公开(公告)号：US20090135761A1

公开(公告)日：2009-05-28

申请号：US12260826

申请日：2008-10-29

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

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

IPC分类号： H04W36/00

CPC分类号： H04W52/244 ,  H04B17/318 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0091 ,  H04W72/00 ,  H04W72/12 ,  H04W92/20

摘要： Providing for base station (BS) acquisition in semi-planned or unplanned wireless access networks is described herein. By way of example, a signal preamble can be dynamically allocated to wireless signal resources, such that the preamble is scheduled to different resource(s) across different cycles of the signal. Dynamic allocation can be pseudo-random, based on collision feedback, or determined by a suitable algorithm to mitigate collisions from a dominant interferer. In addition, dynamic scheduling can be particular to a type of BS to significantly reduce collisions from BSs of disparate types. In at least one aspect, a preamble resource can be sub-divided into multiple frequency sub-carrier tiles. Control channel information can be transmitted on each tile of a group of such tiles, further mitigating effects of a dominant interferer on a subset of the tile group.

摘要翻译： 本文描述了在半计划或非计划无线接入网络中提供基站（BS）采集。 作为示例，可以将信号前同步码动态地分配给无线信号资源，使得前导码被调度到跨越信号的不同周期的不同资源。 动态分配可以是伪随机的，基于碰撞反馈，或者由适当的算法确定，以减轻来自主要干扰源的冲突。 此外，动态调度对于一种类型的BS可以是特别的，以显着减少来自不同类型的BS的冲突。 在至少一个方面，前导码资源可以被细分为多个频率子载波瓦片。 可以在一组这样的瓦片的每个瓦片上发送控制信道信息，进一步减轻显着干扰源对瓦片组的子集的影响。

公开(公告)号：US08818285B2

公开(公告)日：2014-08-26

申请号：US12262022

申请日：2008-10-30

申请人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

发明人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC分类号： H04B15/00 ,  H04B1/00 ,  H04W52/34 ,  H04W52/24 ,  H04W52/32 ,  H04W52/28

CPC分类号： H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

摘要： Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may receive a message sent by a second station to request reduction of interference on at least one resource. In response to receiving the message, the first station may determine a first transmit power level to use for the at least one resource based on one or more factors such as a priority metric sent in the message, the buffer size at the first station, etc. The first station may send a power decision pilot on the at least one resource at a second transmit power level determined based on the first transmit power level.

摘要翻译： 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，第一站（例如，基站或终端）可以接收由第二站发送的消息以请求减少对至少一个资源的干扰。 响应于接收到消息，第一站可以基于一个或多个因素来确定用于至少一个资源的第一发射功率电平，诸如消息中发送的优先级度量，第一站的缓冲器大小等 第一站可以基于第一发射功率电平确定的第二发射功率电平在所述至少一个资源上发送功率决定导频。

公开(公告)号：US20120218943A1

公开(公告)日：2012-08-30

申请号：US13465943

申请日：2012-05-07

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

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

IPC分类号： H04W48/12

CPC分类号： H04W72/04 ,  H04B1/713 ,  H04B7/2621 ,  H04L1/1692 ,  H04L5/0053 ,  H04W52/146 ,  H04W52/16 ,  H04W52/243 ,  H04W52/247 ,  H04W52/362 ,  H04W52/60 ,  H04W72/08

摘要： Techniques for sending control information in a wireless communication system are described. A control segment may include L≧1 tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of S≧1 control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, S>1, and each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, S=1, and each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.

摘要翻译： 描述用于在无线通信系统中发送控制信息的技术。 控制段可以包括L≥1瓦片，并且每个瓦片可以包括多个传输单元。 可以将多个控制资源定义并映射到控制段的传输单元。 对于对称映射，可以形成多组S≥1个控制资源，并且每L批连续的S个控制资源组可以被映射到L个瓦片中相同位置处的S个传输单元。 对于局部映射，S> 1，并且每组S个控制资源可以被映射到一个瓦片中的S个相邻传输单元的簇。 对于分布式映射，S = 1，并且每个控制资源可以映射到一个瓦片中的一个传输单元。 对于分集，每个控制资源可以映射到至少一个瓦片中的多个（例如，三个）传输单元。

公开(公告)号：US20090197590A1

公开(公告)日：2009-08-06

申请号：US12261998

申请日：2008-10-30

申请人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

发明人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC分类号： H04W24/00 ,  H04W72/00

CPC分类号： H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

摘要： Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

摘要翻译： 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，服务基站可以向终端发送消息以触发短期干扰减轻。 作为响应，终端可以发送消息以请求至少一个干扰基站以减少对至少一个资源的干扰。 每个干扰基站可以确定要用于至少一个资源的发射功率电平，并且可以以该发射功率电平发送导频。 终端可以基于从至少一个干扰基站接收的至少一个导频来估计至少一个资源的信道质量。 终端可以向服务基站发送表示估计的信道质量的信息。 服务基站可以向终端发送至少一个资源上的数据传输。

公开(公告)号：US20090197538A1

公开(公告)日：2009-08-06

申请号：US12262013

申请日：2008-10-30

申请人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

发明人： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC分类号： H04B1/00

CPC分类号： H04W52/243 ,  H04B7/0617 ,  H04B17/382 ,  H04W52/247

摘要： Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may send a first message to at least one interfering station to request reduction of interference on at least one resource. The first station may send the first message in anticipation of receiving data on the at least one resource. An interfering station may receive the first message from the first station and may reduce interference on the at least one resource by reducing its transmit power and/or by steering its power in a direction different from the first station. The first station may thereafter receive data from a second station on the at least one resource. The techniques may be used for data transmission on the forward and reverse links.

摘要翻译： 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，第一站（例如，基站或终端）可以向至少一个干扰站发送第一消息，以请求减少对至少一个资源的干扰。 第一站可以发送第一消息以预期在至少一个资源上接收数据。 干扰站可以从第一站接收第一消息，并且可以通过减少其发射功率和/或通过在与第一站不同的方向上转向其功率来减少对至少一个资源的干扰。 此后，第一站可以在至少一个资源上从第二站接收数据。 这些技术可以用于前向和反向链路上的数据传输。

公开(公告)号：US20080101441A1

公开(公告)日：2008-05-01

申请号：US11852250

申请日：2007-09-07

申请人： Ravi Palanki ,  Siddartha Mallik ,  Petru Budianu ,  Alexei Gorokhov

发明人： Ravi Palanki ,  Siddartha Mallik ,  Petru Budianu ,  Alexei Gorokhov

IPC分类号： H04B1/707 ,  H04B1/69

CPC分类号： H04L5/0053 ,  H04L1/1692 ,  H04L5/0007

摘要： Techniques for transmitting signaling with localized spreading are described. In one design, a transmitter (e.g., a base station) spreads multiple signaling symbols to obtain multiple sets of output symbols and further maps the multiple sets of output symbols to multiple time frequency blocks. The spreading may be localized to each time frequency block. Prior to the spreading, the transmitter may scale the multiple signaling symbols with multiple gains determined based on the transmit power for these signaling symbols. The transmitter may scramble the scaled signaling symbols to obtain scrambled symbols and may spread the scrambled symbols to obtain the multiple sets of output symbols. The transmitter may map each set of output symbols to a respective time frequency block.

摘要翻译： 描述了用于发送具有局部扩展的信令的技术。 在一种设计中，发射机（例如，基站）扩展多个信令符号以获得多组输出符号，并将多组输出符号进一步映射到多个时间频率块。 扩展可以被定位到每个时间频率块。 在扩展之前，发射机可以根据这些信令符号的发射功率确定的多个增益来缩放多个信令符号。 发射机可以加密缩放的信令符号以获得加扰符号，并且可以扩展加扰符号以获得多组输出符号。 发射机可以将每组输出符号映射到相应的时间频率块。

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：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：US08023398B2

公开(公告)日：2011-09-20

申请号：US12021961

申请日：2008-01-29

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan

IPC分类号： H04J11/00

CPC分类号： H04J13/0048 ,  H04B2001/70935 ,  H04B2201/70707 ,  H04W36/08 ,  H04W48/16 ,  H04W74/0833

摘要： Aspects describe a Fast Hadamard Transform that is common to multiple mobile devices. A scrambled sequence produced by the Fast Hadamard Transform can be utilized to decode access-based handoff probes from multiple terminals within a wireless communications system. A Walsh Sequence can be scrambled with a common random sequence to produce a scrambled sequence. At least a portion of the scrambled sequence is included in an access probe.

摘要翻译： 方面描述了多个移动设备通用的快速Hadamard变换。 通过快速哈达玛变换产生的加扰序列可用于解码无线通信系统内多个终端的基于接入的切换探测。 沃尔什序列可以用公共随机序列加扰以产生加扰序列。 加扰序列的至少一部分被包括在访问探针中。

公开(公告)号：US20080161033A1

公开(公告)日：2008-07-03

申请号：US11848865

申请日：2007-08-31

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

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

IPC分类号： H04B7/06

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。