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公开(公告)号：US20190238274A1
公开(公告)日：2019-08-01
申请号：US16316341
申请日：2017-07-07
Inventor： Yali ZHAO , Jiamin LIU , Fangli XU , Bertrand PIERRE
CPC classification number: H04L1/1809 , H04L1/1642 , H04L1/18 , H04W8/22 , H04W24/10 , H04W76/15 , H04W80/02
Abstract: 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：US20190174549A1
公开(公告)日：2019-06-06
申请号：US15752890
申请日：2016-07-12
Inventor： Fangli XU , Jianhua LIU , Xinyu LI
Abstract: The present invention provides an MTC UE random access method and device. The method comprises: receiving indication information sent by a network side, the indication information being used for indicating at least one coverage enhancement level (CE LEVEL) and a physical random access channel (PRACH) resource corresponding thereto; selecting one CE LEVEL from a CE LEVEL of an MTC UE and the CE LEVEL indicated by the network side, and determining a PRACH resource corresponding to the CE LEVEL; and carrying out random access on the PRACH resource corresponding to the selected CE LEVEL. The present invention provides a mechanism of how to select a PRACH resource when a network side triggers an MTC UE to initiate a contention-free random access (CFRA) process.
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13.发明申请公开(公告)号：US20160323869A1
公开(公告)日：2016-11-03
申请号：US15107693
申请日：2014-12-24
Inventor： Fangli XU , Erlin ZENG , Yali ZHAO , Jing FU
CPC classification number: H04W72/048 , H04L5/0007 , H04W72/02 , H04W72/0473 , H04W72/085 , H04W72/087
Abstract: Disclosed are a D2D resource allocation method, and data transmission method and device, the D2D resource allocation method comprising: determining a D2D resource configuration corresponding to the quality of service (QoS) level of a D2D service; and transmitting to a user equipment (UE) the information of the D2D resource configuration corresponding to the service quality level of the D2D service. The D2D data transmission method comprises: according to the received information of the D2D resource configuration corresponding to the service quality level of the D2D service, selecting a transmission resource for the D2D service to be transmitted; and transmitting the data of the D2D service over the selected transmission resource. The D2D service transmission requirement is considered in allocating and selecting D2D resources, thus further improving the system D2D resource allocation efficiency without affecting the D2D service transmission requirement.
Abstract translation: 公开了一种D2D资源分配方法和数据传输方法和装置，所述D2D资源分配方法包括：确定与D2D服务的服务质量（QoS）级别相对应的D2D资源配置; 以及向所述用户设备（UE）发送对应于所述D2D服务的服务质量等级的所述D2D资源配置的信息。 D2D数据传输方法包括：根据D2D资源配置的接收信息，对应于D2D业务的业务质量等级，选择要发送的D2D业务的传输资源; 以及通过所选择的传输资源发送D2D服务的数据。 在分配和选择D2D资源时考虑D2D业务传输要求，进一步提高系统D2D资源分配效率，不影响D2D业务传输需求。
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公开(公告)号：US20150334705A1
公开(公告)日：2015-11-19
申请号：US14651658
申请日：2013-12-26
IPC: H04W72/04
CPC classification number: H04W72/0446 , H04W36/04 , H04W36/22 , H04W72/048 , H04W84/045 , Y02D70/1262 , Y02D70/1264
Abstract: Disclosed are a method, device and system for transmitting uplink information, which are used for solving the problem that the existing UE uplink transmission mechanism may increase the load of a Macro eNB and increase the uplink interference among UEs, and is not beneficial to power saving of UEs. The method in the embodiments of the present application comprises: a macro eNB determining an uplink transmitting node used for receiving uplink information about a UE this time from a transmission node connected to the UE; determining the effective time of the uplink transmission node determined this time; and after the effective time of the uplink transmitting node determined this time has arrived, receiving the uplink information sent by the UE through the uplink transmitting node determined this time. Under a heterogeneous network, the embodiments of the present application can flexibly determine an appropriate uplink transmission node to transmit uplink information, thereby reducing the load of the Macro eNB, reducing the interference among various UEs, improving the system throughput, and saving the electric quantity of the UEs.
Abstract translation: 本发明公开了一种用于发送上行链路信息的方法，装置和系统，用于解决现有UE上行传输机制可能增加宏eNB的负载并增加UE之间的上行干扰的问题，并且不利于省电 的UE。 本申请实施例中的方法包括：宏eNB，从连接到该UE的传输节点确定此次用于接收关于UE的上行链路信息的上行链路发送节点; 确定此时确定的上行传输节点的有效时间; 并且在此时间确定的上行链路发送节点的有效时间到达之后，通过本次确定的上行链路发送节点接收UE发送的上行链路信息。 在异构网络中，本申请的实施例可以灵活地确定适当的上行传输节点传输上行链路信息，从而减少宏eNB的负载，减少各种UE之间的干扰，提高系统吞吐量，并节省电量 的UE。
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公开(公告)号：US20210099554A1
公开(公告)日：2021-04-01
申请号：US16316299
申请日：2017-06-02
Inventor： Jiamin LIU , Yali ZHAO , Fangli XU
Abstract: 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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Patent Agency Ranking
16.发明申请公开(公告)号：US20200266962A1
公开(公告)日：2020-08-20
申请号：US16639879
申请日：2018-08-03
Inventor： Li CHEN , Fangli XU , Pierre BERTRAND , Jiamin LIU , Xinyu LI
Abstract: The present disclosure provides a retransmission activating/deactivating method, a base station, a user equipment and a device. The method includes: determining a correspondence relationship between a bearer which is allowed for retransmission under the first base station and a bit of a preset field of media access control (MAC) control element (CE) of the first base station for activating/deactivating retransmission; where the preset field is used to indicate activation/deactivation retransmission of the bearer which is allowed for retransmission; and, when determining to activate/deactivate retransmission of the bearer which is allowed for retransmission under the first base station, populating, by the first base station, the bit, which is in the preset field of the MAC CE for activating/deactivating retransmission and corresponding to the bearer, thereby generating the MAC CE for activating/deactivating retransmission, and transmitting to the UE the generated MAC CE for activating/deactivating retransmission.
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公开(公告)号：US20200228442A1
公开(公告)日：2020-07-16
申请号：US16650383
申请日：2018-09-19
Inventor： Aijuan LIU , Fangli XU , Jiamin LIU
IPC: H04L12/707
Abstract: A duplication transmission method and device, used for solving the problem in existing technology of a scheme for implementing packet data convergence protocol (PDCP) duplication having yet to be implemented in a central unit/distribute unit (CU/DU) separation scenario. According to the embodiments of the present invention, after determining the need for PDCP duplication transmission on a radio bearer, a CU sends a PDCP data packet transmitted on the radio bearer to a DU and instructs the DU to carry out the PDCP duplication transmission; and the DU sends the PDCP data packet to multiple radio link control (RLC) entities corresponding to the radio bearer so as to carry out the PDCP duplication transmission. Since the CU may instruct the DU to perform the PDCP duplication transmission, the PDCP data packet is subject to duplication transmission in the CU/DU separation scenario, thereby further improving the system performance.
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公开(公告)号：US20200084796A1
公开(公告)日：2020-03-12
申请号：US16475674
申请日：2018-02-14
Abstract: An SR/BSR triggering method and device are provided by the present disclosure. The method includes triggering an SR (Scheduling Request) and/or BSR (Buffer Status Report) process, if there is uplink data transmission requirement in a bearer channel and/or logical channel of a terminal, and there is no uplink resource available to the terminal on physical resources corresponding to numerologies and/or TTI lengths available to the bearer channel and/or the logical channel.
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公开(公告)号：US20200037371A1
公开(公告)日：2020-01-30
申请号：US15580551
申请日：2016-03-22
Abstract: The present invention relates to the field of radio frequency communications, and in particular, to a random access method and equipment. The invention resolves an issue of being unable to apply a random access process to a situation having strict latency requirement, owing to a longer latency during the random access process. In one embodiment of the invention, the method comprises: transmitting, by a user equipment (UE) and according to a resource in a resource pool dedicated to a contention-based random access procedure, UE identification information to a neighborhood; and if receiving a contention resolution message from the neighborhood, determining, by the UE and according to the contention resolution message, whether the contention-based random access procedure is successful. The random access procedure disclosed by present invention further comprises: determining, by the UE and according to second resource information, a resource dedicated to uplink transmission in a target neighborhood; and accessing, according to the resource dedicated to uplink transmission, into the target neighborhood. The embodiments of the invention decreases timing latency of the random access procedure by reducing interaction steps during the random access procedure, and as a consequence, the embodiments can be applied to the situation having the strict latency requirement.
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公开(公告)号：US20190335515A1
公开(公告)日：2019-10-31
申请号：US16476050
申请日：2018-02-12
Abstract: The present disclosure relates to a method and a device for responding to a random access. The method includes: a user equipment (UE) sending a random access request, wherein information including a UE identifier is carried in the random access request; and the UE receiving a random access response, wherein when UE identifier carried in the random access response is consistent with the UE identifier in the random access request, a contention resolution is completed; when the UE identifier carried in the random access response is inconsistent with the UE identifier in the random access request, the UE determines that the random access fails this time, and re-initiates a random access attempt; and when no UE identifier is carried in the random access response, the UE falls back to a random access process in which no UE identifier information is carried in the random access request.
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