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    DEMODULATION REFERENCE SIGNAL TRANSMISSION APPARATUS, SYSTEM, AND METHOD
    5.
    发明公开
    DEMODULATION REFERENCE SIGNAL TRANSMISSION APPARATUS, SYSTEM, AND METHOD 审中-公开

    公开(公告)号：EP3518453A1

    公开(公告)日：2019-07-31

    申请号：EP18209096.9

    申请日：2015-12-23

    申请人： Huawei Technologies Co., Ltd.

    发明人： YANG, Xiaodong ,  QUAN, Wei ,  LI, Bingzhao ,  HU, Zhenxing ,  ZHANG, Jian ,  MIAO, Jinhua ,  HE, Chuanfeng

    IPC分类号： H04L5/00

    摘要： The present invention provides a demodulation reference signal transmission apparatus, system, and method. The method includes: sending, by a base station, a configuration indication to user equipment UE, where the configuration indication is used to instruct the UE to send an independent DMRS and/or instruct the UE to send a combination of a DMRS and uplink data; and subsequently receiving, by the base station, the independent DMRS sent by the UE; and/or receiving the combination of the DMRS and the uplink data sent by the UE. In this way, the base station can trigger the UE to send the foregoing DMRS to complete frequency offset estimation, thereby improving accuracy of the frequency offset estimation.

    TERMINAL DEVICE, NETWORK DEVICE AND DATA TRANSMISSION METHOD
    8.
    发明公开
    TERMINAL DEVICE, NETWORK DEVICE AND DATA TRANSMISSION METHOD 审中-公开

    公开(公告)号：EP3402296A1

    公开(公告)日：2018-11-14

    申请号：EP16887234.9

    申请日：2016-01-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： TANG, Xun ,  QUAN, Wei ,  ZHANG, Jian ,  LI, Bingzhao ,  YANG, Xiaodong ,  MIAO, Jinhua

    IPC分类号： H04W76/02

    CPC分类号： H04W76/10 ,  H04L63/0485 ,  H04W40/02 ,  H04W72/005 ,  H04W72/0406 ,  H04W74/0833 ,  H04W76/11 ,  H04W76/12 ,  H04W76/27

    摘要： This application relates to the field of communications technologies, and in particular, to a terminal device, a network device, and a data transmission method, to reduce signaling overheads. A base station includes: a first sending module, configured to send a correspondence between a specified service and a logical channel identifier to a first terminal device, where the logical channel identifier corresponds to a common transmission channel used to transmit data of the specified service of a plurality of terminal devices; and a first receiving module, configured to receive an uplink data packet; a processing module, configured to determine, based on the logical channel identifier in the uplink data packet, to send the uplink data packet on the common transmission channel; and a second sending module, configured to transmit the uplink data packet on the common transmission channel; and/or a second receiving module, configured to receive a downlink data packet of the specified service from the common transmission channel, where the first sending module is further configured to broadcast the downlink data packet, and the downlink data packet includes the logical channel identifier. The first terminal device may transmit the specified service by using the common transmission channel, thereby avoiding relatively high signaling overheads for setting up a dedicated bearer and reducing a signaling transmission delay.

    DATA TRANSMISSION PROCESSING METHOD, USER EQUIPMENT AND BASE STATION
    10.
    发明公开
    DATA TRANSMISSION PROCESSING METHOD, USER EQUIPMENT AND BASE STATION 审中-公开

    公开(公告)号：EP3383125A1

    公开(公告)日：2018-10-03

    申请号：EP15911072.5

    申请日：2015-12-22

    申请人： Huawei Technologies Co., Ltd.

    发明人： CHANG, Junren ,  FENG, Shulan ,  XIA, Jinhuan ,  YANG, Xiaodong ,  GAO, Yongqiang ,  QUAN, Wei

    IPC分类号： H04W76/04 ,  H04W74/08 ,  H04W36/02

    CPC分类号： H04W76/19 ,  H04W36/0033 ,  H04W36/02 ,  H04W74/08 ,  H04W76/20

    摘要： The present invention provides a data transmission processing method, user equipment, and a base station. The method includes: receiving context information saving indication information sent by a base station, and saving context information of user equipment according to the context information saving indication information; determining that the user equipment is in a state related to triggering of RRC connection re-establishment or triggering of RRC connection establishment; and triggering an RRC connection re-establishment process or an RRC connection establishment process when the user equipment has uplink and/or downlink to-be-transmitted data, to transmit the to-be-transmitted data on a re-established RRC connection or an established RRC connection by using the context information of the user equipment. The RRC connection re-establishment process or the RRC connection establishment process is reused to quickly resume data transmission. In addition, because an RRC connection re-establishment process or an RRC connection establishment process in an LTE specification is reused, the user equipment does not need to make a complex change, and is easy to implement.