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    • 51. 发明申请
    • BASE STATION APPARATUS AND COMMUNICATION CONTROL METHOD
    • 基站装置和通信控制方法
    • US20100091724A1
    • 2010-04-15
    • US12527945
    • 2008-02-21
    • Hiroyuki IshiiKenichi Higuchi
    • Hiroyuki IshiiKenichi Higuchi
    • H04W72/04
    • H04W52/34H04L5/0007H04L5/0037H04L5/0053H04W52/32H04W72/1247
    • A base station apparatus is disclosed that includes a selection unit selecting user equipment terminals to which radio resources are allocated based on priority levels indicating a priority order of allocating the radio resources for a shared channel and a resource determination unit determining a transmission power level of a control channel and resources for the control channel, the control channel indicating communications of the shared channel to the selected user equipment terminals. In the base station apparatus, when the sum of the transmission power of the control channel related to the selected user equipment terminals exceeds a predetermined first threshold value or when a sum of control resources for the control channel related to the selected user equipment terminals exceeds a predetermined second threshold value, the resource determination unit transmits the control channel to some user equipment terminals among the selected user equipment terminals.
    • 公开了一种基站装置,其包括:选择单元,基于指示分配用于共享信道的无线电资源的优先级顺序的优先级,选择向其分配无线资源的用户设备终端;以及资源确定单元,确定发送功率级别 用于控制信道的控制信道和资源,所述控制信道指示所述共享信道到所选择的用户设备终端的通信。 在基站装置中,当与所选择的用户设备终端相关的控制信道的发送功率的总和超过预定的第一阈值时,或者当与所选择的用户设备终端相关的控制信道的控制资源的总和超过 预定的第二阈值,所述资源确定单元将所述控制信道发送到所选择的用户设备终端中的一些用户设备终端。
    • 54. 发明申请
    • BASE STATION
    • 基站
    • US20100085925A1
    • 2010-04-08
    • US12525487
    • 2008-01-28
    • Yoshihisa KishiyamaKenichi HiguchiMamoru Sawahashi
    • Yoshihisa KishiyamaKenichi HiguchiMamoru Sawahashi
    • H04W72/04
    • H04W16/28H04B7/0608H04B7/0613H04B7/0684H04B7/0691H04L5/0023H04L5/0048H04L5/0053
    • A base station communicating with a user device using multiple antennas in a system where a subframe is composed of multiple slots each composed of multiple basic time units is disclosed. The base station includes a first mapping unit configured to map one or more reference signals used for demodulation of one or more L1/L2 control channels and one or more data channels to be transmitted from one or more of the antennas within a predetermined number of basic time units from the beginning of each subframe; and a second mapping unit configured to map reference signals used for demodulation of data channels to be transmitted from other ones of the antennas to one or more basic time units following the basic time units to which the reference signals used for demodulation of the L1/L2 control channels and the data channels are mapped.
    • 公开了一种在系统中使用多个天线与用户设备通信的基站,其中子帧由多个基本时间单元组成的多个时隙组成。 基站包括第一映射单元,被配置为将用于解调一个或多个L1 / L2控制信道的一个或多个参考信号和要在一个或多个天线中发射的一个或多个数据信道映射到预定数量的基本 每个子帧开始的时间单位; 以及第二映射单元,被配置为将用于解调要从其他天线发送的数据信道的参考信号映射到用于L1 / L2的解调的参考信号的基本时间单位之后的一个或多个基本时间单元 控制通道和数据通道映射。
    • 57. 发明申请
    • TRANSMISSION POWER CONTROL METHOD, USER TERMINAL, AND BASE STATION
    • 传输功率控制方法,用户终端和基站
    • US20100029319A1
    • 2010-02-04
    • US12443808
    • 2007-10-01
    • Kenichi HiguchiMamoru Sawahashi
    • Kenichi HiguchiMamoru Sawahashi
    • H04B7/00
    • H04W52/243H04W52/146H04W52/286H04W52/48
    • A transmission power control method in a communication system including a base station and a user terminal which performs transmission power control in packet-based radio access includes the steps of transmitting, by the user terminal, a packet; evaluating, by the base station, whether interference caused by the packet is above a predetermined threshold, if the packet is transmitted from another cell; generating, by the base station, transmission power control information for controlling transmission power of the user terminal based on the evaluation result of the interference and transmitting the transmission power control information to the user terminal; and determining, by the user terminal, whether the user terminal controls transmission power based on the transmission power control information, upon transmitting a retransmission packet corresponding to the packet.
    • 包括在基于分组的无线电接入中进行发送功率控制的基站和用户终端的通信系统中的发送功率控制方法包括以下步骤:由用户终端发送分组; 如果从另一小区发送分组,则由基站评估由分组引起的干扰是否高于预定阈值; 基站根据干扰的评价结果​​生成用于控制用户终端的发送功率的发送功率控制信息,向用户终端发送发送功率控制信息; 以及在发送与所述分组对应的重发分组时,由所述用户终端确定所述用户终端是否基于所述发送功率控制信息来控制发送功率。
    • 58. 发明申请
    • TRANSMITTING DEVICE, RECEIVING DEVICE, AND METHOD USED IN MOBILE COMMUNICATION SYSTEM EMPLOYING OFDM
    • 发送设备,接收设备和使用OFDM的移动通信系统中使用的方法
    • US20100027512A1
    • 2010-02-04
    • US12521208
    • 2007-12-27
    • Yoshihisa KishiyamaKenichi HiguchiMamoru Sawahashi
    • Yoshihisa KishiyamaKenichi HiguchiMamoru Sawahashi
    • H04W72/04
    • H04L27/2613H04L5/0044H04L5/0051H04L5/0058H04W52/325H04W52/346
    • A transmitting device includes a transmission signal generating unit configured to generate a transmission signal by inverse-Fourier-transforming reference signals and data signals mapped to subcarriers and a transmitting unit configured to wirelessly transmit the transmission signal. In the transmitting device, a total power level allocated to signals to be transmitted in a time slot is equal to a total power level allocated to signals to be transmitted in any other time slot, and a power density per unit bandwidth of the reference signals is greater than a power density per unit bandwidth of the data signals. This configuration makes it possible to equalize the total transmission power level of all time slots and thereby to improve the power amplification efficiency. Also, with this configuration, since the reference signals are transmitted with a higher power than that for other signals, it is possible to improve the accuracy of channel estimation.
    • 发送装置包括发送信号生成单元,被配置为通过对映射到子载波的参考信号和数据信号进行逆傅立叶变换来产生发送信号,以及发送单元,被配置为无线发送发送信号。 在发送装置中,分配给时隙中要发送的信号的总功率电平等于分配给在任何其他时隙中发送的信号的总功率电平,并且参考信号的每单位带宽的功率密度为 大于数据信号的每单位带宽的功率密度。 该配置使得可以使所有时隙的总发送功率电平均衡,从而提高功率放大效率。 此外,利用这种配置,由于以比其他信号更高的功率发送参考信号,因此可以提高信道估计的精度。
    • 60. 发明申请
    • MOBILE STATION, BASE STATION AND COMMUNICATIONS METHOD
    • 移动站,基站和通信方法
    • US20090303937A1
    • 2009-12-10
    • US11917342
    • 2006-06-13
    • Mamoru SawahashiKenichi Higuchi
    • Mamoru SawahashiKenichi Higuchi
    • H04W72/12
    • H04W74/02H04B1/707H04L1/0003H04L1/0009H04L1/1867H04L5/0016H04L5/0037H04L5/0046H04L5/0048H04L5/0053H04L5/0064H04W28/04H04W52/146H04W52/325H04W72/12
    • A disclosed mobile station includes a multiplexing portion that multiplexes a contention-based channel and a non-contention-base channel, and a transmitting portion that transmits the multiplexed contention-based and non-contention-based channels to a base station. In the mobile station, the contention-based channel and the non-contention-based channel are distinguished from whether scheduling is performed before transmission in the base station. The contention-based channel includes one or more of a fast access channel, a reservation channel, and a synchronization channel. The non-contention-based channel includes one or more of an uplink shared data channel and an uplink shared control channel. The fast access channel includes traffic data, or control data having a data size smaller than a predetermined size, or a combination thereof. The reservation channel includes information to request scheduling the non-contention-based channel. The uplink data channel includes the traffic data, or the control data, or a combination thereof.
    • 所公开的移动站包括多路复用基于竞争的信道和非竞争的基站信道的复用部分和将基于多路复用的基于竞争的和非基于竞争的信道发送到基站的发送部分。 在移动站中,基于竞争的信道和非竞争的信道与在基站的发送之前是否进行调度不同。 基于争用的信道包括快速接入信道,预留信道和同步信道中的一个或多个。 基于非竞争的信道包括上行链路共享数据信道和上行链路共享控制信道中的一个或多个。 快速访问信道包括业务数据或具有小于预定大小的数据大小的控制数据,或其组合。 预约信道包括用于请求调度非基于竞争的频道的信息。 上行链路数据信道包括业务数据或控制数据,或其组合。