Training frames for MIMO stations
    72.
    发明授权
    Training frames for MIMO stations 失效
    MIMO站的训练帧

    公开(公告)号:US07486720B2

    公开(公告)日:2009-02-03

    申请号:US11127006

    申请日:2005-05-11

    IPC分类号: H04B1/38 H04B7/02 H04L27/00

    摘要: A method transmits training frames in a MIMO system. A long sequence of training frames is transmitted from a station B to a station A via a channel of the MIMO system, in which the station A includes NA antennas and NA—SS RF chains and the station B includes NB antennas and NB—SS RF chains, and a number of frames in the long sequence of training frames is at least equal to where is a lower bound operator. A short sequence of training frames is transmitted from the station A to the station B via the channel in response to receiving the long sequence of training frames. A number of frames in the short training sequence is at least equal to

    摘要翻译: 一种方法在MIMO系统中发送训练帧。 训练帧的长序列经由MIMO系统的信道从站B发送到站A,其中站A包括NA天线和NA SS-射频链,并且站B包括 NB天线和NB SS RF链,并且训练帧的长序列中的多个帧至少等于下界运算符的位置。 响应于接收到长的训练帧序列,经由信道将短序列的训练帧从站A发送到站B. 短训练序列中的多个帧至少等于

    Method for transmitting a communications packet in a wireless communications network
    73.
    发明申请
    Method for transmitting a communications packet in a wireless communications network 有权
    用于在无线通信网络中发送通信分组的方法

    公开(公告)号:US20070274261A1

    公开(公告)日:2007-11-29

    申请号:US11477255

    申请日:2006-06-29

    IPC分类号: H04Q7/00

    CPC分类号: H04L7/041 H04J13/00 H04L7/06

    摘要: A method and apparatus for transmitting a packet in a wireless communications network is presented. A packet is constructed to include synchronization header, a physical layer header, and a payload. A preamble and a start of frame delimiter are inserted in the synchronization header. Multiple fixed length ternary sequences are inserted in the start of frame delimiter in an arbitrary order, and then the packet is transmitted.

    摘要翻译: 提出了一种用于在无线通信网络中发送分组的方法和装置。 分组被构造为包括同步头,物理层头和有效载荷。 前同步码和帧定界符开始插入到同步头中。 多个固定长度的三进制序列以任意顺序插入到帧定界符的起始处,然后发送分组。

    Method for transmitting a communications packet in a wireless communications network
    74.
    发明授权
    Method for transmitting a communications packet in a wireless communications network 有权
    用于在无线通信网络中发送通信分组的方法

    公开(公告)号:US07792091B2

    公开(公告)日:2010-09-07

    申请号:US11475264

    申请日:2006-06-27

    IPC分类号: H04J3/24 H04J3/06 H04J3/00

    CPC分类号: H04L7/041 H04J13/00

    摘要: A method and apparatus for transmitting a packet in a wireless communications network is presented. A packet is constructed to include synchronization header, a physical layer header, and a payload. A preamble and a start of frame delimiter is inserted in the synchronization header. Multiple pairs of cores and of suffixes are inserted in the start of frame delimiter, and then the packet is transmitted.

    摘要翻译: 提出了一种用于在无线通信网络中发送分组的方法和装置。 分组被构造为包括同步头,物理层头和有效载荷。 在同步头中插入前导码和帧定界符开始。 在帧定界符​​的起始处插入多对核心和后缀,然后传输分组。

    Method for estimating time of arrival of received signals for ultra wide band impulse radio systems
    75.
    发明授权
    Method for estimating time of arrival of received signals for ultra wide band impulse radio systems 失效
    用于估计超宽带脉冲无线电系统的接收信号的到达时间的方法

    公开(公告)号:US07436909B2

    公开(公告)日:2008-10-14

    申请号:US10988764

    申请日:2004-11-15

    IPC分类号: H04L27/06

    CPC分类号: H04B1/7183

    摘要: A method estimates a time of arrival of a signal received in a wireless communication system. An energy in a frame of a received signal is measured to determine a block in the frame, the block representing a coarse time of arrival of the received signal. Multiple time-delayed versions of a template signal are combined with the block of the received signal to select a particular template signal. The particular template signal identifies a particular chip representing a fine time of arrival of the received signal.

    摘要翻译: 方法估计在无线通信系统中接收的信号的到达时间。 测量接收信号的帧中的能量以确定帧中的块,该块表示接收信号的粗略到达时间。 模板信号的多个时间延迟版本与接收信号的块组合以选择特定的模板信号。 特定模板信号识别表示接收信号的精确到达时间的特定芯片。

    Transceivers and methods for use in transmitting information in a massive MIMO system

    公开(公告)号:US09705579B2

    公开(公告)日:2017-07-11

    申请号:US14731196

    申请日:2015-06-04

    IPC分类号: H04B7/02 H04B7/06 H04B7/0413

    CPC分类号: H04B7/0608 H04B7/0413

    摘要: A method and apparatus is disclosed herein for transmitting information in massive MIMO system. In one embodiment, the apparatus comprises a plurality of antenna elements; a baseband processor; a plurality of radio-frequency (RF) chains coupled to the baseband processor; a plurality of switches coupled to the plurality of RF chains, wherein positions of switches in the plurality of switches being determined by instantaneous channel state information; a radio-frequency (RF) preprocessor coupled between the plurality of switches and the plurality of antenna elements, the RF preprocessor to apply a preprocessing matrix to signals, elements of the preprocessing matrix being adjusted as a function of average channel state information, and wherein the positions of the switches and elements of the preprocessing matrix are jointly chosen, and wherein the preprocessing matrix is chosen based on a metric related to expected performance obtained from at least one channel realization.

    Method for transmitting a communications packet in a wireless communications network
    77.
    发明授权
    Method for transmitting a communications packet in a wireless communications network 有权
    用于在无线通信网络中发送通信分组的方法

    公开(公告)号:US07801107B2

    公开(公告)日:2010-09-21

    申请号:US11477255

    申请日:2006-06-29

    IPC分类号: H04J3/06

    CPC分类号: H04L7/041 H04J13/00 H04L7/06

    摘要: A method and apparatus for transmitting a packet in a wireless communications network is presented. A packet is constructed to include synchronization header, a physical layer header, and a payload. A preamble and a start of frame delimiter are inserted in the synchronization header. Multiple fixed length ternary sequences are inserted in the start of frame delimiter in an arbitrary order, and then the packet is transmitted.

    摘要翻译: 提出了一种用于在无线通信网络中发送分组的方法和装置。 分组被构造为包括同步头,物理层头和有效载荷。 前同步码和帧定界符开始插入到同步头中。 多个固定长度的三进制序列以任意顺序插入到帧定界符的起始处,然后发送分组。

    Method for Randomly Accessing a Wireless Network
    78.
    发明申请
    Method for Randomly Accessing a Wireless Network 审中-公开
    随机访问无线网络的方法

    公开(公告)号:US20100097985A1

    公开(公告)日:2010-04-22

    申请号:US12402459

    申请日:2009-03-11

    IPC分类号: H04W40/00

    CPC分类号: H04W74/002 H04W74/0833

    摘要: In a wireless network including a base station (BS) and a set of mobile stations (MS), a MS transmits a ranging request message to the BS, using random access, when the MS enters the cell. The ranging request message includes request MS specific information for identifying the MS. The MS receives a ranging response message broadcast from the BS, which includes response MS specific information, request and response specific information to determine whether the BS received the request, or whether a collision occurred.

    摘要翻译: 在包括基站(BS)和一组移动站(MS)的无线网络中,当MS进入小区时,MS使用随机接入向BS发送测距请求消息。 测距请求消息包括用于识别MS的请求MS特定信息。 MS接收从BS广播的测距响应消息,其包括响应MS特定信息,请求和响应特定信息,以确定BS是否接收到请求,还是发生冲突。

    Antenna Selection For Multi-Input Multi-Output System
    79.
    发明申请
    Antenna Selection For Multi-Input Multi-Output System 审中-公开
    天线选择多输入多输出系统

    公开(公告)号:US20080212538A1

    公开(公告)日:2008-09-04

    申请号:US11995390

    申请日:2005-07-15

    IPC分类号: H04B7/208

    摘要: A transmitting station in a radio network includes at least one radio frequency (RF) chain, a packet generator configured to generate a sounding packet including a number of training frames and a signaling frame, and at least one antenna element coupled to the at least one RF chain and configured to broadcast a transmit signal including the sounding packet. The packet generator produces in the sounding packet the number of training frames and the content of the signaling frame based at least in part on the number of antenna elements and the number RF chains.

    摘要翻译: 无线电网络中的发射站包括至少一个射频(RF)链,分组生成器,被配置为生成包括多个训练帧和信令帧的探测分组,以及至少一个耦合到该至少一个的天线元件 RF链,并被配置为广播包括探测分组的发射信号。 分组生成器至少部分地基于天线元件的数量和数量RF链,在探测分组中产生训练帧的数量和信令帧的内容。

    Adaptive frame durations for time-hopped impulse radio systems
    80.
    发明授权
    Adaptive frame durations for time-hopped impulse radio systems 有权
    时间跳跃脉冲无线电系统的自适应帧持续时间

    公开(公告)号:US07403746B2

    公开(公告)日:2008-07-22

    申请号:US11199023

    申请日:2005-08-08

    IPC分类号: H04B17/00

    摘要: A method determines a duration of a frame in an impulse radio system for radio ranging. Channel state information of a channel between two transceivers is estimated periodically. A signal to noise and interference ratio is also estimated periodically. The frame duration of the frame is then determined according to the channel state information and the signal to noise and interference ratio.

    摘要翻译: 一种方法确定用于无线电测距的脉冲无线电系统中的帧的持续时间。 周期性地估计两个收发器之间的信道的信道状态信息。 周期性地估计信噪比干扰比。 然后根据信道状态信息和信噪比干扰比来确定帧的帧持续时间。