Showing papers by "LG Electronics published in 2012"

Coordinated multipoint transmission and reception in LTE-advanced: deployment scenarios and operational challenges

Abstract: 3GPP has completed a study on coordinated multipoint transmission and reception techniques to facilitate cooperative communications across multiple transmission and reception points (e.g., cells) for the LTE-Advanced system. In CoMP operation, multiple points coordinate with each other in such a way that the transmission signals from/to other points do not incur serious interference or even can be exploited as a meaningful signal. The goal of the study is to evaluate the potential performance benefits of CoMP techniques and the implementation aspects including the complexity of the standards support for CoMP. This article discusses some of the deployment scenarios in which CoMP techniques will likely be most beneficial and provides an overview of CoMP schemes that might be supported in LTE-Advanced given the modern silicon/DSP technologies and backhaul designs available today. In addition, practical implementation and operational challenges are discussed. We also assess the performance benefits of CoMP in these deployment scenarios with traffic varying from low to high load.

Method for performing device-to-device communication in wireless access system and apparatus therefor

Abstract: The present invention provides a method for performing device-to-device communication in a wireless access system that supports the device-to-device communication and an apparatus therefor. Specifically, the invention comprises the steps of: receiving, from a base station, device-to-device communication parameters for broadcasted device-to-device communication; transmitting a detection signal to one or more devices using the received device-to-device communication parameters; receiving, from the one or more devices, link measurement information for measuring a link between a first device and the one or more devices using the detection signal; selecting a second device for performing the device-to-device communication from the one or more devices using the link measurement information; and performing the device-to-device communication with the selected second device.

Electronic device and method of controlling the same

Abstract: To achieve the objects of the present invention, according to an aspect of the present invention, an electronic device is provided which includes a communication unit, an output unit, and a controller that connects a call received through the communication unit, performs an automatic conversation operation to conduct an automatic conversation with a calling party, and selectively performs one of a first operation to terminate the call and a second operation to generate recognition information on the automatic conversation and to output the recognition information based on the automatic conversation.

Method for transmitting control information and apparatus for same

Abstract: The present invention pertains to a wireless communication system. Particularly, the present invention relates to a method for transmitting uplink control information and an apparatus for the same, wherein the method comprises the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs, from a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs through the use of the selected uplink control channel resource.

Method and apparatus for inter-cell interference coordination for transmission point group

Abstract: The present invention relates to a wireless communication system, and more specifically to a method and an apparatus for inter-cell interference coordination for a transmission point group. The method for carrying out an interference coordination in a wireless communication system according to one embodiment of the present invention comprises a step for exchanging interference coordination messages between transmission point groups, wherein one transmission group comprises a plurality of transmission points, and the interference coordination message can comprises interference coordination information about each individual transmission point unit within the one transmission point group, and interference coordination information about the overall transmission point unit within the one transmission point group.

Mobile communication terminal and method of selecting menu and item

Abstract: A menu selection method, which includes selecting a main menu displayed on a touch device of a terminal, displaying one or more sub-menus corresponding to the selected main menu, sensing a direction of a dragging operation on the touch device, and executing a corresponding sub-menu located in the sensed direction of the dragging operation

Apparatus and method for multiple device voice control

Abstract: In an environment including multiple electronic devices that are each capable of being controlled by a user's voice command, an individual device is able to distinguish a voice command intended particularly for the device from among other voice commands that are intended for other devices present in the common environment. The device is able to accomplish this distinction by identifying unique attributes belonging to the device itself from within a user's voice command. Thus only voice commands that include attribute information that are supported by the device will be recognized by the device, and other voice commands that include attribute information that are not supported by the device may be effectively ignored for voice control purposes of the device.

Mobile terminal and controlling method thereof

Abstract: A mobile terminal and controlling method thereof are disclosed. The mobile terminal comprising a touchscreen configured to display a 1 st region that comprises a 1 st icon and one or more other icons and a controller configured to control the touchscreen to shift the 1 st region in a 1 st direction when the 1 st icon is selected by a touch and dragged in a 2 nd direction that is opposite to the 1 st direction, shift a position of the 1 st icon to a prescribed zone in the 1 st region when the dragged 1 st icon is released over the prescribed zone and arrange the one or more other icons of the 1 st region according to a prescribed formation.

Method for transmitting uplink control information, user equipment, method for receiving uplink control information, and base station

Abstract: In the present invention, a user equipment-specific offset information for indicating first physical uplink control channel (PUCCH) resources, which can be used for transmitting ACK/NACK related to a physical downlink control channel (PDCCH) that is transmitted from a data region of a downlink subframe, is provided to a user equipment by means of a base station. The user equipment, which receives the PDCCH from the data region of the downlink subframe, decides the PUCCH resource, based on offset information and an index of the resource that is included in the PDCCH, and transmits ACK/NACK information that corresponds to the PDCCH to the base station using the PUCCH resource.

Image display apparatus and method for operating the same

Abstract: An image display apparatus and a method for controlling the same are provided. The method includes displaying at least one of a left-eye object or a right-eye object when the image display apparatus has entered a 3-dimensional (3D) mode, displaying a movement amount object indicating the amount of movement of pixel arrangement of the at least one of the left-eye object or the right-eye object, receiving a pixel arrangement movement amount input through the movement amount object, and changing at least one pixel of the displayed left-eye object to a pixel of the right-eye object and displaying the changed pixel or changing at least one pixel of the displayed right-eye object to a pixel of the left-eye object and displaying the changed pixel according to the pixel arrangement movement amount input. This increases user convenience when stereoscopic images are displayed in an autostereoscopic manner.

Switched reluctance motor

Abstract: A switched reluctance motor includes: a stator including a cylindrical body, a plurality of salient poles coupled to an inner circumferential surface of the cylindrical body and provided with a winding coil, and an exterior member formed as a cylindrical shape by encompassing an assembly formed by coupling of the cylindrical body, the salient poles and the like; a rotor rotatably inserted inside the exterior member of the stator; a rotary shaft coupled to the rotor; and a phase indication magnet coupled to the rotor or the rotary shaft. Accordingly, an external structure of the motor is simplified, and the number of components and the number of assembling processes are remarkably reduced.

Signal transmission method and device in a wireless communication system

Abstract: One embodiment of the present invention relates to a method for transmitting signals over an unlicensed band phase of a base station in a wireless communication system, which comprises the steps of: transmitting a physical down-link control channel (PDCCH) from a licensed band; and transmitting a physical down-link shared channel (PDSCH) over a time interval of the unlicensed band corresponding to the sub-frame transmitted by the PDCCH, wherein a reservation signal can be transmitted to a pre-set point from the point the unlicensed band is available to the base station, if the base station performs wave transmission sensing for the unlicensed band for transmission of the PDSCH, and the pre-set point is earlier than the point at which the unlicensed band becomes available from the transmission sensing results.

Method and apparatus for transmitting control information in wireless communication system

Abstract: The present invention relates to a method for receiving a downlink control signal in a TDD-based wireless communication system, and to an apparatus therefor. The method comprises receiving a downlink signal via a downlink interval in a specific frame including the downlink interval, a guard interval and an uplink interval. A combination of the downlink interval, the guard interval and the uplink interval is given using configuration information on the specific subframe. When the configuration information is given such that the length of the downlink interval is larger than a specific value, detecting a first type of PDCCH is performed in the specific subframe. When the configuration information is given such that the length of the downlink interval is equal to or smaller than the specific value, detecting the first type of PDCCH is skipped in the specific subframe.

Mobile terminal and operation control method thereof

Abstract: There is disclosed a mobile terminal for providing a convenient and effective contact management function by providing differentiated services for two or more connected contacts, respectively. To this end, there is provided an operation control method of a mobile terminal, and the method may include displaying a contact list containing a plurality of contacts; designating a first contact in the contact list as a first recipient according to a user's input; designating at least one second contact as a second recipient when there exists the at least one second contact connected to the first contact; and performing a first operation for the first recipient, and performing a second operation subordinate to the first operation for the second recipient.

Method for allowing base station to support device-to-device (d2d) communication in wireless communication system, and method for allowing d2d device to efficiently transmit d2d communication request signal

Abstract: Method for supporting device-to-device (D2D) communication by a base station includes: receiving first signals for requesting D2D communication from a plurality of first D2D devices; identifying number of D2D devices which have requested the D2D communication based upon the first signals; allocating resources for transmitting a second signal for requesting D2D communication between the D2D devices based upon number of the plurality of first D2D devices which have been identified; and transmitting information on the allocated resources to the plurality of first D2D devices, wherein the resource allocation can be performed to distinguish combinations of an index of a D2D device, which transmits the second signal, and an index of a D2D device, which receives the second signal, from each other with respect to at least one of time, frequency, code, and space domains with respect to the plurality of first D2D devices.

Highly efficient polymer light-emitting diodes using graphene oxide as a hole transport layer.

Abstract: We present an investigation of polymer light-emitting diodes (PLEDs) with a solution-processable graphene oxide (GO) interlayer. The GO layer with a wide band gap blocks electron transport from an emissive polymer to an ITO anode while reducing the exciton quenching between the GO and the active layer in place of poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS). This GO interlayer maximizes hole–electron recombinations within the emissive layer, finally enhancing device performance and efficiency levels in PLEDs. It was found that the thickness of the GO layer is an important factor in device performance. PLEDs with a 4.3 nm thick GO interlayer are superior to both those with PEDOT:PSS layers as well as those with rGO, showing maximum luminance of 39 000 Cd/m2, maximum luminous efficiencies of 19.1 Cd/A (at 6.8 V), and maximum power efficiency as high as 11.0 lm/W (at 4.4 V). This indicates that PLEDs with a GO layer show a 220% increase in their luminous efficiency and 280% incre...

Gesture based unlocking of a mobile terminal

Abstract: A method, system, and device for controlling a mobile device with a touch screen are disclosed. According to one embodiment, the mobile terminal includes a touch screen and a controller configured to display a uniform image of a first enclosure and an unlock image of a second enclosure bounded by the uniform image of the first enclosure on the touch screen in response to detection of a contact on the touch screen while the mobile terminal is in an unlock state. The controller is further configured to enlarge the unlock image of the second enclosure in accordance with movement of the contact away from an initial position of the contact while the contact on the touch screen is maintained, and to unlock the mobile terminal in response to a release of the contact when the unlock image of the second enclosure is enlarged to reach or exceed the uniform image of the first enclosure.

Mobile terminal and method of controlling operation thereof

Abstract: A mobile terminal and a method of controlling an operation thereof are disclosed. In the method of controlling the operation of the mobile terminal, the mobile terminal is communicatively with a head mounted display for displaying an augmented reality (AR) screen obtained by combining a virtual image with a real environment. If image data acquired through a camera is analyzed and a predetermined gesture input is detected, the head mounted display is controlled such that a display change corresponding to the detected gesture input is displayed on the AR screen. In a state of displaying the AR screen through the head mounted display, various operations related to the mobile terminal can be controlled according to the predetermined gesture input.

Method and device for communicating device-to-device

Abstract: The present invention relates to a wireless communication system and more particularly, to a method and device for communicating device-to-device. A method for transmitting a signal from a first device to a second device according to one embodiment of the present invention includes the steps of: requesting a resource allocation for a signal transmission to the second device from a base station by the first device; receiving scheduling information for the signal transmission to the second device from the base station; and transmitting the signal from the first device to the second device based on the scheduling information. The scheduling information includes information about an uplink resource for transmitting the signal from the first device to the second device.

Method for transmitting an uplink signal, method for receiving an uplink signal, user equipment, and base station

Abstract: The invention relates to a method comprising classifying user equipment (UE) cells, to which carrier aggregation is applied, into a plurality of time advance groups. Uplink-time synchronization is managed using the time synchronization of a primary cell (Pcell) in the time synchronization group to which the primary cell belongs. For other time synchronization groups, the uplink time synchronization is managed using the time synchronization of a secondary cell (SCell) that is particularly set in the relevant time synchronization group. Thus, the plurality of time synchronizations can be effectively managed for the UE and a base station (BS).

Mobile terminal and display controlling method thereof

Abstract: A mobile terminal and display controlling method thereof are disclosed, by which a different function may be executed in accordance with whether a means for touching a touchscreen is a user finger or a touch pen.

Method for receiving downlink signal, and user device, and method for transmitting downlink signal, and base station

Abstract: The present invention provides a method and a device for transmitting/receiving a control channel in a downlink subframe, which divides into a control area and a data area. The present invention enables the downlink control channel transmitted from the data area of a specific carrier wave to be configured to carry scheduling information on another carrier wave.

Robot cleaner, and system and method for remotely controlling the same

Abstract: Disclosed are a robot cleaner, and a system and method for remotely controlling the robot cleaner Since the robot cleaner is accessed to a terminal through a network, the robot cleaner can be controlled in more various manners A situation inside a house can be real-time checked from the outside, and the satiation can be rapidly handled according to a state of the robot cleaner Since the terminal and the robot cleaner are connected to each other through a network, a voice call function and an interphone function can be implemented Furthermore, the robot cleaner can perform automatic cleaning, manual cleaning, and reservation cleaning in an autonomous manner, or in a remote-controlled manner

Image display apparatus and method for operating the same

Abstract: A method for operating an image display apparatus is disclosed. The method includes receiving a three-dimensional (3D) video signal, displaying an image based on the received 3D video signal on a display, the image being a video or a still image, displaying a guideline on the display, for adjustment of the received 3D video signal, receiving an adjustment input for the 3D video signal, adjusting the 3D video signal based on the adjustment input, and displaying a 3D image based on the adjusted 3D video signal on the display.

Mobile terminal, image display device mounted on vehicle and data processing method using the same

Abstract: A mobile terminal, image display device mounted on a vehicle and data processing method using the same are disclosed. The present invention includes a display unit outputting an image, a communication unit transceiving data with an external mobile terminal, and a controller controlling the communication unit to receive a screen information of the mobile terminal and a 1st control information of the screen information from the mobile terminal and to transmit a 2nd control information of the screen information to the mobile terminal, the controller controlling the display unit to transform the 1st control information of the screen information and to output the transformed screen information to a user. The 1st control information includes an image size transformation information of the screen information and an image compression format information of the screen information. The 2nd control information includes a supportable compression format information. Accordingly, a transmission rate of screen data can be improved in a manner of adjusting a compression scheme and a loss rate of the transmission screen and the like to be suitable for a screen situation in transmitting screen data between the mobile terminal and the image display device.

Method for transmitting/receiving signal and device therefor

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring a HARQ-ACK response from M(M≥ 1) number of subframes; and executing the process for transmitting the HARQ-ACK response to the one or more signals in a specific subframe corresponding to the M number of subframes, wherein, only when the specific subframe is set as an uplink in all of the plurality of serving cells, the HARQ-ACK response to the one or more signals are transmitted through the specific subframe.

Method and apparatus for transmitting control information in a wireless communication system

Abstract: The embodiments of the present invention relate to a method for transmitting control information by a base station in a wireless communication system, wherein the method comprises a step of transmitting a physical downlink control channel (PDCCH). The downlink control information of the PDCCH may include an indicator indicating whether or not a reference signal is transmitted in a time domain corresponding to the subframe in which the PDCCH is transmitted.

Method for transmitting control information, and apparatus therefor

Abstract: A method for transmitting uplink control information by a user equipment (UE) configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system is discussed. The method includes identifying, by the UE, a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK)(0) and a HARQ-ACK(1); and transmitting, by the UE, bits b(0)b(1) using a Physical Uplink Control Channel (PUCCH) resource among a plurality of PUCCH resources based on the HARQ-ACK(0) and the HARQ-ACK(1) to a base station (BS) for identifying the HARQ-ACK(0) and the HARQ-ACK(1). The b(0)b(1) and the PUCCH resource are given according to a relation including Table 1, where the HARQ-ACK(0) indicates an ACK/Negative ACK (ACK/NACK)/Discontinuous Transmission (DTX) response to a data block related to the primary cell, and the HARQ-ACK(1) indicates an ACK/NACK/DTX response to a data block related to the secondary cell.

Electronic device and method of controlling the same

Abstract: According to the present invention, an electronic device is disclosed that includes a display unit including a bent state and a flat state that are distinguished from each other depending on a degree of bending, wherein the display unit is divided into at least two regions in the bent state by bending and a control unit configured to display information on the display unit according to a first video output characteristic when the display unit is in the flat state and to display information on a first region of the at least two regions according to a second video output characteristic and information on a second region of the at least two regions according to a third video output characteristic when the display unit changes from the flat state to the bent state.