Patent application number | Description | Published |
20120099545 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe. | 04-26-2012 |
20120327804 | METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER - The present description relates to a method for controlling uplink power in a distributed multi-node system, comprising the following steps: receiving reference signals from a plurality of antenna nodes containing at least one antenna; estimating average propagation loss on the basis of the receiving power of the reference signals received from the plurality of antenna nodes; receiving, via a downlink control channel, noise and interference (NI) information from a base station which contains the plurality of antenna nodes; and determining uplink transmission power using the estimated average propagation loss and the received noise and interference information. | 12-27-2012 |
20130095845 | APPARATUS FOR SUPPORTING A MOBILE STATION TO COMMUNICATE WITH TWO OR MORE NETWORKS IN A MOBILE COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus for supporting a mobile station (MS) to perform a communication using a plurality of networks in a mobile communication system and method thereof are disclosed. According to the present invention, a serving base station (BS) of the MS receives information on at least one heterogeneous network from a BS of each of the at least one heterogeneous network. The serving BS of the MS selects at least one of a heterogeneous network to be allocated to the MS and a channel of the heterogeneous network based on the received information on the at least one heterogeneous network. And, the serving BS of the MS transmits an information on the selected heterogeneous network to the MS. | 04-18-2013 |
20130114557 | DEVICE AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM SIMULTANEOUSLY SUPPORTING A PLURALITY OF WIRELESS COMMUNICATION METHODS - Disclosed are a device and method for transmitting/receiving control information in a wireless communication system simultaneously supporting a first wireless communication method and a second wireless communication method. In the base station device transmitting control information according to the present invention, the transmitter may transmit second control information including information on the resource size of the first control information for uplink power control. At this point, the resource size of the first control information is determined by the number of uplink subframes and downlink subframes available in one frame, the number of fast feedback channels (FFBCHs), and a ceil function rounding off to a whole number. | 05-09-2013 |
20130114570 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK DATA IN A WIRELESS ACCESS SYSTEM - The present description relates to a method for a terminal to transmit uplink (UL) data in a wireless access system, comprising the following steps: receiving uplink resource allocation information for uplink data transmission from a base station via a downlink control channel, wherein the uplink resource allocation information includes resource block allocation information for each slot of a subframe and modulation and coding scheme (MCS) information; receiving, from the base station, sequence information allocated to each terminal so as to transmit uplink data through a code division multiplexing (CDM) scheme in cooperation with other terminals in a resource block pair region of the subframe; and transmitting uplink data to the base station through the resource block pair region in accordance with the received sequence information. | 05-09-2013 |
20130116002 | TERMINAL DEVICE AND METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER FOR INITIAL DATA TRANSMISSION AFTER NETWORK ENTRY IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a terminal device and method for controlling uplink transmission power for initial data transmission after network entry in a wireless communication system. The terminal device according to the present invention comprises a processor and a transmitter. The processor determines an initial offset value for determining uplink transmission power for an initial data transmission using the power value ultimately used in an initial ranging transmission and the number of initial ranging subcarriers, and determines an uplink transmission power value for an initial data transmission using the determined initial offset value. The transmitter transmits initial data to a base station with the determined uplink transmission power value for an initial data transmission. | 05-09-2013 |
20130121297 | TERMINAL DEVICE AND METHOD FOR TRANSMITTING A POWER HEADROOM REPORT IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE COMPONENT CARRIERS - The present invention relates to a terminal device and method for transmitting a power headroom report (PHR) in a wireless communication system supporting multiple component carriers. The terminal device of the present invention comprises a transmitter for transmitting, to a base station, PHR information on at least one component carrier and information on the maximum power reduction (MPR) of the terminal device, wherein the PHR information on the at least one component carrier includes component carrier index information, and the MPR information of the terminal device may be an MPR value of said at least one component carrier, or a sum of the MPR values of said at least one component carrier. | 05-16-2013 |
20130156014 | METHOD FOR TRANSMITTING AN SRS-TRIGGERING-BASED SRS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator. | 06-20-2013 |
20130163528 | METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER FOR TRANSMITTING A PLURALITY OF CODE WORDS IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS A PLURALITY OF ANTENNAS, AND APPARATUS FOR PERFORMING THE METHOD - The present invention relates to a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, and a method in which the terminal performs the control. In a terminal which controls uplink transmission power for transmitting a plurality of code words in a wireless communication system that supports a plurality of antennas, a receiver receives, from a base station, an indicator that concerns the determination of the transmission power for each code word of the plurality of code words. A processor determines uplink transmission power for transmitting the plurality of code words on the basis of the indication value of the indicator. If the indication value is zero, the processor allocates the same uplink transmission power to each of the plurality of code words. | 06-27-2013 |
20130294266 | APPARATUS AND METHOD FOR ESTIMATING A LOCATION OF A MOBILE STATION IN A WIRELESS LOCAL AREA NETWORK - A method for estimating a location of a mobile station includes transmitting a position request signal, including at least departure time information or an identifier of the mobile station, to an AP by synchronizing with the AP, receiving first position information, including at least a calculated first location of the mobile station or a calculated first distance between the mobile station and the AP and departure time information of a position response signal, from the AP, calculating a ToA of a signal between the mobile station and the AP based on the departure time information of the position response signal, calculating at least a second distance between the mobile station and the AP or a second location of the mobile station using the ToA, and determining a final location of the mobile station based on the first position information and at least the second distance or the second location. | 11-07-2013 |
20130303171 | METHOD FOR PERFORMING INTER-MOBILE STATION (MS) HANDOVER IN RADIO ACCESS SYSTEM AND MS THEREFOR - A method of performing inter-mobile station (MS) handover in a radio access system and an MS therefor are disclosed. The method includes a first MS receiving an inter-MS handover indication message from a base station (BS) while performing inter-MS communication with a second MS, and the first MS performing inter-MS handover from the second MS to another MS according to the inter-MS handover indication message. The inter-MS handover is decided according to channel quality between the first MS and the second MS or channel quality between the second MS and the BS. | 11-14-2013 |
20130310075 | METHOD AND APPARATUS FOR ESTIMATING LOCATION OF USER EQUIPMENT IN WIRELESS NETWORK - A positioning method of estimating a location of a user equipment (UE) in a wireless network is disclosed. The positioning method includes performing positioning using a global positioning system (GPS)-based signal, checking whether the UE is located indoors based on received signal intensity of the GPS-based signal, and changing a positioning method using the GPS-based signal to a positioning method using a local area network (LAN)-based signal when it is determined that the UE is located indoors, and performing a positioning using the changed positioning method using the LAN-based signal. | 11-21-2013 |
20130331090 | APPARATUS FOR PERFORMING UE-TO-UE COOPERATIVE COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus and method for performing UE-to-UE cooperative communication in a wireless communication system are disclosed, by which implementation of a UE cooperative communication using a cellular network is facilitated. The present invention includes activating an application to perform the UE-to-UE cooperative communication, receiving first data via a first network from a base station recognizing that the application has been activated, receiving second data via a second network from a cooperative user equipment linked for the UE-to-UE cooperative communication, and performing a service by adding the first data and the second data together through the application, wherein the first network and the second network correspond to heterogeneous networks, respectively. | 12-12-2013 |
20130336212 | METHOD OF SHARING A SERVICE PROVIDED TO A NEIGHBORING USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method of sharing a service provided to a neighboring user equipment, which is shared by a user equipment in a wireless communication system, includes the steps of obtaining at least one URL (uniform resource locator) information corresponding to an IP (internet protocol)-based service provided by a first communication network by the neighboring user equipment, executing an application corresponding to the obtained URL information and making a request for the IP-based service to the first communication network, receiving the requested IP-based service from the first communication network, and controlling the application to execute the received IP-based service. | 12-19-2013 |
20140016520 | METHOD WHEREIN A BASE STATION TRANSMITS AND RECEIVES TDD CONFIGURATION INFORMATION REGARDING A PLURALITY OF CCS IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING A PLURALITY OF THE CCS, AND APPARATUS FOR SAME - The method of transmitting a TDD (time division duplex) configuration information on a plurality of component carriers (CC) by a base station in a wireless communication system supporting a plurality of the CCs according to the present invention includes determining at least one first CC index to be configured with an uplink-downlink configuration, which is identical with a uplink-downlink configuration of at least one CC configured to a different base station, among a plurality of the CCs configured to the base station; and configuring a CC corresponding to a frequency band of the determined at least one first CC index among a plurality of CCs configured to at least one user equipment with the uplink-downlink configuration, wherein the CC corresponding to the determined at least one first CC index is a CC configured to an identical frequency band between the base station and the different base station. | 01-16-2014 |
20140036738 | METHOD FOR SUPPORTING A DYNAMIC-TIME DIVISION DUPLEX (D-TDD) DOWNLINK-UPLINK CONFIGURATION IN A WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR - Disclosed is a method for supporting a dynamic-time division duplex (D-TDD) downlink-uplink configuration in a wireless communication system and to an apparatus therefor. A method in which a first network node supports a dynamic-time division duplex (D-TDD) downlink-uplink configuration according to one embodiment of the present invention comprises a step of selecting two or more TDD downlink-uplink configurations from among a plurality of predefined TDD downlink-uplink configurations based on a predetermined rule so as to establish a set of TDD downlink-uplink configurations, wherein the predetermined rule may enable the selection of two or more TDD downlink-uplink configurations from a number of downlink subframe durations constituted by subframes other than a downlink subframe, or from a number of uplink subframe durations constituted by subframes other than an uplink subframe. | 02-06-2014 |
20140045520 | APPARATUS AND METHOD FOR MEASURING POSITION OF TERMINAL LOCATED IN INDOOR USING WIRELESS NETWORK - A method and apparatus for measuring the position of a terminal located in indoor using a wireless network is disclosed. The method for measuring a position of a terminal located in indoor using a wireless network includes receiving measurement result information obtained by performing measurement with respect to signals from three or more access points (APs), and calculating the position of the terminal using the measurement result information. The measurement result information includes signal strengths measured with respect to signals from a first band and a second band of each of the three APs. | 02-13-2014 |
20140064126 | APPARATUS AND METHOD FOR CALCULATING LOCATION OF MOBILE STATION IN WIRELESS NETWORK - A method for measuring the indoor position of a UE by a network node according to an embodiment of the present invention may include: receiving, from the UE, measurement information including the intensity of a signal received from an access point (AP) and feedback information including information about a sensor configured to measure movement of the UE and sensor measurement information regarding movement of the UE, measured by the sensor; estimating the position of the UE based on the measurement information and received signal strength (RSS) from the AP, predetermined for each reference point; and calculating the indoor position of the UE by applying the information about the sensor and a sensor correction factor corresponding to the sensor measurement information to the estimated position of the UE. | 03-06-2014 |
20140105178 | METHOD FOR SIMULTANEOUS HANDOVER IN A WIRELESS ACCESS SYSTEM THAT SUPPORTS DEVICE-TO-DEVICE COMMUNICATION AND APPARATUS FOR SUPPORTING THE METHOD - Disclosed are a method for simultaneously handing over devices which perform device-to-device communication to another cell in a wireless access system that supports device-to-device communication, and an apparatus for supporting the method. The method for simultaneously handing over devices in a wireless access system that supports direct device-to-device communication according to one embodiment of the present invention may comprise the following steps: detecting an occurrence of a handover condition in a first device that performs direct device-to-device communication; transmitting, to a second device that performs direct device-to-device communication, a cell state check request message for requesting information on a channel state with respect to a base station; searching for a target cell for handover by the first device; receiving, from the second device, a cell state check response message containing information on the channel state; searching for a common cell in which the target cell searched for by the first device and the target cell contained in the information on the channel state coincide with each other; and transmitting, to the second device, a common cell indication message for indicating the simultaneous handover of devices. Here, the common cell indication message may contain information on the common cell. | 04-17-2014 |
20140133371 | APPARATUS FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN A WIRELESS ACCESS SYSTEM AND METHOD THEREOF - Disclosed are an apparatus for transmitting and receiving downlink control information in a TDD (time division duplex) wireless access system and method thereof. The present invention includes performing a blind decoding on a transmitting region of e-PDCCH (enhanced physical downlink control channel) transmitted by being multiplexed with PDSCH (physical downlink shared channel) and receiving the DCI through the blind decoding of the e-PDCCH. In particular, a last symbol of the transmitting region of the e-PDCCH in a special subframe is configured in accordance with a configuration of the special subframe. | 05-15-2014 |
20140140296 | PRIORITY-BASED DATA TRANSMISSION METHOD IN A PEER-TO-PEER COMMUNICATION SYSTEM - The present invention relates to a wireless access system, and more particularly, to methods for transceiving data in a peer-to-peer (P2P) communication system, and to apparatuses for supporting the methods. According to one embodiment of the present invention, a method for transmitting data from a first device, which is a peer device in a P2P communication system, comprises the steps of: receiving an acknowledgement signal broadcast from a second device; comparing the priority of a P2P communication link of the second device and the priority of a P2P communication link of the first device on the basis of a resource region in which the acknowledgement signal is broadcast; and determining, by the first device on the basis of the first priority, whether or not to transmit the data or make a concession to data transmission. | 05-22-2014 |
20140146750 | METHOD FOR DETERMINING UPLINK TRANSMISSION POWER IN A NETWORK INCLUDING A PLURALITY OF CELLS, AND APPARATUS THEREFOR - Disclosed is a method for determining uplink transmission power in a network including a plurality of cells, and an apparatus therefor. The method for a terminal to determine uplink transmission power in a network including a plurality of cells may comprise the following steps: receiving information including values of path-loss compensation factors set for each of the plurality of cells; determining uplink transmission power using the value of the path-loss compensation factor corresponding to the cell, from among the plurality of cells, in which the terminal is currently located; and a step of transmitting an uplink signal using the determined transmission power. | 05-29-2014 |
20140153534 | TERMINAL APPARATUS FOR CONTROLLING UPLINK SIGNAL TRANSMISSION POWER AND METHOD FOR SAME - A terminal apparatus for controlling uplink signal transmission power and a method for same are disclosed. A method for the terminal, which communicates with a plurality of cooperation nodes that are controlled by one base station in one cell, controlling the uplink signal transmission power in a wireless communication system comprises the steps of: receiving diversity gain information of the plurality of cooperation nodes; determining the uplink transmission power of the uplink signal by considering the diversity gain information; and transmitting the uplink signal at the uplink transmission power that is decided, wherein the diversity gain information is an offset value which considers a diversity margin of the plurality of cooperation nodes. | 06-05-2014 |
20140171144 | TERMINAL EQUIPMENT AND METHOD FOR CONTROLLING UPLINK TRANSMISSION POWER - The present invention relates to terminal equipment and a method for controlling uplink transmission power. The method, in which terminal equipment controls uplink transmission power in a wireless communication system, includes the steps of: determining uplink transmission power when at least one type of channel is employed for simultaneous transmission at a cell among a first type of channel corresponding to a plurality of PUCCHs, a second type of channel corresponding to PUSCHs including a UCI, and a third type of channel corresponding to PUSCHs excluding the UCI; and transmitting the at least one type of channel via the determined uplink transmission power, wherein the uplink transmission power is determined by applying a scaling factor to a power value of the at least one type of channel when the power value exceeds the maximum transmission power or remaining transmission power. | 06-19-2014 |
20140177467 | METHOD FOR TERMINAL DECIDING UPLINK TRANSMISSION POWER IN MACRO CELL ENVIRONMENT COMPRISING REMOTE RADIO HEAD (RRH), AND TERMINAL APPARATUS FOR SAME - Disclosed is a method for a terminal deciding an uplink transmission power in a macro cell environment, comprising at least one remote radio head (RRH). The method for the terminal deciding the uplink transmission power, comprises the steps of: receiving from the base station configuration information on the base station and on a state channel information-reference signal (CSI-RS) of the at least one RRH and CSI-RS transmission power information; measuring the strength of a received signal of the CSI-RS which is received from the at least one RRH; and estimating downlink path loss that corresponds to a node that is set as a reception point or a reception RRH by using the configuration information on the CSI-RS and the CSI-RS transmission power information. | 06-26-2014 |
20140177532 | TERMINAL APPARATUS FOR CONTROLLING DOWNLINK TRANSMISSION POWER AND METHOD FOR SAME - A terminal apparatus for controlling downlink signal transmission power and a method for same are disclosed. The present invention is a method and a terminal apparatus for transmitting downlink transmission power, a method for the base station controlling the downlink transmission power in a wireless communication system comprising the steps of: transmitting a physical downlink shared channel (PDSCH) to the terminal through a carrier comprising orthogonal frequency distribution multiplexing (OFDM) symbols which do not have a cell-specific reference signal (CRS); and transmitting an upper layer parameter for controlling the transmission power of the physical downlink shared channel (PDSCH), wherein the upper layer parameter comprises information on at least one of PDSCH energy per resource element (EPRE), channel state information reference signal (CSI-RS) EPRE, and demodulation reference signal (DM-RS) EPRE. | 06-26-2014 |
20140177586 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS ACCESS SYSTEM - The present invention relates to a method for transmitting channel quality control information in a wireless access system, which supports a hybrid automatic repeat request (HARQ), by using two transmission blocks. The method, according to one embodiment of the present invention, comprises the steps of: a terminal receiving a physical downlink control channel (PDCCH) signal including downlink control information (DCI); calculating the number of encoding symbols required for transmitting the channel quality control information by using the DCI; and transmitting the channel quality control information through a physical uplink shared channel (PUSCH) on the basis of the number of the encoding symbols. | 06-26-2014 |
20140192687 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and apparatus for transmitting uplink control information in a wireless communication system. A method for transmitting uplink control information by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, information on a primary cell (Pcell) and at least one secondary cell (Scell) configured for said terminal; and transmitting the uplink control information through the specific Scell configured for said terminal when said Pcell and said Scell are set to different time division duplex (TDD) downlink (DL)/uplink (UL) configurations and said terminal is set to simultaneously transmit a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH). | 07-10-2014 |
20140204842 | METHOD FOR CONTROLLING PUCCH TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR SAME - A method for controlling a physical uplink control channel (PUCCH) transmission power in a wireless communication system and a terminal apparatus are disclosed. A terminal for controlling the physical uplink control channel (PUCCH), according to the present invention, comprises: a processor for deciding the uplink transmission power for a PUCCH format 3 transmission; and a transmitter for transmitting the PUCCH format 3 at the uplink transmission power that is decided, wherein the processor distinguishes and decides the uplink transmission power from bits of the PUCCH format 3, on the basis of a predetermined number of information bits, the processor controls so that a different diversity method is applied to the PUCCH format 3, on the basis of the predetermined number of information bits, and wherein the transmitter transmits the PUCCH format 3 to which the different diversity method is applied with respect to the PUCCH format 3, by means of the processor, on the basis of the predetermined number of information bits. | 07-24-2014 |
20140219234 | METHOD FOR TRANSMITTING POWER HEADROOM REPORT, AND APPARATUS FOR SAME - Disclosed are a method for transmitting a power headroom report (PHR) and a terminal apparatus for same. The method for transmitting a PHR from a terminal in a network, which includes a base station and at least one cooperative node performing cooperative communication with the base station, includes a step of determining a sounding reference symbol (SRS) transmission power for transmitting SRSs in a specific serving cell, wherein the determined SRS transmission power is a value determined for the transmission of the SRSs to a plurality of nodes including a first node corresponding to the base station and the at least one cooperative node. | 08-07-2014 |
20140286293 | METHOD FOR PERFORMING DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - The present invention discloses a method for performing device-to-device communication in a wireless access system supporting the device-to-device communication, and an apparatus for same. More specifically, the method comprises the steps of: a first device receiving from a base station resource allocation information for device-to-device communication with a second device; the first device transmitting to the second device an initial signal for device-to-device communication through a resource that is allocated; the first device scanning a response signal which is transmitted from the second terminal; and the first device performing the device-to-device communication with the second device when the first device receives the response signal from the second device, wherein the initial signal comprises a first reference signal for matching synchronization between the first and second devices, and a second reference signal for estimating a channel between the first device and the second device. | 09-25-2014 |
20140314039 | METHOD FOR REQUESTING DEVICE-TO-DEVICE COMMUNICATION IN WIRELESS ACCESS SYSTEM AND APPARATUS FOR SAME - Disclosed are a method for requesting device-to-device communication in a wireless access system that supports device-to-device communication and an apparatus for the method. More particularly, the method comprises the steps of: receiving, from a first device, request information for requesting device-to-device communication with a second device; transmitting, to the second device, check information to inquire whether to accept device-to-device communication with the first device; receiving, from the second device, response information indicating that device-to-device communication is accepted; and, if the second device has accepted the device-to-device, transmitting resource allocation information for device-to-device communication to the first device and the second device. | 10-23-2014 |
20140321337 | METHOD FOR TRANSMITTING UPLINK CONTROL CHANNEL BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting an uplink control channel by a terminal in a wireless communication system that supports a plurality of serving cells for the terminal, comprises a step of receiving information on a plurality of serving cells include a P-cell and at least one S-cell constructed for the terminal and timing division duplex (TDD) downlink/uplink setup information for each of the plurality of serving cells, and a step of, in case of transmitting the plink control channel via a specific subframe interval, transmitting the uplink control channel through a first S-cell allocated as an uplink subframe with respect to the specific subframe interval when it is determined, based on the TDD downlink/uplink setup information, that the specific subframe interval is allocated as a downlink subframe with respect to the P-cell. | 10-30-2014 |
20140321442 | METHOD AND DEVICE FOR SETTING UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method of setting uplink transmission power by a terminal in a wireless communication system. The method of setting uplink transmission power by the terminal may include: assigning a plurality of serving cells by a base station; transmitting a random access message including a random access preamble from a secondary cell Scell of the plurality of serving cells to the base station; receiving a random access response message from the base station in response to the random access message; and resetting, in response to receiving the random access response message, a factor of an accumulated mode representing the current uplink transmission control adjusted state at the Scell to which the random access message is transmitted. | 10-30-2014 |
20140348078 | TERMINAL DEVICE FOR CONTROLLING UPLINK SIGNAL TRANSMISSION POWER, AND METHOD THEREFOR - Embodiments of the present invention relate to a method and terminal device for controlling uplink transmission power. According to one embodiment, in which a terminal that communicates with cells of each timing alignment (TA) group controls uplink transmission power in the event a plurality of TA groups including one or more cells exists in a wireless communication system, a method includes: determining the uplink transmission power for at least one channel in the event at least two channels from among a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH) including a plurality of pieces of uplink control information (UCI), a PUSCH including no UCI, a physical random access channel (PRACH), and a sounding reference signal (SRS) are simultaneously transmitted in the same subframe in each specific cell of the plurality of TA groups. The uplink transmission power is determined in consideration of a TA group index. | 11-27-2014 |
20140355483 | DEFINITION OF NEW IDENTIFIER IN WIRELESS ACCESS SYSTEM THAT SUPPORTS DEVICE TO DEVICE COMMUNICATION, AND TRANSMISSION METHOD AND DEVICE USING SAME - The present invention provides definition of an identifier which is required for recognizing information essential for device to device communication, a transmission method thereof, and devices that support the same. The method for supporting device to device (D2D) communication in a wireless access system that supports D2D communication as one embodiment of the present invention comprises the steps of allowing a first D2D device to receive, from a base station, a broadcast message which contains a common D2D identifier (C-D2D-RNTI) for all D2D devices that perform D2D communication; and allowing the first D2D device to receive the transmitted D2D-related information by using the C-D2D-RNTI. In this situation, the wireless access system can support both D2D communication and cellular communication for a normal terminal instead of the D2D device. | 12-04-2014 |
20140362795 | METHOD OF RETRANSMITTING DATA IN A WIRELESS CONNECTION SYSTEM SUPPORTING MACHINE-TO-MACHINE COMMUNICATION, AND DEVICE FOR SUPPORTING SAME - The present invention relates to a wireless connection system, and in particular, relates to methods of retransmitting data in a machine-to-machine communication system, methods of managing the data, and devices for supporting machine-to-machine communication. As one aspect of the present invention, the method of retransmitting data in the wireless connection system supporting the machine-to-machine communication may include: allocating a data slot for retransmitting data from a first machine, from among two or more peer machines, by transmitting a transmit request message to a second machine; receiving a transmit response message transmitted form the second machine in response to the transmit request message; and retransmitting data to the second machine through the allocated data slot. | 12-11-2014 |
20150085836 | UPLINK SIGNAL TRANSMISSION METHOD AND STATION DEVICE, AND UPLINK SIGNAL RECEIVING METHOD AND ACCESS POINT DEVICE - The present invention provides an uplink signal transmission method and apparatus. A method for transmitting an uplink signal to an access point (AP) by means of a station (STA) in a Wireless local area network (WLAN) system comprises: sensing a medium being occupied by another STA; and transmitting the uplink signal to the AP on the medium being occupied by another STA. | 03-26-2015 |
20150092876 | METHOD AND APPARATUS FOR AMPLIFYING MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for amplifying a MIMO signal in a wireless communication system are disclosed. A signal amplifier for amplifying a MIMO signal in a wireless communication system includes: a recognition module for recognizing network information and antenna information of a source device; and an adaptive link construction module for forming a link between a plurality of antenna with respect to the source device and a plurality of antenna with respect to the destination device on the basis of the recognized information. | 04-02-2015 |
20150119097 | APPARATUS FOR BOOSTING MIMO (MULTI-INPUT MULTI-OUTPUT) SIGNAL IN A WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus for boosting an MIMO (multi-input multi-out-put) signal and method thereof are disclosed. The present invention includes determining an initial transmit power value of the signal booster and applying an initial transmit power increment/decrement value to a sum of the initial transmit power value and the initial transmit power increment/decrement value in each preset time interval during an initial power control period. | 04-30-2015 |
20150124895 | WIRELESS COMMUNICATION SYSTEM FOR HIGH-SPEED MOVING OBJECT THAT MOVES ALONG FIXED ROUTE - The present invention relates to a method in which a signal is transmitted between a base station and a terminal in a multi-antenna wireless communication system. The method transmits pre-estimated channel information to the terminal when the terminal moves to a specific position when channel estimation for a specific position is performed. As for the terminal which moves along a fixed route or the route of which can be estimated, the position of the terminal in the near future can be easily detected. Therefore, the transception of channel information can be performed in a more efficient manner in consideration of the above-described special environment. | 05-07-2015 |
20150131561 | METHOD FOR TRANSMITTING AND RECEIVING DATA BY USING AN EXISTING CONNECTION LINK IN A WIRELESS COMMUNICATIONS SYSTEM AND AN APPARATUS FOR THE SAME - The method for enabling a first mobile terminal connected to a first storage terminal to send data to a second storage terminal connected to a second mobile terminal in a wireless communications system includes the steps of: receiving the information of the data to be transmitted from the first storage terminal to the second storage terminal; transmitting the information of the data through a link connected to the second mobile terminal to the second mobile terminal; receiving the information of the second storage terminal from the second mobile terminal; determining whether it is possible to transmit the data through the link based on the information of the data and the information of the second storage terminal; and if it is possible to transmit the data, transmitting the data received from the first storage terminal through the link to the second mobile terminal | 05-14-2015 |
20150139174 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe. | 05-21-2015 |
20150139344 | METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING MULTI-INPUT MULTI-OUTPUT (MIMO) SIGNAL IN WIRELESS COMMUNICATION SYSTEM IN WHICH PLURAL COMMUNICATION SYSTEMS ARE PRESENT - A device for transmitting and receiving multi-input multi-output (MIMO) signal in a wireless communication system in which a plurality of communication systems is present includes a plurality of antenna modules and a recognition module for recognizing at least one of network information or antenna information of a source device. The recognition module compares a measurement result of the plurality of antenna modules with pre-stored information to recognize the network information or antenna information of the source device. | 05-21-2015 |
20150195025 | METHOD AND APPARATUS FOR VIRTUALIZING ANTENNA IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for virtualizing an antenna. A method for communicating using a virtual antenna of a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: configuring one or more virtual antennas according to an antenna virtualization pattern that is determined based on information indicating a movement status of the terminal and/or information indicating a communication status of the terminal; and communicating with the base station by using the one or more virtual antennas, wherein one or more physical antennas that are mapped to the one or more virtual antennas can be determined base on the direction of movement of the terminal. | 07-09-2015 |
20150200722 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting an uplink signal in a wireless communication system are disclosed. A transmission apparatus for receiving an uplink (UL) signal from a user equipment (UE) and transmitting the received UL signal to a base station (BS) in a wireless communication system includes: a plurality of reception antennas configured to receive UL signals from the UE; a radio frequency (RF) repeater configured to amplify and map the received UL signals to at least one transmission antenna; and a plurality of transmission antennas configured to transmit the amplified UL signals to the BS, wherein the RF repeater is configured to select M received UL signals from among a plurality of received UL signals which are received in the plurality of reception antennas, and map the M received UL signals to N transmission antennas from among the plurality of transmission antennas, and the number of the reception antennas (N | 07-16-2015 |
20150206190 | METHOD FOR SEARCHING FOR OR ADVERTISING SERVICE IN DIRECT COMMUNICATION SYSTEM AND DEVICE FOR SAME - The present invention relates to a wireless communication system, and a method for searching for or advertising a service and a device for the same. A method for searching for a service, according to one embodiment of the present invention, can comprise: transmitting a probe request frame to search for a device supporting a predetermined service desired by a first wireless device; receiving a probe response frame from a second wireless device supporting the predetermined service; transmitting, by the first wireless device, a service search request frame including a service name of the predetermined service to the second wireless device; and receiving a service search response frame from the second wireless device, wherein the service search response frame can include service status information indicating whether the predetermined service is available on the second wireless device. | 07-23-2015 |
20150230102 | METHOD AND APPARATUS FOR VIRTUALIZING ANTENNA IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for virtualizing an antenna. A method for reconfiguring an antenna of a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: the terminal transmitting an antenna reconfiguration request to a base station; the terminal receiving from the base station information indicating authorization of the antenna reconfiguration request; the terminal transmitting antenna reconfiguration information to the base station when the information indicating authorization indicates the authorization of the antenna reconfiguration request; and the terminal receiving from the base station information confirming the completion of reconfiguration. | 08-13-2015 |
20150245393 | METHOD FOR PEER TO PEER GROUP FORMATION IN DIRECT COMMUNICATION SYSTEM AND DEVICE THEREFOR - The present invention relates to a wireless communication system, and a method for peer to peer (P2P) group formation is disclosed. To this end, the method for P2P group formation may include transmitting, from a first wireless device to a second wireless device, a provision discovery request frame including connection capabilities of the first wireless device, and receiving, at the first wireless device, from the second wireless device, a provision discovery response frame including connection capabilities of the second wireless device. Here, the connection capabilities may include indicating at least one of: New in order to initiate a new group, Group Owner in order to become a group owner, and Client in order to become a client; and the first wireless device determines the group owner of a P2P group on the basis of the first connection capability and the second connection capability. | 08-27-2015 |
20150296416 | WI-FI DIRECT SERVICE METHOD USING NFC AND DEVICE THEREFOR - The present invention relates to a wireless communication system and more particularly, to a method for performing connection setting for Wi-Fi direct services communication and a device therefor, the method comprising a step of performing device discovery between two devices through an NFC touch. | 10-15-2015 |
20150334695 | METHOD FOR TRANSMITTING AN SRS-TRIGGERING-BASED SRS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator. | 11-19-2015 |
20150373491 | METHOD FOR MEASURING LOCATION OF TERMINAL IN WIRELESS NETWORK AND DEVICE THEREFOR - A method for measuring, by a terminal, the location of a terminal in a wireless network according to the present invention includes the steps of: determining based on a received signal whether the number of access points (APs) that transmit the signal is three or more; storing location information on a first AP obtained based on the received signal and distance information between the terminal and the first AP at a point receiving the signal if the number of the APs is less than three; measuring a travel distance and a travel direction according to the movement of the terminal from the point receiving the signal; obtaining, based on the signals received from a second and a third AP, location information on the second and third APs and distance information between the terminal and each of the second and third APs at the current point, if it is determined that the number of the APs that transmit signals from the current point according to the movement to the terminal is three or more; and calculating the location of the current point of the terminal based on the distance information between the terminal and each of the second and third APs at the current point, distance information between the terminal and the first AP, and the measured travel distance and the measured travel direction. | 12-24-2015 |