公开(公告)号：EP3375108A1

公开(公告)日：2018-09-19

申请号：EP15908481.3

申请日：2015-12-31

Applicant: Ruckus Wireless, Inc.

Inventor： KHOURY, Peter ,  SANKARAN, Sundar ,  PATEL, Sandip

IPC: H04B7/08 ,  H04B7/26 ,  H04W88/08 ,  H04W84/12

CPC classification number: H04W48/08 ,  H04B7/0811 ,  H04L69/08 ,  H04W72/0446 ,  H04W72/046 ,  H04W84/12

Abstract: A communication technique for conveying configuration information in a preamble in a frame is described. In this communication technique, an access point may receive a frame from a transmitting electronic device in a wireless local area network (WLAN) with media-access-control (MAC) information in a preamble and at least a packet as a payload. The MAC information may be communicated from a MAC layer to a physical layer in an interface circuit in the access point. Moreover, the MAC information may include an identifier of the receiving electronic device. Based on the identifier, the access point may select a receive antenna pattern for use when receiving the payload.

公开(公告)号：EP3029900A4

公开(公告)日：2016-08-31

申请号：EP14839494

申请日：2014-01-07

Applicant: HUAWEI TECH CO LTD

Inventor： HUANG HUI ,  ZHANG PENGCHENG ,  FANG DONGMEI

IPC: H04L25/03 ,  H01Q1/24 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/24 ,  H01Q21/26 ,  H01Q25/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B17/00 ,  H04B17/12 ,  H04L1/00 ,  H04L25/02 ,  H04L27/26 ,  H04W88/08

CPC classification number: H04B7/0469 ,  H01Q1/246 ,  H01Q3/267 ,  H01Q21/24 ,  H04B7/0473 ,  H04B7/0691 ,  H04B7/0811 ,  H04B17/12 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03891 ,  H04L27/2628

Abstract: Embodiments of the present invention provide a communications device, a baseband unit, and a communication method. The device includes: a baseband unit, an intermediate frequency/radio frequency (IF/RF) unit, and dual-columns cross polarization antennas, where the baseband unit is configured to: determine compensation coefficients respectively corresponding to 4 transmit channels; determine a cable compensation phase according to an uplink sounding signal received from a UE; generate 4 channels of baseband signals according to m channels of signals which are in a one-to-one correspondence with m logical ports; and correct the 4 channels of baseband signals according to the compensation coefficients respectively corresponding to the 4 transmit channels and the cable compensation phase, and send the 4 channels of corrected baseband signals to the IF/RF unit; and the IF/RF unit is configured to send the 4 channels of corrected baseband signals to the UE through the 4 transmit channels and the dual-columns cross polarization antennas. In the embodiments of the present invention, a cable compensation phase is determined according to an uplink sounding signal from a UE, and 4 channels of baseband signals are corrected according to compensation coefficients of 4 transmit channels and the cable compensation phase, so that phases of various channels of transmit signals can be controlled accurately.

Abstract translation: 本发明的实施例提供一种通信设备，基带单元和通信方法。 该设备包括：基带单元，中频/射频（IF / RF）单元和双列交叉极化天线，其中基带单元被配置为：确定分别对应于4个发射信道的补偿系数; 根据从UE接收的上行探测信号确定电缆补偿相位; 根据与m个逻辑端口一一对应的m个信道信号产生4个信道的基带信号; 并根据分别对应于4个发射信道和电缆补偿相位的补偿系数校正4个信道的基带信号，并将4个通道的校正后的基带信号发送到IF / RF单元; 并且IF / RF单元被配置为通过4个发送信道和双列交叉极化天线向UE发送4个经校正的基带信号的信道。 在本发明的实施例中，根据来自UE的上行探测信号确定电缆补偿相位，根据4个发送信道和电缆补偿相位的补偿系数来校正4个基带信号的通道， 可以准确控制各种通道的发送信号。

公开(公告)号：EP3029900A1

公开(公告)日：2016-06-08

申请号：EP14839494.3

申请日：2014-01-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： HUANG, Hui ,  ZHANG, Pengcheng ,  FANG, Dongmei

IPC: H04L25/03 ,  H04L1/00 ,  H04B17/00

CPC classification number: H04B17/12 ,  H01Q1/246 ,  H01Q3/267 ,  H01Q21/24 ,  H04B7/0469 ,  H04B7/0473 ,  H04B7/0691 ,  H04B7/0811 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03891

Abstract: Embodiments of the present invention provide a communications device, a baseband unit, and a communication method. The device includes: a baseband unit, an intermediate frequency/radio frequency (IF/RF) unit, and dual-columns cross polarization antennas, where the baseband unit is configured to: determine compensation coefficients respectively corresponding to 4 transmit channels; determine a cable compensation phase according to an uplink sounding signal received from a UE; generate 4 channels of baseband signals according to m channels of signals which are in a one-to-one correspondence with m logical ports; and correct the 4 channels of baseband signals according to the compensation coefficients respectively corresponding to the 4 transmit channels and the cable compensation phase, and send the 4 channels of corrected baseband signals to the IF/RF unit; and the IF/RF unit is configured to send the 4 channels of corrected baseband signals to the UE through the 4 transmit channels and the dual-columns cross polarization antennas. In the embodiments of the present invention, a cable compensation phase is determined according to an uplink sounding signal from a UE, and 4 channels of baseband signals are corrected according to compensation coefficients of 4 transmit channels and the cable compensation phase, so that phases of various channels of transmit signals can be controlled accurately.

Abstract translation: 本发明的实施例提供了一种通信设备，基带单元和通信方法。 该装置包括：基带单元，中频/射频（IF / RF）单元和双列交叉极化天线，其中，基带单元用于：确定分别对应于4个发射通道的补偿系数; 根据从UE接收到的上行探测信号确定电缆补偿阶段; 根据与m个逻辑端口一一对应的m路信号生成4路基带信号; 根据4个发射通道分别对应的补偿系数和电缆补偿相位对4路基带信号进行校正，并将4路校正后的基带信号发送给IF / RF单元; IF / RF单元用于通过4个发射通道和双列交叉极化天线将4路正确的基带信号发送给UE。 在本发明实施例中，根据来自UE的上行探测信号确定电缆补偿阶段，根据4个发射通道的补偿系数和电缆补偿阶段对4路基带信号进行校正， 可以准确地控制各种发送信号的信道。

公开(公告)号：EP2039045B1

公开(公告)日：2012-12-19

申请号：EP06757835.1

申请日：2006-07-12

Applicant: Greenpeak Technologies B.V.

Inventor： VAN DRIEST, Hans ,  VAN PUIJENBROEK, Cornelis, Adrianus, Henricus, M.

IPC: H04L1/06 ,  H04B7/08

CPC classification number: H04L1/06 ,  H04B7/0811

公开(公告)号：EP1997235A4

公开(公告)日：2012-10-31

申请号：EP07757955

申请日：2007-03-06

Applicant: MOTOROLA SOLUTIONS INC

Inventor： BEN-AYUN MOSHE ,  GROSSMAN OVADIA ,  SERFATY SALOMON ,  SHIRAZI GADI

IPC: H04B1/38 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0811 ,  H04B7/0617 ,  H04B7/082 ,  H04B7/0834 ,  H04B7/0871

公开(公告)号：EP2430773A1

公开(公告)日：2012-03-21

申请号：EP10774983.0

申请日：2010-05-07

Applicant: Ricoh Company Ltd.

Inventor： UENO, Mayuko ,  KUBOTA, Syuji

IPC: H04B7/08

CPC classification number: H04B7/0814 ,  H04B7/0811 ,  H04B7/0825 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/444

Abstract: A wireless communication terminal includes an antenna selecting unit that selects, for each packet, an antenna for use in receiving signals from among a plurality of a plurality of antennas; a packet-destination judging unit that judges whether a packet obtained by demodulating a signal received by the receiving antenna selected by the antenna selecting unit is destined for the wireless communication terminal; and a stand-by-antenna determining unit that determines a stand-by antenna for use in receiving a packet to be received next based on a result of selection made by the antenna selecting unit and a result of judgment made by the packet-destination judging unit.

Abstract translation: 一种无线通信终端，包括：天线选择单元，为每个分组选择用于从多个天线中接收信号的天线; 分组目的地判定单元，其判定通过解调由所述天线选择单元选择的所述接收天线接收到的信号而获得的分组是否以所述无线通信终端为目的地; 以及备用天线确定单元，其基于由所述天线选择单元进行的选择结果和由所述分组目的地判断所作出的判断结果来确定用于接收接下来要接收的分组的待机天线 单元。

公开(公告)号：EP2392084A1

公开(公告)日：2011-12-07

申请号：EP10702980.3

申请日：2010-02-01

Applicant: QUALCOMM Incorporated

Inventor： LI, Linbo ,  MANTRAVADI, Ashok

IPC: H04B7/08

CPC classification number: H04B7/0805 ,  H04B7/0811

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for antenna switching diversity comprising: identifying the start of an OFDM symbol period; switching from an original antenna to an alternative antenna; calculating a signal quality metric associated with the original antenna and the alternative antenna; and selecting either the original antenna or the alternative antenna for demodulation of a current OFDM symbol based on the calculated signal quality metric. In one aspect, the antenna switching diversity is based on either symbol rate switching or block rate switching, and a selection of one or the other is made.

公开(公告)号：EP2141827A2

公开(公告)日：2010-01-06

申请号：EP09162543.4

申请日：2009-06-12

Applicant: Sagem Défense Sécurité

Inventor： Brevalle, Christophe

IPC: H04B7/08 ,  H04L7/00

CPC classification number: H04B7/0811

Abstract: La présente invention concerne un terminal mobile d'un système de communication par onde radiofréquence de type DECT, installé sur un support susceptible de se déplacer, ledit terminal étant équipé d'une pluralité d'antennes et comportant des moyens (MES) pour mesurer le niveau de puissance d'un signal reçu par chaque antenne et des moyens (SEL) pour sélectionner l'une de ces antennes comme antenne de réception par comparaison des niveaux de puissance ainsi mesurés, caractérisé en ce que les antennes sont positionnées sur des parties dudit support de manière à ce que chaque zone d'ombre de chaque antenne qui est provoquée par une partie du support est couverte par une autre antenne dudit terminal. De plus, la présente invention concerne un procédé de gestion d'antennes pour l'échange d'un signal de balise ou de trafic d'une communication radiofréquence.

Abstract translation: 该终端具有用于测量由天线接收的信号的功率电平的测量单元。 选择单元通过比较所测量的功率电平，其中，所选择的天线用于发射信号选择所述天线中的一个。 天线被置于份，例如 身体的支撑E.G. 人或车辆，象天线的阴影区被另一个天线覆盖。 因此独立claimsoft包括用于管理一个主终端和从属终端之间建立的信标信号或射频通信业务信号的方法。

公开(公告)号：EP1870958B1

公开(公告)日：2009-10-28

申请号：EP06731497.1

申请日：2006-04-10

Applicant: NEC Corporation

Inventor： NAKAMURA, Shinya, c/o NEC Saitama, Ltd., ,  KOJIMA, Takuya, c/o NEC Saitama, Ltd.,

IPC: H01Q1/24 ,  H04M1/00 ,  H04M1/02 ,  H04W88/02

CPC classification number: H01Q1/243 ,  H04B7/0808 ,  H04B7/0811 ,  H04M1/0214 ,  H04M1/0245

公开(公告)号：EP1689096B1

公开(公告)日：2009-05-27

申请号：EP06010398.3

申请日：1998-06-16

Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

Inventor： Taira, Akinori ,  Ishizu, Fumio ,  Murakami, Keishi

IPC: H04B7/005 ,  H04B7/08 ,  H04W76/00 ,  H04B17/00 ,  H04B7/06 ,  H04L7/04

CPC classification number: H04B7/0811 ,  H03G3/3036 ,  H04B1/1081 ,  H04B7/0608 ,  H04B7/0814 ,  H04B17/318 ,  H04L7/04 ,  H04W52/32 ,  H04W52/40 ,  H04W52/52 ,  H04W52/54

Abstract: In a data transmission system, a transmitter adds control data to transmission data, and modulates the resultant signal by a predetermined modulation method, and sends the result in a wireless manner. A receiver detects a reception power intensity by use of the control data contained in the transmitted signal. The control data includes a reception-power detection portion having a wide spectrum signal whose period is longer than the maximum delay of a delayed wave as prescribed in the channel model of the wireless communication system, said wide spectrum signal being used for detecting reception power intensity.