Abstract: Provided is an apparatus and method for providing a Multicast/Broadcast Service MBS service in a broadband wireless communication system. In a method for receiving an MBS service at a user terminal in a broadband wireless communication system, an MBS request message is transmitted to a content server, and an MBS response message including broadcast information is received from the content server. An MBS connection with a base station is established for transmission of contents.

Abstract: A method for providing service in a communication system. A base station (BS) receives a request message for requesting a service from a mobile station (MS) located in a first service zone; and transmits to the MS a response message including information on a BS located in a service zone supporting the requested service. The MS transmits a request message for requesting a service to the BS located in the first service zone, and receives a response message including information on a BS located in a service zone supporting the requested service, from the BS located in the first service zone.

Abstract: A method and apparatus are provided for managing session infonnation of an access tenminal (AT) that has moved from a source subnet to a target subnet in a mobile communication system for high-speed data transmission. The AT transmits a message with a prior universal access terminal identifier (UATI) to a target access network (AN) to perfonm session negotiation with the target AN of the target subnet. The target AN transmits a message with the prior UATI to a target packet control function (PCF) to request retrieval of session infonnation of the AT. The target PCF sends a request for transmission of prior session information for the AT to a source PCF of the source subnet, found using the prior UATI. The target PCF receives the prior session information from the source PCF and retrieves the session information of the AT using the received prior session information.

Abstract: A method of providing LBS (Location-Based Services) in a mobile communication system is provided. A Mobile Station (MS) entering an incoming call rejection service area is precluded from receiving incoming calls. When a call connection to the MS is requested, the call connection is blocked from the MS, and a call connection unavailable message is transmitted to a calling MS.

Abstract: An encryption processing system and method are provided in a mobile communication system having an AT, an AN for sending packet data to the AT on a radio channel, a PCF for controlling the AN, and a PDSN for sending packet data to the AN through the PCF. The AT encrypts a packet generated upon user request and sends the encrypted packet on a radio channel. If it is indicated that the packet received from the AT was encrypted, the AN requests encryption information of the AT to the PCF and decrypts the encryption information received from the PCF. Upon receipt of the request of the encryption information of the AT from the AN, the PCF determines whether the AT is authenticated, extracts the encryption information of the AT if the AT is authenticated, and sends the extracted encryption information to the AN.

Abstract: Disclosed is a method for providing a broadcast service in a mobile communication system using code division multiple access (CDMA) technology. The novel method controls transmission of broadcast service data according to base station areas by registering a mobile station with a broadcast service. For that purpose, the mobile station requests an authentication server to authenticate a desired broadcast service, and registers the authenticated broadcast service in a packet data serving node via a base station so that the base station and the packet data serving node can set up a transmission path for the broadcast service. The method increases the efficiency of base station resources by controlling transmission times of base stations, and the packet data serving node can perform accounting on the broadcast service of the mobile station.

Abstract: Provided is an apparatus and method for setting up aquality-of-service (QoS) in a mobile communication system. A mobile terminal (MT) generates a resource reservation message including requested QoS information and packet filtering information for a predetermined service. A packet data service node (PDSN) stores the QoS information and the packet filtering information. Upon receiving packet data corresponding to the stored QoS information from the external network, the PDSN sends a request for a new QoS setup to the AN. An access network (AN) determines a granted QoS to be applied to a wireless session and sends a request for new QoS setup to the MT. If the MT grants the new QoS setup, the MT sends a response to the new QoS setup request from the MT to the PDSN via the AN.

Abstract: Disclosed is a Quality-of-Service (QoS) Support method in a mobile communication system including an access terminal, an access network for performing packet data communication with the access terminal, a packet control function for controlling transmission and reception of packet data between the access network and the access terminal, and a packet data service node for exchanging packet data with the packet control function. The access terminal maps a requirement based on an application characteristic to an IP QoS parameter, generates a resource reservation protocol message, and transmits the resource reservation protocol message to the packet data service node. The packet data service node maps IP QoS information to be transmitted to the access terminal to QoS information needed in the access network, and transmits the mapping result to the access network via the packet control function.

Abstract: Packet processing method and apparatus are provided in a portable Internet system, in which a base station of the portable Internet system is designed to have a number of connection processors and connection controllers. The number of mobile subscriber stations to which a single base station can provide service can be increased, and information necessary for providing a service to the mobile subscriber stations can be efficiently managed.

Abstract: The invention relates to a message processing method and apparatus in a portable Internet system, in which a base station of the portable Internet system is designed to have a number of connection processors and connection controllers. This can increase the number of mobile subscriber stations that a single base station can provide a service and efficiently manage information necessary for providing a service to the mobile subscriber stations.

Abstract: In response to a BCMCS service request from a mobile station, a base station separately informs the mobile station whether the requested BCMCS service is available. Thus, the base station can include only broadcast channel information necessary for actual broadcast in a broadcasting overhead message, and if the BCMCS service is stopped or unavailable, the base station can order the mobile station to interrupt the BCMCS service, thereby reducing the load on system resources.

Abstract: Disclosed is a Quality-of-Service (QoS) Support method in a mobile communication system including an access terminal, an access network for performing packet data communication with the access terminal, a packet control function for controlling transmission and reception of packet data between the access network and the access terminal, and a packet data service node for exchanging packet data with the packet control function. The access terminal maps a requirement based on an application characteristic to an IP QoS parameter, generates a resource reservation protocol message, and transmits the resource reservation protocol message to the packet data service node. The packet data service node maps IP QoS information to be transmitted to the access terminal to QoS information needed in the access network, and transmits the mapping result to the access network via the packet control function.

Abstract: A system and method providing a BCMCS service at a handoff in a mobile communication system is provided. The mobile communication system includes an AT for receiving a BCMCS service, a source AN for providing the BCMCS service to the AT, and a PCF connected to a plurality of ANs, for constructing broadcasting BCMCS service data received from a higher-layer network in the form of packet data, and providing the packet data to a predetermined AN connected to the PCF. To implement a handoff for the AT, the PCF checks, upon receipt of a handoff request message from the AT through the source AN, the ID of a target AN and the ID of the BCMCS service set in the handoff request message, and sets up a BCMCS bearer for the BCMCS service with the target AN, if the target AN is one of the ANs connected to the PCF.

Abstract: A system and method for synchronizing Broadcast/Multicast Service (BCMCS) traffic in a mobile communication system connected to a BCMCS server. A Packet Data Service Node (PDSN) receives a BCMCS content frame from the BCMCS server, and transmits a corresponding Generic Routing Encapsulation (GRE) packet BCMCS content frame, including a sequence number and a timestamp value indicating when the GRE packet BCMCS content frame is transmitted, to Packet Control Functions (PCF) connected downstream of the PDSN. Each of the PCFs determines whether the GRE packet BCMCS content frame received from the PDSN is valid, based on the sequence number included therein. If the GRE packet BCMCS content frame is valid, the PCF transmits the frame to its lower nodes connected downstream of the PCF, while synchronizing the frame transmission, based on the timestamp value included in the frame.

Abstract: A method for registering Broadcast/Multicast Service (BCMCS) in a mobile broadcasting system including an access terminal, a BCMCS server for providing a BCMCS service to the access terminal, and a mobile communication system connected to the BCMCS server. The access terminal exchanges information, necessary for BCMCS setup, with a BCMCS controller connected to the BCMCS server during a state wherein a session to the mobile communication system is set up. Upon receiving a BCMCS overhead from an access network in the mobile communication system, the access terminal transmits a message, including BCMCS identification information for a desired BCMCS service, to the access network. Upon receiving the message, the access network transmits a BCMCS connect setup message to a packet control function in the mobile communication system.

Abstract: A system and method for de-registering a Broadcast/Multicast Service (BCMCS) in a high-rate packet data system including an access network (AN) for performing radio communication with an access terminal (AT), a packet control function (PCF) for processing packet data communication, and a packet data service node (PDSN) connected to a BCMCS contents server (CS) via a packet communication network is provided. In the system and method, the access network receives a de-registration message for a release request of a BCMCS service from the access terminal. The access network transmits a BCMCS release message including BCMCS information with a release request, to the packet control function. The packet control function transmits a BCMCS registration request message including the BCMCS information to the packet data service node. The packet data service node performs a release and accounting process on a corresponding BCMCS service based on the BCMCS information.

Abstract: Disclosed is a method for receiving an encrypted broadcasting service by an access terminal in a mobile communication system including an access node for providing a broadcasting service to the access terminal over a radio channel and a packet data service node for connecting the access node to a broadcasting server via a packet data network. The method includes receiving a mask parameter message including a mask value for reception of a desired broadcasting service, from the access node; receiving a broadcasting service packet including a masked seed and a broadcast security packet, from the access node over a radio broadcast channel; calculating a particular seed using the masked seed value and the mask value, and generating an encryption key using the calculated seed and a previously received broadcast access key; and decrypting the broadcast security packet using the encryption key.

Abstract: A broadcast service method and system for use in wireless communication system. The broadcast service method and system for a wireless communication system according to the present invention assigns individual unique BCMCS IDs to a plurality of BCMCS controllers, such that it can recognize a changed BCMCS controller within a cell in which an MS is located, BSPM (Broadcast Service Parameter Message) effectiveness, the BCMCS conversion, etc.

Abstract: A method of managing the session information of an AT in a CDMA2000 1xEV-DO system. In the 1xEV-DO system, a service system, having an SC/MM, is connected to a PDSN, a plurality of ANs are connected to the service system, and a plurality of ATs are capable of wireless communication with the ANs. In the session information managing method, an AN transmits to the SC/MM a session retrieve request message, upon receipt of a connection request message from the AT. The SC/MM then searches for session information of the AT and transmits to the AN a session retrieve response message including the session information. Upon receipt of the session retrieve response message, the AN transmits a connection response message to the AT.

Abstract: Disclosed is a method and system for providing a broadcast service to a mobile station over a radio channel in a mobile communication system. A base station determines whether a mask key is requested by a mobile station, based on a predetermined registration identifier included in a registration message received from the mobile station, and transmits a currently valid mask key only when it is determined that another mask key is requested by the mobile station. The base station transmits another mask key to be used next, or transmits another mask key to be used next, together with the currently valid mask key, if the registration message was received within a predetermined skew time before a lifetime of the currently valid mask key expires.