Abstract:
A method and an apparatus for forming a beam in an antenna array are disclosed. The method for forming a beam in an antenna array comprises the steps of: forming a first beam pattern in a first band on the basis of a single-band antenna aggregation and a multi-band antenna aggregation; and forming other beam patterns in bands other than the first band on the basis of the multi-band antenna aggregation, wherein the single-band antenna aggregation includes a plurality of single-band antennas which operate only in the first band, the multi-band antenna aggregation includes multi-band antennas which operate in a plurality of bands including the first band, and the antenna array may be arranged in a two-dimensional plane such that distances between the plurality of single-band antennas and the plurality of multi-band antennas are constant.
Abstract:
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 (Nrx,REP) is higher than the number of the transmission antennas (Ntx,REP), and N is the number of the transmission antennas which is used to transmit the M received UL signals.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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
Abstract:
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.
Abstract:
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.
Abstract:
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving a downlink control channel. According to one embodiment of the present invention, method in which a base station transmits downlink control information in a wireless communication system comprises: a step for determining an allocatable resource region for an enhanced physical downlink control channel (E-PDCCH) of a local allocation system; a step for allocating an E-PDCCH to the determined allocatable resource region for the E-PDCCH; and a step for transmitting the downlink control information on the allocated E-PDCCH. The allocatable resource region for the E-PDCCH can be set as a group of partial resource regions in each of a plurality of partitions when a downlink system bandwidth contains said plurality of partitions.