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公开(公告)号：US11962468B2
公开(公告)日：2024-04-16
申请号：US16968610
申请日：2018-12-29
发明人： Jiancheng Sun , Jiamin Liu
IPC分类号： H04L41/12 , H04L41/0893 , H04W40/22 , H04W40/24 , H04W88/04
CPC分类号： H04L41/12 , H04L41/0893 , H04W40/22 , H04W40/244 , H04W88/04
摘要： The embodiments of the present application provide a wireless backhaul network, a communication method and an apparatus. The wireless backhaul network comprises at least one tree topology structure, each of the at least one tree topology structure being composed of a serving base station node and at least one relay node, the root of the tree topology structure being the serving base station node; and any two nodes in the wireless backhaul network are in a child-parent relationship or non-child-parent relationship, and any two nodes, which are in the child-parent relationship, communicate by means of wireless connections.
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公开(公告)号：US11452026B2
公开(公告)日：2022-09-20
申请号：US16958506
申请日：2018-11-30
发明人： Jiamin Liu
摘要： Embodiments of the present application provide a method and device for transmitting data by means of a wireless backhaul network, for use in solving the problem in the prior art of inability to implement data transmission of a 5G wireless backhaul network due to that there is no network architecture for the 5G wireless backhaul network at present. In the embodiments of the present application, a terminal is connected to a wired backhaul access station by means of at least one path corresponding to a bearer, and transmits data with the wired backhaul access station by means of the at least one path; there is at least one wireless backhaul access station on any one path, each air interface of the terminal, the wired backhaul access station, and the wireless backhaul access station respectively corresponds to an underlying protocol combination, and the underlying protocol combination comprises an RLC layer, a MAC layer, and a PHY. The embodiments of the present application provide a network architecture for a 5G wireless backhaul network; a terminal transmits data with a wired backhaul access station by means of at least one path to implement data transmission of the 5G wireless backhaul network, so that the performance of the 5G wireless backhaul network is improved.
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公开(公告)号：US11223449B2
公开(公告)日：2022-01-11
申请号：US16316341
申请日：2017-07-07
发明人： Yali Zhao , Jiamin Liu , Fangli Xu , Bertrand Pierre
摘要： A data retransmission method and device are provided to resolve a problem of lacking in a retransmission scheme supporting retransmission via different connections in the prior art. In one embodiment of the invention, the method comprises: upon determining that a transmission node corresponding to a terminal satisfies a multi-transmission node retransmission criterion, selecting, by a target protocol layer in a transmitting device and responsible for managing transmission via multiple transmission nodes, and for a retransmission data packet corresponding to the terminal, at least one transmission node; and performing, via the selected transmission node, data packet retransmission. The embodiment is employed to select, upon determining that a transmission node corresponding to a terminal satisfies the multi-transmission node retransmission criterion, and for a retransmission data packet corresponding to the terminal, at least one transmission node, thereby implementing retransmission via different connects, further increasing reliability and throughput of transmission in a system.
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公开(公告)号：US11122152B2
公开(公告)日：2021-09-14
申请号：US16316299
申请日：2017-06-02
发明人： Jiamin Liu , Yali Zhao , Fangli Xu
摘要： Disclosed in the present application are a data processing method and apparatus. The method comprises: on a sending end, receiving a to-be-sent data packet transmitted from a higher layer, and performing “transport-layer layer-1” processing on the to-be-sent data packet, comprising assigning a sequence number; and then performing “transport-layer layer-2” processing, comprising: according to the size of a transmission resource obtained by means of scheduling, transferring the to-be-sent data packet to a physical layer and then sending out the to-be-sent data packet through an air interface; on a reception end, receiving the data packet that is sent from the air interface and then that is transmitted by the physical layer; performing “transport-layer layer-2” processing on the received data packet, comprising: transmitting the data packet transmitted by the physical layer, to the transport-layer layer-2 to perform processing.
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公开(公告)号：US10595261B2
公开(公告)日：2020-03-17
申请号：US15563907
申请日：2016-03-07
发明人： Yuan He , Jiamin Liu
摘要： The present invention relates to the technical field of communications, and particularly relates to a method for selecting a path and device for addressing a problem in which a backhaul requirement of a small station flexibly deployed in a UDN cannot be satisfied by a method providing a single-hop backhaul path via pre-configuration or an OAM configuration. The path selection method provide in an embodiment of the present application comprises: transmitting, by a first node, a path request message for acquiring a backhaul path from the first node to the target node; and determining, by the first node, at least one backhaul path based on the received path indication message. The embodiment of the present invention enables a flexible and convenient determination of a backhaul path for a plug-and-play access point without needing to configure a single-hop backhaul path for the access point work of a network side. In addition, the embodiment of the present invention can be determine a multi-hop backhaul path for the first node based on actual requirements, thus improving probability for finding a backhaul path satisfying a backhaul requirement of the first node.
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公开(公告)号：US10536980B2
公开(公告)日：2020-01-14
申请号：US14780975
申请日：2014-04-02
发明人： Yali Zhao , Jiamin Liu
摘要： A method, device and system for interacting link information, which are used for solving the problem that at present there is no solution for a network side to learn the link information about a terminal supporting D2D communications and how to distinguish D2D link information from D2N link information. A link information reporting method in the embodiments of the present invention comprises: a terminal supporting D2D communications determining link information which is required to be reported to a network side, wherein the link information comprises D2D link information and/or D2N link information; and the terminal sending the determined link information to the network side on a D2N link, and indicating a link corresponding to the link information to the network side. Using the method in the embodiments of the present invention enables the network side to learn the link information about the terminal supporting the D2D communications and to distinguish whether the received link information is for the D2D link or the D2N link, so that the network side can more accurately manage and schedule the D2D link and the D2N link.
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公开(公告)号：US10341174B2
公开(公告)日：2019-07-02
申请号：US15534473
申请日：2015-09-21
发明人： Yuan He , Fei Qin , Jiamin Liu
摘要： Disclosed are a network perception based service policy configuration method and network device, the method comprising: acquiring network perceived information of a first node; establishing an environment information map of the first node according to the network perceived information; acquiring characteristic information of the first node; configuring a service policy for the first node according to the characteristic information of the first node and the environment information map, thus configuring the service policy for the network node according to the network perceived information and the node characteristics.
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公开(公告)号：US20170311251A1
公开(公告)日：2017-10-26
申请号：US15518238
申请日：2015-09-29
发明人： Jiamin Liu , Fei Qin , Yuan He
CPC分类号： H04W48/20 , H04W8/02 , H04W8/26 , H04W24/02 , H04W36/0083 , H04W36/0094 , H04W68/12 , H04W76/11 , H04W88/12
摘要： A communications method, device, and system for solving the connection and communications efficiency problem due to the presence of a large number of cells. The method comprises: a first local controller determines that a user equipment needs to establish a data bearer; data bearer configuration information for transmitting user data is generated; the data bearer configuration information is transmitted to a first local gateway and/or at least a first small base station, so that the network element entity that has received the data bearer configuration information establishes a data transmission channel according to the data bearer configuration information, the user equipment belonging to the first local controller and the first local gateway, the first small base station providing services to the user equipment.
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公开(公告)号：US11729846B2
公开(公告)日：2023-08-15
申请号：US16967669
申请日：2019-02-01
发明人： Aijuan Liu , Jing Liang , Jiamin Liu
CPC分类号： H04W76/15 , H04L5/0032 , H04L69/18 , H04W76/11 , H04W80/02
摘要： The present disclosure provides a method for activating a packet data convergence protocol (PDCP) duplication and a node device. The method includes: receiving, by a second node, a notification message transmitted by a first node when the first node configures a PDCP duplication for a bearer; after the second node receives the notification message, changing or determining, by the second node, an activation or deactivation state of uplink (UL) PDCP duplication of the bearer.
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公开(公告)号：US11212045B2
公开(公告)日：2021-12-28
申请号：US16764656
申请日：2018-10-24
发明人： Jiamin Liu , Haiyang Quan
IPC分类号： H04L1/24 , H04W56/00 , H04L12/861
摘要： A synchronization method and apparatus, for verifying whether data cached by a base station and data cached by a terminal are synchronized. In embodiments of the present invention, a transmitting device and a receiving device generate cache check values on the basis of a predetermined acquisition mode; the receiving device compares the cache check values, and according to the comparison result, determines whether a decompression cache area and a compression cache area are synchronized. According to the present invention, a transmitting device and a receiving device sample some data from a data cache area by means of the same acquisition mode to generate cache check values, and the receiving device compares the cache check values, and according to the comparison result, determines whether the decompression cache area and the compression cache area are synchronized.
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