Patent application number | Description | Published |
20080214193 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING INFORMATION USING RANDOM ACCESS PROCEDURE IN MOBILE COMMUNICATION SYSTEM - Disclosed is a method and an apparatus for transmitting and receiving additional information through a random access procedure by mapping at least one additional information element to random access codes to be used in a random access procedure between a UE and an ENB in a mobile communication system. According to the method, a random access code selected based on additional information to be transmitted and a triggering cause of the random access procedure is transmitted from the UE to the ENB. Each random access code is differently mapped to at least one additional information element according to a class of a cause for which a corresponding random access procedure is triggered, and the additional information elements are mapped to different ranges of random access codes according to the classes of the cause. | 09-04-2008 |
20080291874 | HANDOVER APPARATUS AND METHOD IN A HETEROGENEOUS WIRELESS COMMUNICATION SYSTEM - Provided is a handover method, in which a call manager of a network having a Circuit Switching (CS) network, a Long Term Evolution (LTE) network, and an Internet Protocol Multimedia Subsystem (IMS) network, provides handover, from the LTE network to the CS network, to a terminal that uses one radio channel. The handover method includes upon receiving a request for handover from the terminal via a node of the LTE network, establishing a line to a Mobile Switching Center (MSC) of the CS network; sending, to the call manager, a request for a change in a session to another party's terminal in communication with the terminal, to establish an Internet Protocol (IP) bearer between the call manager and the other party's terminal; and sending a handover command to the terminal during the establishment of an IP bearer, to establish a radio channel to the base station of the CS network. | 11-27-2008 |
20080293376 | METHOD AND SYSTEM FOR MANAGING MOBILITY OF AN ACCESS TERMINAL IN A MOBILE COMMUNICATION SYSTEM USING MOBILE IP - A method for managing mobility of an AT in a mobile communication system using Mobile IPv4. The AAA and the AT generate a first key for mutual authentication between the AT and a HA, and the AAA and the AG generate a second key for mutual authentication between the AG and the HA. The AG generates a third key for mutual authentication between the AG and the AT. The AT acquires a CoA that it will use in a foreign network. The AT sends an RRQ message to the AG. The AG verifies the RRQ message received from the AT, using a third authentication key. The AG then sends to the HA an RRQ message. The HA verifies the AT and the AG, and allocates an HoA of the AT. The HA sends an RRP message including the allocated HoA of the AT in response to the RRQ message. | 11-27-2008 |
20080317064 | System and method to enable combination of network controlled mobility and ue controlled mobility between different IP versions - The present invention provides session continuity when a User Equipment (UE) moves from one network to another network. A method and system for providing access to nodes supporting, for example, both Internet Protocol Version 4 (IPv4) and Internet Protocol Version (IPv6) on a network supporting only one of the IP versions are provided. In addition, both network based mobility and UE based mobility mechanisms are supported to allow a UE supporting dual stack mobility access to a network supporting only one of IPv4 or IPv6. The invention provides for a reduction of header overhead and signaling overhead. | 12-25-2008 |
20090005048 | APPARATUS AND METHOD FOR CALL HANDOVER BETWEEN PACKET NETWORK SYSTEM AND CIRCUIT NETWORK SYSTEM - A method and apparatus for performing handover on a voice call between a packet network system and a circuit network system is provided. Considering a communication environment where a UE cannot simultaneously use radio resources of both the next generation mobile communication system (LTE) and the legacy mobile communication system (e.g., GSM/WCDMA), the present invention proposes an SCSE for performing signal translation between the packet switched network and the circuit switched network and anchoring a voice call in the application level, and supports a continuous voice call using the SCSE. | 01-01-2009 |
20090047951 | METHOD AND APPARATUS FOR REGISTERING LOCATION OF TERMINAL IN PACKET-SWITCHING DOMAIN - A method and apparatus for registering the location of a terminal in a PS domain in a mobile communication network are provided, in which the terminal transmits a request message requesting registration of the location of the terminal to an MME of the mobile communication network, receives from the MME a response message including an eMSC indicator indicating an eMSC connected to the MME from among a plurality of eMSCs, and registers the location of the terminal to the eMSC indicated by the eMSC indicator included in the response message if the eMSC indicator included in the response message is different from an eMSC indicator stored in the terminal. | 02-19-2009 |
20090213814 | METHOD AND APPARATUS FOR PROVIDING UPLINK PACKET DATA SERVICE IN ASYNCHRONOUS WCDMA SYSTEM - Disclosed is a method and apparatus for providing uplink packet data services through an E-DCH in an asynchronous WCDMA system. A transport block size (TBS) for transmitting uplink transport channel data is determined. A combination of a spreading factor and a modulation scheme for uplink channel data transmission, corresponding to the determined TBS, is selected according to transmittable physical channel data bit sizes and puncturing limit values. The TBS is transmitted by incorporating it into control information of the uplink transport channel data. The modulation scheme and spreading factor combination is determined based on a physical channel data bit size that maximizes transmission efficiency and minimizes the number of punctured bits, without requiring an additional physical channel in transmitting the uplink data having the TBS. This method maximizes uplink transmission efficiency to save transmission resources and reduces signaling overhead required to transmit E-DCH control information. | 08-27-2009 |
20090285157 | METHOD AND APPARATUS FOR PROVIDING VOICE CALL IN MOBILE COMMUNICATION SYSTEM AND SYSTEM THEREOF - A system is provided that provides a voice call service over a Circuit Switching (CS) domain to a User Equipment (UE) that was receiving a service in a Packet Switching (PS) domain. A Mobile Management Entity (MME) sends a paging message to the UE to provide a service in the CS domain. The MME sends a suspend request message requesting suspension of the service being provided to the UE in the PS domain, upon receiving a report message indicating that the UE has switched to the CS domain. A gateway suspends the service in the PS domain upon receiving the suspend request message from the MME. | 11-19-2009 |
20100111041 | COMMUNICATION SYSTEM AND DATA TRANSMISSION METHOD THEREOF - A communication system and data transmission method thereof are provided. The method includes adding an end marker to the end of source data and transmitting the source data and the end marker for a Packet data network GateWay (PGW) to a source evolved Node B (eNB) if a handover is carried out from the source eNB to a target eNB while the PGW is transmitting the source data to the source eNB, forwarding the source data and the end marker from the source eNB to the target eNB, transmitting target data immediately following the source data from the PGW to the target eNB, and transmitting the source data and the target data, which is classified into the source data by the end marker and immediately follows the end of the source data, from the target eNB to user equipment. | 05-06-2010 |
20100190500 | SYSTEM AND METHOD OF PROVIDING USER EQUIPMENT INITIATED AND ASSISTED BACKWARD HANDOVER IN HETEROGENEOUS WIRELESS NETWORKS - The present invention relates to the field of mobility in heterogeneous wireless networks. In particular, the invention proposes a system and method of providing User Equipment (UE) initiated and assisted backward handover in the heterogeneous wireless networks. Depending on certain criteria, the UE may decide that if it needs a handover from a serving network to a target network. The UE initiates the backward handover by sending handover request message to the target network through the serving network. The serving network checks for the capabilities of the UE and authorizes the backward handover. The target network prepares for the backward handover and informs the UE when the target network is ready. The UE then starts the handover procedure. | 07-29-2010 |
20100210267 | REDIRECTION METHOD OF FEMTO CELL AND COMMUNICATION SYSTEM BASED THEREON - A redirection method of a femto cell is provided together with a communication system based thereon. A serving gateway, connected with a specific femto cell, or an additional server determines whether there is a need for a redirection of the femto cell by using a load condition of the serving gateway or a target gateway. If the redirection is determined, the femto cell receives redirection instructions from the serving gateway to the target gateway and then the redirection is performed. Since the femto cell is redirected from the overloaded femto gateway to another femto gateway, the femto cell can continuously provide a communication service to user terminals. | 08-19-2010 |
20100210268 | HANDOVER METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM INCLUDING FEMTO CELLS - A handover method and apparatus for facilitating a handover of a user equipment to a femto cell in a wireless communication system supporting both the femto and macro cells. When a handover condition is detected, the user equipment acquires identity information of a target femto cell base station from system information transmitted by the target femto cell base station, decides whether to handover to the target femto cell base station, based on the identity information; and transmits a measurement report message including the identity information to a serving base station of the user equipment, when the handover is to be made. | 08-19-2010 |
20100220717 | Method and apparatus for controlling rate of voice service in a mobile communication system supporting voice service via packet network - A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC. | 09-02-2010 |
20100234017 | Apparatus and method for controlling UE supporting dual mode - A method and an apparatus control a UE that supports a dual mode for controlling power consumption. A wireless local area network (WLAN) modem of a user equipment (UE) automatically turns on when the UE detects that the UE has entered into an area (e.g. home) that employs a home network including a femto Node B and a WLAN access point (AP). The method and apparatus may also determine whether a femto identifier received from a Node B of a home network is an identifier registered in a WLAN turn-on list stored in the UE. If the femto identifier is registered in the WLAN turn-on list, the WLAN modem of the UE is turned on. | 09-16-2010 |
20100234023 | ACCESS CONTROL METHOD USING FEMTO BASE STATION AND COMMUNICATION SYSTEM THEREFOR - A communication system including a femto base station and a method for controlling access of a User Equipment (UE) in the communication system are provided. The method includes receiving a service request message from the UE and transmitting the service request message to a core network entity within a core network, receiving, from the core network, UE information and Local BreakOut (LBO) service information regarding the UE which is used to provide an LBO service to the UE, and providing the LBO service to the UE using the received information. Thus, a core network controls access of the UE so that the UE can directly access an Internet network through the LBO. | 09-16-2010 |
20100246497 | SELECTIVE COMBINING METHOD AND APPARATUS IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing duplicate avoidance of broadcast data packets in a (UE). The includes receiving a broadcast data packet from a plurality of cells; storing, if a sequence number of the received broadcast data packet does not fall within a reception window, the broadcast data packet in a buffer and updating the reception window based on the sequence number; determining, if the sequence number of the received broadcast data packet falls within the reception window, whether a broadcast data packet having the sequence number has previously been stored in the buffer; discarding the broadcast data packet, if the broadcast data packet has previously been stored in the buffer; and storing the broadcast data packet in the buffer, if the broadcast data packet has not previously been stored in the buffer. | 09-30-2010 |
20100265921 | METHOD AND APPARATUS FOR PROVIDING UPLINK PACKET DATA SERVICE IN ASYNCHRONOUS WCDMA SYSTEM - A method and apparatus are provided for providing a packet data service in an asynchronous Wideband Code Division Multiple Access (WCDMA) system. A combination of physical channel elements are determined based on combinations of physical channel elements and a first Puncturing Limit (PL). Packet data is transmitted using the determined physical channel elements. A second PL is used for a maximum combination of physical channel elements when no combination of physical channel elements are available to satisfy the first PL. | 10-21-2010 |
20100272050 | METHOD AND APPARATUS FOR MANAGING USER EQUIPMENT HISTORY INFORMATION IN WIRELESS COMMUNICATION NETWORK - A method and an apparatus for managing User Equipment (UE) history information are provided. The method for managing user equipment history information in a wireless communication network includes determining if a recording event occurs when the user equipment enters into an idle mode; recording information about the recording event in idle mode user equipment history information when the recording event occurs; and transmitting the recorded idle mode user equipment history information to a base station when the user equipment accesses the base station. | 10-28-2010 |
20100278108 | METHOD AND APPARATUS FOR SUPPORTING LOCAL IP ACCESS IN A FEMTO CELL OF A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for providing a local IP access service to a User Equipment (UE) attached to a femtocell including a Packet Data Network (PDN) gateway function in a wireless communication system. A method includes receiving a service request from a User Equipment (UE), transmitting an initial UE message including information on a local gateway to a Mobility Management Entity (MME), storing bearer information carried in an initial context setup request transmitted by the MME, receiving a Packet Data Network (PDN) connectivity request from the UE, forwarding the PDN connectivity request to the MME, receiving a create session request from the MME, and establishing a radio bearer with the local gateway, the local gateway being co-located with the femtocell. | 11-04-2010 |
20110090858 | METHOD AND APPARATUS FOR ALLOCATING COMMUNICATION RESOURCES USING VIRTUAL CIRCUIT SWITCHING IN A WIRELESS COMMUNICATION SYSTEM AND METHOD FOR TRANSMITTING AND RECEIVING DATA IN A MOBILE STATION USING THE SAME - A method and apparatus using Virtual Circuit Switching (VCS) in a new scheme are provided for allocating and employing resources by combining Circuit Switching (CS) and Packet Switching (PS), in which a base station allocates resources of a dedicated channel using the CS to a user and then transmits data on the dedicated channel. When data is not transmitted to the user, the base station allocates the allocated dedicated channel resources for resources of a shared channel and transmits data of a different user. Therefore, system capacity can be increased and a waste of communication resources can be minimized in a wireless communication system for frequently transmitting a small amount of traffic that is sensitive to a delay time. | 04-21-2011 |
20110110379 | METHOD AND APPARATUS FOR SETTIG UP UPLINK COMMON BEARER IN WIRELESS COMMUNICATION NETWORK - A method and apparatus for setting up an UpLink common bearer shared by a plurality of User Equipments (UEs) in a wireless communication network is provided. The apparatus includes a Serving GateWay (S-GW) for receiving a group identifier of a UE from a Mobility Management Entity (MME), sending a create bearer request message including the group identifier to a Packet Data Network (PDN) GateWay (P-GW), receiving a create bearer response message including UL common S | 05-12-2011 |
20110149916 | METHOD AND APPARATUS FOR SCHEDULING UPLINK RATES ADAPTIVELY TO FAST RATE RAMPING IN A PACKET COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting uplink rate assignment information for an uplink data transmission to a User Equipment (UE) by a Node B in a mobile communication system. The uplink rate assignment information to be transmitted for each UE is determined. The uplink rate assignment information is transmitted to the UE. The uplink rate assignment information is attached with a UE ID-specific Cyclic Redundancy Check (CRC) of the UE when directly indicating an uplink rate grant for the UE. | 06-23-2011 |
20110183675 | COMMUNICATION SYSTEM FOR HANDOVER TO FEMTO BASE STATION AND METHOD FOR THE SAME - A wireless communication system for performing a handover to a femto base station is provided. The system includes user equipment, a femto subscriber information storage, a core network entity or a macro base station or a serving base station. The femto subscriber information storage stores a list of femto base stations that allows the access of user equipment, i.e., an accessible list. The core network entity or the macro base station receives and stores the accessible list. When any of the user equipment requests a handover toward a femto base station as a target base station, and the target base station is included in the accessible list stored, the core network entity or the macro base station requests a handover toward the target base station. A method for performing a handover to the core network entity and the macro base station is also provided. | 07-28-2011 |
20110199898 | METHOD AND APPARATUS FOR CONTROLLING NETWORK ACCESS OF UE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for controlling network access of a User Equipment (UE) based on the network's load and time tolerance (delay tolerance) are provided. A network access method for a terminal in a wireless communication system includes sending an access request message containing a time-tolerant indicator at a predefined time, determining, when a reject message is received, a cause value and a hold time contained in the reject message, and re-sending the access request message after the hold time elapses. | 08-18-2011 |
20110211559 | DATA FORWARDING METHOD AND SYSTEM FOR VERTICAL HANDOVER - A data forwarding method and system is provided for avoiding data loss during a vertical handover by forwarding data through an IP tunnel established between a newly introduced network entity called a Data Forwarding Function of the serving network and a Forward Attachment Function of a target network. A data forwarding method of a data forwarding unit located in a serving network for a vertical handover according to the present invention includes receiving an address of a forwarding attachment unit located in a target network and a data forwarding preparation request that are transmitted by a user equipment; establishing an Internet Protocol (IP) tunnel to the forwarding attachment unit according to the data forwarding preparation request; and forwarding, when a vertical handover is initiated, handover packets to the forwarding attachment unit through the IP tunnel. | 09-01-2011 |
20110235605 | RADIO RESOURCE ALLOCATION METHOD AND DEVICE OF HENB IN EVOLVED PACKET SYSTEM - A session-adaptive radio resource allocation device and method for an EPS is provided. A resource allocation method for a wireless communication includes transmitting, at a Home evolved Node B (HeNB) received a downlink packet destined to a User Equipment (UE) in idle mode, a paging message including a local indicator to the UE; transmitting a service request message including the local indicator from the UE to a Mobility Management Entity (MME); transmitting a Initial Context Setup (ICS) message including an uplink Tunnel Endpoint Identifier (TEID) from the MME to the HeNB; and establishing a radio bearer for a local breakout session between the HeNB and UE and a radio bearer corresponding to an Evolved Packet System (EPS) bearer context of an internal Serving Gateway/Packet Data Network Gateway (SGW/PGW) of the HeNB using the TEID). | 09-29-2011 |
20120184259 | APPARATUS AND METHOD FOR SUPPORTING QoS SERVICE OF APPLICATION IN WIRELESS COMMUNICATION SYSTEM - A method and a system are capable of supporting a Quality of Service (QoS) service in a wireless communication system. The method for supporting the QoS service includes checking a service capability of an application; when the application provides a QoS service, requesting QoS configuration to a QoS server; and when receiving a QoS configuration response signal from the QoS server, checking whether QoS of the application is allocated, in the QoS configuration response signal. | 07-19-2012 |
20120185912 | SYSTEM AND METHOD FOR GRANTING AUTHORIZATION OF APPLICATION IN WIRELESS COMMUNICATION SYSTEM - A system and a method for grant authorization of an application in a wireless communication system. A method for being assigned authorization of an application in a mobile station includes when an application is installed, transmitting permission request information for at least one authorization required by the application, to a server; when receiving a response message from the server, identifying authorization assigned to the application in the response message; and controlling the application using the assigned authorization. | 07-19-2012 |
20120195278 | METHOD AND APPARATUS FOR SCHEDULING ASSIGNMENT OF UPLINK PACKET TRANSMISSION IN MOBILE TELECOMMUNICATION SYSTEM - Methods and apparatus are provided for communication between a User Equipment (UE) and a Node B in a communication system. The UE generates a Media Access Control-Protocol Data Unit (MAC-PDU) including scheduling information having information representing an amount of packet data to be transmitted. The MAC-PDU including the scheduling information is transmitted to the Node B. The information representing the amount of packet data exists per priority queue. | 08-02-2012 |
20120196566 | METHOD AND APPARATUS FOR PROVIDING QOS-BASED SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for providing a Quality of Service (QoS)-based service in a wireless communication system are provided. The method includes providing a Mobile Station (MS) with at least one QoS plan indicating a price policy for a QoS acceleration service having a higher QoS than a default QoS designated for a user of the MS in response to a request from the MS, providing the MS with an authorized token and a QoS quota based on a selected QoS plan in response to a purchase request of the MS, providing the MS with service contents selected by the user through a radio bearer for the QoS acceleration service, notifying the MS, if a usage of the QoS acceleration service reaches a threshold, of an impending expiration of the QoS acceleration service, and notifying the MS of the expiration of the QoS acceleration service. | 08-02-2012 |
20120196599 | AREA-BASED ACCESS CONTROL METHOD FOR TERMINALS WHICH CARRY OUT M2M COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM - A regional access control method is provided in a Mobility Management Entity (MME) for network access for a User Equipment (UE) that performs Machine-to-Machine (M2M) communication. An access request message and location information of the UE are received from a base station. The access request message is transmitted to the MME in response to reception of the access request message at the base station from the UE. A location of the UE that is determined based on the location information of the UE, is registered in a Home Subscriber Server (HSS). An allowed list of the UE is obtained from the HSS. It is determined whether the location information of the UE is registered in the allowed list. | 08-02-2012 |
20120203894 | APPARATUS AND METHOD FOR PROVIDING PROFILE OF TERMINAL IN COMMUNICATION SYSTEM - An apparatus and a method support Machine to Machine (M2M) communication in a communication system. A method for providing an M2M service includes determining at least one of identifier (ID) information of an M2M device, ID information of an M2M Service Provider (MSP), and service type information of the M2M device to provide the M2M service. The method also includes determining a profile of the M2M device using the at least one information determined. The method further includes transmitting the profile of the M2M device to an Authentication, Authorization and Accounting (AAA) server. | 08-09-2012 |
20120275418 | METHOD OF TRANSMITTING SCHEDULING REQUEST IN MOBILE COMMUNICATION SYSTEM AND TERMINAL APPARATUS FOR THE SAME - A method is provided for transmitting an uplink scheduling request in a mobile communication system. A terminal compares a lowest priority for permitting transmission of the scheduling request notified from a radio resource controlling node with a highest priority among service priorities corresponding to generated data or control signals, if data or control signals to be transmitted in the uplink are generated from an upper layer. The terminal transmits the scheduling request to the radio resource controlling node to thereby request the radio resource controlling node to allocate radio resources for transmitting the data or control signals, when the highest priority is greater than or equal to the lowest priority. | 11-01-2012 |
20120276913 | METHOD AND APPARATUS FOR TRANSMITTING DATA IN A WIRELESS COMMUNICATION NETWORK SYSTEM - A method and an apparatus for transmitting data in a wireless communication network are provided. A base station having information of an idle mode user equipment transmits a connecting operation mode to the user equipment when the idle mode user equipment is connected to the base station. The user equipment transmits a small amount of data together with a connection request completion message to the base station. The base station transmits, over a network, the data received from the user equipment, without being interlinked with a mobility management entity, and the user equipment returns back to an idle operation mode after data transmission. Thus, the overhead required to support signaling of the base station for acquiring context information of the user equipment can be reduced in order to provide the user equipment with an efficient data transmission environment. | 11-01-2012 |
20120300685 | METHOD AND APPARATUS FOR SUPPORTING DISCONTINUOUS RECEPTION OPERATION IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN. | 11-29-2012 |
20130003656 | METHOD AND APPARATUS FOR GENERATING ALLOWED LIST BASED ON REGIONS FOR WIRELESS TERMINAL IN COMMUNICATION SYSTEM - A method and system for generating an allowed list based on regions for a wireless terminal are disclosed. The method generates an allowed list based on regions to control network access of a stationary wireless terminal, and includes: sending, by the wireless terminal, an attach request to a network; creating, by the network, an allowed list that contains information on regions in which the wireless terminal is permitted to access the network; and controlling, by the network, network access of the wireless terminal on the basis of the allowed list. Hence, the allowed list, which stores information regarding regions in which the MTC terminal 110 is permitted to access the network, may be dynamically created by the terminal or the MME. | 01-03-2013 |
20130042304 | SYSTEM AND METHOD FOR HANDOVER BETWEEN INTERWORKING WLAN AND EUTRAN ACCESS SYSTEMS - This invention relates to the area of Mobility and Handover between heterogeneous wireless networks. The scope of the invention also covers the case when the UE is capable of accessing both the WLAN and EUTRAN access systems simultaneously and also the case where the UE is not capable of accessing both the WLAN and EUTRAN access systems simultaneously. This invention provides a system and method to perform Mobility between the access systems with optimized authentication procedure using security context transfer between the access systems and also minimize the data loss by buffering the data during the handover. More specifically, this invention provides a system and method to support handover between the I-WLAN and the EUTRAN access systems. | 02-14-2013 |
20130044724 | METHOD FOR ESTABLISHING A CONNECTION BETWEEN A NODE OF A COMMUNICATION SYSTEM AND A NODE OF A DATA SERVICE NETWORK IN A WIRELESS COMMUNICATION SYSTEM - A method for establishing a connection between a mobility management entity and a node of a network includes acquiring, at the mobility management entity, an address of the node, transmitting a session creation request from the mobility management entity to a serving gateway, receiving, at the mobility management entity, a session creation response from the serving gateway in response to the session creation request, the session creation response including uplink bearer information for data transmission to the serving gateway and an address allocated to the mobility management entity by a packet data network gateway, transmitting, at the mobility management entity, downlink bearer information for data reception from the serving gateway to the serving gateway, and communicating, at the mobility management entity, with the node using the address of the mobility management entity and the address of the node according to the uplink bearer information and the downlink bearer information. | 02-21-2013 |
20130070731 | WIRELESS COMMUNICATION SYSTEM AND METHOD FOR PERFORMING HANDOVER IN SUCH A SYSTEM - The present invention relates to a method and apparatus for performing handover in a wireless communication system, and the handover method of the present invention includes checking, when a Path Switch Request message associated with a terminal is received from a base station, whether a list of terminal security information values which has been saved exists; generating, when the list exists, a Path Switch Request acknowledge message including an unused terminal security information value selected form the list; and transmitting the Path Switch Request acknowledge message to the base station. Through this procedure, it is possible to reduce the terminal handover signal load generated by the base station. | 03-21-2013 |
20130079006 | WIRELESS COMMUNICATION SYSTEM AND METHOD FOR ESTABLISHING A CONNECTION BETWEEN USER EQUIPMENT AND A MOBILITY MANAGEMENT ENTITY THEREOF - The present invention relates to a wireless communication system and method for establishing connection between a User Equipment (UE) and a Mobility Management Entity (MME) in the wireless communication system in which the data-centric terminal requests the mobility management entity for attachment and checks, when the mobility management entity responds, data-centric features supported by the mobility management entity. According to the present invention, it is possible to connect the data-centric terminal to the mobility management entity supporting the data-centric features of the corresponding data-centric terminal efficiently in the wireless communication system. | 03-28-2013 |
20130094494 | Method And Apparatus For Interworking Voice And Multimedia Services Between CSI Terminal And IMS Terminal - A method and apparatus is provided for communication between a first terminal capable of using both a Circuit Switched (CS) call and an Internet Protocol Multimedia Subsystem (IMS) session, and a second terminal capable of using the IMS session, in a communication system supporting a Combined CS call and IMS session (CSI service). If the second terminal sends a Session Initiation Protocol (SIP) request (INVITE) message to originate a voice service or a multimedia service including the voice service with the first terminal, a CSI Application Server (AS) of an IMS domain managing the first terminal separates a voice service-related component included in the request message from a multimedia service-related component, and generates and sends first and second request messages to the first terminal. Upon receipt of first and second response messages corresponding to the first and second request messages from the first terminal, the CSI AS generates a combined response message and sends the combined response message to the second terminal. | 04-18-2013 |
20130095796 | METHOD AND SYSTEM FOR DELIVERING SMS (SHORT MESSAGE SERVICE) MESSAGES IN A MOBILE COMMUNICATION SYSTEM - A method and system for delivering data are provided. The method includes sending, by a User Equipment (UE), to an evolved Node-B (eNB) a service request message for requesting data when setting up Radio Resource Control (RRC) connection using a RRC connection complete message, sending, by the eNB, the received service request message to a Mobile Management Entity (MME) using an initial UE message, sending, by the MME, an ‘initial context setup for signaling’ message that does not include information about data bearers, to the eNB, upon receiving the initial context setup message, setting up, by the eNB, Access Stratum (AS) security with the originating UE and performing, by the originating UE, Non Access Stratum (NAS) security with the MME, and upon completion of the NAS security process with the MME, transmitting, by the originating UE, the data to the MME using an uplink NAS transport message. | 04-18-2013 |
20130142173 | METHOD AND APPARATUS FOR SETTING UP UPLINK COMMON BEARER IN WIRELESS COMMUNICATION NETWORK - A method and apparatus for setting up an UpLink common bearer shared by a plurality of User Equipments (UEs) in a wireless communication network is provided. The apparatus includes a Serving GateWay (S-GW) for receiving a group identifier of a UE from a Mobility Management Entity (MME), sending a create bearer request message including the group identifier to a Packet Data Network (PDN) GateWay (P-GW), receiving a create bearer response message including UL common S | 06-06-2013 |
20130242791 | METHOD AND APPARATUS FOR CONTROLLING THE TRANSMISSION POWER OF A BASE STATION IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for controlling transmission power of the base station in a wireless communication system and includes calculating signal-to-noise ratio of a target component carrier and recovering the signal-to-noise ratio to be equal to or greater than a threshold by increasing a transmission power to a predetermined level and requesting, when the signal-to-noise ratio is less than a predetermined threshold, a neighbor base station to decrease the transmission power. According to the present invention, it is possible to suppress the inter-cell interference and improve channel utilization efficiency, resulting in improvement of the throughput of the wireless communication system. | 09-19-2013 |
20130316674 | DEVICE AND METHOD FOR CONTROLLING CHARGING IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and device for controlling charging in a mobile communication system. The method for controlling charging in a mobile communication system is characterized by comprising the steps of: generating, by a service provider, a sponsor coupon to transmit to a terminal when a sponsor service request transmitted from the terminal is received; receiving, by the terminal, the sponsor coupon to transmit to an operator; setting, by the operator, a filtering and charging rule for sponsor traffic by using the sponsor coupon, and notifying the terminal; requesting, by the terminal, the sponsor service to the service provider again, and receiving a sponsor traffic service from the service provider; and charging, by the operator, the service provider for the sponsor traffic. | 11-28-2013 |
20140081529 | ACTIVE DOOR LOCK SYSTEM - An active door lock system allows a user to confirm a state of a child in a vehicle before opening a door by partially opening a window of the door in the case of sensing unlock of door lock from an outer side of the door in the state in which a child lock is set. | 03-20-2014 |
20140112255 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING STATUS REPORT COMPRISING RECEIVED STATUS OF PACKET DATA IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting packet data units Packet Data Units (PDUs) at a PDU transmitter in a communication system is provided. The method includes transmitting a first PDU comprising a PDU header and a data portion, receiving Negative Acknowledgement NACK information for the first PDU, segmenting the first PDU to form one or more PDU segments if a size of a second PDU for retransmission is smaller than a size of the first PDU, wherein each of the one or more PDU segment comprises a PDU segment header and a data portion, and transmitting the one or more PDU segment to a PDU receiver. | 04-24-2014 |
20140140511 | METHOD AND APPARATUS FOR UPDATING A GROUP KEY IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and apparatus for updating a key for encrypting multicast data in a wireless communication system. The method of the present invention is characterized by comprising: an information receiving step of receiving information on a group entry time and a group exit time from users who have newly entered an arbitrary group including at least one subgroup; a grouping step of grouping the users using the information on the group entry time and the group exit time; and a key transmission step of either transmitting, to the newly-entered users, keys related to the group and the subgroups, or updating, for the remaining users of the subgroups, both the key related to the subgroup to which the user exiting the group belongs and the key of the group and then transmitting the updated keys to the users of the subgroups. | 05-22-2014 |
20140149745 | METHOD AND APPARATUS FOR MANAGING GROUP KEY FOR MOBILE DEVICE - Provided is a method for managing a group key in a key distribution center. The method includes: receiving a key request from a mobile device; generating a private key for the mobile device using information about a withdrawal time included in the key request; generating a public key and a verification key for the mobile device; and transmitting at least one key including the generated key to the mobile device. | 05-29-2014 |
20140204886 | METHOD AND APPARATUS FOR CONTROLLING RATE OF VOICE SERVICE IN A MOBILE COMMUNICATION SYSTEM SUPPORTING VOICE SERVICE VIA PACKET NETWORK - A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC. | 07-24-2014 |
20140233471 | METHOD AND APPARATUS FOR INITIATING COMMUNICATIONS ON A SHARED CHANNEL IN A MOBILE COMMUNICATIONS SYSTEM - A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a Node B, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal. When the delay duration has elapsed, the user equipment monitors the downlink during a valid period and determines whether a downlink signal responding to the uplink signal is received in a transmission time interval within the valid period. When the downlink signal is received in the valid period, the user equipment transmits and receives data on the shared channel. | 08-21-2014 |