公开(公告)号：WO2016096001A1

公开(公告)日：2016-06-23

申请号：PCT/EP2014/078326

申请日：2014-12-17

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： JALDÉN, Niklas ,  ASPLUND, Henrik ,  ASTELY, David

IPC: H04B7/06 ,  H04W16/28

CPC classification number: H04B7/0617 ,  H04W16/28

Abstract: There is provided a method for shaping cells in a wireless communications network. The method is performed by a network node. The method comprises acquiring previously stored spatial channel characteristics for wireless devices (WDs), the WDs being associated with a set of radio access network nodes (RANNs), the spatial channel characteristics for at least one WD of the WDs being measured between the at least one WD and at least two RANNs in the set of RANNs. The method comprises determining beam forming parameters for shaping cells for at least one RANN in the set of RANNs based on the acquired spatial channel characteristics and on a change in operation state for at least another RANN in the set of RANNs. The method comprises notifying at least one of the RANNs in the set of RANNs of the determined beam forming parameters. There is also provided a corresponding network node and computer program.

Abstract translation: 提供了一种用于在无线通信网络中整形小区的方法。 该方法由网络节点执行。 该方法包括获取先前存储的无线设备（WD）的空间信道特性，WD与一组无线电接入网络节点（RANN）相关联，所述WD的至少一个WD的空间信道特性在至少 一个WD和一组RANN中至少有两个RANN。 该方法包括基于所获取的空间信道特性以及对于该组RANN中的至少另一个RANN的操作状态的变化来确定用于在所述一组RANN中的至少一个RANN的单元的整形单元的波束形成参数。 该方法包括通知所确定的波束形成参数的一组RANN中的至少一个RANN。 还提供了相应的网络节点和计算机程序。

公开(公告)号：WO2008156389A1

公开(公告)日：2008-12-24

申请号：PCT/SE2007/000612

申请日：2007-06-21

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  ASPLUND, Henrik ,  MEDBO, Jonas ,  RIBACK, Mathias

Inventor： ASPLUND, Henrik ,  MEDBO, Jonas ,  RIBACK, Mathias

IPC: H04B17/00 ,  H04B1/10 ,  H04B7/005

CPC classification number: H04B17/12 ,  H04B7/0613 ,  H04B17/103

Abstract: The present invention relates to a method for adapting transmission parameters in a transmitter T x in communication with at least one antenna 27; 38; 47; 57; 77, 88. The method comprises: transmitting a signal from the transmitter T x measuring at least one reflection coefficient S 11 of said signal for each antenna 27; 38; 47; 57; 77, 88, and adapting the transmission parameters based on the measured reflection coefficient S 11 . The antenna could be a transmit antenna and/ or a receive antenna. In a preferred embodiment antenna calibration may be performed by measuring propagation time for each individual transmitter chain 48 1 , 48 2 ; 78 1 , 78 2 , and compensate for differences in time delay between the individual transmitter chains 48 1 , 48 2 ; 78 1 , 78 2 to assure that the signal is transmitted simultaneously from all transmit antennas.

Abstract translation: 本发明涉及一种适配与至少一个天线27通信的发射机Tx中的传输参数的方法; 38; 47; 57; 该方法包括：从发射机Tx传输测量每个天线27的所述信号的至少一个反射系数S11的信号; 38; 47; 57; 基于所测量的反射系数S11来调整传输参数。 天线可以是发射天线和/或接收天线。 在优选实施例中，天线校准可以通过测量每个单独的发射机链481,482的传播时间来执行; 781,782，并且补偿各个发射机链481,482之间的时间延迟的差异; 781,782以确保信号从所有发射天线同时传输。

公开(公告)号：WO2008003354A1

公开(公告)日：2008-01-10

申请号：PCT/EP2006/063962

申请日：2006-07-06

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  PETERSSON, Sven ,  ASPLUND, Henrik ,  BERG, Jan-Erik ,  FELTER, Stefan ,  JOHANSSON, Martin

Inventor： PETERSSON, Sven ,  ASPLUND, Henrik ,  BERG, Jan-Erik ,  FELTER, Stefan ,  JOHANSSON, Martin

IPC: H04B7/10 ,  H04B7/06

CPC classification number: H04B7/10

Abstract: The invention discloses an apparatus (100) in a wireless telecommunications system, comprising at least a first antenna (110) of a first polarization and a second antenna (120) of a second polarization. The apparatus (100) additionally comprises a receiver (130) and a transmitter (140), and is intended for communication with at least one other device in the wireless telecommunications system. The apparatus (100) is equipped with means (150, 204) for estimating the polarization state of a signal which is received from the one other device, and the apparatus (100) additionally comprises means (160, 206) for adapting the polarization state of signals transmitted from the apparatus (100) to the one other device on the basis of said estimate of the received signal.

Abstract translation: 本发明公开了一种无线电信系统中的装置（100），包括至少第一极化的第一天线（110）和第二极化的第二天线（120）。 装置（100）还包括接收机（130）和发射机（140），并且旨在与无线电信系统中的至少一个其他设备进行通信。 装置（100）配备有用于估计从另一个装置接收的信号的偏振状态的装置（150,204），并且装置（100）另外包括用于调整偏振状态的装置（160,206） 根据接收到的信号的估计从设备（100）发送到另一个设备的信号。