Samsung Electronics Co., Ltd.

Sungkyunkwan University

Se-Bin Im

Min-Goo Kim

Sung-soo Kim

Chae-Hag Yi

Hyung-Jin Choi

In-hyoung Kim

Young-seok Jung

Won-Jun Hwang

Hee-Jin Roh

Dong-Sik Kim

Hui-won Je

Young-Il Min

Dae-Hong Lee

Chang-Hyun Baik

Disclosed is a terminal in a communication system including a transceiver, and at least one processor configured to generate modem control information, transmit, to a server, the modem control information through the transceiver, when the generated modem control information includes location information of the terminal, receive, from the server, the modem control information related to an estimated movement path of the terminal, the estimated movement path being determined based on the location information of the terminal, and perform a communication using the updated modem control information, wherein the updated modem control information includes at least one of cell identity information, signal strength per cell, frequency offset, timing offset, channel state information (CSI), interference information, and downlink configuration information.

Method and apparatus for controlling modem in wireless communication system

A chipset including at least one processor is provided. The at least one processor of the chipset is configured to acquire an interference whitening (IW) and detection scheme and demodulate an interference signal based on the acquired IW and detection scheme, wherein the IW and detection scheme is determined based on an interference characteristic of the interference signal, and the interference characteristic is determined based on whether a region in which the interference signal is included collides with a reference signal region of a serving cell and whether the interference signal is a reference signal.

Apparatus and method for mitigating interference in wireless communication system

Provided are methods of operating a wireless communication system. The methods include determining first resource mapping patterns of a first physical channel used to generate virtual pilot signals so as to perform downlink channel estimation, based on state information of user equipment (UE) in every first period. The first physical channel is mapped onto resource elements adjacent to resource elements onto which pilot signals are mapped, in a time-frequency resource area (TFRA) of a downlink signal based on the determined first resource mapping patterns. A downlink signal of which resource mapping is completed is then transmitted to the UE.

Wireless communication systems and methods of operating the same

A method and apparatus for controlling a modem of a user equipment (UE) in a wireless communication system is provided. The method includes generating at least one modem control information determined based on information related to a wireless communication environment, when at least a portion of the wireless communication environment is changed, updating a priority stored in a database of the UE based on the changed wireless communication environment and controlling the modem of the UE using the priority-updated modem control information.

Apparatuses, methods, and systems for providing control information to a communication device are described. It is identified that device control information for controlling the communication device in a first wireless communication environment has been received from a server while the communication device is in a second wireless communication environment. The communication device is controlled based on the device control information while the communication device is in the first wireless communication environment. Obtained information is transmitted to the server in the first wireless communication environment based on control of the communication device. The device control information includes a parameter value determined based on performance indices measured in the first wireless communication environment.

Communication device and method of controlling based on multiple wireless communication environments

Apparatuses, methods, and systems for providing control information to a communication device are described. In the method, it is determined whether a communication device has received device control information from a central management server (CMS) while in a first wireless communication environment, where the device control information is for controlling the communication device in a second wireless communication environment. If the device control information is received while the communication device is still in the first wireless communication environment, the communication device uses the received device control information when in the second wireless communication environment.

Communication device and method of controlling based on wireless communication environment

Disclosed are a user equipment and a control method thereof. The user equipment includes a transceiver, a memory, and a processor that is electrically connected with the transceiver and the memory, wherein the processor, if the user equipment is located in a predetermined interference region, determines whether or not there is an interference cell in the interference region, and if there is an interference cell, controls to block an attempt to access the interference cell by the user equipment.

User equipment in mobile communication system and control method thereof

Disclosed are a method for demodulating received signals and an apparatus therefore which can maintain quality of signals and can reduce computational complexity. A demodulation method of a receiving device for receiving a plurality of signals modulated through a M-ary (M is a natural number of 1 or more) modulation method includes: comparing channel frequency response power of a first channel with channel frequency response power of a second channel, selecting M reference signals on the basis of the compared result, selecting corresponding signals paired with respective selected M reference signals, and estimating transmitting signals from the M signal pairs including pairs of the reference signal and the corresponding signal. Accordingly, the computational complexity is reduced from O (M) to O (M).

Method for demodulating received signals and apparatus for performing the same

Provided are a wireless communication system and a method of performing communication in the same. The wireless communication system includes a terminal configured to classify all subcarriers into a first group and a second group and allocate subcarriers of the first group to first symbols and subcarriers of the second group to the first symbols again to generate and transmit a first transmission signal, a base station configured to allocate the subcarriers of the first group to second symbols and the subcarriers of the second group to third symbols to generate and transmit a second transmission signal, and a relay configured to receive the first and second transmission signals and perform maximum likelihood (ML) determination of frequency domain signals of the first and second transmission signals to estimate the first to third symbols.

Growing community of inventors

Gyeonggi-do, South Korea

Se-Bin Im