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    Reverse link feedback for interference control in a wireless communication system
    1.
    发明授权
    Reverse link feedback for interference control in a wireless communication system 有权
    用于无线通信系统中的干扰控制的反向链路反馈

    公开(公告)号：US08295225B2

    公开(公告)日：2012-10-23

    申请号：US11848755

    申请日：2007-08-31

    申请人： Tingfang Ji ,  Rajat Prakash ,  Mohammad J. Borran ,  Alexei Gorokhov

    发明人： Tingfang Ji ,  Rajat Prakash ,  Mohammad J. Borran ,  Alexei Gorokhov

    IPC分类号： H04B7/185 ,  H04B17/02

    CPC分类号： H04W52/247 ,  H04W52/243 ,  H04W52/248

    摘要： Systems and methodologies are described that provide techniques for generating and utilizing reverse link feedback for interference management in a wireless communication system. Channel quality and/or interference data can be obtained by a terminal from a serving sector and one or more neighboring sectors, from which an interference-based headroom value can be computed that contains interference caused by the terminal to an allowable range. The interference-based headroom value can then be provided with power amplifier (PA) headroom feedback to the serving sector. Based on the provided feedback from the terminal, the serving sector can assign resources for use by the terminal in communication with the serving sector. Further, the serving sector may choose to honor or disregard a received interference-based power value based on quality of service and/or other system parameters.

    摘要翻译： 描述了提供用于在无线通信系统中生成和利用反向链路反馈用于干扰管理的技术的系统和方法。 信道质量和/或干扰数据可以由来自服务扇区和一个或多个相邻扇区的终端获得，从该终端可以计算包含由终端引起的干扰到允许范围的基于干扰的净空值。 然后可以向服务扇区提供功率放大器（PA）净空反馈的基于干扰的余量值。 基于提供的来自终端的反馈，服务扇区可以分配资源供终端与服务扇区进行通信。 此外，服务部门可以选择基于服务质量和/或其他系统参数来尊重或忽视接收到的基于干扰的功率值。

    REVERSE LINK FEEDBACK FOR INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION SYSTEM
    5.
    发明申请
    REVERSE LINK FEEDBACK FOR INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于无线通信系统干扰控制的反向链路反馈

    公开(公告)号：US20080175185A1

    公开(公告)日：2008-07-24

    申请号：US11848755

    申请日：2007-08-31

    申请人： Tingfang Ji ,  Rajat Prakash ,  Mohammad J. Borran ,  Alexei Gorokhov

    发明人： Tingfang Ji ,  Rajat Prakash ,  Mohammad J. Borran ,  Alexei Gorokhov

    IPC分类号： H04B7/185

    CPC分类号： H04W52/247 ,  H04W52/243 ,  H04W52/248

    摘要： Systems and methodologies are described that provide techniques for generating and utilizing reverse link feedback for interference management in a wireless communication system. Channel quality and/or interference data can be obtained by a terminal from a serving sector and one or more neighboring sectors, from which an interference-based headroom value can be computed that contains interference caused by the terminal to an allowable range. The interference-based headroom value can then be provided with power amplifier (PA) headroom feedback to the serving sector. Based on the provided feedback from the terminal, the serving sector can assign resources for use by the terminal in communication with the serving sector. Further, the serving sector may choose to honor or disregard a received interference-based power value based on quality of service and/or other system parameters.

    摘要翻译： 描述了提供用于在无线通信系统中生成和利用反向链路反馈用于干扰管理的技术的系统和方法。 信道质量和/或干扰数据可以由来自服务扇区和一个或多个相邻扇区的终端获得，从该终端可以计算包含由终端引起的干扰到允许范围的基于干扰的净空值。 然后可以向服务扇区提供功率放大器（PA）净空反馈的基于干扰的余量值。 基于提供的来自终端的反馈，服务扇区可以分配资源供终端与服务扇区进行通信。 此外，服务部门可以选择基于服务质量和/或其他系统参数来尊重或忽视接收到的基于干扰的功率值。

    Handoff selection for wireless communication systems
    6.
    发明授权
    Handoff selection for wireless communication systems 有权
    无线通信系统的切换选择

    公开(公告)号：US08676209B2

    公开(公告)日：2014-03-18

    申请号：US11761790

    申请日：2007-06-12

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

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

    IPC分类号： H04W36/00 ,  H04W4/00

    CPC分类号： H04W36/30 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2613 ,  H04W36/36

    摘要： Techniques for selecting serving sectors and performing handoff for a terminal on the forward and reverse links are described. The terminal may obtain pilot measurements for pilots transmitted on the forward link and may update an active set based on the pilot measurements. The terminal may send a transmission (e.g., for pilot, signaling, etc.) on the reverse link and may receive channel quality information indicative of reverse link channel quality for the terminal at multiple sectors in the active set. The transmission may include pilot, and the channel quality information from each sector may include a pilot carrier-over-thermal ratio (pCoT) determined by that sector based on the pilot. The terminal may select a serving sector based on the channel quality information, interference information, and/or other information and may send a request for handoff (e.g., via a signaling message an/or an access probe) to the selected serving sector.

    摘要翻译： 描述用于选择服务扇区并对前向和反向链路上的终端执行切换的技术。 终端可以获得在前向链路上发送的导频的导频测量，并且可以基于导频测量来更新活动集。 终端可以在反向链路上发送传输（例如，用于导频，信令等），并且可以在活动集中的多个扇区处接收指示终端的反向链路信道质量的信道质量信息。 传输可以包括导频，并且来自每个扇区的信道质量信息可以包括由该扇区基于导频确定的导频载波热传输比（pCoT）。 终端可以基于信道质量信息，干扰信息和/或其他信息来选择服务扇区，并且可以向所选择的服务扇区发送切换请求（例如，经由信令消息，或访问探测器）。

    PILOT TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM
    7.
    发明申请
    PILOT TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中的导频传输

    公开(公告)号：US20080165969A1

    公开(公告)日：2008-07-10

    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： H04L9/00 ,  H04K1/00

    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。

    Reverse link pilot transmission for a wireless communication system
    8.
    发明授权
    Reverse link pilot transmission for a wireless communication system 有权
    无线通信系统的反向链路导频传输

    公开(公告)号：US09088389B2

    公开(公告)日：2015-07-21

    申请号：US11761798

    申请日：2007-06-12

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

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

    IPC分类号： H04W4/00 ,  H04B7/216 ,  H04L12/16 ,  H04J11/00 ,  H04L5/00 ,  H04B1/7075 ,  H04L25/03 ,  H04L25/02 ,  H04L27/26

    CPC分类号： H04L5/0016 ,  H04B1/7075 ,  H04L5/0026 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2657

    摘要： Techniques to transmit pilot on a CDMA segment on the reverse link in a wireless communication system are described. A terminal generates a scrambling sequence based on its pilot information. The pilot information may be used for the entire duration of a call by the terminal and for all sectors with which the terminal communicates during the call. The terminal generates pilot symbols based on the scrambling sequence, maps the pilot symbols to the CDMA segment, generates OFDM symbols with the mapped pilot symbols, and sends the OFDM symbols to one or more sectors. A base station processes received OFDM symbols to obtain received symbols for the CDMA segment. The base station generates the scrambling sequence based on the pilot information for the terminal and processes the received symbols with the scrambling sequence to obtain at least one parameter (e.g., received signal strength) for the terminal.

    摘要翻译： 描述了在无线通信系统中在反向链路上的CDMA分段上发送导频的技术。 终端根据其导频信息产生加扰序列。 导频信息可以用于终端和呼叫期间终端通信的所有扇区的呼叫的整个持续时间。 终端基于加扰序列生成导频符号，将导频符号映射到CDMA分段，用映射的导频符号生成OFDM符号，并将OFDM符号发送到一个或多个扇区。 基站处理接收到的OFDM符号以获得CDMA段的接收符号。 基站根据终端的导频信息生成加扰序列，并用加扰序列处理接收到的符号，以获得终端的至少一个参数（例如接收信号强度）。

    Methods and systems for processing overhead reduction for control channel packets
    9.
    发明授权
    Methods and systems for processing overhead reduction for control channel packets 有权
    用于处理控制信道数据包开销降低的方法和系统

    公开(公告)号：US08374200B2

    公开(公告)日：2013-02-12

    申请号：US11768135

    申请日：2007-06-25

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

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

    IPC分类号： H04J3/24

    CPC分类号： H04L1/0045 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0078

    摘要： Various methods and systems receiving information from an access point over a wireless link in order to reduce processing and/or transmission overhead are disclosed. Such methods and systems may include the processing of a received packet using a descrambling operation on at least a portion of the packet's information based on a MAC-ID associated with an access terminal to produce at least a first processed packet, and determining whether the received packet is targeted to the access terminal based on the first processed packet.

    摘要翻译： 公开了通过无线链路从接入点接收信息以减少处理和/或传输开销的各种方法和系统。 这样的方法和系统可以包括基于与接入终端相关联的MAC-ID，使用对分组信息的至少一部分的解扰操作来处理接收到的分组，以产生至少第一处理分组，以及确定是否接收到 分组基于第一处理分组被定向到接入终端。

    Recovery from handoff error due to false detection of handoff completion signal at access terminal
    10.
    发明授权
    Recovery from handoff error due to false detection of handoff completion signal at access terminal 有权
    由于接入终端的切换完成信号的错误检测，从切换错误中恢复

    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。