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    Persistent interference mitigation in a wireless communication
    1.
    发明授权
    Persistent interference mitigation in a wireless communication 有权
    无线通信中的持续干扰减轻

    公开(公告)号：US09125163B2

    公开(公告)日：2015-09-01

    申请号：US12262576

    申请日：2008-10-31

    申请人： Ravi Palanki ,  Aamod Khandekar ,  Naga Bhushan

    发明人： Ravi Palanki ,  Aamod Khandekar ,  Naga Bhushan

    IPC分类号： H04B1/00 ,  H04W52/32 ,  H04W52/24 ,  H04W72/08 ,  H04B7/06 ,  H04W72/04

    CPC分类号： H04W74/0816 ,  H04B7/0617 ,  H04L5/0048 ,  H04W52/241 ,  H04W52/325 ,  H04W72/0426 ,  H04W72/046 ,  H04W72/08 ,  H04W72/082 ,  H04W72/14 ,  H04W88/02 ,  H04W88/08

    摘要： Techniques for transmitting data with persistent interference mitigation in a wireless communication system are described. A station (e.g., a base station or a terminal) may observe high interference and may send a request to reduce interference to interfering stations. The request may be valid for a time period covering multiple response periods. Each interfering station may grant or dismiss the request in each response period, may dismiss the request by transmitting at full power, and may grant the request by transmitting at lower than full power. The station may receive a response from each interfering station indicating grant or dismissal of the request by that interfering station in each response period. The station may estimate SINR based on the response received from each interfering station and may exchange data with another station based on the estimated SINR. Persistent interference mitigation may reduce signaling overhead and improve resource utilization and performance.

    摘要翻译： 描述了在无线通信系统中传输具有持续干扰减轻的数据的技术。 站（例如，基站或终端）可以观察到高干扰，并且可以发送减少对干扰站的干扰的请求。 该请求可以在覆盖多个响应周期的时间段内有效。 每个干扰站可以在每个响应周期中授权或者解除请求，可以通过全功率发射来解除请求，并且可以以低于全功率的方式发送请求。 站点可以从每个干扰站接收指示在每个响应周期中该干扰站的请求的授权或解除的响应。 该站可以基于从每个干扰站接收到的响应估计SINR，并且可以基于估计的SINR与另一个站交换数据。 持续的干扰减轻可以减少信令开销并提高资源利用率和性能。

    Preamble design for a wireless signal
    2.
    发明授权
    Preamble design for a wireless signal 有权
    无线信号的前缀设计

    公开(公告)号：US08918112B2

    公开(公告)日：2014-12-23

    申请号：US12260861

    申请日：2008-10-29

    申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

    发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

    IPC分类号： H04W72/00 ,  H04W48/08 ,  H04W8/26 ,  H04W36/30 ,  H04W48/16

    CPC分类号： H04W48/08 ,  H04W8/26 ,  H04W36/30 ,  H04W48/16

    摘要： Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks.

    摘要翻译： 本文描述了在异构无线接入点（AP）环境中的无线通信的管理。 作为示例，空中消息的系统数据可以被配置为包括标识不同类型的发送基站的信息。 在一些方面，信息可以包括基站的接入类型和/或用于区分大量其他基站中的基站的扇区ID。 根据其他方面，信息可以包括为特定类型的基站指定的无线信道资源，或者由发射基站消隐，以便于对这些资源进行干扰减少。 通过采用这里公开的无线通信管理的方面，可以在大型异构AP网络中影响高效可靠的通信。

    Short-term interference mitigation in a wireless communication system
    3.
    发明授权
    Short-term interference mitigation in a wireless communication system 有权
    无线通信系统中的短期干扰减轻

    公开(公告)号：US08825046B2

    公开(公告)日：2014-09-02

    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： H04W4/00 ,  H04B7/00

    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。

    Resource allocation and mapping in a wireless communication system
    4.
    发明授权
    Resource allocation and mapping in a wireless communication system 有权
    无线通信系统中的资源分配和映射

    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。

    Preamble design for a wireless signal
    5.
    发明授权
    Preamble design for a wireless signal 有权
    无线信号的前缀设计

    公开(公告)号：US09264976B2

    公开(公告)日：2016-02-16

    申请号：US12260856

    申请日：2008-10-29

    申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

    发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Naga Bhushan ,  Ravi Palanki ,  Ashwin Sampath ,  Avneesh Agrawal

    IPC分类号： H04W48/08

    CPC分类号： H04W48/08

    摘要： Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks.

    摘要翻译： 本文描述了在异构无线接入点（AP）环境中的无线通信的管理。 作为示例，空中消息的系统数据可以被配置为包括标识不同类型的发送基站的信息。 在一些方面，信息可以包括基站的接入类型和/或用于区分大量其他基站中的基站的扇区ID。 根据其他方面，信息可以包括为特定类型的基站指定的无线信道资源，或者由发射基站消隐，以便于对这些资源进行干扰减少。 通过采用这里公开的无线通信管理的方面，可以在大型异构AP网络中影响高效可靠的通信。

    Interference reduction request in a wireless communication system
    7.
    发明授权
    Interference reduction request in a wireless communication system 有权
    无线通信系统中的干扰减少请求

    公开(公告)号：US08843069B2

    公开(公告)日：2014-09-23

    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： H04W28/00 ,  H04W52/24 ,  H04B17/00 ,  H04B7/06

    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。

    PREAMBLE DESIGN FOR A WIRELESS SIGNAL
    10.
    发明申请
    PREAMBLE DESIGN FOR A WIRELESS SIGNAL 有权
    无线信号的前置设计

    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。