公开(公告)号：US20250085985A1

公开(公告)日：2025-03-13

申请号：US18768840

申请日：2024-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chen CHEN ,  Wei ZHANG

IPC: G06F9/451

Abstract: A method for recording and playback including: recording an operation of a first device based on an operation recording instruction to obtain a user operation record; acquiring environment data of the first device; and performing user operations of the user operation record sequentially in a second device based on an operation playback instruction, where the performing the user operations of the user operation record includes, for one of the user operations: determining a corresponding target control in the second device based on the environment data of the first device and environment data of the second device, and performing a respective user operation based on the target control.

公开(公告)号：US20170214505A1

公开(公告)日：2017-07-27

申请号：US15321445

申请日：2015-06-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ranran ZHANG ,  Chen CHEN ,  Hao NI ,  Zhichun SHEN ,  Xiaohui YANG

IPC: H04L5/00 ,  H04L1/00 ,  H04B7/06 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0684 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/06 ,  H04L5/0005 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0073 ,  H04L5/0091 ,  H04W24/08 ,  H04W72/042 ,  H04W72/046

Abstract: Embodiments of the present disclosure provide reference signal transmitting and receiving methods and devices in an active antenna system. Port virtualization to a transmit antennas may be implemented for multiple cell-specific reference signal (CRS) antenna ports and applying different vertical beamforming vectors to implement port virtualization for the different CRS antenna ports. The User Equipment (UE) reports the maximum RSRP/RSRQ value measured based on multiple CRS ports, or the UE simultaneously reports multiple RSRP/RSRQ values and the information of the multiple CRS antenna ports. Therefore, the coverage problem of the CRS signal and Physical Broadcast Channel (PBCH)/Physical Downlink Control Channel (PDCCH)/Physical Downlink Shared Channel (PDSCH) demodulated based on CRS and the problem of measurement for Radio Resource Management (RRM) in the active antenna system may be avoided. Specifically, the following problems may be solved. 1) Coverage differences between CRS and PBCH/PDCCH/PDSCH demodulated based on CRS transmission and Enhanced PDCCH (E-PDCCH)/PDSCH signal transmission, which is measured based on the CSI-RS or demodulated based on the DMRS may be reduced or avoided. 2) The cell association problem due to the different vertical beamforming technologies adopted by the CSI-RS or DMRS and by the CRS may be avoided. 3) Deep spatial fading state may be avoided for CRS reception and PBCH/PDCCH/PDSCH demodulated based on the CRS.