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1. 发明授权

US09980314B2 Method and apparatus for irregular signal transmission in a system with reception gaps 有权
公开(公告)号：US09980314B2
公开(公告)日：2018-05-22
申请号：US15024338
申请日：2014-09-16
申请人： ZTE Wistron Telecom AB , ZTE (TX) INC.
发明人： Patrick Svedman , Yonghong Gao , Aijun Cao , Thorsten Schier , Bojidar Hadjiski , Jan Johansson
IPC分类号： H04W76/00 , H04W76/04 , H04W68/00 , H04W8/00
CPC分类号： H04W76/28 , H04W8/005 , H04W68/005
摘要： The proposed approach contemplates systems and methods configured to transmit signals irregularly (sparsely) over a mobile communication network (carrier) in which reception gaps apply while increasing the likelihood that receivers will receive a signal at least once during a certain time period, called irregular signal period. First, a set of transmission offsets is selected, the transmission offsets defining a relative transmission time in a burst, such that if a burst would be transmitted using the selected transmission offsets, a receiver with any valid reception gap configuration would receive at least one signal in its whole duration. Then, during an irregular signal period, signals are transmitted in a sequence of one or more consecutive bursts using each of the transmission offsets in the selected set at least once, wherein the sequence of bursts may be preceded and/or followed by a period of no signal transmission. Finally, a receiver receives at least one of the irregular signals in its whole duration during one of the reception gaps of the receiver.

2. 发明授权

US09967809B2 Method and apparatus for modified reference signal transmission for cell discovery 有权
公开(公告)号：US09967809B2
公开(公告)日：2018-05-08
申请号：US15024337
申请日：2014-09-11
申请人： ZTE Wistron Telecom AB , ZTE (TX) INC.
发明人： Thorsten Schier , Patrick Svedman , Aijun Cao , Yonghong Gao , Jan Johansson , Bojidar Hadjiski
IPC分类号： H04W48/16 , H04W48/12 , H04L5/00
CPC分类号： H04W48/16 , H04L5/0048 , H04W48/12
摘要： The proposed approach contemplates systems and methods configured to utilize a modified reference signal to facilitate efficient discovery of as many cells as possible within one channel state information reference signal (CSI-RS) sub-frame while maintaining certain detection and measurement performance. The proposed approach is configured to unambiguously discover at least the number of anticipated small cells within one cluster and to further identify all small cells within the coverage area of a base station/macro cell. In some embodiments, frequency multiplexing is utilized to allow different cells to transmit their discovery signals on different physical resource blocks (PRBs) rather than one cell using every PRB over the entire system bandwidth.

3. 发明授权

US09603026B2 Dynamic transmission antenna reconfiguration in wireless networks 有权
公开(公告)号：US09603026B2
公开(公告)日：2017-03-21
申请号：US14433158
申请日：2013-10-03
申请人： ZTE Wistron Telecom AB
发明人： Patrick Svedman
IPC分类号： H04Q7/10 , H04W16/14 , H04B7/06 , H04B7/08 , H04W48/12 , H04B7/04 , H04W16/32 , H04W72/04 , H04W48/10 , H04W48/20 , H04W84/04 , H04L5/00
CPC分类号： H04W16/14 , H04B7/04 , H04B7/0691 , H04B7/0874 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04W16/32 , H04W48/10 , H04W48/12 , H04W48/20 , H04W72/042 , H04W72/0453 , H04W84/045
摘要： A wireless communication technique includes configuring a first antenna group to transmit common system information, a common reference signal, and data according to a first format and a second format to wireless devices in a cell, configuring a second antenna group to transmit data according to the second format, but no common system information or common reference signals, to wireless devices in the cell and dynamically assigning, based on a network operational status, antennas from a plurality of antennas to either the first antenna group or the second antenna group.

4. 发明授权

US09363063B2 Processing uplink data transmissions in a heterogeneous wireless network 有权
标题翻译：处理异构无线网络中的上行链路数据传输
公开(公告)号：US09363063B2
公开(公告)日：2016-06-07
申请号：US14069243
申请日：2013-10-31
申请人： ZTE Corporation , ZTE Wistron Telecom AB
发明人： Nan Li , Thorsten Schier , Patrick Svedman , Yonghong Gao , Aijun Cao , Jan Johansson , Bojidar Hadjiski
IPC分类号： H04W4/00 , H04L5/00
CPC分类号： H04L5/0055 , H04L5/0073
摘要： In a heterogeneous wireless network that includes a macro base station and one or more micro base stations, a wireless device to wirelessly transmit, in a first time slot at a first position in a first transmission subframe, data over a first physical communication channel. An ACK/NACK control message is received over a backhaul network connection a first time period after the first time slot. A response message is transmitted to the wireless device such that when the control message is received prior to the second time slot, then the response message uses data reception information from the control message and when the control message is not received prior to the second time slot, then the response message indicates that the data was successfully received.
摘要翻译：在包括宏基站和一个或多个微基站的异构无线网络中，无线设备在第一传输子帧中的第一位置的第一时隙中通过第一物理通信信道无线地传输数据。在第一时隙之后的第一时间段内通过回程网络连接接收ACK / NACK控制消息。响应消息被发送到无线设备，使得当在第二时隙之前接收到控制消息时，响应消息使用来自控制消息的数据接收信息，并且当在第二时隙之前没有接收到控制消息时，则响应消息指示数据被成功接收。

5. 发明授权

US09203526B2 Method and system for improved interference cancellation by path selection 有权
标题翻译：通过路径选择改善干扰消除的方法和系统
公开(公告)号：US09203526B2
公开(公告)日：2015-12-01
申请号：US13703235
申请日：2010-09-16
申请人： Hans Grubeck
发明人： Hans Grubeck
IPC分类号： H04B15/00 , H04B1/7107
CPC分类号： H04B15/00 , H04B1/7107
摘要： The present invention discloses method and system for improving performance of interference cancellation in a radio communication system. The method comprises: estimating power of an interfering signal contained in a received signal; estimating power of an additive estimate error signal added to the interfering signal; and canceling the interfering signal from the received signal if the estimated power of the additive estimate error signal is lower than the estimated power of the interfering signal. A cellular mobile terminal and a cellular base station comprising the system are also disclosed.
摘要翻译：本发明公开了一种在无线通信系统中提高干扰消除性能的方法和系统。该方法包括：估计包含在接收信号中的干扰信号的功率; 估计添加到干扰信号的加法估计误差信号的功率; 以及如果所述加法估计误差信号的估计功率低于所述干扰信号的估计功率，则从所述接收信号中消除所述干扰信号。还公开了一种蜂窝移动终端和包括该系统的蜂窝基站。

6. 发明申请

US20150319678A1 METHOD AND APPARATUS FOR ANTI-BLOCKING HETNET DEPLOYMENT 审中-公开
标题翻译：用于防止HETNET部署的方法和装置
公开(公告)号：US20150319678A1
公开(公告)日：2015-11-05
申请号：US14651615
申请日：2013-12-11
申请人： ZTE WISTRON TELECOM AB , ZTE (TX) INC.
发明人： Jan JOHANSSON , Aijun CAO , Patrick SVEDMAN , Thorsten SCHIER , Yonghong GAO , Bojidar HADJISKI
IPC分类号： H04W48/16 , H04L1/00 , H04W36/04 , H04W74/00
CPC分类号： H04W48/16 , H04B1/109 , H04L1/0057 , H04W36/04 , H04W74/002 , H04W88/02 , H04W88/08
摘要： A new approach to anti-blocking cellularcommunication for HetNet deployment is proposed. First, a block detector sends a block indicator from an LPN to a scheduler in a macro base station. The scheduler then collects the block indicator statistics of each LPN on a sub-frame basis and updates the statistics in each sub-frame. If the statistics of received block indicators for one sub-frame during an observation period of a specific LPN exceeds a first predefined threshold, then the scheduler will not schedule any more uplink transmission to the LPN during the sub-frame for those UEs which are connected to the LPN. When the statistics of received block indicators becomes less than a second predefined threshold, which is less than the first threshold, the scheduler removes the limitation on uplink transmission to the LPN and allocates the sub-frame of the LPN as usual.
摘要翻译：提出了一种用于HetNet部署的防止蜂窝通信的新方法。首先，块检测器将块指示符从LPN发送到宏基站中的调度器。然后，调度器在子帧的基础上收集每个LPN的块指示符统计，并更新每个子帧中的统计。如果在特定LPN的观察期间的一个子帧的接收块指示符的统计信息超过第一预定义阈值，那么在连接的那些UE的子帧期间，调度器将不会调度对LPN的更多上行链路传输到LPN。当接收到的块指示符的统计信息变得小于小于第一阈值的第二预定义阈值时，调度器消除对LPN的上行链路传输的限制，并像往常一样分配LPN的子帧。

7. 发明申请

US20150281973A1 DYNAMIC TRANSMISSION ANTENNA RECONFIGURATION IN WIRELESS NETWORKS 有权
标题翻译：无线网络中动态传输天线重新配置
公开(公告)号：US20150281973A1
公开(公告)日：2015-10-01
申请号：US14433158
申请日：2013-10-03
申请人： ZTE WISTRON TELECOM AB
发明人： Patrick Svedman
IPC分类号： H04W16/14 , H04B7/04 , H04W72/04 , H04L5/00 , H04W16/32
CPC分类号： H04W16/14 , H04B7/04 , H04B7/0691 , H04B7/0874 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04W16/32 , H04W48/10 , H04W48/12 , H04W48/20 , H04W72/042 , H04W72/0453 , H04W84/045
摘要： A wireless communication technique includes configuring a first antenna group to transmit common system information, a common reference signal, and data according to a first format and a second format to wireless devices in a cell, configuring a second antenna group to transmit data according to the second format, but no common system information or common reference signals, to wireless devices in the cell and dynamically assigning, based on a network operational status, antennas from a plurality of antennas to either the first antenna group or the second antenna group.
摘要翻译：一种无线通信技术包括：将第一天线组配置为根据第一格式和第二格式将公共系统信息，公共参考信号和数据传送到小区中的无线设备，配置第二天线组以根据第二格式，但是没有公共系统信息或公共参考信号给小区中的无线设备，并且基于网络操作状态来动态地分配从多个天线到第一天线组或第二天线组的天线。

8. 发明申请

US20120170630A1 CHANNEL ESTIMATION FILTERING 有权
标题翻译：频道估计滤波
公开(公告)号：US20120170630A1
公开(公告)日：2012-07-05
申请号：US13339341
申请日：2011-12-28
申请人： James Peroulas , Patrick Svedman
发明人： James Peroulas , Patrick Svedman
IPC分类号： H04L27/28 , H04W24/02 , H04B1/10
CPC分类号： H04L25/0232 , H04L25/0212 , H04L25/022 , H04L27/2647
摘要： The disclosed methods and systems for improved OFDM channel estimation filtering take advantage of the presence of highly correlated adjacent subcarriers to reduce the computational intensiveness of channel estimation filtering. Specifically, baseband signals corresponding to a channel are received. The cyclic prefixes of the baseband signals are removed, and the resulting signal is transformed into the frequency domain, and compensated by a first time offset of the baseband receive signal. Subcarrier signals used to transmit the baseband signal are then extracted. Adjacent subcarriers having channel responses highly correlated to the subcarriers of the channel are identified, and the signal is compensated by a second time offset that corresponds to a minimal angle of the autocorrelation function of the subcarrier and adjacent subcarriers. The resulting signal is filtered to produce filtered channel estimates, using a filter having a filter length corresponding to the number of highly correlated subcarriers that were identified.
摘要翻译：所公开的用于改进的OFDM信道估计滤波的方法和系统利用高度相关的相邻子载波的存在来利用信道估计滤波的计算强度。具体地，接收与信道相对应的基带信号。去除基带信号的循环前缀，并将得到的信号变换成频域，并由基带接收信号的第一时间偏移补偿。然后提取用于发送基带信号的子载波信号。识别具有与信道的子载波高度相关的信道响应的相邻副载波，并且该信号由对应于子载波和相邻子载波的自相关函数的最小角度的第二时间偏移补偿。使用具有对应于所识别的高度相关的子载波的数量的滤波器长度的滤波器来对结果信号进行滤波以产生滤波的信道估计。

9. 发明申请

US20120020429A1 APPARATUS AND METHOD FOR COMPENSATING FOR CLIPPING POWER LOSSES 有权
标题翻译：用于补偿电源损耗的装置和方法
公开(公告)号：US20120020429A1
公开(公告)日：2012-01-26
申请号：US13255711
申请日：2009-03-09
申请人： James Peroulas , Qun Liao
发明人： James Peroulas , Qun Liao
IPC分类号： H04L27/00
CPC分类号： H04L27/2623
摘要： An apparatus and method for compensating for transmit power losses that are caused by the addition of a clipping or crest factor reduction module in the TX path of a communications system. The method includes applying a gain to a signal input into the crest factor reduction module, so that a power of a signal output from the crest factor reduction module is equal to a power of a signal output from a baseband signal generation module in the TX chain. The apparatus and method have the benefit that the peaks of the signal to be transmitted will be consistent over a wide range of TX power values.
摘要翻译：一种用于补偿在通信系统的TX路径中添加限幅或波峰因数降低模块引起的发射功率损耗的装置和方法。该方法包括对输入到波峰因数降低模块的信号应用增益，使得从波峰因数降低模块输出的信号的功率等于从TX链中的基带信号发生模块输出的信号的功率。该装置和方法具有以下优点：待传输的信号的峰值将在宽范围的TX功率值上是一致的。

10. 发明申请

US20220086920A1 RANDOM ACCESS CONFIGURATIONS 有权
公开(公告)号：US20220086920A1
公开(公告)日：2022-03-17
申请号：US17538956
申请日：2021-11-30
申请人： ZTE Wistron Telecom AB , ZTE (TX) INC.
发明人： Patrick SVEDMAN
IPC分类号： H04W74/08 , H04B17/336 , H04W24/10 , H04W56/00 , H04W74/02
摘要： A system and method for random access configurations are disclosed herein. In one embodiment, a method performed by a communication device includes: defining, based on a parameter for communication with a communication node, at least one of: a plurality of random access channel (RACH) groups, and a relationship between individual RACH groups of the plurality of RACH groups and measurement results; obtaining the measurement results from a plurality of signals; determining a matching RACH group from the plurality of RACH groups based on the measurement results; and sending a message using at least one resource of the matching RACH group.

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