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1.发明授权公开(公告)号：US10805891B2
公开(公告)日：2020-10-13
申请号：US14864009
申请日：2015-09-24
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seunghoon Park , Hyunseok Ryu , Peng Xue , Chiwoo Lim , Sangwon Choi
Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate in comparison to the 4G communication system, such as long term evolution (LTE). A method for a terminal to establish synchronization with another terminal in a network supporting device-to-device (D2D) communication is provided. The method includes scanning, at the terminal, for synchronization signals from at least one base station, acquiring, when a synchronization signal is received from a base station, synchronization with the base station based on the synchronization signal, measuring power of the synchronization signal received from the base station, and transmitting, when data to be transmitted are generated in idle mode and the received signal power is less than a received signal power, a synchronization signal as a synchronization relaying terminal.
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公开(公告)号：US10051586B2
公开(公告)日：2018-08-14
申请号：US13922056
申请日：2013-06-19
Inventor： Seunghoon Park , Hyungjin Choi , Kyunghoon Won , Kyunghoon Lee , Kyungkyu Kim , Daegyun Kim , Chiwoo Lim
IPC: H04W56/00
Abstract: A terminal synchronization method and apparatus for use in a wireless communication system are provided. A synchronization method includes configuring, at the terminal, a synchronization signal reference time depending on whether a synchronization signal is received in an initial observation period as long as at least two frames, monitoring to receive the synchronization signal in an alternation period of a transmission period and a reception period, the alternation period following the initial observation period, updating the reference time depending on whether the synchronization signal is received in the reception period, transmitting the synchronization signal at the updated reference time in the transmission period, and updating the reference time depending on whether the synchronization signal is received in a dedicated observation period following the alternation period. The synchronization apparatus and method are advantageous in that synchronization is obtained without assistance of a base station, an Access Point (AP), etc.
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公开(公告)号：US09654959B2
公开(公告)日：2017-05-16
申请号：US14075115
申请日：2013-11-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Chiwoo Lim , Kyungkyu Kim , Daegyun Kim , Hyunseok Ryu , Seunghoon Park
Abstract: A network-assisted discovery method and apparatus for facilitating Device to Device (D2D) communication in the wireless communication system is provided. The network-assisted discovery method of a terminal in a wireless communication system, the method comprising, broadcasting a discovery signal information in a discovery signal transmission duration of the terminal, receiving assisted discovery information from a base station, determining whether the assisted discovery information comprises the discovery information of the terminal and determining whether to transmit a discovery transmission request message to the base station based on the result of the determination. The network-assisted discovery method and apparatus of the present disclosure is capable of mitigating the problems caused by resource collision and reducing power consumption of the device in the D2D wireless communication system.
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公开(公告)号：US09648628B2
公开(公告)日：2017-05-09
申请号：US13968889
申请日：2013-08-16
Inventor： Chiwoo Lim , Sang-Hyo Kim , Jin Whan Kang , Kyungkyu Kim , Daegyun Kim , Seunghoon Park , Chung-ki Cho
IPC: H04W72/08
CPC classification number: H04W72/082
Abstract: A link scheduling apparatus and method based on inter-link interference information sharing technique for use in a Device to Device (D2D) communication system is provided. A link scheduling method of a transmission node in a wireless communication system supporting direct communication between the transmission and recipient nodes includes receiving interference information of at least one recipient node from at least one recipient node, the interference occurring from at least one transmission node to at least one reception node, scheduling links based on the interference information; and transmitting data according to the scheduled links.
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公开(公告)号：US20160191214A1
公开(公告)日：2016-06-30
申请号：US14912063
申请日：2014-08-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungnam Hong , Min Sagong , Chiwoo Lim , Kyungwhoon Cheun
CPC classification number: H04L5/001 , H04B17/345 , H04L5/0007 , H04L25/00 , H04L25/0204 , H04L25/067 , H04L27/0008 , H04L27/106 , H04L27/2691 , H04L27/34 , H04W24/10
Abstract: Disclosed are a method and an apparatus for estimating channel information. A terminal estimates a channel coefficient for each of subcarriers included in each symbol of the received signals, calculates power of the received signal matched to each of the subcarriers, calculates an interference estimation parameter for each of the subcarriers based on the power of the received signal matched to each of the subcarriers and based on power of a channel coefficient for a subcarrier on which the received signal has maximum power among the subcarriers, and calculates a non-Gaussian characteristic parameter of an interference signal related to the received signals based on the interference estimation parameters calculated for the subcarriers of all the symbols of the received signals.
Abstract translation: 公开了一种用于估计信道信息的方法和装置。 终端估计接收信号的每个符号中包括的每个子载波的信道系数，计算与每个子载波匹配的接收信号的功率，基于接收信号的功率计算每个子载波的干扰估计参数 与每个子载波相匹配，并且基于接收信号在子载波中具有最大功率的子载波的信道系数的功率，并且基于干扰计算与接收信号相关的干扰信号的非高斯特性参数 针对接收信号的所有符号的子载波计算的估计参数。
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Patent Agency Ranking
6.发明授权公开(公告)号：US10299231B2
公开(公告)日：2019-05-21
申请号：US15025529
申请日：2014-09-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seunghoon Park , Hyunseok Ryu , Sangkyu Baek , Chiwoo Lim , Kyungkyu Kim , Youngbin Chang
Abstract: The present invention relates to a method and apparatus for synchronization between electronic devices and, more particularly, to a synchronization method and apparatus for wireless communication between electronic devices. As a synchronization method for an electronic device performing wireless communication with other electronic devices, the method may include: checking, when two or more reference synchronization signals are received within a preset period, whether the received reference synchronization signals are synchronized; determining, when the received reference synchronization signals are not synchronized, to operate as a device sending a reference synchronization signal of a class lower than or equal to that of the lowest class reference synchronization signal among the received reference synchronization signals; sending a reference synchronization signal at a preset time in a synchronization frame designed to preserve temporal orthogonality between classes; and performing synchronization between reference synchronization signals in cooperation with different devices having sent reference synchronization signals.
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7.发明授权Apparatus and method for demodulating hybrid modulation symbol in wireless communication system using hybrid modulation scheme 有权使用混合调制方案在无线通信系统中解调混合调制符号的装置和方法公开(公告)号：US09461865B2
公开(公告)日：2016-10-04
申请号：US14708105
申请日：2015-05-08
Applicant: Samsung Electronics Co., Ltd
Inventor： Min Sagong , Woomyoung Park , Seokki Ahn , Chiwoo Lim , Sungnam Hong
CPC classification number: H04L27/38 , H04L27/3488 , H04W72/044
Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates than 4th-Generation (4G) communication systems, such as Long Term Evolution. An apparatus and method for demodulating a hybrid modulation symbol is provided for use in a wireless communication using the hybrid modulation scheme. The apparatus includes a control channel receiver configured to acquire a hybrid modulation scheme change information from a control information received through a control channel, a constellation re-configurer configured to reconfigure a constellation diagram for use in demodulation with the hybrid modulation scheme change information provided by the control channel receiver, and a demodulator configured to demodulate a hybrid modulation symbol and a modified hybrid modulation symbol input when a reconfigured constellation diagram is received from the constellation re-configurer based on the reconfigured constellation diagram.
Abstract translation: 本公开涉及一种用于支持比第四代（4G）通信系统诸如长期演进的更高数据速率的前5代（5G）或5G通信系统。 提供一种用于解调混合调制符号的装置和方法，用于使用混合调制方案的无线通信。 所述装置包括：控制信道接收器，被配置为从通过控制信道接收的控制信息中获取混合调制方案改变信息;星座重配置器，被配置为使用混合调制方案改变信息重新配置用于解调的星座图，所述混合调制方案改变信息由 控制信道接收机和解调器，被配置为当基于重构的星座图从星座重新配置器接收到重新配置的星座图时，解调混合调制符号和修改的混合调制符号输入。
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8.发明申请SYNCHRONIZATION METHOD AND APPARATUS FOR WIRELESS COMMUNICATION BETWEEN ELECTRONIC DEVICES 审中-公开电子设备之间无线通信的同步方法和装置公开(公告)号：US20160212718A1
公开(公告)日：2016-07-21
申请号：US15025529
申请日：2014-09-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seunghoon Park , Hyunseok Ryu , Sangkyu Baek , Chiwoo Lim , Kyungkyu Kim , Youngbin Chang
CPC classification number: H04W56/001 , H04W4/06 , H04W56/00
Abstract: The present invention relates to a method and apparatus for synchronization between electronic devices and, more particularly, to a synchronization method and apparatus for wireless communication between electronic devices. As a synchronization method for an electronic device performing wireless communication with other electronic devices, the method may include: checking, when two or more reference synchronization signals are received within a preset period, whether the received reference synchronization signals are synchronized; determining, when the received reference synchronization signals are not synchronized, to operate as a device sending a reference synchronization signal of a class lower than or equal to that of the lowest class reference synchronization signal among the received reference synchronization signals; sending a reference synchronization signal at a preset time in a synchronization frame designed to preserve temporal orthogonality between classes; and performing synchronization between reference synchronization signals in cooperation with different devices having sent reference synchronization signals.
Abstract translation: 本发明涉及一种用于电子设备之间的同步的方法和装置，更具体地，涉及用于电子设备之间的无线通信的同步方法和装置。 作为与其他电子设备进行无线通信的电子设备的同步方法，该方法可以包括：当在预设周期内接收到两个或更多个参考同步信号时，检查接收到的参考同步信号是否同步; 确定当所接收的参考同步信号不同步时，作为在所接收的基准同步信号中发送低于或等于最低类参考同步信号的参考同步信号的装置进行操作; 在设计成保持等级之间的时间正交性的同步帧中在预设时间发送参考同步信号; 并且与具有发送的参考同步信号的不同设备协同执行参考同步信号之间的同步。
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9.发明申请METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNAL ON BASIS OF MULTIPLE ANTENNAS 有权基于多个天线发射和接收信号的方法和装置公开(公告)号：US20160212006A1
公开(公告)日：2016-07-21
申请号：US14915183
申请日：2014-08-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jaewon Kim , Jeongho Park , Min Sagong , Chiwoo Lim , Suryong Jeong , Sungnam Hong
CPC classification number: H04L27/366 , H04B7/06 , H04J11/0059 , H04L27/10 , H04L27/12 , H04L27/2601 , H04L27/32 , H04L27/34 , H04L27/364 , H04L27/367 , H04L27/38
Abstract: A method and a device for transmitting and receiving a signal on the basis of multiple antennas are provided.A transmitting device may include a radio frequency (RF) module transmitting a quadrature amplitude modulation (QAM) signal of a first symbol corresponding to a hybrid frequency shift keying and quadrature amplitude modulation (FQAM) mode and transmitting a QAM signal of a second symbol corresponding to a QAM mode through a second antenna; and a modulation module mapping the QAM signal of the first symbol to one frequency tone among the preset number of frequency tones according to a frequency shift keying (FSK) signal of the first symbol and mapping the second symbol to the frequency tone to which the first symbol is mapped.
Abstract translation: 提供了一种用于基于多个天线发送和接收信号的方法和装置。 发送装置可以包括发射对应于混合频移键控和正交幅度调制（FQAM）模式的第一符号的正交幅度调制（QAM）信号的射频（RF）模块，并且发送对应于第二符号的QAM信号 通过第二天线到QAM模式; 以及调制模块，根据所述第一符号的频移键控（FSK）信号将所述第一符号的QAM信号映射到所述预设频率音调中的一个频率音调，并将所述第二符号映射到所述第一 符号被映射。
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10.发明授权公开(公告)号：US09215737B2
公开(公告)日：2015-12-15
申请号：US13950945
申请日：2013-07-25
Applicant: Samsung Electronics Co. Ltd.
Inventor： Kyungkyu Kim , Daegyun Kim , Seunghoon Park , Chiwoo Lim
CPC classification number: H04W76/021 , H04W76/11
Abstract: A method of performing pairing by a transmission terminal in device to device communication is provided. The method includes classifying a plurality of link identifications for identifying a data transmission and reception channel a seed of at least one link identification; selecting an available candidate link identification seed among the seed of the at least one link identification, transmitting a pairing request message including seed information associated with the selected available candidate link identification seed, and receiving a pairing response message corresponding to the pairing request message. When allocating a connection ID in a device to device communication environment, even if a small number of devices exist, an overhead for searching for the connection ID is not great. Further, when many devices exist within a specific range, a probability of devices having the same connection ID is reduced. Accordingly, the device to device communication can be easily performed.
Abstract translation: 提供了一种在设备到设备通信中由传输终端执行配对的方法。 该方法包括对多个链路标识进行分类，用于识别数据发送和接收信道至少一个链路标识的种子; 在所述至少一个链路标识的种子中选择可用的候选链路标识种子，发送包括与所选择的可用候选链路标识种子相关联的种子信息的配对请求消息，以及接收与配对请求消息相对应的配对响应消息。 当将设备中的连接ID分配给设备通信环境时，即使存在少量设备，搜索连接ID的开销也不大。 此外，当在特定范围内存在许多设备时，具有相同连接ID的设备的概率降低。 因此，可以容易地执行设备到设备通信。
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