公开(公告)号：US10314026B2

公开(公告)日：2019-06-04

申请号：US15494263

申请日：2017-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyeong In Jeong ,  Gert Jan Van Lieshout

IPC: H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W48/08 ,  H04W52/02 ,  H04W52/36 ,  H04W52/50 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W76/19 ,  H04W76/38 ,  H04W84/04 ,  H04W88/08

Abstract: The present invention relates to a transmission of a random access in a specific cell from a plurality of serving cells in a mobile communication system using a carrier aggregation technology, and a method for efficiently transmitting uplink channels other than the random access in another cell. In particular, the method for a terminal to transmit an uplink channel to a base station comprises the steps of: confirming whether an uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe transmitting a Random Access Preamble for the first carrier; if included, confirming whether the sum of the electric power required for the transmission of the random access preamble and the electric power required for the transmission of the uplink channel exceeds the maximum transmission electric power of the terminal; and, if exceeding, transmitting the random access preamble preferentially before the uplink channel. In addition, the terminal for transmitting an uplink channel to a base station comprises: a transmitter/receiver for transmitting/receiving a signal to/from the base station; and a control unit for confirming whether the uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe for transmitting a random access preamble for the first carrier, and if included, confirming whether the sum of the electric power required for transmitting the Random Access Preamble and the electric power required for transmitting the uplink channel exceeds the maximum transmission electric power of the terminal, and if exceeding, controlling the transmission so that the random access preamble is preferentially transmitted before the uplink channel.

公开(公告)号：US10264618B2

公开(公告)日：2019-04-16

申请号：US14449617

申请日：2014-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyeong In Jeong ,  Gert-Jan Van Lieshout

IPC: H04W76/19 ,  H04L5/00 ,  H04W74/08 ,  H04W28/04 ,  H04W24/04

Abstract: A random access procedure control method and apparatus is provided for controlling a random access procedure efficiently in a mobile communication system supporting carrier aggregation. The method for controlling random access procedure of a terminal in a wireless communication system having a primary cell and at least one secondary cell includes initiating a random access procedure in the primary cell and the at least one secondary cells, detecting a random access failure of a terminal performing the random access procedure, determining whether the random access failure is detected in the primary cell or the at least one secondary cell, and determining whether to continue the random access procedure according to a result of the determining of whether the random access failure is detected.

公开(公告)号：US10200898B2

公开(公告)日：2019-02-05

申请号：US15489516

申请日：2017-04-17

Applicant: Samsung Electronics Co., Ltd

Inventor： Kyeong In Jeong ,  Gert-Jan Van Lieshout ,  Chengjun Sun

IPC: H04W24/08 ,  H04W24/04 ,  H04W76/18 ,  H04W76/28 ,  H04W28/18 ,  H04B17/24 ,  H04B17/26 ,  H04B17/309

Abstract: A radio link failure detection method of a user equipment transitioning between a Discontinuous Reception (DRX) mode and non-DRX mode cyclically in a wireless communication system includes transitioning between a Discontinuous Reception (DRX) mode and a non-DRX mode in a wireless communication system. The method also includes adjusting, when a mode transition occurs, a size of a monitoring window for a transitioned operation mode; reporting a radio channel condition acquired by monitoring and averaging the channel condition within the monitoring window; and repeating adjustment of the monitoring window size and report of the radio channel condition while moving the monitoring window as time progress.

公开(公告)号：US10129835B2

公开(公告)日：2018-11-13

申请号：US15650191

申请日：2017-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Bum Kim ,  Soeng Hun Kim ,  Gert-Jan Van Lieshout ,  Kyeong In Jeong

IPC: H04B7/00 ,  H04W52/36 ,  H04W72/04 ,  H04W52/54 ,  H04W88/08 ,  H04W88/06 ,  H04W52/22

Abstract: A method and an apparatus for efficiently transmitting or reporting a Power Headroom Report (PHR) of a User Equipment (UE) are provided. The method of transmitting the PHR of the UE in a mobile communication system includes configuring an extended PHR including an indicator corresponding to a variation factor of a maximum transmission power of the UE, and transmitting the extended PHR from the UE to a Base Station (BS). The BS may be notified of a maximum transmission power of the UE and a variation factor corresponding to the maximum transmission power in order to enable efficient scheduling.

公开(公告)号：US10123314B2

公开(公告)日：2018-11-06

申请号：US14851565

申请日：2015-09-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae Hyuk Jang ,  Soeng Hun Kim ,  Boon Loong Ng ,  Gert-Jan Van Lieshout ,  Kyeong In Jeong ,  Joon Young Cho

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W24/02 ,  H04W24/10 ,  H04W88/08 ,  H04W88/02

Abstract: A method for activating/deactivating secondary carriers of a User Equipment (UE) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation Control Element (CE) in a first sub-frame from a Base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation CE indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame.

公开(公告)号：US10085246B2

公开(公告)日：2018-09-25

申请号：US15790675

申请日：2017-10-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soeng Hun Kim ,  Boon Loong Ng ,  Gert-Jan Van Lieshout ,  Kyeong In Jeong ,  Joon Young Cho

IPC: H04W72/04 ,  H04W76/36 ,  H04W52/28 ,  H04W74/08 ,  H04W24/10 ,  H04W24/02 ,  H04W52/36 ,  H04L1/00 ,  H04L5/00 ,  H04W52/34 ,  H04W76/11 ,  H04W52/14 ,  H04W52/38 ,  H04W72/00 ,  H04W72/12

Abstract: A method and an apparatus for performing random access and uplink transmission of a User Equipment (UE) supporting Carrier Aggregation (CA) are provided. The method includes determining whether a Scheduling Request (SR) is pending, determining, when the SR is pending, whether an uplink transmission resource is available in a current Transmission Time Interval (TTI), determining, when the uplink transmission resource is not available, whether a Physical Uplink Control Channel (PUCCH) resource is configured for transmission of the SR, and initiating, when the PUCCH resource is not configured, a random access process in a primary cell. The random access method and apparatus of the present invention is advantageous to reduce the waste of transmission resources.

公开(公告)号：US10051458B2

公开(公告)日：2018-08-14

申请号：US14377150

申请日：2013-01-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Han Na Lim ,  Song Yean Cho ,  Jung Je Son ,  Sang Soo Jeong ,  Soeng Hun Kim ,  Sang Bum Kim ,  Jae Hyuk Jang ,  Kyeong In Jeong

IPC: H04M3/00 ,  H04W8/04 ,  H04W8/08 ,  H04W8/22 ,  H04W8/18 ,  H04W36/00

Abstract: According to one embodiment of the present disclosure, the method by means of which a mobility management entity (MME) determines the communication mode of a terminal in a communication system includes the steps of: receiving, from the terminal, an access request including information on the position of the terminal; transmitting a message to a home subscriber server (HSS) on the basis of the received access request; receiving, from the HSS, specific position information for setting a first mode; comparing the information on the position of the terminal with the specific position information; and determining the communication mode of the terminal according to the result of the comparison. According to the present disclosure, the frequent transmission of small amounts of data can be supported in an efficient manner.

公开(公告)号：US10039025B2

公开(公告)日：2018-07-31

申请号：US15601396

申请日：2017-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Bum Kim ,  Soeng Hun Kim ,  Kyeong In Jeong

IPC: H04W24/10

CPC classification number: H04W24/10

Abstract: A method and apparatus for transmitting channel measurement information in a mobile communication system are disclosed. The method and apparatus enable a user equipment to log channel measurement information and transmit the same to a base station so as to enhance radio network performance and reduce processing complexity of the user equipment by removing unnecessary operations of the user equipment and preventing waste of radio network capacity during transmission of channel measurement information.

公开(公告)号：US10021658B2

公开(公告)日：2018-07-10

申请号：US14591409

申请日：2015-01-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soeng Hun Kim ,  Sang Bum Kim ,  Kyeong In Jeong ,  Gert-Jan Van Lieshout

IPC: H04B7/00 ,  H04W52/36 ,  H04W52/34 ,  H04W52/58 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W52/365 ,  H04W52/34 ,  H04W52/58 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for configuring Power Headroom Report (PHR) of a User Equipment (UE) efficiently in a mobile communication system supporting carrier aggregation are provided. The method includes generating a header including a LCID for identifying extended PHR and L indicating a length of the extended PHR, and inserting Power Headrooms (PHs) of multiple activated carriers into the extended PHR of one of the carriers.

公开(公告)号：US09820242B2

公开(公告)日：2017-11-14

申请号：US14847828

申请日：2015-09-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Soeng Hun Kim ,  Sang Bum Kim ,  Kyeong In Jeong ,  Gert-Jan Van Lieshout

IPC: H04B7/00 ,  H04W52/36 ,  H04W52/34 ,  H04W52/58 ,  H04W88/02 ,  H04W88/08

Abstract: A method and apparatus for configuring Power Headroom Report (PHR) of a User Equipment (UE) efficiently in a mobile communication system supporting carrier aggregation are provided. The method includes generating a header including a LCID for identifying extended PHR and L indicating a length of the extended PHR, and inserting Power Headrooms (PHs) of multiple activated carriers into the extended PHR of one of the carriers.