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). A number of the REGs in a physical resource block (PRB) on an orthogonal frequency division multiplexing (OFDM) symbol depends on an index of the OFDM symbol and a number of configured reference signals.

Abstract: Coordinated multipoint communication is a technology for improving cell-edge performance for users in a cell-type mobile communication system. In order to enable a coordinated multipoint transmission/reception operation, a user equipment report of a local environment is required to select both coordinated communication modes and communication partners in evolved Node B (eNB) base stations. According to the present invention, a method is described for feeding back information from User Equipment (UE) to a serving base station to enable a coordinated multi-point transmission/reception operation. The information reported through the feedback is classified into two categories corresponding to received signal intensity information and received signal timing information. The UE may select one or both types of information from between the categories to provide feedback. In embodiments of the present invention, various overhead-reducing reporting formats are described.

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 transmitting control information in an SC-FDMA system. A UE determines cyclic shift values for SC-FDMA symbols. The UE acquires cyclic shift sequences by the cyclic shift values. The UE applies the cyclic shift sequences to the control information on an SC-FDMA symbol basis. The control information applied with the cyclic shift sequences in the SC-FDMA symbols is transmitted to a Node B.

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: Methods and apparatuses are provided for reporting power headroom of a user equipment (UE). It is determined whether a simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is configured. First power headroom information and second power headroom information are, if the simultaneous PUCCH and PUSCH transmission is configured. The first power headroom information and the second power headroom information are simultaneously transmitted to a base station. The first power headroom information is obtained by subtracting a PUSCH transmit power from a maximum UE transmit power in a subframe, and the second power headroom information is obtained by subtracting a PUCCH transmit power and the PUSCH transmit power from the maximum UE transmit power in the subframe.

Abstract: A method for providing time synchronization in a node connected to an Audio Video Bridging (AVB) Ethernet communication network includes steps of receiving static announcement messages from adjacent nodes and constituting a static grandmaster table, reselecting a grandmaster with reference to the static grandmaster table when a synchronization message timer expires, and updating the static grandmaster table according to reselection of the grandmaster. The method may rapidly time synchronization in the Audio Video Bridging (AVB) Ethernet communication network and minimize network load.

Abstract: A method for processing a SOME/IP stream through interworking with Audio Video Bridging (AVB) in a server includes determining a transmission scheme for the SOME/IP stream through a SOME/IP service discovery procedure and generating an InitialEvent message and transmitting the generated InitialEvent message to a client according to the determined transmission scheme. If the determined transmission scheme is L2-Frame, the SOME/IP stream is transmitted through a layer 2 of AVB. Therefore, a SOME/IP stream, the QoS of which is guaranteed through interworking with AVB, may be provided.

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: An apparatus and a method are provided for transmitting data by a UE in a communication system using SC-FDMA. The method includes receiving resource information from a Node B; determining a hopping parameter; determining a mirroring parameter using a random sequence for a cell; determining a resource for data transmission based on the received resource information; and transmitting the data using the resource for data transmission. Hopping and mirroring are performed at a slot.

Abstract: Methods and apparatuses are provided for establishing time alignment by a terminal in a wireless communication system. Information for identifying a preamble is received from the base station on the downlink control channel. The preamble is transmitted to the base station based on the information for identifying the preamble. A message including information for a channel quality indicator (CQI) request is received from the base station. A CQI is transmitted to the base station based on the information for the CQI request response message. A CQI is transmitted to the base station based on the information for the CQI request.

Abstract: Methods and apparatuses are provided for performing communication by a UE in a mobile communication system. A speed of the UE is measured by using an acceleration sensor in the UE. The UE determines that a change of the measured speed is detected in accordance with a predetermined criteria. The UE transmits information about the measured speed to a serving base station if the change of the measured speed is detected. Information about a target cell determined by the serving base station based on the measured speed is received from the serving base station. A handover procedure to the target cell is performed in response to receiving the information about the target cell.

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 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 channel searching method may include setting a first channel in a broadcast signal, determining signal strength of the broadcast signal and generating an automatic gain control signal for the first channel, and when the signal strength satisfies a preset first requirement and the automatic gain control signal satisfies a preset second requirement, skipping demodulation of the first channel.

Abstract: A wireless device and method for managing a multicast group within a wireless network are disclosed. The wireless device is included in a first multicast group in which data is directly sent between member devices or data is sent using hopping between the member devices. The wireless device includes a reception unit, a determination unit, and a transmission unit. The reception unit receives a join request for joining a second multicast group from a joining device that attempts to join the second multicast group. The determination unit extracts information about the second multicast group from the join request, and determines whether the second multicast group is identical with the first multicast group based on the information about the second multicast group. The transmission unit forwards the join request to another device or sends a response to the join request to the joining device based on a result of the determination.

Abstract: Methods and apparatuses are provided for transmitting and receiving information. A User Equipment (UE) receives information related to a cyclic shift value ? transmitted from a Node B. The UE obtains a reference sequence based on a Zadoff-Chu sequence and ej?. The UE transmits the reference sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B. The SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

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 mapped control symbols are transmitted on a packet dedicated control channel (PDCCH). A physical resource block (PRB) on a second orthogonal frequency division multiplexing (OFDM) symbol in a first slot in a subframe includes three REGs if one or two cell-specific reference signals are configured, and the PRB on the second OFDM symbol of the first slot in the subframe includes two REGs if four cell-specific reference signals are configured.

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). A number of a plurality of resource elements (REs) in each of the REGs depends on an index of an orthogonal frequency division multiplexing (OFDM) symbol and a number of configured reference signals.

Abstract: A method and apparatus are provided for reporting Channel State Information (CSI) in an uplink by a User Equipment (UE) in a wireless communication system. The method includes reporting a first Precoding Matrix Indicator (PMI) to an evolved Node B (eNB); calculating a second PMI using the first PMI; and reporting the second PMI to the eNB.