Patent application number | Description | Published |
20120300666 | COORDINATED COMMUNICATION METHOD USING MULTIPLE TERMINALS - A method of performing coordinated communication by a relay station is provided. The method includes: receiving a signal from a terminal; measuring channel state information (CSI) indicating a state of a channel which receives the signal; comparing the CSI with a predetermined threshold to determine whether to decode the received signal; and if it is determined to decode the received signal, removing noise by decoding the received signal, and then performing decode and forward (DAF) in which the signal is re-encoded and transmitted to a base station, and if it is determined not to decode the received signal, performing amplify and forward (AAF) in which the received signal is amplified and forwarded to the base station. The CSI may be at least one of a frame error rate (FER), a bit error rate (BER), a signal to noise ratio (SNR), and a signal to interference plus noise ratio (SINR). Accordingly, a time delay consumed for channel decoding in hybrid DAF coordinated communication can be decreased, data transmission and resource usage can be more effectively achieved in coordinated communication using multiple terminals, and unnecessary power consumption can be decreased. | 11-29-2012 |
20120319874 | METHOD FOR GENERATING CODEWORDS - Provided is a method for generating codewords. The method comprises the following steps: receiving an information bit; generating a generating matrix in which a size of a column is identical with a length of the information bit, a size of a row is 24 rows, and values of symbols that are elements of the matrix are 0 or 1; modifying the generating matrix by dividing the generated generating matrix into an upper group and a lower group having an identical size and replacing rows so that the number of symbols having a value of 1 in the upper group is identical with the number of symbols having a value of 1 in the lower group; and obtaining inner products from the information bit and each row of the modified generating matrix and generating codewords from remainders obtained by dividing the inner products by 2. | 12-20-2012 |
20120320951 | METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and a device for transmitting uplink control information (UCI) by a terminal in a wireless communication system. The UCI transmission method comprises the steps of: generating an encoding information bit stream by performing channel coding for a UCI bit stream; generating complex modulation symbols by performing modulation for the generated encoding information bit stream; spreading the complex modulation symbols in block-wise on the basis of an orthogonal sequence; and transmitting the spread complex modulation symbols to a base station. The encoding information bit stream is generated by a channel coding for circularly repeating the UCI bit stream. | 12-20-2012 |
20120327885 | CONTROL INFORMATION TRANSMISSION METHOD AND A DEVICE THEREFOR - The present invention relates to a wireless communication system supporting carrier aggregation. More specifically, the present invention relates to a method in which a terminal transmits ACK/NACK and to a device therefor; and relates to a method comprising the steps of: receiving one or more items of data simultaneously on a plurality of carriers; generating an ACK/NACK payload comprising one or more items of ACK/NACK information about the one or more items of data; and transmitting the ACK/NACK payload, wherein the position of each item of ACK/NACK information in the ACK/NACK payload corresponds to respective carriers, and the present invention relates to a device for the method. | 12-27-2012 |
20120328042 | METHOD AND APPARATUS FOR TRANSMITTING SIGNAL USING REPETITION CODING IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting information data using a repetition coding scheme in a wireless communication system are disclosed. The transmission method includes generating a codeword of a predetermined size N | 12-27-2012 |
20130016688 | METHOD AND APPARATUS FOR TRANSMITTING ACK/NACK SIGNALS - The present invention relates to a method and apparatus in which a base station transmits a physical ARQ channel (PHICH) in a wireless communication system. More particularly, the present invention relates to a method and apparatus for transmitting a PHICH, wherein the method comprises the following steps: generating a plurality of hybrid of ARQ (HARQ) indicators: channel-coding the plurality of HARQ indicators into a single HARQ codeword; and transmitting the HARQ codeword via the PHICH, wherein the value of a portion of the HARQ codeword indicates individual value of each of HARQ indicators, and the value of the rest of the HARQ codeword indicators a value of joint operation of the plurality of HARQ indicators. | 01-17-2013 |
20130021960 | METHOD AND DEVICE FOR PERFORMING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM - One suggested specific embodiment of the present invention relates to a communication method and device for improved performance. For example, a method for requesting information related to energy (or power) consumption of a terminal and receiving a report of related information from the terminal, and a mobile terminal may be provided. When the method and terminal are used, energy that the terminal consumes may be efficiently controlled. | 01-24-2013 |
20130022012 | METHOD FOR TRANSCEIVING CONTENTION-BASED UPLINK CHANNEL SIGNAL - The present invention relates to methods for transceiving a contention-based uplink channel signal, and apparatuses for supporting the same. According to one embodiment of the present invention, a method for transmitting first uplink data through a contention-based uplink channel comprises the steps of: receiving, by a terminal, an uplink grant (CB UL Grant) message from a base station (BS), the uplink grant message including allocation information on the contention-based uplink channel; and transmitting the first uplink data, which is distinguished from second uplink data transmitted through the contention-based uplink channel by another terminal, through the contention-based uplink channel to the base station. | 01-24-2013 |
20130028219 | UPLINK SIGNAL TRANSMISSION METHOD VIA A COMPETITION-BASED UPLINK CHANNEL - Embodiments of the present invention provide methods for providing competition uplink channels while minimizing the frequency of blind decoding operations of a terminal, and devices of supporting the methods. An uplink signal transmission method via a competition-based uplink (CB UL) channel according to one embodiment of the present invention comprises: receiving the configuration information on the CB UL channel from a base station; receiving resource information from the base station, the resource information containing at last one of the following: information on usage time of the CB UL channel, information on activation and deactivation of the CB UL channel and information on cancellation; and inspecting the validity of the resource information. If the resource information is not valid, the resource information is individually allocated to each subframe; if the resource information is valid, the resource information can be periodically and continuously allocated. | 01-31-2013 |
20130029675 | METHOD AND APPARATUS FOR DIRECT COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for direction communications in a wireless communication system. In the direct communication support method of a wireless communication system, according to one embodiment of the present invention, when a base station receives a direct communication request message from a first terminal to request a direct communication with a second terminal without going through the base station, the base station then allocates resources to be used for the direct communication and transmits resource allocation information to the first and second terminals. | 01-31-2013 |
20130029713 | COMMUNICATION METHOD BETWEEN TERMINALS, AND TERMINAL - According to the present invention, a source MS, determining initiation of M2M communication or receiving a request for initiating M2M communication from a BS, receives a reference signal for channel quality measurement of a neighboring MS, and the channel quality of the source MS and the neighboring MS is measured by using the reference signal; and information representing the channel quality is transmitted to the BS. Or, the neighboring MS receives a reference signal for channel quality measurement transmitted by the source MS, a channel quality of the source MS and the neighboring MS is measured by using the reference signal, and information representing the channel quality is transmitted to the BS. The BS determines a partner MS for M2M communication with the MS on the basis of a channel quality between the source MS and the neighboring MS. | 01-31-2013 |
20130034071 | UPLINK SIGNAL TRANSMISSION METHOD USING CONTENTION-BASED IDENTIFIERS - The present invention discloses various methods and apparatuses for allocating identifiers and resources associated with a contention-based uplink channel and using the identifiers and resources. An uplink (UL) signal transmission method using a contention-based identifier (CB identifier) according to one embodiment of the present invention comprises a step in which user equipment receives, from a base station, a first message containing a CD identifier (CB-RNTI); a step in which the user equipment receives, from the base station, a second message containing information on the allocation of the contention-based uplink (CB UL) channel associated with the CB identifier; and a step in which the user equipment transmits an UL signal to the base station via the CB UL channel. | 02-07-2013 |
20130039398 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink control information in a wireless communication system. A method for transmitting uplink control information in a wireless communication system according to one embodiment of the present invention comprises a step of repetition coding information bit of N-bit to generate an encoded bit; and a step of transmitting the encoded bit via a physical uplink shared channel, wherein bit inversion can be applied to the bit obtained by repeating the information bit of N-bit, on the basis of the number 1 contained in the information bit of N-bit. | 02-14-2013 |
20140355555 | METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and a device for transmitting uplink control information (UCI) by a terminal in a wireless communication system. The UCI transmission method comprises the steps of: generating an encoding information bit stream by performing channel coding for a UCI bit stream; generating complex modulation symbols by performing modulation for the generated encoding information bit stream; spreading the complex modulation symbols in block-wise on the basis of an orthogonal sequence; and transmitting the spread complex modulation symbols to a base station. The encoding information bit stream is generated by a channel coding for circularly repeating the UCI bit stream. | 12-04-2014 |