive antennas, with the received signal from the transmitter unit. The received signals are processed to derive channel state information (CSI) indicative of characteristics of a number of transmission channels used for data transmission. The CSI is transmitted back to the transmitter unit. At the transmitter unit, the CSI from the receiver unit is received and data for transmission to the receiver units I processed based on the received CSI.
摘要翻译：涉及用于在多输入多输出（MIMO）通信系统中从发射器单元将数据发送到接收器单元。在一种方法中，在接收器单元，多个信号经由接收天线的数量接收，用从发射器单元接收的信号。所接收的信号进行处理以导出信道状态信息（CSI），其指示了一些用于数据传输的传输信道的特性的。该CSI是反式mitted回发射单元。在发射机单元中，来自接收器单元的CSI被接收并且用于发射到接收器单元的数据处理我基于接收到的CSI。

8. 发明公开

EP1619847A3 Method and apparatus for generating pilot signals in a MIMO system 审中-公开
标题翻译：用于在MIMO系统中产生的导频信号的方法和装置
公开(公告)号：EP1619847A3
公开(公告)日：2006-02-08
申请号：EP05020008.8
申请日：2001-07-11
申请人： Qualcomm, Incorporated
发明人： Walton, Jay R. , Wallace, Mark , Jalali, Ahmad
IPC分类号： H04L27/26 , H04L5/02 , H04L1/06
CPC分类号： H04L47/24 , H04L1/06 , H04L1/0618 , H04L1/0656 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L5/0064 , H04L25/0226 , H04L27/2602 , H04L27/261 , H04L27/2637 , H04L27/2653 , H04L47/10 , H04L2001/0098
摘要： The present invention relates to a method of generating pilots in a wireless multiple-input multiple output(MIMO) communication system, comprising: obtaining a pilot symbol for each antenna in a plurality of antennas; obtaining an orthogonal sequence for each antenna in the plurality of antennas, wherein the plurality of antennas are assigned different orthogonal sequences; and covering the pilot symbol for each antenna with the orthogonal sequence for the antenna to obtain a sequence of covered pilot symbols for the antenna, wherein a plurality of sequences of covered pilot symbols for a plurality of orthogonal pilots are obtained for the plurality of antennas.

9. 发明公开

EP1619847A2 Method and apparatus for generating pilot signals in a MIMO system 审中-公开
标题翻译： einem MIMO系统中的Verfahren und Vorrichtung zur Erzeugung von Pilotsignalen
公开(公告)号：EP1619847A2
公开(公告)日：2006-01-25
申请号：EP05020008.8
申请日：2001-07-11
申请人： Qualcomm, Incorporated
发明人： Walton, Jay R. , Wallace, Mark , Jalali, Ahmad
IPC分类号： H04L27/26 , H04L5/02 , H04L1/06
CPC分类号： H04L47/24 , H04L1/06 , H04L1/0618 , H04L1/0656 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L5/0064 , H04L25/0226 , H04L27/2602 , H04L27/261 , H04L27/2637 , H04L27/2653 , H04L47/10 , H04L2001/0098
摘要： The present invention relates to a method of generating pilots in a wireless multiple-input multiple output(MIMO) communication system, comprising: obtaining a pilot symbol for each antenna in a plurality of antennas; obtaining an orthogonal sequence for each antenna in the plurality of antennas, wherein the plurality of antennas are assigned different orthogonal sequences; and covering the pilot symbol for each antenna with the orthogonal sequence for the antenna to obtain a sequence of covered pilot symbols for the antenna, wherein a plurality of sequences of covered pilot symbols for a plurality of orthogonal pilots are obtained for the plurality of antennas.
摘要翻译：本发明涉及一种在无线多输入多输出（MIMO）通信系统中产生导频的方法，包括：在多个天线中获得每个天线的导频符号; 获得所述多个天线中的每个天线的正交序列，其中所述多个天线被分配不同的正交序列; 并用天线的正交序列覆盖每个天线的导频符号，以获得天线的覆盖导频符号序列，其中为多个天线获得多个正交导频的多个覆盖的导频符号序列。

10. 发明授权

EP2337292B1 Random access for wireless multiple-access communication systems 有权
标题翻译：随机接入无线多址传输系统
公开(公告)号：EP2337292B1
公开(公告)日：2013-05-08
申请号：EP11162015.9
申请日：2003-10-24
申请人： Qualcomm Incorporated
发明人： Walton, J., Rodney , Ketchum, John W. , Wallace, Mark , Howard, Steven J.
IPC分类号： H04L12/28 , H04L1/00 , H04W74/08 , H04L27/26
CPC分类号： H04W74/0833 , H04B7/0413 , H04B7/043 , H04B7/0669 , H04B7/0697 , H04B7/0854 , H04L1/0001 , H04L1/0009 , H04L1/0017 , H04L1/0059 , H04L1/0061 , H04L1/0068 , H04L1/0071 , H04L1/0618 , H04L1/08 , H04L1/16 , H04L25/0224 , H04L25/0226 , H04L25/0242 , H04L25/03343 , H04L27/2601 , H04L27/2602 , H04L27/261 , H04L27/2647 , H04L2001/0093 , H04W28/20 , H04W52/50 , H04W74/002 , H04W74/08 , H04W74/0866 , H04W88/06

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式