Apparatus and method for allocating resources in a communication system
    11.
    发明申请
    Apparatus and method for allocating resources in a communication system 有权
    用于在通信系统中分配资源的装置和方法

    公开(公告)号:US20070121547A1

    公开(公告)日:2007-05-31

    申请号:US11606581

    申请日:2006-11-30

    IPC分类号: H04Q7/00

    CPC分类号: H04W72/10

    摘要: The present invention is provided a method for allocating uplink resources in a communication system. The method includes calculating a scheduling metric for each Mobile Station (MS), selecting an MS with a high priority according to the scheduling metric, determining a Modulation order Product coding Rate (MPR) and a number of subchannels for the selected MS, and allocating the determined MPR and the determined number of subchannels to the selected MS and updating the scheduling metric for the each MS.

    摘要翻译: 本发明提供一种在通信系统中分配上行资源的方法。 该方法包括:计算每个移动站(MS)的调度度量,根据调度度量选择具有高优先级的MS,确定所选MS的调制阶乘积编码率(MPR)和子信道数量,以及分配 确定的MPR和确定的子信道数量到所选择的MS并更新每个MS的调度度量。

    APPARATUS AND METHOD FOR ASSIGNING SUBCHANNELS IN AN OFDMA COMMUNICATION SYSTEM
    13.
    发明申请
    APPARATUS AND METHOD FOR ASSIGNING SUBCHANNELS IN AN OFDMA COMMUNICATION SYSTEM 有权
    用于在OFDMA通信系统中分配子信道的装置和方法

    公开(公告)号:US20090141681A1

    公开(公告)日:2009-06-04

    申请号:US12363315

    申请日:2009-01-30

    IPC分类号: H04W72/04

    摘要: An apparatus and method for assigning subchannels of a transmitter in a communication system. The method includes dividing an entire frequency band into m subcarrier groups; mapping each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; determining that a first data is needed to transmit in a first timing point; and assigning a first subchannel in the first timing point using a first subcarrier group index sequence. The first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point.

    摘要翻译: 一种用于在通信系统中分配发射机的子信道的装置和方法。 该方法包括将整个频带划分为m个子载波组; 将m个子载波组中的每一个映射到子载波组索引,其中,子信道包括从子载波组索引序列对应的m个子载波组中的每一个中选择的n个子载波; 确定需要第一数据以在第一定时点发送; 以及使用第一子载波组索引序列在第一定时点分配第一子信道。 第一子载波组索引序列与用于在第二定时点中分配第二子信道的第二子载波组索引序列不同。

    Apparatus and method for modulating ranging signals in a broadband wireless access communication system
    14.
    发明申请
    Apparatus and method for modulating ranging signals in a broadband wireless access communication system 审中-公开
    用于在宽带无线接入通信系统中调制测距信号的装置和方法

    公开(公告)号:US20050030931A1

    公开(公告)日:2005-02-10

    申请号:US10909463

    申请日:2004-08-02

    摘要: An method and apparatus for transmitting ranging information from at least one base station to subscriber stations and generating a ranging signal by the subscriber station using received ranging information in a Broadband Wireless Access (BWA) communication system including a plurality of neighbor cells and a plurality of the subscriber stations located in each cell region. A first code generator generates a first code using different first code information received from the base stations in the neighbor cells allocated the first code information. A second code generator generates a second code using second code information received by each of the subscriber stations existing in cell regions of the neighbor cells. A ranging signal generator generates a new ranging signal by combining the first code with the second code.

    摘要翻译: 一种用于从至少一个基站发送测距信息到用户站的方法和装置,并且在包括多个相邻小区的宽带无线接入(BWA)通信系统中使用接收到的测距信息由用户站生成测距信号, 位于每个小区区域中的用户站。 第一代码生成器使用从分配了第一代码信息的相邻单元中的基站接收的不同的第一代码信息来生成第一代码。 第二代码生成器使用存在于相邻单元的单元区域中的每个用户站接收的第二代码信息来生成第二代码。 测距信号发生器通过将第一代码与第二代码组合来生成新的测距信号。

    Apparatus and method for assigning subchannels in an OFDMA communication system
    15.
    发明授权
    Apparatus and method for assigning subchannels in an OFDMA communication system 有权
    在OFDMA通信系统中分配子信道的装置和方法

    公开(公告)号:US07633900B2

    公开(公告)日:2009-12-15

    申请号:US10894220

    申请日:2004-07-19

    IPC分类号: H04Q7/00

    CPC分类号: H04L5/023

    摘要: A wireless communication system that divides an entire frequency band into a plurality of subcarrier bands and includes a plurality of subchannels, each of which is a set of a predetermined number of subcarrier bands. As many subcarrier groups as the number of the base stations are generated by classifying the subcarrier bands in a predetermined period. For a particular base station, corresponding subcarrier bands are detected from each of the groups according to a predetermined sequence. The subcarrier bands detected from each of the groups are assigned as a subchannel for the particular base station.

    摘要翻译: 一种无线通信系统,其将整个频带划分为多个子载波频带,并且包括多个子信道,每个子信道是预定数量的子载波频带的集合。 通过在预定周期内对子载波频带进行分类来生成与基站的数量相同的子载波组。 对于特定基站,根据预定的顺序从每个组中检测相应的子载波频带。 将从每个组检测到的子载波频带分配为用于特定基站的子信道。

    Apparatus and method for cell acquisition and downlink synchronization acquisition in a wireless communication system
    16.
    发明授权
    Apparatus and method for cell acquisition and downlink synchronization acquisition in a wireless communication system 有权
    在无线通信系统中用于小区获取和下行同步采集的装置和方法

    公开(公告)号:US07561628B2

    公开(公告)日:2009-07-14

    申请号:US11248739

    申请日:2005-10-12

    IPC分类号: H04K1/10

    摘要: An apparatus and method for cell acquisition and downlink synchronization acquisition in an OFDMA wireless communication system are provided. In an SS apparatus in a broadband wireless communication system, a preamble subcarrier acquirer extracts subcarrier values having a preamble code from an FFT signal. A multiplier code-demodulates the subcarrier values by multiplying the subcarrier values by a preamble code. A correlator calculates a plurality of differential correlations in the code-demodulated signal. An IFFT processor IFFT-processes the differential correlations by mapping the differential correlations to subcarriers. A maximum value detector detects a maximum value from the IFFT signal and calculates a timing offset using an IFFT output index having the maximum value.

    摘要翻译: 提供了一种在OFDMA无线通信系统中用于小区获取和下行链路同步捕获的装置和方法。 在宽带无线通信系统的SS装置中,前导子载波采集器从FFT信号中提取具有前导码的子载波值。 乘法器通过将子载波值乘以前导码来解码副载波值。 相关器在码解调信号中计算多个差分相关。 IFFT处理器IFFT通过将差分相关映射到子载波来处理差分相关。 最大值检测器从IFFT信号检测最大值,并使用具有最大值的IFFT输出索引来计算定时偏移。

    Apparatus and method for controlling transmission power in communication systems using orthogonal frequency division multiple access scheme
    17.
    发明申请
    Apparatus and method for controlling transmission power in communication systems using orthogonal frequency division multiple access scheme 有权
    使用正交频分多址方案来控制通信系统中的发射功率的装置和方法

    公开(公告)号:US20060234715A1

    公开(公告)日:2006-10-19

    申请号:US11106222

    申请日:2005-04-14

    IPC分类号: H04Q7/20

    摘要: Disclosed is a method for controlling transmission power to be allocated to sub-carrier signals in a cellular communication system capable of dividing a frequency band into a plurality of sub-carrier bands and multiplexing the sub-carrier signals of the sub-carrier bands based on multiple frequency reuse factors. The method comprises the steps of determining a target Signal to Interference and Noise Ratio (SINR) of sub-carrier signals employing a first frequency reuse factor selected from the multiple frequency reuse factors; determining a weight of the sub-carrier signals employing the first frequency reuse factor and a weight of other sub-carrier signals employing frequency reuse factors other than the first frequency reuse factor corresponding to the target SINR; and applying the determined weights to the sub-carrier signals employing the first frequency reuse factor and the sub-carrier signals employing frequency reuse factors other than the first frequency reuse factor, thereby controlling the transmission power.

    摘要翻译: 公开了一种在蜂窝通信系统中控制分配给子载波信号的发送功率的方法,该蜂窝通信系统能够将频带划分成多个子载波频带,并且基于子载波频带的子载波信号进行复用 多频率复用因子。 该方法包括以下步骤:采用从多个频率复用因子中选择的第一频率复用因子确定子载波信号的目标信号与干扰和噪声比(SINR); 使用第一频率复用因子的子载波信号的权重和使用除了与目标SINR相对应的第一频率复用因子之外的频率复用因子的其他子载波信号的权重; 以及使用所述第一频率重用因子的子载波信号和采用除了所述第一频率重用因子之外的频率复用因子的子载波信号来应用所​​确定的权重,由此控制所述发射功率。

    System and method for providing services using the same frequency in a wireless communication system
    18.
    发明申请
    System and method for providing services using the same frequency in a wireless communication system 有权
    用于在无线通信系统中使用相同频率提供服务的系统和方法

    公开(公告)号:US20060148408A1

    公开(公告)日:2006-07-06

    申请号:US11324714

    申请日:2006-01-03

    IPC分类号: H04B17/00 H04B1/00

    CPC分类号: H04W72/042 H04L5/023

    摘要: A method for providing a single-frequency network (SFN) service between a base station (BS) and a mobile station (MS) in a wireless communication system. The BS sets a first segment indicator in a medium access control (MAC) message field before transmission, if a resource allocation scheme corresponds to general data transmission. The BS sets a second segment indicator in the MAC message before transmission, if the resource allocation scheme corresponds to single frequency-based data transmission. The MS receives the MAC message from the BS, and performs renumbering according to the first segment indicator or the second segment indicator included in the received MAC message.

    摘要翻译: 一种在无线通信系统中在基站(BS)和移动站(MS)之间提供单频网络(SFN)业务的方法。 如果资源分配方案对应于通用数据传输,则BS在传输之前在介质访问控制(MAC)消息字段中设置第一段指示符。 如果资源分配方案对应于基于单个频率的数据传输,BS在传输之前在MAC消息中设置第二分段指示符。 MS从BS接收MAC消息,根据接收到的MAC消息中包含的第一段指示符或第二段指示符进行重新编号。

    Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system
    20.
    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:US20050099939A1

    公开(公告)日:2005-05-12

    申请号:US10919037

    申请日:2004-08-16

    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 from signals on the subcarrier bands, forms a frame from 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 generates the pilot signal, performs an inverse fast Fourier transform (IFFT) on the pilot signal by applying an IFFT size which is less than 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,从子载波频带上的信号形成符号,从多个符号形成帧,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。 发射机产生导频信号,通过应用小于应用于数据信号的IFFT大小的IFFT大小对导频信号执行快速傅里叶逆变换(IFFT),并将IFFT处理的参考信号发送给接收机。