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    • 11. 发明申请
    • Method and apparatus for selecting a communication mode for performing user requested data transfers
    • 用于选择用于执行用户请求的数据传送的通信模式的方法和装置
    • US20060234762A1
    • 2006-10-19
    • US11209096
    • 2005-08-22
    • Fatih Ozluturk
    • Fatih Ozluturk
    • H04M1/00
    • H04W88/02H04M2250/06
    • A method and apparatus for downloading and uploading digital data using a dual-mode wireless transmit/receive unit (WTRU). When in a first mode, the WTRU communicates with a first network, such as a universal mobile telecommunication system (UMTS). While the WTRU is in the first mode, a user of the WTRU may request the transfer of data to or from the WTRU, (i.e., a download or an upload). The user of the WTRU may also specify whether the data transfer is to occur when the WTRU is in the first mode, or in a second mode when the WTRU is communicating with a second network, such as a wireless local area network (WLAN). The data transfer may occur on a real-time basis or at a later time. In an alternative embodiment, predetermined criteria may be established for implementing automatic WTRU mode selection when data is transferred.
    • 一种使用双模式无线发射/接收单元(WTRU)下载和上传数字数据的方法和装置。 当处于第一模式时,WTRU与诸如通用移动电信系统(UMTS)的第一网络通信。 当WTRU处于第一模式时,WTRU的用户可以请求向/从WTRU传输数据(即下载或上传)。 WTRU的用户还可以指定当WTRU处于第一模式时是否发生数据传输,或者当WTRU正在与诸如无线局域网(WLAN)的第二网络通信时处于第二模式。 数据传输可能会在实时的基础上或以后发生。 在替代实施例中,当传输数据时,可以建立用于实现自动WTRU模式选择的预定标准。
    • 20. 发明授权
    • Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system
    • MIMO-OFDM系统中子载波和天线选择的方法和装置
    • US08270512B2
    • 2012-09-18
    • US11082286
    • 2005-03-17
    • Fatih OzluturkPhilip J. PietraskiAykut Bultan
    • Fatih OzluturkPhilip J. PietraskiAykut Bultan
    • H04B7/02
    • H04W52/262H04B7/046H04L1/0003H04L1/0009H04L5/0023H04L5/0025H04L5/0046H04L5/006H04L25/0206H04W52/42
    • A method and apparatus for radio resources control in a multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system are disclosed. Channel metric is calculated for each of a plurality of transmit antennas. Sub-carriers are allocated to each transmit antenna in accordance with the channel metric of each transmit antenna. Signals are transmitted using the allocated sub-carriers at each antenna. Adaptive modulation and coding and transmit power control of each sub-carrier may be further implemented in accordance with the channel metric. Power control may be implemented per antenna basis or per sub-carrier basis. In performing power control, a subset of transmit antennas may be selected and waterpouring may be applied only to the selected antennas. Waterpouring may be based on SNR instead of channel response.
    • 公开了一种用于多输入多输出(MIMO)正交频分复用(OFDM)通信系统中的无线资源控制的方法和装置。 为多个发射天线中的每一个计算信道度量。 根据每个发射天线的信道度量,将子载波分配给每个发射天线。 在每个天线处使用分配的子载波来发送信号。 可以根据信道度量进一步实现每个子载波的自适应调制和编码和发射功率控制。 功率控制可以基于每个天线或每个子载波来实现。 在执行功率控制时,可以选择发射天线的子集,并且可以仅对所选择的天线进行浇水。 灌水可以基于SNR而不是通道响应。