公开(公告)号：US08867495B2

公开(公告)日：2014-10-21

申请号：US12724915

申请日：2010-03-16

申请人： Amir Farajidana ,  Alexei Gorokhov ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

发明人： Amir Farajidana ,  Alexei Gorokhov ,  Kapil Bhattad ,  Ravi Palanki ,  Juan Montojo

IPC分类号： H04W4/00 ,  H04B7/06 ,  H04B7/04 ,  H04W72/04 ,  H04L25/03

CPC分类号： H04B7/0632 ,  H04B7/0417 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/0406

摘要： A method for generating feedback data is described. A downlink message is received from a base station. It is determined whether full channel reciprocity or partial channel reciprocity is enabled at a transmitter. A mode for feedback data generation is determined. Feedback data is generated using the determined mode. The feedback data includes beamforming information. The feedback data is transmitted to the base station. The feedback data may include a channel quality indicator (CQI) and a rank.

摘要翻译： 描述用于产生反馈数据的方法。 从基站接收下行链路消息。 确定发射机是否启用全信道互易或部分信道互易。 确定反馈数据生成的模式。 使用确定的模式生成反馈数据。 反馈数据包括波束成形信息。 将反馈数据发送到基站。 反馈数据可以包括信道质量指示符（CQI）和秩。

公开(公告)号：US08787183B2

公开(公告)日：2014-07-22

申请号：US12620141

申请日：2009-11-17

申请人： Siddhartha Mallik ,  Alexei Gorokhov

发明人： Siddhartha Mallik ,  Alexei Gorokhov

IPC分类号： G01R31/08 ,  H04L25/02 ,  H04L1/00 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04L1/0035 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0639 ,  H04L25/0242

摘要： Techniques for using multiple description codes (MDC) for channel feedback to improve channel estimation accuracy are described. A receiver may obtain an initial/measured channel vector for a communication channel. The receiver may select a codebook in a set of codebooks for quantizing the initial channel vector. Each codebook may include a different set of channel vectors/codewords. Different codebooks may be selected in different reporting intervals. The receiver may select a channel vector in the selected codebook, and the selected channel vector may have (i) a largest correlation with a normalized channel vector or (ii) a smallest distance to the initial channel vector. The receiver may send the selected channel vector and possibly the selected codebook to a transmitter. The transmitter may receive the selected/reported channel vectors from the receiver in different reporting intervals and may derive a final channel vector for the communication channel based on the reported channel vectors.

摘要翻译： 描述了使用多个描述码（MDC）进行信道反馈以提高信道估计精度的技术。 接收机可以获得通信信道的初始/测量信道向量。 接收机可以在一组码本中选择用于量化初始信道向量的码本。 每个码本可以包括不同的信道向量/码字集合。 可以在不同的报告间隔中选择不同的码本。 接收机可以选择所选码本中的信道向量，并且所选择的信道向量可以具有（i）与归一化信道向量的最大相关性或（ii）到初始信道向量的最小距离。 接收机可以将所选择的信道向量和可能的所选码本发送到发射机。 发射机可以在不同的报告间隔中从接收机接收所选/报告的信道向量，并且可以基于报告的信道向量导出通信信道的最终信道向量。

公开(公告)号：US08693405B2

公开(公告)日：2014-04-08

申请号：US11261837

申请日：2005-10-27

申请人： Tingfang Ji ,  Dhananjay Ashok Gore ,  Alexei Gorokhov ,  Min Dong ,  Avneesh Agrawal

发明人： Tingfang Ji ,  Dhananjay Ashok Gore ,  Alexei Gorokhov ,  Min Dong ,  Avneesh Agrawal

IPC分类号： H04B7/00

CPC分类号： H04W72/06 ,  H04B1/713 ,  H04B7/026 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023

摘要： A method for allocating resources in a wireless communications environment comprises receiving a mapping between a first hop-port and frequency range, and determining whether to map a second access terminal to a second hop-port that is mapped to at least the same frequency range during a substantially similar instance in time, the determination made as a function of characteristics relating to a first access terminal associated with the first hop-port. The method can further include determining that the first access terminal is a candidate for employing Space-Division Multiple Access (SDMA), and mapping the second-hop port and associating the second access terminal with the second hop-port when the second access terminal is also a candidate for employing SDMA.

摘要翻译： 一种用于在无线通信环境中分配资源的方法包括：接收第一跳跃端口和频率范围之间的映射，以及确定是否将第二接入终端映射到映射到至少相同频率范围的第二跳频端口 基本相似的时间实例，根据与与第一跳跃端口相关联的第一接入终端的特性的函数进行确定。 该方法还可以包括确定第一接入终端是采用空分多址（SDMA）的候选者，并且当第二接入终端是第二接入终端时，映射第二跳接口并将第二接入终端与第二跳接口相关联 也是采用SDMA的候选人。

公开(公告)号：US08687542B2

公开(公告)日：2014-04-01

申请号：US11437449

申请日：2006-05-18

申请人： Alexei Gorokhov

发明人： Alexei Gorokhov

IPC分类号： H04B7/204 ,  H04B7/212

CPC分类号： H04W72/042

摘要： Methods and apparatuses are disclosed that provide conditional assignments to access terminals over resources assigned to other access terminals. Further, methods and apparatuses are disclosed for processing resources to determine whether an access terminal should utilize resources that have bee conditionally assigned.

摘要翻译： 公开了通过分配给其他接入终端的资源为接入终端提供条件分配的方法和装置。 此外，公开了用于处理资源以确定接入终端是否应当利用有条件分配的资源的方法和装置。

公开(公告)号：US08638759B2

公开(公告)日：2014-01-28

申请号：US12362289

申请日：2009-01-29

申请人： Tingfang Ji ,  Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov

发明人： Tingfang Ji ,  Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov

IPC分类号： H04W52/22

CPC分类号： H04W36/0083 ,  H04W36/20 ,  H04W36/22 ,  H04W36/30 ,  H04W36/36 ,  H04W48/20 ,  H04W84/045 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

摘要： Systems and methodologies are described that facilitate selecting and/or reselecting one or more access points, related cells, or carriers based at least in part on calculating an energy efficiency related to the access points. In particular, the energy efficiency can be based at least in part on an estimated pathloss and/or a level of interference related to communicating with the access points. Moreover, load parameters related to the access point can be received and evaluated in selecting and/or reselecting the access point. Thus, access points can be selected or reselected based on parameters other than forward link transmit power. In addition, pathloss and/or interference levels can be weighed based on access point type to prevent macrocell overloading.

摘要翻译： 描述了至少部分地基于计算与接入点相关的能量效率来促进选择和/或重新选择一个或多个接入点，相关小区或载波的系统和方法。 特别地，能量效率可以至少部分地基于与与接入点通信相关的估计路径损耗和/或干扰水平。 此外，可以在选择和/或重新选择接入点时接收和评估与接入点相关的负载参数。 因此，可以基于除了前向链路发送功率之外的参数来选择或重新选择接入点。 此外，可以基于接入点类型来称量路径损耗和/或干扰电平，以防止宏单元过载。

公开(公告)号：US08611284B2

公开(公告)日：2013-12-17

申请号：US11370639

申请日：2006-03-07

申请人： Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov ,  Edward Harrison Teague

发明人： Avneesh Agrawal ,  Aamod Khandekar ,  Alexei Gorokhov ,  Edward Harrison Teague

IPC分类号： H04Q1/00

CPC分类号： H04W72/042 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0096 ,  H04W72/0486

摘要： Systems and methodologies are described that facilitate dynamically supplementing or decrementing resource assignments to mobile devices in a wireless network environment without requiring transmission of replacement assignments. Supplemental assignments can be generated based on information related to mobile device need and resource availability. Moreover, resource assignments can be persisted for a mobile device.

摘要翻译： 描述了促进在无线网络环境中动态地补充或递减对移动设备的资源分配的系统和方法，而不需要传输替换分配。 可以根据与移动设备需求和资源可用性相关的信息生成补充分配。 此外，可以为移动设备持续资源分配。

公开(公告)号：US08477808B2

公开(公告)日：2013-07-02

申请号：US12091521

申请日：2006-10-27

申请人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

发明人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov

IPC分类号： H04B3/10

CPC分类号： H04W52/0235 ,  H04B17/318 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0675 ,  H04L27/2647 ,  H04L41/0803 ,  H04L41/083 ,  H04L41/0869 ,  H04W24/10 ,  H04W88/02 ,  Y02D30/32 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

摘要： A method and apparatus of assigning selected interlace mode, the method comprising generating SelectedInterlaceAssignment message comprising SelectedInterlaceAssignment message comprising an 8 bit Message ID field, a 12 bit PilotPN field, a 1 bit SelectedInterlacesEnabled field, a 4 bit NumAssignedInterlaces field, and a 3 bit InterlaceID field, wherein, the PilotPN field is set to a PilotPN of the sector that sends SelectedInterlace Assignment message, the NumAssignedInterlaces field is set to the number of assigned interlaces, the InterlaceID field is set to an interlace assigned to the access terminal for SelectedInterlace operation and transmitting the generated SelectedInterlaceAssignment message over an OFDM communication link.

摘要翻译： 一种分配选择的隔行扫描模式的方法和装置，所述方法包括：生成SelectedInterlaceAssignment消息，该消息包括SelectedInterlaceAssignment消息，该消息包括8位消息ID字段，12位PilotPN字段，1位SelectedInterlacesEnabled字段，4位NumAssignedInterlaces字段和3位InterlaceID 其中，PilotPN字段被设置为发送SelectedInterlace Assignment消息的扇区的PilotPN，将NumAssignedInterlaces字段设置为所分配的交织数，将InterlaceID字段设置为分配给用于SelectedInterlace操作的接入终端的交错， 通过OFDM通信链路发送所生成的SelectedInterlaceAssignment消息。

公开(公告)号：US08433357B2

公开(公告)日：2013-04-30

申请号：US11968638

申请日：2008-01-02

申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Mohammad J. Barron

发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Mohammad J. Barron

IPC分类号： H04B7/00

CPC分类号： H04W52/243 ,  H04W52/146 ,  H04W52/16 ,  H04W52/247 ,  H04W52/362 ,  H04W52/60 ,  H04W72/08

摘要： Techniques for mitigating interference in a wireless communication system are described. In one design, a sector may determine multiple fast other sector interference (OSI) indications for multiple subzones, with each subzone corresponding to a different portion of the system bandwidth. At least one report may be generated for the multiple OSI indications, with each report including at least one OSI indication for at least one subzone. Each report may be encoded to obtain code bits, which may then be mapped to a sequence of modulation symbols. A sequence of modulation symbols of zero values may be generated for each report with all OSI indications in the report set to zero to indicate lack of high interference in the corresponding subzones. This allows a report to be transmitted with zero power in a likely scenario. A regular OSI indication may also be determined for the system bandwidth and transmitted.

摘要翻译： 描述了用于减轻无线通信系统中的干扰的技术。 在一种设计中，扇区可以确定多个子区域的多个快速其他扇区干扰（OSI）指示，其中每个子区域对应于系统带宽的不同部分。 可以为多个OSI指示生成至少一个报告，每个报告包括至少一个子区域的至少一个OSI指示。 每个报告可以被编码以获得码位，然后可以将其映射到调制符号序列。 可以为每个报告生成零值的调制符号序列，其中报告中的所有OSI指示设置为零，以指示相应子区域中没有高干扰。 这允许在可能的情况下以零功率传输报告。 也可以为系统带宽确定常规的OSI指示并发送。

公开(公告)号：US08379578B2

公开(公告)日：2013-02-19

申请号：US11945559

申请日：2007-11-27

申请人： Alexei Gorokhov ,  Arnab Das ,  Aamod Khandekar ,  Junyi Li

发明人： Alexei Gorokhov ,  Arnab Das ,  Aamod Khandekar ,  Junyi Li

IPC分类号： H04W4/00 ,  H04B7/216

CPC分类号： H04W48/08 ,  H04B1/707 ,  H04B2201/70701 ,  H04L5/0016 ,  H04L5/0053 ,  H04W72/02

摘要： Systems and methodologies are described that facilitate communicating reverse link control information over OFDMA control channel(s) and CDMA control channel(s). Dedicated OFDMA control channel resources can be assigned to mobile device(s). Control information related to one or more logical control channels can be generated by a mobile device. Further, a physical control channel type (e.g., OFDMA control channel or a CDMA control channel) can be selected for sending the control information via the reverse link. For example, control information associated with periodic, logical control channels can be multiplexed and sent over the OFDMA control channel (e.g., utilizing the dedicated OFDMA control channel resources) while control information related to non-periodic, logical control channels can be transmitted over the CDMA control channel.

公开(公告)号：US08320339B2

公开(公告)日：2012-11-27

申请号：US13252405

申请日：2011-10-04

申请人： Min Dong ,  Alexei Gorokhov ,  Tingfang Ji

发明人： Min Dong ,  Alexei Gorokhov ,  Tingfang Ji

IPC分类号： H04B7/216

CPC分类号： H04W16/00 ,  H04B7/0408 ,  H04W16/28

摘要： A wireless communication system can implement beamforming across multiple omni-directional antennas to create beams at different spatial directions. The communication system can arrange the beams in sets, with each set arranged to provide substantially complete coverage over a predetermined coverage area. The communication system can arrange the multiple SDMA beam sets to support substantially complementary coverage areas, such that a main beam from a first set provides coverage to a weak coverage area of the second beam set. The wireless communication system assigns or otherwise allocates substantially orthogonal resources to each of the beam sets. The wireless communication system allocates resources to a communication link using a combination of beam sets and substantially orthogonal resources in order to provide improved coverage without a corresponding increase in interference.

摘要翻译： 无线通信系统可以实现跨多个全向天线的波束成形，以在不同的空间方向上创建波束。 通信系统可以将波束排列成一组，其中每个组被布置成在预定覆盖区域上提供基本上完整的覆盖。 通信系统可以布置多个SDMA波束组以支持实质上互补的覆盖区域，使得来自第一组的主波束向第二波束组的弱覆盖区域提供覆盖。 无线通信系统分配或以其他方式分配基本上正交的资源到每个波束组。 无线通信系统使用波束组和基本上正交的资源的组合向通信链路分配资源，以便提供改进的覆盖而不会相应地增加干扰。