Lg Electronics Inc.

Joon-Kui Ahn

Seung-Hwan Won

Hak-seong Kim

Dong-Wook Roh

Dong-Hee Shim

Min-Jung Kim

Bong-Hoe Kim

Young-Soo Yuk

Dong-Youn Seo

Hak-Seong Kim

Seoung-Hoon Hwang

Seong-Hoon Hwang

Min-Seok Oh

A method of communication in a Multiple Input Multiple Output (MIMO) system having multiple transmitters including transmitting independent parallel downlink control signals including control information for each data stream, and transmitting the data streams.

Control signal transmitting method in multi-antenna system

A downlink control channel structure in a CDMA (Code Division Multiple Access) mobile communication system and its operating method are disclosed. Especially, a downlink control channel structure suitable for using a physical shared channel for a control channel, and a time-code allocating method using the same are disclosed. For this purpose, one shared channel is divided by both time and symbol level of orthogonal codes by using a unit channel.

Downlink control channel allocation method in mobile communication system

A power control method in a mobile communication system quickly reduces DPCCH power when ending the transmission of a HS-DPCCH signal down to a level requested by the transmission of a current DPCCH signal, thereby enabling effective control of uplink DPCCH power of a terminal and to significantly decrease uplink interference in the overall mobile communication system.

Uplink DPCCH transmission power control for terminal in soft handover

A sub-carrier allocation method including selecting a number of cells having a strongest inter-cell interference among cells in a multiple-cell environment, and selecting mutually exclusive sub-carrier sets for each cell selected having the strongest interference.

Sub-carrier allocation method for reducing inter-cell interference in OFDM cellular environment

A method of uplink transmission scheduling for a network including at least one radio network controller (RNC), at least one user equipment (UE), and a plurality of Node Bs. The method includes determining a parameter to be applied to an uplink transmission schedule of the at least one UE based on an interference effect caused by the at least one UE to a scheduling Node B or to neighboring Node Bs.

Uplink scheduling method of wireless mobile communication system

A method of uplink transmission scheduling for a network including at least one radio network controller (RNC), at least one user equipment (UE), and a plurality of Node Bs, with the steps of determining a parameter to be used in uplink transmission scheduling by considering uplink noise rise of the plurality of Node Bs, and performing the uplink transmission scheduling in accordance with the determined parameter. By determining the parameter upon considering the effects of the transmit power or transmit rate for a particular UE in soft handover with a scheduling Node B on the uplink noise rise of other neighboring Node Bs that are in soft handover but not scheduled with that particular UE, uplink transmission scheduling performance degradation can be prevented and more effective control of uplink noise rise at each Node B is possible.

Node B scheduling method for mobile communication system

A method of informing a terminal of uplink synchronization acquisition in a mobile communication system by using downlink transmit power control (TPC) bits. The base station modifies and transmits power control bit patterns according to certain 'N' values defined as a pattern 01 count, and the terminal detects an indicator that informs uplink synchronization acquisition by the modified power control bit pattern. The terminal also maintains the transmit power of the synchronization acquisition timing by increasing the transmit power by an amount equal to the decrease caused by receiving the power control bits for detecting uplink synchronization acquisition.

Growing community of inventors

Seoul, South Korea

Joon-Kui Ahn