Samsung Electronics Co., Ltd.

Hyoung-Gwan Kim

Joon-Goo Park

Jae-Yoel Kim

Sang-Kyung Sung

Jae-Woon Park

Ju-Ho Lee

Sung-Ho Choi

Kook-Heui Lee

Yong-Jun Kwak

Sung-Oh Hwang

Hyeon-Woo Lee

Jin-Weon Chang

Hye-Young Lee

Li Xiaoqiang

Wang Ting

Zhang Shuwei

Jung-Gon Kim

Du GaoKe

Provided is a method for generating a preamble sequence group. The method includes creating a preamble sequence, calculating a cross-correlation value between sequences using the created preamble sequence, determining a limit cross-correlation value using the cross-correlation value to construct a preamble set used in the communication system, calculating a preamble set that satisfies the determined limit cross-correlation value, and terminating construction of the preamble set.

Method for generating a preamble sequence group

An RNC determines parameters available for measurement of a synchronization signal and second Node B information from a second Node B, transmits the determined parameters to a first Node B during radio link setup and to a UE during radio bearer setup, and transmits parameter selection information to the first Node B and the UE, if it is recognized that measurement of the synchronization signal and the second Node B information is necessary. The first Node B changes a position of a downlink time period over which a downlink channel is transmitted from the first Node B to the UE and a position of an uplink time period over which an uplink channel is transmitted from the UE to the first Node B, according to parameters selected from the parameters. The UE receives the synchronization signal and the second Node B information in the remaining time periods except the changed downlink time period and the changed uplink time period among the plurality of time periods.

Signal measurement apparatus and method for handover in a mobile communication system

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Seoul, South Korea

Hyoung-Gwan Kim