公开(公告)号：US09094173B2

公开(公告)日：2015-07-28

申请号：US12144969

申请日：2008-06-24

申请人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov ,  Mohammad J. Borran (Jaber)

发明人： Rajat Prakash ,  Aamod Khandekar ,  Alexei Gorokhov ,  Mohammad J. Borran (Jaber)

IPC分类号： H04W4/00 ,  H04L1/00 ,  H04W36/00 ,  H04L1/16 ,  H04L1/18 ,  H04W28/04

CPC分类号： H04L1/0061 ,  H04L1/1671 ,  H04L1/1829 ,  H04W28/04 ,  H04W36/0055

摘要： Systems and methodologies are described that facilitate recovering from error due to false detection of completion signals at an access terminal. An access terminal specific request signal can be sent to a target base station to initiate handoff or semi-connected state exit. A completion signal can be transferred in response to the access terminal specific request signal. To mitigate errors stemming from false detection of the completion signal at the access terminal, forward link and reverse link confirmation signals can be transferred to confirm successful handoff or connected state re-entry completion. For example, the access terminal can determine handoff or re-entry to be successful when a forward link confirmation signal is detected prior to expiration of a timer. Moreover, the forward link and reverse link confirmation signals can each include more CRC bits as compared to a number of CRC bits included in the completion signal.

摘要翻译： 描述了系统和方法，其便于由于在接入终端处的完成信号的错误检测而从错误中恢复。 可以将接入终端特定请求信号发送到目标基站以启动切换或半连接状态退出。 可以响应于接入终端特定请求信号来传送完成信号。 为了减轻由接入终端的完成信号的错误检测引起的错误，可以传送前向链路和反向链路确认信号，以确认成功切换或连接状态重新进入完成。 例如，当在定时器期满之前检测到前向链路确认信号时，接入终端可以确定切换或重新进入成功。 此外，与包括在完成信号中的CRC比特数相比，前向链路和反向链路确认信号可以各自包括更多的CRC比特。

公开(公告)号：US08761032B2

公开(公告)日：2014-06-24

申请号：US12163818

申请日：2008-06-27

申请人： Dexu Lin ,  Alexei Gorokhov ,  Aamod Khandekar ,  Ravi Palanki

发明人： Dexu Lin ,  Alexei Gorokhov ,  Aamod Khandekar ,  Ravi Palanki

IPC分类号： H04L12/26 ,  H04W24/02 ,  H04L1/00

CPC分类号： H04W24/02 ,  H04L1/0004 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0053 ,  H04W72/04 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

摘要： Systems and methodologies are described that facilitate wireless network transmitters blanking or reducing power on portions of bandwidth reserved for control information transmission. This mitigates interference from disparate transmitters. Furthermore, the control information portion can be divided into a plurality of OFDM tiles that are reusable by transmitters for transmitting the control information. In this regard, interference between transmitters is additionally mitigated as the transmitters can multiplex the control information over a plurality of tiles increasing the chance that at least a portion of the tiles are not interfered. The control information can be decoded by the receivers from the portion of tiles with a low probability of interference.

摘要翻译： 描述了系统和方法，其促进无线网络发射机消隐或减少为控制信息传输预留的带宽部分上的功率。 这减轻了不同发射机的干扰。 此外，控制信息部分可以被划分为多个OFDM瓦片，其可由用于发送控制信息的发射机重用。 在这方面，发射机之间的干扰额外减轻，因为发射机可以在多个瓦片上复用控制信息，从而增加至少一部分瓦片不被干扰的机会。 控制信息可以由来自具有低干扰概率的瓦片部分的接收器解码。

公开(公告)号：US08670777B2

公开(公告)日：2014-03-11

申请号：US11849595

申请日：2007-09-04

申请人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Alexei Gorokhov ,  Aamod Khandekar ,  Tingfang Ji ,  Arumugam Chendamarai Kannan

IPC分类号： H04W72/00

CPC分类号： H04W72/082

摘要： Systems and methods that facilitate management of interference and communication resources are provided. A differential approach is devised in which other-sector interference (OSI) and communication resources are managed by adjusting an offset (delta) value associated with the resources in response to receiving an indication of other-sector interference. An OSI indication can be issued based on a short and a long time scale, and effective interference metrics over time-frequency resources. The adjusted delta value is communicated to a serving access point, which reassigns communication resources in order to mitigate other-sector interference.

摘要翻译： 提供了便于管理干扰和通信资源的系统和方法。 设计出差分方法，其中响应于接收到其他扇区干扰的指示，通过调整与资源相关联的偏移量（delta）值来管理其他扇区干扰（OSI）和通信资源。 可以基于短时间和长时间尺度发出OSI指示，并且可以根据时间 - 频率资源发出有效的干扰度量。 经调整的增量值被传送到服务接入点，服务接入点重新分配通信资源以便减轻其他扇区干扰。

公开(公告)号：US08630241B2

公开(公告)日：2014-01-14

申请号：US12441109

申请日：2007-10-23

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Michael Mao Wang

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Michael Mao Wang

IPC分类号： H04J4/00

CPC分类号： H04L27/261 ,  H04L5/023 ,  H04L5/14 ,  H04L5/16

摘要： Superframe preamble structures for wireless communication systems are provided. The preamble can include system determination information, which can improve acquisition performance. The superframe structures can allow efficient determination of flexible parameters that determine preamble structure. The superframe structures can also facilitate quick paging capacity to scale with bandwidth.

摘要翻译： 提供了用于无线通信系统的超帧前同步码结构。 前导码可以包括可以提高采集性能的系统确定信息。 超帧结构可以有效地确定确定前导码结构的灵活参数。 超帧结构还可以促进快速寻呼容量，以扩展带宽。

公开(公告)号：US08457315B2

公开(公告)日：2013-06-04

申请号：US11968636

申请日：2008-01-02

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Mohammad J. Borran ,  Rajat Prakash

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Mohammad J. Borran ,  Rajat Prakash

IPC分类号： H04L29/06

CPC分类号： H04B1/7156 ,  H04J13/10 ,  H04L27/261 ,  H04L27/2613

摘要： Techniques for transmitting pilot and traffic data are described. In one aspect, a terminal may scramble its pilot with a scrambling sequence generated based on a set of static and dynamic parameters. The static parameter(s) have fixed value for an entire communication session for the terminal. The dynamic parameter(s) have variable value during the communication session. The terminal may generate a scrambling sequence by hashing the set of parameters to obtain a seed and initializing a PN generator with the seed. The terminal may then generate the pilot based on the scrambling sequence. In another aspect, the terminal may use different scrambling sequences for pilot and traffic data. A first scrambling sequence may be generated based on a first set of parameters and used to generate the pilot. A second scrambling sequence may be generated based on a second set of parameters and used to scramble traffic data.

摘要翻译： 描述用于发送导频和业务数据的技术。 在一个方面，终端可以使用基于一组静态和动态参数产生的加扰序列来加扰其导频。 静态参数对于终端的整个通信会话具有固定值。 动态参数在通信会话期间具有变量值。 终端可以通过散列参数集来获得种子并用种子初始化PN发生器来产生加扰序列。 然后终端可以基于加扰序列生成导频。 在另一方面，终端可以对导频和业务数据使用不同的加扰序列。 可以基于第一组参数生成第一加扰序列，并且用于产生导频。 可以基于第二组参数生成第二加扰序列，并用于加扰业务数据。

公开(公告)号：US08442572B2

公开(公告)日：2013-05-14

申请号：US11848865

申请日：2007-08-31

申请人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

IPC分类号： H04B7/185 ,  H04B7/00

CPC分类号： H04W24/02 ,  H04W52/16 ,  H04W52/243 ,  H04W52/44

摘要： Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.

摘要翻译： 描述了提供用于在无线通信系统中执行基于增量的功率控制和干扰管理的调整的技术的系统和方法。 在预定的静默期之后或在接收到来自相邻接入点的干扰的指示之后，终端可以利用本文所述的一个或多个基于增量的功率控制技术参与反向链路传输。 可以通过开环投影来计算增量值，基于可以增加或减少诸如带宽和/或发射功率的传输资源来管理由终端引起的干扰。 来自终端的增量值，其他反馈和/或由终端引起的干扰的指示也可以作为反馈传送到服务接入点，以允许接入点为终端分配传输资源。

公开(公告)号：US08396013B2

公开(公告)日：2013-03-12

申请号：US11848842

申请日：2007-09-06

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Ravi Palanki

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Ravi Palanki

IPC分类号： H04B1/56

CPC分类号： H04B7/2656

摘要： Systems and methodologies are described that provide support for signal acquisition in wireless communication systems that utilize half-duplex communication in the presence of asynchronous sectors. Forward link and reverse link superframes can be structured such that a given frame position in a superframe alternates between forward link communication and reverse link communication for a particular half-duplex interlace. More particularly, an odd number of frames can be grouped into respective forward link and reverse link superframes, from which frames can be assigned to a first half-duplex interlace and a second half-duplex interlace in an alternating fashion. By varying the communication link used by a half-duplex interlace at a given frame location, terminals operating on a single half-duplex interlace can detect asynchronously operating sectors irrespective of the transmission timeline of such sectors.

摘要翻译： 描述了在存在异步扇区的情况下利用半双工通信的无线通信系统中的信号获取的支持的系统和方法。 可以构造前向链路和反向链路超帧，使得超帧中的给定帧位置在特定半双工交错的前向链路通信和反向链路通信之间交替。 更具体地，奇数帧可以被分组成相应的前向链路和反向链路超帧，从该帧可以以交替的方式将帧分配给第一半双工交错和第二半双工交错。 通过改变在给定帧位置处的半双工交错使用的通信链路，在单个半双工交错上操作的终端可以检测异步操作扇区，而与这些扇区的传输时间线无关。

公开(公告)号：US08305999B2

公开(公告)日：2012-11-06

申请号：US11969200

申请日：2008-01-03

申请人： Ravi Palanki ,  Alexei Gorokhov ,  Aamod Khandekar ,  Naga Bhushan

发明人： Ravi Palanki ,  Alexei Gorokhov ,  Aamod Khandekar ,  Naga Bhushan

IPC分类号： H04B7/216

CPC分类号： H04W72/04 ,  H04B1/692 ,  H04B1/7143 ,  H04L5/0012 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0055 ,  H04L27/0008

摘要： Techniques for allocating and mapping resources in a wireless communication system are described. The system may use hop-ports to facilitate allocation and use of subcarriers. In one aspect, the hop-ports may be partitioned into multiple subzones, with each subzone including a configurable number of hop-ports. The hop-ports within each subzone may be permuted or shuffled based on a permutation function. After permutation, the hop-ports in all subzones may be mapped to the subcarriers based on local or global hopping. In another aspect, a set of hop-ports may be mapped to a set of subcarriers. A hop-port may be mapped to an unavailable subcarrier and may then be remapped to another available subcarrier. In yet another aspect, a set of hop-ports may be mapped to a set of subcarriers distributed (e.g., evenly) across all subcarriers but avoiding subcarriers in a reserved zone.

摘要翻译： 描述了用于在无线通信系统中分配和映射资源的技术。 系统可以使用跳转端口来促进子载波的分配和使用。 在一个方面，跳跃端口可以被划分成多个子区域，每个子区域包括可配置数量的跳接口。 基于置换功能，每个子区域内的跳转口可以被排列或混洗。 在排列之后，所有子区域中的跳跃端口可以基于本地或全局跳频映射到子载波。 在另一方面，一组跳跃端口可以映射到一组子载波。 跳跃端口可以被映射到不可用的子载波，然后可以重新映射到另一个可用的子载波。 在另一方面，一组跳跃端口可以被映射到跨所有子载波分布（例如，均匀）但是避开保留区域中的子载波的一组子载波。

公开(公告)号：US08295252B2

公开(公告)日：2012-10-23

申请号：US11750215

申请日：2007-05-17

申请人： Alexei Gorokhov ,  Aamod Khandekar

发明人： Alexei Gorokhov ,  Aamod Khandekar

IPC分类号： H04B7/212

CPC分类号： H04W72/1252 ,  H04W52/281 ,  H04W52/322 ,  H04W52/343 ,  H04W52/367

摘要： Systems and methodologies are described that provide interlace-based scheduling for control channels in a wireless communication system. One or more control channels for communication between a base station and a mobile terminal in the wireless communication system may be scheduled on one or more frame interlaces in the system based on one or more conditions of each frame interlace in the system. These conditions may include overhead balance between the frame interlaces, processing timeline optimization for the frame interlaces at the scheduling base station, and the desirability of discontinuous transmission (DTX) at a mobile terminal.

摘要翻译： 描述了为无线通信系统中的控制信道提供基于交织的调度的系统和方法。 基于系统中的每个帧交错的一个或多个条件，可以在系统中的一个或多个帧交织上调度用于无线通信系统中的基站和移动终端之间的通信的一个或多个控制信道。 这些条件可以包括帧交织之间的开销平衡，在调度基站处的帧交织的处理时间线优化以及在移动终端处的不连续传输（DTX）的可取性。

公开(公告)号：US20120224502A1

公开(公告)日：2012-09-06

申请号：US13473229

申请日：2012-05-16

申请人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad J. Borran

发明人： Alexei Gorokhov ,  Aamod Khandekar ,  Tamer Kadous ,  Mohammad J. Borran

IPC分类号： H04W52/24 ,  H04W24/00

CPC分类号： H04W52/16 ,  H04W52/146 ,  H04W52/241 ,  H04W52/243 ,  H04W52/244 ,  H04W52/325 ,  H04W52/40

摘要： Techniques for controlling transmit power of a terminal are described. The terminal may send a first transmission (e.g., for pilot or signaling) on the reverse link, receive feedback (e.g., a power control command or an erasure indicator) for the first transmission, and adjust a reference power level based on the feedback. The terminal may also receive interference information and possibly other parameters such as a pilot quality indicator (PQI), an offset factor, and a boost factor from a sector. The terminal may determine transmit power for a second transmission to the sector based on the interference information, the reference power level, and/or the other parameters. The terminal may receive the feedback from one sector and may send the second transmission with CDMA or OFDMA to the same sector or a different sector.

摘要翻译： 描述用于控制终端的发射功率的技术。 终端可以在反向链路上发送第一传输（例如，用于导频或信令），接收用于第一传输的反馈（例如，功率控制命令或擦除指示符），并且基于反馈来调整参考功率电平。 终端还可以从扇区接收干扰信息和可能的其它参数，例如导频质量指示符（PQI），偏移因子和增强因子。 终端可以基于干扰信息，参考功率电平和/或其他参数来确定对扇区的第二传输的发射功率。 终端可以从一个扇区接收反馈，并且可以将具有CDMA或OFDMA的第二传输发送到同一扇区或不同扇区。