公开(公告)号：US11218982B2

公开(公告)日：2022-01-04

申请号：US16623349

申请日：2018-04-17

Applicant: China Academy of Telecommunications Technology

Inventor： Ren Da ,  Bin Ren ,  Fang-Chen Cheng ,  Zheng Zhao

IPC: H04W56/00 ,  H04W24/08

Abstract: Disclosed in the present application are a radio link monitoring method and apparatus, the method comprising: when a UE performs radio link monitoring, the UE monitors a downlink signal of a primary serving cell to obtain monitoring results; and the UE compares the monitoring results with an required synchronization threshold to determine whether the UE is in a synchronized state; the synchronization threshold is determined on the basis of preset parameters. The present invention solves the problems in the prior art of the complexity of defining RLM performance requirements, and being unable to provide the needed flexibility for supporting different specific systems by means of adjusting thresholds.

公开(公告)号：US20200344811A1

公开(公告)日：2020-10-29

申请号：US16765154

申请日：2018-10-10

Applicant: China Academy of Telecommunications Technology

Inventor： Bin Ren ,  Ren Da ,  Zheng Zhao ,  Tie Li

IPC: H04W74/08 ,  H04W72/04 ,  H04L27/26

Abstract: The present application relates to the field of wireless communications, and in particular, to a method and device for random access, for use in resolving the problem in the prior art of conflict between a time domain resource used by a terminal for random access and a time domain resource occupied for transmission of a SS Block and/or RMSI. In embodiments of the present application, a terminal determines a PRACH time domain resource configured by a base station for the terminal; when determining that at least one time slot comprises a first type of OFDM symbols used for transmission of a SS Block and/or RMSI, the terminal performs random access by means of OFDM symbols different from the first type of OFDM symbols in the at least one time slot. In the embodiments of the present application, the terminal performs random access by means of OFDM symbols different from the first type of OFDM symbols in the time slot, so that conflict between the time domain resource used for random access and the time domain resource occupied for transmission of the SS Block and/or RMSI is avoided, and the system performance is further improved.