Abstract: There is provided a reverse data rate determining method in a mobile communication system for high data rate transmission such as an HDR system. An AN within a cell calculates the total load of a reverse link by measuring the total energy of the reverse link from ATs within the cell. The AN calculates the share of each AT in the total reverse link load. If the load share of an AT is greater than a threshold predetermined individually for the AT, the AN determines that the AT should reduce its data rate.

Abstract: A method for determining a gating rate in a base station for a CDMA communication system is disclosed. The method comprises transmitting information for assigning a dedicated control channel and a traffic channel to a mobile station, when a call is generated; after call setup, transmitting a message requesting mobile station's capability information to the mobile station; receiving the capability information including gating availability information of a reverse pilot signal and information about at least one gating rate, transmitted from the mobile station in reply to the request message; and determining a gating rate according to the capability information, transmitting information about the determined gating rate to the mobile station, and transitioning to an active sate. The mobile station's capability information includes information about gating availability and at least one gating rate, when gating is available.

Abstract: A method and apparatus are provided for receiving, by an access network (AN), reception strength of a forward pilot channel, measured and reported by each access terminal (AT), as forward data rate information, and transmitting packet data to each AT according to the forward data rate information. When the number of repeated transmission slots for packet data transmitted based on the forward data rate information is greater than or equal to two, the AN repeatedly transmits the packet data as many times as the number of slots, which is less than the number of repeated transmission slots, and transmits new packet data through the remaining slots.

Abstract: A system and method for providing broadcast traffic according to the location of an access terminal (AT) are provided. The AT determines whether a registration request for soft combining from an access network transceiver system (ANTS) belonging to a candidate set is present when an overhead message is received from the ANTS or the candidate set is changed. The AT is configured to add the ANTS to a registration list for the soft combining when the request is present. The AT sends to the ANTS a broadcast registration message at a transmission time point after setting the transmission time point to send the broadcast registration message including a broadcast/multicast service (BCMCS) service provision request for the soft combining. A network provides the AT with the overhead message including information about neighbor ANTSs and information about ANTSs for which the soft combining on broadcast traffic is enabled.

Abstract: A reduced slot cycle (RSC) mode control method is provided for observing a paging slot by a mobile station to receive a message transmitted from a base station in a mobile communication system. The mobile station calculates a per-slot cycle index (SCI) operation time within an RSC mode operation time using at least one parameter acquired through an exchange of at least one message with the base station, and starts the RSC mode. The mobile station increases an SCI value step by step each time the per-SCI operation arrives, and terminates the RSC mode if the increased SCI value reaches an SCI value of a general idle state.

Abstract: An apparatus and method for determining a transmission unit for data stream transmission in a wireless communication system in which multiple transmission and reception antennas are used and a receiver provides information on a data stream to be transmitted through a transmission unit. A fading estimator calculates fading values from the multiple transmission antennas to the multiple reception antennas. A channel quality estimator reverse-orders combined weights for multiple transmission units based on the fading values from the multiple transmission antennas to the multiple reception antennas, successively selects transmission units for data stream transmission among the reverse-ordered transmission units, determines a modulation and coding scheme (MCS) for each of the selected transmission units, and feeds back the MCS to a transmitter.

Abstract: A method for providing two or more broadcast services in an orthogonal frequency division multiple access (OFDMA) wireless communication system. The method comprises the steps of separately receiving broadcast services to be transmitted, and independently performing coding, interleaving and modulation on the broadcast services according to a required quality for each of the broadcast services; segmenting each of the modulated broadcast signals into minimum transmission units; time-division-multiplexing the segmented broadcast service signals; configuring a frame comprising information on the broadcast service in physical layer transmission information transmitted together with the broadcast service; and transmitting the frame.

Abstract: An information frame of a new format transmitted according to a radio link protocol (RLP), and a device and method for transmitting and receiving the information frame in a mobile communication system. The information frame is comprised of a plurality of consecutive multiplex frames each having a given length. The multiplex frames each are comprised of a header and a succeeding RLP frame, and the RLP frame includes transmission data. At least one of the multiplex frames is comprised of a plurality of sub-multiplex frames, and each sub-multiplex frame is comprised of a header including an RLP service identifier field and a length indication field for indicating a length of the transmission data, and a data block associated to the succeeding RLP frame.

Abstract: A transmit diversity apparatus and method are provided for adaptively providing a transmit diversity gain or a beamforming gain depending on changes in a radio channel undergoing multipath fading in a mobile communication system using multiple antennas. A transmitter forms as many fixed beams as the number of transmit antennas and a receiver selects a fixed beam having relatively high power among received fixed beams or linearly combines the received fixed beams. This common eigen space transmit diversity scheme improves the link performance between the transmitter and the receiver.

Abstract: An apparatus and method for providing a broadcasting service in a mobile communication system. The apparatus and method can transmit broadcasting service data using orthogonal frequency division multiplexing (OFDM) symbols in the mobile communication system. Broadcasting service data is encoded and modulated. The modulated data is demultiplexed into data streams corresponding to a number of orthogonal frequency subcarriers. The data streams are transformed using Fast Fourier Transform (FFT). The transformed data streams are multiplexed using OFDM. Information with a predetermined length placed in a last part of OFDM data is copied. The copied information is added as a cyclic prefix (CP) to a head part of the OFDM data, and OFDM symbols to be transmitted are generated. The generated OFDM symbols are multiplexed into a forward channel of the mobile communication system, and the multiplexed OFDM symbols are transmitted.

Abstract: An apparatus and method for multiplexing packets for broadcast services in a mobile communication system based on orthogonal frequency division multiplexing (OFDM). The OFDM system has a transmission structure in which one slot includes at least two symbols, and each symbol includes a plurality of subcarriers. Different broadcast service packets received from at least two channels are multiplexed into one slot and a result of the multiplexing is transmitted. Overhead information of the channel packets multiplexed into the one slot is generated and transmitted.

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 data in a mobile communication system. The method comprising segmenting a data stream into at least one consecutive frame having a variable data length, the data stream being segmented into a plurality of consecutive blocks having a variable data length, each said consecutive block being segmented into a plurality of sub-consecutive blocks having a byte length; attaching, at each head of the consecutive frames, a header including a first set of bits indicating the sequence number of a consecutive block corresponding to the head and a second set of bits indicating the sequence number of a sub-consecutive block corresponding to the head; and transmitting the header-attached consecutive frames.

Abstract: An apparatus and a method for transmitting and receiving data in a mobile communication system including an array antenna. The method includes the steps of transmitting pilot channels through a transmission antenna while aligning the pilot channels orthogonally to each other, receiving feedback information related to the pilot channels from a mobile station capable of receiving the data, dividing the data to be transmitted into sub-data streams by using the feedback information, and determining a coding rate and a transmit power for the sub-data streams, and converting the sub-data streams into symbol arrays to be transmitted according to the coding rate and the transmit power and transmitting data by converting the data into fixed beams.

Abstract: A scheduling method for providing multimedia service and packet data service efficiently. The scheduling is a Round-Robin scheduling in an MQC (Multiple Quality Control) protocol structure. A transmitter in a base station transmits or retransmits TUs from different streams in a PLP using priority queues by the scheduling.

Abstract: A method for transmitting a plurality of data frames in a mobile telecommunications system is disclosed. Each data frame has a frame sequence number and a data block. The method comprises the steps of segmenting a data frame into a plurality of data segments for retransmission, assigning the frame sequence number to each of said data segment, and assigning respective sequence numbers to the data bytes of each data segment to distinguish the first and last bytes of said data segment.

Abstract: 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.

Abstract: Disclosed is a method for generating a public long code mask (PLCM) so that a mobile station can receive a Broadcast/Multicast Service (BCMCS), in a mobile communication system including a base station and at least one mobile station located in a cell occupied by the base station, the BCMCS being provided from the base station to the mobile station. The PLCM is created by a combining a BCMCS flow identifier (BCMC_FLOW_ID) and a BCMC service reference identifier (BSR_ID) matched thereto from a BCMCS service parameter message (BSPM) including information related to the BCMC_FLOW_IDs indicating individual flow IDs for identifying flows from respective broadcasting stations and BSR_IDs matched to the BCMC_FLOW_IDs, the BSPM being transmitted from the base station to the mobile station over at least one channel.

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 are an apparatus and a method for retransmitting a failing RLP frame assigned with a new unique identifier agreed to between the transmitting and receiving RLP processors instead of the original sequence number. The receiving RLP processor requests the transmitting RLP processor to retransmit a failing RLP frame assigned with a new identifier determined by the receiving RLP processor. Responding to the request, the transmitting RLP processor retransmits the failing RLP frame assigned with the requested new identifier instead of the original sequence number.