公开(公告)号：EP3793263A1

公开(公告)日：2021-03-17

申请号：EP19799203.5

申请日：2019-05-09

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： WANG, Rui ,  ZENG, Qinghai ,  LIANG, Jinyao

IPC分类号： H04W48/16 ,  H04W76/10 ,  H04W76/27

摘要： This application provides a communication method and a communications apparatus. The method includes: first determining, by a terminal, a first radio access technology for establishing an RRC connection; and then determining, by the terminal based on access information, a first cause value for establishing the RRC connection, where the first cause value is a cause value of the first radio access technology, and the access information includes at least one of an access identity AI, an access category AC, or a second cause value of a second radio access technology. After the terminal determines the first cause value, the terminal sends a first message used to establish the RRC connection, and uses the first message to carry the first cause value. By using this method, when the terminal accesses a plurality of core networks by using one radio access technology, the terminal can successfully report a cause value.

公开(公告)号：EP3637838A1

公开(公告)日：2020-04-15

申请号：EP18817725.7

申请日：2018-06-15

申请人： Huawei Technologies Co., Ltd.

发明人： WANG, Ting ,  JI, Liuliu ,  DOU, Shengyue ,  LIANG, Jinyao ,  LI, Yuanjie

IPC分类号： H04W24/10

摘要： This application provides a communication method, a terminal device, and a network device. The method includes: receiving, by the terminal device, configuration information, where the configuration information is used to instruct the terminal device to jointly report channel state information CSI for at least two groups of channel state information-reference signal CSI-RS resources; receiving, by the terminal device, CSI-RSs carried on the at least two groups of CSI-RS resources; and jointly reporting, by the terminal device, CSI based on a result of measuring the CSI-RSs carried on the at least two groups of CSI-RS resources. According to embodiments of this application, transmission performance can be improved.

公开(公告)号：EP3637665A1

公开(公告)日：2020-04-15

申请号：EP18827346.0

申请日：2018-05-22

申请人： Huawei Technologies Co., Ltd.

发明人： LIANG, Jinyao ,  ZHANG, Peng ,  LI, Yuanjie ,  YANG, Yubo

IPC分类号： H04L5/00 ,  H04W72/04

摘要： Embodiments of this application provide a data transmission method, a sending device, and a receiving device. The method includes: receiving, by a receiving device, first data on a first time-frequency resource, and receiving second data on a second time-frequency resource; and when the first time-frequency resource and the second time-frequency resource have an overlapped target frequency domain resource in frequency domain, using, by the receiving device, a first DMRS mapped to a target frequency domain resource of the first time-frequency resource to demodulate the second data mapped to a target frequency domain resource of the second time-frequency resource. According to the data transmission method, the sending device, and the receiving device that are provided in the embodiments of this application, when the sending device needs to send the first data and the second data to the receiving device separately, the sending device may send a location of a second DMRS on the target frequency domain resource of the second time-frequency resource when the first time-frequency resource and the second time-frequency resource have an overlapped target frequency domain resource. In this manner, DMRS overheads can be reduced, and utilization of resources can be improved.