Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Hyundai Kefico Corporation

Ki-Won Sung

Ho-Dong Kim

Sang-Min Oh

Chae-Young Lee

Seung-Yong Ham

Soo-Yeul Oh

Jung-Taek Kim

Yang-Joo Ko

Kyeong-Hyeon Kim

Dae-Gun Lee

Seung-Tae Lee

Ho-Dong Wireless & Mobile Comm Lab Kim

Chae-Young c/o Wireless & Mobile Comm Lab Lee

Sang-Min c/o Wireless And Mobile Comm Lab Oh

The proposed technology relates to an oxygen sensor for a vehicle, the oxygen sensor including a housing, a sleeve coupled to the housing, a sensor element configured to determine an oxygen concentration and provided within an inner space defined by the housing and the sleeve, a contact terminal connected to the sensor element, a contact bush including an upper bush and a lower bush, and a positioning unit coupled with the contact bush and maintaining a gap between a circumference of the contact bush and an inner side surface of the sleeve. In particular, the contact bush is coupled with the sensor element and the terminal at the center of the sleeve, and movement due to external impact is prevented.

Oxygen sensor for vehicle

An apparatus and method for scanning signals of a neighboring Base Station (BS) in a broadband wireless communication system is provided. In the broadband wireless communication system, a scanning method of a serving base station includes: receiving information on a frequency use status of a neighboring base station from an upper network entity; and after determining a recommended scan frequency by using the received information, transmitting a scanning response message including the recommended scan frequency.

Method and apparatus for scanning signals of neighboring base station in broadband wireless communication system

An apparatus and a method for preamble pseudo noise code allocation in a broadband wireless communication system are provided. The method includes defining an inherent index for each FA, allocating a preamble PN index to base stations using a reference FA index, defining an inherent offset by each FA for remaining FA indexes, and shifting the preamble PN index allocated to the base stations using the reference FA index by the defined offset, and allocating the preamble PN index to base stations using the remaining FA indexes. The price of a system can thus be lowered by reducing a Peak-to-Average Power Ratio (PAPR) of a preamble, increase the number of FAs that a specific amplifier can amplify, and immediately allocate a preamble PN index when adding a new FA during an operation of a system.

Apparatus and method for preamble pseudo noise code allocation in broadband wireless communication system

An apparatus and method for allocations segments in a broadband wireless communication system is provided. Sector pairs are generated with respect to all sectors existing in different cells and the generated sector pairs are sorted according to priority based on a proximity. A sector pair having a top priority among unselected sector pairs is selected. Segments are allocated to all sectors of a cell including each sector of the selected sector pair. Accordingly, segments can be allocated to sectors while minimizing downlink throughput deterioration caused by segment duplication.

Apparatus and method for allocating segments in broadband wireless communication system

Provided is an apparatus and method for transmitting neighbor base station information in a broadband wireless communication system. In the method, the priorities of subcells included in neighbor base stations that use at least one frequency allocation are determined. Subcells are selected among the subcells according to the determined priorities, information about which is to be transmitted to mobile stations located in a coverage area. Information about the selected subcells is transmitted to the mobile stations. Thus, the amount of resource for transmission of the neighbor base station information can be reduced. Therefore, the available resource of the downlink can be increased and the amount of a scan operation of the mobile station can be reduced.

Apparatus and method for operating broadcast message in broadband wireless communication system

An apparatus and a method for reallocating segments in a broadband wireless communication system are provided. An average density for all cells in system and an average minimal inter-cell distance R are computed. A circle is determined having a radius kR and a center at a corresponding cell by increasing a constant k until a density of the circle becomes less than or equal to the average density. A cluster is generated for each cell, which is composed of cells included in the determined circle. Accordingly, segment allocation capability can be improved while minimizing a width of segment reallocation.

Apparatus and method for reallocating segments in broadband wireless communication system

An apparatus and a method for allocating IDcells in a wireless communication system are provided, in which an initial IDcell allocation is performed by allocating entire sectors to elements of an N&#xd7;M IDcell matrix, a sector pair with the highest proximity is selected for each IDcell in the initial allocation, an IDcell with a sector pair having the highest of the proximities of the selected sector pairs is determined as a target IDcell, one sector of the sector pair with the highest proximity for the target IDcell is selected as a target sector, a predetermined number of sectors are selected for each of the other IDcells except for the target IDcell, from among sectors to which the each of the other IDcells is allocated, and the IDcell of the target sector is swapped with the IDcell of a sector satisfying a first condition among the selected sectors.

Growing community of inventors

Seoul, South Korea

Ki-Won Sung