公开(公告)号：US11178656B2

公开(公告)日：2021-11-16

申请号：US16806395

申请日：2020-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaehyuk Jang ,  Kyeong In Jeong

IPC: H04W4/00 ,  H04W72/04 ,  H04W76/19 ,  H04L1/18 ,  H04L5/00 ,  H04W56/00 ,  H04W52/02 ,  H04W52/36 ,  H04W52/50 ,  H04W74/08 ,  H04W74/00 ,  H04W28/04 ,  H04W76/38 ,  H04L27/26 ,  H04W48/08 ,  H04W88/08 ,  H04W72/00 ,  H04W84/04 ,  H04W24/04

Abstract: A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) and a User Equipment (UE) in a Long Term Evolution (LTE) system supporting multiple carriers. The method includes starting a first TAT of a first group including the primary cell, starting a second TAT when Timing Advance (TA) information on a second group not including the primary cell is received; and determining transmission of at least one of a Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), a physical uplink control channel, and a sounding reference signal according to a start and an expiration of at least one of the first and second TATs.

公开(公告)号：US11166245B2

公开(公告)日：2021-11-02

申请号：US16881812

申请日：2020-05-22

Applicant: Samsung Electronics Co., Ltd.

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

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

Abstract: A method and an apparatus for efficiently reporting user equipment (UE) are provided. A method of transmitting Power Headroom Report (PHR) of UE in a mobile communication system, includes configuring an evolved PHR including an indicator with respect of a variation factor of maximum transmission power of the UE, and transmitting the evolved PHR to an eNB. An eNB may know maximum transmission power of an UE and a variation factor thereof to enable efficient scheduling.

公开(公告)号：US10791480B2

公开(公告)日：2020-09-29

申请号：US15601833

申请日：2017-05-22

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W28/02 ,  H04W74/08

Abstract: The present specification relates to a communication method and a communication device, and a random access method of a user equipment (UE), according to one embodiment of the present specification, comprises the steps of: sensing a random access trigger in a connected state; determining the type of the random access trigger when the random access trigger is sensed; and performing congestion control if the type of the random access trigger is a preset type.

公开(公告)号：US10694371B2

公开(公告)日：2020-06-23

申请号：US14843264

申请日：2015-09-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chae Gwon Lim ,  Kyeong In Jeong ,  Sung Ho Choi ,  Beom Sik Bae

IPC: H04Q1/00 ,  H04W64/00 ,  H04W8/22 ,  H04W36/00 ,  H04W76/27 ,  H04W36/16 ,  H04W48/20 ,  H04W88/02 ,  H04W88/08

Abstract: A method and an apparatus are provided in a wireless communication system. Mobility history information is generated including information on a time duration corresponding to out-of-service. It is identified whether the terminal is in a radio resource control (RRC) connected mode. The mobility history information is transmitted to a base station if the terminal is in the RRC connected mode.

公开(公告)号：US10659211B2

公开(公告)日：2020-05-19

申请号：US15155762

申请日：2016-05-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyeong In Jeong ,  Gert Jan Van Lieshout ,  Soeng Hun Kim ,  Jung Soo Jung

IPC: G01R31/08 ,  H04L5/00 ,  H04W36/08 ,  H04W72/04 ,  H04L12/26 ,  H04L12/24 ,  H04W24/10 ,  H04W36/28

Abstract: A method and apparatus for configuring a radio link of a terminal communicating via aggregated carriers including a primary cell and a secondary cell are provided. The method includes detecting a Radio Link Failure (RLF) for the secondary cell, deactivating the secondary cell, and reporting at least one of a measurement result of the secondary cell and a measurement result of neighboring cell of the secondary cell to a base station. The apparatus includes a transceiver for communicating with a base station, and a controller configured to detect a RLF for the secondary cell, to deactivate the secondary cell, and to report at least one of a measurement result of the secondary cell and a measurement result of neighboring cell of the secondary cell to the base station.

公开(公告)号：US10512114B2

公开(公告)日：2019-12-17

申请号：US15495189

申请日：2017-04-24

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04W76/18 ,  H04W4/029 ,  H04W52/22 ,  H04W4/02 ,  H04L12/26 ,  H04W24/10 ,  H04W74/08

Abstract: The present invention relates to a method and an apparatus for logging a radio resource control (RRC) failure of user equipment (UE) and receiving the log. According to one embodiment of the present invention, a method for logging an RRC failure of UE may comprise the steps of: attempting random access; if the failure of random access is sensed, logging information on the failure; and if the success of random access is sensed, transmitting information on the failure logged before the success to a connected base station. According to one embodiment of the present invention, an apparatus and a method which effectively log a channel state or a connection failure can be provided.

公开(公告)号：US10511429B2

公开(公告)日：2019-12-17

申请号：US15968617

申请日：2018-05-01

Applicant: Samsung Electronics Co., Ltd

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

IPC: H04M3/00 ,  H04L5/00 ,  H04W76/12 ,  H04W76/15 ,  H04W52/02 ,  H04W56/00 ,  H04W24/02 ,  H04W4/18 ,  H04W72/04 ,  H04W76/28 ,  H04W48/16

Abstract: To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (UE) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the UE are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the UE to transmit and receive high-speed data through carrier aggregation can increase.

公开(公告)号：US10349393B2

公开(公告)日：2019-07-09

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：US10326580B2

公开(公告)日：2019-06-18

申请号：US15339876

申请日：2016-10-31

Applicant: Samsung Electronics Co., Ltd

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

IPC: H04M3/00 ,  H04L5/00 ,  H04W76/12 ,  H04W76/15 ,  H04W4/18 ,  H04W24/02 ,  H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W76/28

Abstract: To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (UE) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the UE are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the UE to transmit and receive high-speed data through carrier aggregation can increase.

公开(公告)号：US10194405B2

公开(公告)日：2019-01-29

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

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.