公开(公告)号：US20190254075A1

公开(公告)日：2019-08-15

申请号：US16310202

申请日：2016-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanliang Sun ,  Nathan Edward Tenny ,  Yongbo Zeng ,  Yu Cai ,  Bin Liu ,  Da Wang

IPC: H04W74/08 ,  H04W72/00 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W72/005 ,  H04W72/0406 ,  H04W72/044 ,  H04W74/02 ,  H04W74/08 ,  H04W88/04 ,  Y02D70/00

Abstract: Embodiments of this application provide a network access method for a low power terminal. The method includes: finding, by a low power terminal, at least one high performance terminal in a first resource pool based on a synchronization signal and a broadcast channel of a virtual micro cell that are sent by a high performance terminal; determining, from all found high performance terminals, a first high performance terminal that needs to be used to access a network; obtaining configuration information through a broadcast channel of a virtual micro cell of the first high performance terminal, where the configuration information includes a second resource pool; and sending a random access request to the first high performance terminal by using a resource in the second resource pool.

公开(公告)号：US20190253876A1

公开(公告)日：2019-08-15

申请号：US16346801

申请日：2017-01-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanliang Sun ,  Kai Xu ,  Bin Liu

IPC: H04W8/24 ,  H04L1/00 ,  H04W80/02 ,  H04W72/04 ,  H04W76/27 ,  H04B7/06

CPC classification number: H04W8/24 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/00 ,  H04W72/042 ,  H04W76/27 ,  H04W80/02

Abstract: Embodiments of the present invention provide a status switching method, network device, and terminal device. The method includes: determining, by a network device, whether a terminal device is in a first state, where the first state is used to: when the terminal device is in the first state, send channel state indication CSI information to the network device, and the CSI information includes first CSI information in a closed-loop state and second CSI information in an open-loop state; when the terminal device is in the first state, receiving, by the network device, the CSI information sent by the terminal device; determining, by the network device, first indication information based on the CSI information, where the first indication information is used to indicate a transmission parameter of downlink data; and sending, by the network device, the first indication information to the terminal device.

公开(公告)号：US20190174385A1

公开(公告)日：2019-06-06

申请号：US16111034

申请日：2018-08-23

Applicant: Huawei Technologies Co. Ltd.

Inventor： Aimin Justin Sang ,  Bin Liu ,  Xuelong Wang ,  Qinghai Zeng

IPC: H04W36/30 ,  H04W40/36 ,  H04W36/00 ,  H04W40/16 ,  H04W56/00

Abstract: A method is provided for radio link failure (RLF) detection, link failure recovery, beam failure recovery (BFR) and radio link monitoring (RLM), and for interactions between modules for RLF, BFR, RLM and, integration and unification of indications. A device may measure a reference signal received over one or more communication paths of a radio link to generate reference signal measurements, and select, from the one or more communications paths, at least one path for link quality assessment of a radio link operation based on the reference signal measurements and a configured criterion. The device may generate a radio link indication based on an assessed link quality metric or a link recovery operation status associated with the selected at least one path, and send the radio link indication from a physical layer of the device to a upper layer of the device.