摘要:
An apparatus and method for transmitting and receiving packet data in persistent resources in a wireless communication system using Hybrid Automatic Repeat reQuest (HARQ) are provided, in which a user buffer stores user data to be transmitted to a receiver, a controller allocates persistent resources to the receiver according to the data type of the user data and controls a Packet Start Indicator (PSI) to be included in an initial transmission subpacket, when the initial transmission subpacket is transmitted, and a transmission and reception processor transmits the user data and the PSI to the receiver and receives a response signal from the receiver.
摘要:
An apparatus and method is provided for generating one packet with transmission data and transmitting the packet from an access network transceiver system (ANTS) to a plurality of access terminals (ATs) in a mobile communication system including the ATs and the ANTS which are capable of performing packet data communication with ATs located in coverage thereof. The method includes the steps of generating a medium access control (MAC) header including information on a receiving AT's address, a length and format for transmission data, generating a MAC payload by consecutively connecting data units to be transmitted to the receiving AT, and generating a MAC trailer. The ANTS pads ‘0’ bits to the MAC header if a predetermined MAC size is greater than a sum of lengths of the MAC header, the MAC payload and the MAC trailer.
摘要:
Provide is a power supply for boosting charge which is adaptive to a change in capacity by modularizing each part, can achieve modularization while facilitating insulation from a grid by installing a transformer at the grid side, can reduce the ripple of the output current by controlling a switching in a phase staggering scheme, and can reduce the ripple of the output current in an individual charging mode. The power supply for boosting charge includes: an input filter unit for filtering current or voltage introduced from a power grid; a rectifying unit for rectifying an AC voltage outputted from the input filter unit into a DC voltage; a DC link unit for smoothing an output voltage of the rectifying unit; and a battery charging unit which includes two or more battery charging modules connected in parallel to the DC link unit.
摘要:
A method and system for supporting a handoff of an MS in a PMIP mobile communication system are provided. The method includes a target node transmitting a first registration request message to an HA in order to request registration of the MS, when the MS moves from the service area of a serving node to the service area of the target node; the serving node discarding a second registration request message without processing the second registration request message, when the serving node receives the second registration request message from the MS before the target node receives a first registration response message for the first registration request message from the HA; and the serving node requesting deregistration of the serving node to the HA, when the target node receives the first registration response message from the HA.
摘要:
A method is provided for transmitting control information by a Base Station (BS) in a Time Division Duplexing (TDD)-based Orthogonal Frequency Division Multiple Access (OFDMA) system. The method includes determining a TDD ratio value of a number of time slots allocated for Forward-Link (FL) and a number of time slots allocated for Reverse-Link (RL); if the TDD ratio value is not an integer, grouping Mobile Stations (MSs) into multiple groups and generating group index information; and transmitting, to the MSs, control information including the TDD ratio value and the group index information.
摘要:
Disclosed are an apparatus and a method for controlling a reverse rate of data transmitted to a BTS (base transceiver station) from MSs (mobile stations), to which an autonomous rate control is granted. The method includes the steps of checking whether a limitation for a reverse autonomous rate of an MS is persistent when it is determined from a reverse load that the limitation for the reverse autonomous rate of the MS is necessary, and transmitting information for limiting the reverse autonomous rate of the MS and information indicating persistence of the limitation for the reverse autonomous rate to the MS when it is necessary to persistently maintain the limitation for the reverse autonomous rate of the MS.
摘要:
A method for providing an interactive data service between a base station and a mobile station in a mobile communication system including at least one mobile station, the base station communicating with the mobile station, and a server connected to the base station. The base station simultaneously transmits data transmitted from the server, to one or more mobile stations over a forward common channel. A particular mobile station receiving a service through the common channel transmits reverse transmission data over a dedicated channel.
摘要:
A reverse transmission controlling method in a mobile communication system. After receiving forward information commanding a reverse data rate change on a forward channel from a base station, a mobile station increases its reverse data rate to a data rate equal to or lower than a maximum data rate if the forward information commands a reverse data rate increase, determines whether the increased data rate can be further increased for the next frame, and transmits the determination result with information representing the increased data rate to the base station.
摘要:
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.
摘要:
A system is provided for managing mobility of an Access Terminal (AT) in a Proxy Mobile Internet Protocol (PMIP) communication system. As the AT performs a handoff, a target Signaling Radio Network Controller (SRNC) delivers session information of the AT, acquired from a source SRNC of a source network, to a target Access Network (AN). An Authentication, Authorization and Accounting server (AAA) performs an AT access authentication process. Then, a target Access Gateway (AGW) performs a proxy registration procedure, with the target AN, and receives, from the AT, a message indicating a need to establish an interface with the HA. A Home Agent (HA) performs mobility management for the AT, receives a message for requesting proxy registration for mobility management for the AT, sends an access request message to the AAA, receives an access accept message, and sends a response message for proxy registration to the target AGW.