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21. 发明申请

US20130044697A1 NETWORK COORDINATION FOR IMPROVED INTERFERENCE CANCELLATION 有权
标题翻译：网络协调改善干扰消除
公开(公告)号：US20130044697A1
公开(公告)日：2013-02-21
申请号：US13364891
申请日：2012-02-02
申请人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
发明人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
IPC分类号： H04B15/00 , H04W52/04 , H04W72/08
CPC分类号： H04W72/082 , H04L1/0003 , H04L1/0606
摘要： Communications by base stations in wireless communication networks may be coordinated in a manner to improve performance by mobile devices experiencing interference from non-serving base stations. In particular, base station communications may be coordinated to improve the performance of interference cancellation by mobile devices. If a user equipment (UE) experiencing interference is capable of interference cancellation, then the base stations may coordinate to increase interference to that user equipment so as to improve that UE's ability to perform interference cancellation. Base stations may also coordinate to reduce interference for a UE, regardless of the UE's ability to perform interference cancellation. Mobile device performance improvements may also be achieved by coordinating scheduling of resources by the non-serving base stations, by using communication formats compatible with interference cancellation, by spatial coordination.
摘要翻译：无线通信网络中的基站的通信可以以改善经历来自非服务基站的干扰的移动设备的性能的方式进行协调。特别地，可以协调基站通信以改善移动设备的干扰消除的性能。如果遇到干扰的用户设备（UE）能够进行干扰消除，则基站可以进行协调，以增加对该用户设备的干扰，从而提高UE执行干扰消除的能力。无论UE是否执行干扰消除的能力，基站还可以协调以减少对UE的干扰。还可以通过使用通过空间协调使用与干扰消除相兼容的通信格式来协调非服务基站的资源调度来实现移动设备性能改进。

22. 发明申请

US20120224499A1 CHANNEL ESTIMATION FOR REFERENCE SIGNAL INTERFERENCE CANCELATION 有权
标题翻译：参考信号干扰消除的信道估计
公开(公告)号：US20120224499A1
公开(公告)日：2012-09-06
申请号：US13195711
申请日：2011-08-01
申请人： Taesang Yoo , Tao Luo
发明人： Taesang Yoo , Tao Luo
IPC分类号： H04L25/08 , H04W72/02
CPC分类号： H04L25/0204 , H04J11/005 , H04L25/0224 , H04W52/02 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146
摘要： Various aspects disclosed are directed to improvements to channel estimation through more efficient cancelation of neighboring common reference signals (CRS). Cancelation of CRS from other cells allows the user equipment (UE) a better opportunity for accurately detecting the reference signal of the current cell. Alternative aspects have a recursive element that uses previous estimates as the basis for the current channel estimate. The various aspects of the present disclosure generally have two alternative embodiments: (1) initializing the channel estimation for all cells with a previous channel estimate and cancellation of reference signals of non-target cells to accurately update channel estimate of the target cell; and (2) initializing the channel estimate for all cells with a previous channel estimate and cancelation of reference signals of all cells to accurately estimate residual channel estimate of the target cell and update its channel estimate.
摘要翻译：所公开的各个方面旨在通过更有效地消除相邻公共参考信号（CRS）来改进信道估计。从其他小区中取消CRS允许用户设备（UE）更准确地检测当前小区的参考信号。替代方面具有使用先前估计作为当前信道估计的基础的递归因子。本公开的各个方面通常具有两个替代实施例：（1）利用先前的信道估计和非目标小区的参考信号的消除来初始化所有小区的信道估计，以准确地更新目标小区的信道估计; 和（2）利用先前的信道估计和所有小区的参考信号的消除来初始化所有小区的信道估计，以精确估计目标小区的剩余信道估计并更新其信道估计。

23. 发明申请

US20110286376A1 PER-CELL TIMING AND/OR FREQUENCY ACQUISITION AND THEIR USE ON CHANNEL ESTIMATION IN WIRELESS NETWORKS 审中-公开
标题翻译：单元时间和/或频率采集及其在无线网络中的信道估计中的应用
公开(公告)号：US20110286376A1
公开(公告)日：2011-11-24
申请号：US12949020
申请日：2010-11-18
申请人： Taesang Yoo , Tao Luo , Xiaoxia Zhang , Ke Liu
发明人： Taesang Yoo , Tao Luo , Xiaoxia Zhang , Ke Liu
IPC分类号： H04W56/00 , H04W4/08
CPC分类号： H04W24/00 , H04W56/00 , H04W56/0015 , H04W56/0035
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的定时导出系统定时，相对于估计的系统定时为多个单元确定定时偏移，并且使用定时偏移来处理从多个单元接收的信号。此外，提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的频率导出载波频率，相对于多个单元确定频率偏移使用频率偏移来处理估计的系统定时和从多个小区接收的信号。

24. 发明申请

US20110261673A1 MODIFIED SPATIAL DIVERSITY SCHEMES FOR COVERAGE ENHANCEMENT 有权
标题翻译：改进的空间多样性方案进行覆盖增强
公开(公告)号：US20110261673A1
公开(公告)日：2011-10-27
申请号：US13094669
申请日：2011-04-26
申请人： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Ke Liu
发明人： Tao Luo , Kapil Bhattad , Xiaoxia Zhang , Taesang Yoo , Ke Liu
IPC分类号： H04W72/04 , H04W24/00
CPC分类号： H04J11/0053 , H04B7/0473 , H04J11/0033
摘要： In one aspect, a method to enhance coverage in a heterogeneous wireless network wireless communication is disclosed. The method includes generating a reference signal indicating a plurality of transmit antenna ports and generating modulation symbols. Modulation symbols are assigned to each of the plurality of transmit antenna ports, in accordance with a spatial diversity coding scheme for the plurality of transmit antenna ports. At least one of the modulation symbols assigned to at least one of the plurality of transmit antenna ports is muted prior to transmission in accordance with the spatial diversity coding scheme. The non-muted modulation symbols and the reference signal are transmitted on the other of the plurality of transmit antenna ports.
摘要翻译：一方面，公开了一种在异构无线网络无线通信中增强覆盖的方法。该方法包括产生指示多个发射天线端口并产生调制符号的参考信号。根据用于多个发射天线端口的空间分集编码方案，将调制符号分配给多个发射天线端口中的每一个。根据空间分集编码方案，分配给多个发送天线端口中的至少一个的调制符号中的至少一个在发送之前被静音。在多个发送天线端口中的另一个发送非静噪调制符号和参考信号。

25. 发明申请

US20110235601A1 PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) PROTECTION 有权
标题翻译：物理下行共享信道（PDSCH）保护
公开(公告)号：US20110235601A1
公开(公告)日：2011-09-29
申请号：US13071145
申请日：2011-03-24
申请人： Taesang Yoo , Tao Luo , Yongbin Wei , Durga Prasad Malladi
发明人： Taesang Yoo , Tao Luo , Yongbin Wei , Durga Prasad Malladi
IPC分类号： H04W72/04
CPC分类号： H04L5/0053 , H04L5/0073 , H04W72/082
摘要： According to certain aspects, resource blocks used for physical downlink shared channel (PDSCH) transmissions may be allocated in a manner to manage interference in neighboring cells. According to certain aspects, one or more guard RBs may be utilized when transmitting PDSCH in a first cell an effort to reduce interference by transmissions in a second cell.
摘要翻译：根据某些方面，可以以管理相邻小区中的干扰的方式来分配用于物理下行链路共享信道（PDSCH）传输的资源块。根据某些方面，当在第一小区中发送PDSCH时，可以利用一个或多个保护RB来努力减少第二小区中的传输的干扰。

26. 发明申请

US20110205982A1 METHOD AND APPARATUS THAT FACILITATES DETECTING SYSTEM INFORMATION BLOCKS IN A HETEROGENEOUS NETWORK 有权
标题翻译：检测异构网络中的系统信息块的方法和装置
公开(公告)号：US20110205982A1
公开(公告)日：2011-08-25
申请号：US12860747
申请日：2010-08-20
申请人： Taesang Yoo , Tao Luo , Kibeom Seong
发明人： Taesang Yoo , Tao Luo , Kibeom Seong
IPC分类号： H04W72/04
CPC分类号： H04L5/0058 , H04L1/0038 , H04L1/0039 , H04W48/12
摘要： Aspects are disclosed for detecting a system information block (SIB) within a heterogeneous network. In one aspect, a type of scheduling information pertaining to an SIB is selected, and a parameter known to a wireless terminal is associated with the type of scheduling information. The wireless terminal then decodes the SIB by deriving the scheduling information from the known parameters, without having to decode a Physical Downlink Control Channel.
摘要翻译：公开了用于检测异构网络内的系统信息块（SIB）的方面。一方面，选择与SIB有关的调度信息的种类，将无线终端所知的参数与调度信息的种类相关联。无线终端然后通过从已知参数导出调度信息来对SIB进行解码，而不必解码物理下行链路控制信道。

27. 发明申请

US20110194430A1 METHOD AND APPARATUS FOR UNIFIED CHANNEL ESTIMATION FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：用于无线通信的统一通道估计的方法和装置
公开(公告)号：US20110194430A1
公开(公告)日：2011-08-11
申请号：US12968674
申请日：2010-12-15
申请人： Taesang Yoo , Tao Luo , Yongbin Wei , Hanfang Pan , Michael A. Howard
发明人： Taesang Yoo , Tao Luo , Yongbin Wei , Hanfang Pan , Michael A. Howard
IPC分类号： H04W24/00
CPC分类号： H04L25/0224 , H04L5/0007
摘要： Certain aspects of the disclosure propose a unified channel estimation algorithm that combines two or more channel estimation algorithms in a single piece of hardware or software. The proposed unified channel estimation may dynamically switch, based on one or more metrics, between different modes of operation that utilize different channel estimation algorithms.
摘要翻译：本公开的某些方面提出了将单个硬件或软件中的两个或多个信道估计算法组合的统一信道估计算法。所提出的统一信道估计可以基于利用不同信道估计算法的不同操作模式之间的一个或多个度量动态地切换。

28. 发明申请

US20110026645A1 SYSTEMS, APPARATUS AND METHODS FOR BROADCAST CHANNEL DECODING 有权
标题翻译：用于广播信道解码的系统，装置和方法
公开(公告)号：US20110026645A1
公开(公告)日：2011-02-03
申请号：US12845649
申请日：2010-07-28
申请人： Tao Luo , Taesang Yoo , Kibeom Seong
发明人： Tao Luo , Taesang Yoo , Kibeom Seong
IPC分类号： H04B17/00 , H04L27/06
CPC分类号： H04L1/0038 , H04W48/16
摘要： Techniques for reliable channel decoding in a wireless network are provided. In one aspect, a wireless device receives system information over a physical broadcast channel of a downlink transmission. The wireless device decodes the physical broadcast channel of a current radio frame using a plurality of hypotheses until the decoding passes a cyclic redundancy check. Thereafter, the wireless device compares system information from the current radio frame with information obtained from a previous radio frame. The information from the previous radio frame may include one or more network parameters which may be stored in a memory of the wireless device. In some aspects, the comparison may be performed over a plurality of radio frames. Based at least in part on a result of the comparing, the wireless device may selectively reject system information from one or more of the radio frames.
摘要翻译：提供了一种在无线网络中进行可靠信道解码的技术。在一个方面，无线设备通过下行链路传输的物理广播信道接收系统信息。无线设备使用多个假设来解码当前无线电帧的物理广播信道，直到解码通过循环冗余校验。此后，无线设备将来自当前无线电帧的系统信息与从先前无线电帧获得的信息进行比较。来自先前无线电帧的信息可以包括可以存储在无线设备的存储器中的一个或多个网络参数。在一些方面，可以在多个无线电帧上执行比较。至少部分地基于比较的结果，无线设备可以选择性地从一个或多个无线电帧中拒绝系统信息。

29. 发明授权

US09350475B2 Physical layer signaling to user equipment in a wireless communication system 有权
标题翻译：在无线通信系统中向用户设备的物理层信令
公开(公告)号：US09350475B2
公开(公告)日：2016-05-24
申请号：US13190308
申请日：2011-07-25
申请人： Taesang Yoo , Tao Luo , Tingfang Ji
发明人： Taesang Yoo , Tao Luo , Tingfang Ji
IPC分类号： H04W72/00 , H04J11/00 , H04B15/00 , H04L25/03
CPC分类号： H04J11/005 , H04B15/00 , H04L25/03891
摘要： A method of wireless communication includes receiving physical layer signaling from a serving eNodeB in a wireless network. Interference estimation, interference cancellation and/or spatial equalization of user equipment is controlled in accordance with the received signaling.
摘要翻译：无线通信的方法包括从无线网络中的服务eNodeB接收物理层信令。根据接收的信令控制用户设备的干扰估计，干扰消除和/或空间均衡。

30. 发明授权

US08848603B2 Precoding control channels in wireless networks 有权
标题翻译：无线网络中的预编码控制信道
公开(公告)号：US08848603B2
公开(公告)日：2014-09-30
申请号：US12816708
申请日：2010-06-16
申请人： Tao Luo , Dung Ngoc Doan , Taesang Yoo , Xiaoxia Zhang , Kibeom Seong
发明人： Tao Luo , Dung Ngoc Doan , Taesang Yoo , Xiaoxia Zhang , Kibeom Seong
IPC分类号： H04J1/16 , H04L25/03 , H04L5/00
CPC分类号： H04L25/03343 , H04B7/0413 , H04B7/0456 , H04L5/0048 , H04L2025/03414 , H04L2025/03426
摘要： Systems and methodologies are described that facilitate precoding signals transmitted over downlink control channels to provide transmit diversity. A dedicated reference signal (DRS) related to a wireless device can additionally be precoded such that the wireless device can determine a precoder or related parameters based at least in part on performing a channel estimate for the precoded DRS signal. The wireless device can utilize the determined precoder or related parameters to decode precoded signals received over downlink control channel resources. Additionally or alternatively, an access point can signal a sequence of precoders to the wireless device. The access point can cycle through the sequence of precoders to precode signals for transmission over downlink control channel resources, and the wireless device can decode the signals based at least in part on similarly cycling through the precoders for received signals.
摘要翻译：描述了促进预编码在下行链路控制信道上发送的信号以提供发射分集的系统和方法。可以另外对与无线设备相关的专用参考信号（DRS）进行预编码，使得无线设备可以至少部分地基于对预编码的DRS信号执行信道估计来确定预编码器或相关参数。无线设备可以利用所确定的预编码器或相关参数来解码通过下行链路控制信道资源接收的预编码信号。附加地或替代地，接入点可以向无线设备发送一系列预编码器。接入点可以循环通过预编码器序列来预编码信号以在下行链路控制信道资源上传输，并且无线设备可以至少部分地基于类似地循环通过用于接收信号的预编码器来对信号进行解码。

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