Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting first information on hopping, the first information on hopping indicating that one of inter-subframe hopping and intra-subframe hopping is configured; transmitting second information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the second information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.

Abstract: Provided is a Physical Downlink Control Channel (PDCCH) transmission method of a base station for a mobile communication system based on an Orthogonal Frequency Division Multiple Access (OFDMA). The method includes acquiring downlink control information of a resource corresponding to a carrier among a plurality of carriers, identifying at least one Control Channel Element (CCE) index based on an indicator of the carrier among the plurality of carriers, generating a PDCCH for the downlink control information based on the identified CCE index, and transmitting the PDCCH through a predetermined carrier.

Abstract: Methods and apparatuses for transmitting and receiving a signal in a mobile communication system are provided. The method for receiving a signal at a User Equipment (UE) in the mobile communication system includes receiving, from a Base Station (BS), configuration information indicating whether a Broadcasting Channel (BCH) and a Synchronization Channel (SCH) are allocated in at least one subband; receiving, from the BS, a downlink control channel; and receiving, from the BS, a downlink data channel, based on the configuration information and the downlink control channel.

Abstract: Provided is a Physical Downlink Control Channel (PDCCH) transmission method of a base station for a mobile communication system based on an Orthogonal Frequency Division Multiple Access (OFDMA). The method includes acquiring downlink control information of a resource corresponding to a carrier among a plurality of carriers, identifying at least one Control Channel Element (CCE) index based on an indicator of the carrier among the plurality of carriers, generating a PDCCH for the downlink control information based on the identified CCE index, and transmitting the PDCCH through a predetermined carrier.

Abstract: A method and apparatus are provided for transmitting and receiving control information in a wireless communication system supporting multi-cell transmission. A method includes receiving a first pilot signal from a first cell and a second pilot signal from a second cell; generating first control information indicating channel quality for the first cell and second control information indicating channel quality for the second cell, based on the first pilot signal and the second pilot signal, respectively; separately encoding the first control information and the second control information; separately power controlling the encoded first control information and the encoded second control information; transmitting, on the first cell, the power controlled, encoded first control information on a first control channel; and transmitting, on the first cell, the power controlled, encoded second control information on a second control channel.

Abstract: A CQI transmission power control method is provided for transmitting CQIs of multiple cells is provided for a multi-cell HSDPA system in which multiple cells transmit packet data to a user equipment. A control information transmission method of a user equipment in a wireless communication system supporting multi-cell packet transmission service according to the present invention includes generating control informations indicating channel qualities of different cells; classifying the control informations into two control information groups according to a predetermined rule; compensating the control information groups for securing uniform reception performance at a base station; and transmitting the compensated control information groups to the base station.

Abstract: A resource allocation method and apparatus for an OFDMA-based mobile communication system that allows allocating resources of multiple carriers is provided. A Physical Downlink Control Channel (PDCCH) transmission method for allocating resources in multiple frequency bands of a mobile communication system based on an Orthogonal Frequency Division Multiple Access (OFDMA) according to the present invention includes generating and transmitting, at a base station, multiple PDCCHs for allocating resources in the multiple frequency bands using Control Channel Element (CCE) indices; and receiving and demodulating, at a user equipment, the multiple PDCCHs transmitted by the base station and locating the resources allocated in the multiple frequency bands using the CCE indices of respective PDCCHs.

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting first information on hopping, the first information on hopping indicating that one of inter-subframe hopping and intra-subframe hopping is configured; transmitting second information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the second information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. The method includes transmitting an uplink grant including resource allocation information and frequency hopping information; determining a resource for the uplink data based on the resource allocation information and a packet transmission number, if the frequency hopping information indicates that a predefined hopping pattern is enabled; and receiving the uplink data mapped on the determined resource. Mirroring is alternatively applied for determining the resource based on the packet transmission number.

Abstract: A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. The method includes transmitting an uplink grant including resource allocation information and frequency hopping information; determining a resource for the uplink data based on the resource allocation information and a packet transmission number, if the frequency hopping information indicates that a predefined hopping pattern is enabled; and receiving the uplink data mapped on the determined resource. Mirroring is alternatively applied for determining the resource based on the packet transmission number.

Abstract: A method and apparatus are provided for transmitting and receiving control information in a wireless communication system supporting multi-cell transmission. A method includes receiving a first pilot signal from a first cell and a second pilot signal from a second cell; generating first control information indicating channel quality for the first cell and second control information indicating channel quality for the second cell, based on the first pilot signal and the second pilot signal, respectively; separately encoding the first control information and the second control information; separately power controlling the encoded first control information and the encoded second control information; transmitting, on the first cell, the power controlled, encoded first control information on a first control channel; and transmitting, on the first cell, the power controlled, encoded second control information on a second control channel.

Abstract: A frequency allocation method and apparatus using a mirroring-assisted frequency hopping pattern is provided for retransmission in a wireless communication system operating in a frequency hopping mode. A frequency mapping method for a wireless communication system operating in a frequency hopping mode includes determining whether or not mirroring is used in accordance with a number of packet transmissions; mapping a frequency resource for a packet transmission based on a result of the determination; and receiving a packet using the mapped frequency resource.

Abstract: A frequency allocation method and apparatus using a mirroring-assisted frequency hopping pattern is provided for retransmission in a wireless communication system operating in a frequency hopping mode. A frequency mapping method for a wireless communication system operating in a frequency hopping mode includes determining whether or not mirroring is used in accordance with a number of packet transmissions; mapping a frequency resource for a packet transmission based on a result of the determination; and receiving a packet using the mapped frequency resource.

Abstract: Methods and apparatuses for transmitting and receiving a signal in a mobile communication system are provided. The method for receiving a signal at a User Equipment (UE) in the mobile communication system includes receiving, from a Base Station (BS), configuration information indicating whether a Broadcasting Channel (BCH) and a Synchronization Channel (SCH) are allocated in at least one subband; receiving, from the BS, a downlink control channel; and receiving, from the BS, a downlink data channel, based on the configuration information and the downlink control channel.

Abstract: A frequency allocation method and apparatus using a mirroring-assisted frequency hopping pattern is provided for retransmission in a wireless communication system operating in a frequency hopping mode. A frequency mapping method for a wireless communication system operating in a frequency hopping mode includes determining whether or not mirroring is used in accordance with a number of packet transmissions; mapping a frequency resource for a packet transmission based on a result of the determination; and receiving a packet using the mapped frequency resource.

Abstract: Methods and apparatuses for transmitting and receiving downlink common channels such as synchronization channel and broadcast channel in a cellular communication system supporting bandwidth scalability are provided. The downlink physical data channel transmission method for a base station of a cellular communication supporting bandwidth scalability according to the present invention includes generating a first system information specific to Long Term Evolution (LTE) terminals; generating a second system information specific to LTE-Advanced (LTE-A) terminals, the second system information including information on entire system bandwidth, a number of subbands constituting the entire bandwidth, and subbands on which common control channels are transmitted; transmitting the first information and the second information on a system information channel; and instructing, when a terminal attempts to camp on, a subband on which the terminal to camp.

Abstract: A frequency allocation method and apparatus using a mirroring-assisted frequency hopping pattern is provided for retransmission in a wireless communication system operating in a frequency hopping mode. A frequency mapping method for a wireless communication system operating in a frequency hopping mode includes determining whether or not mirroring is used in accordance with a number of packet transmissions; mapping a frequency resource for a packet transmission based on a result of the determination; and receiving a packet using the mapped frequency resource.

Abstract: A serving cell change method and apparatus is provided for efficiently performing the serving cell change in a mobile communication system. The UE receives a cell change control information including an activation time from a serving cell, when a downlink channel status of the serving cell is inferior to a downlink channel status of a target cell, reports a measurement result to the serving cell while performing data communication with the serving cell, monitors receipt of a cell change indicator transmitted by the target cell before the expiration of the activation time while performing the data communication with the serving cell, and when the cell change indicator is received, communicates data with the target cell by sending an acknowledgement in response to the cell change indicator and switching to the target cell.