公开(公告)号：US20210112598A1

公开(公告)日：2021-04-15

申请号：US16606450

申请日：2018-05-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungbo RYU ,  Dongmin KIM ,  Namryul JEON ,  Doyoung JUNG ,  Balgeum CHOE

IPC: H04W74/08 ,  H04W76/27 ,  H04W74/00 ,  H04W36/08 ,  H04W76/30 ,  H04W76/10

Abstract: According to an embodiment of the present disclosure, a terminal may store a time correction value acquired from an RA response message during an RRC layer connection to a base station, receive, from the base station, an uplink resource allocation message including an uplink resource allocated to the terminal, after the RRC layer connection to the base station is released, and when an RRC layer connection to the base station is determined, establish the RRC layer connection to the base station without transmitting an RA preamble message, on the basis of the stored time correction value and the allocated uplink resource.

公开(公告)号：US20210307081A1

公开(公告)日：2021-09-30

申请号：US17346946

申请日：2021-06-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungbo RYU ,  Dongmin KIM ,  Namryul JEON ,  Doyoung JUNG ,  Balgeum CHOE

IPC: H04W74/08 ,  H04W76/30 ,  H04W76/27 ,  H04W76/10 ,  H04W36/08 ,  H04W74/00

Abstract: According to an embodiment of the present disclosure, a terminal may store a time correction value acquired from an RA response message during an RRC layer connection to a base station, receive, from the base station, an uplink resource allocation message including an uplink resource allocated to the terminal, after the RRC layer connection to the base station is released, and when an RRC layer connection to the base station is determined, establish the RRC layer connection to the base station without transmitting an RA preamble message, on the basis of the stored time correction value and the allocated uplink resource.

公开(公告)号：US20210045029A1

公开(公告)日：2021-02-11

申请号：US16978167

申请日：2019-03-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungbo RYU

IPC: H04W36/12 ,  H04L1/18

Abstract: The present disclosure relates to a communication technique for converging a 5G communication system for supporting a higher data transfer rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart home, smart buildings, smart cities, smart cars or connected cars, health care, digital educations, retail business, security and safety-related services, etc.) on the basis of a 5G communication technology and an IoT-related technology. A method for transmitting data by a first communication device in the case of a packet data convergence protocol (PDCP) version change in a wireless communication system according to an embodiment of the present invention comprises the steps of: checking whether the PDCP version of a first PDCP entity for the first communication device is changed from the PDCP version of a second PDCP entity for a second communication device; when the PDCP version of the first PDCP entity is changed, identifying first data transmitted by the second PDCP entity to a radio link control (RLC) entity for the second communication device; and transmitting second data to a third communication device on the basis of the first data and a data transmission mode configured for the first communication device.