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公开(公告)号：US10104669B2
公开(公告)日：2018-10-16
申请号：US14933945
申请日：2015-11-05
发明人： Shu-Tsz Liu , Yi-Ting Lin , Yi-Hsueh Tsai , Chun-Che Chien
摘要： The invention relates to a user equipment of device-to-device communications and a resource selection method thereof. The user equipment includes a resource selection device and a transceiver device. The resource selection device is configured to create a state machine model, which includes an in-coverage state and an out-of-coverage state corresponding to a base station. The resource selection device is also configured to select a corresponding device-to-device communication resource in response to a current state of the user equipment during transferring of the user equipment from the in-coverage state to the out-of-coverage state or from the out-of-coverage state to the in-coverage state. The transceiver device is configured to perform a device-to-device communication with another user equipment according to the corresponding device-to-device communication resource. The resource selection method includes the steps corresponding to the operations of the user equipment.
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2.发明授权Device-to-device user equipment for a wireless communication system and resource scheduling method thereof 有权用于无线通信系统的设备到设备用户设备及其资源调度方法公开(公告)号：US09554410B2
公开(公告)日：2017-01-24
申请号：US14656654
申请日：2015-03-12
发明人： Tsung-Yu Tsai , Hsuan-Li Lin , Shu-Tsz Liu
CPC分类号： H04W76/023 , H04W72/1247 , H04W76/14
摘要： A device to device (D2D) user equipment (UE) used for a wireless communication system is provided. The D2D UE is located in a network topology including a plurality of transmitting ends and a plurality of receiving ends. The D2D UE may be a transmitting end or a receiving end. The receiving ends perform a resource scheduling procedure several times according to transmitting end sequences echoed from the transmitting ends to schedule the appropriate resources for the transmitting ends so as to prevent a transmission collision.
摘要翻译： 提供了一种用于无线通信系统的设备到设备（D2D）用户设备（UE）。 D2D UE位于包括多个发送端和多个接收端的网络拓扑中。 D2D UE可以是发送端或接收端。 接收端根据从发送端回送的发送结束序列多次执行资源调度过程，以调度用于发送端的适当资源，以防止传输冲突。
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公开(公告)号：US09756676B2
公开(公告)日：2017-09-05
申请号：US14706944
申请日：2015-05-07
发明人： Shu-Tsz Liu , Chun-Che Chien , Hsien-Tsung Hsu
CPC分类号： H04W76/20 , H04W72/0406 , H04W76/11 , H04W76/14 , H04W76/19 , H04W84/18 , H04W88/02 , H04W88/08
摘要： A base station and a device to device (D2D) user equipment (UE), a transmission method, a report method and a resource adjustment method for a wireless communication system are provided. When the D2D UE operates as a transmitting end, it is able to determine a transmission mode according to a transmission condition (e.g., whether a radio link failure or a collision occurs when a D2D transmission is being performed, or whether the telecommunication operators of the transmitting end and the corresponding receiving end are the same). When the D2D UE operates as a receiving end, it is able to transmit a report message carrying received signal quality to the base station after receiving D2D data. Accordingly, the base station is able to adjust a D2D resource configuration according to the report message.
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公开(公告)号：US20190149624A1
公开(公告)日：2019-05-16
申请号：US15832726
申请日：2017-12-05
发明人： Shu-Han Liao , Shu-Tsz Liu , Hong-Hai Hsu , Yi-Hsueh Tsai
摘要： An LPWAN system and positioning method thereof are provided. An LPWAN system includes an application server and an end device. The application server receives a positioning request from the end device and transmits a positioning initial information to a plurality of network devices. Signal measurements are made between the end device and the network devices for deciding a plurality of path loss information. The application server determines an end position of the end device according to the path loss information and a plurality of network positions of the network devices.
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公开(公告)号：US09974036B2
公开(公告)日：2018-05-15
申请号：US14932961
申请日：2015-11-04
发明人： Chun-Che Chien , Shu-Tsz Liu
CPC分类号： H04W56/0015 , H04W56/0035 , H04W76/14
摘要： A direct communication network system and a signal synchronization method thereof are provided. The direct communication network system includes a first direct communication apparatus and a second direct communication apparatus. The first direct communication apparatus synchronizes with a base station within communication coverage of the base station. The second direct communication apparatus synchronizes with the first direct communication apparatus outside the communication coverage of the base station according to at least one first synchronization signal of the first direct communication apparatus. The first direct communication apparatus determines an abnormal synchronization status with the base station, and adjusts a transmitting status of the at least one first synchronization signal. The second direct communication apparatus switches synchronization to a third direct communication apparatus according to the transmitting status of the at least one first synchronization signal and synchronizes with the third direct communication apparatus via at least one second synchronization signal.
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公开(公告)号：US09854514B2
公开(公告)日：2017-12-26
申请号：US14494550
申请日：2014-09-23
发明人： Hsuan-Li Lin , Tsung-Yu Tsai , Chun-Che Chien , Shu-Tsz Liu , Yi-Hsueh Tsai
CPC分类号： H04W52/0206 , H04W48/12 , H04W84/045 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/166
摘要： A user equipment, a small cell and an operation method thereof are provided. The small cell includes a processor and a transceiver. The processor is configured to generate a maintaining downlink signal when the small cell is in an off-state. The maintaining downlink signal utilizes fewer radio resources compared to a normal downlink signal which is generated when the small cell is in an on-state. The transceiver is electrically connected to the processor and configured to continuously transmit the maintaining downlink signal when the small cell is in the off-state and receive an uplink signal from the user equipment. The processor further switches the small cell from the off-state to the on-state according to the uplink signal.
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7.发明授权公开(公告)号：US09585154B2
公开(公告)日：2017-02-28
申请号：US14685890
申请日：2015-04-14
发明人： Jian-Ya Chu , Yi-Hsueh Tsai , Chun-Che Chien , Hsuan-Li Lin , Shu-Tsz Liu
CPC分类号： H04W72/048 , H04W4/06 , H04W8/005 , H04W48/12 , H04W56/001 , H04W88/04
摘要： A direct communication network system for resource synchronization communication is provided. The direct communication network system includes a base station and a first user equipment. The base station broadcasts a pre-authorized setting. The first user equipment receives the pre-authorized setting and listens to a first resource synchronization message broadcasted from the base station according to the pre-authorized setting. The first user equipment directly communicates with a second user equipment according to the first resource synchronization message.
摘要翻译： 提供了一种用于资源同步通信的直接通信网络系统。 直接通信网络系统包括基站和第一用户设备。 基站广播预授权设置。 第一用户设备接收预先授权的设置，并且根据预先授权的设置收听从基站广播的第一资源同步消息。 第一用户设备根据第一资源同步消息直接与第二用户设备进行通信。
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公开(公告)号：US09456404B2
公开(公告)日：2016-09-27
申请号：US14454638
申请日：2014-08-07
发明人： Shu-Tsz Liu , Tsung-Yu Tsai , Hsuan-Li Lin
CPC分类号： H04W48/12 , H04L1/00 , H04L5/0094 , H04L2001/0097 , H04W72/042 , H04W76/14 , H04W92/18
摘要： A wireless communication system and a resource allocation method thereof are provided. The wireless communication system includes a base station and a plurality of user equipments. The base station or one of the user equipments is configured to transmit resource allocation information to the user equipments. The user equipments are configured to perform a device-to-device communication and/or perform a device-to-device discovery according to the resource allocation information. The resource allocation method is applied to the wireless communication system to perform the aforesaid operations.
摘要翻译： 提供了一种无线通信系统及其资源分配方法。 无线通信系统包括基站和多个用户设备。 基站或用户设备之一被配置为向用户设备发送资源分配信息。 用户设备被配置为根据资源分配信息执行设备到设备通信和/或执行设备到设备发现。 该资源分配方法被应用于无线通信系统以执行上述操作。
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9.发明授权公开(公告)号：US09319827B2
公开(公告)日：2016-04-19
申请号：US14454650
申请日：2014-08-07
发明人： Shu-Tsz Liu , Tsung-Yu Tsai , Hsuan-Li Lin
摘要： A user equipment and a device-to-device communication selection method thereof are provided. The user equipment is configured to receive device-to-device communication information and discover device-to-device communication nodes. The user equipment is further configured to determine at least one selection procedure from a plurality of selection procedures according to the device-to-device communication information and select at least one first device-to-device communication target from the discovered device-to-device communication node(s) according to the determined selection procedure(s). The device-to-device communication selection method is for use in the user equipment to execute the aforesaid operations.
摘要翻译： 提供了用户设备和设备到设备的通信选择方法。 用户设备被配置为接收设备到设备通信信息并发现设备到设备通信节点。 用户设备还被配置为根据设备到设备通信信息从多个选择过程中确定至少一个选择过程，并从所发现的设备到设备中选择至少一个第一设备到设备通信目标 通信节点根据确定的选择过程。 设备到设备通信选择方法在用户设备中用于执行上述操作。
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10.发明授权Receiver with inphase-quadrature imbalance compensation and inphase-quadrature imbalance compensation method thereof 有权具有同相正交不平衡补偿和相间正交不平衡补偿方法的接收机公开(公告)号：US08971466B2
公开(公告)日：2015-03-03
申请号：US13935196
申请日：2013-07-03
发明人： Tsung-Yu Tsai , Chun-Che Chien , Shu-Tsz Liu , You-Hsien Lin , Terng-Yin Hsu , Wei-Chi Lai , Shao-Ying Yeh
CPC分类号： H04L27/3863 , H04L27/2657 , H04L2027/003 , H04L2027/0083
摘要： A receiver with Inphase-Quadrature (I-Q) imbalance compensation and an I-Q imbalance compensation method thereof are provided. The receiver chooses a first receiving signal which includes a first data and a first noise, as well as a second receiving signal which includes a second data and a second noise from a plurality of receiving signals. The first data have a first positive frequency data and a first negative frequency data, while the second data have a second positive frequency data and a second negative frequency data. The receiver calculates an I-Q imbalance compensation parameter according to the first receiving signal and the second receiving signal, and compensates for a third receiving signal according to the I-Q imbalance compensation parameter. The I-Q imbalance compensation method is applied to the receiver to implement the aforesaid operations.
摘要翻译： 提供具有相位正交（I-Q）不平衡补偿和I-Q不平衡补偿方法的接收机。 接收机选择包括第一数据和第一噪声的第一接收信号，以及包括来自多个接收信号的第二数据和第二噪声的第二接收信号。 第一数据具有第一正频率数据和第一负频率数据，而第二数据具有第二正频率数据和第二负频率数据。 接收机根据第一接收信号和第二接收信号计算I-Q不平衡补偿参数，并根据I-Q不平衡补偿参数补偿第三接收信号。 I-Q不平衡补偿方法适用于接收机，以实现上述操作。
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