Samsung Electronics Co., Ltd.

Jung-Su Kim

Jae-Hoon Lee

Jun-Ho Lee

Jang-Won Lee

Em-Hwan Kim

Ki-Hyoun Kwon

Jae-Hun Choe

Si-Myung Chang

Sang-Bum Sung

An emergency notification system and server are provided. The emergency notification system includes a wearable device that senses biosignals of a user wearing the wearable device and captures environment data; and a mobile device that periodically receives at least one of the biosignals and the environment data from the wearable device, determines a distance between the mobile device and the wearable device, periodically transmits the at least one of the biosignals and the environment data to a server, requests the wearable device to provide the at least one of the biosignals and the environment data, and transmits the received at least one of the biosignals and the environment data to the server.

Emergency notification system and server

An apparatus and method for allocating Radio Network Temporary Identifiers (RNTIs) for random access in a mobile communication system are provided. An Evolved Node B (ENB) determines the number of RNTIs allocated to at least one User Equipment (UE) that transmitted a random access preamble, determines an average number of random access preambles received during a Transmission Time Interval (TTI), and sets a timer based on the number of allocated RNTIs and the average number of random access preambles. If a cell identifier corresponding to a first UE is not received from an upper layer before expiration of the timer, the ENB releases the RNTI allocated to the first UE, and allocates the released RNTI to a second UE different from the first UE.

Apparatus and method for allocating radio network temporary identifier for random access in a mobile communication system

Growing community of inventors

Gyeonggi-do, South Korea

Jung-Su Kim