Samsung Electronics Co., Ltd.

Yun-Sang Park

Bong-Gee Song

Jae-Hwan Chang

Tae-Gon Kim

Sun-Ny Chang

Jeong-Hoon Park

Jae-Yong Lee

Sang-Hoon Sung

Min-Cheol Park

Hae-Dong Yeon

In-hyoung Kim

Kang-gyu Lee

Yun-Sung Kim

Young-Hak Kim

Byung-Tae Kang

In-Hyoung Kim

Soon-Young Yoon

Joong-Ho Jeong

Jin-A Kim

Sa-Jin Kim

Hyung-Sang Cho

Jae-Hee Cho

Min-Goo Kim

Ji-Yun Seol

Sung-soo Kim

Dong-Kyu Kim

Byoung-Jae Bae

Sang-Hyuck Ha

Min-Hee Cho

Young-Mo Gu

Byung-Duck Cho

Dong-Joon Shin

Jun-Kyu Kang

Kang-yong Lee

Seung-Eun Hong

Sun-Ju Kim

Kwang-Seop Eom

Hyeong-Jong Ju

Ae-Ri Lim

Seong-Joon Kim

Yun-Ho Jung

In-Chun Lim

Chan-Young Kim

Kyeong-Tae Do

Byeong-Yun Lee

Kil-Ho Shin

Seo-Goo Lee

Kang-Gyu Lee

Geun-Myeon Lee

Ki-Tae Han

Jae Hwan Chang

The present invention relates to a method for identifying a microcell in a macrocell including the steps of: a User Equipment (UE) obtaining a physical identity of the microcell by performing cell search on an adjoining microcell; and the UE identifying the microcell by using a specific pattern of a sub-frame transmitted by the microcell.

Method and apparatus for identifying microcells in macrocells in wireless communication systems, and handover method and system using same

A method and apparatus for providing a service from a voice-service dedicated terminal to a data-service dedicated terminal by using user identification information of a mobile terminal user in a wireless communication system are provided. The method includes generating a message including an identification of a receiving-side terminal and a service type of the message, and transmitting the generated message to a service server.

Method and apparatus for providing service using user identification in wireless communication system

An apparatus and method for a Mobile Station (MS) in an idle mode for performing a location update in a broadband wireless access communication system is provided. The method includes transmitting a ranging request message requesting location update to a Base Station (BS) when a location update condition is met in idle mode, receiving a ranging response message including information for location update response from the BS, and wherein the information indicates whether a downlink traffic is pending for the MS.

Apparatus and method for updating location of idle-mode mobile station in a broadband wireless access communication system

An apparatus and method for regulating arrangement of pilot subcarriers to improve a channel estimation throughput in a wireless communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme are provided. The apparatus includes a pilot pattern manager for providing control such that pilots are non-uniformly generated according to a distance of a preamble in order to provide a constant link throughput of the frame when the downlink frame is generated.

Apparatus and method for channel estimation in wireless communication system

A decoding apparatus and method of a terminal in a wireless communication system are provided. A carrier to interference and noise ratio (CINR) estimator estimates a CINR value of a received signal, and a controller generates a modulation and coding scheme (MCS) level candidate set satisfying the estimated CINR value and a target packet error rate (PER) based on a look-up table. A decoder switch determines if an MCS level of a burst is included in the MCS level candidate set when the burst having no connection identifier (CID) information exists in a corresponding frame, and determines to decode the corresponding burst if the MCS level of the burst is included in the MCS level candidate set and to discard the burst otherwise.

Decoding apparatus and method of terminal in wireless communication system

Disclosed is a system and a method for provisioning service flows in broadband wireless access communication. In a broadband wireless access communication system, if a base station receives a registration request message from a mobile station, and if the base station inserts information about service flows to be provisioned by a base station into a registration response message and transmits the registration response message to the mobile station after the registration request message is received, the mobile station determines if the mobile station transits into a normal operation mode corresponding to the information and exactly recognizes a time point at which the mobile station goes into the normal operation mode.

System and method for provisioning service flows in broadband wireless access communication

Disclosed is an apparatus and a method for effectively allocating frequency resources in a mobile communication system. The method includes: determining a first offset of a preset frequency band from among all frequency bands, determining a second offset corresponding to a symbol unit in the preset frequency band, and allocating frequency resources to data, the frequency resources corresponding to a sum of the first offset and the second offset.

Apparatus and method for allocating frequency resources in mobile communication system

A scheduling method is provided for processing data in a communication system. The method includes performing downlink MAP (DL-MAP) decoding; generating a configuration table through the DL-MAP decoding; and processing data in a predetermined unit according to the generated configuration table.

Apparatus and method for scheduling data in a modem

Disclosed is a method, apparatus and system for providing a financial service through a mobile station in a mobile communication network. The system includes the mobile station for reading a barcode, transmitting user authentication data and the barcode, receiving passbook data, and storing and managing the passbook data; the mobile communication network for receiving the user authentication data and the barcode to thereby provide barcode information to a bank server, determining whether to approve the service; the bank server for managing the passbook data, allocating a specific barcode to each automatic machine, providing the location information of the automatic machine, corresponding to the barcode, and providing the mobile station with a banking service; and the automatic machine for receiving the barcode and outputting the received barcode, and providing the banking service through the bank server when the service is approved.

Method, apparatus and system for providing financial service by using mobile station in packet data system

Disclosed is a system and method for transmitting and receiving hybrid automatic repeat request (HARQ) buffer capability information in a broadband wireless access communication system. According to the system and method, a mobile station detects its own HARQ buffer capacity, and transmits a message including information about the detected HARQ buffer capability to a base station. The base station receives the message and determines the amount of a transmission signal to be allocated to the mobile station based on the HARQ buffer capability, so that it is possible to operate a HARQ scheme in accordance with the HARQ buffer capability of the mobile station.

System and method for transmitting/receiving hybrid automatic repeat request buffer capability information in broadband wireless access communication system

Provided is a channel estimation apparatus and method. In the channel estimation apparatus, a channel estimator performs channel estimation onto a received symbol and output a channel estimation result. The channel estimation result is stored in an estimation buffer along with a channel estimation result compensated in a preamble phase compensator. The preamble phase compensator receives a channel estimation result for pilot subcarriers of a data symbol and a preamble channel estimation result from the estimation buffer, acquires a phase rotation value between them, and compensates the preamble channel estimation result with the phase rotation value. When FCH and DL-MAP are demodulated, pilot subcarriers in the NPUSC symbol have been used to estimate the channel of the Nth PUSC symbol.

Apparatus and method for channel estimation for data demodulation in broadband wireless access system

An apparatus and method for canceling an interference signal in a broadband wireless communication system are provided. A receiver of a wireless communication system includes at least two receive antennas for receiving a target signal of a serving base station and interference signals of at least one neighbor base station; a channel estimator for estimating channels of the signals received through the receive antennas; and a detector for detecting the target signal using channel estimation values of the received signals. Accordingly, it is possible to reduce error propagation caused by the incorrect estimation and detection of the interference signal. In addition, time delay for detecting/restoring/removing the interference signal does not occur. Moreover, the increase of additional buffers can be prevented. Consequently, the increase of hardware complexity can be prevented.

Apparatus and method for canceling interference from neighbor cells in broadband communication system

A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.

Method and apparatus for transmitting a signal in a communication system

A Peak-to-Average Power Ratio (PAPR) reduction apparatus and method in an OFDM communication system are provided. In the PAPR reduction method, magnitude and phase components are extracted from transmission sample data. Peaks having magnitude components exceeding a threshold are detected by comparing the extracted magnitude components with the threshold. The highest of the peaks is detected and compared with the threshold. If the highest peak is greater than the threshold, the highest peak is updated.

Apparatus and method for reducing peak-to-average power ratio in an OFDM communication system

Disclosed is a method for controlling downlink power transmitted from a base station to subscriber stations in a mobile communication system employing an Orthogonal Frequency Division Multiple Access (OFDMA) scheme, in which data is carried from the base station to the subscriber stations by subchannels to each of which a plurality of subcarriers are assigned. The method includes the steps of receiving from the subscriber stations channel condition information of each of the subchannels together with information related to a subcarrier having a channel condition below a threshold from among at least one subcarrier included in each of the subchannels; calculating transmission power for each of the subchannels based on the received information; and transmitting each of the subchannels with the calculated transmission power, excluding the subcarrier having a channel condition below the threshold.

Apparatus and method for selective power control for an OFDM mobile communication system

Growing community of inventors

Suwon-si, South Korea

Yun-Sang Park