Transmission of channel quality data in wireless communication systems
    31.
    发明授权
    Transmission of channel quality data in wireless communication systems 有权
    无线通信系统中信道质量数据的传输

    公开(公告)号:US09037091B2

    公开(公告)日:2015-05-19

    申请号:US12645830

    申请日:2009-12-23

    IPC分类号: H04B17/00 H04W68/08

    摘要: Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.

    摘要翻译: 简而言之,根据一个或多个实施例,在下行链路信道中接收从发射机发送的数据,并且在第一上行链路信道或第二上行链路信道中将信道质量数据反馈给发射机。 信道质量数据在第一上行链路信道上以较低的速率进行反馈,并且在存在要反馈的数据量较大的情况下,信道质量数据以较高速率在第二上行链路信道上反馈。 可以利用链路自适应来选择第二上行链路信道上的传输速率,其中至少部分地基于信道条件或用户位置来选择传输速率。

    Uplink noise estimation for virtual MIMO
    32.
    发明授权
    Uplink noise estimation for virtual MIMO 有权
    用于虚拟MIMO的上行链路噪声估计

    公开(公告)号:US09008207B2

    公开(公告)日:2015-04-14

    申请号:US13878708

    申请日:2010-10-11

    摘要: A system and methods for estimating a noise power level in an uplink signal for a virtual MIMO system is disclosed. The system comprises a demodulation reference signal (DMRS) module configured to obtain a DMRS receive symbol from the uplink signal and determine a DMRS sequence for a first UE in the virtual MIMO system. An autocorrelation module is configured to calculate an average autocorrelation value for the subcarriers in the uplink signal. A cross-correlation module is configured to calculate first and second cross-correlation values of the uplink signal RZ(l) for values of l selected such that the sum of the received power from the first UE and the second UE can be accurately estimated. A noise power level module is configured to determine the noise power level for the uplink signal using the average autocorrelation value and the first and second cross correlation values.

    摘要翻译: 公开了一种用于估计虚拟MIMO系统的上行链路信号中的噪声功率电平的系统和方法。 该系统包括解调参考信号(DMRS)模块,其被配置为从上行链路信号获得DMRS接收符号,并确定虚拟MIMO系统中的第一UE的DMRS序列。 自相关模块被配置为计算上行链路信号中的子载波的平均自相关值。 互相关模块被配置为针对所选择的l的值计算上行链路信号RZ(1)的第一和第二互相关值,使得可以准确地估计来自第一UE和第二UE的接收功率之和。 噪声功率电平模块被配置为使用平均自相关值和第一和第二互相关值来确定上行链路信号的噪声功率电平。

    INTERLACED SYMBOL CONSTELLATION MAPPING FOR WIRELESS COMMUNICATION
    35.
    发明申请
    INTERLACED SYMBOL CONSTELLATION MAPPING FOR WIRELESS COMMUNICATION 有权
    用于无线通信的相互符号符号映射

    公开(公告)号:US20110150109A1

    公开(公告)日:2011-06-23

    申请号:US12642936

    申请日:2009-12-21

    IPC分类号: H04L27/28 H04L27/00 H04L1/18

    摘要: Briefly, in accordance with one or more embodiments, a data packet to be transmitted is encoded and one or more subpackets are generated from the encoded data packet. A first bit pattern is applied to a first symbol of the subpackets to provide a constellation, and a different bit pattern is applied to a next adjacent symbol in the constellation for one or more additional symbols. The data packet is then modulated according to the constellation and transmitted one or more times until the data packet is decoded by a receiver or until said transmitting is aborted according to a hybrid automatic repeat request error correction technique.

    摘要翻译: 简而言之,根据一个或多个实施例,要发送的数据分组被编码,并且从编码的数据分组生成一个或多个子分组。 将第一比特模式应用于子分组的第一符号以提供星座,并且将不同的比特模式应用于星座中的下一个相邻符号用于一个或多个附加符号。 然后根据星座调制数据包,并发送一次或多次,直到数据包被接收机解码,或直到根据混合自动重复请求纠错技术中止发送。

    TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS
    37.
    发明申请
    TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中信道质量数据的传输

    公开(公告)号:US20100227565A1

    公开(公告)日:2010-09-09

    申请号:US12645830

    申请日:2009-12-23

    IPC分类号: H04B17/00

    摘要: Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.

    摘要翻译: 简而言之,根据一个或多个实施例,在下行链路信道中接收从发射机发送的数据,并且在第一上行链路信道或第二上行链路信道中将信道质量数据反馈给发射机。 信道质量数据在第一上行链路信道上以较低的速率进行反馈,并且在存在要反馈的数据量较大的情况下,信道质量数据以较高速率在第二上行链路信道上反馈。 可以利用链路自适应来选择第二上行链路信道上的传输速率,其中至少部分地基于信道条件或用户位置来选择传输速率。

    METHODS AND DEVICES FOR DECODING AND ENCODING DATA
    38.
    发明申请
    METHODS AND DEVICES FOR DECODING AND ENCODING DATA 审中-公开
    用于解码和编码数据的方法和设备

    公开(公告)号:US20090086839A1

    公开(公告)日:2009-04-02

    申请号:US12092936

    申请日:2006-11-07

    IPC分类号: H04L29/00

    摘要: A method for decoding an input data sequence is provided. The method comprises generating a plurality of test sequences, determining an order for the plurality of test sequences, such that each test sequence differs from its adjacent test sequences by a respective predefined number of bits, and carrying out a maximum likelihood process with the ordered test sequences and the input data sequence thereby generating a maximum likelihood sequence.

    摘要翻译: 提供了一种用于解码输入数据序列的方法。 该方法包括生成多个测试序列,确定多个测试序列的顺序,使得每个测试序列与其相邻的测试序列不同于相应的预定位数,并且通过有序测试进行最大似然处理 序列和输入数据序列,从而产生最大似然序列。

    METHOD AND APPARATUS FOR TRANSMITTING AN ACK/NACK SIGNAL IN A WIRELESS COMMUNICATION SYSTEM
    40.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AN ACK/NACK SIGNAL IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中发送ACK / NACK信号的方法和装置

    公开(公告)号:US20110058522A1

    公开(公告)日:2011-03-10

    申请号:US12554355

    申请日:2009-09-04

    IPC分类号: H04W72/12 H04L27/28

    摘要: Machine-readable media, methods, apparatus and system for transmitting ACK/NACK signal in a wireless communication system are described. In some embodiments, a sequence corresponding to one of acknowledge (ACK) information and non-acknowledge (NACK) information may be determined. Then, the sequence may be mapped onto a transmission channel for later transmission from the mobile station to a base station. In some embodiments, the transmission channel may be allocated with at least a part of three feedback mini-tiles (FMTs), wherein each of the FMTs comprises two subcarriers contiguous in frequency domain by six orthogonal frequency division multiplexing (OFDM) symbols contiguous in time domain and the three FMTs being discontinuous in frequency domain.

    摘要翻译: 描述了在无线通信系统中发送ACK / NACK信号的机器可读介质,方法,装置和系统。 在一些实施例中,可以确定与确认(ACK)信息和非确认(NACK)信息之一相对应的序列。 然后,该序列可以被映射到传输信道上,用于稍后从移动台传输到基站。 在一些实施例中,传输信道可以被分配有三个反馈小型瓦片(FMT)的至少一部分,其中每个FMT包括在频域中连续的六个正时频分复用(OFDM)符号的两个子载波 域和三个FMT在频域不连续。