Patent application number | Description | Published |
20100067467 | METHOD OF RANDOM ACCESS IN A WIRELESS SYSTEM - A random access method in a wireless communication system is disclosed. The present invention includes transmitting a bandwidth request indicator and a quick access message from a mobile station to a base station and starting a timer having a timer value determined according to an acknowledgement from the base station. | 03-18-2010 |
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 |
20100322229 | METHOD FOR ALLOCATING DYNAMIC TRANSMIT TIME INTERVAL - A method for allocating various transmit time intervals (TTIs) if a sub-frame structure is used, in a radio access system is provided. A transmitter transmits a super frame header including TTI information of a sub-frame included in a super frame to a receiver and transmits a sub-map including resource allocation information to the receiver, thereby dynamically allocating the TTI. Since the TTI information may not be received via the sub-map in every sub-frame, it is possible to prevent waste of a radio resource. | 12-23-2010 |
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 |
20110009143 | METHOD FOR ALLOCATING CONTROL CHANNELS - A frame structure used in a wireless access system and a method for allocating uplink control channels are provided. The method transmits a super-MAP including information regarding a control channel allocation method and control channel allocation information to a receiving end and receives a control signal through an uplink subframe indicated by the control channel allocation information using the control channel allocation method. Thus, the transmitting end can correctly allocate a control channel for each downlink burst. | 01-13-2011 |
20110026475 | METHOD FOR PERFORMING CARRIER MANAGEMENT PROCEDURE IN A MULTI-CARRIER SUPPORTED WIDEBAND WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME - A method and apparatus for performing carrier management in a broadband wireless communication system supporting multiple carriers are disclosed. The method for a mobile station to perform carrier management procedure with a base station supporting multiple carriers includes receiving a carrier management command message from the base station, the carrier management command message including an action code for carrier management and a polling bit in a MAC Control Extended Header (MCEH) indicating whether an acknowledgement message is required, transmitting the acknowledgement message in response to the carrier management command message to the base station when the carrier management command message is successfully received and the polling bit is set to 1, and transmitting a carrier management indication message corresponding to the action code included in the carrier management command message to the base station. | 02-03-2011 |
20110051629 | METHOD FOR TRANSMITTING FRAME IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION - A method of transmitting a frame of a relay station (RS) in a wireless communication system employing the RS is provided. The method includes: receiving frame configuration information on an RS frame from a base station (BS); configuring a frame including a downlink (DL) access zone for transmitting a signal to a relay user equipment (UE), a DL receive zone for receiving a signal from the BS, an uplink (UL) access zone for receiving a signal from the relay UE connected to the RS, a UL transmit zone for transmitting a signal to the BS, and a transition gap; and transmitting a signal in at least one of the UL access zone and the UL transmit zone, wherein the transition gap is a switching time between a transmission operation and a reception operation of the RS and is included in at least one of the DL access zone and the UL transmit zone. | 03-03-2011 |
20110096752 | HANDOVER SUPPORT METHOD USING DEDICATED RANGING CODE - The present invention discloses a variety of methods of supporting handover in a wireless access system. A handover support method according to an embodiment of the present invention includes the steps of: transmitting a handover request message to a first base station (serving base station); receiving a handover response message (UL grant or UL-MAP message) containing authentication information (M) from a second base station (target base station); deriving a dedicated code index (DCI) for instructing a dedicated ranging code by using the authentication information (M); transmitting the dedicated ranging code to the second base station on a non-contention basis; and receiving a ranging response message as a response for the dedicated ranging code. | 04-28-2011 |
20110164586 | METHOD AND APPARATUS FOR TRANSMISSION AND RECEPTION OF DATA USING A COMPACT HEADER - The present invention relates to compact header structures of various forms used in wireless access systems as well as a method and apparatus for the transmission and reception of data using such headers. The method for receiving data wherein the mobile terminal uses the Persistent Allocation (PA) mode in one of the embodiments of the present invention comprises the step of receiving a Downlink Persistent Allocation MAP Information Element (DL PA MAP IE) from the base station, which contains information relating to the resource region allocated for persistent allocation in the downlink, and the step of receiving the downlink data containing a Compact Medium access control Header (CMH) via said resource region revealed by said information. At this stage, the CMH can contain an indicator that indicates whether the downlink data contains an extended header, and a length field indicating the length of the data payload. | 07-07-2011 |
20140362782 | CONFIGURING FREQUENCY BANDS TO BE SCANNED IN A MULTIPLE-FREQUENCY-BAND WIRELESS LAN - Provided is a communication method implemented by a mobile device in a wireless network in which a plurality of frequency bands is available, wherein a first wireless device and a second wireless device in the wireless network are configured to use a first one and a second one of the plurality of frequency bands, respectively, to provide wireless connections. The method includes: while the mobile device is connected to the second wireless device, receiving a frame which includes information indicating that the first wireless device is configured to use the first frequency band to provide a wireless connection, the frame being transmitted from the first wireless device in the second frequency band and received through a scanning operation performed by the mobile device only on the second frequency band; and allowing a subsequent scanning operation of the mobile device to be performed only on the first frequency band. | 12-11-2014 |
20150071275 | TECHNIQUES FOR REGION-BASED SCANNING OF DIFFERENT FREQUENCY BANDS FOR USE IN A WIRELESS LAN - A communication method implemented in a mobile device is provided. The communication method includes limiting a frequency band on which the mobile device performs a scanning operation to a first frequency band used for a wireless connection of the mobile device; determining whether it is necessary to scan a second frequency band during a subsequent scanning operation of the mobile device; and in response to determining that it is necessary to scan the second frequency band, allowing the subsequent scanning operation to be performed on a plurality of frequency bands including the first and second frequency bands. | 03-12-2015 |