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Jong-Hyung Kwun
Jong-Hyung Kwun, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100177738 | METHOD AND APPARATUS FOR OPERATING MOVING NETWORK IN A MOBILE COMMUNICATION SYSTEM - A method and an apparatus for operating a moving network in a mobile communication system are provided. A method of a Base Station (BS) for operating a Moving Network (MN) includes determining an operation mode of the MN in a cell by collecting information of the cell, and transmitting the determined operation mode to the MN. The operation mode includes at least one of an Operation ON mode in which the MN maintains links to Mobile Stations (MSs) in a service coverage area of the MN, and an Operation OFF mode in which the MN turns off the links to the MSs in the service coverage area of the MN. | 07-15-2010 |
| 20100220010 | Method and apparatus for beam-forming signal in multi user-MIMO wireless communication system - A base station is capable of transmitting a signal in a wireless communication network. The base station decides channel state information matrices of respective channels by determining a state of the channels corresponding to respective transmission antennas. The base station calculates transmission beam forming vectors for the respective transmission antennas by a combination of a dot product and a cross product of the channel state information matrices. Thereafter, the base station beam-forms signals for the respective transmission antennas by using the respective transmission beam forming vectors, and transmitting the beam-formed signals. | 09-02-2010 |
| 20100260052 | APPARATUS AND METHOD FOR DETECTING FEMTO BASE STATION IN WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for detecting a femto Base Station (BS) of a Mobile Station (MS) in a wireless communication system including a macro BS and a femto BS are provided. The method includes receiving a request, from the macro BS, to monitor an UpLink (UL) signal of an MS permissible by the femto BS to access, and monitoring the UL signal of the MS permissible to access. | 10-14-2010 |
| 20100260156 | Apparatus and method for transmitting system information block in a broadband wireless communication system - An operation method of the femto BS includes configuring a subframe set including at least two types of subframes among subframes having predefined different structures, and, if a duration of a subframe carrying the subframe set arrives, transmitting one of the subframes included in the subframe set according to predefined order. The subframes having the predefined different structures include a first type subframe including a synchronization signal and a Master Information Block (MIB), a second type subframe including the synchronization signal, a third type subframe including the synchronization signal and system information, a fourth type subframe including the synchronization signal, the MIB, and the system information, and a fifth type subframe including the system information. | 10-14-2010 |
| 20100311422 | Apparatus and method for determining neighbor BS information in a wireless communication system - An apparatus and method determines neighbor Base Station (BS) information in a wireless communication system where a macro cell and a Femto cell coexist. The method includes, when a preamble scanning duration arrives, acquiring preamble information on at least one neighbor BS through preamble scanning. It is determined whether to scan a header for at least one neighbor BS among neighbor BSs for which the preamble information are acquired, in consideration of at least one of the acquisition or non-acquisition of new preamble information through the preamble scanning and a variation of an environment of a preamble acquired through the preamble scanning. And, in case that it is determined to scan the header, a header for a corresponding neighbor BS is scanned and header information of the neighbor BS is acquired. | 12-09-2010 |
Jong-Hyung Kwun, Seangnam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100056160 | Appatatus and method for transmitting inter-working signal in wireless communication system - A Base Station (BS) includes an apparatus and method for transmitting cell information. The BS is in the a communication system of a small cell size in a wireless communication environment in which a communication system of a large cell size and the communication system of the small cell size are hierarchically constructed in the same area. The method includes confirming reference signal transmission information for transmitting a reference signal including its own cell information, if a reference signal transmission interval arrives according to the reference signal transmission information, transmitting the reference signal through an operation frequency of a macro BS of the large cell size including the BS itself, and, if it is not the reference signal transmission interval, providing service through its own operation frequency or operating in a power saving mode. | 03-04-2010 |
Jong-Hyung Kwun, Seongnam-Si JP
| Patent application number | Description | Published |
|---|---|---|
| 20090185567 | Apparatus and method for managing connection identifier in a communication system - An apparatus and method for managing a Connection IDentifier (CID) in a communication system are provided. The method includes mapping a different index to at least one CID allocated by a base station (BS) and, if simultaneously transmitting packets for at least two CIDs, indexing a CID for packet transport by an index mapped to each CID and simultaneously transmitting packets for at least two CIDs. | 07-23-2009 |
Jong-Hyung Kwun, Seongsam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080227422 | APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MULTI-ANTENNA SYSTEM - An apparatus and method for interference cancellation in a multi-antenna system are provided. A transmission apparatus includes a channel identifier, a scheduler, an interference canceller, and a transmitter. The channel identifier identifies channel information of each of a plurality of receiving ends located in a service area and neighbor cell interference information on each receiving end. The scheduler selects at least one receiving end. The interference canceller precodes transmitted signals in order to cancel interference between receiving ends located in the same cell and neighbor cell interference. The transmitter transmits the precoded transmitted signals to the selected at least one receiving end. | 09-18-2008 |
| 20080227448 | APPARATUS AND METHOD FOR TRANSMITTING AN UPLINK PILOT USING A SCANNING INTERVAL IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for transmitting an UpLink (UL) pilot using a scanning interval in a mobile communication system are provided. The method includes receiving a scanning response message including information on a UL pilot channel allocation mode from a serving Base Station (BS), measuring each DownLink (DL) channel state using DL signals of one or more neighboring BSs and transmitting a UL pilot to each of the one or more neighboring BSs in the UL pilot channel allocation mode, during a scanning duration. Accordingly, both UL and DL Quality of Service (QoS) may be considered during a handover operation. | 09-18-2008 |
Jong-Hyung Kwun, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110134887 | APPARATUS AND METHOD FOR HANDOVER IN BROADBAND WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING MOBILE RELAY STATION - An apparatus and a method for handover in a broadband wireless communication system supporting a Mobile Relay Station (MRS) are provided. The method includes transmitting a Connection ID (CID) of Mobile Stations (MSs), the CIDs pre-allocated by a target BS, to the MSs; sending a resource allocation message comprising uplink resource allocation information for bandwidth request of the MSs, to the MSs; receiving a bandwidth request message which comprises security authentication information of each MS, from the MSs using an uplink resource allocated through the uplink resource allocation information; and aggregating bandwidth request messages of the MSs and sending a ranging request message comprising the security authentication information and bandwidth request information of the MSs to the target BS. Thus, the handover delay time, which is inevitable for the bandwidth request in the conventional connection set-up procedure, can be reduced, and the handover with the reliability guaranteed can be achieved by allowing the security related processing in the network re-entry procedure. | 06-09-2011 |