公开(公告)号：US20170019929A1

公开(公告)日：2017-01-19

申请号：US15123682

申请日：2014-08-22

Applicant: ZTE CORPORATION

Inventor： Wenfang WANG ,  Shaopeng WANG ,  Hongfeng QIN

IPC: H04W74/08 ,  H04B1/10

CPC classification number: H04W74/0833 ,  H04B1/1027 ,  H04J11/005 ,  H04L27/2663 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2688 ,  H04L27/2691 ,  H04W74/004

Abstract: A method, device and system for detecting a random access signal in an interference environment. The method includes: receiving a time-domain random access signal to obtain a frequency-domain random access signal; obtaining interference cancelling weights according to the frequency-domain random access signal and a frequency-domain local cyclic shift sequence, and performing interference cancelling on the frequency-domain random access signal with obtained interference cancelling weight; and performing peak detection on the frequency-domain random access signal after interference cancelling. The device includes an obtaining module configured to receive a time-domain random access signal to obtain a frequency-domain random access signal; an interference cancellation module configured to calculate interference cancelling weights according to the frequency-domain random access signal and a frequency-domain local cyclic shift sequence, and perform interference cancelling on the frequency-domain random access signal; and a detection module configured to perform peak detection on the frequency-domain random access signal after interference cancelling.

Abstract translation: 一种用于在干扰环境中检测随机接入信号的方法，装置和系统。 该方法包括：接收时域随机接入信号以获得频域随机接入信号; 根据频域随机接入信号和频域本地循环移位序列获得干扰消除权重，并对获得的干扰消除权重对频域随机接入信号进行干扰消除; 并且在干扰消除之后对频域随机接入信号执行峰值检测。 该装置包括获取模块，被配置为接收时域随机接入信号以获得频域随机接入信号; 干扰消除模块，被配置为根据频域随机接入信号和频域本地循环移位序列计算干扰消除权重，并对频域随机接入信号执行干扰消除; 以及检测模块，被配置为在干扰消除之后对频域随机接入信号执行峰值检测。

公开(公告)号：US20170272130A1

公开(公告)日：2017-09-21

申请号：US15504962

申请日：2014-12-17

Applicant: ZTE Corporation

Inventor： Shaopeng WANG ,  Hongfeng QIN

IPC: H04B7/024 ,  H04B7/06

CPC classification number: H04B7/024 ,  H04B7/0617 ,  H04B7/0634 ,  H04L5/0073 ,  H04W72/082 ,  H04W84/045 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/442 ,  Y02D70/444

Abstract: The disclosure discloses a method and device for forming a multi-cell beam. The method includes: a beam forming vector bq of each coordination cell in a heterogeneous network is calculated according to a principle of maximizing a signal intensity of a coordination cell scheduling user and minimizing a weighted interference leakage of the coordination cell scheduling user to other coordination cell scheduling users; and the beam forming vector bq of corresponding coordination cell is updated according to a calculation result, to enable each coordination cell to transmit data to a corresponding scheduling user according to updated beam forming vector bq.

公开(公告)号：US20170201397A1

公开(公告)日：2017-07-13

申请号：US15319950

申请日：2014-08-27

Applicant: ZTE CORPORATION

Inventor： Wenfang WANG ,  Shaopeng WANG ,  Hongfeng QIN

IPC: H04L25/08 ,  H04L27/26 ,  H04L25/02 ,  H04W74/08

CPC classification number: H04L25/085 ,  H04J11/005 ,  H04L25/022 ,  H04L27/26 ,  H04L27/265 ,  H04L27/2663 ,  H04W74/08 ,  H04W74/0833

Abstract: A method for detecting a random access signal includes: determining a temporary peak detection sequence according to a received time domain random access signal; determining an interference cancellation weight for a frequency domain cyclic shift sequence corresponding to a search window in the temporary peak detection sequence, and performing interference cancellation on the temporary peak detection sequence according to the interference cancellation weight, obtaining a final peak detection sequence; and performing peak detection on the final peak detection sequence. An apparatus and system for detecting a random access signal are also described.