Abstract: There is provided mechanisms for paging at least one client node in a group communications system. A method is performed by a control node of the group communications system. The method comprises obtaining a need for paging the at least one client node in the group communications system. The method comprises transmitting a paging message for the at least one client node on a multimedia broadcast multicast service (MBMS) bearer to the at least one client node. There is also provided a control node configured to perform such a method. There is also provided mechanisms for receiving paging in a group communications system.

Abstract: A method performed by a core network node for handling communication for a wireless device in a communication network, wherein the communication network comprises partitioned sets of functionalities. A first set of functionalities belongs to a first network slice supporting the wireless device, and a second set of functionalities belongs to a second network slice supporting the wireless device, and which first and second sets of functionalities are separated from one another and other sets of functionalities. The core network node obtains a common identity for defining paging occasion for the wireless device for paging from the first network slice and the second network slice. The core network node receives a paging request for the wireless device from the first network slice when the wireless device is in idle mode, and the core network node initiates a paging procedure of the wireless device by using the obtained common identity.

Abstract: The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment. To this end, provided are a wireless communication method of a terminal, including: performing a backoff procedure for transmitting data; transmitting a first RTS frame when a backoff counter of the backoff procedure is expired; setting a transmission timer for waiting for transmitting the data when a second RTS frame is received in response to the transmitted first RTS frame; and waiting for transmitting the data based on the set transmission timer and a wireless communication terminal using the same.

Abstract: A communication system is disclosed in which a relay communication device identifies a service to be received by at least one other communication device and also identifies the at least one communication device. The relay communication device maintains a mapping between services and the communication device(s) that need to receive that service. The relaying communication device receives service data using a broadcast/multicast bearer and forwards, using a respective device-to-device bearer, the service data to each communication device for which a respective mapping to that particular service is maintained.

Abstract: Establishment of a Terrain Independent Communication using—The HF band (3-30 MHz) and VHF (30 to 300 MHz) frequency spectrums that is provided for use as shared spectrum by the FCC. Different segments within the spectrum are in use today by emergency and utility companies in an intermittent fashion. The utilization of the shared spectrum as of date is very low (typically below 20%). The invention seeks to identify optimum, and less frequented frequency ranges within the spectrum to establish terrain independent connectivity between base stations and end points up to 1200-mile radius. This connection is used to provide terrain independent communication for data communication for point to point and point to multi-point applications. Typically, this connection is used for short bust automatic data acquisition applications, such as sensor monitoring, and other communication applications.

Abstract: A method and a device for allocating resource units in a wireless LAN are disclosed. The method for allocating resource units in a wireless LAN can comprise the steps of: scheduling, by an AP, wireless resources for communicating with an STA on a bandwidth; and transmitting, by the AP, downlink data to the STA through the wireless resources, wherein the wireless resources are determined on the basis of a resource allocation combination according to the bandwidth size, and the resource allocation combination is a combination of at least one resource unit allocable on the whole available tone according to the bandwidth size, and the whole available tone can be a multiple of 242 tones according to the bandwidth size.

Abstract: The present disclosure relates to methods of configuring transmission properties in a radio network node. More particularly the disclosure pertains to configuring transmission properties based on a successful decoding of one or more transport blocks. The disclosure also relates to methods of configuring transmission properties in the uplink and in the downlink and to corresponding radio network node and computer program. According to some aspects, the disclosure proposes a method, performed in a radio network node that is communicating with a wireless device, of configuring transmission properties.

Abstract: Described herein are one or more self-organizing network (SON) components configured to determine QoS factors associated with QoS classes for a node of a telecommunication network based at least in part on performance metrics, network configuration, or network fault information. The one or more SON components may receive the performance metrics, network configuration, or network fault information from the node, and the performance metrics, network configuration, or network fault information may be associated with communication of traffic of the QoS classes by the node. Upon determining the QoS factors, the one or more SON components may transmit indications of the QoS factors to the node.

Abstract: A method for transmission of control data to a user equipment in a mobile telecommunication system, wherein the method comprises sending control data to the user equipment in a data transmission, and performing, by the user equipment, a blind decoding of transmission elements within the data transmission in order to detect the control data in a data region in the data transmission.

Abstract: A method, apparatus and system for transmitting control plane messages in a communication network. Messaging is between two logical nodes, e.g. gNBs. Logical nodes include multiple networked sub-entities. Multiple sub-interfaces couple a pair of logical nodes. One sub-interface is selected based on keys associated with content of a message. Key-to-sub-interface associations are stored in memory. The keys may be identifiers included in the control plane message, such as UE IDs, Cell IDs, etc. Packets carrying the control plane message are configured and transmitted using the selected sub-interface. A key-to-sub-interface association may be established or updated when a control plane message is received via the sub-interface and includes the key, or in response to a rejection message specifying the correct sub-interface to use. A middle box entity may be provided in a logical node for each sub-interface and configured to act at least initially to forward messages to appropriate sub-entities.

Abstract: A network node and a user device are provided. The network node comprising: a processor configured to: generate a check element for each user device in a group of user devices; a transmitter configured to: transmit the control information message to the group of user devices. The user device comprising: a receiver configured to: receive a control information message addressed for a group of user devices; a processor configured to: perform a redundancy check on the control information message; derive the control information from the control information message and discard check elements of other user devices upon a positive redundancy check; communicate in the wireless communication system based on the derived control information. Furthermore, the present invention also relates to corresponding methods, a computer program, and a computer program product.

Abstract: There is provided configuration of a communications link. The configuration involves wirelessly receiving control signalling from a user equipment by a network node functional unit. The control signalling relates to an uplink communications resource between the user equipment and the network node functional unit. The configuration further involves notifying, in response to receiving the control signalling and prior to receiving any user data associated with the control signalling from the user equipment on the uplink communications resource, a backhaul client functional unit to configure a communications link to a backhaul hub.

Abstract: Provided is a method of transmitting control information using a physical uplink shared channel (PUSCH) region in a system employing a multi-input multi-output (MIMO) antenna system in which transmission is performed through a plurality of layers. A method of transmitting a channel quality indicator (CQI)/precoding matrix indicator (PMI) using a PUSCH region in a system employing a MIMO antenna system in which transmission is performed through a plurality of layers includes encoding the CQI/PMI using one channel encoder, and transmitting the encoded CQI/PMI using some or all of the layers. Accordingly, it is possible to transmit uplink control information through a PUSCH region using a plurality of layers.

Abstract: A mechanism that allows the successful decoding of MCS information of cell edge UEs while retaining the performance for the other UEs of the cell is provided. In one aspect, a UE may determine an uplink control coding rate based on an uplink signal quality. The UE may encode uplink control data based on the uplink control coding rate. The UE may apply a pattern of unused resource element locations in uplink control resource elements based on the uplink control coding rate. The UE may transmit the uplink control resource elements with the pattern of unused resource element locations. In another aspect, an eNB may receive uplink control resource elements. The eNB may determine an uplink control coding rate based on a pattern of resource element locations in the uplink control resource elements. The eNB may decode uplink control data based on the uplink control coding rate.

Abstract: A channel feedback information transmission method is disclosed. A terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information; the terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation; the terminal determines a feedback factor; the terminal obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information; and the terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.

Abstract: A method for reducing inter-cell interference caused by transmission (Tx) beam tracking by a user equipment (UE) in a wireless communication system comprises transmitting, to a serving base station (BS), an indicator indicating request for reporting of information about a Tx beam identifier (ID) identifying a Tx beam causing interference to a neighbor cell by transmitting sounding reference symbol (SRS) and information about a cell ID of the neighbor cell; receiving, from the serving BS, control information indicating a position of a resource for transmission of the information about the Tx beam ID and the information about the cell ID of the neighbor cell; and transmitting, to the serving BS, the information about the Tx beam ID and the information about the cell ID of the neighbor cell through the position of resource indicated by the control information.

Abstract: The method for transmitting and receiving an uplink signal in a wireless communication system, according to one embodiment of the present invention, enables receiving, from a base station, information about an M-PUCCH resource for MTC, and transmitting, from a first subframe, the uplink signal through a first M-PUCCH resource on the basis of the M-PUCCH resource. Here, the index of the first M-PUCCH resource corresponds to a first index which is the index of the PUCCH resource of general UE in a first slot, and to a second index which is the index of the PUCCH resource of general UE in a second slot. The first index and the second index may be defined as the indexes of the resources positioned on a pair of the same physical resource blocks (PRBs).

Abstract: Various methods of allocating uplink control channels in a communication system are implemented at a resource scheduler or a user equipment (UE). In one method the scheduler reserves resources for a downlink data channel and signals a corresponding downlink data channel grant and also reserves resources for a persistent uplink control channel for a longer duration than the data channel grant. Signaling overhead associated with a grant for this persistent uplink control channel is reduced over a full dynamic grant. A predetermined rule can be used at the scheduler and at the UE to avoid overhead signaling associated with a grant for this persistent control channel. Predetermined rules at the UE and scheduler can also be used to reserve appropriate resources and select appropriate MCS levels for control information and the control information and uplink data can be transported over a common uplink channel when a time overlap occurs between an uplink data channel and the persistent control channel.

Abstract: Methods and apparatus are described for multiplexing a hybrid automatic repeat request-acknowledgement (HARQ-ACK) bit in a physical uplink shared channel (PUSCH) by a user equipment (UE) in a communication system. A method includes acquiring configuration information on at least one offset for HARQ-ACK; determining a number of coded symbols for at least one HARQ-ACK bit based on one offset from among the at least one offset, wherein the one offset is identified according to a number of the at least one HARQ-ACK bit; obtaining the at least one HARQ-ACK bit coded based on the number of coded symbols; and multiplexing the coded at least one HARQ-ACK bit in a PUSCH.

Abstract: Techniques for supporting both localized and frequency-distributed control channel messages in the same enhanced control channel region are disclosed. An example method begins with receiving (2010) a downlink signal comprising an enhanced control region consisting of at least two sets of physical resource block (PRB) pairs. The method continues with the forming (2020) of one or more distributed enhanced control-channel elements (eCCEs) from a first set of PRB pairs by aggregating physical layer building blocks from multiple PRB pairs to form each distributed eCCE. One or more localized eCCEs are formed (2030) from a second set of PRB pairs by aggregating physical layer building blocks such that each of the localized eCCEs is formed from physical layer building blocks from within a single PRB pair of the second set. Control channel message candidates are formed (2050) from the distributed eCCEs and localized eCCEs, respectively, and decoded (2060).

Abstract: A method for transmitting control information by a base station in a wireless communication system is provided. The method includes determining a precoder to be applied to a resource and a Demodulation Reference Signal (DMRS) port, the resource being used to transmit the control information, and the DMRS port corresponding to the resource and being used to transmit a DMRS, precoding the resource and the DMRS port by using the determined precoder, and transmitting the control information and the DMRS to a user equipment.

Abstract: The present invention relates to a wireless communication system and, more particularly, to a method and a device for receiving a DL signal, by a terminal, in an FDD cell comprising a DL CC and a UL CC, the method comprising the steps of: receiving SF reconfiguration information about a UL CC; and receiving DL data on an FDD cell, wherein, if the DL data is received in a DL SF on the DL CC, the DL data is processed by means of an OFDM mode and, if the DL data is received in a DL SF reconfigured from a UL SF on the basis of the SF reconfiguration information on the UL CC, the DL data is processed by means of an SC-FDM mode.

Abstract: A wireless transmission system included at least one user equipment and a base station. The base station is operable to form a downlink control information block, modulate the downlink control information, precode the modulated downlink control information, and transmit the precoded, modulated downlink control information on at least one demodulation reference signal antenna port to the at least one user equipment. The precoded, modulated downlink control information is mapped to a set of N1 physical resource block pairs in a subframe from an orthogonal frequency division multiplexing symbol T1 to and orthogonal frequency division multiplexing symbol T2.

Abstract: Various improvements are desired for point-to-multipoint (PTM) transmission, where a network sends the PTM transmission to multiple user equipments (UEs). The apparatus may be an UE. The UE receives, from a network, a downlink transmission configuration indicating a transmit diversity downlink transmission mode of a plurality of downlink transmission modes, configures downlink communication based on the transmit diversity downlink transmission mode according to the downlink transmission configuration, and receives a service via PTM downlink transmission based on the transmit diversity transmission mode.

Abstract: The present disclosure provides a resource allocation method and system used for direct terminal-to-terminal communication, a device having base station functionality, and a terminal. The resource allocation method includes: obtaining time-frequency resource usage of the device having the base station functionality and/or state information of each D2D terminal within a coverage area of the device having the base station functionality; determining an allocation mode of allocating time-frequency resource to the each D2D terminal, according to the time-frequency resource usage of the device having the base station functionality and/or the state information of the each D2D terminal; and allocating time-frequency resource used for the direct terminal-to-terminal communication to the each D2D terminal according to the allocation mode, so as to enable the each D2D terminal to use the allocated time-frequency resource to perform the direct terminal-to-terminal communication.

Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, multi-link PDCCH monitoring. A UE may receive signaling configuring it to operate in at least one of a set of different modes of monitoring beam-pair links, wherein each beam-pair link comprises a transmit beam configured to be used by a base station (BS) for beamformed transmissions and a corresponding receive beam used by the UE. The UE may monitor at least two or more beam-pair links for downlink control channel transmissions based, at least in part, on the received signaling, and may transmit feedback to the BS based, at least in part, on the monitored beam-pair links.

Abstract: A method for cell adaptation includes receiving, by a user equipment (UE), one or more transmission parameters for a transition reference signal (TRS). One or more cells is transitioned between a reduced activity mode and an active transmission and reception mode in accordance with the TRS. The method further includes the UE determining whether or not to transmit the TRS in accordance with one or more TRS transmission criteria, and the UE transmitting the TRS in accordance with the one or more transmission parameters.

Abstract: This disclosure relates to techniques for a base station (BS) to configure default and supplementary sync signals (SS) at sub-band bandwidths in a wireless communication system. The supplementary SS may be configured in response to a determination that the BS is in wireless communications with a UE using a single narrow band radio-frequency chain. The BS may configure the supplementary SS to be proximate in frequency to a PDCCH search space currently in use by the UE. The default SS may be configured to support initial access and may have a shorter periodicity, while the supplementary SS may be configured to not support initial access and may have a longer periodicity. The BS may additionally or alternatively configure a tracking reference signal (RS), wherein the tracking RS is configured on-demand based on a current network load of the BS.

Abstract: Future LTE systems will support massive carrier aggregation that necessitates transmission of a large number of acknowledgement signals (HARQ-ACKs) in response to downlink data transmitted over multiple component carriers. Methods and apparatus for efficiently transmitting HARQ-ACK and periodic channel state information (P-CSI) bits over the PUCCH include decoding DCI received on a PDCCH, the DCI including a flag indicating a resource value from a plurality of PUCCH resource values for a PUCCH resource. UCI is encoded for transmission using the PUCCH resource, the UCI including a hybrid automatic repeat request acknowledgement (HARQ-ACK) in response to data received on a PDSCH. The PUCCH resource is selected from a plurality of PUCCH resources based on a payload size of the UCI and the resource value. Transmission power for transmitting the UCI is set using the PUCCH resource based at least on the payload size of the UCI.

Abstract: The present disclosure provides an uplink data transmission method at a terminal device, which includes: receiving in a subframe m, first resource allocation indication information from a network device; starting to listen on a channel of the LAA cell before the subframe m+n; if detecting, after a start moment of the first time unit and before a start moment of a tth time unit, that the channel is in an idle state, sending uplink data in tth to sth time units, where t is greater than 1 and less than or equal to s; and if detecting, before the start moment of the first time unit, that the channel is in the idle state, sending uplink data in the s time units. Therefore, the uplink data can be efficiently sent, and spectrum utilization of the LAA cell can be improved.

Abstract: A radio apparatus (1) notifies a radio apparatus (2) of a new reverse channel to be used in a reverse link (52) and another idle reverse channel(s). If reachability of a forward link (51) is lost by the use of a new forward channel associated with the new reverse channel, the radio apparatus (2) determines a further new forward channel from among forward channel(s) associated with the idle reverse channel(s) of which the radio apparatus (2) has been notified by the radio apparatus (1). This contributes, for example, to a safe switch of the bidirectional operating radio channels without using a redundant connection, when frequency-division multiplexing with fixed frequency spacing is used.

Abstract: There is provided a method for resource allocation for downlink transmission to at least two wireless communication devices in a wireless communication network. Simultaneous transmission to the wireless communication devices is allowed on one or more channels with at least two supported modulation alphabets of different sizes, each channel being defined by a set, called resource unit, of one or more subcarriers. The method comprises obtaining (S1), for each of the wireless communication devices, channel feedback information for each modulation alphabet the wireless communication device supports and for each resource unit on which the wireless communication device is allowed to receive a transmission.

Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present disclosure provides a transmission and reception method applying a special resource block structure in a scalable frame structure to integrally support various services in a cellular wireless communication system. According to the present disclosure, it is possible to minimize interference between adjacent resource blocks due to heterogeneous subcarrier spacings between the 5G system and the LTE system or the 5G system to improve system performance.

Abstract: Various methods and systems are provided for time domain coexistence of RF signals. In one example, among others, a method includes obtaining access to a WLAN channel during a free period of a coexisting cellular connection, providing a RDG to allow another device to transmit for a duration corresponding to at least a portion of a TXOP, and receiving a transmission during the duration. In another example, a method includes obtaining access to a WLAN channel during a transmission period of a coexisting cellular connection and providing a protection frame to defer transmissions from another device for a duration corresponding to at least a portion of a TXOP. In another example, a method includes determining a shift of a BT transaction based at least in part upon a schedule of cellular communications and shifting at least a portion of the BT transaction based upon the determined shift.

Abstract: The present invention provides methods for transmitting an SRS in a wireless access system supporting machine type communication and apparatuses for supporting the same. A method for transmitting a sounding reference signal (SRS) by a terminal in a wireless access system supporting machine type communication (MTC) according to an embodiment of the present invention may comprise the steps of: receiving an SRS transmission parameter configured for repeated transmission of an SRS from a base station; and repeatedly transmitting an SRS during a predetermined SRS repeated transmission interval according to the SRS transmission parameter.

Abstract: Certain aspects of the present disclosure provide techniques for a slot format indicator (SFI) and slot aggregation level indication in a group common physical downlink control channel (GC PDCCH) and conflict handling for the SFI. According to certain aspects, a method of wireless communication by a base station (BS) is provided. The BS can determine a slot aggregation level and a format of the aggregated slots and send a downlink control channel including a SFI indicating the format of the aggregated slot and an indication of the slot aggregation level. The UE can receive the downlink control channel including the SFI and the indication of the slot aggregation level and the UE can determine a format of a current slot based on the received SFI and slot aggregation level.

Abstract: A method of a user equipment (UE) for a beam indication in a wireless communication system is provided. The method includes receiving, from a base station (BS), downlink control information (DCI) including scheduling information for a data transmission on a downlink data channel, wherein the DCI includes an index of a spatial quasi-co-location (QCL) configuration, comparing a time offset between the data transmission and the DCI with a threshold that is pre-configured at the UE, and calculating a receive (Rx) beam based on the index of the spatial QCL configuration or a pre-configured spatial QCL assumption, receiving the data transmission based on the time offset.

Abstract: Disclosed herein is a method for receiving remaining minimum system information (RMSI) by a user equipment (UE) in a wireless communication system. The method includes receiving an synchronization signal (SS)/physical broadcast channel (PBCH) block including an SS and a PBCH in a half-frame, obtaining, via the PBCH, information related to a monitoring window for receiving a physical downlink control channel (PDCCH) for the RMSI, receiving the PDCCH within the monitoring window, and receiving the RMSI based on the PDCCH, wherein monitoring windows related to SS/PBCH blocks having consecutive indexes among SS/PBCH blocks receivable in the half-frame are at least partially overlapped each other.

Abstract: The present disclosure relates to example data transmission methods, user equipment, and access network devices in an LAA-LTE system. An example data receiving method includes determining, by user equipment, first information of a first cell. The user equipment determines a first subframe based on the first information, where a downlink data transmission length of the first subframe is less than a first threshold. The user equipment then determines a data transmission characteristic of the cell in the first subframe based on a preset condition, so as to receive, based on the data transmission characteristic, data including the first subframe. In doing so, a data transmission characteristic of a base station or a terminal is standardized, and a reference signal such as a DRS can be correctly identified.

Abstract: A method by which a small base station (BS) transmits a discovery signal (DS) in a mobile communication system is provided. The method includes a macro BS to which a component carrier (CC) of a predetermined frequency band is allocated, and at least one small base station to which N number of CCs of a frequency band different from that of the CC allocated to the macro base station are allocated. The method comprises the steps of generating the DS corresponding to predetermined information and transmitting the generated DS through a discovery channel (DCH) configured as a transmission resource of the macro base station, wherein the predetermined information is one among information on at least one CC that the small base station uses, cell ID (CID) index information of the small base station, and a sleep base station index when the small base station is in a sleep mode.

Abstract: Aspects of the present disclosure provide a method performed by a wireless device. The method generally includes identifying one or more narrowband regions within a wider system bandwidth, based on an amount of available resources in the system bandwidth, and communicating using at least one of the identified narrowband regions.

Abstract: Disclosed are methods, systems and devices for addressing effects of transmission by a transmitter in an assigned uplink communication channel on a signal received at a receiver co-located with the transmitter. In a particular embodiment, communication in an alternative communication channel may be initiated in response to a determination that uplink transmission in the assigned communication channel likely interferes with at least one radio frequency receiving function.

Abstract: The present invention relates to the technical field of mobile communications. Embodiments of the present invention provide a data transmission method and device in an unlicensed frequency band. The method comprises: determining a termination position of to-be-transmitted data in a radio frame in an unlicensed frequency band; determining position indication information according to the termination position; and sending the position indication information, so that a user equipment determines, according to the position indication information, the termination position of the to-be-transmitted data in the radio frame in the unlicensed frequency band.

Abstract: A method implemented by a network node of a cellular communication network serving a plurality of user devices is disclosed. The method comprises determining a transmission routine for each of a plurality of secondary cells (SCells) using radio channels in an unlicensed spectrum. Each transmission routine has an associated transmission period based on a downlink (DL) buffer status. The method also comprises time multiplexing transmission from the plurality of SCells to the plurality of user devices by executing the transmission routines for their respective time periods. Network nodes, apparatus, computer programs associated with the method are also disclosed.

Abstract: Aspects of the present disclosure relate to methods and apparatus for allocating (or assigning) channels to different groups of wireless nodes in the case of co-channel coexistence between the different groups and interference to one or more other wireless nodes. One example method generally includes evaluating, for different assignments of channels to different groups of wireless devices that share bandwidth, an amount of transmission limitation imposed due to higher-tier protection, and assigning one or more of the channels to each of the groups, based on the evaluation.

Abstract: A wireless communication system may allocate uplink resources to configure coexisting interleaved and contiguous uplink transmissions. Operation using different waveform types may address bandwidth occupancy requirements, power spectral density (PSD) limitations, etc. A carrier bandwidth may be split into regions allocated for interlaced resource allocations and contiguous resource allocations for frequency division multiplexing (FDM) based coexistence. To achieve coexistence of such waveform types, a base station may indicate a waveform type, a transmission carrier bandwidth or channel, and a resource block allocation (e.g., an interlace pattern, certain ranges within the carrier bandwidth, etc.) for uplink transmissions. In some cases, channel contention procedures (e.g., Listen Before Talk (LBT)) and power constraints (e.g., power spectral density (PSD) limitations) may be based on the waveform type associated with the uplink transmission.

Abstract: Embodiments provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).

Abstract: Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section provided in a base station: modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification.

Abstract: In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group.

Abstract: A communications device transmitting/receiving data to/from a mobile communications network includes a transmitter to transmit data to the mobile communications network via a wireless access interface, a receiver to receive data from the mobile communications network via the wireless access interface, and a controller. The wireless access interface includes plural time divided temporal units and in each temporal unit a down-link control channel and a down-link shared channel. The temporal units may be sub-frames of an LTE carrier. The controller can control the receiver to receive downlink control channel information transmitted by the mobile communications network in one or more control channel elements of the downlink control channel, and to receive the downlink control channel information by searching the downlink control channel in a predetermined sub-set of plural possible sets of control channel elements in one or more of the temporal units according to a fixed aggregation level.