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公开(公告)号：US09451640B2
公开(公告)日：2016-09-20
申请号：US14358758
申请日：2013-07-22
Applicant: ZTE CORPORATION
Inventor： Lei Li , Xue Wang , Bin Li , Hongfeng Qin , Xiaoxiao Liu
CPC classification number: H04W74/0833 , H04L27/2666 , H04W74/002
Abstract: A method for acquiring a format of a random access subframe and a receiver are provided. The method includes: according to a cell radius supported currently and a cell coverage radius decided by the length of ZC sequence and the size of Ncs, a receiver determining the length of preamble sequence in an extended random access subframe; according to the cell radius supported currently and a cell coverage radius decided by the length of GT, determining the lengths of CP and GT in the extended random access subframe; according to sampling rates of a system where the receiver is located and the lengths of the preamble sequence and CP and GT, respectively calculating the numbers of sampling points of preamble sequence and GT and CP; based on the above numbers of sampling points, calculating the length of extended random access subframe, and determining the format of extended random access subframe.
Abstract translation: 提供了一种用于获取随机接入子帧和接收机的格式的方法。 该方法包括：根据当前支持的小区半径和由ZC序列的长度和Ncs的大小决定的小区覆盖半径，接收者确定扩展随机接入子帧中的前导序列的长度; 根据当前支持的小区半径和由GT长度确定的小区覆盖半径，确定扩展随机接入子帧中CP和GT的长度; 根据接收机所在系统的采样率和前导码序列的长度以及分别计算前导码序列和GT和CP的采样点数的CP和GT的长度; 基于以上数量的采样点，计算扩展随机接入子帧的长度，并确定扩展随机接入子帧的格式。
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2.发明授权公开(公告)号：US09231788B2
公开(公告)日：2016-01-05
申请号：US14421783
申请日：2013-08-16
Applicant: ZTE CORPORATION
Inventor： Gaocai Xiong , Hongfeng Qin , Yue Xiao , Hongzhi Zhao
CPC classification number: H04L25/025 , H04B7/0413 , H04L5/005 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/0228 , H04L25/0242 , H04L25/0256 , H04L27/265
Abstract: Disclosed are a method and device for estimating a channel in a multiple-receiving antenna system. The method comprises: a channel estimation is performed on a received pilot signal by using a least square channel estimation algorithm to obtain an estimation value HLS; an N′-dimensional channel autocorrelation matrix formula (I) and a channel frequency domain autocorrelation matrix Ri from a transmitting antenna i to any receiving antenna are acquired, and a weight matrix W which is descrambled and denoised is calculated, wherein i=1, 2, . . . , NT, and NT is the number of antennae at a transmitting end; the estimation value HLS is corrected by using the weight matrix W to obtain a corrected estimation value HP-LMMSE. The method and device of the disclosure may obtain the performance as close as possible to the LMMSE technology through less prior statistic information, and have a simple implementation manner.
Abstract translation: 公开了一种用于估计多接收天线系统中的信道的方法和装置。 该方法包括：通过使用最小二乘信道估计算法对接收到的导频信号执行信道估计，以获得估计值HLS; 获取N'维信道自相关矩阵公式（I）和从发射天线i到任何接收天线的信道频域自相关矩阵Ri，并且计算被解扰和去噪的权重矩阵W，其中i = 1， 2，。 。 。 NT和NT是发送端的天线数; 通过使用权重矩阵W来校正估计值HLS，以获得校正估计值HP-LMMSE。 本公开的方法和装置可以通过较少的现有统计信息获得尽可能接近LMMSE技术的性能，并且具有简单的实现方式。
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3.发明申请公开(公告)号：US20170295537A1
公开(公告)日：2017-10-12
申请号：US15513764
申请日：2015-03-18
Applicant: ZTE Corporation
Inventor： Shaopeng Wang , Hongfeng Qin
CPC classification number: H04W48/16 , H04W36/0005 , H04W36/08 , H04W48/20 , H04W72/0453 , Y02D70/00 , Y02D70/1222 , Y02D70/1262
Abstract: A method and device for selecting a heterogeneous network serving cell based on inter-cell cooperation, which relate to the field of digital communications. The method disclosed in the embodiments of the present invention comprises: acquiring, by a central node base station in a heterogeneous network, alternative users in each cell in the heterogeneous network; and according to a pre-set alternative user selection criterion, selecting an alternative user in the entire network from the alternative users in all cells in the heterogeneous network; and if the alternative user in the entire network needs to conduct a reselection operation, initiating a cell reselection flow. Also disclosed is a device for selecting a heterogeneous network serving cell based on inter-cell cooperation corresponding to the method.
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4.发明申请RANDOM ACCESS METHOD AND RANDOM ACCESS SYSTEM FOR TERMINAL IN HIGH-SPEED MOBILE ENVIRONMENT 有权高速移动环境终端的随机接入方法和随机接入系统公开(公告)号：US20150163829A1
公开(公告)日：2015-06-11
申请号：US14350378
申请日：2013-08-07
Applicant: ZTE Corporation
Inventor： Lei Li , Xiaoxiao Liu , Bin Li , Hongfeng Qin , Xue Wang
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04W88/08
Abstract: A random access method and random access system for a terminal in a high-speed mobile environment are provided. Wherein, the method comprises: selecting a random access preamble format according to a preset cell coverage radius target value; judging whether using a restricted set of cyclic shift quantities pre-configured satisfies a requirement of the cell coverage radius target value under the selected random access preamble format; if not satisfying, selecting a cyclic shift quantity which satisfies the requirement of the cell coverage radius target value from a unrestricted set of the cyclic shift quantities pre-configured; and generating a random access signal according to the cyclic shift quantity and a pre-configured mother code, and performing access using the random access signal. Through the above-mentioned technical scheme, the embodiment of the present document provides a more perfect random access method and random access system for a terminal in a high-speed mobile environment.
Abstract translation: 提供了一种用于高速移动环境中的终端的随机接入方法和随机接入系统。 其中，该方法包括：根据预设的小区覆盖半径目标值选择随机接入前导码格式; 判断是否使用预先配置的限制循环移位量集合满足所选择的随机接入前同步码格式下的小区覆盖半径目标值的要求; 如果不满足，则从预先配置的循环移位量的不受限制的集合中选择满足小区覆盖半径目标值的要求的循环移位量; 以及根据所述循环移位量和预配置的母码生成随机接入信号，并使用所述随机接入信号进行接入。 通过上述技术方案，本文的实施例为高速移动环境中的终端提供了更完美的随机接入方法和随机接入系统。
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5.发明授权公开(公告)号：US10015730B2
公开(公告)日：2018-07-03
申请号：US15513764
申请日：2015-03-18
Applicant: ZTE Corporation
Inventor： Shaopeng Wang , Hongfeng Qin
CPC classification number: H04W48/16 , H04W36/0005 , H04W36/08 , H04W48/20 , H04W72/0453 , Y02D70/00 , Y02D70/1262
Abstract: A method and device for selecting a heterogeneous network serving cell based on inter-cell cooperation, which relate to the field of digital communications. The method disclosed in the embodiments of the present invention comprises: acquiring, by a central node base station in a heterogeneous network, alternative users in each cell in the heterogeneous network; and according to a pre-set alternative user selection criterion, selecting an alternative user in the entire network from the alternative users in all cells in the heterogeneous network; and if the alternative user in the entire network needs to conduct a reselection operation, initiating a cell reselection flow. Also disclosed is a device for selecting a heterogeneous network serving cell based on inter-cell cooperation corresponding to the method.
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Patent Agency Ranking
公开(公告)号：US20170230219A1
公开(公告)日：2017-08-10
申请号：US15519311
申请日：2015-05-15
Applicant: ZTE Corporation
Inventor： Hongfeng Qin , Gaocai Xiong , Dengsheng Lin
IPC: H04L27/26 , H04W72/04 , H04B7/0456
CPC classification number: H04L27/2613 , H04B7/0456 , H04L25/022 , H04L25/0224 , H04L25/0248 , H04L25/03993 , H04L27/2607 , H04L27/2628 , H04L27/265 , H04W72/0413 , H04W84/042
Abstract: A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in a received signal of each antenna, and then, calculating a channel gain hl,k of each receiving antenna; combining the baseband signals and the channel gains of the M receiving antennas to obtain a signal matrix Yk and a gain matrix Hk; calculating an interference noise covariance matrix Rk on each subcarrier; conducting interference pre-processing on a received signal on each combined subcarrier to obtain the received signal (1) and the channel gain (2) after the interference pre-processing, where D=Rk−1/2; and according to (3), conducting frequency-domain balancing on the received signal after the interference pre-processing.
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公开(公告)号：US20150358913A1
公开(公告)日：2015-12-10
申请号：US14759275
申请日：2013-08-30
Applicant: ZTE CORPORATION
Inventor： Hanqing Xu , Yajun Zhao , Linmei Mo , Chen Huang , Yujie Li , Baoyu Sun , Guofeng Chen , Hongfeng Qin
CPC classification number: H04W52/143 , H04L5/0035 , H04L27/2601 , H04W52/04 , H04W52/40 , H04W72/042 , H04W88/02 , H04W88/08
Abstract: A method and apparatus for configuring downlink power parameters are disclosed. The method includes: a base station configuring downlink power parameters for both a primary cell and a coordinated cell of a terminal in a Coordinated Multi-Point (CoMP) set in which the terminal is located; and the base station notifying the terminal of the downlink power parameters.
Abstract translation: 公开了一种用于配置下行链路功率参数的方法和装置。 该方法包括：基站在终端所在的协调多点（CoMP）集合中为终端的主小区和协作小区配置下行链路功率参数; 以及基站向终端通知下行链路功率参数。
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8.发明授权Processing method and device for performing space-time decoding on MIMO signal 有权用于对MIMO信号执行空时解码的处理方法和装置公开(公告)号：US09172450B2
公开(公告)日：2015-10-27
申请号：US14406021
申请日：2013-08-20
Applicant: ZTE CORPORATION
Inventor： Hongfeng Qin , Gaocai Xiong , Yue Xiao , Hongzhi Zhao
CPC classification number: H04B7/0478 , H04B7/0473 , H04L1/0631 , H04L25/03242 , H04L25/03318 , H04L25/03891 , H04L2025/0342
Abstract: Provided is a processing method and apparatus for performing space-time decoding on MIMO signals. The method includes: performing QR decomposition on a channel matrix H with a size of Nr×Nt in a MIMO system and performing an initialization operation, wherein Nt is the number of transmitting antennas and Nr is the number of receiving antennas; enumerating candidate constellation points of transmitting signals at each level of transmitting antennas according to an input parameter M=[M1, M2, . . . , MNt], a receiving signal y and a result of QR decomposition of H, wherein M is the number of the numerated candidate constellation points at each level, y=Hs+n; calculating increments of a Euclid distance due to addition of selection of a candidate constellation point at present level according to obtained candidate constellation points; and deciding and outputting space-time decoding according to the sum of calculated increments of Euclid distances of candidate constellation points at all levels.
Abstract translation: 提供了一种用于对MIMO信号执行空时解码的处理方法和装置。 该方法包括：在MIMO系统中对Nr×Nt大小的信道矩阵H执行QR分解，并执行初始化操作，其中Nt是发射天线的数量，Nr是接收天线的数量; 根据输入参数M = [M1，M2，...]来枚举在发射天线的每个等级的发射信号的候选星座点。 。 。 ，MNt]，接收信号y和H的QR分解结果，其中M是每个级别的所计算的候选星座点的数量，y = Hs + n; 计算由于根据获得的候选星座点添加当前级别的候选星座点的选择而导致的欧几里德距离的增量; 并根据所有级别的候选星座点的欧几里德距离的计算增量的总和来确定和输出空时解码。
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公开(公告)号：US10164690B2
公开(公告)日：2018-12-25
申请号：US15504962
申请日：2014-12-17
Applicant: ZTE Corporation
Inventor： Shaopeng Wang , Hongfeng Qin
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.
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公开(公告)号：US10129063B2
公开(公告)日：2018-11-13
申请号：US15519311
申请日：2015-05-15
Applicant: ZTE Corporation
Inventor： Hongfeng Qin , Gaocai Xiong , Dengsheng Lin
IPC: H04L27/26 , H04B7/0456 , H04W72/04 , H04W84/04
Abstract: A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in a received signal of each antenna, and then, calculating a channel gain hl,k of each receiving antenna; combining the baseband signals and the channel gains of the M receiving antennas to obtain a signal matrix Yk and a gain matrix Hk; calculating an interference noise covariance matrix Rk on each subcarrier; conducting interference pre-processing on a received signal on each combined subcarrier to obtain the received signal (1) and the channel gain (2) after the interference pre-processing, where D=Rk−1/2; and according to (3), conducting frequency-domain balancing on the received signal after the interference pre-processing.
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