公开(公告)号：EP1298949A1

公开(公告)日：2003-04-02

申请号：EP01402507.6

申请日：2001-09-28

Applicant: MOTOROLA, INC.

Inventor： Vigier, David Alfred ,  Arnaudet, Guillaume Marc ,  Simoens, Sebastien

IPC: H04Q7/38 ,  H04L27/26 ,  H04B1/38

CPC classification number: H04W16/14 ,  H04B1/1027 ,  H04L27/2601 ,  H04W72/08

Abstract: A method of communication between two or more terminals (6, 7) with detection of interference, especially in a HiperLAN/2 system, comprising transmitting data between the terminals (6, 7) in electromagnetic signals of at least a first duration, the electromagnetic signals comprising one or more carrier frequencies within one or more ranges (1, 2) for which extra-system interference, especially with radar signals, is possible, at least one of the terminals (6, 7) being responsive to received signal strengths corresponding to intra-system interference (4, 17, 18). Detection of extra-system interference (5, 16) comprises at least one of the terminals (6, 7) responding selectively to received signal strengths that exceed a threshold level (19) for a second duration that is shorter than the first duration.

Abstract translation: 一种具有检测到干扰的两个或多个终端（6,7）之间的通信方法，特别是在HiperLAN / 2系统中，包括在至少第一持续时间的电磁信号中在终端（6,7）之间传输数据，电磁 包括在一个或多个范围（1,2）内的一个或多个载波频率的信号，对于该系统，尤其是与雷达信号有额外的系统干扰是可能的，所述终端（6,7）中的至少一个响应于所接收的信号强度 到系统内干扰（4,17,18）。 系统外干扰（5,16）的检测包括至少一个终端（6,7）响应于比第一持续时间短的第二持续时间超过阈值水平（19）的接收信号强度。

公开(公告)号：EP1271871A1

公开(公告)日：2003-01-02

申请号：EP01401631.5

申请日：2001-06-20

Applicant: MOTOROLA, INC.

Inventor： Lehning, Heinz ,  Gercekci, Anil ,  Simoens, Sebastien

IPC: H04L27/00

CPC classification number: H04L27/0014 ,  H04L27/00 ,  H04L2027/0016

Abstract: An apparatus for improving signal mismatch compensation between first and second RF signals comprises: at least one switch which applies a first RF signal, present on a first pathway, and a second RF signal, present on a second pathway, to respective first and second frequency mixers, during a first time period; the mixers provide a first pair of mixed first and second RF signals. Means for reversing the at least one switch, during a subsequent time period is provided so that the first RF signal is applied to the second mixer, via the second pathway, and the second RF signal is applied to the first mixer, via the first pathway. The mixers thereby provide a second pair of mixed first and second RF signals. Monitoring monitors respective first and second pairs of mixed RF signals during an interval. The monitoring means provides time averaged values for the first and second signals in each of said first and second pairs of RF signals, so that effects of signal mismatch on the first and second RF signals are minimised in each channel, by subjecting said RF signals in each channel, for substantially the same time, to the same pathways.

Abstract translation: 一种用于改善第一和第二RF信号之间的信号失配补偿的装置包括：至少一个开关，其将存在于第二路径上的第一RF信号和存在于第二路径上的第二RF信号施加到相应的第一和第二频率 混合器，在第一时期; 混合器提供第一对混合的第一和第二RF信号。 提供了用于在随后的时间段期间使所述至少一个开关反转的装置，使得所述第一RF信号经由所述第二路径被施加到所述第二混频器，并且所述第二RF信号经由所述第一通路 。 混合器由此提供第二对混合的第一和第二RF信号。 监视在间隔期间监视相应的第一和第二对混合RF信号。 所述监视装置提供所述第一和第二对RF信号中的每一个中的第一和第二信号的时间平均值，使得在每个信道中的信号失配对第一和第二RF信号的影响最小化， 每个通道，基本上相同的时间，到相同的途径。

公开(公告)号：EP1317107A1

公开(公告)日：2003-06-04

申请号：EP01403082.9

申请日：2001-11-30

Applicant: MOTOROLA, INC.

Inventor： Bateman, David ,  Simoens, Sebastien ,  de Courville, Marc

IPC: H04L27/26 ,  H03G3/20

CPC classification number: H04L25/03159 ,  H04L2025/03414

Abstract: In an orthogonal frequency division multiplex communication system, for example a HIPERLAN/2 system, power amplifiers (224) of mobile terminals (4, 6) are switched off when not in use, and then switched on again when a signal transmission is to be made. This conserves power, but introduces a power amplifier transient (315). An access point (2), i.e. a type of base station, compensates for these power amplifier transients (315) using a simple scalar constant gain transient correction, over a full OFDM symbol (or a plurality of OFDM symbols). The correction is updated on an OFDM symbol by symbol basis (or plurality of symbols by plurality of symbols basis).

Abstract translation: 在正交频分复用通信系统中，例如HIPERLAN / 2系统，移动终端（4,6）的功率放大器（224）在不使用时被关闭，然后当信号传输将被再次接通时 制作。 这节省了功耗，但引入了功率放大器瞬态（315）。 接入点（2），即一种基站，使用简单的标量常数增益瞬态校正，在完整的OFDM符号（或多个OFDM符号）上补偿这些功率放大器瞬变（315）。 在OFDM符号的基础上（或多个符号的多个符号的基础上）更新校正。

公开(公告)号：EP1298949B1

公开(公告)日：2005-03-02

申请号：EP01402507.6

申请日：2001-09-28

Applicant: MOTOROLA, INC.

Inventor： Vigier, David Alfred ,  Arnaudet, Guillaume Marc ,  Simoens, Sebastien

IPC: H04Q7/38 ,  H04L27/26 ,  H04B1/38

CPC classification number: H04W16/14 ,  H04B1/1027 ,  H04L27/2601 ,  H04W72/08