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    • 6. 发明授权
    • Compact transceiver architecture for achieving device to device (D2D) communication using uplink and downlink carrier frequencies
    • 用于使用上行链路和下行链路载波频率实现设备到设备(D2D)通信的紧凑型收发器架构
    • US09125183B2
    • 2015-09-01
    • US13409963
    • 2012-03-01
    • Young Hoon KwonJorge Fabrega Sanchez
    • Young Hoon KwonJorge Fabrega Sanchez
    • H04W76/02H04B1/403H04W88/06H04B7/155H04B1/00
    • H04W76/023H04B1/0028H04B1/403H04B7/15542H04W76/14H04W88/06
    • A system and method for device-to-device (D2D) communication is disclosed. A preferred embodiment comprises a frequency synthesizer configured to provide a first carrier frequency and a second carrier frequency, an up-converter coupled to the frequency synthesizer and configured to up-convert a first baseband signal into a cellular uplink signal when receiving the first carrier frequency from the frequency synthesizer, and configured to up-convert the first baseband signal into a first device-to-device signal when receiving the second carrier frequency from the frequency synthesizer, and a down-converter coupled to the frequency synthesizer and configured to down-convert a second device-to-device signal into a second baseband signal when receiving the first carrier frequency from the frequency synthesizer, and configured to down-convert a cellular downlink signal into the second baseband signal when receiving the second carrier frequency from the frequency synthesizer.
    • 公开了一种用于设备到设备(D2D)通信的系统和方法。 优选实施例包括被配置为提供第一载波频率和第二载波频率的频率合成器,耦合到频率合成器的上变换器,并且被配置为当接收到第一载波频率时将第一基带信号上变频为蜂窝上行链路信号 并且被配置为当从所述频率合成器接收到所述第二载波频率时,将所述第一基带信号上变频为第一设备到设备信号;以及下变换器,耦合到所述频率合成器, 当从所述频率合成器接收到所述第一载波频率时,将第二设备信号转换为第二基带信号,并且被配置为当从所述频率合成器接收到所述第二载波频率时将蜂窝下行链路信号下变频为所述第二基带信号 。
    • 9. 发明申请
    • System and Method for Direct Mobile Communications Power Control
    • 直接移动通信功率控制系统与方法
    • US20130244715A1
    • 2013-09-19
    • US13424078
    • 2012-03-19
    • Young Hoon KwonZhigang Rong
    • Young Hoon KwonZhigang Rong
    • H04W52/04H04W88/06H04W24/02
    • H04W52/242H04W52/243H04W52/244H04W52/367H04W52/383H04W76/14
    • A method for transmitting to a direct mobile communications (DMC) device by a user equipment operating in both a cellular mode and a DMC mode includes estimating a first pathloss of a first channel from the user equipment to a base station according to a difference between a known base station transmit power level and a received base station power level, and estimating a second pathloss of a second channel from the user equipment to the DMC device according to a difference between a known DMC device transmit power level and a received DMC device power level. The method also includes setting a transmit power level for transmission to the DMC device according to the first pathloss and the second pathloss, and transmitting a signal to the DMC device at the transmit power level.
    • 通过在蜂窝模式和DMC模式下操作的用户设备向直接移动通信(DMC)设备发送的方法包括:根据第一信道之间的差异来估计第一信道从用户设备到基站的第一路径损耗 已知基站发射功率电平和接收到的基站功率电平,并且根据已知的DMC设备发射功率电平和所接收的DMC设备功率电平之间的差异,从用户设备向DMC设备估计第二信道的第二路径损耗 。 该方法还包括根据第一路径损耗和第二路径损耗设置发送到DMC设备的发送功率电平,并以发送功率电平向DMC设备发送信号。
    • 10. 发明申请
    • System and Method for Distributed Power Control in a Communications System
    • 通信系统中分布式功率控制的系统和方法
    • US20120083203A1
    • 2012-04-05
    • US13242993
    • 2011-09-23
    • Kien Trung TruongYoung Hoon KwonPhilippe Sartori
    • Kien Trung TruongYoung Hoon KwonPhilippe Sartori
    • H04B17/02
    • H04W52/46
    • A system and method for distributed power control in a communications system are provided. A method for relay node operations includes transmitting a signal at a transmit power level on a first channel from a relay node to a user equipment, receiving a message comprising a first indication of channel quality of the first channel at the transmit power level, and determining a second indication of channel quality of a second channel between a communications controller and the relay node, where the first channel and the second channel are in a same multi-hop communication path. The method also includes altering the transmit power level of the first channel based on the first indication of channel quality and the second indication of channel quality to converge the channel quality of the first channel to a convergence value.
    • 提供了一种用于通信系统中的分布式功率控制的系统和方法。 一种用于中继节点操作的方法包括:将从第一信道的发射功率电平的信号从中继节点传送到用户设备;接收包括第一信道在发射功率电平的信道质量的第一指示的消息,以及确定 在通信控制器和中继节点之间的第二信道的信道质量的第二指示,其中第一信道和第二信道处于相同的多跳通信路径中。 该方法还包括基于信道质量的第一指示和信道质量的第二指示来改变第一信道的发射功率电平,以将第一信道的信道质量收敛到收敛值。