Samsung Electronics Co., Ltd.

Yon-Woo Yoon

Hee-Won Kang

In-Seok Hwang

Ki-Young Han

Hwa-Sun You

Keun-Chul Hwang

Si-Hyun Park

Hyo-Yol Park

The present invention relates to a method for estimating timing offset of a first user in a receiver which supports a VAMOS technique and receives a burst through a wireless channel in a mobile communication system, the method comprising: determining a received signal matrix by using a plurality of reception training symbols included in the burst and located after predetermined numbers of symbols from the timing offset; determining LS channel estimation matrix in which the first user and a second user are combined, by using information on a transmission training symbol allocated to the second user and information on a transmission training symbol allocated to the first user; performing inner product calculation on the LS channel estimation matrix in which the first and second users are combined and on the received signal matrix so as to calculate a plurality of combined likelihood values; and selecting the timing offset so as to have the maximum value among the plurality of combined likelihood values.

Method for estimating timing offset in receiver in mobile communication system and apparatus for same

Provided is an apparatus and method for managing a neighbor list in a broadband wireless communication system. In the method, a user terminal generates a CINR list through initial cell scanning to transmit the generated CINR list to a base station. The base station transmits the CINR list to a server. The server updates a neighbor list of the base station on the basis of the CINR list.

Apparatus and method for managing neighbor list in broadband wireless communication system

A channel estimation method of a channel estimation apparatus in a wireless communication system is provided. The method includes predefining a plurality of weight tables about at least one of a speed and a Carrier to Interference-and-Noise Ratio (CINR) using a correlation value considering offset compensation; selecting a weight table to be used for channel estimation based on at least one of the estimated speed and the CINR, from the plurality of weight tables; and multiplying a pilot channel estimation value and the selected weight table, and performing data channel estimation.

Apparatus and method for MMSE channel estimation in consideration of offset compensation in wireless communication system

A method and apparatus estimate a frequency offset of a receiver in a mobile communication system. A pilot signal and a signal of a control channel are received from a transmitter. Frequency offsets of the pilot signal and frequency offsets of the control channel are estimated, respectively. And the frequency offset of the pilot signal is corrected based on the frequency offset estimation of the control channel.

Apparatus and method for frequency offset estimation in mobile communication system

A method and an apparatus for estimating an offset are provided. The method includes determining one of a frequency offset and a timing offset to be estimated first for pilot symbols detected from a received signal, estimating one of the frequency offset and the timing offset for the pilot symbols according to the determination, compensating for an offset of the pilot symbols based on the estimated offset, and estimating remaining one of the frequency offset and the timing offset which is not estimated for the offset compensated pilot symbols.

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Gyeonggi-do, South Korea

Yon-Woo Yoon