摘要:
In a communication system, second encryption information is generated using first encryption information when data to be transmitted is generated. The data is encrypted using the second encryption information and third encryption information. A signal including the encrypted data and the first encryption information is generated and transmitted.
摘要:
In a communication system, second encryption information is generated using first encryption information when data to be transmitted is generated. The data is encrypted using the second encryption information and third encryption information. A signal including the encrypted data and the first encryption information is generated and transmitted.
摘要:
Disclosed is a method and system by which a base station without a Global Positioning System (GPS) receiver acquires time synchronization in a Broadband Wireless Access (BWA) communication system. The method includes scanning neighbor base stations around a first base station and requesting time synchronization information from the scanned neighbor base stations by the first base station; receiving responses from predetermined neighbor base stations having already acquired time synchronization from among the neighbor base stations, the responses including time synchronization information of the predetermined neighbor base stations; and selecting a second base station from among the predetermined neighbor base stations and acquiring time synchronization based on the time synchronization information of the second base station.
摘要:
Method and system by which a base station without a Global Positioning System (GPS) receiver acquires time synchronization in a Broadband Wireless Access (BWA) communication system. The method includes scanning neighbor base stations around a first base station and requesting time synchronization information from the scanned neighbor base stations by the first base station; receiving responses from predetermined neighbor base stations having already acquired time synchronization from among the neighbor base stations, the responses including time synchronization information of the predetermined neighbor base stations; and selecting a second base station from among the predetermined neighbor base stations and acquiring time synchronization based on the time synchronization information of the second base station.
摘要:
A method for allocating resources by a Base Station (BS) in a wireless communication system is provided. The method includes determining use/nonuse of each of a plurality of Resource Blocks (RBs), which are allocated using a persistent allocation scheme, and transmitting resource allocation information indicating use/nonuse of each of the plurality of RBs to a plurality of Mobile Stations (MSs) according to a result of the determination.
摘要:
An apparatus and a method for providing a handover using an Mobile Station IDentifier (MS ID) in a wireless communication system are provided. In the method, at least one Base Station (BS) ID index assigned to a serving base station by at least one neighbor base station is confirmed. A target base station for a handover is confirmed. A temporary MS ID is formed using a BS ID index assigned to the serving base station by the target base station, and an MS ID index assigned to the mobile station by the serving base station. A network re-entry procedure with the target base station is performed using the temporary MS ID. Communication with the serving base station is performed until the network re-entry procedure with the target base station is completed.
摘要:
A method of operating a Base Station (BS) in a broadband wireless communication system to resume an extended real-time Polling Service (ertPS) is provided. The method of operating the BS includes detecting a codeword received through a Channel Quality Indicator (CQI) channel, and upon receiving a CQI CHannel (CQICH) codeword for requesting resumption of an extended real-time Polling Service (ertPS) connection from a Mobile Station (MS), allocating to the MS an uplink resource corresponding to the largest maximum sustainable traffic rate of at least one ertPS connec established to the MS.
摘要:
A method and apparatus for transmitting/receiving a connection identification (CID) in a communication system is provided. Upon detecting a need for its handover, a mobile station (MS) transmits a handover request message to a first base station (BS) in communication with the MS. Upon receiving the handover request message, the first BS transmits at least one CID for connection setup to a second BS to which the MS will perform handover, to the MS along with a handover response message in response to the handover request message. The MS receives the CID through the handover response message.
摘要:
A method for controlling a sleep-mode operation in a communication system is provided, in which a Mobile Station (MS) transitions to an awake state in a listening interval of the sleep mode, performs one of a first operation, a second operation, and a third operation in the awake state, and transitions to a sleep state if the MS determines that there is no data to transmit to a BS and no data to receive from the Base Station (BS) after the one operation is performed. The first operation is for receiving data from the BS, the second operation is for transmitting data to the BS, and the third operation is receiving data from the BS and transmitting data to the BS.
摘要:
An apparatus and method for seamlessly providing voice and data services to a user through an access terminal in a mobile communication system including a heterogeneous service & mobility gateway (HSMG) for an interworking service between a circuit network and a packet network, and various access networks overlapping each other. The access terminal notifies the HSMG that a voice call is received, if the access terminal that accessed a packet network receives a voice call. The HSMG sends a direction request to a circuit network upon receiving the notification indicating that the voice call is received. The access terminal directs to the circuit network and registers a new location upon receiving the direction request. The HSMG sets up an incoming voice call to the access terminal after the registration of a new location.