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公开(公告)号：US20200305198A1
公开(公告)日：2020-09-24
申请号：US16088191
申请日：2016-05-11
发明人： Hongchao LI , Klaus Ingemann PEDERSEN , Yuantao ZHANG , Jingyuan SUN , Zhuyan ZHAO , Deshan MIAO
摘要： A method and apparatus may include receiving configuration signaling from a network node to use a resource pool. The apparatus transmits using contention-based transmission. The method also includes selecting a preamble zone combination from the resource pool. The method may also include transmitting a preamble to the network node using the selected preamble zone combination. A preamble sequence index is used to identify the user equipment.
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公开(公告)号：US20200186306A1
公开(公告)日：2020-06-11
申请号：US16642234
申请日：2017-09-11
发明人： Jingyuan SUN , Yuantao ZHANG , Zhuyan ZHAO , Hong ZHOU
摘要： Embodiments of the present disclosure relate to methods and apparatuses for uplink transmission without an uplink grant. In example embodiments, a method implemented in a terminal device in a communication system is presented. According to this method, the terminal device determines a redundancy version (RV) pattern for a plurality of uplink transmissions. The RV pattern indicates a plurality of RV indices. At least one RV index in the respective plurality of RV indices is periodic in the RV pattern. The terminal device determines coded bits to be transmitted in the plurality of uplink transmissions based at least in part on the RV pattern. The terminal device transmits the coded bits to the network device in at least one transmission of the plurality of uplink transmissions without an uplink grant. By utilizing this periodic structure of the RV pattern, the network device may have more chance to receive the predefined or configured RV index with self-decodable transmissions for example, leading to a higher reliability and better decoding performance for the grant-free communication systems.
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公开(公告)号：US20190215822A1
公开(公告)日：2019-07-11
申请号：US16307732
申请日：2016-06-08
发明人： Yuantao ZHANG , Zhuyan ZHAO , Jingyuan SUN , Hongchao LI , Yanji ZHANG
CPC分类号： H04W72/048 , H04L1/1822 , H04L1/1887 , H04L5/0037 , H04L5/0053 , H04L5/0094 , H04W72/005 , H04W72/042 , H04W72/121 , H04W74/006
摘要： A method and apparatus to configure a resource pool for a plurality of user equipment configured with contention based transmission; configure a resource allocation within the resource pool for a contention based transmission by a user equipment of the plurality of user equipment configured for contention based transmissions, wherein the resource allocation is configured with more than one predefined or preconfigured sets of resource allocation granularities; and send information including the resource allocation towards the user equipment, wherein the information includes an indication of a set of the predefined or preconfigured sets of the resource allocation granularities that the user equipment is to use for the contention based transmission.
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公开(公告)号：US20240137885A1
公开(公告)日：2024-04-25
申请号：US18264993
申请日：2021-03-05
IPC分类号： H04W56/00
CPC分类号： H04W56/0045
摘要： Embodiments of the present disclosure propose a solution for availability of system broadcasted information such as GNSS information which can be used for deriving time and/or frequency domain compensation. According to embodiments of this present disclosure, a validity timer for system broadcasted information is introduced in both UE and network to guarantee the system broadcasted information availability status is synchronized in two nodes, and the system broadcasted information is valid to pre-compensate in time and/or frequency domain when the timer is running. In this way, the UE can be scheduled with correct timing and frequency estimation in UL transmission.
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公开(公告)号：US20230388079A1
公开(公告)日：2023-11-30
申请号：US18248726
申请日：2020-10-16
发明人： Jingyuan SUN , Rapeepat RATASUK , David BHATOOLAUL
IPC分类号： H04L5/00
CPC分类号： H04L5/0051 , H04L5/0094
摘要： In one embodiment, the method includes receiving, at a first device and from a second device, an indication of a resource range, related to a transmission of a demodulation reference signal associated with a control channel reception, including at least one of at least one entire resource element group, or at least one entire control channel element; and wherein the resource elements located in the resource range are dedicated for the transmission of the demodulation reference signal and unavailable for a transmission of control information from the second device; receiving the demodulation reference signal based on the indication; and decoding a control channel between the first and second devices based on the demodulation reference signal.
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6.发明申请公开(公告)号：US20190181884A1
公开(公告)日：2019-06-13
申请号：US16321911
申请日：2016-08-08
发明人： Jingyuan SUN , Deshan MIAO , Yi ZHANG , Keeth Saliya JAYASINGHE
CPC分类号： H03M13/1185 , H03M13/116 , H03M13/353 , H03M13/616 , H03M13/6306 , H03M13/6393 , H03M13/6516 , H04L1/0057 , H04L1/0063 , H04L1/0071 , H04L1/1819 , H04L27/2607
摘要： A method includes accessing information, and at least one of encoding or decoding the information using a parity check matrix based on a coding rate. A portion of a data part in the parity check matrix has been generated based on part or all of another matrix. Apparatus, computer programs, and computer program products are also described. The apparatus may be a wireless mobile device or a wireless network access node. A communication system may include one or more of the wireless mobile devices and one or more of the access nodes, each using a version of the method.
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公开(公告)号：US20240349217A1
公开(公告)日：2024-10-17
申请号：US18579393
申请日：2021-08-06
发明人： Gilsoo LEE , Tzu-Chung HSIEH , Jingyuan SUN
CPC分类号： H04W56/0045 , H04W56/0035 , H04W84/06
摘要： This disclosure presents methods to compensate for a phase drift in an uplink communication signal between a user equipment (UE) and a non-terrestrial network (NTN) node. Due to the change rate of velocity of the UE relative to the NTN node, a transmission signal can drift causing demodulation errors at the receiver. The UE can apply compensation processes to the transmission signal so that the received signal is closer to the original transmitted signal as compared to a non-compensated signal. Alternatively, the NTN node can apply compensation process to modify the reference phase to be closer to the phase of the received signal in the demodulation process. The location of the UE, as well as its relative elevation, can be used with the NTN node's location, to generate the compensation information. The compensation can be applied on a symbol-by-symbol basis or to a group of M symbols.
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公开(公告)号：US20240251275A1
公开(公告)日：2024-07-25
申请号：US18560845
申请日：2021-07-23
IPC分类号： H04W24/10
CPC分类号： H04W24/10
摘要： Embodiments of the present disclosure propose a solution for reporting with channel status waving. According to embodiments of this present disclosure, a terminal device determines one or more time durations for reporting and preconfiguring with the channel status waving. The terminal device transmits parameters related to channel status and/or adjusts its power in accordance with the one or more time durations. In this way, it can improve the reporting of channel status information and configuration efficiency with reduced overhead.
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公开(公告)号：US20240236895A9
公开(公告)日：2024-07-11
申请号：US18264993
申请日：2021-03-05
IPC分类号： H04W56/00
CPC分类号： H04W56/0045
摘要： Embodiments of the present disclosure propose a solution for availability of system broadcasted information such as GNSS information which can be used for deriving time and/or frequency domain compensation. According to embodiments of this present disclosure, a validity timer for system broadcasted information is introduced in both UE and network to guarantee the system broadcasted information availability status is synchronized in two nodes, and the system broadcasted information is valid to pre-compensate in time and/or frequency domain when the timer is running. In this way, the UE can be scheduled with correct timing and frequency estimation in UL transmission.
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公开(公告)号：US20200244395A1
公开(公告)日：2020-07-30
申请号：US16637789
申请日：2017-08-10
发明人： Jingyuan SUN , Dongyang DU , Wei JIANG , Xiangnian ZENG , Yi ZHANG
摘要： A method comprises receiving information on a selected redundancy version at a user device. The redundancy version is associated with block coding. The block coding may be LDPC. The method may comprise using the information when communicating with a base station. The position of the redundancy version may satisfy one or more criteria.
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