Patent application number | Description | Published |
20080214249 | Sleep Mode Controlling Apparatus and Method in Cellular System - In a cellar system providing various packet services, sleep mode operation of a terminal in an idle state is controlled. The cellular system determines a discontinuous receiving (DRX) period according to a QoS of a packet service provided to the terminal, and runs the sleep mode according to the determined DRX period. The cellular system runs the sleep mode divided into shallow sleep duration and deep sleep duration. With this manner, a paging delay to the terminal and a power consumption of the terminal may be reduced. | 09-04-2008 |
20080218209 | Device for Controlling Terminal State, Method Thereof, and Device for Transmitting Paging Message - The present invention relates to a device for controlling a state of a terminal with respect to mobility management, and a method thereof. The state of the terminal includes a disconnected state and a connected state, the connected state includes an active state and an idle state, and the active state includes an active sub-state and a standby sub-state. The terminal in the active state updates location information for each cell, and the terminal in the idle state updates the location information for each radio access network registration area including a plurality of cells. The terminal in the active sub-state performs a handover when leaving a current cell. The terminal in the standby sub-state determines a quality of service (QoS) of packet data, and performs the handover or is set to be in the idle state according to the determined QoS. | 09-11-2008 |
20080232260 | Method for Requesting Resource and Scheduling for Uplink Traffic in Mobile Communication and Apparatus Thereof - The present invention relates to a resource allocation requesting method and a packet scheduling method for uplink packet traffic in a mobile communication system, and an apparatus of the packet scheduling method. For efficient scheduling for the uplink traffic, scheduling is performed according to characteristics of traffic between a base station and user equipment (UE). Particularly, when the traffic generates a variable size packet on a periodic basis, the traffic is classified into first traffic that generates a completely variable size packet on a periodic basis and second traffic that generates a quasi-variable size packet on a periodic basis. In addition, the UE requests resource allocation in a different form from the base station depending on the type of traffic, and the base station performs scheduling according to the resource allocation request. Therefore, the UE requests resource allocation in accordance with traffic characteristics and the base station performs scheduling according to the traffic characteristics so that optimal uplink scheduling can be performed. | 09-25-2008 |
20080259862 | Method for Scheduling in Mobile Communication and Apparatus Thereof - The present invention relates to a scheduling device and method of a mobile communication system. In the packet scheduling method, a base station performs packet scheduling for a terminal station in a mobile communication system, and a transport channel comprising an uplink shared channel (UL-SCH) and a physical channel comprising an uplink grant channel (UL-GCH) between the terminal and the base station are classified into a plurality of channels. In addition, in the packet scheduling method: a) the base station receives scheduling information from the terminal; b) the base station allocates an uplink resource for uplink traffic transmission for terminal based on the received scheduling information; and c) information for the allocated uplink resource is transmitted to the terminal through the UL-GCH of the physical channel. | 10-23-2008 |
20090040955 | Method for Adaptive Discontinuous Reception Based On Extented Paging Indicator for Improvement of Power Effective Performance at Mobile Terminal on WCDMA - An extended paging indicator-based adaptive discontinuous reception method is proposed so as to improve a power saving performance of a terminal in an asynchronous wideband code division multiple access schemes. To this end, a plurality of terminals for performing power saving receive an extended paging indicator for a discontinuous reception cycle, conform a type of a bit Run for configuring the extended paging indicator, and change the discontinuous reception period. In addition, the terminals set the discontinuous reception period update factor value to be varied according to the extended paging indicator as an initial value so as to determine a next paging occasion block, change the discontinuous reception period update factor value according to the paging indicator of the bit Run received from base station, and change the discontinuous reception period according to the variance of the discontinuous reception period update factor value. The extended paging indicator-based adaptive discontinuous reception method may improve transmission time delay and transmission failure probability performances for packet reception as well as a power saving performance in comparison with a conventional fixed discontinuous reception method. | 02-12-2009 |
20090213800 | Device and Method for Controlling State in Cellular System - A terminal state controlling method and apparatus are provided. The terminal state includes a connected state and an idle state, and the connected state includes an active state and a dormant state. The active state includes a scheduling-ON state and a scheduling-OFF state. In the state controlling apparatus, a radio resource control (RRC) layer controls a transition between the active state and the dormant state, and a media access control (MAC) layer controls a transition between the scheduling-ON state and the scheduling-OFF state. | 08-27-2009 |
20090232161 | HIERARCHICAL HEADER FORMAT AND DATA TRANSMISSION METHOD IN COMMUNICATION SYSTEM - In order to transmit data between layers in a communication system, and ARQ controller determines a transmission method of a service packet according to QoS of the service packet of an upper layer, determines a retransmission method of the service packet according to the transmission method, generates a fragmentation block by fragmentizing and concatenating the service packet according to a transmission amount of the service packet determined by the transmission method, generates a data packet including the fragmentation block and fragmentation block information, adds radio link control information including the retransmission method to the data packet to generate a radio link control data packet, and transmits the radio link control data packet to a MAC layer. | 09-17-2009 |
20090252124 | Method for requesting resource and scheduling for uplink traffic in mobile communication and apparatus thereof - The present invention relates to a resource request and a packet scheduling method for uplink traffic in a mobile communication system. For efficient scheduling of the uplink traffic, a base station and user equipment (UE) determines a scheduling method according to characteristics of the traffic when performing negotiation therebetween. The traffic may be classified into traffic that generating a fixed-size packet in a periodical time interval, traffic that generates a variable-size packet in a periodic time interval, and traffic that generates a variable-size packet in a random time interval. Therefore, the UE requests a resource in accordance with the characteristics of the traffic and the base station performs scheduling according to the characteristics of the traffic such that an optimal uplink packet scheduling can be achieved. | 10-08-2009 |
20100008305 | PACKET SCHEDULING METHOD FOR REAL-TIME TRAFFIC TRANSMISSION IN MOBILE TELECOMMUNICATION SYSTEM - Provided is a method of scheduling packets in a mobile telecommunication. The method includes the steps of: a) calculating a normalized standard data unit (SDU) drop rate based on the number of SDUs that will be dropped if the SDUs will not transmitted in a next slot, the number of SDUs dropped unit a current slot, the number of SDUs transmitted until the current slot and a maximum SDU drop rate allowed at each session; b) selecting sessions to transmit in a next slot and deciding a transmission amount of each session at a current slot based on the normalized SDU drop rate; and c) performing the steps a) and b) until all basic units (BU) in one slot are used. | 01-14-2010 |
20100023831 | METHOD AND DEVICE FOR ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a resource allocation device for minimizing delay of an uplink retransmission resource allocation process in a wireless communication system having a high data rate, and a method thereof. In the method, user data are received and an ACK/NACK state of the received data is determined, and when the NACK state of the received data is determined, retransmission resource allocation is requested, retransmission resources are allocated, and retransmission resource allocation information is generated to be transmitted. | 01-28-2010 |
20100034145 | METHOD FOR RECEIVING PACKET IN MOBILE COMMUNICATION SYSTEM - Provided is a method of receiving a packet in a mobile communication system. According to a type of service provided in the present invention and activity of packet service, a mobile station operates in an operation level among DRX (discontinuous reception) operation levels that are based on operation parameters of different values and receives a packet. This results in performing efficient power consumption such that it is possible to minimize power consumption. | 02-11-2010 |
20100098007 | METHOD AND APPARATUS OF ALLOCATING RESOURCES IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a resource allocation device for efficiently using resources by persistently allocating the resources in a wireless communication system, and a method thereof. In the method, a quality of service (QoS) configuration is received according to a predetermined service, persistent resource allocation is performed according to a resource allocation request corresponding to the QoS configuration, various retransmission methods are determined when performing the persistent resource allocation, transmission data are established according to the determined retransmission method, and the transmission data are transmitted. | 04-22-2010 |
20100103889 | PREAMBLE ALLOCATION METHOD AND RANDOM ACCESS METHOD IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a preamble allocation method and a random access method in a mobile communication system. In the present invention, one among preamble resources is allocated to specific mobile stations in advance, before random access. The mobile stations request random access by transmitting a preamble based on the pre-allocated preamble resource to a base station. It is therefore possible to prevent collision caused by the fact that other mobile stations transmit the same preamble. | 04-29-2010 |
20100115362 | DEVICE AND METHOD FOR TRANSMITTING DATA - A data transmission device transmits coded packets and a code for decoding the coded packets to a receiving device. The data transmission device retransmits the coded packets and the code to the receiving device when failing to receive feedback information on a decoding success state of the coded packets from the receiving device. Accordingly, the data transmission device can increase the radio resource efficiency in the wireless communication system. | 05-06-2010 |
20100118804 | WIRELESS PACKET COMMUNICATION SYSTEM AND RESOURCE SCHEDULING METHOD THEREOF - According to the present invention, a wireless packet communication system having a protocol structure that can improve radio resource efficiency while reducing the amount of control information in packet transmission for radio resource allocation to a mobile station, and a radio resource allocation method of the system, is provided. | 05-13-2010 |
20100136987 | WIRELESS COMMUNICATION SYSTEM WITH PROTOCOL ARCHITECTURE FOR IMPROVING LATENCY - The present invention relates to a wireless communication system having protocol architecture for reducing latency of a cellular system. In the protocol architecture of the wireless communication system in the cellular system, a physical layer supports wireless transmission of the cellular system and estimates a radio channel condition. A data link layer determines a data transmission mode based on a QoS of user data and the radio channel condition estimated by the physical layer and performs segmentation and assembly of the packet data, and a network layer establishes and releases a radio bearer for transmitting packet data transmitted from the data link layer and a control command. A control service access point is provided for control information transmission between the data link layer and the physical layer. | 06-03-2010 |
20100246706 | METHOD FOR RESOURCE ALLOCATION IN WIRELESS COMMUNICATION SYSTEM - The present invention provides a method for resource allocation in a wireless communication system. In the method for resource allocation, a scheduler of a base station decides on a modulation scheme and an encoding scheme according to channel quality information (CQI), and decides on a number of allocated resource blocks according to transmission data size referring to a table of resource block allocation. The table of resource block allocation presents a number of allocated resource blocks and a number of transmission bits according to the number of allocated resource blocks. | 09-30-2010 |
20100254333 | METHOD OF TRANSMITTING AND RECEIVING RANDOM ACCESS RESPONSE INFORMATION IN RADIO COMMUNICATION SYSTEM, AND BASE STATION AND TERMINAL THEREOF - The present invention relates to a method of transmitting/receiving random access response information in a radio communication system, and a base station and a terminal thereof. According to the invention, in a case where a base station of a radio communication system transmits response information for random access processing requested from terminals, the base station determines whether to transmit non-contention-based response information and contention-based response information for each of one or more terminals, which requests random access, by one radio resource. When determining to be transmitted by one radio resource, the base station transmits the random access response information configured by the non-contention-based response information and the contention-based response information for each of one or more terminals. In addition, when determining to be transmitted by separate radio resources, the base station transmits the random access response information configured by the non-contention-based response information or the contention-based response information for each of one or more terminals. Accordingly, since the response information is efficiently configured from the point of view of allocation and utilization of radio resources, it can support variable and flexible utilization of physical layer radio resources. | 10-07-2010 |
20100316016 | APPARATUS AND METHOD FOR RANDOM ACCESS IN CELLULAR SYSTEM - Disclosed is a method and apparatus for RA in a cellular system. The RA in the cellular system includes receiving an RA preamble from a terminal for RA, transmitting, to the terminal, an RA response message including a sequence of the received RA preamble and uplink resource information of the terminal and overload state information with respect to the RA, receiving control information generated based on the RA response message from the terminal through the uplink resource information, and transmitting control response information with respect to the received control information. | 12-16-2010 |
20110074632 | WIRELESS POSITIONING METHOD AND APPARATUS - A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of transmitters are determined, respectively, the distance between the receiver and each of the transmitters is calculated, respectively, the weight of each of the transmitters is calculated by using each of the propagation delay tap, the distance is adjusted by using the weight of each of the transmitters, and an area, in which circles away by the adjusted distances between the receiver and each of the transmitters on the basis of each of the transmitters overlap with each other, is estimated as the location of the receiver. Thus, an error of wireless positioning according to a propagation environment can be reduced. | 03-31-2011 |
20110074634 | WIRELESS POSITIONING METHOD AND APPARATUS - A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of transmitters are determined, respectively, the distance between the receiver and each of the transmitters is calculated, respectively, the distances are corrected by using propagation delay taps of the respective transmitters to determine final distances between the receiver and each of the transmitters, and an area, in which circles away by the final distances between the receiver and each of the transmitters on the basis of the center of each of the transmitters overlap with each other, is estimated as the location of the receiver. Thus, an error of wireless positioning according to a propagation environment can be reduced. | 03-31-2011 |
20110074635 | METHOD AND APPARATUS FOR POSITIONING - Provides are method and apparatus for wireless positioning. An exemplary embodiment of the present invention provides a method for wireless positioning, which includes: receiving signals from a plurality of transmitters; determining propagation delay tabs of the plurality of transmitters, from the signals received from the plurality of transmitters, respectively; setting the order of the plurality of transmitters in accordance with the propagation delay tabs; measuring distances between a receiver and the transmitter, respectively; and estimating the position of the receiver, by using the order and the measured distance. | 03-31-2011 |
20110183689 | APPARATUS AND METHOD FOR DETERMINING POSITION - Provided is a wireless position determining method and apparatus. The wireless position determining includes: a measuring unit that measures a propagation delay tap of a signal received from a transmitting end through a channel; and extractor that extracts delay spread information having various forms based on the propagation delay tap; and an obtaining and calculating unit that obtains a distance between transmission and reception ends based on the delay spread information and calculates a position of a receiving end based on the obtained distance between the transmission and reception ends. | 07-28-2011 |
20110195697 | SLEEP MODE CONTROLLING APPARATUS AND METHOD IN CELLULAR SYSTEM - In a cellar system providing various packet services, sleep mode operation of a terminal in an idle state is controlled. The cellular system determines a discontinuous receiving (DRX) period according to a QoS of a packet service provided to the terminal, and runs the sleep mode according to the determined DRX period. The cellular system runs the sleep mode divided into shallow sleep duration and deep sleep duration. With this manner, a paging delay to the terminal and a power consumption of the terminal may be reduced. | 08-11-2011 |
20110286500 | SYNCHRONIZATION DEVICE AND METHOD OF RADIO-FREQUENCY REPEATER - A synchronization method of a radio repeater includes: using a first signal, a second signal, and a received signal including the first signal and the second signal to calculate correlation values of the first signal and the second signal; using the first signal correlation value, the second signal correlation value, and the power value of the received signal to output normalized correlation values; subtracting the normalized correlation value of the first signal and the normalized correlation value of the second signal; and detecting a start interval of the second signal based on the subtraction result and outputting a synchronization signal to synchronize the radio repeater. | 11-24-2011 |
20120244878 | APPARATUS AND METHOD FOR IDENTIFYING TERMINAL LOCATED IN SPACE INCLUDING SMALL BASE STATION - The present invention provides a method including two operations of a first operation and a second operation. The first operation may determine between a terminal located in a space including the small base station and a terminal located in a space excluding the small base station based on a value reported by a terminal. The second operation may be performed using information received from a neighboring macro base station in response to the determination failing to be performed in the first operation, thereby ultimately discriminating between an area including the small base station and an area excluding the small base station corresponding to a location of a terminal. | 09-27-2012 |
20130007728 | APPARATUS AND METHOD FOR PROVIDING APPLICATION SERVICE BASED ON AREA - The present invention relates to a short range wireless communication device for providing an application service based on an area. In particular, an apparatus for providing an application service based on an area in a small cell including a femtocell base station or a WiFi Access Point, the apparatus including a communication unit to receive a list of application services from an Application Service Provisioning Server, select and download at least one application service from the received list, an application service database to store the at least one downloaded application service, a service controller to install the at least one downloaded application service, or uninstall an installed application service, a user equipment access detector to detect a user equipment entering or exiting a service area, and a user equipment database to store an identifier and information of the user equipment entering or exiting the service area. | 01-03-2013 |
20130148523 | METHOD OF ALLOTTING CARRIER TO STATION - Disclosed is a carrier wave allotting method of an operation and maintenance system in a wireless communication network. The carrier wave allotting method includes searching a wireless resource of the wireless communication network; updating cell information indicating information of cells of the wireless communication network; searching an access mode of a station connected with the operation and maintenance system; searching a wireless capacity of the station; and allotting a carrier wave to the station according to the wireless resource, the cell information, the access mode, and the wireless capacity. | 06-13-2013 |
20130150021 | FEMTO BASE STATION GATEWAY AND OPERATING METHOD OF FEMTO BASE STATION GATEWAY - Disclosed is a femto base station gateway which includes an X2 interface configured to perform X2 communication; an S1 interface configured to perform S1 communication; and an X2 cache configured to store an X2 response message received via the X2 interface. | 06-13-2013 |
20130150022 | SMALL BASE STATION AND METHOD FOR PROVIDING SELF-ORGANIZING NETWORK (SON) FOR SMALL BASE STATION - Provided are a small base station, and a method for providing a Self-Organizing Network (SON) for the small base station. There is provided a small base station including: a server configured to receive a session establishment request message from a control unit, and to generate a session establishment request event; a message conversion engine configured to receive, after a session with the control unit is established, an information request message from the control unit, to analyze the information request message to provide the results of the analysis, and to convert response information that is to be transmitted to the control unit, into a format of a predetermined message; and a session manager configured to manage the session with the control unit in response to the session establishment request event, and to provide the response information corresponding to the results of the analysis. | 06-13-2013 |
20130150023 | HANDOVER CONTROLLING METHOD, OPERATING METHOD OF WIRELESS COMMUNICATION TERMINAL, AND STATION - Disclosed is a handover controlling method in which a station controls a handover of user equipment. The handover controlling method includes receiving a handover request including location information from the user equipment; and comparing the location information with handover histories previously executed at the station to control a handover of the user equipment according to a comparison result. | 06-13-2013 |
20130150042 | OPERATING METHOD OF CSG FEMTO BASE STATION, HANDOVER METHOD OF HANDOVER TO CSG FEMTO BASE STATION AND MANAGING METHOD OF MANAGING INFORMATION OF NEIGHBORING CSG FEMTO CELL - Disclosed is an operating method of a femto base station which includes broadcasting a plurality of public land mobile network (PLMN) identities; broadcasting a plurality of closed subscriber group (CSG) identities correlated with the plurality of PLMN identities; and establishing wireless communication with user equipment based on the broadcasted PLMN and CSG identities. | 06-13-2013 |
20130150057 | METHOD OF ASSIGNING PHYSICAL LAYER CELL IDENTITY OF FEMTOCELL BASE STATION - Provided is a method of assigning a physical layer cell identity (PCI) to a femtocell base station. The method includes obtaining location information from a femtocell base station and storing the location information, a first step of determining whether a PCI does not collide and is not confused with PCIs of base stations present in an area having a radius of a first multiple of a the femtocell radius and a second step of determining whether a PCI does not collide and is not confused with PCIs of base stations present in an area having a radius of a second multiple of the femtocell radius when a PCI does not collide and is not confused with PCIs of base stations is not found in an area having a radius of a first multiple of the femtocell radius. | 06-13-2013 |
20130150127 | WIRELESS COMMUNICATION BASE STATION HAVING DYNAMIC CELL STRUCTURE - Disclosed is a wireless communication base station which includes a plurality of radio units configured to transmit and receive a radio signal; and a digital unit connected to the plurality of radio units via cables and configured to operate a communication protocol. The digital unit controls the plurality of radio units according to a communication environment to be switched into a merge state in which the plurality of radio units forms a cell, or an independent state in which the plurality of radio units forms different cells, respectively. | 06-13-2013 |
20130157642 | EFFECTIVE ENERGY SAVING METHOD OF NEXT GENERATION MOBILECOMMUNICATION - Disclosed is an operating method of a base station which includes searching user equipment, having a machine to machine (hereinafter, referred to as M2M) communication function, from user equipment under communication; sending an M2M call setup request to the searched user equipment; sending a handover call setup request to the remaining user equipment from among the user equipment under communication; and entering a power-saving mode. | 06-20-2013 |
20130157643 | SMALL CELL BASE STATION MANAGING SYSTEM AND METHOD OF MANAGING SMALL CELL BASE STATION - Disclosed is a small cell base station managing method of a small cell base station managing system which manages a plurality of small cell base stations. The small cell base station managing method includes receiving a reconfiguration request; selecting a radio access technology (hereinafter, referred to as RAT) of a selected small cell base station according the reconfiguration request; and requesting the selected small cell base station to operate using the selected RAT. | 06-20-2013 |
20130157712 | METHOD OF MANAGING MOBILITY USING COORDINATED MULTIPLE POINT COMMUNICATION - Provided is a method of managing mobility of a user equipment. The method includes: establishing by a first base station a communication with the user equipment; transmitting by the first base station a Coordinated Multiple Point (CoMP) addition request to a second base station; establishing by the first and second base stations a CoMP communication with the user equipment according to the CoMP addition request; transmitting by the first base station an anchor cell change request to the second base station; and operating the second base station as an anchor cell of the CoMP communication according to the anchor cell switch request. | 06-20-2013 |
20140162603 | METHOD OF MANAGING SERVICE MODE OF FEMTO BASE-STATION AND ACCESS ALLOWANCE FOR TERMINAL - A method of managing a service mode of a femto cell base-station and access allowance for a terminal is disclosed. The method of managing access allowance includes receiving a first access allowance change request for a terminal, and transmitting a second access allowance change request for the terminal to a mobility management entity (MME) in response to the first access allowance change request. With the method of the example embodiments of the present invention, the service mode of the femto base-station and the access allowed terminal can be changed in real time according to a situation of the user. Accordingly, quality of service can be improved and efficient management of the femto base-station can be achieved through interference control between the macro base-station and the femto base-station. | 06-12-2014 |
20140162653 | INTER-CELL INTERFERENCE CONTROL METHOD AND APPARATUS - Disclosed is an inter-cell interference control method and apparatus. The inter-cell interference control method includes providing handover request information including interference information to a source base station, receiving handover completion information in accordance with the handover request information from at least one of the source base station and a target base station, and receiving interference control information in accordance with the interference information from the target base station. According to the present invention, inter-cell interference may be efficiently controlled, and overall performance of a network may be improved. | 06-12-2014 |
20140247788 | METHOD FOR PAGING INFORMATION IN CELLULAR SYSTEM - Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer. | 09-04-2014 |
20140295826 | METHOD AND APPARATUS FOR CONTROLLING TRAFFIC NEXT GENERATION MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for controlling traffic which can be applied to the next generation mobile communication system. The method includes determining whether or not a load state of a cell is greater than a threshold, determining whether or not UE capable of D2D communication is present in UEs connected to the cell if, as a result of the determination, it is determined that the load state is greater than the threshold, performing a D2D communication configuration on the UE capable of D2D communication, determining whether or not UE capable of handover is present in remaining UEs not capable of the D2D communication, and performing a handover communication configuration on the UE capable of handover. According to the present invention, a signaling overload due to the simultaneous handover of a plurality of UEs or congestion of traffic in a target cell can be prevented. | 10-02-2014 |
20140314049 | METHOD AND APPARATUS FOR DEVICE TO DEVICE DIRECT COMMUNICATION IN CLOUD BASE STATION SYSTEM - Disclosed are a D2D direct communication method and apparatus in a cloud base station system. The present invention includes receiving a measurement result, including information about D2D proximity or interference from other devices, from each of a first device and a second device, determining whether or not to admit D2D direct communication between the first device and the second device based on the measurement results, sending radio resource information to a second base station and receiving radio resource information of the second base station if it is determined that the D2D direct communication is admitted, negotiating radio resources, allocated for the D2D direct communication, with the second base station using the internal primitive, and allocating radio resources to the first device based on the negotiation. | 10-23-2014 |
20140317260 | METHOD AND APPARATUS FOR CONTROLLING CLOUD VIRTUAL BASE STATION - Disclosed are a method and apparatus for managing a cloud virtual base station system. The present invention includes setting initial resources and driving or downloading an execution file or environment file of the cloud virtual base station system and monitoring or managing a state for a failure, radio resources, or the execution file or the environment file of the cloud virtual base station system. | 10-23-2014 |
20150017983 | METHOD AND SYSTEM FOR PROVIDING PHYSICAL CELL IDENTITY ASSIGNMENT IN HETEROGENEOUS NETWORKS - A method of providing a physical cell identity (PCI) assignment by a management server for small-cell base stations (BSs) in a heterogeneous network environment includes setting a location coordinate and radius for the small-cell BSs; grouping every first preset number of small-cells together to define one femto zone; constructing a location map for each femto zone; grouping every second preset number of femto zones to define one femto group; and constructing a location map for each femto group. | 01-15-2015 |