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41. 发明授权

EP2256953B1 Method and apparatus for utilizing channel state information in a wireless communication system 有权
公开(公告)号：EP2256953B1
公开(公告)日：2019-04-24
申请号：EP10176954.5
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： H04B7/0417 , H04B7/06 , H04B7/08 , H04L1/00 , H04L5/00 , H04L25/02 , H04L25/03

42. 发明授权

EP2278731B1 MIMO system with multiple spatial multiplexing modes 有权
标题翻译： MIMO系统使用多个空间多路复用模式
公开(公告)号：EP2278731B1
公开(公告)日：2016-10-05
申请号：EP10180147.0
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： H04B7/06 , H04L1/00 , 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

43. 发明授权

EP1901442B1 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：EP1901442B1
公开(公告)日：2016-04-27
申请号：EP07024476.9
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： H04W52/34 , H04W52/24 , H04W52/26 , H04W52/28 , H04W72/12 , H04B17/336 , H04B17/382
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.

44. 发明授权

EP1830509B1 Method and apparatus for allocating resources in a multiple-input multiple-output (MIMO) communication system 有权
标题翻译：一种用于在通信系统中具有多个输入和多个输出的资源分配方法和装置，
公开(公告)号：EP1830509B1
公开(公告)日：2013-10-09
申请号：EP07011912.8
申请日：2002-05-15
申请人： QUALCOMM INCORPORATED
发明人： Walton, Jay R. , Wallace, Mark , Howard, Steven J.
IPC分类号： H04L1/06
CPC分类号： H04W16/00 , H04B7/0417 , H04B7/0452 , H04B7/061 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L25/0204 , H04L2025/03426 , H04W16/28 , H04W84/14

45. 发明公开

EP2528291A1 Noise estimation for wireless communication 审中-公开
标题翻译：劳schäung。。
公开(公告)号：EP2528291A1
公开(公告)日：2012-11-28
申请号：EP12180580.8
申请日：2007-04-17
申请人： Qualcomm Incorporated
发明人： Wallace, Mark , Monsen, Peter
IPC分类号： H04L25/02 , H04L25/03 , H04L1/20 , H04L27/26
CPC分类号： H04L1/20 , H04L25/0242 , H04L25/03305 , H04L27/2613 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Techniques for deriving and using noise estimate for data reception in a wireless communication system are described. A noise estimate may be derived for each packet received in a data transmission. Data detection may then be performed for each packet using the noise estimate for that packet. For noise estimation, a first sample sequence and a second sample sequence may be obtained from each receiver used for data reception. A phase offset between the first and second sample sequences may be determined and applied to the first sample sequence for each receiver to obtain a third sample sequence for that receiver. A noise estimate may then be derived based on the power of the differences between the second and third sample sequences for the at least one receiver.
摘要翻译：描述用于在无线通信系统中导出和使用用于数据接收的噪声估计的技术。可以为在数据传输中接收的每个分组导出噪声估计。然后可以使用该分组的噪声估计对每个分组执行数据检测。对于噪声估计，可以从用于数据接收的每个接收机获得第一采样序列和第二采样序列。可以确定第一和第二采样序列之间的相位偏移并将其应用于每个接收机的第一采样序列，以获得该接收机的第三采样序列。然后可以基于对于至少一个接收器的第二和第三采样序列之间的差的功率来导出噪声估计。

46. 发明公开

EP2285171A3 Method and Apparatus for Controlling Transmissions of a Communications System 审中-公开
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：EP2285171A3
公开(公告)日：2012-05-23
申请号：EP10184213.6
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： H04W52/34 , H04W52/24 , H04W52/26 , 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： A method for processing a signal to be transmitted from a transmitting entity to a receiving entity. The method comprises selecting a transmit channel from at least two transmit channels associated with the transmitting entity, wherein each of the at least two transmit channels has an associated back-off factor and transmit power, and wherein the transmit power for each of the at least two transmit channels is based on the back-off factor for the transmit channel, and wherein the selecting is based on the back-off factor of the selected transmit channel and on at least one attribute associated with the receiving entity; and assigning the selected transmit channel to the receiving entity.

47. 发明公开

EP2237441A3 Method and Apparatus for Controlling Transmissions of a Communications System 有权
标题翻译：控制通信系统传输的方法和设备
公开(公告)号：EP2237441A3
公开(公告)日：2012-03-14
申请号：EP10169713.4
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.
摘要翻译：在一些方面，通信系统中的每个小区可被设计为根据一组退避因子来操作，该组退避因子识别与退避因子相关联的信道的峰值发射功率电平的减小。回退因子被定义为在减少干扰量的同时向大部分用户提供所需的功率。在其他一些方面，小区使用自适应重用方案进行操作，该方案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。重用方案最初被定义并且资源被分配给单元。在操作过程中，检测系统运行状况的变化，并根据检测到的变化重新定义重用方案。例如，可以检测单元的加载条件，并且可以重新分配资源和/或可以重新定义重用方案。在其他方面，提供了用于效率调度数据传输并将信道分配给用户的技术。数据传输可以根据用户优先级，某些公平标准，系统要求和其他因素进行调度。用户根据许多信道分配方案分配到可用信道。还提供了频道指标，可用于优先考虑用户和频道指定。

48. 发明公开

EP2378726A2 METHOD AND APPARATUS FOR SINGULAR VALUE DECOMPOSITION OF A CHANNEL MATRIX 审中-公开
标题翻译：一种信道矩阵奇异值分解的方法和装置
公开(公告)号：EP2378726A2
公开(公告)日：2011-10-19
申请号：EP11173875.3
申请日：2003-10-27
申请人： Qualcomm Incorporated
发明人： Walton, Jay, Rodney , Ketchum, John,W. , Wallace, Mark , Howard, Steven,J
IPC分类号： H04L25/02 , H04L27/26 , H04B7/04
CPC分类号： H04L5/0007 , H04B7/0421 , H04B7/043 , H04B7/0669 , H04B7/0697 , H04B7/0854 , H04L1/0017 , H04L5/0023 , H04L5/0028 , H04L5/0037 , H04L25/0232 , H04L25/0248 , H04L27/2602 , H04W28/20 , H04W52/50 , H04W72/04
摘要： Techniques to use OFDM symbols of different sizes to achieve greater efficiency for OFDM systems. The system traffic may be arranged into different categories (e.g., control data, user data, and pilot data). For each category, one or more OFDM symbols of the proper sizes may be selected for use based on the expected payload size for the traffic in that category.
In a further aspect, the channel response matrix for each of a plurality of subbands is decomposed in a manner to avoid arbitrary phase rotations from subband to subband by constraining the first element in each column of the first unitary matrix to be a non-negative value.
In another aspect, steering vectors are interpolated between subbands.
摘要翻译：使用不同尺寸的OFDM符号来实现OFDM系统的更高效率的技术。系统业务量可以被安排成不同的类别（例如，控制数据，用户数据和导频数据）。对于每个类别，可以基于该类别中的业务的预期有效负载大小来选择适当大小的一个或多个OFDM符号。在另一方面，通过将第一酉矩阵的每一列中的第一元素约束为非负值来以用于避免从子带到子带的任意相位旋转的方式来对多个子带中的每一个的信道响应矩阵进行分解。另一方面，导引向量在子带之间被内插。

49. 发明公开

EP2363970A2 Pilots for MIMO communication systems 有权
标题翻译： PilotsignalefürMIMO-Vermittlungssysteme
公开(公告)号：EP2363970A2
公开(公告)日：2011-09-07
申请号：EP11153572.0
申请日：2003-10-24
申请人： QUALCOMM Incorporated
发明人： Ketchum, John W. , Wallace, Mark , Walton, Rodney J. , Howard, Steven J.
IPC分类号： H04L1/06 , H04L25/02
CPC分类号： H04B7/0421 , H04B7/043 , H04B7/0615 , H04B7/0669 , H04B7/0684 , H04B7/0697 , H04B7/0854 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04L1/0071 , H04L1/0618 , H04L1/08 , H04L1/16 , H04L5/0023 , H04L5/0026 , H04L5/0048 , H04L5/005 , H04L5/006 , H04L25/0204 , H04L25/0226 , H04L25/03343 , H04L27/2613 , H04L2027/0089 , H04W16/28 , H04W28/20 , H04W52/50
摘要： Pilots suitable for use in MIMO systems and capable of supporting various functions are described. The various types of pilot include-a beacon pilot, a MIMO pilot, a steered reference or steered pilot, and a carrier pilot. The beacon pilot is transmitted from all transmit antennas and may be used for timing and frequency acquisition. The MIMO pilot is transmitted from all transmit antennas but is covered with different orthogonal codes assigned to the transmit antennas. The MIMO pilot may be used for channel estimation. The steered reference is transmitted on specific eigenmodes of a MIMO channel and is user terminal specific. The steered reference may be used for channel estimation. The carrier pilot may be transmitted on designated subbands/antennas and may be used for phase tracking of a carrier signal. Various pilot transmission schemes may be devised based on different combinations of these various types of pilot.
摘要翻译：描述适用于MIMO系统并能够支持各种功能的飞行员。各种类型的导频包括信标导频，MIMO导频，导向基准或导向导频，以及载波导频。信标导频从所有发射天线发射，并可用于定时和频率采集。 MIMO导频从所有发射天线发射，但被分配给发射天线的不同正交码覆盖。 MIMO导频可以用于信道估计。引导参考在MIMO信道的特定本征模式上发送，并且是用户终端特定的。转向参考可用于信道估计。载波导频可以在指定的子带/天线上发射，并且可以用于载波信号的相位跟踪。可以基于这些各种类型的飞行员的不同组合来设计各种导频传输方案。

50. 发明公开

EP2357769A2 Channel calibration for a time division duplexed communication system 有权
标题翻译： Kanalkalibrierungfürein Duplexkommunikationssystem mit Zeitunterteilung
公开(公告)号：EP2357769A2
公开(公告)日：2011-08-17
申请号：EP11155678.3
申请日：2003-10-24
申请人： Qualcomm Incorporated
发明人： Wallace, Mark , Ketchum, John, W. , Walton, Rodney, J. , Howard, Steven J
IPC分类号： H04L25/03
CPC分类号： H04B7/0421 , H04B7/0615 , H04B7/0619 , H04B7/0669 , H04B7/0697 , H04B7/0854 , H04B17/336 , H04L1/00 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04L1/0059 , H04L1/0061 , H04L1/0068 , H04L1/0071 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L1/16 , H04L5/1469 , H04L25/0224 , H04L25/0226 , H04L25/0242 , H04L25/03006 , H04L25/03343 , H04L27/2601 , H04L27/2602 , H04L27/261 , H04L27/2647 , H04L2001/0093 , H04W16/28 , H04W52/50 , H04W74/04
摘要： Techniques to calibrate the downlink and uplink channels to account for differences in the frequency responses of the transmit and receive chains at an access point and a user terminal. In one embodiment, pilots are transmitted on the downlink and uplink channels and used to derive estimates of the downlink and uplink channel responses, respectively. Two sets of correction factors are then determined based on the estimates of the downlink and uplink channel responses. A calibrated downlink channel is formed by using a first set of correction factors for the downlink channel, and a calibrated uplink channel is formed by using a second set of correction factors for the uplink channel. The first and second sets of correction factors may be determined using a matrix-ratio computation or a minimum mean square error (MMSE) computation. The calibration may be performed in real time based on over-the-air transmission.
摘要翻译：校准下行链路和上行链路信道以考虑接入点和用户终端处的发射和接收链的频率响应的差异的技术。在一个实施例中，导频在下行链路和上行链路信道上被传输，并且用于分别导出下行链路和上行链路信道响应的估计。然后基于下行链路和上行链路信道响应的估计来确定两组校正因子。通过使用用于下行链路信道的第一组校正因子形成校准的下行链路信道，并且通过使用用于上行链路信道的第二组校正因子形成校准的上行链路信道。可以使用矩阵比计算或最小均方误差（MMSE）计算来确定第一和第二组校正因子。校准可以基于空中传输实时执行。

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