Abstract: A method and apparatus for transmitting a broadcast physical layer packet in a mobile communication system supporting multi-slot transmission and hybrid Automatic Repeat Request (H-ARQ) are provided. The method comprises initially transmitting the broadcast physical layer packet according to a fixed transmission format for at least one first slot interval and retransmitting the broadcast physical layer packet for at least one second slot interval using a variable transmission format different from the transmission format used in the first slot interval.

Abstract: A method and system are provided for transmitting broadcast service data in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme in which data transmission is achieved through a downlink and an uplink within one frame. The system being connected to a broadcast server. The system and method include allocating a connection identifier (CID) to each broadcast service for identification of a broadcast service packet transmitted over the downlink, and transmitting broadcast service information for each broadcast service; and receiving a broadcast packet from the broadcast server, and transmitting a physical layer transmission information element (DL-MAP) including a broadcast service CID for the broadcast packet through the downlink0.

Abstract: A method for transmitting/receiving resource allocation information in a mobile communication system using a shared control channel. The transmission method includes performing scheduling for resource allocation to a plurality of terminals; generating, in a bitmap, information indicating allocation/non-allocation of resources which are not sequentially allocated beginning from a particular terminal using the scheduling result; and transmitting, over the shared control channel, resource allocation information including a terminal identifier and a resource allocation bitmap of each terminal.

Abstract: 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.

Abstract: An apparatus and method for positioning a pilot in a transmitter for an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system. In the apparatus, a consecutive block assignment determiner determines whether it will assign a consecutive block or a single block in a frequency axis or a time axis. A pilot tone pattern generator determines a pilot pattern in the block by applying a predetermined rule according to the determination result. A pilot tone inserter positions pilots in the block based on the determined pilot pattern.

Abstract: A network system using Mobile Internet Protocol (IP). The network system includes a correspondent node for transmitting a packet in which information passing a packet filter rule is included, and a packet filtering apparatus for determining whether an address included in information of the packet received from the correspondent node is identical to a destination address stored in the packet filter rule, and determining whether to pass the packet according to the determination result.

Abstract: A method for supporting frequency hopping of a transmission apparatus by a reception apparatus in a wireless communication system supporting Hybrid Automatic Repeat reQuest (HARQ). The method includes determining whether a particular transmission apparatus has a need to perform hopping of allocating a different logical channel every Transmission Time Interval (TTI); and when there is no need to perform hopping every TTI, sending to the transmission apparatus a command to perform hopping every multiple TTIs, and simultaneously signaling information on a number of the multiple TTIs.

Abstract: A method for transmitting/receiving a data control channel in a wireless communication system that transmits packet data. The transmission method includes transmitting packet data over a packet data channel, transmitting a control channel and receiving an ACKnowledgement (ACK) signal from a terminal that has received the control channel. The reception method includes receiving packet data and a control channel, acquiring control information by demodulating the control channel, and detecting an error in the control channel, and sending the error detection result to a base station as an ACK signal, if the control channel has been transmitted to the terminal itself.

Abstract: A hybrid multiple access apparatus and method in a mobile communication system supporting various multiple access schemes are provided, in which an initial service negotiation is performed in a non-orthogonal transmission scheme between an MS and a BS, the BS receives from the MS an orthogonal resource request for high-speed packet data transmission, and the BS allocates orthogonal resources to the MS based on channel estimation information indicating a channel status between the MS and the BS.

Abstract: A transmission apparatus for transmitting packet data in a forward link of a High Rate Packet Data (HRPD) system is disclosed. The apparatus includes a first transmission processor for modulating physical link packet data according to an Orthogonal Frequency Division Multiplexing (OFDM) transmission scheme; a second transmission processor for modulating the physical link packet data according to a Evolution Data Only (EV-DO) transmission scheme; an HRPD-compatible processor for generating a transmission signal based on a slot structure of the HRPD system using one of output signals of the first and second transmission processors, and transmitting the transmission signal to a wireless network; and a controller for controlling transmission of the transmission signal according to a selected one of the OFDM transmission scheme and the EV-DO transmission scheme.

Abstract: A method for receiving resources allocated from a base station by a terminal in an OFDMA mobile communication system. The method includes receiving, for a data channel, a number of first components, which indicates an amount of resources used with a first resource allocation scheme, and a number of second components, which indicates an amount of resources used with a second resource allocation scheme, from the base station over a common control channel; determining first and second identifier lengths of channel elements for the first and second resource allocation schemes according to the number of first components and the number of second components; receiving resource allocation information including an identifier indicating at least one channel element allocated to the terminal, over a data control channel using one of the identifier lengths; and transmitting and receiving data over a resource of a channel element indicated by the received identifier.

Abstract: A method for allocating resources in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system where data is transmitted by Hybrid Automatic Repeat reQuest (HARQ) is provided, in which a multiplexing mode is selected for multiplexing a Distributed Resource Channel (DRCH) and Localized Resource Channel (LRCH) over orthogonal frequency resources, in which it is determined whether to use persistent resource allocation for each slot, if the selected multiplexing mode is a multiplexing mode that punctures the DRCH onto the LRCH, resources are allocated in an Synchronous HARQ S-HARQ scheme if the persistent resource allocation is used, and resources are allocated in a Resource Adaptive S-HARQ (RAS-HARQ) scheme if the persistent resource allocation is not used and resources are to be reused when early termination of HARQ transmission occurs.

Abstract: A method for allocating resources in a wireless communication system using Frequency Division Multiple Access (FDMA). The method includes dividing entire frequency resources into sub-bands each having a number of sub-channels, setting at least one sub-channel in each of the sub-bands as a wide-band resource, and providing the sub-band and wide-band information to mobile stations; and determining one of the sub-band resource and the wide-band resource as an allocated resource according to channel condition with a particular mobile station when there is a need for communication with the mobile station.

Abstract: A transmission/reception method for transmitting a control channel in an Orthogonal Frequency Division Multiplexing (OFDM) system. The transmission method includes generating a plurality of control channels such that control information for demodulation of the plurality of control channels is distributed over information of other control channels; and modulating a data channel and the control channels into a radio signal according to a predetermined transmission scheme, and transmitting the radio signal to a wireless network. The reception method includes receiving a plurality of control channels transmitted via a wireless network; and extracting control information for demodulation of the control channels from other previously received control channels, and performing the demodulation using the control information.

Abstract: An apparatus and method for efficiently transmitting/receiving a control channel in a mobile communication system simultaneously supporting a synchronous High-Rate Packet Data (HRPD) system and an Orthogonal Frequency Division Multiplexing (OFDM) system. Power of a control channel to be transmitted is measured. The measured power is compared with marginal maximum power set by a higher layer. According to the comparison result, information indicating whether a previous reverse packet has been successfully received and power control information for controlling power of a reverse link is inserted and transmitted in at least one of a Medium Access Control (MAC) channel and an OFDM symbol.

Abstract: An apparatus and method for optimizing a data rate in a wireless communication system supporting Hybrid Automatic Repeat reQuest (HARQ) are provided. The method includes estimating Channel State Information (CSI) of a signal to be transmitted, by using other CSIs received in a previous cycle; determining an instantaneous data rate, at which the CSI is transmitted with an optimal data rate, and the amount of redundancy information to be retransmitted; and retransmitting the redundancy information of the signal according to the amount of redundancy information and the instantaneous data rate, if a receiving end requests signal retransmission. Accordingly, the packet can be transmitted with the optimal data rate.

Abstract: A Hybrid Automatic Repeat reQuest (HARQ) method performed in a receiver of a mobile communication system. The HARQ method includes receiving from a transmitter an initial transmission subpacket among a plurality of subpackets; sending a request for transmission of a retransmission subpacket to the transmitter upon failure to decode the initial transmission subpacket; receiving the retransmission subpacket using control information previously received from the transmitter upon failure to receive, from the transmitter, control information for reception of the retransmission subpacket; and receiving the retransmission subpacket using currently received control information upon receipt of the control information from the transmitter.

Abstract: Disclosed is a method for allocating resources in a base station of a wireless communication system that performs communication using frequency resources. The method includes dividing subcarriers into subcarrier sets each including a predetermined number of consecutive subcarriers, and generating a resource index table mapped to consecutive indexes such that a distance between subcarriers in the subcarrier sets is maximized; and determining an amount of resources to be transmitted through a downlink according to a channel condition, for data to be transmitted to each terminal, and allocating resources to the terminal using the index value in the resource index table.

Abstract: A packet data transmitting/receiving method in a mobile communication system. The transmission method includes determining whether to transmit a plurality of packet data in one slot; and transmitting a Primary Control Preamble (PCP) having a specific preamble pattern, a coded control channel, and packet data, if it is determined to transmit a plurality of packet data in one slot. The reception method includes detecting a preamble from a signal received from a base station; determining whether the detected preamble is a Primary Control Preamble (PCP) having a specific preamble pattern; decoding coded control channels, and checking a Media Access Control Identifier (MAC ID) in the decoded control channels, if the detected preamble is a PCP; determining whether the MAC ID in the control channels is identical to a MAC ID of a terminal; and decoding corresponding packet data if the MAC IDs are identical.

Abstract: Disclosed is a method for controlling reverse transmission power in a cellular mobile communication system. A base station measures interference in a cell divided into a plurality of beamforming areas, determines an Interference Availability Bit (IAB) of a specific area where the measured interference is greater than or less than a threshold, and forms a beam so as to transmit the determined IAB to a beamforming area including the specific area. A terminal receiving the formed beam receives the IAB, and controls reverse transmission power according to the received IAB.