专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08626072B2 Intercell interference mitigation 有权
标题翻译：小区干扰减轻
公开(公告)号：US08626072B2
公开(公告)日：2014-01-07
申请号：US13472040
申请日：2012-05-15
申请人： Hari Sankar , Ron Porat , Danjie Pan , Wee Peng Goh , Srikanth Gummadi , Lei Wang
发明人： Hari Sankar , Ron Porat , Danjie Pan , Wee Peng Goh , Srikanth Gummadi , Lei Wang
IPC分类号： H04B1/00
CPC分类号： H04L5/0032 , H04L1/0026 , H04L5/0007 , H04L5/0037 , H04L5/0057 , H04L5/0062 , H04L5/0066 , H04L25/0204 , H04W72/0406 , H04W72/0453 , H04W72/048 , H04W72/082
摘要： Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.
摘要翻译：描述了用于减轻跨越多个相邻覆盖区域的基本上相同的工作频带的无线通信系统中的小区间干扰的方法和装置。操作频带可以在多个相邻或相邻的小区之间共享，例如在频率重用一个配置中。无线通信系统可以跨多个基站同步一个或多个资源分配区域或区域，并且可以协调每个资源分配区域内的置换类型。基站可以协调多个协调资源分配区域中的每一个中的导频配置。可以基于干扰级别在协调的资源分配区域中为用户站分配资源。订户站可以确定协调资源分配区域中的多个基站中的每个基站的信道估计以减轻干扰。

22. 发明授权

US08520576B2 Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications 失效
公开(公告)号：US08520576B2
公开(公告)日：2013-08-27
申请号：US13196721
申请日：2011-08-02
申请人： Joonsuk Kim , Ron Porat , Vinko Erceg
发明人： Joonsuk Kim , Ron Porat , Vinko Erceg
IPC分类号： H04B7/00
CPC分类号： H04B7/0452 , H04B7/0413 , H04B7/0417 , H04B7/043 , H04B7/0636 , H04B7/0689 , H04B7/0871 , H04L5/0048 , H04W88/06
摘要： Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications. A beamformer provides a first communication to a beamformee, and based thereon, the beamformee may ascertain certain characteristics associated with the type and format of feedback to be provided to the beamformee via a second communication from the beamformee to the beamformer. For example, the first communication may include indication of a current operational mode, such as whether it is in accordance with single-user multiple input multiple output (SU-MIMO) or multi-user multiple-input-multiple-output (MU-MIMO). Also, the first communication may indicate a requested steering matrix's rank to be employed in accordance with subsequent beamforming by the beamformer. Also, additional information such as that pertaining to per-tone SNR values for each respective space-time stream, per-tone or per-sub-band eigen-values, the particular channel width being employed (e.g., 20, 40, 80, or 160 MHz), etc. may be included within the second communication.

23. 发明申请

US20130058426A1 CLOSED FORM SINGULAR VALUE DECOMPOSITION 有权
标题翻译：封闭形式的单值分解
公开(公告)号：US20130058426A1
公开(公告)日：2013-03-07
申请号：US13669786
申请日：2012-11-06
申请人： Ron Porat , Yi Jiang
发明人： Ron Porat , Yi Jiang
IPC分类号： H04B7/02
CPC分类号： H04B7/0626 , H04B7/0417 , H04L5/0023 , H04L25/03343
摘要： The subject matter disclosed herein provides methods and apparatus for determining a singular value decomposition, providing feedback from a client station to a base station, and closed loop operation of a wireless system implementing multiple-input multiple-output (MIMO). The method may include determining one or more singular vectors using a closed form singular value decomposition. The one or more determined singular vectors may be provided to a precoder at the base station as feedback. The method may include aligning a phase of one or more singular vectors. The method may also include determining, at a client station, a plurality of singular vectors for channels used in a MIMO transmission from a base station to a client station. The client station may provide an indication to the base station regarding whether to use a singular value decomposition or a uniform channel decomposition. Related systems, apparatus, methods, and/or articles are also described.
摘要翻译：本文公开的主题提供了用于确定奇异值分解，提供从客户站到基站的反馈以及实现多输入多输出（MIMO）的无线系统的闭环操作的方法和装置。该方法可以包括使用闭合形式奇异值分解来确定一个或多个奇异向量。可以将一个或多个确定的奇异向量作为反馈提供给基站处的预编码器。该方法可以包括对齐一个或多个奇异矢量的相位。该方法还可以包括在客户端站处确定在从基站到客户站的MIMO传输中使用的信道的多个奇异向量。客户端站可以向基站提供关于是使用奇异值分解还是均匀信道分解的指示。还描述了相关系统，装置，方法和/或制品。

24. 发明申请

US20120269124A1 Long training field (LTF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的长训练场（LTF）
公开(公告)号：US20120269124A1
公开(公告)日：2012-10-25
申请号：US13454010
申请日：2012-04-23
申请人： Ron Porat
发明人： Ron Porat
IPC分类号： H04W4/00
CPC分类号： H04L27/2618 , H04L27/2602 , H04L27/2613 , H04L27/2666 , H04W52/18 , H04W72/1231 , H04W84/12
摘要： Long training field (LTF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications. Classification of a signal may be performed using one or more LTF's therein. While such one or more LTF's may also be employed for performing functions such as channel estimation, channel characterization, etc., one or more particular characteristics of an LTF extracted from a received signal may also be employed to classify the signal as corresponding to one of a number of possible signal types. For example, such LTF-based classification may be used to classify the respective channel bandwidths associated with the signal (e.g., as being either 1 MHz or 2 MHz channel bandwidth). Generally, one or more LTF fields within one or more signals are employed for any of a number of additional uses beyond or in addition to such functions as channel estimation, channel characterization, etc.
摘要翻译：在单用户，多用户，多路访问和/或MIMO无线通信中使用的长训练场（LTF）。可以使用其中的一个或多个LTF来执行信号的分类。虽然这样的一个或多个LTF也可以用于执行诸如信道估计，信道表征等功能，但也可以采用从接收信号中提取的LTF的一个或多个特定特性来将信号分类为一些可能的信号类型。例如，这种基于LTF的分类可以用于对与信号相关联的相应信道带宽进行分类（例如，作为1MHz或2MHz信道带宽）。通常，一个或多个信号中的一个或多个LTF场用于除了诸如信道估计，信道表征等功能之外的附加用途中的任何一个。

25. 发明申请

US20120269069A1 Device coexistence within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：单用户，多用户，多路访问和/或MIMO无线通信中的设备共存
公开(公告)号：US20120269069A1
公开(公告)日：2012-10-25
申请号：US13454033
申请日：2012-04-23
申请人： Ron Porat , Nihar Jindal , Matthew James Fischer
发明人： Ron Porat , Nihar Jindal , Matthew James Fischer
IPC分类号： H04W24/00 , H04W88/08 , H04W4/00
CPC分类号： H04L27/2618 , H04L27/2602 , H04L27/2613 , H04L27/2666 , H04W52/18 , H04W72/1231 , H04W84/12
摘要： Device coexistence within single user, multiple user, multiple access, and/or MIMO wireless communications. Different respective communication devices operating using different respective communication channels having different respective channel bandwidths may be implemented within a given communication system. For example, different respective communication devices may belong to different basic services sets (BSSs) (e.g., a 1 MHz BSS operating using channel bandwidths of 1 MHz, and a 2 MHz BSS operating using channel bandwidths of 2 MHz). To effectuate coexistence among different respective devices operating using different respective channel bandwidths, devices but longing to the 1 MHz BSS monitor for and listen for 2 MHz wide communication activity, and those 1 MHz BSS communication devices defer to any detected communication activity on any portion of the 2 MHz channel.
摘要翻译：单用户，多用户，多路访问和/或MIMO无线通信中的设备共存。可以在给定的通信系统内实现使用具有不同相应信道带宽的不同相应通信信道工作的不同的各个通信设备。例如，不同的各个通信设备可以属于不同的基本服务集（BSS）（例如，使用1MHz的信道带宽操作的1MHz BSS，以及使用2MHz的信道带宽操作的2MHz BSS）。为了实现使用不同的相应信道带宽工作的不同的各个设备之间的共存，但是期望到1MHz BSS监视器并且监听2MHz宽的通信活动，并且那些1MHz BSS通信设备延迟任何检测到的通信活动 2 MHz信道。

26. 发明申请

US20120087304A1 Differential feedback within single user, multiple user, multiple access, and/or MIMO wireless communications 有权
标题翻译：单用户，多用户，多路访问和/或MIMO无线通信中的差分反馈
公开(公告)号：US20120087304A1
公开(公告)日：2012-04-12
申请号：US13239582
申请日：2011-09-22
申请人： Ron Porat , Matthew James Fischer , Eric J. Ojard
发明人： Ron Porat , Matthew James Fischer , Eric J. Ojard
IPC分类号： H04W4/00
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/0456 , H04B7/0641 , H04B7/065 , H04B7/0658 , H04W88/02 , H04W88/08
摘要： Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (Δ) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (Δ).
摘要翻译：多用户，多路访问和/或MIMO无线通信中的差分反馈。在由通信设备（例如，正在执行波束成形以在随后的信号传输中使用）的全反馈信号之后，接收差分反馈信号。这些差分反馈信号用于更新全反馈信号，从而产生更新/修改的全反馈信号。随着时间的推移，随后可以基于稍后接收到的推理反馈信号来更新/修改的全反馈信号。这种差分反馈信令利用通信信道中的时间和/或频率相关性来通过相对于先前值反馈差异或增量（＆Dgr）来提供减少的反馈开销。例如，代替在每个相应/连续的通信中提供全反馈信号，通过提供差值或增量（＆Dgr）来减少反馈开销。

27. 发明申请

US20120044829A1 SYSTEM AND METHOD FOR FACILITATING CO-CHANNEL AND CO-EXISTENCE VIA ENHANCED FRAME PREAMBLES 失效
标题翻译：通过增强框架前缀来促进共通道和共存的系统和方法
公开(公告)号：US20120044829A1
公开(公告)日：2012-02-23
申请号：US13285837
申请日：2011-10-31
申请人： Paul W. Piggin , Srikanth Gummadi , Ron Porat , Kenneth L. Stanwood
发明人： Paul W. Piggin , Srikanth Gummadi , Ron Porat , Kenneth L. Stanwood
IPC分类号： H04W72/04 , H04W84/00 , H04L12/28 , H04W28/00 , H04L12/26 , H04W24/00
CPC分类号： H04W16/14 , H04W8/005 , H04W48/12 , H04W76/10 , H04W92/20
摘要： Enhanced frame preambles facilitate co-channel co-existence in a wireless communication environment by having at least one preamble characteristic that connotes channel-sharing information regarding the wireless communication environment. In an exemplary embodiment, a downlink subframe is received in one or more wireless communication signals in a wireless communication environment. A preamble is detected in the downlink subframe, and at least one characteristic of the preamble is ascertained. Channel-sharing information for the wireless communication environment is determined based upon the at least one characteristic of the preamble. In another exemplary embodiment, a channel is scanned to detect secondary preambles being transmitted on the channel. A current preamble configuration, including a permutation of preamble location and preamble content corresponding to the secondary preambles, is determined, which connote channel-sharing information. A next available preamble location may be adopted based on the current preamble configuration.
摘要翻译：增强帧前同步码可以通过具有至少一个前导码特征来促进无线通信环境中的共信道共存，该前导码特征意味着关于无线通信环境的信道共享信息。在示例性实施例中，在无线通信环境中的一个或多个无线通信信号中接收下行链路子帧。在下行链路子帧中检测到前导码，并且确定前导码的至少一个特征。基于前导码的至少一个特征来确定用于无线通信环境的信道共享信息。在另一示例性实施例中，扫描信道以检测正在信道上发送的辅助前同步码。确定包括前导码位置的置换和对应于次要前导码的前导码内容的当前前置码配置，这意味着信道共享信息。可以基于当前前置码配置来采用下一个可用的前导码位置。

28. 发明申请

US20120033592A1 Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications 失效
标题翻译：单用户，多用户，多路访问和/或MIMO无线通信中的显式反馈格式
公开(公告)号：US20120033592A1
公开(公告)日：2012-02-09
申请号：US13196721
申请日：2011-08-02
申请人： Joonsuk Kim , Ron Porat , Vinko Erceg
发明人： Joonsuk Kim , Ron Porat , Vinko Erceg
IPC分类号： H04B1/66 , H04B7/00
CPC分类号： H04B7/0452 , H04B7/0413 , H04B7/0417 , H04B7/043 , H04B7/0636 , H04B7/0689 , H04B7/0871 , H04L5/0048 , H04W88/06
摘要： Explicit feedback format within single user, multiple user, multiple access, and/or MIMO wireless communications. A beamformer provides a first communication to a beamformee, and based thereon, the beamformee may ascertain certain characteristics associated with the type and format of feedback to be provided to the beamformee via a second communication from the beamformee to the beamformer. For example, the first communication may include indication of a current operational mode, such as whether it is in accordance with single-user multiple input multiple output (SU-MIMO) or multi-user multiple-input-multiple-output (MU-MIMO). Also, the first communication may indicate a requested steering matrix's rank to be employed in accordance with subsequent beamforming by the beamformer. Also, additional information such as that pertaining to per-tone SNR values for each respective space-time stream, per-tone or per-sub-band eigen-values, the particular channel width being employed (e.g., 20, 40, 80, or 160 MHz), etc. may be included within the second communication.
摘要翻译：单用户，多用户，多路访问和/或MIMO无线通信中的显式反馈格式。波束形成器向波束形成器提供第一通信，并且基于此，波束形成器可以确定通过从波束形成器到波束形成器的第二通信来提供给波束形成器的反馈的类型和格式相关联的某些特性。例如，第一通信可以包括当前操作模式的指示，诸如它是否符合单用户多输入多输出（SU-MIMO）或多用户多输入多输出（MU-MIMO ）。此外，第一通信可以指示要根据波束形成器的后续波束成形采用的所请求的导向矩阵的等级。此外，附加信息，例如关于每个相应时空流，每音调或每个子带本征值的每个音调SNR值，使用特定信道宽度的附加信息（例如，20,40,80，或160MHz）等可以包括在第二通信内。

29. 发明申请

US20120033566A1 HYBRID FEEDBACK FOR CLOSED LOOP MULTIPLE-INPUT MULTIPLE- OUTPUT 审中-公开
标题翻译：闭环反馈多输入多输出混合反馈
公开(公告)号：US20120033566A1
公开(公告)日：2012-02-09
申请号：US13061480
申请日：2009-08-28
申请人： Ron Porat , Maryam Shanechi , Uri Erez
发明人： Ron Porat , Maryam Shanechi , Uri Erez
IPC分类号： H04W24/00
CPC分类号： H04L25/0248 , H04L5/0023 , H04L25/03343 , H04L2025/03426 , H04L2025/03808
摘要： The subject matter disclosed herein provides methods and apparatus for closed loop operation of a wireless system implementing multiple input and multiple output (MIMO). In one aspect, there is provided a method. The method may provide channel estimation feedback to a base station by a user equipment in a wireless communication system. The method includes receiving downlink data from the base station, calculating a digital portion representing a channel parameter estimation of the downlink data, calculating an analog portion representing an error estimation of the digital portion and providing, as feedback, the digital portion and the analog portion to the base station.
摘要翻译：本文公开的主题提供了实现多输入多输出（MIMO）的无线系统的闭环操作的方法和装置。一方面，提供了一种方法。该方法可以由无线通信系统中的用户设备向基站提供信道估计反馈。该方法包括从基站接收下行链路数据，计算表示下行链路数据的信道参数估计的数字部分，计算表示数字部分的误差估计的模拟部分，并提供数字部分和模拟部分的反馈到基站。

30. 发明申请

US20100272014A1 Parametric Compression of Rank-1 Analog Feedback 失效
标题翻译：等级-1模拟反馈的参数压缩
公开(公告)号：US20100272014A1
公开(公告)日：2010-10-28
申请号：US12732275
申请日：2010-03-26
申请人： Philip V. Orlik , Ron Porat , Ramesh Annavajjala , Man-On Pun
发明人： Philip V. Orlik , Ron Porat , Ramesh Annavajjala , Man-On Pun
IPC分类号： H04W40/00
CPC分类号： H04B7/0417 , H04B7/0469 , H04B7/0626 , H04B7/0636 , H04B7/0663
摘要： Channel state information in a closed-loop, multiple-input, multiple-output wireless networks is fed back from each mobile station to a base station by first determining a transmit covariance matrix R, and applying a singular value decomposition (SVD) R=UΣVH, where U, V are left and right singular vector matrices, Σ is a diagonal matrix with singular values. The matrix V includes column vectors V. A beamforming vector vmax=[1 exp(jΦ)exp(j2Φ) . . . exp(jΦ)]/√{square root over (N)}] is approximated by the column vector V having a maximum magnitude, where Φ is a real number. Then, only the angle Φ is fed back using a phase modulation mapping of the components exp(jΦ) onto the associated subcarrier.
摘要翻译：闭环多输入多输出无线网络中的信道状态信息通过首先确定发射协方差矩阵R，从每个移动台反馈到基站，并应用奇异值分解（SVD）R = U＆Sgr ; VH，其中U，V是左和右奇异矢量矩阵，＆Sgr; 是具有奇异值的对角矩阵。矩阵V包括列向量V.波束形成向量vmax = [1exp（jΦ）exp（j2Φ））。。。 exp（jΦ）] /√{平方根（N）}]由具有最大幅度的列向量V近似，其中Φ是实数。然后，仅使用分量exp（jΦ）的相位调制映射到相关联的子载波上来反馈角度Φ。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式