Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system
    111.
    发明申请
    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system 审中-公开
    在OFDM通信系统中发送/接收导频信号的装置和方法

    公开(公告)号:US20050094550A1

    公开(公告)日:2005-05-05

    申请号:US10978814

    申请日:2004-11-01

    IPC分类号: H04J11/00 H04L27/26

    摘要: A radio communication system divides an entire frequency band into a plurality of subcarrier bands, forms a symbol with signals on the subcarrier bands, forms a frame with a plurality of symbols, transmits a pilot signal within symbols in a predetermined position of the frame, and transmits a data signal within symbols other than the symbols for transmitting the pilot signal. A transmitter allocates subcarriers through which the reference signal is transmitted, wherein the subcarriers are allocated to have an exclusive relation with subcarriers through which reference signals of other transmitters are transmitted, generates the pilot signal, performs an inverse fast Fourier transform (IFFT) on the pilot signal by applying an IFFT size which is less than or equal to an IFFT size applied to the data signal, and transmits the IFFT-processed reference signal to a receiver.

    摘要翻译: 无线电通信系统将整个频带划分为多个子载波频带,在子载波频带上形成具有信号的符号,形成具有多个符号的帧,在帧的预定位置的符号内发送导频信号,以及 在除了用于发送导频信号的符号之外的符号内发送数据信号。 发射机分配通过其发送参考信号的子载波,其中子载波被分配为与其他发射机的参考信号通过其发送的子载波具有排他关系,产生导频信号,在该载波上执行快速傅立叶逆变换(IFFT) 通过应用小于或等于应用于数据信号的IFFT尺寸的IFFT尺寸的IFFT尺寸的导频信号,并将IFFT处理的参考信号发送到接收机。

    Apparatus and method for simultaneously receiving two neighboring frequency assignments in a cellular system
    114.
    发明申请
    Apparatus and method for simultaneously receiving two neighboring frequency assignments in a cellular system 审中-公开
    在蜂窝系统中同时接收两个相邻频率分配的装置和方法

    公开(公告)号:US20070191017A1

    公开(公告)日:2007-08-16

    申请号:US11698288

    申请日:2007-01-25

    IPC分类号: H04Q7/20

    CPC分类号: H04W72/048 H04W36/18

    摘要: An apparatus and method for allocating a frequency band to an MS in a cellular system with a frequency reuse factor of N are provided, in which a frequency allocator determines whether the MS receives data simultaneously from two BSs using neighboring FAs and allocates a frequency band to the MS according to the determination, and a subcarrier mapper maps the data to subcarriers according to the frequency band allocated to the MS.

    摘要翻译: 提供了一种用于在频率重用因子为N的蜂窝系统中向MS分配频带的装置和方法,其中,频率分配器确定MS是否使用相邻FA同时从两个BS接收数据,并将频带分配给 根据确定的MS,并且子载波映射器根据分配给MS的频带将数据映射到子载波。

    Apparatus and method for receiving a signal in a communication system
    115.
    发明申请
    Apparatus and method for receiving a signal in a communication system 审中-公开
    用于在通信系统中接收信号的装置和方法

    公开(公告)号:US20070190945A1

    公开(公告)日:2007-08-16

    申请号:US11649102

    申请日:2007-01-03

    IPC分类号: H04B1/00

    摘要: An apparatus and method for receiving a signal in a communication system are provided. Information related to a first modulation scheme applied to a frequency domain in a serving base station is received from the serving base station. Information related to a second modulation scheme applied to the frequency domain in at least one neighbor base station is received from the at least one neighbor base station. A signal is received in the frequency domain. Channel state information is generated by estimating the received signal. A determination is made as to whether to use interference cancellation using the channel state information, the first modulation scheme information and the second modulation scheme information.

    摘要翻译: 提供了一种用于在通信系统中接收信号的装置和方法。 从服务基站接收与应用于服务基站中的频域的第一调制方式有关的信息。 从至少一个相邻基站接收与应用于至少一个相邻基站中的频域的第二调制方案有关的信息。 在频域中接收信号。 通过估计接收信号来生成信道状态信息。 确定使用信道状态信息,第一调制方式信息和第二调制方式信息是否使用干扰消除。

    Apparatus and method for receiving a signal in a communication system
    116.
    发明申请
    Apparatus and method for receiving a signal in a communication system 有权
    用于在通信系统中接收信号的装置和方法

    公开(公告)号:US20070183544A1

    公开(公告)日:2007-08-09

    申请号:US11650897

    申请日:2007-01-08

    IPC分类号: H03D1/04

    CPC分类号: H04B1/123 H04B7/0857

    摘要: In a communication system, information regarding a first modulation scheme applied to a frequency domain in a serving base station is received from the serving base station. A signal of the frequency domain is received. A second modulation scheme is set by estimating a modulation scheme applied to the frequency domain in at least one neighbor base station from the received signal. Channel state information is generated by estimating the received signal. An operation for selecting whether to use interference cancellation is performed using the channel state information, the first modulation scheme information and the second modulation scheme.

    摘要翻译: 在通信系统中,从服务基站接收关于服务基站中应用于频域的第一调制方式的信息。 接收频域的信号。 通过从接收到的信号估计在至少一个相邻基站中应用于频域的调制方案来设置第二调制方案。 通过估计接收信号来生成信道状态信息。 使用信道状态信息,第一调制方式信息和第二调制方式来执行用于选择是否使用干扰消除的操作。

    Method and system for transmitting/receiving data in a communication system
    117.
    发明授权
    Method and system for transmitting/receiving data in a communication system 有权
    用于在通信系统中发送/接收数据的方法和系统

    公开(公告)号:US08559364B2

    公开(公告)日:2013-10-15

    申请号:US11649733

    申请日:2007-01-04

    IPC分类号: H04W80/04

    摘要: A method is provided for transmitting/receiving data in a communication system. The method includes determining, when data to be transmitted to at least one Mobile Station (MS) is generated, a region where an MS that receive the generated data among the at least one MS is located, allocating resources of a data transmission region divided into a first region and a second region to the MS that receive the generated data according to the determination result, including the generated data in a region where the resource is allocated, and including, in a MAP message region, resource allocation information of the region where the data is included and information on an MS that receive the data included in the resource-allocated region, and transmitting, to the MS, a frame including the region in which the generated data is included, and the MAP message region.

    摘要翻译: 提供了一种用于在通信系统中发送/接收数据的方法。 该方法包括:当要发送到至少一个移动站(MS)的数据被生成时,确定在至少一个MS之间接收生成的数据的MS所在的区域,分配数据传输区域的资源,被划分为 所述MS的第一区域和第二区域根据所述确定结果接收所生成的数据,所述确定结果包括在所述资源被分配的区域中生成的数据,并且在MAP消息区域中包括所述区域的资源分配信息 包括数据和接收包含在资源分配区域中的数据的MS的信息,以及向MS发送包括生成数据的区域的帧和MAP消息区域。

    Apparatus and method for receiving data signals of two adjacent frequency allocations in cellular environments
    118.
    发明申请
    Apparatus and method for receiving data signals of two adjacent frequency allocations in cellular environments 审中-公开
    用于在蜂窝环境中接收两个相邻频率分配的数据信号的装置和方法

    公开(公告)号:US20070026896A1

    公开(公告)日:2007-02-01

    申请号:US11496815

    申请日:2006-08-01

    IPC分类号: H04B1/38

    摘要: Provided is an apparatus and method for simultaneously receiving data signals of two adjacent frequency allocation (FA) in a cellular environment. When there is another base station using an adjacent FA to an FA of the base station, a subcarrier mapper maps control information to subcarriers of predetermined sections such that a mobile station simultaneously receives data signals of the adjacent FAs. An inverse fast Fourier transform (IFFT) processor IFFT-processes data mapped to the subcarriers. Because two different BSs transmit the same data through independent paths, the mobile station can obtain a macro diversity gain. Also, it is possible to balance the loads of the two BSs.

    摘要翻译: 提供了一种用于在蜂窝环境中同时接收两个相邻频率分配(FA)的数据信号的装置和方法。 当存在使用与基站的FA相邻的FA的另一基站时,子载波映射器将控制信息映射到预定部分的子载波,使得移动台同时接收相邻FA的数据信号。 反FFT快速傅里叶变换(IFFT)处理器IFFT处理映射到子载波的数据。 因为两个不同的BS通过独立的路径发送相同的数据,所以移动站可以获得宏分集增益。 此外,可以平衡两个BS的负载。

    Method for performing handover in a mobile communication system
    119.
    发明申请
    Method for performing handover in a mobile communication system 审中-公开
    用于在移动通信系统中执行切换的方法

    公开(公告)号:US20060281462A1

    公开(公告)日:2006-12-14

    申请号:US11452813

    申请日:2006-06-14

    IPC分类号: H04Q7/20

    CPC分类号: H04W36/30

    摘要: Disclosed is a method for determining handover of a mobile station by a mobile station in a mobile communication system. The method includes measuring a downlink reference signal intensity of a serving base station; determining to perform scanning for measurement of reference signal intensities of the serving base station and neighbor base stations, when the measured downlink reference signal intensity of the serving base station is less than a reference value, negotiating with the serving base station for a scanning period and the number of scanning repetitions, measuring the reference signal intensities of the serving base station and the neighbor base stations, and resetting the reference value when a reference signal intensity of the serving base station is greater than or equal to reference signal intensities of neighbor base stations.

    摘要翻译: 公开了移动通信系统中移动台确定移动台的切换的方法。 该方法包括:测量服务基站的下行链路参考信号强度; 当所测量的服务基站的下行链路参考信号强度小于参考值时,确定执行对服务基站和相邻基站的参考信号强度的测量的扫描,在服务基站与扫描周期协商, 扫描重复次数,测量服务基站和相邻基站的参考信号强度,并且当服务基站的参考信号强度大于或等于相邻基站的参考信号强度时,重新设置参考值 。

    Apparatus and method for acquiring frame synchronization in broadband wireless communication system
    120.
    发明申请
    Apparatus and method for acquiring frame synchronization in broadband wireless communication system 审中-公开
    在宽带无线通信系统中获取帧同步的装置和方法

    公开(公告)号:US20070217532A1

    公开(公告)日:2007-09-20

    申请号:US11714012

    申请日:2007-03-05

    IPC分类号: H04K1/10 H04L27/06

    摘要: Provided are an apparatus and a method for acquiring frame synchronization in a broadband wireless communication system using a plurality of preamble sub-carrier patterns. The apparatus includes a plurality of preamble detectors that perform phase compensation on input sample data in accordance with a corresponding pattern and computes correlation values for respective time indices by using the phase-compensated sample data; an adder that sums the correlation values received from the preamble detectors; and a synchronization determination unit that compares sums obtained from the adder so as to select a maximum value and determines a time index corresponding to the maximum value as the frame synchronization.

    摘要翻译: 提供了一种在宽带无线通信系统中使用多个前导码副载波模式获取帧同步的装置和方法。 该装置包括多个前导码检测器,根据相应的模式对输入的采样数据执行相位补偿,并通过使用相位补偿的采样数据来计算各个时间索引的相关值; 加法器,其从前同步码检测器接收的相关值相加; 以及同步确定单元,其比较从加法器获得的和以选择最大值并确定与最大值相对应的时间索引作为帧同步。