公开(公告)号：WO2008045588A3

公开(公告)日：2008-11-20

申请号：PCT/US2007068247

申请日：2007-05-04

Applicant: NAVINI NETWORKS INC ,  LIU QINGWEN ,  JIN HANG

Inventor： LIU QINGWEN ,  JIN HANG

IPC: H04W16/28 ,  H04W36/18

CPC classification number: H04W16/28 ,  H04B7/024 ,  H04B7/0617 ,  H04L1/0077 ,  H04L1/0618 ,  H04W36/18

Abstract: The present application discloses a method for wireless communications network performance in transmitting a message. The method comprises creating a first beamformed virtual antenna for the serving BTS and one or more second beamformed virtual antennas for the one or more target BTSs when one or more predetermined conditions are met, establishing a first beamformed channel by using the first beamformed virtual antenna, establishing one or more second beamformed channels by using the one or more second beamformed virtual antennas, and transmitting a plurality of signals comprising the message via the first and the one or more second beamformed channels.

Abstract translation: 本申请公开了一种用于在发送消息中的无线通信网络性能的方法。 该方法包括：当满足一个或多个预定条件时，为服务BTS创建第一波束形成的虚拟天线和用于一个或多个目标BTS的一个或多个第二波束形成的虚拟天线，通过使用第一波束形成的虚拟天线建立第一波束形成的信道， 通过使用所述一个或多个第二波束形成的虚拟天线来建立一个或多个第二波束形成的信道，以及经由所述第一和所述一个或多个第二波束形成的信道来发送包括所述消息的多个信号。

公开(公告)号：WO2007139600A3

公开(公告)日：2008-10-16

申请号：PCT/US2007004177

申请日：2007-02-13

Applicant: NAVINI NETWORKS INC ,  JIN HANG ,  GRABNER JOHN

Inventor： JIN HANG ,  GRABNER JOHN

IPC: H04M1/00

CPC classification number: H04W16/28

Abstract: A method for cell control in a wireless network is disclosed, which comprises providing a base transceiver station (BTS) with a plurality of antennas receiving a plurality of feed signals, respectively, varying one or more parameters of the plurality of feed signals according to a plurality of predetermined criteria for synthesizing a desired antenna radiation pattern, wherein a coverage area of the BTS is adjusted.

Abstract translation: 公开了一种用于无线网络中的小区控制的方法，其包括：提供基站收发台（BTS），多个天线分别接收多个馈送信号，根据一个 用于合成期望的天线辐射图的多个预定准则，其中调整BTS的覆盖区域。

公开(公告)号：WO2008027613A3

公开(公告)日：2008-10-02

申请号：PCT/US2007065292

申请日：2007-03-27

Applicant: NAVINI NETWORKS INC ,  HEDAYAT AHMADREZA ,  JIN HANG

Inventor： HEDAYAT AHMADREZA ,  JIN HANG

IPC: H03M13/03

CPC classification number: H04L1/0054 ,  H03M13/3994 ,  H03M13/4107 ,  H03M13/413 ,  H04L1/0059

Abstract: The present invention discloses a method and system for improving the performance of a trellis-based decoder. The method comprises generating a first state with reduced uncertainty (SRU) and one or more second SRUs with one or more predetermined fields in a message (410); setting metrics of one or more states in the first SRU, which have an equal probability, to a first predetermined value; setting metrics of one or more states that are not in the first SRU to a second predetermined value, which corresponds to a minimum probability; and decoding the message while eliminating invalid candidate paths in a trellis by setting the metrics of the one or more states not belonging to the one or more second SRUs to a value corresponding to the second predetermined value (430).

Abstract translation: 本发明公开了一种用于提高基于网格的解码器的性能的方法和系统。 该方法包括在消息（410）中产生具有降低的不确定性（SRU）的第一状态和具有一个或多个预定字段的一个或多个第二SRU; 将具有相等概率的第一SRU中的一个或多个状态的度量设置为第一预定值; 将不在所述第一SRU中的一个或多个状态的度量设置为对应于最小概率的第二预定值; 以及通过将不属于所述一个或多个第二SRU的所述一个或多个状态的度量设置为与所述第二预定值相对应的值来解码所述消息同时消除网格中的无效候选路径（430）。

公开(公告)号：WO2008045587A3

公开(公告)日：2008-09-25

申请号：PCT/US2007068126

申请日：2007-05-03

Applicant: NAVINI NETWORKS INC ,  LOU HANQING ,  HEDAYAT AHMADREZA ,  JIN HANG

Inventor： LOU HANQING ,  HEDAYAT AHMADREZA ,  JIN HANG

IPC: H03M13/00 ,  H04L1/18

CPC classification number: H03M13/4115 ,  H03M13/3738 ,  H03M13/6306 ,  H04L1/1809 ,  H04L1/1829

Abstract: A system for detecting one or more localized burst errors in a receiving message comprised of a plurality of codewords. The system comprises a trellis code decoder (210) for decoding a receiving message with a plurality of codewords and calculating one or more cumulative metrics of a maximum likelihood path and one or more alternative paths from the receiving message, an error detection code (EDC) decoder (230) for detecting existence of one or more errors in the decoded receiving message received from the trellis decoder, and a localized burst error detector (240) activated by the EDC decoder upon detecting the existence of one or more errors in the decoded receiving message to identify at least one corrupted codeword among the plurality of codewords using the one or more cumulative metrics of a maximum likelihood path and the one or more alternative paths, wherein the system requests the re-transmission of the corrupted codeword.

Abstract translation: 一种用于检测由多个码字组成的接收消息中的一个或多个本地突发错误的系统。 该系统包括格码解码器（210），用于对具有多个码字的接收消息进行解码，并从接收消息中计算最大似然路径和一个或多个替代路径的一个或多个累积度量，错误检测码（EDC） 解码器（230），用于检测从网格解码器接收的解码的接收消息中的一个或多个错误的存在;以及本地突发错误检测器（240），其在检测到解码接收中存在一个或多个错误时被EDC解码器激活 消息，以使用最大似然路径和所述一个或多个备选路径的一个或多个累积度量来识别所述多​​个码字中的至少一个已损坏的码字，其中所述系统请求所述损坏的码字的重新发送。

公开(公告)号：WO2008073644A1

公开(公告)日：2008-06-19

申请号：PCT/US2007/084030

申请日：2007-11-08

Applicant: NAVINI NETWORKS, INC. ,  LIU, Qingwen ,  WANG, Genyuan ,  JIN, Hang

Inventor： LIU, Qingwen ,  WANG, Genyuan ,  JIN, Hang

IPC: H04B7/00

CPC classification number: H04W72/0406 ,  H04W72/085

Abstract: The present invention discloses a method for allocating an uplink sounding region dynamically to obtain downlink channel quality information (CQI) about a downlink channel. The method comprises receiving a downlink transmission request and retrieving an identification information from the downlink transmission request, searching one or more databases using the retrieved identification information as a key, identifying the CQI about the downlink channel from the one or more databases, wherein the uplink sounding region needs not to be allocated when the CQI corresponding to the downlink transmission request is identified in the databases.

Abstract translation: 本发明公开了一种用于动态分配上行探测区域以获得关于下行链路信道的下行链路信道质量信息（CQI）的方法。 该方法包括从下行链路传输请求接收下行链路传输请求和检索识别信息，使用检索到的识别信息作为密钥搜索一个或多个数据库，从一个或多个数据库中识别关于下行链路信道的CQI，其中上行链路 当在数据库中识别出与下行链路传输请求对应的CQI时，不需要分配探测区域。

公开(公告)号：WO2008052010A2

公开(公告)日：2008-05-02

申请号：PCT/US2007/082300

申请日：2007-10-23

Applicant: NAVINI NETWORKS, INC. ,  NA, Yanxin ,  JIN, Hang

Inventor： NA, Yanxin ,  JIN, Hang

IPC: H04B7/00

CPC classification number: H04B7/0413

Abstract: The present invention disclosed a method for obtaining a covariance matrix of a transmitting channel in a wireless network. The method comprises calculating a speculative transformation matrix, generating a covariance matrix of a receiving channel, and transforming the covariance matrix of the receiving channel into a covariance matrix of a transmitting channel using the speculative transformation matrix.

Abstract translation: 本发明公开了一种用于获得无线网络中的发送信道的协方差矩阵的方法。 该方法包括计算推测变换矩阵，生成接收信道的协方差矩阵，并使用推测变换矩阵将接收信道的协方差矩阵变换成发送信道的协方差矩阵。

公开(公告)号：WO2008051845A2

公开(公告)日：2008-05-02

申请号：PCT/US2007/081949

申请日：2007-10-19

Applicant: NAVINI NETWORKS, INC. ,  NA, Yanxin ,  JIN, Hang

Inventor： NA, Yanxin ,  JIN, Hang

IPC: H04M1/00

CPC classification number: H04B7/043 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0695

Abstract: The present invention discloses a method for selecting one or more downlink beamforming vectors for a wireless channel to create beamformed signals. The method comprises estimating a downlink channel covariance matrix by using an uplink covariance matrix of the wireless channel, computing a plurality of downlink eigenvectors of a downlink channel by using the downlink channel covariance matrix, generating a plurality of downlink beamforming weighting vectors by using the plurality of downlink eigenvectors of the downlink channel, and selecting one or more dominant downlink beamforming weighting vectors from the plurality of downlink beamforming weighting vectors based on feedback from a mobile station (MS), wherein the downlink beamformed signals are created by applying the corresponding one or more dominant beamforming weighting vectors to an antenna array of a base transceiver station.

Abstract translation: 本发明公开了一种用于为无线信道选择一个或多个下行链路波束成形向量以创建波束形成信号的方法。 该方法包括使用无线信道的上行协方差矩阵来估计下行链路信道协方差矩阵，通过使用下行链路信道协方差矩阵来计算下行链路信道的多个下行特征向量，通过使用多个下行链路信道协方差矩阵生成多个下行链路波束成形加权向量 ，并且基于来自移动台（MS）的反馈从多个下行链路波束成形加权向量中选择一个或多个主要下行链路波束成形加权向量，其中下行链路波束形成的信号是通过应用相应的一个或者 更多的主要波束成形加权向量到基站收发台的天线阵列。

公开(公告)号：WO2008051772A3

公开(公告)日：2008-05-02

申请号：PCT/US2007/081700

申请日：2007-10-17

Applicant: NAVINI NETWORKS, INC. ,  JIN, Hang

Inventor： JIN, Hang

IPC: H04B1/06

Abstract: The present invention discloses a method for generating beamformed multiple-input-multiple-output (MIMO) channels. The method comprises receiving by a base station (BS) a first plurality of receiving signals transmitted from a first antenna on a mobile station (MS), receiving by the BS a second plurality of receiving signals transmitted from a second antenna on the MS, nulling out a first predetermined percentage of the second plurality of receiving signals to generate a third plurality of receiving signals, calculating a first beamforming weighting vector corresponding to the first antenna on the MS using the first and third pluralities of receiving signals and creating a first beamformed MIMO channel from the BSto the first antenna on the MS using the first beamforming weighting vector.

公开(公告)号：WO2008021644A2

公开(公告)日：2008-02-21

申请号：PCT/US2007/073406

申请日：2007-07-12

Applicant: NAVINI NETWORKS, INC. ,  JIN, Hang ,  HEDAYAT, Ahmadreza

Inventor： JIN, Hang ,  HEDAYAT, Ahmadreza

IPC: H04J1/06

CPC classification number: H01Q3/26 ,  H04B7/0686 ,  H04B7/0689 ,  H04B7/0691 ,  H04L5/0023

Abstract: A method for partitioning a plurality of antennas in a wireless communication system, in which the antennas are grouped into a first set of partitions and a second set of partitions. One or more signal transmission schemes are performed with the antennas grouped into the first set of partitions for a first time period, and then with the antennas grouped into the second set of partitions for a second time period.

Abstract translation: 一种在无线通信系统中分割多个天线的方法，其中天线被分组成第一组分区和第二组分区。 一个或多个信号传输方案是在天线被分组到第一组分区中的天线进行第一时间段，然后将天线分成第二组分区的第二时间段。

公开(公告)号：WO2006127464A3

公开(公告)日：2007-11-08

申请号：PCT/US2006019460

申请日：2006-05-18

Applicant: NAVINI NETWORKS INC ,  BANH AN TUYEN ,  JIN HANG ,  GRABNER JOHN

Inventor： BANH AN TUYEN ,  JIN HANG ,  GRABNER JOHN

IPC: H04B7/00

CPC classification number: H04W52/42 ,  H04L27/2602 ,  H04W52/146 ,  H04W52/262 ,  H04W52/367

Abstract: A method is disclosed for optimizing up-link transmit powers of a wireless broadband terminal operating in a predetermined frequency band in a multi-carrier system, the method comprising assigning a transmit signal to one or more sub-carriers of predetermined frequencies, and capping the output powers of the transmit signal to a predetermined level based on the predetermined frequencies, wherein the output power of the transmit signal is lower if frequencies of the transmit signal have less guard band to the edge of the predetermined frequency band.

Abstract translation: 公开了一种用于优化在多载波系统中在预定频带中工作的无线宽带终端的上行链路发射功率的方法，所述方法包括：将发射信号分配给预定频率的一个或多个子载波，并且对 基于所述预定频率将所述发射信号的功率输出到预定电平，其中如果所述发射信号的频率对所述预定频带的边缘具有较小的保护频带，则所述发射信号的输出功率较低。