Patent application number | Description | Published |
20080214218 | Method for Maximal Ratio Combining of Spatially Filtered Signals and Apparatus Therefor - The present invention relates to a maximum ratio combining method of spatial-filtered received signals and an apparatus using the same. For this purpose the present invention provides a method for receiving signals by using a plurality of antennas that form a linear array antenna, multiplying a plurality of weight vectors by the received signals, summing the multiplication results for each weight vector, and combining the summing results by using maximum ratio combining. According to the present invention, signals are dividedly received by applying spatial filtering for a receiving direction of each signal and performance can be improved by combining the received signals by using maximum ratio combining. In addition, performance of an MRC-rake and a beam forming gain can be simultaneously acquired according to the present invention. | 09-04-2008 |
20080310449 | Method and Apparatus For Upper Level Protocol Message - Upper level protocol message transmitting method and apparatus are provided based on a new management message to be used in a portable Internet system. When a base station receives the upper level protocol message to be broadcast, it includes the same in the management message and transmits the included message to all the mobile terminals of a cell, and thus, the total number of the transmissions is decreased, thereby increasing a wireless efficiency. | 12-18-2008 |
20090147740 | HARQ AND BANDWIDTH REQUEST METHOD IN WIRELESS ACCESS SYSTEM - The present invention relates to a resource reallocation and bandwidth request method in a wireless access system. The present invention uses the synchronous HARQ mode together with the asynchronous HARQ mode according to scheduling by the HARQ retransmission burst. Therefore, a resource allocation overhead for a retransmission burst is reduced during the synchronous HARQ mode operation. Also, an uplink transmission delay is reduced, and efficiency of the radio resource is maximized. | 06-11-2009 |
20090164788 | EFFICIENT GENERATION METHOD OF AUTHORIZATION KEY FOR MOBILE COMMUNICATION - The present invention relates to a method of generating an authorization key for a wireless communication system. In the wireless communication system, when an authorization key is generated after authentication between a subscriber station and base station is successfully performed, the authorization key is generated using a value indicating the number of generation times of the authorization key. Subsequently, the subscriber station and the base station confirm through a predetermined procedure whether or not they share the same authorization key and the same number of generation times of the authorization key. According to such a method of generating an authorization key, an authentication function for messages to be transmitted and received between the subscriber station and the base station can be efficiently supported. Further, replay attacks by malignant users can be powerfully protected against. | 06-25-2009 |
20090190560 | UPLINK SYNCHRONIZATION REQUEST METHOD IN MOBILE COMMUNICATION SYSTEM, CDMA ALLOCATION IE THEREOF, AND APPARATUS USING THE SAME - The present invention relates to an uplink synchronization request method in a mobile communication system, a CDMA allocation information element structure thereof, and an apparatus using the same. For this purpose the uplink synchronization request method includes: when up-link traffic is generated, determining whether an uplink synchronization error occurs; when the uplink synchronization error occurs, calculating a timing adjustment value; and transmitting a bandwidth request code including the calculated timing adjustment value to a base station and performing a band-width request. According to the present invention, the PSS compares a reference adjustment value and an arrival time of a downlink preamble to calculate uplink synchronization timing and synchronize an uplink of the PSS that requests bandwidth allocation through a bandwidth request ranging process to thereby maximize resource use efficiency in the uplink synchronization. | 07-30-2009 |
20090196192 | POWER CONTROL AND SCHEDULING METHOD IN CONSIDERATION OF INTERFERENCE LEVELS BETWEEN NEIGHBOR SECTORS IN COMMUNICATION SYSTEM - In order to perform uplink scheduling for a terminal, a base station receives information on uplink interference due to the terminal from neighbor base stations, transmits the information on the uplink interference to the terminal, receives information on transmission power of a feedback channel from the terminal through the feedback channel, compares the transmission power of the feedback channel and reception power of the feedback channel so as to estimate transmission loss, and performs uplink scheduling for the terminal by reflecting the transmission loss. | 08-06-2009 |
20090196254 | METHOD OF PERFORMING HANDOVER IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a handover method of a mobile station in a wireless communication system, and a base station and a mobile station for the same. A list of neighboring base stations that can accept a handover of a mobile station is shared by the mobile station and a serving base station before the mobile station performs the handover so as to reduce handover delay time in a high speed environment through addition, the active base station set managed by the mobile station and the serving base station can be managed with consideration of radio signal quality and resource state of each of the neighboring base stations included in the active base station set, and thus when the mobile station attempts a network re-entry process to a target base station that is not ready for the handover of the mobile station due to a loss of a handover control message, a handover failure due to a lack of radio resources can be prevented, thereby increasing a handover success rate. | 08-06-2009 |
20090239546 | METHOD AND APPARATUS FOR ALLOCATING RADIO RESOURCE IN COMMUNICATION SYSTEM - To transmit resource allocation information on a plurality of radio resources to a terminal, a resource allocation device expresses a radio resource that is differently allocated from before the resource allocation information is transmitted among the plurality of radio resources in a radio resource pattern sequence, generates resource allocation information on the plurality of radio resources based on the radio resource pattern sequence, and transmits the radio resource pattern sequence and the resource allocation information, or a compressed pattern sequence corresponding to the radio resource pattern sequence and the resource allocation information, to the terminal through a frame. | 09-24-2009 |
20090240944 | GENERATION METHOD AND UPDATE METHOD OF AUTHORIZATION KEY FOR MOBILE COMMUNICATION - The present invention relates to an authorization key generating method and an authorization key updating method in a mobile communication system. A terminal and a base station generate an authorization key by using a terminal random value and a base station random value that are exchanged in an authorization key generating procedure as input data. In addition, a lifetime of an authorization key is established to be shorter than a lifetime of a root key, and the authorization key is updated with an updating period that is shorter than that of the root period. | 09-24-2009 |
20090252089 | PACKET RECEIVING AND TRANSMITTING METHOD - An embodiment of the invention provides a method of receiving packets from a transmitting station at a receiving station in a mobile communication system. The packet receiving method includes receiving a radio resource including a data packet and a packet indicator related to the data packet, identifying the packet indicator, and processing the data packet according to the content of the packet indicator. Another embodiment of the invention provides a method of transmitting packets from a transmitting station to a receiving station in a mobile communication system. The packet transmitting method includes receiving a response signal of a first data packet from the receiving station, allocating a second data packet to a radio resource according to the response signal, allocating a packet indicator related to the second data packet to the radio resource, and transmitting the second data packet and the packet indicator to the receiving station. | 10-08-2009 |
20090290546 | METHOD OF ALLOCATING TERMINAL TO GROUP IN BASE STATION OF COMMUNICATION SYSTEM AND METHOD OF GENERATING MAP - In order to allocate a plurality of terminals to a group in a base station of a communication system, channel state information of each of the terminals is received, a group to which the terminal belongs is determined according to the channel state information with respect to the terminal, and a map including information on group burst allocation and information on sub-burst allocation with respect to a group identifier corresponding to the group is transmitted to the terminal. | 11-26-2009 |
20090325605 | METHOD FOR LOCATION DETERMINATING - A method for measuring a position includes: allocating a first ranging code and a first ranging region for a mobile station; receiving a second ranging code and allocation information on a second ranging region of the mobile station from a neighboring base station; transmitting the first ranging code and the second ranging code to the mobile station; receiving the first ranging code from the mobile station in the first ranging region; calculating a received timing adjustment value of the first ranging code; receiving a received timing adjustment value of the second ranging code from the neighboring base station; and measuring the position of the mobile station according to the received timing adjustment value of the first ranging code and the received timing adjustment value of the second ranging code. Therefore, the cost and efficiency can be improved by measuring the position of the mobile station by changing the ranging method used in the conventional system. | 12-31-2009 |
20100008439 | SYSTEM AND METHOD FOR QUASI-ORTHOGONAL SPACE-TIME BLOCK CODING - The present invention relates to a quasi-orthogonal space-time block coding system and method. The system does not become particularly complicated since the encoding rate is given as 1 and it is possible to decode the encoded signal by using a simple linear algorithm, and system performance is increased since there is no interference component of an adjacent signal in the estimate | 01-14-2010 |
20100009688 | METHOD OF OPERATING RANDOM ACCESS CHANNEL IN MOBILE COMMUNICATION SYSTEM - A random access channel operating method in a mobile communication system is provided. The random access channel operating method includes: (a) selecting a transmission mode according to a load of random access channel and performing transmission to a mobile terminal; (b) receiving a message having a format corresponding to the selected transmission mode from the mobile terminal; (c) determining whether or not a preamble or data is included in the message received in (b) receiving of the message; and (d) if the data is determined to be included in the (c) determining, transmitting a response message for data reception to the mobile terminal. Accordingly, use efficiency of a random access channel can be increased by measuring a system load of the random access channel in a base station and changing a transmission format of a burst transmitted through the random access channel according to the measured load level. | 01-14-2010 |
20100020758 | RADIO RESOURCE REALLOCATING METHOD FOR CIRCUIT MODE - The present invention relates to a radio resource reallocation method based on the circuit mode. In order to efficiently use the radio resource in the packet-based data transmission system, a circuit mode radio resource is reallocated based on a rearrangement information element and a rearrangement counter information element by using the circuit mode. Accordingly, an unused region of the discontinuous radio resource that can be generated by resource de-allocation and resource change can be eliminated, and a resource allocation mismatch that can be generated by a MAP receiving error can be solved. | 01-28-2010 |
20100049858 | INITIAL ACCESS METHOD FOR BROADBAND WIRELESS ACCESS SYSTEM - Provided is an initial access method for a broadband wireless access system. The initial access method is used between a portable subscriber station (PSS) and a radio access station (RAS) in the broadband wireless access system and includes an authentication operation and a default transport connection setting operation. In the initial access method, default information, which is required to register the PSS and to set default transport connection, is stored in an authentication authorization accounting (AAA) server, the default information is then transmitted to the RAS connected to the PSS in the authentication operation by the AAA server, and when the PSS is registered and the default transport connection is set, a message composed of parameters, which are required to register the PSS containing the default information and to set the default transport connection, is then transmitted to the PSS by the RAS. Accordingly, a simplified initial access procedure is achieved. | 02-25-2010 |
20100054186 | INITIAL ACCESS CONTROL METHOD BETWEEN PERSONAL SUBSCRIBER STATION AND RADIO ACCESS STATION IN MOBILE COMMUNICATION SYSTEM - The present invention relates to an initial access based control method between a personal subscriber station and a radio access station in a mobile communication system. The present invention includes: a) selecting an initial access method corresponding to a first field value of a first parameter included in a first downlink channel descript message received from the radio access station; b) generating a first ranging request message corresponding to the initial access method; and c) transmitting the first ranging request message to the radio access station. The present invention guarantees mutual compatibility with the existing broadband wireless access system and realizes various initial access methods between the subscriber station and the radio access station. | 03-04-2010 |
20100061339 | HANDOVER METHOD WITH MOBILE RELAY STATION - There is provided a handover method by a mobile relay station (MRS) or base station (BS) so as to effectively perform a handover of the MRS and mobile stations (MSs) in an environment in which data is communicated through a relay of the MRS. There is also provided a handover method capable of securing backward compatibility of an MS during a handover. There is provided a handover method in which an MRS is considered. It is possible to improve the efficiency of the handover by allowing handovers of the MRS and MSs to which the MRS relays to be initiated by the MRS or BS. It is possible to secure the backward compatibility of the MSs by allowing the MRS to generate and manage a mapping relation between information on communication identifiers (CIDs) of the MSs, which are changed during the handover, and information on previous CIDs of the MSs. | 03-11-2010 |
20100062765 | METHOD AND APPARATUS FOR SCANNING IN MULTI-CARRIER COMMUNICATON SYSTEM - There are provided a method and an apparatus for scanning in a mobile communication system supporting a multi-carrier. For this, the scanning method includes: in a mobile station supporting a multi-carrier including a primary carrier and a secondary carrier, requesting allocation of a scanning interval to a serving base station by using the primary carrier; receiving a response message for designating the scanning interval and a carrier to be used for scanning from the serving base station; and scanning neighbor base stations by using the carrier designated by the response message in the scanning interval. Transaction data is continuously transmitted and received through the remaining carriers while scanning the neighbor base stations by using the primary carrier or the secondary carrier without interruption. | 03-11-2010 |
20100075663 | METHOD FOR REPORTING A CHANNEL QUALITY INFORMATION IN WIRELESS COMMUNICATION SYSTEM - Provided is a method of reporting channel quality information in a wireless communication system. A relay station (RS) measures an uplink signal of a mobile station (MS) to obtain a measurement result, and transmits a report message including the measurement result and identification information of the MS to a base station (BS). | 03-25-2010 |
20100091797 | APPARATUS FOR RECONSTRUCTING CONTROL MESSAGE, APPARATUS FOR RESTORING CONTROL MESSAGE, METHOD OF RECONSTRUCTING CONTROL MESSAGE, AND METHOD OF RESTORING CONTROL MESSAGE - The present invention relates to an apparatus for reconstructing a control message, an apparatus for restoring a control message, a method of reconstructing a control message, and a method of restoring a control message. To this end, an exemplary embodiment of the present invention provides an apparatus for reconstructing a control message, the apparatus including an index parameter generating section that classifies a plurality of first parameters in a control message according to a predetermined criterion to generate group information and generates one or more index parameters corresponding to the group information, and a control message reconstructing section that reconstructs the control message on the basis of the group information and the index parameters. According to the present invention, the size of a control message to be transmitted and received between a base station and a terminal can be reduced, thereby providing more additional services to the terminal through a limited radio resource. | 04-15-2010 |
20100110879 | METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA BROADCAST MULTICAST SERVICE - Provided are a method and an apparatus for providing a multimedia broadcast multicast service. The method for providing a multimedia broadcast multicast service (MBMS) in a base station includes determining the number of terminals receiving the MBMS and determining a unit-cell or multi-cell transmission scheme by comparing predetermined unit-cell and multi-cell thresholds with the determined number of terminals. | 05-06-2010 |
20100111022 | FEMTOCELL BASE STATION APPARATUS AND SELF-CONFIGURING METHOD THEREOF - A self-configuring method of a femtocell base station extracts preambles from signals received from adjacent macrocells and femtocells. Transmission power of the femtocell base station is set using the extracted macrocell preambles. In addition, the preambles of the femtocell base station are selected using the correlation values between the macrocell preambles and the pre-stored femtocell preambles. Moreover, the resources for data transmission of the femtocell base station are allocated considering the adjacent macrocells and the femtocells. | 05-06-2010 |
20100111224 | METHOD FOR TRANSMITTING COMMON FEEDBACK CHANNEL AND TRANCEIVER THEREFOR - Disclosed is a method for generating feedback signal patterns of common feedback channels using cyclic shift in a multiple access system, and a transceiver therefore. A method for generating feedback signal patterns includes generating first transmission symbols by adding a cyclic prefix to transmission symbols of feedback signals, and generating second and subsequent transmission symbols by cyclically shifting the first transmission symbols and then adding the cyclic prefix. | 05-06-2010 |
20100113031 | TERMINAL, METHOD FOR HANDOVER THEREOF, AND SUPPORTING METHOD FOR HANDOVER OF BASE STATION - A method for handover according to the present invention includes: requesting information on femto cells that are accessible by the terminal from a macro base station that manages the macro cells; receiving the femto cell information from the macro base station; and scanning neighboring femto cells based on the femto cell information. | 05-06-2010 |
20100113049 | METHOD AND DEVICE FOR MANAGEMENT OF FEMTO BASE STATION - A method for management of a base station according to the present invention includes: entering a first interval when a terminal is not present in a region of a first cell managed by the base station; receiving an interval switching request when the terminal enters a second cell that is larger than the first cell while including the first cell; and switching into a second interval other than the first interval in accordance with the interval switching request. | 05-06-2010 |
20100144338 | POWER CONTROL AND RESOURCE MANAGEMENT METHOD OF FEMTOCELL BASE STATION IN WIDEBAND WIRELESS ACCESS SYSTEM - Provided is a power control method and resource management method of a femtocell base station in a wideband wireless access system. A macrocell base station receives received signal strength from a femtocell base station in a macrocell of the macrocell base station, compares it with received signal strength reported by a terminal in the macrocell, and when a difference between the two received signal strength is less than a threshold value, it receives received signal strength on a signal received by the terminals in the macrocell from the corresponding femtocell base station. Further, the macrocell base station determines whether the corresponding macrocell terminal is located in the coverage of the femtocell base station based on the reported received signal strength of the femtocell base station, and transmits information for controlling power of the femtocell base station or managing a radio resource to the femtocell base station according to the determination result. | 06-10-2010 |
20100144355 | TERMINAL, METHOD FOR HANDOVER THEREOF AND SUPPORTING METHOD FOR HANDOVER OF BASE STATION - A handover method of a terminal in a macro cell including a plurality of femto cells includes scanning information on a femto base station for managing a femto cell that is near the terminal from among the plurality of femto cells, and reporting information on the femto base station to a macro base station for managing the macro cell. | 06-10-2010 |
20100177740 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK INFORMATION - Disclosed is an apparatus for transmitting feedback information to a base station. The feedback information transmitting apparatus receives channel allocation information, generates a plurality of payloads regarding feedback information, and multiplexes the plurality of payloads in terms of a plurality of classes so as to generate a plurality of multiplexed payloads. Subsequently, the plurality of multiplexed payloads are code multiplexed so as to generate a code division multiplexing symbol, and a channel code is applied to the code division multiplexing symbol. Then, the code division multiplexing signal applied with the channel code is transmitted to a base station through a wireless resource. Accordingly, a feedback channel that is adaptive to a channel condition is configured, such that a wireless resource for a feedback channel can be efficiently used. | 07-15-2010 |
20100189049 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK INFORMATION - Disclosed are methods for transmitting feedback information, comprising receiving channel allocation information (S | 07-29-2010 |
20100208687 | METHOD OF PERFORMING UPLINK SCHEDULING - The present invention is provided to perform uplink scheduling of a mobile station. In order to perform the uplink scheduling of the mobile station located in a service cell, a base station receives a plurality of interference amounts each corresponding to a plurality of frequency bands associated with an uplink in at least one adjacent cell corresponding to the mobile station from the base station of at least one adjacent cell, respectively, and calculates a plurality of interference values each corresponding to the plurality of frequency bands by using the plurality of interference amounts each corresponding to at least one adjacent cell. In addition, the base station generates scheduling control information corresponding to the mobile station by using the plurality of interference values and transmits the scheduling control information to the mobile station. | 08-19-2010 |
20100220691 | METHOD AND APPARATUS FOR TRANSMITTING BROADCASTING INFORMATION - In a method of transmitting broadcasting information, the broadcasting information is classified into fixed broadcasting information for transmitting to a fixed position of a super-frame and variable broadcasting information to be variably transmitted in the form of a broadcasting message. The fixed broadcasting information may be classified into primary broadcasting information having a short cycle and secondary broadcasting information having a long cycle. | 09-02-2010 |
20100232398 | RESOURCE ALLOCATION METHOD, MAP CONFIGURATION METHOD, AND RESOURCE ALLOCATION INFORMATION TRANSMISSION METHOD IN MOBILE COMMUNICATION SYSTEM - When characters are allocated to a keyboard, a plurality of consonants are divided into a plurality of groups according to pronunciation position in the oral cavity, and the groups are allocated to corresponding columns on the keyboard of 3 rows and 10 columns. A plurality of vowels are allocated to the corresponding columns according to the pronunciation position in the oral cavity. In this instance, the consonants and the vowels of which the pronunciation position are near the lips are allocated to the middle area of the area of 3 rows and 10 columns, and the consonants and the vowels of which the pronunciation position are near the vocal chords are allocated to the outer part of the area of 3 rows and 10 columns. The consonants and the vowels are allocated to the corresponding rows of the area of 3 rows and 10 columns according to usage frequency. | 09-16-2010 |
20100246498 | METHOD OF CONSTRUCTING RESOURCE ALLOCATION MAP FOR MOBILE COMMUNICATION SYSTEM - The present invention relates to a method of constructing a resource allocation map in a mobile communication system. In a method of constructing a map in a hierarchial pattern method in a case where a localized resource block (localized RB) and a distributed resource block (distributed RB) need to be simultaneously allocated in regards to a radio resource allocated in a previous frame or reserved with a fixed allocation, a radio resource that is reserved or not used and a radio resource that is newly allocated in a map of a current frame are classified and represented. Then, in regards to a radio resource that is allocated in a current frame, a localized RB and a distributed RB are classified and represented. As for the localized RB, allocation information is represented in an index pattern method, and as for the distributed RB, resource allocation information is represented in a toggle pattern method. | 09-30-2010 |
20100271941 | METHOD OF CHANGING FREQUENCY ASSIGNMENT STATUS IN BROADBAND WIRELESS ACCESS SYSTEM - The present invention relates to a method of changing a frequency assignment (FA) status in an improved broadband wireless access system where terminals and base stations can communicate with each other by using a plurality of FAs. In the present invention, the base station changes the status of one of secondary FA into the status of the pFA in order to adjust a load of the primary FA, and communicates with the terminal through the pFA of which status is changed. For this purpose, the base station transmits a MAP information element (IE), which requests the change of the status of the pFA, to the terminal. The MAP IE includes an action code that requests the change of the status of the pFA, and a bit map representing an FA of which status is to be changed. When a response, which represents the completion of the change of the status of the pFA of the base station, is received from the terminal, the base station changes the status of the pFA and communicates with the pFA of the terminal through a new pFA. The status of a previous pFA between the base station and the terminal is changed into the status of the sFA, and the status of one previous sFA between the base station and the terminal is changed into the status of the pFA, so that communication is performed through new FAs. According to the present invention, since the base station can change the status of a specific terminal and FAs in use according to need, it is possible to adjust loads between the FAs. Further, the base station can change the statuses of the FAs in use while continuously maintaining the access of a specific terminal. | 10-28-2010 |
20100272002 | METHOD FOR TRANSMITTING AND RECEIVING MULTICAST AND BROADCAST SERVICE - A terminal receives a map scheduling interval that is set to be greater than a multicast and broadcast service map transmission cycle by a base station from the base station, and receives a multicast and broadcast service map from the base station according to the received map scheduling interval. | 10-28-2010 |
20100278063 | METHOD FOR CONTROLLING INTERFERENCE - A method for controlling interference between a plurality of neighboring base stations for a terminal by a serving base station of the terminal in a communication system is provided. The method includes receiving interference amount information on a first region of a downlink frame from the terminal, determining an interference amount estimate for the first region based on the received interference amount information, comparing the determined interference amount estimate with an interference amount tolerance for the first region; and transmitting an interference indicator requesting reduction in transmission power for the first region to the plurality of neighboring base stations when the interference amount estimate exceeds the interference amount tolerance. | 11-04-2010 |
20100279700 | RESOURCE ALLOCATION AND POWER CONTROL METHOD - A method for controlling transmission power in a mobile communication system is provided. According to the method, a serving base station arranges a plurality of terminals in ascending order according to Carrier-to-Interference-and-Noise-Ratios (CINRs) based on the CINR measured by the plurality of terminals, classifies the plurality of terminals in one of a first group and a second group according to the order, allocates a subchannel of a data region corresponding to the first group from among a plurality of data regions included in the uplink frame to a terminal classified as the first group, and allocates a subchannel of a data region corresponding to the second group from among the data regions to a terminal classified as the second group. | 11-04-2010 |
20100280890 | METHOD OF BROADCASTING AND RECEIVING NEIGHBORING BASE STATION ADVERTISEMENT MESSAGE IN BROADBAND WIRELESS ACCESS SYSTEM, AND HANDOVER METHOD USING THE SAME - The present invention relates to a method of broadcasting and receiving a neighboring base station advertisement message in a wideband wireless access system and a handover method using the same. In the present invention, a base station broadcasts a neighboring base station advertisement message including information that indicates that frequency overlay is supported in neighboring base stations to terminals. The terminal confirms whether frequency overlay is supported in the neighboring base stations included in the neighboring base station advertisement message, and can perform handover to a frequency overlay supporting base station as a destination base station. According to the present invention, when a non-frequency overlay communication system and a frequency overlay communication system are mixed with each other, it is possible to ensure that a frequency overlay supporting terminal performs handover from a base station of a frequency overlay communication system to a base station of another frequency overlay communication system. | 11-04-2010 |
20100284332 | METHOD FOR TRANSMITTING AND RECEIVING DATA IN MULTI CARRIER WIRELESS ACCESS SYSTEM - There is provided a method in which a base station transmits downlink data in a wireless access system supporting multi-carriers. The method comprising negotiating with a terminal about a sleep mode parameter including information on a sleep window and a listening window, if the terminal is operating in a sleep mode, transmitting information on a carrier used for data transmission among the multi-carriers to the terminal through at least one of a medium access control (MAC) header, a MAC control message, and a control channel and transmitting data to the terminal based on the information during the listening window. Accordingly, waste of radio resources can be prevented by making efficient use of the multi-carriers even though the terminal is operating in the sleep mode. | 11-11-2010 |
20100285831 | METHOD OF PERFORMING HANDOVER IN MULTI CARRIER WIRELESS ACCESS SYSTEM - There is provided a method for handover of a terminal in a wireless access system using multi-carrier operation. The method comprises: receiving a handover command message from a serving base station; and performing network reentry to a target base station based on the handover command message, wherein the handover command message includes information required for handover to the target base station and information on whether the target base station supports handover using multi-carriers. Accordingly, it is possible to efficiently perform the handover in the wireless access system supporting the multi-carriers. | 11-11-2010 |
20100318659 | METHOD FOR ALLOCATING RESOURCE AND RECEIVING DATA - The present invention relates to a resource allocation and data receiving method. A resource allocation message for allocating a resource for an uplink dedicated channel is transmitted to a relay station, a receipt check message on the resource allocation message is received from the relay station, and successful resource allocation is checked. | 12-16-2010 |
20100331018 | TERMINAL, METHOD FOR MANAGING THEREOF, BASE STATION AND METHOD FOR MANAGING THEREOF - A method for managing a terminal operated in an idle state is provided. The method includes entering a femto cell, determining whether a femto base station managing the femto cell has the same paging group as a macro base station managing a macro cell overlapping the femto cell, transmitting a first ranging code triggering a paging enable state to the femto base station if it is determined that the paging group is the same as the determination result, and receiving a paging message from the femto base station. | 12-30-2010 |
20110002253 | METHOD FOR MANAGING POWER SAVING OPERATION IN WIRELESS COMMUNICAITON SYSTEM - In a power saving operation management method in a mobile communication system, a base station receives a sleep mode entering request message from a mobile station desiring to enter the sleep mode, determines a sleep period type and a parameter by analyzing a combination of radio channels between the mobile station and the base station, and transmits a sleep mode entering response message including the sleep period type and the parameter. | 01-06-2011 |
20110013600 | METHOD OF TRANSMITTING DATA FOR REDUCING INTERFERENCE IN HIERARCHICAL CELL STRUCTURE - A method of transmitting data for reducing interference in a hierarchical cell structure including a macro base station (BS) providing multi carriers and a femto BS providing a single carrier includes performing a channel scan within an interfered carrier to acquire channel state information and neighbor femto BS information if interference with the femto BS occurs; transmitting a channel measurement report including the channel state information and the neighbor femto BS information to the macro BS; and transmitting data through a carrier changed by receiving carrier change information from the macro BS. | 01-20-2011 |
20110032873 | METHOD OF TRANSMITTING BROADCAST INFORMATION IN MULTIPLE CARRIER SYSTEM - A method of transmitting broadcast information by using multiple carriers is provided. The method includes: configuring a superframe for an operation of the multiple carriers; and transmitting the broadcast information through at least one primary carrier selected from the multiple carriers. Accordingly, the multiple carrier system can effectively manage respective carriers, and particularly can effectively use radio resources in transmission of broadcast information. | 02-10-2011 |
20110044281 | METHOD OF TRANSMITING CONTROL INFORMATION AND TERMINAL THEREOF - A terminal transmits control information to a base station by using a periodically allocated dedicated channel. In further detail, the terminal checks control information that needs to be transmitted, detects a priority of the checked control information, and selects control information to be transmitted to the base station based on the detected priority. The terminal forms a PDU by multiplexing the selected control information, and transmits the PDU to the base station. | 02-24-2011 |
20110058511 | METHOD FOR TRANSMITTING DATA OF MULTICAST BROADCAST SERVICE USING SUPERFRAME HEADER IN MOBILE WIRELESS CONNECTION SYSTEM - There is provided a method of transmitting multicast broadcast service (MBS) data using a superframe including a plurality of subframes in a mobile wireless connection system, the method including transmitting MBS MAP indication information indicating the first at least one first resource unit of an MBS region in the beginning of an MBS scheduling interval (MSI) and MBS control information including subframe offset information; transmitting an MBS MAP through the first resource unit; and transmitting an MBS burst indicated by the MBS MAP, wherein the subframe offset information including an index of the subframe at a point where the MBS burst is ended. | 03-10-2011 |
20110059755 | METHOD OF PROVIDING LOCATION INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method of providing location information in a wireless communication system includes receiving a location information request message, including Location Based Service (LBS) control information, from a Base Station (BS), the LBS control information being information about a condition in which location information is reported, performing LBS measurement, and if the condition is satisfied, transmitting a location information response message, including location information collected through the LBS measurement, to the BS. In accordance with the present invention, in a wireless access system supporting LBS, LBS-related information can be reported irrespective of the state of a User Equipment (UE). In particular, in the case in which a UE is in an idle state, location information can be provided efficiently and rapidly. | 03-10-2011 |
20110059761 | METHOD FOR COMMUNICATION USING CARRIER SWITCHING IN MOBILE COMMUNICATION SYSTEM SUPPORTING MULTIPLE CARRIER - There is provided a method for transmitting data by a base station (BS) in a multicast broadcast service (MBS) supporting multiple carriers in a wireless communication system. The method comprises receiving a switching request message indicating an E-MBS service requested by a mobile station (MS), from the MS, transmitting a switching response message including information regarding a switching start time among a plurality of carriers set in the MS and transmitting data regarding an E-MBS service requested by the MS to the MS through a primary carrier, starting from the switching start time. | 03-10-2011 |
20110064016 | METHOD OF TRANSMITTING DATA OF MULTICAST BROADCAST SERVICE IN MOBILE WIRELESS CONNECTION SYSTEM - A method for receiving multicast broadcast service (MBS) data by a mobile station (MS) in a mobile wireless connection system which comprises receiving MBS-related information of at least one neighbor base station (BS) from a serving BS, performing handover from the serving BS to a target BS selected from the neighbor BSs, determining whether or not MBS-related information of the serving BS and MBS-related information of the target BS are identical, updating MBS-related information of the MS based on the determination results and receiving MBS data by using the updated MBS-related information of the MS, wherein the received MBS-related information of the neighbor BS comprises at least one of indication information indicating whether or not the MBS-related information of the neighbor BS and the MBS-related information of the serving BS are identical, information required to be updated among the MBS-related information of the serving BS, and every MBS-related information of the target BS is provided. | 03-17-2011 |
20110064053 | HANDOVER MANAGEMENT METHOD IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a handover management method that can reduce a service interruption time due to handover of a mobile station in a wideband wireless access system. A handover management method according to an exemplary embodiment of the present invention includes receiving a handover request message from a serving base station, transmitting a handover response message that includes a basic channel identifier to be allocated to a mobile station, receiving a ranging request message from the mobile station using the basic channel identifier, and using the basic channel identifier to start uplink/downlink communication with the mobile station. | 03-17-2011 |
20110064057 | METHOD OF ACQUIRING BROADCAST INFORMATION - In a method of acquiring broadcast information acquisition, the terminal receives partial broadcast information from a base station, and transmits an initial access message including indication for the partial broadcast information to the base station. The terminal receives an initial access response message including broadcast information other than the partial broadcast information. | 03-17-2011 |
20110075600 | METHOD OF TRANSMITTING MULTICAST BROADCAST SERVICE - A method of a base station transmitting Multicast Broadcast Service (hereinafter referred to as MBS) includes transmitting MBS configuration information, including information about an MBS region which is a resource region to which MBS-related information is allocated and information about an MBS MAP, to a terminal and transmitting MBS data to the terminal through the MBS region. The information about the MBS region includes location information and a transmission parameter of the MBS region. The MBS MAP includes an MBS configuration information change indication which indicates whether the MBS configuration information is expected to change from first MBS configuration information to second MBS configuration information. MBS is effectively and persistently managed in a mobile wireless communication system supporting MBS. | 03-31-2011 |
20110092235 | APPARATUS FOR MEASURING RADIO ENVIRONMENT OF BASE STATION AND METHOD FOR MEASURING THE SAME - A method and apparatus for measuring a radio environment of a base station is provided. The method includes respectively selecting one or more frames for measuring a radio environment in a first mode in which an Over-The-Air Receiver (OTAR) of the base station is initialized and a second mode in which the OTAR is active, continuously measuring the radio environment based on the selected one or more frames in the first mode and intermittently measuring the radio environment based on the selected one or more frames in the second mode. | 04-21-2011 |
20110092239 | APPARATUS FOR MANAGING RADIO RESOURCES OF BASE STATION AND METHOD FOR MANAGING THE SAME - A method for managing radio resources of a base station is provided. The method includes evaluating a radio environment between a base station and at least one neighboring base station or a radio environment between the base station and terminals connected to the base station, if the evaluated radio environment does not meet predetermined criteria, selecting a new radio resource, deactivating the existing radio resource, and reactivating the new radio resource. Accordingly, the radio resources can be efficiently managed. | 04-21-2011 |
20110105129 | FEMTOCELL SEARCH METHOD FOR MACRO TO FEMTO HANDOVER - The present invention relates to a femtocell search method for a handover from a macrocell to a femtocell. The present invention relates to a method for a terminal that accesses a macrocell to search a femtocell in an environment where a plurality of femtocells are overlapped in one macrocell. The terminal searches a femtocell by using a dummy preamble in order to minimize the size of neighbor cell lists broadcasted from the macrocell to the terminal. Therefore, according to the present invention, an MAC overhead can be minimized by eliminating neighbor femtocell lists in a mobile neighbor advertisement (MOB_NBR_ADV) message broadcasted from the macrocell, and the terminal can search a femtocell with a minimum scanning load by checking only a femtocell dummy preamble in a dedicated symbol of the macrocell. | 05-05-2011 |
20110116466 | IDENTIFYING METHOD AND PROTOCOL DATA UNIT GENERATING APPARATUS - A terminal identifying method identifies a terminal in a media access control layer, and includes allocating a station ID to the terminal for identifying the terminal, and allocating a flow ID to a connection in the terminal for identifying the connection in the terminal. | 05-19-2011 |
20110126037 | POWER SAVING METHOD IN MOBILE COMMUNICATION NETWORK - Provided is The present invention provides a method to dynamically control the sleep window or the listening window of a sleep mode in order to minimize power consumption of a mobile terminal. The power saving method relates to a method for a transmitter of a communication system that controls data transmission to a listening window and a sleep window to control the sleep window, wherein if the data transmission is generated during the listening window, the transmitter gradually decreases a sleep window subsequent thereto by a predetermined ratio, and to the contrary, if the data transmission is not generated during the listening window, the transmitter gradually increases a sleep window subsequent thereto by a predetermined ratio. | 05-26-2011 |
20110126069 | METHOD AND APPARATUS FOR CONTROLLING RETRANSMISSION - In a retransmission control method, a HARQ process is performed by transmitting a HARQ burst to a receiving side. When the HARQ process for the HARQ burst is terminated with unsuccessful transmission of the HARQ burst, transmission of an ARQ block corresponding to the HARQ burst is initiated. | 05-26-2011 |
20110141933 | METHOD AND APPARATUS FOR CONTROLLING POWER FOR UPLINK - A method and apparatus for controlling power for uplink are provided. When a base station is moving or unable to communicate with others, at least one interference amount is estimated for a neighboring base station based on a path gain between a terminal and the neighboring base station and a transmission power of each encoding packet size and transmission format included in a candidate group related to scheduling transmission power parameters. A target interference amount is determined based on an interference amount control value and an initial target interference amount according to a processing load of a serving base station, and one interference amount is selected from estimated interference amounts based on the target interference amount. The terminal determines the transmission power based on an encoding packet size and a transmission format corresponding to the selected interference amount. | 06-16-2011 |
20110149832 | METHOD FOR DATA TRANSMITTING IN MOBILE MULTICAST BROADCAST SERVICE - Disclosed is a method for transmitting multicast broadcast service (MBS) data in a wireless communication system, the method comprising: transmitting an MBS MAP, which comprises MBS AAI subframe offset and MBS resource index. MBS AAI subframe offset and MBS resource index indicate the end subframe (i.e., subframe offset) of MBS data and the number of resource units in the end subframe of the MBS data burst and resource allocation information about an MBS data burst, to a mobile station; and allocating resources as many as the number of resource units which is appointed by the MBS subframe offset and MBS resource index from transmission starting point of the MBS data burst on the basis of the resource allocation information and transmitting the MBS data burst using the allocated resources to the mobile station | 06-23-2011 |
20110153430 | METHOD FOR BROADCASTING AND METHOD FOR RECEIVING LOCATION INFORMATION OF BASE STATION - A plurality of location-based service advertisement messages including location information of base stations belonging to each network are broadcasted with different timing in multiple wireless networks. Therefore, a terminal receives only at least on location-based service advertisement message corresponding to an accessible network among the plurality of location-based service advertisement messages. | 06-23-2011 |
20110158169 | METHOD OF TRANSMITTING CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM AND METHOD OF ACKNOWLEDGING THE CONTROL INFORMATION - A method of acknowledgment by a receiver includes: receiving a control message via a payload of a medium access control protocol data unit (MAC PDU) from a transmitter or receiving control information through an extended header or signaling header of the MAC PDU; and transmitting an acknowledgment of the control message or control information through an acknowledgment extended header containing information about whether the acknowledgment is an acknowledgment of the control message or an acknowledgment of the control information. | 06-30-2011 |
20110183674 | TERMINAL AND METHOD FOR HANDOVER THEREOF - A method for handover of the present invention is a method for handover of a terminal supporting a multi-carrier including a first carrier and a second carrier, the method including: transmitting a handover request message to a serving base station; receiving a handover response message from the serving base station according to a handover response message transmitted from a target base station to the serving base station; after receiving the handover response message from the serving base station, transmitting and receiving data to and from the serving base station using the first carrier; and performing a handover signaling process to the target base station using the second carrier. | 07-28-2011 |
20110194479 | TRANSMITTING DEVICE, TRANSMITTING METHOD, AND RECEIVING METHOD FOR MULTICAST AND BROADCAST SERVICE - A transmitting device for a multicast and broadcast service according to an embodiment of the present invention includes: an encoder that receives data to generate parity; an ARQ block generator that generates a first automatic repeat request (ARQ) block by dividing the data and generates a second ARQ block by dividing the parity; a PDU generator that generates a first protocol data unit (PDU) including the first ARQ block and a second protocol unit (PDU) including the second ARQ block; and a transmitter that transmits the first PDU and the second PDU to a plurality of terminals. | 08-11-2011 |
20110194480 | METHOD AND DEVICE FOR MANAGING OF MULTICAST AND BROADCAST SERVICE - A method for managing a multicast and broadcast service in a base station according to an embodiment of the present invention includes: transmitting a multicast and broadcast service control channel to a terminal; transmitting an indicator channel for indicating a change of the multicast and broadcast service control channel by using a unicast control channel when the multicast and broadcast service control channel is changed, to the terminal; and transmitting the changed multicast and broadcast service control channel to the terminal. | 08-11-2011 |
20110228717 | METHOD AND APPARATUS FOR MANAGING CARRIER OF MULTICAST AND BROADCAST SERVICE - A method of managing carriers in a terminal of a multi-carrier system is provided. The method includes switching from a primary carrier to an MBS carrier for an MBS, receiving MBS-associated data from a base station through the MBS carrier, returning to the primary carrier from the MBS carrier after receiving the MBS-associated data, and communicating with the base station through the primary carrier. | 09-22-2011 |
20110237252 | METHOD FOR MANAGING NEIGHBOR BASE STATION LIST BASED ON TERMINAL LOCATION FOR EFFICIENT CELL SELECTION AND HANDOFF IN MACROCELL ENVIRONMENTS WITH FEMTOCELL - In order to manage a neighbor list of neighboring base stations based on the location of a terminal communicating with a base station of a macrocell with femtocell deployments, the base station divides the macrocell in accordance with a predetermined standard of division, and generates a mobile neighbor advertisement message so as to periodically transmit the generated message to the terminal. At this time, the terminal identifies the current location thereof in the macrocell upon receipt of the pilot signals periodically transmitted from the base station of the macrocell. The terminal obtains information regarding the location of the terminal from the information regarding the femtocells deployed within the respective divided regions and information regarding macrocells neighboring the macrocell through using the mobile neighbor advertisement message to scan base stations. | 09-29-2011 |
20110312324 | METHOD FOR PROVIDING SERVICE OF FEMTOCELL, AND TRANSMITTER AND RECEIVER FOR THE SAME - A service method of a femtocell for simultaneously providing a plurality of femto services to a plurality of mobile stations, and a transmitter and receiver for the same. When a femto advanced base station supports a plurality of femtocell subscription types, and it simultaneously provides data services with different qualities to mobile stations having subscribed to different femtocells. The femtocell subscription type supported by the femto advanced base station is advertised to the mobile station through an identifier at a PHY level or an identifier at a MAC level. A CSG-closed femtocell provides a high-quality data service to limited subscribers, a CSG-open femtocell provides a relatively low quality data service to limited subscribers, and an OSG femtocell provides the lowest quality data service to all mobile stations irrespectively of subscription states. | 12-22-2011 |
20110312364 | METHOD AND DEVICE FOR TRANSMITTING SCANNING START INFORMATION OF DIFFERENT RADIO ACCESS NETWORK - A method and device for providing reference information for starting scanning a different radio access network to a terminal in a boundary area is provided. A receiver supporting a plurality of access systems includes a receiving circuit for receiving a scanning threshold from a transmitter, a first measuring module for measuring channel quality of a serving cell, and a second measuring module for starting scanning a neighboring cell that is a different radio access network when channel quality of the serving cell is less than the channel quality threshold. The receiver may further include a handover module for performing handover to the neighboring cell when the channel quality of the neighboring cell measured by the second measuring module is greater than that of the serving cell. | 12-22-2011 |
20120002582 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MBS DATA - An MBS transmitting apparatus allocates a plurality of subbands of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the subbands, allocated to the MBS region, to at least one MBS zone and generates MBS zone allocation information of the at least one MBS zone. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits MBS data through the subbands allocated to the MBS region. | 01-05-2012 |
20120008638 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTICAST BROADCAST SERVICE DATA - An MBS transmitting apparatus allocates a plurality of time intervals of an MBS transmission carrier to an MBS region and a non-MBS region and generates region allocation information of the MBS region and the non-MBS region. The MBS transmitting apparatus allocates the time intervals, allocated to the MBS region, to one or more MBS zones and generates MBS zone allocation information of the one or more MBS zones. The MBS transmitting apparatus transmits the region allocation information and the MBS zone allocation information and transmits the MBS data through the time intervals allocated to the MBS region. | 01-12-2012 |
20120036222 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTICAST BROADCAST SERVICE - A multicast broadcast service (MBS) receiving device establishes an MBS connection with an MBS transmitting device through a connection establishment message. When it is determined to receive MBS right after establishing the MBS connection, the MBS receiving device starts to receive the MBS right after establishing the MBS connection. When it is determined to not receive MBS right after establishing the MBS connection, the MBS receiving device transmits an MBS report message to the MBS transmitting device and then starts to receive the MBS. | 02-09-2012 |
20120087287 | METHOD FOR CONTROLLING POWER SAVING MODE IN GROUP COMMUNICATION - A method of controlling power saving modes of a plurality of terminals joining in a group communication by a base station is provided. The base station establishes a group call connection with the plurality of terminals, and establishes a same power saving mode pattern for the plurality of terminals. | 04-12-2012 |
20120094654 | DEVICE AND METHOD FOR MANAGING BASE STATION AND TERMINAL - A base station management method according to the present invention is a method for managing an operation mode of a base station, and includes determining whether a terminal exists in a cell managed by the base station and operating in a low duty operation mode (LDM) when no terminal exists in the cell. | 04-19-2012 |
20120106516 | METHOD AND APPARATUS FOR TRANSMITTING NEIGHBOR BASE STATION INFORMATION PERFORMED BY MACRO BASE STATION IN WIRELESS COMMUNICATION SYSTEM - Provided is a method for requesting neighbor base station information by user equipment in a wireless communication system. The method includes: searching neighbor base stations targeted for a handover; transmitting a list request message including preamble information about a neighbor base station searched by the user equipment among the neighbor base stations and a neighbor base station list request indicator indicating a request for information about the neighbor base station to a serving base station; and receiving a list response message including an identification information and system information of the neighbor base station from the serving base station. | 05-03-2012 |
20120108238 | METHOD FOR OPERATION OF FEMTO BASE STATION BASED ON RADIO ACCESS SYSTEM - A method for opearation of femto base station (BS) is provided. The method includes: transmitting the first low duty operation (LDO) pattern information, which includes length information of an available interval (AI) where the femto BS is activated and length information of an unavailable interval (UAI) where the femto BS is inactivated, to user equipment (UE) and operating based on the first LDO pattern where the first LDO cycle, a sequence of the AI and the UAI, is repeatedly arranged. The first LDO pattern information further including a superframe offset as information for leading a start point of the first LDO cycle. | 05-03-2012 |
20120113943 | HANDOVER METHOD IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method of a handover in a wireless communication system. The method includes transmitting a handover request message to the service BS, and receiving a handover command message from the service BS in response to the handover request message. Multi-carriers are assigned to a terminal in advance right before a handover, and all or some of the multi-carriers are activated right after the handover. Therefore, multi-carrier are effectively utilized. | 05-10-2012 |
20120115481 | METHOD FOR PROVIDING AND RECEIVING RELIABLE SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method for providing reliable wireless service in a femto system is provided. The method includes broadcasting information about out-of-service, which notifies that an air interface based on the femto BS is disabled, to user equipment (UE); and disabling the air interface. The information about the out-of-service comprising an identifier about a recommended BS that is another BS which the UE can enter. | 05-10-2012 |
20120163278 | METHOD FOR PERFORMING DIRECT COMMUNICATION BETWEEN TERMINALS - A method for performing direct communication, by a first terminal, between terminals, includes transmitting a control message for a direct communication resource allocation to at least one second terminal through a first region included in a direct communication resource, transmitting synchronization information to at least one second terminal through a second region included in the direct communication resource, and transmitting a data packet to at least one second terminal through a third region included in the direct communication resource. | 06-28-2012 |
20120163283 | METHOD FOR RELAYING OF BASE STATION AND METHOD FOR RELAYING OF TERMINAL - A method of relaying in a base station that enable a first base station to operate as a relay station in order to communicate with a second base station that is connected to backhaul, the method includes: forming, by the first base station, a relay link with the second base station; and starting, by the first base station, a relay mode. | 06-28-2012 |
20120172038 | METHOD FOR CONFIGURATION CELL BY MULTI MODE TERMINAL AND METHOD FOR OPTIMIZATION CELL BY MULTI MODE TERMINAL - A method of configuring a cell of a terminal includes: transmitting, by the terminal, when the terminal searches for an idle band, a downlink frame; performing a network entry procedure with other terminals at 1 hop from the terminal; and optimizing, by the terminal, transmission power. | 07-05-2012 |
20120176985 | METHOD OF UPDATING SYSTEM INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention provides a method of a Base Station (BS) updating system information using a superframe structure in a wireless communication system, comprising transmitting a primary header including system scheduling information pertinent to an update of the system information and transmitting an updated secondary header. The system scheduling information comprises secondary header change state information indicating a change state of the updated secondary header, secondary header applying information indicating whether the secondary header change state information is applied to a current system, and a secondary header change indicator indicating the updated secondary header. | 07-12-2012 |
20120188981 | SIGNALLING METHOD FOR DIRECT COMMUNICATION BETWEEN TERMINALS - A signaling method of a first terminal for direct communication between terminals includes transmitting a link establishment request message for establishing a direct communication link including flow information to a second terminal, receiving a link establishment response message for establishing a direct communication link including flow information from the second terminal, and establishing a direct communication link between the first terminal and the second terminal. | 07-26-2012 |
20120190397 | METHOD FOR TRANSMITTING SIGNAL IN MACHINE TO MACHINE COMMUNICATION - A method of relaying a base station that operates as a relay link in order for a first base station to communicate with a second base station that is connected to backhaul includes: forming, by the first base station, a relay station with the second base station; and starting, by the first base station, a relay mode. | 07-26-2012 |
20120201197 | METHOD FOR TRANSMITTING UPLINK DATA, AND BASE STATION AND TERMINAL SUPPORTING THE SAME IN MOBILE COMMUNICATION SYSTEM - Provided are a method for transmitting uplink data by a terminal in a mobile communication system, the method comprising: when data to be transmitted to uplink is generated in an idle mode, transmitting a ranging request message including at least one of a group identifier allocated to each terminal group to which the terminal belongs, an offline transmission indicator indicating transmission of uplink data in a state in which the terminal is not connected to a network, and uplink data, to a base station; and receiving a ranging response message confirming that the uplink data has been successfully transmitted, from the base station. | 08-09-2012 |
20120224546 | METHOD AND TERMINAL FOR PERFORMING DIRECT COMMUNICATION BETWEEN TERMINALS - A first terminal for performing direct communication between terminals includes: a radio frequency (RF) unit; and a processor, the processor being adapted to perform direct communication with at least one second terminal by using resources allocated for direct communication between terminals, wherein the resources are divided into a first slot region and a second slot region, the first slot region including a synchronization channel containing synchronization information for direct communication between terminals, a dedicated channel for transmitting direct communication data between terminals, and a supplementary channel one-to-one mapped with the dedicated channel, and the second slot region including the dedicated channel and the supplementary channel. | 09-06-2012 |
20120257556 | METHOD FOR TRANSMITTING SIGNAL IN MACHINE TO MACHINE COMMUNICATION - A method in which a base station transmits a signal to a plurality of terminals in a machine to machine (M2M) communication system, the method including: allocating an M2M device group ID (MGID) that identifies a terminal group to at least one of the plurality of terminals; and sustaining the MGID when the terminal that belongs to the terminal group is in an idle state. | 10-11-2012 |
20120257564 | METHOD FOR RECEIVING MOBILE MULTICAST BROADCAST SERVICE IN MULTI-CARRIER WIRELESS COMMUNICATION SYSTEM - Method receiving Multicast Broadcast Service (MBS) in a wireless communication system is provided. The method comprises receiving a Dynamic Service Addition (DSA) message through a primary carrier, from a Base Station (BS); switching from the primary carrier to a secondary carrier based on the DSA message; receiving an MBS Configuration message through the secondary carrier, from the BS; and receiving MBS data through the secondary carrier based on the MBS Configuration message, from the BS. | 10-11-2012 |
20120281615 | METHOD FOR COMMUNICATION OF BASE STATION, TERMINAL AND RELAY STATION - A method for communication of a base station includes: receiving first data from a first terminal; transmitting the first data to a second terminal by local forwarding without passing through an access service network (ASN); receiving second data from the second terminal; and transmitting the second data to the first terminal without passing through the ASN. | 11-08-2012 |
20120287839 | METHOD AND APPARATUS FOR UPDATING MULTICAST AND BROADCAST SERVICE - When MBS information is updated, a base station transmits a first message to a terminal. The first message includes a service flow update indicator for indicating a scheme for describing a current MBS identifier (ID) and flow ID to be updated, information on the current MBS ID and flow ID described by the scheme indicated by the service flow update indicator, and new MBS information. The terminal transmits a second message to the base station in response to the first message. | 11-15-2012 |
20120294245 | METHOD AND TERMINAL FOR PERFORMING DIRECT COMMUNICATION BETWEEN TERMINALS - Disclosed is a method for a first terminal to perform direct communication between terminals, the method including performing direct communication with at least one second terminal by using resources allocated for direct communication between terminals, the resources including a synchronization channel used for frequency synchronization and time synchronization between terminals, and the synchronization channel including a synchronization channel preamble used for at least one of preamble detection, time offset estimation, frequency offset estimation, and channel estimation. | 11-22-2012 |
20130010593 | METHOD FOR MANAGING LOAD, METHOD FOR SYSTEM ACCESS, BASE STATION AND TERMINAL IN MOBILE COMMUNICATION SYSTEM - A system access method of a terminal in a mobile communication system according to an exemplary embodiment of the present invention includes receiving a control channel or a control message including resource allocation information, an access restriction indicator, and information about a random access region from a base station, and determining whether or not to access the base station according to a set value of the access restriction indicator. | 01-10-2013 |
20130010671 | METHOD AND APPARATUS FOR MANAGING MULTICAST AND BROADCAST SERVICE RESOURCE - When zone allocation information of sub-bands is changed, a terminal receives a new MBS configuration message after a lifetime of an MBS configuration message at a time when the changed zone allocation information is received is expired. The terminal applies the changed zone allocation information at the beginning of the first MSI of the new MBS configuration message. | 01-10-2013 |
20130016646 | TERMINAL OF SUPPORTING DIRECT COMMUNICATION USING INFRA COMMUNICATION AND DIRECT COMMUNICATION METHOD OF THE SAMEAANM CHANG; Sung CheolAACI DaejeonAACO KRAAGP CHANG; Sung Cheol Daejeon KRAANM YUN; Mi YoungAACI DaejeonAACO KRAAGP YUN; Mi Young Daejeon KRAANM KIM; EunkyungAACI DaejeonAACO KRAAGP KIM; Eunkyung Daejeon KRAANM KIM; Sung KyungAACI DaejeonAACO KRAAGP KIM; Sung Kyung Daejeon KRAANM KIM; Won-IkAACI DaejeonAACO KRAAGP KIM; Won-Ik Daejeon KRAANM LEE; HyunAACI DaejeonAACO KRAAGP LEE; Hyun Daejeon KRAANM YOON; Chul SikAACI SeoulAACO KRAAGP YOON; Chul Sik Seoul KRAANM LIM; Kwang JaeAACI DaejeonAACO KRAAGP LIM; Kwang Jae Daejeon KRAANM KIM; SeokkiAACI Osan-siAACO KRAAGP KIM; Seokki Osan-si KR - A method in which a first terminal supports direct communication using infracommunication includes setting at least one direct communication link with at least one second terminal, setting at least one traffic connection with a base station, and forwarding data that is transmitted through the at least one direct communication link from the at least one second terminal to the at least one traffic connection or forwarding data that is transmitted through the at least one traffic connection from the base station to the at least one direct communication link. | 01-17-2013 |
20130016675 | METHOD FOR REPORTING EMERGENCY AND TERMINAL IN MOBILE COMMUNICATION SYSTEMAANM CHA; Jae SunAACI DaejeonAACO KRAAGP CHA; Jae Sun Daejeon KRAANM JUNG; SoojungAACI DaejeonAACO KRAAGP JUNG; Soojung Daejeon KRAANM KIM; SeokkiAACI Osan-siAACO KRAAGP KIM; Seokki Osan-si KRAANM YOON; Chul SikAACI SeoulAACO KRAAGP YOON; Chul Sik Seoul KRAANM LIM; Kwang JaeAACI DaejeonAACO KRAAGP LIM; Kwang Jae Daejeon KR - Disclosed is a method for a terminal to report an emergency in a mobile communication system, the method including detecting an emergency and transmitting an emergency report header to a base station to notify the base station of the emergency, the emergency report header including a field indicating a signaling header for emergency reporting. | 01-17-2013 |
20130017817 | METHOD FOR COMMUNICATION OF BASE STATION AND TERMINALAANM Kim; Won-IkAACI DaejeonAACO KRAAGP Kim; Won-Ik Daejeon KRAANM Kim; EunkyungAACI DaejeonAACO KRAAGP Kim; Eunkyung Daejeon KRAANM Kim; Sung KyungAACI DaejeonAACO KRAAGP Kim; Sung Kyung Daejeon KRAANM Chang; Sung CheolAACI DaejeonAACO KRAAGP Chang; Sung Cheol Daejeon KRAANM Cha; Jae SunAACI DaejeonAACO KRAAGP Cha; Jae Sun Daejeon KRAANM Yun; Mi YoungAACI DaejeonAACO KRAAGP Yun; Mi Young Daejeon KRAANM Lee; HyunAACI DaejeonAACO KRAAGP Lee; Hyun Daejeon KRAANM Yoon; Chul SikAACI SeoulAACO KRAAGP Yoon; Chul Sik Seoul KRAANM Lim; Kwang JaeAACI DaejeonAACO KRAAGP Lim; Kwang Jae Daejeon KR - A method of performing communication of a terminal includes the terminal transmitting state information thereof to a base station, and the terminal receiving a mode change request from the base station when the terminal is selected by the base station. | 01-17-2013 |
20130022199 | ENCRYPTION METHOD AND APPARATUS FOR DIRECT COMMUNICATION BETWEEN TERMINALS - A method for performing direct communication between terminals includes: a transmitting terminal's encrypting data using a direct communication transport encryption key (DTEK) for direct communication; and transmitting the encrypted data to a receiving terminal, wherein the DTEK is managed in an SA (security association) defined within the transmitting terminal or the receiving terminal. | 01-24-2013 |
20130029697 | BASE STATION, MOBILE STATION, PAGING MESSAGE TRANSMITTING METHOD, AND PAGING MESSAGE RECEIVING METHOD - A base station allocates a paging group to a mobile station. The base station transmits, to a mobile station, a first message including indices of a plurality of carriers and information for the plurality of carriers and a second message including paging group information representing whether each of a plurality of carriers supports each of one or more paging groups. Then, the base station selects a paging transmission carrier for the mobile station from among at least one paging carrier corresponding to the paging group allocated to the mobile station and transmits the paging message through the paging transmission carrier. | 01-31-2013 |
20130039255 | BASE STATION, MOBILE STATION, PAGING MESSAGE TRANSMITTING METHOD, AND PAGING MESSAGE RECEIVING METHOD - A method for a base station supporting multicarrier operation to transmit a paging message is provided. The base station determines a first time point for multicast broadcast service (MBS)-related information and transmits the MBS-related information through a first carrier at the first time point. Also, the base station determines a second time point for transmitting a paging message to a mobile station, determines a second carrier for transmitting the paging message to the mobile station, and transmits the paging message through the second carrier at the second time point. Here, the second time point is different from the first time point. | 02-14-2013 |
20130064164 | METHOD AND APPARATUS FOR MANAGING MULTICAST SERVICE - A method of managing a multicast service is provided to a mobile station. The mobile station receives from a base station a message including information on a multicast indication cycle including a multicast available interval and a multicast unavailable interval. The mobile station receives a multicast indicator in the multicast available interval of the multicast indication cycle, and receives a multicast traffic at a transmission time indicated by the multicast indicator. | 03-14-2013 |
20130107789 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA | 05-02-2013 |
20130107795 | COMMUNICATION METHOD OF RELAY, TERMINAL, AND COMMUNICATION METHOD OF THE TERMINAL | 05-02-2013 |
20130109298 | TERMINAL AND METHOD OF COMMUNICATING IN THE SAME | 05-02-2013 |
20130121236 | MULTICAST MANAGEMENT METHOD AND APPARATUS - A multicast management method of a base station is provided. The base station generates a CRC for a message including resource allocation information of a multicast group including a plurality of terminals, and masks the CRC by a CRC mask. The base station adds the masked CRC to the message, and then transmits the message to which the masked CRC is added to the multicast group. | 05-16-2013 |
20130130736 | GROUP COMMUNICATION METHOD AND APPARATUS - A group communication method of a terminal is provided. The terminal establishes a group call connection with a first base station belonging to a group call zone, and receives group call data from the first base station. When moving to the coverage area of a second base station belonging to the group call zone, the terminal receives group call data from the second base station. | 05-23-2013 |
20130176935 | TERMINAL AND COMMUNICATION METHOD THEREOF - A communication method of a terminal that can operate in a relay mode or a base station mode is provided. When the terminal, having received a service from a first base station, detects that a service connection to the first base station is unavailable, the terminal searches for a second base station, which is an available neighboring base station. The terminal transmits a ranging request message including a base station identifier of the first base station to the second base station. | 07-11-2013 |
20130177030 | METHOD AND APPARATUS FOR TRANSMITTING SYNCHRONIZATION CHANNEL, AND METHOD AND APPARATUS FOR RECEIVING SYNCHRONIZATION CHANNEL - In a direct communication between terminals, a terminal transmits a synchronization channel preamble part after transmitting a synchronization channel message part including synchronization information. The terminal receives a dedicated channel including a direct communication packet after transmitting the synchronization channel preamble part. A transition time gap for switching from transmission to reception may be inserted to an end of the synchronization channel preamble part. | 07-11-2013 |
20130208584 | MOBILE STATION, BASE STATION, AND RELAY STATION FOR A WIRELESS ACCESS SYSTEM - Protocol structure of a mobile station, base station or relay station in a wireless access system is provided. The protocol structure includes a first function block configured to perform radio resource control and management as a MAC layer and to reside on a control plane, and a second function block configured to perform medium access control as the MAC layer and to reside on the control plane and a data plane. The first function block includes various function blocks for supporting high reliability. | 08-15-2013 |
20130235784 | METHOD AND APPARATUS FOR MANAGING MULTICAST RESOURCE - A method of managing a multicast resource is provided by a base station. The base station allocates a multicast resource to a multicast group. The base station generates a MAP IE including information of the multicast resource and a transmission indication for indicating whether the multicast resource is fragmented, and transmits the MAP IE to the multicast group. | 09-12-2013 |
20130286819 | MULTIMODE APPARATUS AND COMMUNICATON METHOD THEREOF - A multimode apparatus and a communication method thereof are disclosed. If the multimode apparatus is chosen to serve as a relay station due to a base station having a backhaul link problem, it sets up a first relay link with a first base station. Upon receiving a request for releasing the first relay link from the first base station even though the backhaul link is not restored, the multimode apparatus sets up a second relay link with a second base station, or configures and operates a standalone network or an independent network. | 10-31-2013 |
20140038580 | METHOD FOR COMMUNICATION OF BASE STATION AND TERMINAL - A method of performing communication of a terminal includes the terminal transmitting state information thereof to a base station, and the terminal receiving a mode change request from the base station when the terminal is selected by the base station. | 02-06-2014 |