Patents by Inventor Soo-yeul Oh
Soo-yeul Oh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9357462Abstract: A Radio Network Controller (RNC) in a high speed wireless communication system includes an apparatus to perform method for changing a serving cell in the high speed wireless communication system. The RNC receives UpLink (UL) cell change determination information representing UL channel states from a serving Base Station (BS) and a target BS. The UL is received if a UL soft handover of a Mobile Station (MS) is initiated depending on a DownLink (DL) channel quality of the MS. The RNC can determine UL cell change timing of the MS using the UL cell change determination information. Thereafter, the RNC can send an instruction of a UL cell change of the MS to the serving BS and the target BS.Type: GrantFiled: December 22, 2009Date of Patent: May 31, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Ik Kim, Yun-Seok Hwang, Soo-Yeul Oh, Pyeong-Hwan Wee, Jae-Yeong Kwon
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Patent number: 8565778Abstract: An apparatus and method for uplink scheduling in a broadband wireless communication system are provided, in which channel conditions are divided into at least two areas, an area corresponding to channel information of a CSM mobile station received from the CSM mobile station is determined, resources of a first pilot pattern are allocated to the CSM mobile station, if the channel information belongs to an area with good channel condition, and resources of a second pilot pattern are allocated to the CSM mobile station, if the cannel information belongs to an area with poor channel condition.Type: GrantFiled: February 5, 2008Date of Patent: October 22, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jang-Won Park, Il-Jin Youn, Byung-Chan Ahn, Jae-Ho Lee, Soo-Yeul Oh
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Patent number: 8396511Abstract: An apparatus and method in a broadband wireless communication system are provided. The apparatus includes a Base Station (BS) which includes a manager for increasing a set point associated with a Mobile Station (MS) if an error is detected in a burst received from the MS, a detector for incrementing a counter associated with the MS if a difference, between a maximum Transmission (Tx) power of the MS and a Tx power used by the MS when transmitting the burst in which the error was detected, is less than a difference threshold, and a determining unit for providing control such that a number of slots allocated to the MS decreases if the counter associated with the MS is greater than a counter threshold.Type: GrantFiled: February 27, 2008Date of Patent: March 12, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Chan Ahn, Jang-Won Park, Young-Soon Lee, Eun-Jin Lee, Soo-Yeul Oh
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Patent number: 8279820Abstract: An apparatus is configured to allocate an IDentification (ID) cell to avoid duplication of a preamble Pseudo Noise (PN) code in a broadband wireless communication system. The apparatus selects one sector inside the system. A temporary ID cell for the selected sector is selected. Whether an ID cell of a sector to which an ID cell has been already allocated inside a minimum unit group for ID cell allocation is the same as the temporary ID cell is determined. Whether PN codes of sectors inside a neighbor list of the selected sector are the same as temporary PN codes determined using the temporary ID cell are determined. When the temporary ID cell is not duplicated and the temporary PN codes are not duplicated, the selected temporary ID cell is allocated as an ID cell of the selected sector.Type: GrantFiled: November 9, 2009Date of Patent: October 2, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Kyung Cha, Gil-Ryun Nam, Jae-Ho Lee, Jae-Ho Jeong, Soo-Yeul Oh, Pyeong-Hwan Wee
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Patent number: 8275389Abstract: An apparatus and method for determining operation of location update in a broadband wireless communication system are provided. The apparatus includes a receiver, an interpreter, and a determiner. In an idle mode, the receiver receives a paging advertisement message from a Base Station (BS). The interpreter identifies paging group identification information included in the paging advertisement message. The determiner determines one of execution and non-execution of a location update process due to a change of a paging group if the paging group identification information is different from paging group identification information included in a previously received paging advertisement message.Type: GrantFiled: December 17, 2008Date of Patent: September 25, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Beom Jung, Jae-Yeong Kwon, Soo-Yeul Oh, Pyeong-Hwan Wee, Sang-Jun Lee, Young-Hak Choi, Sang-Ho Lee
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Patent number: 8189520Abstract: 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.Type: GrantFiled: February 5, 2008Date of Patent: May 29, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-Won Sung, Soo-Yeul Oh
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Patent number: 7974198Abstract: Apparatus and method for guaranteeing a Quality of Service (QoS) traffic rate in a mobile communication system are provided. The scheduling method for guaranteeing a QOS traffic rate in a mobile communication system includes calculating a total sum of traffic rates based on a channel change and a total sum of sustained traffic rates; calculating a weighted traffic rate using the traffic rate based on the channel change and the sustained traffic rate when the sustained traffic rate does not meet the QoS traffic rate; and determining a service priority using the weighted traffic rate. Therefore, the minimum reserved traffic rate and the maximum sustained traffic rate can be assured.Type: GrantFiled: January 31, 2008Date of Patent: July 5, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Chan Ahn, Jang-Won Park, Young-Soon Lee, Eun-Jin Lee, Soo-Yeul Oh
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Publication number: 20100157945Abstract: A Radio Network Controller (RNC) in a high speed wireless communication system includes an apparatus to perform method for changing a serving cell in the high speed wireless communication system. The RNC receives UpLink (UL) cell change determination information representing UL channel states from a serving Base Station (BS) and a target BS. The UL is received if a UL soft handover of a Mobile Station (MS) is initiated depending on a DownLink (DL) channel quality of the MS. The RNC can determine UL cell change timing of the MS using the UL cell change determination information. Thereafter, the RNC can send an instruction of a UL cell change of the MS to the serving BS and the target BS.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Jin-Ik Kim, Yun-Seok Hwang, Soo-Yeul Oh, Pyeong-Hwan Wee, Jae-Yeong Kwon
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Publication number: 20100118809Abstract: An apparatus is configured to allocate an IDentification (ID) cell to avoid duplication of a preamble Pseudo Noise (PN) code in a broadband wireless communication system. The apparatus selects one sector inside the system. A temporary ID cell for the selected sector is selected. Whether an ID cell of a sector to which an ID cell has been already allocated inside a minimum unit group for ID cell allocation is the same as the temporary ID cell is determined. Whether PN codes of sectors inside a neighbor list of the selected sector are the same as temporary PN codes determined using the temporary ID cell are determined. When the temporary ID cell is not duplicated and the temporary PN codes are not duplicated, the selected temporary ID cell is allocated as an ID cell of the selected sector.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-Kyung Cha, Gil-Ryun Nam, Jae-Ho Lee, Jae-Ho Jeong, Soo-Yeul Oh, Pyeong-Hwan Wee
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Publication number: 20090185502Abstract: An apparatus and method for planning a wireless network is provided. An apparatus for planning a wireless network includes a parameter input unit for receiving parameter information, and outputting the parameter information, a Rise over Thermal (RoT) calculator for calculating an RoT using the parameter information, and outputting the RoT, a first uplink performance prediction index determiner for determining a Modulation and Coding Scheme (MCS) level using the RoT, and outputting determined MCS level information, a maximum achievable Carrier to Interference and Noise Ratio (CINR) calculator for calculating a maximum achievable CINR of the determined MCS level using the determined MCS level information, and outputting a calculated maximum achievable CINR, and a second uplink performance prediction index determiner for determining at least one among a mobile station (MS) transmission power, a data rate, and an uplink CINR using the determined MCS level information.Type: ApplicationFiled: January 21, 2009Publication date: July 23, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Ki-Won Sung, Jim-Kyung Cha, Soo- Yeul Oh, Pyeong-Hwan Wee
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Publication number: 20090156236Abstract: An apparatus and method for determining operation of location update in a broadband wireless communication system are provided. The apparatus includes a receiver, an interpreter, and a determiner. In an idle mode, the receiver receives a paging advertisement message from a Base Station (BS). The interpreter identifies paging group identification information included in the paging advertisement message. The determiner determines one of execution and non-execution of a location update process due to a change of a paging group if the paging group identification information is different from paging group identification information included in a previously received paging advertisement message.Type: ApplicationFiled: December 17, 2008Publication date: June 18, 2009Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Sung-Beom JUNG, Jae-Yeong KWON, Soo-Yeul OH, Pyeong-Hwan WEE, Sang-Jun LEE, Young-Hak CHOI, Sang-Ho LEE
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Publication number: 20080291871Abstract: 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.Type: ApplicationFiled: February 5, 2008Publication date: November 27, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Ki-Won Sung, Soo-Yeul Oh
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Publication number: 20080207122Abstract: An apparatus and method in a broadband wireless communication system are provided. The apparatus includes a Base Station (BS) which includes a manager for increasing a set point associated with a Mobile Station (MS) if an error is detected in a burst received from the MS, a detector for incrementing a counter associated with the MS if a difference, between a maximum Transmission (Tx) power of the MS and a Tx power used by the MS when transmitting the burst in which the error was detected, is less than a difference threshold, and a determining unit for providing control such that a number of slots allocated to the MS decreases if the counter associated with the MS is greater than a counter threshold.Type: ApplicationFiled: February 27, 2008Publication date: August 28, 2008Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Byung-Chan AHN, Jang-Won PARK, Young-Soon LEE, Eun-Jin LEE, Soo-Yeul OH
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Publication number: 20080186884Abstract: Apparatus and method for guaranteeing a Quality of Service (QoS) traffic rate in a mobile communication system are provided. The scheduling method for guaranteeing a QOS traffic rate in a mobile communication system includes calculating a total sum of traffic rates based on a channel change and a total sum of sustained traffic rates; calculating a weighted traffic rate using the traffic rate based on the channel change and the sustained traffic rate when the sustained traffic rate does not meet the QoS traffic rate; and determining a service priority using the weighted traffic rate. Therefore, the minimum reserved traffic rate and the maximum sustained traffic rate can be assured.Type: ApplicationFiled: January 31, 2008Publication date: August 7, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Byung-Chan Ahn, Jang-Won Park, Young-Soon Lee, Eun-Jin Lee, Soo-Yeul Oh
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Publication number: 20080188232Abstract: An apparatus and method for uplink scheduling in a broadband wireless communication system are provided, in which channel conditions are divided into at least two areas, an area corresponding to channel information of a CSM mobile station received from the CSM mobile station is determined, resources of a first pilot pattern are allocated to the CSM mobile station, if the channel information belongs to an area with good channel condition, and resources of a second pilot pattern are allocated to the CSM mobile station, if the cannel information belongs to an area with poor channel condition.Type: ApplicationFiled: February 5, 2008Publication date: August 7, 2008Inventors: Jang-Won Park, Il-Jin Youn, Byung-Chan Ahn, Jae-Ho Lee, Soo-Yeul Oh
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Publication number: 20080165729Abstract: An apparatus and method for network address allocation are provided, in which an interface module performs wireless communications through an antenna, and a protocol controller performs wireless communications using a predetermined protocol and performs a network address acquisition procedure during network entry.Type: ApplicationFiled: January 4, 2008Publication date: July 10, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Seong-Gu Kim, Soo-Yeul Oh, Zea-Jong Kang
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Patent number: 6453152Abstract: A method for measuring a base station's performance in a mobile communication system. In the method a base station's performance is measured directly by a measurement apparatus without a base station controller. An apparatus for measuring a base station's performance is also provided, and has a measurement apparatus having a port for an exterior communication and a program for performing a measurement function, an interface module connected to said port and a base station's exterior communication port, for checking and controlling the status of a mobile communication base station via said measurement apparatus and an apparatus for transmitting an output signal of said base station to said measurement apparatus, preferably by wire.Type: GrantFiled: July 20, 1999Date of Patent: September 17, 2002Assignee: Samsung Electronics, Co., Ltd.Inventors: Sung-tae Hong, Soo-yeul Oh
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Patent number: 6438357Abstract: An air interface simulator and simulation method is disclosed.Type: GrantFiled: June 1, 1999Date of Patent: August 20, 2002Assignee: Samsung Electronics, Co., Ltd.Inventors: Soo-yeul Oh, Ki-seong Jang