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11. 发明授权

US08432985B2 Pilot design for improved channel and interference estimation 有权
标题翻译：用于改进通道和干扰估计的导频设计
公开(公告)号：US08432985B2
公开(公告)日：2013-04-30
申请号：US13402537
申请日：2012-02-22
申请人： Petru Cristian Budianu , Dhananjay Ashok Gore , Alexei Yurievitch Gorokhov
发明人： Petru Cristian Budianu , Dhananjay Ashok Gore , Alexei Yurievitch Gorokhov
IPC分类号： H04B26/00
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048
摘要： Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time frequency block based on a first sequence and may generate pilot symbols for a second cluster in the time frequency block based on a second sequence. The first and second sequences may include common elements arranged in different orders and may be considered as different versions of a single sequence. The terminal may transmit the pilot symbols in their respective clusters. A base station may obtain received pilot symbols from multiple clusters in the time frequency block. The base station may form each of multiple basis vectors with multiple versions of the sequence assigned to the terminal and may process the received pilot symbols with the multiple basis vectors to obtain a channel estimate for the terminal.
摘要翻译：描述用于发送导频和处理接收导频以获得信道和干扰估计的技术。终端可以基于第一序列在时间频率块中生成用于第一簇的导频符号，并且可以基于第二序列在时间频率块中生成用于第二簇的导频符号。第一和第二序列可以包括以不同顺序排列的公共元素，并且可以被认为是单个序列的不同版本。终端可以在它们各自的簇中发送导频符号。基站可以在时间频率块中从多个簇获得接收到的导频符号。基站可以形成分配给终端的序列的多个版本的多个基本向量中的每一个，并且可以用多个基本向量处理所接收的导频符号以获得终端的信道估计。

12. 发明申请

US20110268050A1 APPARATUS AND METHOD FOR JOINT ENCODING OF USER SPECIFIC REFERENCE SIGNAL INFORMATION IN WIRELESS COMMUNICATION 有权
标题翻译：用于无线通信中用户特定参考信号信号的编辑的装置和方法
公开(公告)号：US20110268050A1
公开(公告)日：2011-11-03
申请号：US12917397
申请日：2010-11-01
申请人： Amir Farajidana , Alexei Yurievitch Gorokhov , Juan Montojo , Stefan Geirhofer
发明人： Amir Farajidana , Alexei Yurievitch Gorokhov , Juan Montojo , Stefan Geirhofer
IPC分类号： H04W72/06
CPC分类号： H04L5/0051 , H04L1/004 , H04L25/0226
摘要： An apparatus and method for providing encoded information pertaining to a user-specific reference signal associated with a user equipment in a multiple access wireless communication system are provided. The encoded information jointly indicates a rank of transmission together with at least one parameter relating to the user-specific reference signal, such as a set of antenna ports and a user-specific reference signal pattern. The encoded information is transmitted in a downlink control channel to reduce overhead in the channel.
摘要翻译：提供了一种用于在多址无线通信系统中提供与用户设备相关联的用户特定参考信号的编码信息的装置和方法。编码信息联合地指示传输等级以及与用户特定参考信号有关的至少一个参数，诸如一组天线端口和用户特定参考信号模式。编码信息在下行链路控制信道中发送以减少信道中的开销。

13. 发明申请

US20110217985A1 PREDICTIVE SHORT-TERM CHANNEL QUALITY REPORTING UTILIZING REFERENCE SIGNALS 审中-公开
标题翻译：预测短期通道质量报告利用参考信号
公开(公告)号：US20110217985A1
公开(公告)日：2011-09-08
申请号：US12876400
申请日：2010-09-07
申请人： Alexei Yurievitch Gorokhov
发明人： Alexei Yurievitch Gorokhov
IPC分类号： H04W72/08
CPC分类号： H04W24/10 , H04W72/04 , H04W72/042 , H04W72/082
摘要： Providing for resource-specific interference reporting to facilitate short-term channel quality and transmission parameterization in wireless communications is provided herein. By way of example, a UE observing high interference can utilize reference signals of a second UE (e.g., that observes less interference) for short-term channel quality measurements. These measurements can be on an order of one or two signal subframes, or less, to reflect interference resulting from distinct scheduling decisions of an interfering transmitter. Based on the short-term channel quality measurements, a base station serving the UE can initiate detailed interference mitigation, perform scheduling decisions that compensate for distinct parameterization of the interfering cell, or the like. This can result in improved wireless communications even for UEs observing very high wireless interference.
摘要翻译：本文提供了提供资源特异性的干扰报告以促进无线通信中的短期信道质量和传输参数化。作为示例，观察高干扰的UE可以利用第二UE的参考信号（例如，其观察到更少的干扰）用于短期信道质量测量。这些测量可以是一个或两个信号子帧的次序，或更少，以反映由干扰发射机的不同调度决定引起的干扰。基于短期信道质量测量，服务于UE的基站可以发起详细的干扰减轻，执行补偿干扰小区的不同参数化的调度决定等。即使对于观察到非常高的无线干扰的UE也可以实现改进的无线通信。

14. 发明申请

US20110205954A1 EXTENSION OF UE-RS TO DWPTS 有权
标题翻译： UE-RS扩展到DWPTS
公开(公告)号：US20110205954A1
公开(公告)日：2011-08-25
申请号：US12848969
申请日：2010-08-02
申请人： Alexei Yurievitch Gorokhov , Juan Montojo , Amir Farajidana , Kapil Bhattad , Brian Clarke Banister
发明人： Alexei Yurievitch Gorokhov , Juan Montojo , Amir Farajidana , Kapil Bhattad , Brian Clarke Banister
IPC分类号： H04W72/04 , H04B7/14
CPC分类号： H04L5/0051 , H04L5/0007 , H04L5/0058
摘要： Systems and methodologies are described that facilitate sending and/or receiving user equipment specific reference signals (UE-RSs) in a wireless communication environment. A UE-RS pattern can be selected, yielded, etc. based upon a number of symbols from a subframe utilized for downlink transmission. At least one time domain component of the UE-RS pattern can vary based upon the number of symbols from the subframe utilized for the downlink transmission. For instance, the at least one time domain component can be punctured, time-shifted, and so forth. Further, UE-RSs can be mapped to resource elements of the subframe as a function of the UE-RS pattern. Moreover, a UE can utilize the UE-RS pattern to detect UE-RSs on the resource elements of the subframe. Further, the UE can estimate a channel based upon the UE-RSs.
摘要翻译：描述了有助于在无线通信环境中发送和/或接收用户设备特定参考信号（UE-RS）的系统和方法。可以基于用于下行链路传输的子帧的多个符号来选择，产生UE-RS模式。 UE-RS模式的至少一个时域分量可以基于用于下行链路传输的子帧的符号数量而变化。例如，至少一个时域分量可以被打孔，时移等等。此外，UE-RS可以被映射到作为UE-RS模式的函数的子帧的资源元素。此外，UE可以利用UE-RS模式来检测子帧的资源元素上的UE-RS。此外，UE可以基于UE-RS估计信道。

15. 发明申请

US20100323711A1 METHODS AND APPARATUS FOR BEAMFORMING FOR FEMTOCELLS 有权
标题翻译：用于FEMTOCELLS的波束形成的方法和装置
公开(公告)号：US20100323711A1
公开(公告)日：2010-12-23
申请号：US12818054
申请日：2010-06-17
申请人： Aleksandar Damnjanovic , Alexei Yurievitch Gorokhov
发明人： Aleksandar Damnjanovic , Alexei Yurievitch Gorokhov
IPC分类号： H04W72/08 , H04B17/00 , H04B15/00
CPC分类号： H04L25/03821 , H04B7/0617 , H04B7/0626 , H04J11/0053 , H04W24/02 , H04W52/18 , H04W72/046 , H04W72/082 , H04W84/045
摘要： Methods and apparatus for beamforming for femtocells, such as in LTE wireless networks, to provide inter-cell coordination and interference mitigation are disclosed. A macrocell user equipment (UE) may determine information regarding an interfering femtocell node, such as a home eNodeB (HeNB). The information may be sent directly or indirectly, such as by a backhaul communication link, to the HeNB. The HeNB may adjust an output based on the information. The information may include spatial channel information, which may be used for beamforming at the HeNB output so as to mitigate interference in the direction of the UE.
摘要翻译：公开了用于毫微微小区（例如在LTE无线网络中）的波束成形的方法和装置，以提供小区间协调和干扰减轻。宏小区用户设备（UE）可以确定关于干扰毫微微小区节点（例如家庭eNodeB（HeNB））的信息。信息可以直接或间接地发送，例如通过回程通信链路发送给HeNB。 HeNB可以根据信息调整输出。信息可以包括空间信道信息，其可以用于HeNB输出处的波束成形，以便减轻UE的方向上的干扰。

16. 发明申请

US20210367724A1 METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL FOR USER EQUIPMENT WITH ASYMMETRIC TRANSMIT/RECEIVE 有权
公开(公告)号：US20210367724A1
公开(公告)日：2021-11-25
申请号：US16641639
申请日：2017-09-07
申请人： Yu ZHANG , Wanshi CHEN , Chao WEI , Peter GAAL , Timo Ville VINTOLA , Vishal MAHAJAN , Alexei Yurievitch GOROKHOV , Amir AMINZADEH GOHARI , Alexandros MANOLAKOS , Joseph Binamira SORIAGA , Valentin Alexandru GHEORGHIU , Quaicomm Incorporated
发明人： Yu Zhang , Wanshi Chen , Chao Wei , Peter Gaal , Timo Ville Vintola , Vishal Mahajan , Alexei Yurievitch Gorokhov , Amir Aminzadeh Gohari , Alexandros Manolakos , Joseph Binamira Soriaga , Valentin Alexandru Gheorghiu
IPC分类号： H04L5/00 , H04B7/0413
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

17. 发明授权

US08718210B2 Channel impulse response estimation for wireless receiver 有权
标题翻译：无线接收机的信道脉冲响应估计
公开(公告)号：US08718210B2
公开(公告)日：2014-05-06
申请号：US13237868
申请日：2011-09-20
申请人： Mariam Motamed , Alexei Yurievitch Gorokhov , Mike L. Mccloud , Parvathanathan Subrahmanya
发明人： Mariam Motamed , Alexei Yurievitch Gorokhov , Mike L. Mccloud , Parvathanathan Subrahmanya
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08
CPC分类号： H04L5/0051 , H04L25/0212 , H04L25/0224
摘要： Estimating a channel impulse response (CIR) for a wireless transmission, for example a multimedia broadcast multicast services single frequency network (MBSFN) transmission, may be performed by a receiver of an wireless subframe, without requiring operational memory in excess of what is needed for CIR estimation of unicast signaling, while providing enhanced delay spread coverage. The wireless subframe may be a MBSFN subframe. The receiver may form an aggregate vector of pilot tones extracted from an OFDM reference symbol of an wireless subframe. The receiver may subsample the aggregate vector to obtain a plurality of sub-vectors each comprising a distinct subsampling phase. The receiver may process the plurality of sub-vectors using an inverse fast Fourier transform to obtain time domain representations of each of the sub-vectors. The receiver may combine the time domain representations in various ways to obtain a CIR estimate for the wireless subframe.
摘要翻译：估计用于无线传输的信道脉冲响应（CIR），例如多媒体广播多播服务单频网（MBSFN）传输，可以由无线子帧的接收机执行，而不需要超过所需的操作存储器 CIR估计单播信令，同时提供增强的延迟扩展覆盖。无线子帧可以是MBSFN子帧。接收机可以形成从无线子帧的OFDM参考符号提取的导频音的聚合向量。接收机可以对聚合向量进行子采样以获得每个包括不同子采样相位的多个子向量。接收机可以使用快速傅里叶逆变换处理多个子向量，以获得每个子向量的时域表示。接收机可以以各种方式组合时域表示以获得无线子帧的CIR估计。

18. 发明授权

US08594688B2 Method and system for rate prediction in coordinated multi-point transmission 失效
标题翻译：协调多点传输速率预测方法与系统
公开(公告)号：US08594688B2
公开(公告)日：2013-11-26
申请号：US12962581
申请日：2010-12-07
申请人： Alan Barbieri , Alexei Yurievitch Gorokhov
发明人： Alan Barbieri , Alexei Yurievitch Gorokhov
IPC分类号： H04B7/24
CPC分类号： H04B7/0626 , H04B7/024 , H04B17/26 , H04B17/336 , H04B17/345 , H04B17/382 , H04L5/0032 , H04L5/0035
摘要： A downlink cooperative multi-point (CoMP) framework of a wireless communication system reduces inter-node interference and increases channel gain by scheduling a user equipment (UE) based on improved interference estimates and gain estimates. The UE computes a gain scaling factor (μ) based on theoretical gain and actual gain for each available scheduling scenario and transmits the gain scaling factors to an anchor node of the UE's radio reporting set (RRS). The anchor node computes an internal scaling factor (ν) based on the received gain scaling factors (μ) to estimate an actual gain for the scheduling scenarios. The UE also periodically transmits quantized interference estimates to the anchor node. The anchor node predicts a rate for the scheduling scenarios and schedules the UE based on the internal scaling factor (ν), the gain scaling factors (μ), and the interference estimates.
摘要翻译：无线通信系统的下行链路协作多点（CoMP）框架通过基于改进的干扰估计和增益估计调度用户设备（UE）来减少节点间干扰并增加信道增益。 UE基于每个可用调度场景的理论增益和实际增益来计算增益比例因子（mu），并将增益缩放因子发送到UE的无线电报告集（RRS）的锚节点。锚节点基于接收的增益比例因子（μ）计算内部缩放因子（nu），以估计调度场景的实际增益。 UE还周期性地向锚节点发送量化的干扰估计。锚节点根据内部缩放因子（nu），增益比例因子（mu）和干扰估计来预测调度方案的速率并调度UE。

19. 发明授权

US08509194B2 Dirty paper coding and reference signal design 失效
标题翻译：脏纸编码和参考信号设计
公开(公告)号：US08509194B2
公开(公告)日：2013-08-13
申请号：US12912267
申请日：2010-10-26
申请人： Alexei Yurievitch Gorokhov , Ravi Palanki
发明人： Alexei Yurievitch Gorokhov , Ravi Palanki
IPC分类号： H04B7/216
CPC分类号： H04L25/03343 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L27/2613 , H04L2025/03426
摘要： A method of wireless communication includes receiving a signal comprising an encoded downlink reference signal (DL-RS) modified by an effective channel. The encoded DL-RS is encoded based on crosstalk interference. The method further includes estimating the effective channel.
摘要翻译：一种无线通信方法包括：接收由有效信道修改的编码下行链路参考信号（DL-RS）的信号。编码的DL-RS基于串扰干扰进行编码。该方法还包括估计有效信道。

20. 发明授权

US08483168B2 Serving base station selection in a wireless communication network 有权
标题翻译：在无线通信网络中提供基站选择
公开(公告)号：US08483168B2
公开(公告)日：2013-07-09
申请号：US13556094
申请日：2012-07-23
申请人： Tingfang Ji , Aamod Dinkar Khandekar , Naga Bhushan , Alexei Yurievitch Gorokhov , Avneesh Agrawal
发明人： Tingfang Ji , Aamod Dinkar Khandekar , Naga Bhushan , Alexei Yurievitch Gorokhov , Avneesh Agrawal
IPC分类号： H04W4/00 , H04B7/185
CPC分类号： H04W36/0083 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146
摘要： Techniques for selecting a serving base station for a terminal in a wireless communication network are described. In one design, multiple candidate base stations for the terminal may be identified, with each candidate base station being a candidate for selection as the serving base station for the terminal. The multiple candidate base stations may include base stations with different transmit power levels and/or may support interference mitigation. One of the multiple candidate base stations may be selected as the serving base station. In one design, the serving base station may be selected based on at least one metric for each candidate base station. The at least one metrics may be for pathloss, effective transmit power, effective geometry, projected data rate, control channel reliability, network utility, etc. The selected candidate base station may have a lower SINR than a highest SINR among the multiple candidate base stations.
摘要翻译：描述了用于在无线通信网络中为终端选择服务基站的技术。在一种设计中，可以识别用于终端的多个候选基站，其中每个候选基站是用于选择的候选作为终端的服务基站。多个候选基站可以包括具有不同发射功率电平的基站和/或可以支持干扰减轻。可以选择多个候选基站中的一个作为服务基站。在一种设计中，可以基于每个候选基站的至少一个度量来选择服务基站。所述至少一个度量可以用于路径损耗，有效发射功率，有效几何，投影数据速率，控制信道可靠性，网络效用等。所选择的候选基站可以具有比多个候选基站中的最高SINR更低的SINR 。

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