公开(公告)号：US10448400B2

公开(公告)日：2019-10-15

申请号：US15619952

申请日：2017-06-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Min Ro ,  Young Bum Kim ,  Joon Young Cho ,  Hyoung Ju Ji ,  Seung Hoon Choi

IPC: H04J1/16 ,  H04W72/04 ,  H04W24/08 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: The present disclosure relates to a technique for radio link monitoring in a wireless communication system, and to operation procedures of the base station and user equipment and a method for radio link quality evaluation on the basis of the technique. In the method, the user equipment divides the downlink channel bandwidth into multiple frequency ranges, measures channel states for each frequency range, and evaluates the radio link quality based on channel state measurement results. Thereafter, the user equipment sends frequency range quality information to the base station, which may then utilize the same for downlink resource allocation. Hence, it is possible to solve the problem of the existing scheme wherein the user equipment enters the physical layer problem detection state or the radio link failure state although a frequency range usable for service provisioning is present within the downlink channel bandwidth.

公开(公告)号：US10312962B2

公开(公告)日：2019-06-04

申请号：US14864397

申请日：2015-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Min Ro ,  Youn H. Heo

IPC: H04B1/713 ,  H04W72/04 ,  H04B1/7143 ,  H04B1/7136 ,  H04L1/08 ,  H04L5/00

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.

公开(公告)号：US09722681B2

公开(公告)日：2017-08-01

申请号：US14790353

申请日：2015-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Min Ro ,  Joon Young Cho ,  Ju Ho Lee ,  Yingyang Li ,  Jin Kyu Han

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B1/713 ,  H04B1/715 ,  H04B7/08 ,  H04J13/00

CPC classification number: H04B7/0608 ,  H04B1/713 ,  H04B1/715 ,  H04B7/0684 ,  H04B7/0897 ,  H04B2201/698 ,  H04J13/0074 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04W72/04 ,  H04W72/0413

Abstract: Disclosed is a sounding reference signal transmission method which is efficient in an uplink wireless telecommunications system using a multiple antenna technique and sounding reference signal hopping. A terminal is equipped with a plurality of antennas, and a base station receives the sounding reference signal transmitted from these antennas and estimates the uplink channel state of each antenna. The sounding reference signal performs frequency hopping so that the base station determines the channel condition for the entire bandwidth to which data is transmitted in the uplink system. In this environment, the sounding reference signal is transmitted through an antenna pattern through the entire data transmission bandwidth of the uplink system for each antenna of the terminal without additional overhead.

公开(公告)号：US09635679B2

公开(公告)日：2017-04-25

申请号：US14372206

申请日：2013-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seung Hoon Choi ,  Ki Il Kim ,  Sang Min Ro ,  Hyo Jin Lee ,  Ju Ho Lee ,  Joon Young Cho ,  Hyoung Ju Ji

IPC: H04W72/12 ,  H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0417

CPC classification number: H04W72/12 ,  H04B7/0417 ,  H04L5/0057 ,  H04L5/0062 ,  H04L27/2613 ,  H04W56/0015 ,  H04W56/0045

Abstract: The present disclosure relates to a terminal signal transmission timing randomisation method and device in a wireless communication system, and the terminal signal transmission method in a wireless communication system of the present disclosure comprises the steps of: receiving, from a base station, setting information for randomising transmission timing with respect to a signal transmitted by a terminal; determining the transmission timing for the signal in accordance with the setting information; and transmitting the signal to the base station in accordance with the determined transmission timing.

公开(公告)号：US08929420B2

公开(公告)日：2015-01-06

申请号：US14145197

申请日：2013-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Min Ro ,  Youn H. Heo

IPC: H04B1/69 ,  H04B1/707 ,  H04B1/713 ,  H04B1/7136 ,  H04B1/7143

CPC classification number: H04B1/713 ,  H04B1/7136 ,  H04B1/7143 ,  H04L1/08 ,  H04L5/0053 ,  H04W72/04

Abstract: A frequency allocation method and apparatus using a mirroring-assisted frequency hopping pattern is provided for retransmission in a wireless communication system operating in a frequency hopping mode. A frequency mapping method for a wireless communication system operating in a frequency hopping mode includes determining whether or not mirroring is used in accordance with a number of packet transmissions; mapping a frequency resource for a packet transmission based on a result of the determination; and receiving a packet using the mapped frequency resource.

Abstract translation: 在以跳频方式工作的无线通信系统中，提供使用镜像辅助跳频图案的频率分配方法和装置进行重发。 用于以跳频模式工作的无线通信系统的频率映射方法包括根据多个分组传输确定是否使用镜像; 基于所述确定的结果映射用于分组传输的频率资源; 并使用所映射的频率资源接收分组。