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    Method and apparatus for spectrally efficient link adaptation using HARQ in OFDMA systems
    3.
    发明授权
    Method and apparatus for spectrally efficient link adaptation using HARQ in OFDMA systems 有权
    在OFDMA系统中使用HARQ进行频谱高效链路适配的方法和装置

    公开(公告)号：US08514957B2

    公开(公告)日：2013-08-20

    申请号：US12935833

    申请日：2009-04-28

    申请人： Sairamesh Nammi ,  Shankar Venkatraman ,  Ashvin Chheda

    发明人： Sairamesh Nammi ,  Shankar Venkatraman ,  Ashvin Chheda

    IPC分类号： H04K1/10

    CPC分类号： H04W72/04 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0037

    摘要： A method to increase spectral efficiency in a communication system is described herein. The communication system includes at least one mobile station and is capable of transmitting messages encoded according to a plurality of available modulation coding schemes (“MCSs”). Each available MCS includes a modulation scheme and an effective coding rate. The MCSs are indexed according to increasing complexity. A signal-to-interference ratio (“SINR”) is determined which is sufficient to satisfy a predetermined frame error rate (“FER”). A first MCS and a corresponding amount of transmissions needed to satisfy the predetermined FER at the SINR using the first MCS are determined. The first MCS has a higher effective coding rate than a second MCS. The second MCS sufficiently satisfies the predetermined FER at the SINR in a single transmission. A message encoded according to the first MCS is transmitted through the communication system using hybrid automatic repeat request (“HARQ”).

    摘要翻译： 本文描述了增加通信系统中的频谱效率的方法。 通信系统包括至少一个移动站，并且能够发送根据多个可用调制编码方案（“MCS”）编码的消息。 每个可用的MCS包括调制方案和有效的编码率。 MCS随着复杂性的增加而被索引。 确定信号干扰比（“SINR”），其足以满足预定的帧错误率（“FER”）。 确定使用第一MCS在SINR处满足预定FER所需的第一MCS和相应的传输量。 第一MCS具有比第二MCS更高的有效编码率。 第二MCS在单个传输中足够满足SINR下的预定FER。 根据第一MCS编码的消息通过使用混合自动重传请求（“HARQ”）的通信系统被发送。

    METHOD AND APPARATUS FOR SPECTRALLY EFFICIENT LINK ADAPTATION USING HARQ IN OFDMA SYSTEMS
    4.
    发明申请
    METHOD AND APPARATUS FOR SPECTRALLY EFFICIENT LINK ADAPTATION USING HARQ IN OFDMA SYSTEMS 有权
    在OFDMA系统中使用HARQ的频谱效率链路适配的方法和装置

    公开(公告)号：US20110019768A1

    公开(公告)日：2011-01-27

    申请号：US12935833

    申请日：2009-04-28

    申请人： Sairamesh Nammi ,  Shankar Venkatraman ,  Ashvin Chheda

    发明人： Sairamesh Nammi ,  Shankar Venkatraman ,  Ashvin Chheda

    IPC分类号： H04L27/00

    CPC分类号： H04W72/04 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0037

    摘要： A method increases spectral efficiency in a communication system. The communication system includes at least one mobile station and is capable of transmitting messages encoded according to a plurality of available modulation coding schemes (“MCSs”). Each available MCS includes a modulation scheme and an effective coding rate. The MCSs are indexed according to increasing complexity. A signal-to-interference ratio (“SINR”) is determined which is sufficient to satisfy a predetermined frame error rate (“FER”). A first MCS and a corresponding amount of transmissions needed to satisfy the predetermined FER at the SINR using the first MCS are determined. The first MCS has a higher effective coding rate than a second MCS. The second MCS sufficiently satisfies the predetermined FER at the SINR in a single transmission. A message encoded according to the first MCS is transmitted through the communication system using hybrid automatic repeat request (“HARQ”)

    摘要翻译： 一种方法提高了通信系统中的频谱效率。 通信系统包括至少一个移动站，并且能够发送根据多个可用调制编码方案（“MCS”）编码的消息。 每个可用的MCS包括调制方案和有效的编码率。 MCS随着复杂性的增加而被索引。 确定信号干扰比（“SINR”），其足以满足预定的帧错误率（“FER”）。 确定使用第一MCS在SINR处满足预定FER所需的第一MCS和相应的传输量。 第一MCS具有比第二MCS更高的有效编码率。 第二MCS在单个传输中足够满足SINR下的预定FER。 根据第一MCS编码的消息通过使用混合自动重传请求（“HARQ”）的通信系统被发送，

    METHOD AND APPARATUS FOR CANDIDATE LIST GENERATION FOR UPLINK V-MIMO
    5.
    发明申请
    METHOD AND APPARATUS FOR CANDIDATE LIST GENERATION FOR UPLINK V-MIMO 有权
    用于UPLINK V-MIMO的候选列表生成的方法和装置

    公开(公告)号：US20110034206A1

    公开(公告)日：2011-02-10

    申请号：US12936409

    申请日：2009-04-28

    申请人： Shankar Venkatraman ,  Ashvin Chheda ,  Peter Michael Deane ,  Patrick Lie Chin Cheong

    发明人： Shankar Venkatraman ,  Ashvin Chheda ,  Peter Michael Deane ,  Patrick Lie Chin Cheong

    IPC分类号： H04B7/00

    CPC分类号： H04W72/04 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/005 ,  H04L5/0023 ,  H04L5/0037

    摘要： A method selects mobile station candidates for use with virtual multiple-input multiple-output (“V-MIMO”) in a communication system. The communication system includes at least one base station and a plurality of mobile stations. At least one downlink metric is determined for a first mobile station. The at least one downlink metric is used to determine eligibility for uplink V-MIMO candidate list selection. Responsive to determining that the first mobile station is eligible for uplink V-MIMO candidate list selection, the first mobile station is paired with a second mobile station eligible for uplink V-MIMO candidate list selection.

    摘要翻译： 一种方法选择在通信系统中使用虚拟多输入多输出（“V-MIMO”）的移动台候选。 通信系统包括至少一个基站和多个移动台。 为第一移动站确定至少一个下行链路度量。 使用至少一个下行链路度量来确定上行链路V-MIMO候选列表选择的合格性。 响应于确定第一移动台符合上行链路V-MIMO候选列表选择的条件，第一移动台与符合上行链路V-MIMO候选列表选择的第二移动台配对。

    Determination of whether to admit a mobile device to a hot spot
    7.
    发明授权
    Determination of whether to admit a mobile device to a hot spot 有权
    确定是否允许移动设备到热点

    公开(公告)号：US09185631B2

    公开(公告)日：2015-11-10

    申请号：US14301568

    申请日：2014-06-11

    申请人： Devabhaktuni Srikrishna ,  Shankar Venkatraman

    发明人： Devabhaktuni Srikrishna ,  Shankar Venkatraman

    IPC分类号： H04W48/20 ,  H04W48/02 ,  H04W84/04

    CPC分类号： H04W48/02 ,  H04W84/045

    摘要： Systems, methods and apparatuses of determining whether to admit the mobile device to the hot spot are disclosed. One method includes establishing communication between a hot spot and a mobile device, determining a first level of communication directly between the mobile device and a cellular network, determining a second level of communication between the mobile device and the cellular network through the hot spot, and identifying a fraction of other mobile devices having a level of communication directly with the cellular network. The method further includes determining whether to admit the mobile device to the hot spot based on a comparison of the first level of communication with the second level of communication, and the fraction of other mobile devices having a level of communication directly with the cellular network that is either better or worse than the first level of communication.

    摘要翻译： 公开了确定是否允许移动设备到热点的系统，方法和装置。 一种方法包括建立热点和移动设备之间的通信，确定移动设备和蜂窝网络之间直接的第一级通信，通过热点确定移动设备和蜂窝网络之间的第二级通信，以及 识别具有与蜂窝网络直接通信等级的其他移动设备的一小部分。 该方法还包括基于第一通信级别与第二级别的通信的比较以及直接与蜂窝网络具有通信级别的其他移动设备的比例来确定是否允许移动设备到热点， 或者比第一层次的沟通好或差。

    SYSTEM AND METHOD FOR PERFORMANCE ENHANCEMENT IN HETEROGENEOUS WIRELESS ACCESS NETWORK EMPLOYING DISTRIBUTED ANTENNA SYSTEM
    8.
    发明申请
    SYSTEM AND METHOD FOR PERFORMANCE ENHANCEMENT IN HETEROGENEOUS WIRELESS ACCESS NETWORK EMPLOYING DISTRIBUTED ANTENNA SYSTEM 审中-公开
    使用分布式天线系统进行异构无线接入网络性能提升的系统与方法

    公开(公告)号：US20150319711A1

    公开(公告)日：2015-11-05

    申请号：US14677696

    申请日：2015-04-02

    申请人： Shankar Venkatraman ,  Khurram Parviz Sheikh

    发明人： Shankar Venkatraman ,  Khurram Parviz Sheikh

    IPC分类号： H04W52/26 ,  H04W24/06

    CPC分类号： H04W52/265 ,  H04W24/06 ,  H04W52/143 ,  H04W52/244 ,  H04W52/267 ,  H04W52/40 ,  H04W52/42 ,  H04W84/045

    摘要： A system and method for dynamically optimizing the performance of indoor distributed antenna systems communicate to user equipment is disclosed. The user equipment measures information describing the downlink signals such as the downlink data rates, the quality of the received signal, and the location of the user equipment. A service module collects this information and determines an optimized power level for each of the antenna units. The service module may optimize only one antenna unit power level or a subset of the antenna units within the distributed antenna system in a preferred embodiment. One or more of the antenna units then transmits downlink signals with the optimized power levels. The optimized power level may be less than the initial power level in a preferred embodiment. As a result, the performance of the indoor distributed antenna systems is enhanced.

    摘要翻译： 公开了一种用于动态优化室内分布式天线系统的性能的系统和方法，与用户设备通信。 用户设备测量描述诸如下行链路数据速率，接收信号的质量和用户设备的位置之类的下行链路信号的信息。 服务模块收集该信息并确定每个天线单元的优化功率电平。 在优选实施例中，服务模块可以仅优化分布式天线系统内的天线单元功率电平或天线单元的子集。 然后，一个或多个天线单元发送具有优化的功率电平的下行链路信号。 在优选实施例中，优化的功率水平可以小于初始功率水平。 结果，提高了室内分布式天线系统的性能。