公开(公告)号：US09331756B2

公开(公告)日：2016-05-03

申请号：US13642290

申请日：2010-04-20

申请人： Paolo Priotti

发明人： Paolo Priotti

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04W72/04

CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/066 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/048

摘要： A multiple-user multiple input-multiple output wireless communication system uses a set of multiple subcarriers arranged in plural subsets or resource blocks. Precoding of signals transmitted from a base station to user terminals involves acquiring channel state information on the connection channel between the base station and user terminals in the plurality. Channel quality indicators are detected with user terminals for respective subsets of resource blocks to produce user/resource block pairs having associated channel quality indicators. The user/resource block pairs are subjected to selection as a function of the channel quality indicators associated therewith so that precoding is performed by acquiring channel state information exclusively for the user/resource block pairs surviving the selection as a function of the channel quality indicators and, possibly, other selection steps as a function of other parameters, such as, speed, maximum bit rate, and direction of arrival or angular spread in a multiple-stage selection process.

摘要翻译： 多用户多输入多输出无线通信系统使用以多个子集或资源块排列的一组多个子载波。 从基站向用户终端发送的信号的预编码涉及在多个基站与用户终端之间的连接信道上取得信道状态信息。 用资源块的各个子集的用户终端检测信道质量指示符，以产生具有相关信道质量指示符的用户/资源块对。 用户/资源块对作为与其相关联的信道质量指示符的函数进行选择，使得通过仅针对作为信道质量指示符的函数的选择存在的用户/资源块对获取信道状态信息来执行预编码，并且 可能的其他选择步骤作为其他参数的函数，诸如在多级选择过程中的速度，最大比特率以及到达方向或角度扩展。

公开(公告)号：US08817904B2

公开(公告)日：2014-08-26

申请号：US13520028

申请日：2009-12-30

申请人： Ivano Salvatore Collotta ,  Gian Michele Dell'Aera ,  Bruno Melis ,  Fabio Mondin ,  Paolo Priotti

发明人： Ivano Salvatore Collotta ,  Gian Michele Dell'Aera ,  Bruno Melis ,  Fabio Mondin ,  Paolo Priotti

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0697

摘要： A method is provided for selecting a precoding matrix to be used in an MIMO communication system. The MIMO communication system includes a transmitter, a receiver and a communication channel. The precoding matrix is used by the transmitter to precode codewords to be transmitted to the receiver over the communication channel. At the receiver, an optimum precoding matrix within a codebook of precoding matrices is determined based on a metric related to the power of received signal layers. An indication is then fed back from the receiver to the transmitter to enable the transmitter to select the optimum precoding matrix from the codebook.

摘要翻译： 提供一种用于选择将在MIMO通信系统中使用的预编码矩阵的方法。 MIMO通信系统包括发射机，接收机和通信信道。 发射机使用预编码矩阵来对通过通信信道发送到接收机的码字进行预编码。 在接收机处，基于与接收信号层的功率有关的度量来确定预编码矩阵码本内的最佳预编码矩阵。 然后，将指示从接收机反馈到发射机，以使得发射机能够从码本中选择最佳的预编码矩阵。

公开(公告)号：US20140206377A1

公开(公告)日：2014-07-24

申请号：US14342698

申请日：2011-09-08

申请人： Paolo Priotti

发明人： Paolo Priotti

IPC分类号： H04W16/14 ,  H04L5/00

CPC分类号： H04W16/14 ,  H04L5/0032 ,  H04W72/0453 ,  H04W72/0493 ,  H04W72/1231 ,  H04W72/1252

摘要： An inter-operator radio resource sharing method for sharing radio resources between two or more radio communication systems each controlled by a respective operator and configured to control respective proprietary radio resources and to provide respective served user equipments with radio communication services. The inter-operator radio resource sharing method: determines, by each radio communication system, a bandwidth of respective shared radio resources belonging to the respective proprietary radio resources based on a traffic load related to guaranteed-quality radio communication services requested by the respective served user equipments; signals, by each radio communication system, the respective shared radio resources to other radio communication systems; and provides, by each radio communication system, the respective served user equipments with the radio communication services on the respective proprietary radio resources and on the shared radio resources signalled by other radio communication systems.

摘要翻译： 一种运营商间无线电资源共享方法，用于在两个或更多个无线电通信系统之间共享无线电资源，每个无线电通信系统各自由相应运营商控制，并且被配置为控制各自的专有无线电资源并向相应的服务用户设备提供无线电通信服务 运营商间无线资源共享方法：基于与各服务用户请求的保证质量无线通信服务有关的业务负载，由各无线通信系统确定属于各专有无线资源的各共享无线资源的带宽 设备; 每个无线电通信系统将各自的共享无线电资源发送给其他无线电通信系统; 并且通过每个无线电通信系统向相应的服务用户设备提供各个专有无线电资源上的无线电通信业务以及由其他无线电通信系统发信号的共享无线电资源。

公开(公告)号：US08625807B2

公开(公告)日：2014-01-07

申请号：US13126983

申请日：2008-10-31

申请人： Paolo Priotti

发明人： Paolo Priotti

IPC分类号： H04L1/02 ,  H04K1/04

CPC分类号： H04L27/2621

摘要： A multi-carrier data communication is selectively operable in one of different communication modes which result in differently structured communication signals, the communication being configured for processing a data item intended to be transmitted to generate different transmission candidate data; selecting one of the transmission candidate data for transmission; selecting one of the communication modes based on the selected data item; and transmitting the selected data item using the selected communication mode.

摘要翻译： 多载波数据通信可选择性地在不同通信模式之一中工作，这导致不同结构的通信信号，该通信被配置用于处理意图被发送的数据项以产生不同的传输候选数据; 选择所述传输候选数据之一进行传输; 基于选择的数据项选择通信模式之一; 以及使用所选择的通信模式发送所选择的数据项。

公开(公告)号：US08843170B2

公开(公告)日：2014-09-23

申请号：US12449438

申请日：2007-10-03

申请人： Sergio Barberis ,  Paolo Priotti

发明人： Sergio Barberis ,  Paolo Priotti

IPC分类号： H04B7/00 ,  H04B7/185 ,  H04B7/216 ,  H04B17/00 ,  H04L27/26 ,  H04W24/00 ,  H04W28/04

CPC分类号： H04B17/005 ,  H04B17/24 ,  H04B17/345 ,  H04L27/2602 ,  H04W24/00 ,  H04W28/04

摘要： A method for characterizing interference in a radio communication system including a plurality of user equipment communicating with transceiver stations, includes: determining quantities indicative of interference (attenuation or power) experienced by a transceiver station interfered by interfering user equipment; and exchanging between transceiver stations information based on these quantities and concerning interference from the interfering user equipment. In particular, the user equipment is in communication with respective serving transceiver stations, and exchanging includes sending from the serving transceiver stations to the interfered transceiver stations information concerning interference from user equipment served by the serving transceiver stations and interfering with the interfered transceiver stations. The method further includes grouping, by the serving transceiver station, the interfering user equipment according to a given grouping criterion in order to form groups thereof.

摘要翻译： 一种用于表征包括与收发机台通信的多个用户设备的无线电通信系统中的干扰的方法，包括：确定指示由干扰用户设备干扰的收发机所经历的干扰（衰减或功率）的量; 并且基于这些数量和收到来自干扰用户设备的干扰的收发台之间的信息交换。 特别地，用户设备与各个服务收发台进行通信，并且交换包括从服务收发台向受干扰的收发台发送关于由服务收发台服务的用户设备的干扰以及干扰受干扰的收发信台的信息。 该方法还包括由服务收发台根据给定的分组标准对干扰用户设备进行分组，以便形成其组。

公开(公告)号：US08467731B2

公开(公告)日：2013-06-18

申请号：US13503985

申请日：2009-10-26

申请人： Marco Caretti ,  Ivano Salvatore Collotta ,  Maurizio Fodrini ,  Paolo Priotti ,  Roberto Rossi

发明人： Marco Caretti ,  Ivano Salvatore Collotta ,  Maurizio Fodrini ,  Paolo Priotti ,  Roberto Rossi

IPC分类号： H04B1/00

CPC分类号： H04W16/10 ,  H04W16/14 ,  H04W72/08

摘要： A radio resource scheduling method for scheduling radio resources used for communications in a radio communication system includes user equipment configured to communicate with transceiver stations on the radio resources. The transceiver stations are configured to exchange coordination messages concerning radio resources affected by intra-system interference. The radio resource scheduling method includes allocating to each user equipment served by a transceiver station a corresponding radio resource and a corresponding transmission power level to communicate with the serving transceiver station. Allocating is based on coordination messages exchanged by the serving transceiver station.

摘要翻译： 一种用于调度无线电通信系统中用于通信的无线电资源的无线电资源调度方法，包括被配置为与无线电资源上的收发信机通信的用户设备。 收发站被配置为交换关于受系统内干扰影响的无线电资源的协调消息。 无线电资源调度方法包括向收发机服务的每个用户设备分配相应的无线电资源和相应的发送功率电平以与服务收发台进行通信。 分配是基于由服务收发台交换的协调消息。

公开(公告)号：US08462646B2

公开(公告)日：2013-06-11

申请号：US12449437

申请日：2007-02-09

申请人： Sergio Barberis ,  Paolo Priotti

发明人： Sergio Barberis ,  Paolo Priotti

IPC分类号： G01R31/08

CPC分类号： H04B17/005 ,  H04B17/24 ,  H04B17/345 ,  H04L27/2602 ,  H04W24/00 ,  H04W28/04

摘要： A method for characterizing interference in a radio communication system including a plurality of radio transceiver stations configured to communicate with user equipment, includes: measuring, by user equipment in radio communication with a serving transceiver station, quantities indicative of interference from interfering transceiver stations; sending the measured quantities to the serving transceiver station; associating at least one codebook with the serving transceiver station, the codebook including a number of codewords each representing a respective quantized interference situation in an area covered by the serving transceiver station; and identifying in the codebook a codeword representative of the quantities measured by the user equipment.

摘要翻译： 一种用于表征无线电通信系统中的干扰的方法，包括被配置为与用户设备进行通信的多个无线电收发站，包括：通过与服务收发台进行无线电通信的用户设备测量指示来自干扰收发台的干扰的量; 将测量的数量发送到服务收发台; 将至少一个码本与所述服务收发台相关联，所述码本包括多个码字，每个代码字表示由所述服务收发台覆盖的区域中的相应的量化干扰情况; 以及在码本中识别代表由用户设备测量的量的码字。

公开(公告)号：US07308063B2

公开(公告)日：2007-12-11

申请号：US10396118

申请日：2003-03-25

申请人： Paolo Priotti

发明人： Paolo Priotti

IPC分类号： H04L7/04

CPC分类号： H04L27/2672 ,  H04L27/266 ,  H04L27/2675

摘要： In an orthogonal frequency division multiplexing (OFDM) system, a receiver of an OFDM signal via an air interface defines training symbols to be included in the frame structure of the air interface and a post-FFT receiver algorithm that can efficiently estimate a fractional frequency offset (e.g., a frequency offset less than a single intercarrier spacing). The algorithm may be modified to estimate a large frequency offset (e.g., of more than a single intercarrier spacing) using increased hardware complexity. The algorithm does not need a correlator block in its simplest implementation. The frequency detection itself features excellent performance in a very low SNR environment. However, if noise plus timing error is present, system parameters may be designed to substantially assure good performance in low SNR.

摘要翻译： 在正交频分复用（OFDM）系统中，经由空中接口的OFDM信号的接收机定义要包括在空中接口的帧结构中的训练符号和可以有效地估计分数频率偏移的后FFT接收机算法 （例如，小于单个载波间隔的频率偏移）。 可以使用增加的硬件复杂度来修改算法来估计大的频率偏移（例如，多于单个载波间隔）。 该算法在其最简单的实现中不需要相关器块。 频率检测本身在非常低的SNR环境下具有出色的性能。 然而，如果存在噪声加定时误差，则可以设计系统参数以基本上确保在低SNR下的良好性能。

公开(公告)号：US09973932B2

公开(公告)日：2018-05-15

申请号：US13504113

申请日：2009-10-26

申请人： Sergio Barberis ,  Andrea Buldorini ,  Paolo Priotti

发明人： Sergio Barberis ,  Andrea Buldorini ,  Paolo Priotti

IPC分类号： H04W16/10 ,  H04W72/08

CPC分类号： H04W16/10 ,  H04W72/08

摘要： An interference coordination method for a radio communication system includes a plurality of user equipment configured to communicate on radio resources with transceiver stations exchanging between transceiver stations one or more coordination messages concerning interference on an interfered radio resource, and determining a score of a potential allocation of the interfered radio resource to potentially-interfered user equipment based on said coordination message or messages. In particular, the radio resource scheduling method includes generating, for a transceiver station serving respective served user equipment, a set of candidate aggregate allocations including corresponding potential allocations of radio resources to respective served user equipment, performing the interference coordination method to determine a score of each potential allocation in the candidate aggregate allocations, computing a total score of each candidate aggregate allocation based on the scores of the corresponding potential allocations, and allocating radio resources to respective served user equipment based on the total scores of the candidate aggregate allocations.

公开(公告)号：US20120238263A1

公开(公告)日：2012-09-20

申请号：US13503985

申请日：2009-10-26

申请人： Marco Caretti ,  Ivano Salvatore Collotta ,  Maurizio Fodrini ,  Paolo Priotti ,  Roberto Rossi

发明人： Marco Caretti ,  Ivano Salvatore Collotta ,  Maurizio Fodrini ,  Paolo Priotti ,  Roberto Rossi

IPC分类号： H04W72/08

CPC分类号： H04W16/10 ,  H04W16/14 ,  H04W72/08

摘要： A radio resource scheduling method for scheduling radio resources used for communications in a radio communication system includes user equipment configured to communicate with transceiver stations on the radio resources. The transceiver stations are configured to exchange coordination messages concerning radio resources affected by intra-system interference. The radio resource scheduling method includes allocating to each user equipment served by a transceiver station a corresponding radio resource and a corresponding transmission power level to communicate with the serving transceiver station. Allocating is based on coordination messages exchanged by the serving transceiver station.

摘要翻译： 一种用于调度无线电通信系统中用于通信的无线电资源的无线电资源调度方法，包括被配置为与无线电资源上的收发信机通信的用户设备。 收发站被配置为交换关于受系统内干扰影响的无线电资源的协调消息。 无线电资源调度方法包括向收发机服务的每个用户设备分配相应的无线电资源和相应的发送功率电平以与服务收发台进行通信。 分配是基于由服务收发台交换的协调消息。