公开(公告)号：US08755359B2

公开(公告)日：2014-06-17

申请号：US13297909

申请日：2011-11-16

申请人： Christian Faber

发明人： Christian Faber

IPC分类号： H04W4/00 ,  H04W52/40 ,  H04B7/06 ,  H04B7/04

CPC分类号： H04W52/40 ,  H04B7/04 ,  H04B7/0617 ,  H04B7/0817

摘要： A system and method for dynamic receive diversity allocation. A communications device comprises a first physical layer (PHY) unit, a second PHY unit, a first signal path coupled to a first antenna and to the first PHY unit, a switchable signal path coupled to a second antenna and switchably coupled to the first PHY unit and the second PHY unit, and a switch control unit coupled to the second antenna. The switch control unit dynamically generates a control signal used to switchably couple the second antenna to either the first PHY unit or the second PHY unit. The second antenna may be used to provided a needed transmit or receive antenna or an extra antenna for use in increasing diversity. Switching antennas reduces the total number of antennas and support hardware, such as digital processing hardware, for wireless communications standards having a high ratio of idle to busy time.

摘要翻译： 一种用于动态接收分集分配的系统和方法。 通信设备包括第一物理层（PHY）单元，第二PHY单元，耦合到第一天线和第一PHY单元的第一信号路径，耦合到第二天线并可切换地耦合到第一PHY的可切换信号路径 单元和第二PHY单元，以及耦合到第二天线的开关控制单元。 开关控制单元动态地产生用于将第二天线切换地耦合到第一PHY单元或第二PHY单元的控制信号。 第二天线可用于提供所需的发射或接收天线或用于增加分集的额外天线。 开关天线减少天线总数，并支持具有高空闲时间与繁忙时间比率的无线通信标准的数字处理硬件，例如数字处理硬件。

公开(公告)号：US20130329822A1

公开(公告)日：2013-12-12

申请号：US13912835

申请日：2013-06-07

申请人： Korea University Research and Business Foundation ,  Samsung Electronics Co. Ltd.

发明人： Chung-Gu KANG ,  Xin QU

IPC分类号： H04B7/08

CPC分类号： H04B7/0817 ,  H04B1/71072 ,  H04B7/0452

摘要： An apparatus and method for interference alignment and cancellation in a wireless communication system of a multi-user communication environment are provided. The apparatus includes a plurality of receivers, each receiver including a plurality of antennas for receiving signals from a plurality of transmitters. Each of the receivers detects signals of multiple users in a designed order and performs a specific interference alignment on the remaining signals. Also, each of the receivers transmits information about the detected user signal to other receivers to enable the other receivers to cancel the received user signal and perform a user signal detection and a specific interference alignment operation. Accordingly, it is possible to present various types of transmitter/receiver structures that can reduce the complexity while implementing the maximum capacity in an interference environment between a multi-user and single-user TX/RX pair.

摘要翻译： 提供了一种用于多用户通信环境的无线通信系统中的干扰对准和消除的装置和方法。 该装置包括多个接收机，每个接收机包括用于从多个发射机接收信号的多个天线。 每个接收机以设计的顺序检测多个用户的信号，并对剩余的信号执行特定的干扰对准。 此外，每个接收机将关于检测到的用户信号的信息发送到其他接收机，以使得其他接收机能够取消所接收的用户信号并执行用户信号检测和特定干扰对准操作。 因此，可以呈现各种类型的发射机/接收机结构，其可以在多用户和单用户TX / RX对之间的干扰环境中实现最大容量的同时降低复杂度。

公开(公告)号：US20130321201A1

公开(公告)日：2013-12-05

申请号：US13486616

申请日：2012-06-01

申请人： John Savoy ,  Sidney Richard Strong ,  Alfonso Malaga ,  Anthony H. Luk

发明人： John Savoy ,  Sidney Richard Strong ,  Alfonso Malaga ,  Anthony H. Luk

IPC分类号： G01S3/02 ,  G01S1/44 ,  G01S5/04 ,  G01S19/47 ,  B64F1/18

CPC分类号： G01S19/25 ,  G01S3/72 ,  G01S19/15 ,  H01Q1/28 ,  H01Q3/24 ,  H04B7/0817 ,  H04B7/0834 ,  H04B7/088

摘要： Systems and methods for the selection of antennas in aircraft navigation systems are provided. In one embodiment, a navigation receiver system for an aircraft comprises: a first aircraft antenna that receives transmitter signals from fixed-location ground transmitters and a second aircraft antenna that receives transmitter signals from the fixed-location ground transmitters, wherein the first aircraft antenna has a first gain pattern that is different from a second gain pattern of the second aircraft antenna; a switch coupled to a first receiver and the first and second aircraft antenna; and a switch controller coupled to the switch. The switch controller operates the switch to electrically couple the first receiver to either the first or second aircraft antenna based on a determination of whether the first gain pattern or the second gain pattern provides higher gain in a direction of a first fixed-location ground transmitter of the fixed-location ground transmitters.

摘要翻译： 提供了用于选择飞行器导航系统中的天线的系统和方法。 在一个实施例中，用于飞行器的导航接收机系统包括：第一飞行器天线，其接收来自固定位置地面发射机的发射机信号;以及第二飞行器天线，其从所述固定位置地面发射机接收发射机信号，其中所述第一飞行器天线具有 与第二飞行器天线的第二增益模式不同的第一增益模式; 耦合到第一接收器和第一和第二飞行器天线的开关; 以及耦合到开关的开关控制器。 开关控制器操作开关以基于确定第一增益模式或第二增益模式是否在第一固定位置地面发射器的方向上提供较高增益来确定第一或第二飞行器天线的电耦合 固定位置地面发射机。

公开(公告)号：US08537771B2

公开(公告)日：2013-09-17

申请号：US12212875

申请日：2008-09-18

申请人： Boris Ginzburg ,  Shmuel Levy

发明人： Boris Ginzburg ,  Shmuel Levy

IPC分类号： H04W4/00

CPC分类号： H04B7/0697 ,  H04B7/0669 ,  H04B7/0817 ,  H04L1/0001 ,  H04L1/04 ,  H04L1/0618 ,  H04L1/203 ,  H04W40/02

摘要： Embodiments of the present invention provide a method for selectively modulating a data frame of a signal using either a frequency-multiplexing modulation method or a spatial-multiplexing modulation method based on a predetermined criterion.

摘要翻译： 本发明的实施例提供了一种使用频率复用调制方法或基于预定标准的空间复用调制方法来选择性地调制信号的数据帧的方法。

公开(公告)号：US20130094554A1

公开(公告)日：2013-04-18

申请号：US13654294

申请日：2012-10-17

申请人： Aviat U.S., Inc.

发明人： Paul A. Kennard

IPC分类号： H04B7/12 ,  H04W88/02

CPC分类号： H04J1/20 ,  H04B7/0613 ,  H04B7/0805 ,  H04B7/0817 ,  H04B7/10 ,  H04J11/0063 ,  H04J2011/0009 ,  H04L27/0002 ,  H04W88/085

摘要： An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The antenna may be configured to receive first and second diversity receive signals. The antenna is further configured to transmit first and second diversity transmit signals. The first signal path may have a frequency converter configured to downconvert the first diversity receive signal to an intermediate frequency and to upconvert the first diversity transmit signal to a radio frequency. The second signal path may have a frequency converter configured to downconvert the second diversity receive signal to an intermediate frequency and to upconvert the second diversity transmit signal to the radio frequency. The N-plexer may be configured to provide the first and second diversity receive signals to a cable and to provide from the cable the first and second diversity transmit signals to the first signal path and the second signal path, respectively.

摘要翻译： 示例性系统包括至少一个天线，第一和第二信号路径以及N-plexer。 天线可以被配置为接收第一和第二分集接收信号。 天线还被配置为发送第一和第二分集发射信号。 第一信号路径可以具有频率转换器，其被配置为将第一分集接收信号下变频到中频，并将第一分集发射信号上变频到射频。 第二信号路径可以具有频率转换器，其被配置为将第二分集接收信号下变频到中频，并将第二分集发射信号上变频到射频。 N-plexer可以被配置为向电缆提供第一和第二分集接收信号，并且从电缆将第一和第二分集发射信号分别提供给第一信号路径和第二信号路径。

公开(公告)号：US20120315851A1

公开(公告)日：2012-12-13

申请号：US13478674

申请日：2012-05-23

申请人： Sung Ryong PARK

发明人： Sung Ryong PARK

IPC分类号： H04W88/02 ,  H04B1/40 ,  H04B7/00

CPC分类号： H04B7/0814 ,  H04B7/0817

摘要： A method and apparatus of switching an antenna in a portable terminal having a plurality of antennas, a plurality of communication modules, and a switch unit for switching a wireless path are provided. The method includes determining whether a received signal strength of at least one communication module is reduced to or below a preset reference value, measuring, when the received signal strength of the at least one communication module is determined to be reduced to or below the preset reference value, respective received signal strengths of the plurality of the antennas with respect to a frequency band supported by the at least one communication module, and controlling the switch unit, based on the measurement result, such that a wireless path is formed between the at least one communication module and an antenna having a greatest received signal strength among the plurality of the antennas.

摘要翻译： 提供了一种在具有多个天线的便携式终端中切换天线的方法和装置，多个通信模块以及用于切换无线路径的切换单元。 该方法包括：确定至少一个通信模块的接收信号强度是否被降低到预设参考值以下，当至少一个通信模块的接收信号强度被确定为降低到或低于预设参考值时， 值，相对于由所述至少一个通信模块支持的频带的所述多个天线的相应接收信号强度，以及基于所述测量结果来控制所述交换单元，使得至少在所述至少一个通信模块之间形成无线路径 一个通信模块和在多个天线中具有最大接收信号强度的天线。

公开(公告)号：US20120310394A1

公开(公告)日：2012-12-06

申请号：US13577959

申请日：2010-02-12

申请人： Amre El-Hoiydi

发明人： Amre El-Hoiydi

IPC分类号： G06F17/00

CPC分类号： H04R25/558 ,  H04B7/0667 ,  H04B7/0817 ,  H04B7/0822 ,  H04R25/554 ,  H04R2225/55

摘要： A system for providing sound to at least one user, having at least one audio signal source for providing audio signals; a transmission unit with a digital transmitter for wirelessly transmitting the audio signals as data packets; at least one receiver unit with at least one digital receiver for reception of the audio signals from the transmission unit; a mechanism for stimulating the hearing of the user(s) according to audio signals supplied from the receiver unit. The transmission unit transmits each data packet in a separate slot of a TDMA frame at a different frequency in a frequency hopping sequence, in at least some of the slots, the audio signals are transmitted as audio data packets, the same audio packet being transmitted at least twice in the same TDMA frame without expecting acknowledgement, and the TDMA frames being structured for unidirectional broadcast transmission of the audio data packets.

摘要翻译： 一种用于向至少一个用户提供声音的系统，具有用于提供音频信号的至少一个音频信号源; 具有数字发送器的发送单元，用于将音频信号无线发送为数据分组; 至少一个具有至少一个数字接收器的接收器单元，用于从所述传输单元接收音频信号; 用于根据从接收器单元提供的音频信号来刺激用户的听觉的机构。 传输单元在跳频序列中以不同频率在TDMA帧的单独时隙中发送每个数据分组，在至少一些时隙中，将音频信号作为音频数据分组传输，相同的音频分组以 在相同TDMA帧中至少两次，而不期望确认，并且TDMA帧被构造用于音频数据分组的单向广播传输。

公开(公告)号：US08325632B2

公开(公告)日：2012-12-04

申请号：US12498905

申请日：2009-07-07

申请人： Oleksandr Gorbachov

发明人： Oleksandr Gorbachov

IPC分类号： H04J3/00 ,  H04B1/38 ,  H04B1/44 ,  H01Q21/00

CPC分类号： H04B7/0602 ,  H04B1/48 ,  H04B7/0817

摘要： A front end circuit for coupling a plurality of antennas to a multi-channel time domain duplex RF transceiver is disclosed. The front end circuit has a first transmit port, a first receive chain primary port, a first receive chain secondary ports, and a first antenna port connectible to a first one of the plurality of antennas. The front end circuit also has a second transmit port, a second receive chain primary port, and a second receive chain secondary port connectible to a second one of the plurality of antennas. A first switch has terminals connected to the first transmit port, the first receive chain primary port, and the second receive chain secondary port, as well as a common terminal that is connected to the first antenna port. Additionally, the front end circuit has a second switch that has terminals connected to the second transmit port, the second receive chain primary port and the first receive chain secondary port, and a common terminal connected to the second antenna port.

摘要翻译： 公开了一种用于将多个天线耦合到多信道时域双工RF收发器的前端电路。 前端电路具有第一发送端口，第一接收链主端口，第一接收链次端口以及可连接到多个天线中的第一天线的第一天线端口。 前端电路还具有可连接到多个天线中的第二个天线的第二发射端口，第二接收链主端口和第二接收链次级端口。 第一开关具有连接到第一发送端口，第一接收链主端口和第二接收链次端口的终端以及连接到第一天线端口的公共终端。 此外，前端电路具有第二开关，其具有连接到第二发送端口，第二接收链主端口和第一接收链次端口的端子，以及连接到第二天线端口的公共端子。

公开(公告)号：US20110176634A1

公开(公告)日：2011-07-21

申请号：US13008685

申请日：2011-01-18

申请人： Sungjun YOON ,  Kibum Kwon

发明人： Sungjun YOON ,  Kibum Kwon

IPC分类号： H04B7/02 ,  H04L27/04 ,  H04L27/06

CPC分类号： H04L5/0057 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0817 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/0082 ,  H04L25/0226 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/0453

摘要： Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted.

摘要翻译： 公开了一种用于信道状态信息参考信号（CSI-RS）分配的装置以及在无线通信系统中使用该装置进行CSI-RS传输的方法。 每个天线端口的CSI-RS基于子帧或资源块（RB）中的符号或符号轴分配给RE或子载波，并且被分配为使得相邻CSI-RS分配RE之间的距离 或者子载波可以是3个RE或子载波。 因此，在随后的CSI-RS传输开销的范围内，以这样的方式将CSI-RS分配给时间 - 频率资源域，以便根据小区或小区组具有完美的正交性或准正交性。 然后，发送已经分配给时间 - 频率资源域的CSI-RS。

公开(公告)号：US20100279702A1

公开(公告)日：2010-11-04

申请号：US12666411

申请日：2008-02-15

申请人： Muhammad Kazmi ,  Kimmo Juhani Hiltunen

发明人： Muhammad Kazmi ,  Kimmo Juhani Hiltunen

IPC分类号： H04W72/08

CPC分类号： H04B7/0817 ,  H04B7/0822 ,  H04B7/0877

摘要： The present invention relates to a method and a UE having a receiver with at least two receiver branches, capable of measuring or estimating a first channel quality of at least one down link channel. The UE comprises means for determining whether a first condition is fulfilled where said first condition is fulfilled when a difference between a measured or estimated first channel quality and a predefined maximum reportable channel quality indicator value is greater than or equal to a first threshold (Ti), and means for switching off at least one receiver branch for the reception of the at least one down link channel provided that the first condition is fulfilled. It also relates to a method and a radio base station comprising means for signaling the first threshold (Ti) to the user equipment.

摘要翻译： 本发明涉及一种具有至少两个接收机分支的接收机的方法和UE，能够测量或估计至少一个下行链路信道的第一信道质量。 UE包括用于当测量或估计的第一信道质量与预定义的最大可报告信道质量指示符值之间的差大于或等于第一阈值（Ti）时确定在满足所述第一条件的情况下是否满足第一条件的装置， 以及用于关闭至少一个接收器分支用于接收所述至少一个下行链路信道的装置，只要满足第一条件即可。 它还涉及一种方法和无线电基站，其包括用于向用户设备发信号通知第一阈值（Ti）的装置。