公开(公告)号：WO2016180465A1

公开(公告)日：2016-11-17

申请号：PCT/EP2015/060348

申请日：2015-05-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HELLGREN, Filip ,  GÄVERT, Björn

IPC: H04W52/34 ,  H04W52/38 ,  H04W52/26 ,  H04W52/28

CPC classification number: H04L1/0009 ,  H03F3/24 ,  H04B1/40 ,  H04B2001/0408 ,  H04B2001/0416 ,  H04L1/0003 ,  H04L1/0026 ,  H04L27/0008 ,  H04W52/262 ,  H04W52/281 ,  H04W52/343 ,  H04W52/383

Abstract: A microwave transceiver comprising a data buffer, an ACM module, a PA, and an antenna. The ACM module configured to receive buffered data from the data buffer and to modulate the buffered data at a modulation format having a spectral efficiency, the PA configured to receive modulated buffered data from the ACM module, and to transmit amplified modulated buffered data, via the antenna, to a remote microwave transceiver at an output power. The modulation format is selected from a plurality of modulation formats based on a feedback signal from the remote microwave transceiver. The microwave transceiver further comprising a control module configured to monitor a buffer state of the data buffer, and to control the output power of the PA based on the buffer state.

Abstract translation: 一种包括数据缓冲器，ACM模块，PA和天线的微波收发器。 ACM模块被配置为从数据缓冲器接收缓冲的数据，并且以具有频谱效率的调制格式来调制缓冲的数据，PA被配置为从ACM模块接收调制的缓冲数据，并且经由 天线，以输出功率连接到远程微波收发器。 基于来自远程微波收发器的反馈信号，从多种调制格式中选择调制格式。 所述微波收发器还包括被配置为监视所述数据缓冲器的缓冲器状态的控制模块，以及基于所述缓冲器状态来控制所述PA的输出功率。

公开(公告)号：WO2016173655A1

公开(公告)日：2016-11-03

申请号：PCT/EP2015/059434

申请日：2015-04-29

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： HELLGREN, Filip ,  GÄVERT, Björn

IPC: H04L12/801 ,  H04W76/04 ,  H04B7/15 ,  H04L1/00

CPC classification number: H04W76/25 ,  H04L1/0003 ,  H04L1/0009 ,  H04L27/20 ,  H04L47/14 ,  H04L2001/0097 ,  H04W24/04 ,  H04W24/08 ,  H04W84/045 ,  H04W92/20 ,  Y02D50/10

Abstract: The present disclosure relates to methods and arrangements for controlling point-to-point microwave transmission on a microwave link between a first and a second microwave network node, wherein the microwave link is configured for payload data transmission at a payload data rate. The method comprises obtaining (S41) information indicative of a current data rate capability of the microwave link and comparing (S43) the current data rate capability to the configured payload data rate. When the current data rate capability is below the configured payload data rate, transmission on the microwave link is adapted (S47) to comprise transmission of dummy data on the microwave link between the first and second microwave network node.

Abstract translation: 本公开涉及用于控制第一和第二微波网络节点之间的微波链路上的点对点微波传输的方法和装置，其中微波链路被配置为以有效载荷数据速率进行有效载荷数据传输。 该方法包括：获得指示微波链路的当前数据速率能力的信息（S41），并将当前数据速率能力（S43）与配置的有效载荷数据速率进行比较。 当当前数据速率能力低于配置的有效载荷数据速率时，微波链路上的传输被适配（S47），以包括在第一和第二微波网络节点之间的微波链路上传输虚拟数据。

公开(公告)号：WO2020169196A1

公开(公告)日：2020-08-27

申请号：PCT/EP2019/054238

申请日：2019-02-20

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： GÄVERT, Björn ,  ERIKSSON, Thomas ,  LEIDENHED, Andreas ,  HELLGREN, Filip

IPC: H04B1/10 ,  H04L25/03

Abstract: A method for reducing distortion in a wireless system, the method comprising; obtaining a distorted signal ( s dist ) comprising at least one dominating signal component (110), where each dominating signal component is comprised in a respective frequency band (115), generating a distortion compensated signal ( s comp ) by minimizing a difference between the distorted signal and an estimated reference signal ( ŝ ), and generating the estimated reference signal ( ŝ ) by filtering the compensated signal by a filter having a filter parameter that determines a frequency response of the filter, wherein the filter parameter is configured such that the filter amplifies signals in the at least one frequency band compared to signals outside of the at least one frequency band.

公开(公告)号：WO2018177562A1

公开(公告)日：2018-10-04

申请号：PCT/EP2017/057794

申请日：2017-04-01

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： BAO, Lei ,  SHAHSAVARI, Sima ,  HANSRYD, Jonas ,  HELLGREN, Filip

IPC: H04B7/06

CPC classification number: H04B7/0623 ,  H04B17/318 ,  H04W52/243 ,  H04W52/245 ,  H04W52/42

Abstract: Methods and arrangements for adaptive power control are provided. A MIMO system, comprises at least two spatial receiver antennas (21-1, 21-2,.., 21-M) and at least two spatial transmitter antennas (11-1, 11-2,.., 11-N). A processor units determines whether first signal quality parameter associated with a first receiver antenna is below a first threshold criteria (Thr_C/l_l); and in response to it measures a second parameter or attempts to decrease a transmission power of a transmitter associated with a second receiver antenna. The processor unit may also increase the transmission power of the transmitter associated with the first receiver.