| Patent application number | Description | Published |
|---|
| 20110274075 | APPARATUS FOR TRANSMITTING UPLINK SIGNAL IN MIMO WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - A method of multiplexing control information and data information in a wireless communication system is disclosed. The present invention includes mapping codewords corresponding to the data information to a preset number of layers, mapping the control information to the preset number of the layers, multiplexing the layer-mapped data information and the layer-mapped control information into a frequency region within an SC-FDMA symbol, and transmitting the SC-FDMA symbol to a base station via multiple antennas. | 11-10-2011 |
| 20110281585 | METHOD FOR PERFORMING A HANDOFF BY A COMP SET - Disclosed is a method for performing a handoff in a CoMP cluster. A user equipment measures a signal to interference-plus-noise ratio (SINR) value of each of the CoMP sets constituted by the combination of a plurality of base stations in one CoMP cluster. Then, the user equipment transmits the SINR value of each of the CoMP sets to a serving base station through a pilot strength measurement message (PSMM). Subsequently, the user equipment receives, from the serving base station, a message which instructs a handoff determined through the transmitted signal to interference-plus-noise ratio (SINR) values. | 11-17-2011 |
| 20110292865 | METHOD FOR ALLOCATING BACKHAUL LINK RESOURCES IN RELAY COMMUNICATION SYSTEM, AND METHOD & APPARATUS FOR TRANSMITTING & RECEIVING DATA USING SAME - The present invention relates to a method and an apparatus for transmitting and receiving data in a relay communication system. The method and the apparatus allocate resources by dividing backhaul link resources into plural partitions, and then transmit and receive data. The data transmission method of the invention comprises the steps of: allocating a certain number of initial OFDM symbol transmission periods in a sub-frame of a downlink channel to a control channel that transfers the control information of the terminal, wherein data is transmitted from a base station to a relay or terminal through the downlink channel; dividing the resource blocks excluded from the control channel of the sub-frame into at least two partitions based on frequency domain; determining whether or not each divided partition is allocated to the relay or terminal as resources; and allocating data to the determined partition in order to transmit the partition to the relay or terminal through the downlink channel, wherein the partition determined for the allocation of resources to the relay is allocated to the relay through time division multiplexing (TDM) or frequency division multiplexing of both control and data channels of the relay. | 12-01-2011 |
| 20110310747 | METHOD FOR AVOIDING INTERFERENCE - The present invention provides a method for avoiding interference resulting from data transmission between an adjacent second base station and a second relay station placed within the coverage of the adjacent second base station. The method for avoiding interference comprises: receiving the radio resource scheduling information from the adjacent second base station; checking the radio resources used in the data transmission between the adjacent second base station and the second relay station based on the received radio resource scheduling information; and scheduling at least one radio resource among uplink radio resources and downlink radio resources for at least one first terminal and at least one first relay station which are connected to a first base station in order to avoid interference with the checked radio resource if the radio resource used in the data transmission from the second base station to the second relay station is checked as the uplink resource or if the radio resource used in the data transmission from the second relay station to the second base station is checked as the downlink resource. | 12-22-2011 |
| 20110317616 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN A RELAY COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for data transmission, which properly use the time slot between a downlink transmission period and an uplink transmission period for a backhaul communication between a base station and a relay node in a time division multiplexing communication system. The method for data transmission in a relay communication system according to one embodiment of the present invention comprises the steps of: setting a data frame including a downlink subframe for transmitting a downlink signal, an uplink subframe for transmitting an uplink signal, and a special subframe existing between the downlink subframe and the uplink subframe; and transmitting/receiving data to/from the relay node or a terminal via the data frame set in the previous step. The special subframe includes a first transmission period and a second transmission period. The downlink signal is transmitted to the relay node or the terminal via the first transmission period, and the downlink signal is transmitted to the relay node via the second transmission period, and the terminal does not perform a reference signal decoding process during the second transmission period. Therefore, interference which may occur in the backhaul communication between the base station and the relay node can be minimized, the transmission volume of the backhaul communication between the base station and the relay node can be dynamically adjusted, and the backward compatibility between the present invention and conventional wireless communication systems and conventional terminals can be maintained at a maximum level. | 12-29-2011 |
| 20120020279 | MULTIPLE DATA STREAM TRANSMISSION METHOD AND APPARATUS IN RELAY SYSTEM - The present invention relates to a data transmission/receiving method and apparatus for overcoming interference between multiple data streams, by relaying only part of multiple data streams that are received from a source node during collaborative data transmission employing relay nodes. The multiple data stream transmission method of the present invention comprises: receiving a plurality of data streams from a source node; decoding the plurality of data streams received; selecting a portion of the successful decoded data streams; encoding the selected portion of the data streams; and sending the encoded data stream portion to a destination node. | 01-26-2012 |
| 20120033608 | METHOD AND APPARATUS FOR TRANSMITTING A REFERENCE SIGNAL IN A RELAY COMMUNICATION SYSTEM - The present invention relates to a method and to an apparatus for transmitting reference signals in a relay communication system. The method for transmitting reference signals through a type 2 relay node in a relay communication system comprises: a step in which a base station allocates a plurality of antenna ports in a mutually exclusive manner so that the antenna port of the base station and the antenna port of the peripheral relay node do not overlap each other; a step in which the base station and the relay node transmit reference signals to user equipment through the respective antenna ports mutually exclusively allocated; and a step in which the base station receives a channel state information from the user equipment to obtain channel state information between the base station and the user equipment and channel state information between the relay node and the user equipment. | 02-09-2012 |
| Patent application number | Description | Published |
|---|
| 20110131013 | UBIQUITOUS MONITORING SYSTEM - There is provided a ubiquitous monitoring system comprising a plurality of sensor nodes, one or more agent adapters receiving sensing data from the plurality of sensor nodes and determining to where the sensing data is transmitted according to one of characteristics of the plurality of sensing nodes and characteristics of the sensing data, one or more first monitoring agents receiving the sensing data from the agent adapter, one or more second monitoring agents receiving the sensing data from one of the agent adapter and the first monitoring agent, one or more third monitoring agents receiving the sensing data from one of the agent adapter and the second monitoring agent, and a monitoring engine receiving the sensing data from the third monitoring agent and monitoring the received sensing data. | 06-02-2011 |
| 20110137846 | UBIQUITOUS MONITORING SYSTEM CAPABLE OF PERFORMING INTEGRAL MONITORING FOR SMART OBJECTS - There is provided a ubiquitous monitoring system comprising a plurality of sensing nodes; one or more monitoring agents receiving and transmitting sensing data of the sensing nodes; a monitoring module receiving the sensing data from the one or more monitoring agents and managing the sensing data for each type and time; an analysis module deducing one of function information, performance information, and status information for each of smart objects in a ubiquitous space, based on the sensing data, deducing one of function information, performance information, and status information of a ubiquitous service performed by coupled smart objects, and transmitting a result of deduction; and a monitoring viewer displaying the result of deduction to a user. | 06-09-2011 |
| 20110145060 | BROADCASTING METHOD OF ADVERTISEMENT - There is provided a method of broadcasting advertisements comprising calculating online scheduling values in proportion to preferences of users in each area of advertisement display devices for advertisement items; calculating a standard deviation between the online scheduling values of the advertisement display devices; selecting an advertisement item having a maximum standard deviation; selecting an advertisement display device having a maximum online scheduling value; transmitting the selected advertisement item to the selected advertisement display device; and excluding advertisement display devices for the selected advertisement item and advertisement items for the selected advertisement display device. | 06-16-2011 |
