Abstract: An apparatus and method are provided for a mobile communication system. The method includes receiving a signal; determining location information of at least one symbol group; and acquiring the at least one symbol group, to which an orthogonal sequence is applied, from the signal, based on the location information. The at least one symbol group is mapped to one of a first antenna set and a second antenna set based on the a symbol group index and a physical hybrid automatic repeat request indicator channel (PHICH) group index.

Abstract: An apparatus and method are provided for a mobile communication system. The method includes generating a symbol group to which an orthogonal sequence is applied; determining one of a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol for mapping the generated symbol group based on a symbol group index and a physical hybrid automatic repeat request indicator channel (PHICH) group index; mapping the generated symbol group to the determined symbol; and transmitting the mapped symbol group.

Abstract: A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data.

Abstract: Methods and apparatuses are provided for communicating with a terminal of a base station in a mobile communication system. Configuration information on a plurality of antenna ports of reference signals (RSs) which comprise first type antenna ports and second type antenna ports, is transmitted. Status information for at least one antenna port of an RS among the plurality of antenna ports of the RSs, is received. At least one indicator indicating at least one selected antenna port of an RS is transmitted based on the status information. The terminal is communicated with using the at least one selected antenna port of the RS. The first type antenna ports are for a centralized antenna and the second type antenna ports are for a distributed antenna.

Abstract: A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.

Abstract: Methods and apparatuses are provided for wireless communication. Control symbols are mapped to a plurality of resource element groups (REGs) which is not assigned to a physical channel format indication channel (PCFICH) or a physical hybrid automatic repeat request indicator channel (PHICH). The REGs are allocated based on a time first manner. The mapped control symbols are transmitted on a packet dedicated control channel (PDCCH).

Abstract: A method is provided for communication between a UE and a Node B in a communication system. The UE generates a Media Access Control-Protocol Data Unit (MAC-PDU) including a first field related to at least one queue ID and a second field related to at least one amount of data to be transmitted, where the data to be transmitted has its priority. The MAC-PDU including the first and second fields is transmitted to the Node B. Grant information is received from the Node B. Data is transmitted to the Node B based on the grant information and the priority. One amount of data in the second field corresponds to one queue ID in the first field.

Abstract: Methods and apparatus are provided for receiving a physical downlink control channel in a wireless communication system. The physical downlink control channel is received. The physical downlink control channel is decoded. A scheduling type is determined using scheduling type information in the physical downlink control channel. Scheduling information is determined for a data channel according to the scheduling type.

Abstract: A Downlink Control Information (DCI) processing device and method for a wireless communication system that encodes/decodes downlink control information based on a payload size of DCI format. The method includes determining a payload size of a first DCI format; and determining a payload size of a second DCI format by appending padding bits to the second DCI format until the payload size of the second DCI format is not an ambiguous size and is not equal to the payload size of the first DCI format.

Abstract: Methods and apparatuses are provided for wireless communication. A scheduling message including resource allocation information to allocate a resource for uplink transmission, is received. Data and a pilot are transmitted via the allocated resource for uplink transmission. An ACK/NACK resource is identified based on an index of the allocated resource for uplink transmission and information associated with the transmitted pilot. An ACK/NACK signal is received in response to the transmitted data using the identified ACK/NACK resource.

Abstract: The present invention provides a method and apparatus for transmitting an ACK/NACK in a TDD system. A component carrier (CC) configuration for a user equipment (UE) and a transmission mode of each CC are received. An ACK/NACK feedback mode is selected based on an overhead status for feedback in an uplink. An ACK/NACK is processed according to the selected feedback mode. And the ACK/NACK is transmitted in the uplink. The method provided by the present invention can avoid excessive overhead for feedback in uplink in various extreme circumstances while ensuring satisfying performances of downlinks under many configurations.

Abstract: A method for reporting channel state information by a terminal in a multiple access based communication system is provided. The method includes determining a most favored direction with a highest signal quality with respect to a reference signal received from a base station and determining, as a reported object, some channel directions including the most favored direction among channel directions formed together with the base station, identifying a channel quality information group including channel quality information corresponding to the some channel directions among channel quality information groups classified according to a distance measured with respect to the most favored direction, and transmitting the identified channel quality information group to the base station.

Abstract: An apparatus and a method are provided for operating HARQ in a mobile communication system. The method includes receiving a number of HARQ processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information for a first transmission; receiving data in the first transmission at a subframe based on the semi-persistent resource allocation interval information; calculating a HARQ process IDentifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and time information; receiving control information including the HARQ process ID on an L1 control channel; receiving data in a retransmission based on the control information including the HARQ process ID; combining the data received in the first transmission and the data received in the retransmission; and decoding the combined data.

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 method for allocating physical resources to an Acknowledgement (ACK)/Negative Acknowledgement (NACK) signal channel representative of a response signal in a wireless communication system. The method includes grouping ACK/NACK signal channels corresponding to a plurality of resource blocks used for transmission of a data channel or a control channel into a plurality of groups so ACK/NACK signal channels having consecutive indexes do not belong to the same group; and allocating same frequency resources to ACK/NACK signal channels belonging to the same ACK/NACK signal channel group and allocating orthogonal sequences so ACK/NACK signal channels in each ACK/NACK signal channel group are distinguished in a code domain.

Abstract: A method and apparatus for transmitting feedback information is provided for use in a Cooperative Multi-Point downlink transmission of multiple base stations efficiently. An interference measurement method of a base station in a mobile communication system, the method comprising: allocating at least one Interference Measurement Resource (IMR) to a terminal; transmitting the allocated IMR to the terminal; and receiving at least one channel status information from the terminal; wherein allocating at least one IMR comprises allocating at least one IMR for the terminal overlapped to other IMR for the other terminal.

Abstract: A method and apparatus for transmitting/receiving paging information in a wireless communication system having a system bandwidth being an integer multiple of a minimum reception bandwidth of a User Equipment (UE), in which a system band is divided into frequency bands having a bandwidth equal to the minimum reception bandwidth of the UE, a Paging Indicator (PI) of the paging information is transmitted in each of the frequency bands, the PI including a group identifier (ID) of a group to which the UE belongs, and a paging message of the paging information is transmitted in one of the frequency bands, the paging message including an ID of the UE.

Abstract: A method apparatus and system for efficiently transmitting and receiving channels are provided in a wireless communication system based on Orthogonal Frequency Division Multiplexing (OFDM). A multiplexing scheme differs according to a channel when a transmitter transmits a packet data channel, a common control channel and a control channel designated for a particular user. Uncoded 1-bit information is broadly dispersed in frequency and time domains using multiplexing technology for maximizing diversity gain in a channel for transmitting information of at least one bit to a particular user like an acknowledgement (ACK) channel. The transmitter converts a sequence obtained by multiplexing multiple bits to be transmitted to a plurality of users to parallel signals, and broadly disperses the parallel signals in the time and frequency domains.

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: The present invention relates to a method for transmitting an uplink channel in a wireless communication system. The method for transmitting an uplink channel of a terminal according to one embodiment of the present invention may comprise the steps of: receiving a downlink control message; extracting the starting point of a dynamic physical uplink control channel (PUCCH) resource region from the downlink control message; and transmitting an uplink channel according to the starting point of the extracted dynamic PUCCH resource region. An embodiment of the invention exhibits effects in reducing the signaling overhead, and preventing the terminal from unnecessarily consuming power, when transmitting the uplink channel in a CoMP system.