Patent application number | Description | Published |
20100309849 | METHOD OF LOW DUTY MODE OPERATION FOR FEMTO BASE STATION - A method of an efficient low duty mode (LDM) operation for a femto base station is disclosed. The method of a low duty mode (LDM) operation for a femto base station comprises operating at an available interval of a first length according to a default LDM pattern; and operating at an unavailable interval of a second length according to the default LDM pattern, wherein the available interval begins with a frame including a first preamble, the first preamble including information of carrier configuration and system bandwidth. | 12-09-2010 |
20110002303 | RANGING BY MOBILE STATION IN FEMTO SYSTEM - A ranging method in a mobile station of a femto system is disclosed. According to the present invention, a femto base station enables non-synchronized ranging channel (NS-RCH) information to be carried on S-SFH SP | 01-06-2011 |
20110026419 | METHOD AND APPARATUS FOR CONTROLLING UPLINK POWER IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling uplink transmit power in a wireless communication system are disclosed. The method includes determining an uplink transmit power for each of the plurality of transmission channels, and sequentially allocating the determined uplink transmit powers to the transmission channels in a descending order of predetermined priority levels of the transmission channels, within a maximum available transmit power of the user equipment. The priority levels of the transmission channels are predetermined so that control channels, a sounding channel, a data channel, and a bandwidth request channel have priority levels in a descending order. | 02-03-2011 |
20110098076 | METHOD AND APPARATUS FOR CONTROLLING UPLINK POWER IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for controlling uplink power in a wireless communication system are disclosed. The uplink power controlling method includes receiving target Signal-to-Interference plus Noise Ratio (SINR) parameters and an uplink noise and interference level from a base station, determining an uplink power based on a target SINR and an estimated average power level of noise and interference of a user equipment, the target SINR being determined using the target SINR parameters and the estimated average power level of noise and interference of the user equipment being calculated using the uplink noise and interference level, and receiving at least one of selectively transmitted first and second offsets from the base station and adjusting the uplink power based on the received at least one of the first and second offsets. | 04-28-2011 |
20120099532 | METHOD FOR CONSTRUCTING RACH PREAMBLE AND METHOD FOR TRANSMITTING RACH SIGNAL - A wireless communication system is disclosed. A method for constructing a RACH preamble according to a cell radius of a base station (BS) irrespective of a guard time (GT) and a method for allocating the RACH preamble are disclosed. A method for constructing a preamble of a random access channel (RACH) includes acquiring time-length information of a predetermined cyclic prefix (CP) for each cell radius of a base station (BS), acquiring sequence time-length information of a single sequence or a repeated sequence, and constructing the preamble using the predetermined CP time-length information and the sequence time-length information, irrespective of a time length of a guard time (GT). | 04-26-2012 |
20120177145 | SEQUENCE-GENERATING METHOD, AND APPARATUS FOR SAME - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for enabling a transmitter to transmit a sequence in a wireless communication system, and to an apparatus for the same. A sequence-transmitting method comprises the steps of: performing at least one of a complex conjugate operation and a reverse operation on a first sequence to generate a second sequence; mapping the second sequence to a plurality of subcarriers in an Orthogonal Frequency Division Multiple Access (OFDMA) symbol; and transmitting the OFDMA symbol to a receiver. The invention also relates to an apparatus for the sequence-generating method. | 07-12-2012 |
Patent application number | Description | Published |
20100296429 | Method for Obtaining Synchronization Signal In Wireless Communication System - A method for obtaining a synchronization signal in a wireless communication system includes dividing a full frequency band into a synchronization band for transmission of the synchronization signal and a usual band for transmission of multicast broadcast multimedia service (MBMS) data, and searching for a primary synchronization signal (PSS) for a dedicated MBMS in the synchronization band, and detecting the PSS for the dedicated MBMS through the synchronization band. | 11-25-2010 |
20120250560 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK INFORMATION IN A WIRELESS COMMUNICATION SYSTEM CONTAINING A RELAY STATION - Provided are a method and apparatus for transmitting feedback information in a wireless communication system containing a relay station. A subband is divided by a plurality of partitions, and the relay station measures feedback information for each of the partitions, and transmits feedback information measured for each of the partitions cyclically at a predetermined interval. Each partition can be a physical resource unit (PRU), and one PRU contains 18 subcarriers. Feedback information for each partition can be cyclically transmitted in the order fixed in the subband. | 10-04-2012 |
20120320860 | MULTICARRIER BASED COMMUNICATION METHOD AND DEVICE - Provided are a multicarrier based communication method and device. A mobile station activates a first carrier, and activates a second carrier adjacent to the first carrier. Defined within the first carrier there is a first frame comprising a legacy UL (uplink) region and an AAI (Advanced Air Interface) UL region; defined within the second carrier there is a second frame comprising an AAI UL region in the first frame occupy frequencies that differ from each other; and guard subcarriers between the AAI UL region of the first frame and the AAI UL region of the second frame are not used for data transmission. | 12-20-2012 |
20130070623 | METHOD AND APPARATUS FOR ALLOCATING A SOUNDING CHANNEL IN A WIRELESS COMMUNICATION SYSTEM - There are provided a method and apparatus for allocating a sounding channel in a wireless communication system. A base station transmits a first sounding channel allocation data to allocate a first sounding channel for a first system to a first zone, and transmits a second sounding channel allocation data to allocate a second sounding channel for a second system other than the first system to a second zone. The first zone and the second zone are multiplexed by an FDM (Frequency Division Multiplexing) method, and the first sounding channel and the second sounding channel are allocated to a same OFDMA (Orthogonal Frequency Division Multiple Access) symbol. A channel response can be estimated accurately when a terminal for IEEE (Institute of Electrical and Electronics Engineers) 802.16m system and a terminal for IEEE 802.16e system coexist in a legacy support mode. | 03-21-2013 |
Patent application number | Description | Published |
20150131608 | STATION AND METHOD OF SETTING CONNECTION THE ACCESS POINT AND THE STATION - A method for setting connection between an access point and a station is provided. The method includes transmitting, by the access point, a communication setup message to one or more stations; and implementing, by the access point, connection setup according to a connection request by the station having received the communication setup message, wherein the communication setup message comprises information about a connection priority requirement by a plurality of network interface card modules, which are included in the access point, using different frequency bands. | 05-14-2015 |
20150131625 | STATION AND METHOD OF SETTING CONNECTION THE ACCESS POINT AND THE STATION - A method for setting connection between an access point and a station is provided. A method includes transmitting, by a station management entity, to a MAC layer management entity included in the station, information about a reception condition for a communication setup message transmitted by the access point and information about a reporting timing of the communication setup message by the MAC layer management entity to the station management entity when the MAC layer management entity receives the communication setup message, and adjusting, by the MAC layer management entity, a transmission timing of the communication setup message to the station management entity according to information about a connection priority requirement included in the communication setup message received by the MAC layer management entity from the access point, and the information about the reporting timing. | 05-14-2015 |