公开(公告)号：US09237513B2

公开(公告)日：2016-01-12

申请号：US14304781

申请日：2014-06-13

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Yin Yang ,  Jiewei Ding ,  Yuxian Zhang ,  Honglei Zhang ,  Kong Chau Tsang

IPC: H04L1/00 ,  H04W48/16 ,  H04W24/10 ,  G06F17/14 ,  H04W24/02 ,  H04B7/06 ,  H04J11/00

CPC classification number: H04W48/16 ,  G06F17/14 ,  H04B7/0626 ,  H04B7/0842 ,  H04J11/005 ,  H04J11/0069 ,  H04W24/02 ,  H04W24/10

Abstract: A methods for performing a cell search in multiple antenna wireless systems using a plurality of spatial filters is disclosed, and includes applying a plurality of spatial filters to a plurality of received signal streams to generate a plurality of filtered signal streams. The plurality of received signal streams correspond to signals received at a plurality of receive antennas from a plurality of signal sources (e.g., neighboring cells). In an aspect, the plurality of spatial filters may be predefined spatial filters and may be weighted using a set of predefined filter weights. In an additional or alternative aspect, the plurality of spatial filters may be adaptive spatial filters and may be weighted using a set of dynamically determined filter weights. The method includes detecting physical network identities based on the plurality of filtered signal streams.

Abstract translation: 公开了一种使用多个空间滤波器在多个天线无线系统中执行小区搜索的方法，并且包括将多个空间滤波器应用于多个接收信号流以产生多个经滤波的信号流。 多个接收信号流对应于从多个信号源（例如，相邻小区）在多个接收天线处接收的信号。 在一个方面，多个空间滤波器可以是预定义的空间滤波器，并且可以使用一组预定义的滤波器权重进行加权。 在附加或替代方面，多个空间滤波器可以是自适应空间滤波器，并且可以使用一组动态确定的滤波器权重来加权。 该方法包括基于多个经滤波的信号流检测物理网络身份。

公开(公告)号：US20150365882A1

公开(公告)日：2015-12-17

申请号：US14304781

申请日：2014-06-13

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Yin Yang ,  Jiewei Ding ,  Yuxian Zhang ,  Honglei Zhang ,  Kong Chau Tsang

IPC: H04W48/16

CPC classification number: H04W48/16 ,  G06F17/14 ,  H04B7/0626 ,  H04B7/0842 ,  H04J11/005 ,  H04J11/0069 ,  H04W24/02 ,  H04W24/10

Abstract: A methods for performing a cell search in multiple antenna wireless systems using a plurality of spatial filters is disclosed, and includes applying a plurality of spatial filters to a plurality of received signal streams to generate a plurality of filtered signal streams. The plurality of received signal streams correspond to signals received at a plurality of receive antennas from a plurality of signal sources (e.g., neighboring cells). In an aspect, the plurality of spatial filters may be predefined spatial filters and may be weighted using a set of predefined filter weights. In an additional or alternative aspect, the plurality of spatial filters may be adaptive spatial filters and may be weighted using a set of dynamically determined filter weights. The method includes detecting physical network identities based on the plurality of filtered signal streams.

Abstract translation: 公开了一种用于使用多个空间滤波器在多个天线无线系统中执行小区搜索的方法，并且包括将多个空间滤波器应用于多个接收信号流以生成多个经滤波的信号流。 多个接收信号流对应于从多个信号源（例如，相邻小区）在多个接收天线处接收的信号。 在一个方面，多个空间滤波器可以是预定义的空间滤波器，并且可以使用一组预定义的滤波器权重进行加权。 在附加或替代方面，多个空间滤波器可以是自适应空间滤波器，并且可以使用一组动态确定的滤波器权重来加权。 该方法包括基于多个经滤波的信号流检测物理网络身份。

公开(公告)号：US09698836B2

公开(公告)日：2017-07-04

申请号：US14665819

申请日：2015-03-23

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Wen Qin ,  Yuanyuan Du ,  Jiewei Ding ,  Man Wai Kwan ,  Angus Chi Keung Mak ,  Kong Chau Tsang

IPC: H04B1/10 ,  H04B1/04 ,  H04B17/345 ,  H04L5/14

CPC classification number: H04B1/1027 ,  H03F3/24 ,  H04B1/0475 ,  H04B17/345 ,  H04B2001/0408 ,  H04L5/14

Abstract: Systems and methods which provide mitigation of self-interference in spectrally efficient full duplex (e.g., transmit and receive using the same frequency simultaneously) communications are described. Embodiments provide an interference mitigation structure having a multi-tap vector modulator interference cancellation circuit operable to cancel time varying multipath interference in the analog RF domain. A multi-tap vector modulator interference cancellation circuit of embodiments may comprise part of a multi-stage interference cancellation circuit, such as a multi-stage interference cancellation circuit comprising a multi-tap vector modulator interference cancellation circuit and a digital residual interference cancellation circuit. A digital residual interference cancellation circuit of embodiments provides residual interference cancellation. A multi-stage interference cancellation circuit configuration of embodiments is operable to provide cancellation of strong multipath signals as well as cancellation of residual multipath signals, including interference in the received signal associated with circulator leakage, antenna reflection and multipath.

公开(公告)号：US20160285486A1

公开(公告)日：2016-09-29

申请号：US14665819

申请日：2015-03-23

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Wen Qin ,  Yuanyuan Du ,  Jiewei Ding ,  Man Wai Kwan ,  Angus Chi Keung Mak ,  Kong Chau Tsang

IPC: H04B1/10 ,  H04B17/345 ,  H04L5/14 ,  H04B1/04

CPC classification number: H04B1/1027 ,  H03F3/24 ,  H04B1/0475 ,  H04B17/345 ,  H04B2001/0408 ,  H04L5/14

Abstract: Systems and methods which provide mitigation of self-interference in spectrally efficient full duplex (e.g., transmit and receive using the same frequency simultaneously) communications are described. Embodiments provide an interference mitigation structure having a multi-tap vector modulator interference cancellation circuit operable to cancel time varying multipath interference in the analog RF domain. A multi-tap vector modulator interference cancellation circuit of embodiments may comprise part of a multi-stage interference cancellation circuit, such as a multi-stage interference cancellation circuit comprising a multi-tap vector modulator interference cancellation circuit and a digital residual interference cancellation circuit. A digital residual interference cancellation circuit of embodiments provides residual interference cancellation. A multi-stage interference cancellation circuit configuration of embodiments is operable to provide cancellation of strong multipath signals as well as cancellation of residual multipath signals, including interference in the received signal associated with circulator leakage, antenna reflection and multipath.

Abstract translation: 描述了在频谱上有效的全双工（例如，同时使用相同频率进行发送和接收）通信中减轻自干扰的系统和方法。 实施例提供了具有多抽头矢量调制器干扰消除电路的干扰减轻结构，其可用于消除模拟RF域中的时变多径干扰。 实施例的多抽头矢量调制器干扰消除电路可以包括多级干扰消除电路的一部分，例如包括多抽头矢量调制器干扰消除电路和数字残留干扰消除电路的多级干扰消除电路。 实施例的数字残留干扰消除电路提供残余干扰消除。 实施例的多级干扰消除电路配置可操作以提供强多径信号的消除以及残留多径信号的消除，包括与循环器泄漏，天线反射和多路径相关联的接收信号中的干扰。