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 Carrier aggregation scheduling apparatus, carrier aggregation scheduling method, and base station patent thumbnailCarrier aggregation scheduling apparatus, carrier aggregation scheduling method, and base station
A carrier aggregation apparatus includes a first carrier aggregation scheduler, which is configured to receive user information of a first user equipment ue, carrier information for carrier aggregation, and information about a first baseband board and to schedule carriers according to the user information of the first ue, the carrier information for carrier aggregation, and the information about the first baseband board. The scheduling result indicates carriers used for the first ue..
Huawei Technologies Co., Ltd.


 Secondary cell activation/deactivation in carrier aggregation patent thumbnailSecondary cell activation/deactivation in carrier aggregation
In one embodiment, a method of operating a radio access node is provided. The method comprises determining whether support from a secondary cell is required for a wireless device to communicate with the radio access node, and, in response to determining that support from the secondary cell is required, calculating a modified channel condition outer-loop value for the secondary cell; and using the modified channel condition outer-loop value in an initial activation decision step for the secondary cell, the initial activation decision step may comprise activating the secondary cell in response to determining that the sum of a device reported channel condition value and the modified channel condition outer-loop value is above an activation threshold.
Telefonaktiebolaget L M Ericsson (publ)


 Data transmission method and apparatus patent thumbnailData transmission method and apparatus
Embodiments of the present invention disclose a data transmission method and apparatus. The data transmission method includes: performing, by a packet data convergence protocol pdcp entity, lossless transmission on pdcp protocol data units pdus or pdcp service data units sdus, where each of the pdcp pdus or the sdus is associated with one serial number.
Huawei Technologies Co., Ltd.


 Transmitter for carrier aggregation patent thumbnailTransmitter for carrier aggregation
Provided is a transmitter. The transmitter includes a signal combiner configured to amplify a first differential radio frequency (rf) signal modulated to be transmitted through a first frequency band and a second differential rf signal modulated to be transmitted through a second frequency band non-adjacent to the first frequency band and summate the amplified first differential rf signal and the amplified second differential rf signal in a current mode to generate an rf signal and a power amplifier configured to amplify the generated rf signal..
Electronics And Telecommunications Research Institute


 Antenna  providing mimo and carrier aggregation for mobile devices patent thumbnailAntenna providing mimo and carrier aggregation for mobile devices
Multi-element antenna apparatus for mobile devices and methods of utilizing the same. In one embodiment, the antenna apparatus includes three antenna elements configured to operate in a plurality of frequency bands.
Pulse Finland Oy


 Determination of ue band and synchronization capability in dual connectivity patent thumbnailDetermination of ue band and synchronization capability in dual connectivity
Methods for signaling and receiving mobility terminal capabilities with respect to synchronized or unsynchronized dual connectivity operations. An example method suitable for implementation in a mobile terminal configured for dual connectivity information includes receiving (810) a request from a network node for signaling capability information to the network node.
Telefonaktiebolaget L M Ericsson (publ)


 Modification of secondary cells in carrier aggregation patent thumbnailModification of secondary cells in carrier aggregation
A wireless device transmits channel state information (csi) fields of a secondary cell on a first cell. The wireless device receives, in subframe n, a message comprising one or more configuration parameters indicating that csi transmission resources for the secondary cell is on a second cell different from the first cell.
Ofinno Technologies, Llc


 Secondary cell deactivation in carrier aggregation patent thumbnailSecondary cell deactivation in carrier aggregation
A plurality of physical uplink control channel (pucch) groups comprise a primary pucch group comprising a primary cell and a secondary pucch group comprising a pucch secondary cell. A wireless device keeps the pucch secondary cell active if a deactivation timer of the pucch secondary cell expires and there is an activated secondary cell in the secondary pucch group.
Ofinno Technologies, Llc


 Pucch management for enhanced carrier aggregation patent thumbnailPucch management for enhanced carrier aggregation
A method, an apparatus, and a computer readable-medium for wireless communication are provided. The apparatus receives data via a first group of component carriers (ccs) of a plurality of groups of aggregated ccs.
Qualcomm Incorporated


 Terminal device, base station apparatus, communication method, and integrated circuit patent thumbnailTerminal device, base station apparatus, communication method, and integrated circuit
There is provided a terminal device which includes a transmission unit that transmits hybrid automatic retransmit request response information. In a case where one serving cell is configured in the terminal device in time division duplex, or in a case where serving cells of which the number is more than one are configured in the terminal device and uplink/downlink configurations of all of the configured serving cells are the same as each other, the transmission unit transmits the hybrid automatic retransmit request response information in an uplink subframe n, in response to detection of physical downlink control channel transmission in a subframe (n−k).
Sharp Kabushiki Kaisha


System and selecting and adapting carrier aggregation configurations


A method for selecting carrier aggregation (ca) configurations includes determining whether a first wireless device is operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band. If the first wireless device is not operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band, a first ca configuration is selected for a second wireless device.
Telefonaktiebolaget Lm Ericsson (publ)


Uplink signal transmission in carrier aggregation


A physical uplink control channel (pucch) secondary cell is in a first timing advance group. A wireless device receives a command initiating transmission of a preamble on the first tag.
Ofinno Technologies, Llc


Carrier aggregation across different radio access technologies


Systems, methods, apparatuses, and computer-program products for performing carrier aggregation across different radio access technologies are disclosed. For example, in some instances a method of wireless communication includes transmitting, using a first wireless communication device, control information to a second wireless communication device via a first radio access technology (rat), the control information including control information for a second rat; and receiving, at the first wireless communication device, an acknowledgement (ack) or negative acknowledgement (nack) from the second wireless communication device via the first rat, the ack or nack being related to communications of the second wireless communication device conducted via the second.
Qualcomm Incorporated


Radio configuration in a carrier aggregation


A plurality of cells are grouped into a plurality of physical uplink control channel (pucch) groups comprising a primary pucch group and a secondary pucch group. The base station detects a radio link issue with a pucch secondary cell while one or more other cells in the secondary pucch group have acceptable radio link quality.
Ofinno Technologies, Llc


Method for transmitting control information and same


A method and a user equipment for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in time division duplex (tdd) are discussed, the user equipment being configured with a first component carrier (cc) and a second cc having different uplink-downlink configurations, the user equipment being configured to transmit a hybrid automatic repeat request-acknowledgement (harq-ack) response based on channel selection. The method according to an embodiment includes determining and transmitting harq-ack bits.
Lg Electronics Inc.


Lte carrier aggregation configuration on tv white space bands


An apparatus, method and computer program product comprise controlling cellular network based communication in a primary cell on a frequency band related to the cellular network and by using an uplink and downlink configuration specific to the primary cell; controlling communication in a secondary cell on a frequency band related to a television white space channel and by using an uplink and downlink configuration specific to the secondary cell; measuring radio interference on a temporarily set uplink related carrier on the secondary cell based on information on the temporarily set uplink related carrier received on a downlink related carrier on the primary cell; and reporting results of radio interference measurement via the primary cell.. .
Broadcom Corporation


Receiver for simultaneous signals in carrier aggregation


Methods and apparatus, including computer program products, are provided for receivers. In one aspect there is provided an apparatus.
Nokia Technologies Oy


Apparatus, system, and toggling carrier aggregation


An apparatus, system, and method optimize a manner in which carrier aggregation (ca) is used. The apparatus comprises a transceiver and processor.
Apple Inc.


Communication system, network node, communication device, methods and computer programs


The disclosure relates to aspects of a communication system comprising a cellular communication network and at least a communication device interacting with the cellular communication network. The cellular communication network comprises at least a network node configured to receive, from the communication device, signalling about carrier aggregation communication capabilities suitable for d2d and carrier aggregation communication of the communication device; determine a configuration for the communication device regarding d2d communication and carrier aggregation based on at least the received signalling; and transmit the configuration to the communication device.
Telefonaktiebolaget L M Ericsson (publ)


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Method and controlling uplink power in a wireless access system


A method and a user equipment (ue) for receiving a power headroom report in a wireless access system that supports a carrier aggregation are discussed. The method according to an embodiment includes transmitting by an enb to a ue an uplink transmission grant allocating uplink resources on a predetermined subframe in an anchor uplink component carrier (ul cc); and receiving the power headroom report by the enb from the ue.
Lg Electronics Inc.


Method and performing and reporting measurements by user equipment configured with multiple carriers in mobile communication systems


A communication method and system for supporting a high data transmission rate fuse 5g communication systems with iot technology to transmit data at a high rate after 4g systems. The method for a terminal in a wireless communication system supporting carrier aggregation includes receiving a control message including indication information, the indication information indicating that physical uplink control channel (pucch) feedback for at least one secondary cell (scell) is transmitted on a scell; identifying whether the scell is configured to the terminal and is activated; and if the scell is configured to the terminal and is activated, obtaining type 2 power headroom information for the scell..
Samsung Electronics Co., Ltd.


Node and carrier aggregation compatibility reporting of a wireless device


Example embodiments presented herein are directed towards a base station (401), and corresponding method therein, for obtaining a carrier aggregation compatibility report comprising a subset of a total number of frequency band and/or frequency band combinations supported by a wireless device. Example embodiments presented herein are also directed towards a wireless device (501), and corresponding method therein, for providing a carrier aggregation compatibility report comprising a subset of the total number of frequency bands and/or frequency band combinations supported by the wireless device..
Telefonaktiebolaget L M Ericsson (publ)


Method for transmitting control information and same


A wireless communication system is disclosed. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in tdd includes: generating a first harq-ack (hybrid automatic repeat request-acknowledgement) set for a first cell using a value m; generating a second harq-ack set for a second cell using the value m; and transmitting a bit value corresponding to a third harq-ack set including the first harq-ack set and the second harq-ack set in an uplink subframe n, wherein m=max(m1, m2), max(m1, m2) representing a value being equal to or larger than not smaller between m1 and m2, wherein m1 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the first cell, and m2 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the second cell, wherein the first cell and the second cell have different ul-dl configurations..
Lg Electronics Inc.


Method and device for activating secondary carrier in wireless communication system for using carrier aggregation technique


The present invention proposes a method for activating secondary carriers in addition to the primary carrier in a wireless communication system supporting carrier aggregation technology. Through the present invention, the ue sorts the operations for activating an scell into two groups that are executed at different timings, thereby facilitating communication without malfunctioning.
Samsung Electronics Co., Ltd.


Lte/wi-fi aggregation for existing network nodes


In accordance with the exemplary embodiments of the invention there is at least a method and apparatus to determine to use carrier aggregation for signaling with a user equipment in a communication network; based on the determining, activate selected bearers in the communication network for the carrier aggregation; and coordinate the carrier aggregation in the communication network over the selected bearers comprising sharing responsibilities of packet data protocols handling user data and radio link control functions over the selected bearers.. .
Nokia Solutions And Networks Oy


Configuring component carriers in carrier aggregation


A system and method for configuring component carriers in carrier aggregation is disclosed. The method comprises communicating a carrier aggregation capability for a selected ue to an enhanced node b (enode b) configured to provide service for a plurality of ues.
Intel Corporation


Fast enhanced component carrier activation


Methods, systems, and devices for wireless communication are described. A user equipment (ue) may be configured for carrier aggregation (ca) operation.
Qualcomm Incorporated


Carrier aggregation with power headroom report


Methods, apparatuses, and software can be used for providing power headroom reporting in a telecommunication system. A method can include configuring a user equipment to send a power headroom report control element in uplink, wherein the power headroom report control element includes a bitmap indicating which power headroom reports are being reported.
Cellular Communications Equipment Llc


Harq operation when tdd cell and fdd cell are included in carrier aggregation


One disclosure of the present specification provides a method for operating a harq from user equipment (ue). The method comprises the steps of: the ue receiving downlink data from each cell, when at least one tdd-based cell and at least one fdd based cell are established according to carrier aggregation (ca), a specific tdd-based cell is established as a primary cell of the carrier aggregation (ca), and the at least one fdd-based cell is established as a secondary cell of the carrier aggregation (ca); the ue confirming a pucch format to be used for transmitting a harq ack/nack for the downlink data; and the ue determining the number of bits for transmitting the harq ack/nack when use of the specific pucch format for transmitting the harq ack/nack is confirmed..
Lg Electronics Inc.


Measuring device and measuring dynamically measuring carrier aggregation signals


A measuring device for measuring a response of a device under test to a carrier aggregation signal is provided. The measuring device comprises a signal generator configured to generate the carrier aggregation signal, which comprises a first carrier signal and/or a second carrier signal.
Rohde & Schwarz Gmbh & Co. Kg


User terminal, base station and transmission control method


The present invention is designed so that uplink transmission is carried out adequately even when ca to apply different duplex modes between multiple cells is executed. A user terminal communicates with an fdd cell and a tdd cell by employing carrier aggregation, and has a receiving section that receives dl signals transmitted from each cell, a transmission control section that allocates and transmits delivery acknowledgement signals in response to the received dl signals, channel quality information or scheduling requests in predetermined ul subframes, and, when a ul subframe is configured in both the fdd cell and the tdd cell, the transmission control section transmits a delivery acknowledgement signal in one ul subframe or both ul subframes, and controls whether or not to transmit channel quality information or a scheduling request having an overlapping transmission timing with the delivery acknowledgement signal..
Ntt Docomo, Inc.


Control signaling in lte carrier aggregation


Methods and devices may be provided for aggregating component carriers in the licensed spectrum with at least one component carriers in the licensed exempt spectrum. Control information may be processed in a wireless transmit/receive unit (wtru) while receiving and sending information on a primary component carrier (pcc) and a supplementary component carrier (suppcc).
Interdigital Patent Holdings, Inc.


Method and measurement reporting in carrier aggregation wireless communication systems


When detecting occurrence of an event for transmitting a measurement report of a radio condition of a cell at a frequency set for a base station apparatus, to the base station apparatus (3) communicating with a terminal apparatus (2), the terminal apparatus (2) in a wireless communication system (1) creates a measurement report including information indicating radio conditions of cells at a frequency at which the event occurred and at another different frequency. The base station apparatus (3) controls whether or not to perform handover of the terminal apparatus (2) to another cell, on the basis of the measurement report transmitted from the terminal apparatus (2).
Sun Patent Trust


Method and performing carrier management in carrier aggregation system


A carrier aggregation system, includes transmitting a first signaling to configure one additional carrier to a user equipment (ue) at which the additional carriers are deactivated, to configure a timer to each additional carrier for the ue by which the carrier is deactivated after the corresponding timer expiry; transmitting a second signaling that carries an activation indication to the ue to activate one deactivated additional carrier in the configured carriers for the ue; activating at least one deactivated additional carrier, starting the timer, controlling the ue to start physical downlink control channel (pdcch) monitoring and physical downlink shared channel (pdsch) receiving on the activated additional carrier; transmitting pdcch on the activated additional carrier for the ue, by which the corresponding timer being restarted; deactivating the activated carrier after the corresponding timer expiry, controlling the ue to stop the pdcch monitoring and the pdsch receiving on the deactivated additional carrier.. .
Fujitsu Limited


Random access method and apparatus of ue in mobile communication system


A method and an apparatus for performing random access and uplink transmission of a user equipment (ue) supporting carrier aggregation (ca) are provided. The method includes determining whether a scheduling request (sr) is pending, determining, when the sr is pending, whether an uplink transmission resource is available in a current transmission time interval (tti), determining, when the uplink transmission resource is not available, whether a physical uplink control channel (pucch) resource is configured for transmission of the sr, and initiating, when the pucch resource is not configured, a random access process in a primary cell.
Samsung Electronics Co., Ltd.


User terminal, base station and radio communication method


The present invention is designed to carry out uplink transmission adequately even when ca is executed by applying different duplex modes between multiple cells. A user terminal communicates with an fdd cell and a tdd cell that employ carrier aggregation, and has a receiving section that receives dl signals transmitted from each cell, and a feedback control section that allocates and feeds back delivery acknowledgement signals in response to the dl signals in a predetermined ul subframe, and, regardless of which cell is configured as a primary cell, the feedback control section, when transmitting only a delivery acknowledgement signal in response to the dl signal of one cell, transmits the delivery acknowledgement signal from the one cell by using a pucch resource that is determined from a downlink control channel resource of the dl signal, and, when transmitting delivery acknowledgement signals in response to the dl signals of both cells, transmits the delivery acknowledgement signals by using a pucch resource of one or both of the cells..
Ntt Docomo, Inc.


Eimta in enhanced carrier aggregation


The disclosure provides techniques for signaling tdd configurations with downlink control information (dci). A user equipment receives dci, and determines a first portion of the dci corresponding to a first tdd uplink-downlink configuration for a first group of component carriers (ccs) of a plurality of carrier groups and a second portion of the dci corresponding to a second tdd uplink-downlink configuration for a second group of ccs of the plurality of carrier groups, where a bit length of the first portion is different from a bit length of the second portion.
Qualcomm Incorporated


Uplink signal sending method and user equipment


An uplink signal power reduction method applied to a carrier aggregation system, comprises: an ue being configured with multiple timing advances, when symbols in uplink channels carried on different carriers are not aligned in the time domain and symbols on different carriers are overlapped in the time domain, if a sum of the transmission power of each uplink channel of said ue is determined to be bigger than a maximum transmission power configured for said ue, then an enb instructing said ue to reduce a transmission power of said uplink channels in which symbols are overlapped in the time domain on different carriers.. .
Zte Corporation


User terminal, base station, and radio communication method


The present invention is designed so that uplink transmission is carried out adequately even when ca is executed by applying different duplex modes between multiple cells. A user terminal communicates with an fdd cell and a tdd cell by using carrier aggregation, and has a receiving section that receives dl signals transmitted from the cells, and a feedback control section that allocates and feeds back transmission acknowledgment signals in response to each dl signal in an uplink control channel of a predetermined cell, with reference to tables in which at least the states of transmission acknowledgment signals, pucch resources and qpsk symbol points are associated with each other, and, in this user terminal, the tables define different contents between the fdd cell and the tdd cell, and regardless of the cell where downlink control information is detected and the cell where downlink shared data is detected, the feedback control section uses the table that corresponds to the duplex mode of the predetermined cell where the transmission acknowledgment signals are transmitted..
Ntt Docomo, Inc.


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Radio receiver for carrier aggregation


A radio receiver circuit configurable to operate in a carrier-aggregation (ca) mode and in a non-ca mode is disclosed. It comprises a first receive path arranged to be operatively connected to an antenna and a second receive path arranged to be operatively connected to the same antenna.
Telefonaktiebolaget Lm Ericsson (publ)


User equipment and methods of bearer operation for carrier aggregation


Embodiments of a user equipment (ue) to support dual-connectivity with a master evolved node-b (menb) and a secondary enb (senb) are disclosed herein. The ue may receive downlink traffic packets from the menb and from the senb as part of a split data radio bearer (drb).
Intel Ip Corporation


Method and controlling uplink control information transmission in wireless communication system providing widebandwidth services via carrier aggregation


A method whereby a user equipment (ue) transmits hybrid automatic repeat request (harq) acknowledgement (ack)/negative ack (nack) information corresponding to downlink data received from a corresponding base station (enb) in a long term evolution-advanced (lte-a) system supporting carrier aggregation (ca) is provided. When physical uplink shared channel (pusch) transmission is not scheduled at the time of transmission of harq ack/nack information, the ue transmits harq ack/nack information via physical uplink control channel (pucch).
Samsung Electronics Co., Ltd.


System and reducing data loss during a serving cell change in a multi-flow hsdpa communication network


A method and apparatus for wireless communication may provide for reduced data loss during mobility events in a wireless communication network capable of downlink carrier aggregation. Some aspects of the disclosure provide for maintaining data corresponding to a flow in at least one buffer at a node b when the node b acts as a serving cell for the same ue both before and after a serving cell change.
Qualcomm Incorporated


User terminal, base station and radio communication method


The present invention is designed so that uplink transmission is carried out adequately even when ca to apply different duplex modes between multiple cells is executed. A user terminal communicates with an fdd cell and a tdd cell by employing carrier aggregation, and has a receiving section that receives dl signals transmitted from each cell, and a feedback control section that allocates delivery acknowledgement signals in response to the dl signals received, by allocating the delivery acknowledgment signals in a predetermined ul subframe, and, regardless of the cell that is configured as the primary cell, when ul subframes are configured in both the fdd cell and the tdd cell, the feedback control section feeds back the delivery acknowledgement signals by using a ul subframe of one or both of the cells, and, when a ul subframe is configured only in the fdd cell, the feedback control section feeds back the delivery acknowledgement signals by using the ul subframe of the fdd cell..
Ntt Docomo, Inc.


Sounding reference signal transmission in carrier aggregation


A cell-specific sounding reference symbol (srs) subframe configuration and ue-specific srs configuration are defined for carrier aggregation. For the cell-specific srs subframe configuration, the same cell-specific srs subframes are configured for all uplink (ul) carrier components (ccs).
Blackberry Limited


Radio frequency front end circuitry for carrier aggregation


Radio frequency (rf) front end circuitry includes first rf multiplexer circuitry and second rf multiplexer circuitry. The first rf multiplexer circuitry is a quadplexer, while the second rf multiplexer is a triplexer.
Rf Micro Devices, Inc.


Base station and uplink control information scheduling carrier aggregation communication system


A base station and an uplink control information scheduling method for a carrier aggregation communication system which provides a user equipment with a plurality of component carriers are provided. The base station creates an uplink control information schedule for uplink control information generated by the user equipment and provides the user equipment with the uplink control information schedule so that the user equipment transmits the uplink control information on the component carriers according to the uplink control information schedule.
Institute For Information Industry


Joint control for enhanced carrier aggregation


Methods, systems, and devices for wireless communication are described. Wireless devices may use enhanced carrier aggregation (eca) to increase the throughput of a communications link, and control schemes for reducing signaling overhead may be employed to support eca operation.
Qualcomm Incorporated


Soft buffer management for enhanced carrier aggregation


Methods, systems, and devices for wireless communication are described. A user equipment (ue) may determine a reference number for component carriers (ccs) for partitioning a soft buffer when the number of the ccs configured for carrier aggregation (ca) operation exceeds a threshold.
Qualcomm Incorporated


Aperiodic channel state information (csi) reporting for carrier aggregation


Aperiodic channel state information (csi) reporting is discussed. An example user equipment includes a receiver circuit, processor, and transmitter circuit.
Intel Corporation


Method and transmitting downlink control channel information in carrier aggregation system


A method for transmitting control information by a base station in a communication system using a plurality of serving cells comprises transmitting is provided. The method includes a terminal, an identifier of a second serving cell identifying where control information regarding a first serving cell is transmitted, transmitting, to the terminal, a predetermined value of a carrier identifier used in the second serving cell, and transmitting the control information regarding the first serving cell including the carrier identifier having the predetermined value through the second serving cell..
Samsung Electronics Co., Ltd.


System and resource allocation for massive carrier aggregation


A method for allocating network resources to user equipments (ues) includes configuring a first group of component carriers with resource allocations indicated by a joint downlink control information (dci) message, configuring a second group of component carriers with resource allocations for each component carrier indicated by a dedicated dci message, generating the joint dci message indicating first resource allocations for a first subset of the first group of component carriers, generating a plurality of dedicated dci messages, wherein each dedicated dci message indicates a second resource allocation for a component carrier in a second subset of the second group of component carriers, mapping each one of the joint dci message and the plurality of dedicated dci messages to a control channel, and sending the control channels to the ue.. .
Futurewei Technologies, Inc.


Forming carrier aggregation timing advance groups in a heterogeneous network


An enodeb operable to maintain timing advance groups (tags) in a heterogeneous network (hetnet) is disclosed. The enodeb can form a timing advance group (tag) for one or more serving cells when a same timing advance applies to the one or more serving cells.
Intel Corporation


Apparatus and performing uplink power control in wireless communication system supporting carrier aggregation


A method of an apparatus controls transmit power of uplink channels in a wireless communication system. The method includes configuring, for a ue, a primary serving cell on which a first uplink control channel is transmitted from the ue, configuring, for the ue, a secondary serving cell on which a second uplink control channel is transmitted from the ue, configuring a first tpc command and a second tpc command in a single tpc command group, the first tpc command being associated with transmit power of the uplink control information of the primary serving cell, the second tpc command being associated with transmit power of the uplink control information of the secondary serving cell, scrambling downlink control information based on an identifier associated with a tpc, the downlink control information comprising the single tpc command group; transmitting, to the ue, a downlink control channel comprising the scrambled downlink control information..
Innovative Technology Lab Co., Ltd.


Handover performed in consideration of uplink/downlink component carrier setup


The present invention relates to a wireless communication system which supports carrier aggregation. More particularly, the present invention relates to a method and to an apparatus for enabling a user equipment to perform a handover in a wireless communication system which supports carrier aggregation.
Lg Electronics Inc.


Measuring device and measuring method retroactively checking preconditions


A measuring device serves the purpose of performing measurements of a measuring signal generated by a device under test. The measuring signal uses carrier aggregation of at least a first carrier and a second carrier.
Rohde & Schwarz Gmbh & Co. Kg


Carrier aggregation enhancements for unlicensed spectrum and 5g


A user equipment (ue) may receiving, from an evolved nodeb (enb), configuration information related to a restriction that one or more radio bearers are transmitted only on a subset of serving cells used in carrier aggregation of a long term evolution (lte), lte-advanced (lte-a), and or 5g wireless network. The ue may transmit the one or more radio bearers to the enb on one or more serving cells of the subset of serving cells in response to receiving the configuration information..
Intel Ip Corporation


Dynamic tdd ul/dl configuration indication for tdd eimta in carrier aggregation


Systems, methods, apparatuses, and computer program products for time division duplex (tdd) uplink/downlink (ul/dl) configuration indication for tdd interference management and traffic adaptation (eimta) are provided. One method includes providing, by a network node, a time division duplex (tdd) uplink/downlink (ul/dl) configuration indication pattern.
Nokia Technologies Oy


Devices and methods for epdcch monitoring in wireless communication systems


Devices and methods of reducing blind decoding attempts of user equipment (ue) suing carrier aggregation are generally described. The ue may determine at least one subframe in a modification period to monitor for a physical downlink control channel (pdcch) formed in accordance with a discontinuous transmission downlink control information (dtx dci) format.

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Method for selecting an access network based on carrier aggregation information


Mobile devices, network nodes and methods of operating the same according to one aspect, there is provided a method of operating a mobile device that is configured for use in a first radio access network that uses a first radio access technology and a second radio access network that uses a second, different, radio access technology, the mobile device aggregating a plurality of carriers in the first radio access network, the method comprising obtaining information for, or pertaining to, one or more of the plurality of carriers in the first radio access network (101); and processing the obtained information for a single carrier to determine an action for the mobile device to take with respect to the second radio access network (103).. .
Telefonaktiebolaget L M Ericsson (publ)


User terminal, base station and radio communication method


The present invention is designed to enable appropriate transmission and reception in user terminals even when ca is executed by applying different duplex modes between multiple cells. A user terminal communicates with an fdd cell and a tdd cell by using carrier aggregation, and has a transmitting/receiving section that receives dl signals transmitted from each cell and transmits ul signals to each cell, and a report control section that controls reporting of capability information regarding simultaneous transmission and reception of the dl signals and ul signals in the transmitting/receiving section.
Ntt Docomo, Inc.


Method and management of frequency-division-duplex and time-division-duplex carrier aggregation


A method and apparatus may predict a link quality. The method may also include determining a primary cell for a user equipment based on the predicted link quality.
Nokia Solutions And Networks Oy


Multi-rat heterogeneous carrier aggregation


A network node for facilitating data transfer is disclosed, comprising: a routing module configured to receive network link capacity information; a first radio interference operating on a first radio access technology and coupled to the routing module; and a second radio interface operating on a second radio access technology and coupled to the routing module, wherein the routing module is configured to receive packets directed to a third virtual radio interface and route the packets to one or both of the first and the second radio interfaces to provide throughput at the third virtual radio interface that is greater than throughput available via either the first or the second radio interfaces independently.. .
Parallel Wireless, Inc.


Devices and methods for harq-ack feedback scheme on pusch in wireless communication systems


Devices and methods of reducing overall hybrid automatic repeat request-acknowledgment (harq-ack) of user equipment (ue) using a large amount of carrier aggregation are generally described. The ue may receive a subframe from an enhanced nodeb (enb).

Uplink control information transmission using pusch in enhanced carrier aggregation


Enhanced carrier aggregation may require development of mechanisms to enable carrier aggregation for an increased number of component carriers. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus for wireless communication are provided.
Qualcomm Incorporated


Method and apparatus of uplink scheduling and harq timing


The present disclosure relates to an apparatus and method for controlling an uplink (ul) scheduling and hybrid automatic repeat request (harq) timing supported in a tdd-fdd ca environment. The method includes receiving, on a first serving cell, at least one of a first ul grant and a first physical harq indicator channel (phich) about a second serving cell through a cross-carrier scheduling, and receiving, on the second serving cell, at least one of a second ul grant and a second phich about the second serving cell through a self scheduling.
Innovative Technology Lab Co., Ltd.


Channel state information for enhanced carrier aggregation


Methods, systems, and devices are described for wireless communication in a system that supports enhanced carrier aggregation (eca). An eca configuration with a large number of component carriers (ccs) may include ccs grouped into channel state information (csi) reporting groups.
Qualcomm Incorporated


Harq feedback using carrier aggregation


Embodiments provide methods and devices for data transmission and assignment of uplink control channel resources in an uplink fdd carrier, for enabling a recipient to provide harq feedback for data transmitted in the downlink using carrier aggregation of a downlink fdd carrier and at least one tdd carrier. A method includes associating each downlink subframe in the downlink fdd carrier with an uplink control channel subframe in the uplink fdd carrier, associating each downlink subframe and special subframe in the tdd carrier with an uplink control channel subframe in the uplink fdd carrier, assigning uplink control channel resources in the uplink fdd carrier to the recipient, according to the made associations, and transmitting data on said downlink fdd carrier and/or tdd carrier, to be received by the recipient..
Huawei Technologies Co., Ltd.


Uplink inter-site carrier aggregation based on ue transmission power and secondary cell load


A method for use in a user equipment, including transferring data to the base station of a first cell (a1); sending an uplink scheduling request to the base station of a second cell (a3) in dependence on the condition that the user equipment has sufficient transmission power for performing inter-site carrier aggregation (a2); receiving an uplink resource allocation message from the base station of the second cell (a5) if the load of the second cell satisfies predetermined conditions (a4); transferring data to the base stations of the first and second cells via carrier aggregation (a6).. .
Nokia Solutions And Networks Oy


Control information feedback for ecc on pcell


Described herein are methods, systems, and apparatus for communicating control information over a primary component carrier (pcell). In one example, a method for wireless communication is described that includes communicating using an enhanced component carrier (ecc) on at least a secondary component carrier (scell) in a carrier aggregation (ca) configuration.
Qualcomm Incorporated


Method and communicating by using different types of carriers in radio communication system supporting carrier aggregation


Provided through the present application are a method and an apparatus for use in a radio communication system, which supports carrier aggregation and carries out communication in subframe units. More specifically, user equipment operating in a first type carrier for receiving from a base station, a first piece of control information, which is related to the first type carrier and a second type carrier that support the carrier aggregation, can measure a radio signal to carry out radio resource management with respect to the first type carrier by using a first reference signal, which is included in the first type carrier, and/or a second reference signal, which is included in the second type carrier..
Lg Electronics Inc.


Almost blank subframe in carrier aggregation


A base station transmits a message to a plurality of wireless devices in connected mode. The message comprises a subframe allocation bitmap indicating a plurality of subframes.
Ofinno Technologies, Llc


Method and integrating different radio access technologies using carrier aggregation


Methods and apparatuses are described. A method of configuring a radio resource control (rrc)_connected wireless transmit/receive unit (wtru) for wireless local area network (wlan) cell measurement includes receiving, by the wtru, an rrc connectionreconfiguration message.
Interdigital Patent Holdings, Inc.


Method for transmitting multiplexed harq feedbacks in a carrier aggregation system and a device therefor


The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting multiplexed harq feedbacks in a carrier aggregation system, the method comprising: configuring a first cell with pucch resource and a second cell with pucch resource; configuring zero or more third cells without pucch resource; generating a first harq feedback by multiplexing harq feedbacks of all harq processes of the first cell and third cells associated with the first cell; generating a second harq feedback by multiplexing harq feedbacks of all harq processes of the second cell and third cells associated with the second cell; and transmitting the first harq feedback on the first cell with pucch resource and the second harq feedback on the second cell with pucch resource..
Lg Electronics Inc.


Method and device for transmitting random access and other uplink channels of other cell in mobile communication system carrier aggregation


The present invention relates to a transmission of a random access in a specific cell from a plurality of serving cells in a mobile communication system using a carrier aggregation technology, and a method for efficiently transmitting uplink channels other than the random access in another cell. In particular, the method for a terminal to transmit an uplink channel to a base station comprises the steps of: confirming whether an uplink channel for a second carrier having an uplink timing different from a first carrier is included in a subframe transmitting a random access preamble for the first carrier; if included, confirming whether the sum of the electric power required for the transmission of the random access preamble and the electric power required for the transmission of the uplink channel exceeds the maximum transmission electric power of the terminal; and, if exceeding, transmitting the random access preamble preferentially before the uplink channel.
Samsung Electronics Co., Ltd.


User equipment and capability reporting method


The present disclosure relates to some techniques for controlling carrier aggregation properly in a radio communication system including a mixture of harmonic-supported user equipments and harmonic-unsupported user equipments. One aspect of the present invention relates to a user equipment having a carrier aggregation function, comprising: a communication control unit configured to control radio communication with a base station; a capability management unit configured to manage a requirement on transmission and reception characteristics supported by the user equipment for each combination of carrier aggregation frequency bands; and a capability reporting unit configured to report the requirement on the transmission and reception characteristics supported by the user equipment as a capability to the base station..
Ntt Docomo, Inc.


Method and handling carrier aggregation and related signaling


A method and apparatus can be configured to receive, by the apparatus, a configuration for a carrier. The carrier deploys at least one cell to be used for carrier aggregation.
Nokia Technologies Oy


Communication of security key information


Technology for communicating security key information from a macro enb is disclosed. Security key information associated with the macro evolved node b (enb) may be determined.
Intel Ip Corporation


Apparatus and carrier aggregation and fast network switching with a single-baseband-modem, carrier-aggregation-capable wireless-communication device


Disclosed herein are systems and methods for carrier aggregation and fast network-switching with a single-baseband modem, carrier-aggregation-capable wireless-communication device (wcd). One embodiment takes the form of a system that includes a first rf integrated circuit (rfic), a second rfic, a baseband processor coupled to the first and second rfics, a first carrier-aggregation circuit, a fast-network-switching connection manager coupled to the baseband processor, and a mode controller coupled to the baseband processor and to the fast-network-switching connection manager.

Method and apparatus of configuring timing of uplink transmission


The present disclosure is to provide a method of configuring timing of uplink (ul) transmission, comprising, receiving, by a user equipment (ue), configuration information on carrier aggregation (ca) of at least one frequency division duplex (fdd) cell and at least one time division duplex (tdd) cell; and adjusting, by the ue, starting timing of a ul subframe in a cell participating in the ca.. .

Method and uplink control signaling with massive carrier aggregation


A method of operating a wireless communication system is disclosed. The method includes configuring a user equipment (ue) for carrier aggregation with n serving cells, where n is a positive integer.

Dynamic carrier assignment of carrier aggregation in an lte-advanced system


Various embodiments of a scheme of dynamic activation and release of carrier aggregation in an lte-advanced system are provided. When transmission need of an lte-advanced user is large and the user is within coverage of at least one secondary component carrier, carrier aggregation is activated while a certain amount of resource of each component carrier is preserved to support carrier aggregation.

System and carrier aggregation for wireless local area networks


Embodiments are provided herein for improving carrier aggregation for wireless networks. A plurality of bandwidth channels are assigned to a basic service set (bss) for transmissions.

Radio frequency front end circuitry for carrier aggregation


Rf front end circuitry includes at least three antennas, rf filtering circuitry, antenna switching circuitry coupled between the antennas and the rf filtering circuitry, and transceiver circuitry coupled to the rf filtering circuitry. The rf front end circuitry may support at least five carrier aggregation configurations between eight different operating bands.

Method and signaling of ul-dl configuration


Methods and apparatuses for transmitting information of uplink-downlink (ul-dl) configuration in presence of carrier aggregation are provided. The method comprises: in response to a decision of transmitting the information of ul-dl configuration, determining one or more component carriers to carry the information of ul-dl configuration based on a predefined rule; and transmitting a message, including the information of ul-dl configuration, on the determined one or more component carriers.

Method and improved carrier aggregation access control


Various methods and devices are provided to address the need for improved carrier aggregation access control. In one method, an network node determines (301) that a call involving a ue is eligible for carrier aggregation and sends (302) a request for capability information concerning the ue to an mme.

Transmission of uplink control information in carrier aggregation with a large number of cells


Methods and apparatus are provided for a user equipment (ue) to transmit uplink control information (uci) and for a base station to receive uci when the ue is configured a number of cells for operation with carrier aggregation (ca). The base station configures the ue a code rate and the ue determines a uci payload to transmit in a subframe to be the maximum one that results a transmission code rate that is not larger than the configured code rate.

Method and device for transmitting and receiving downlink control information


Provided are a method and a device for transmitting and receiving downlink control information. In particular, a method and device may be provided for configuring a downlink control information transmission format in a carrier aggregation situation among serving cells having different duplex modes.

Evolved node-b, user equipment and methods for transition between unlicensed and licensed frequency bands


Embodiments of an evolved node-b (enb) to support carrier aggregation (ca) of a licensed frequency band and an unlicensed frequency band are disclosed herein. The enb may transmit traffic packets on an unlicensed channel in the unlicensed frequency band to one or more user equipments (ues) assigned to the unlicensed channel.

Method and transmitting control channel in intra-cell carrier aggregation system


A method for receiving control channel and an apparatus in a wireless communication system are provided. The method includes transmitting, at a base station, information on a primary cell operating in a frequency division duplexing (fdd) mode and a secondary cell operating in a time division duplexing (tdd) mode, transmitting, at the base station, downlink scheduling information for downlink data, transmitting, at the base station, the downlink data in a first subframe according to the downlink scheduling information, and receiving, at the base station, control information corresponding to the downlink data on the primary cell, from a terminal.

Receiver for carrier aggregation


A single hybrid receiver is provided for processing both single carrier and carrier aggregated (ca) communications signals where carriers are split into independent receive paths without any additional external components. The receiver receives all contiguous and non-contiguous intra-band ca and inter-band ca signals, including those of unequal bandwidths, allowing for improved rejection and balanced rejection of jamming signals on either side of the two carrier signals..

Radio base station, user terminal and discontinuous reception method


The present invention provides a discontinuous reception method in a radio communication system in which carrier aggregation is performed by aggregating a component carrier of a macro cell and a component carrier of a small cell. The discontinuous reception method has the steps of: classifying a radio bearer configured in a user terminal into an rb group 1 including a radio bearer associated with the component carrier of the macro cell or an rb group 2 including a radio bearer associated with the component carrier of the small cell; transmitting, to the user terminal, a drx set 1 to use in discontinuous reception of data via a radio bearer of the rb group 1 and a drx set 2 to use in discontinuous reception of data via a radio bearer of the rb group 2..
Ntt Docomo, Inc.


Low noise amplifier providing variable gains and noise cancellation for carrier aggregation


A variable-gain, low noise amplifier system includes a variable-gain, low noise amplifier, having a matching stage, coupled to an input signal with a plurality of different carrier frequencies, that provides complementary output signals containing the plurality of different carrier frequencies. The variable-gain, low noise amplifier also includes a set of carrier gain control stages, coupled to the complementary output signals, wherein each carrier gain control stage provides an independent gain for one carrier frequency of the plurality of different carrier frequencies.
Nvidia Corporation


Novel low noise amplifier architecture for carrier aggregation receivers


A low noise amplifier includes a first input transistor coupled to an input signal and a second input transistor coupled to the input signal. The low noise amplifier also includes a first output transistor, coupled between the first input transistor and a first carrier aggregation load, configured to connect the first input transistor to the first carrier aggregation load.
Nvidia Corporation


Apparatus and effective multi-carrier multi-cell scheduling in mobile communication system


Disclosed are an apparatus and a method for providing effective scheduling of resources of each cell and each carrier to a user equipment (ue) when there are a plurality of cells and carriers in a carrier aggregation mobile communication system. A communication method of a base station (bs) includes: obtaining a mapping relation between a cell and a carrier for each ue; receiving scheduling information for each cell; distributing data of each ue to one of cells corresponding to ues by using the mapping relation between the carrier and the cell and the scheduling information for each cell; and scheduling the distributed data.
Samsung Electronics Co., Ltd.


Lte operation in small cells using dynamic shared spectrum


Systems, methods, and apparatus may be used to provide assistance for connection procedures in a hierarchical network where macro cells may be operating in licensed spectrum while small cells may be operating in dynamic and shared spectrums, such as tvws. This may be done, for example, to allow an lte system performing carrier aggregation (ca) to reconfigure itself to change from a supplementary cell (suppcell) in one dynamic and shared spectrum channel to a suppcell in another dynamic and shared spectrum channel..
Interdigital Patent Holdings, Inc.


Mobile terminal test apparatus and parameter replacement use in mobile terminal test apparatus


Provided is a mobile terminal test apparatus that can shorten a carrier aggregation testing time. The mobile terminal test apparatus includes a call processing units 12-0 to 12-n that transmits and receives a wireless signal between each of the call processing units 12-0 to 12-n and a mobile terminal 2, and makes a call connection suitable for testing conditions as a component carrier between each of the call processing units 12-0 to 12-n and the mobile terminal 2, and a control unit 15 that causes the mobile terminal 2 to perform a handover, and that applies parameters for a scc that is designated, as parameters for a pcc that is a handover destination, to the call processing unit 12-0 that corresponds to a pcc, and applies parameters for the pre-handover pcc to the call processing unit 12-n that corresponds to the scc that are designated and thus connects the scc..
Anritsu Corporation


Power control for carrier aggregation on shared bands


There is provided, for example, an apparatus, which is caused to select a transmission power configuration for a communication with at least one user terminal taking place on component carriers of a carrier aggregation configuration within a shared band, wherein the selection is between a low transmission power configuration applying a transmission power below a predetermined power threshold without a listen-before-talk approach and a high transmission power configuration applying a transmission power of at least the predetermined power threshold; and upon detecting that the selected transmission power configuration needs to be informed, cause an indication of the selected transmission power configuration to the at least one user terminal and at least one secondary cell.. .
Broadcom Corporation


Method and device for setting backhaul link subframe in wireless communication system having carrier aggregation technique applied thereto


Disclosed in the present invention is a method for a base station to set a backhaul link subframe for a relay node in a wireless communication system, to which a carrier aggregation technique is applied. More particularly, the present invention comprises the steps of: determining one of the plurality of subframe settings as a first subframe setting for a main component carrier allocated to the relay node; composing subframe setting candidates for one or more subcomponent carriers allocated to the relay node, one the basis of the determined first subframe setting; and determining a second subframe setting for each of the one or more subcomponent carriers, using the composed subframe setting candidates, wherein a subframe aggregation according to the first subframe setting and subframe aggregations according to each of the subframe setting candidates do not overlap when downlink subframes and uplink subframes of the different component carriers are identical, and a downlink subframe aggregation according to the second subframe setting is included in a downlink subframe aggregation according to the first subframe setting..
Lg Electronics Inc.


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Method and wireless communication


A method and an apparatus for wireless communication is provided. The apparatus configured for time division multiplex (tdm) between time division duplex (tdd) and frequency division duplex (fdd), comprises a radio frequency (rf) unit for transmitting and receiving a radio signal, and a processor operatively coupled to the rf unit, wherein the processor is configured for transmitting signals via the rf unit based on a scheduling for ul and/or dl, wherein the rf unit receives signal from at least one cell and transmits signal to at least one cell with carrier aggregation, and wherein the processor performs single transmission of signal on uplink and single reception of signal on downlink at one subframe via the rf unit..
Lg Electronics Inc.


Interference mitigation through carrier aggregation


A system for interference mitigation through carrier aggregation may include one or more processors and a memory. The memory may include instructions that, when executed by the one or more processors, cause the one or more processors to: provide data transmissions and control transmissions to a wireless device over a primary component carrier, determine that interference exists on the primary component carrier, and switch at least a portion of the data or control transmissions to a secondary component carrier in response to determining that the interference exists on the primary component carrier, while maintaining connectivity on the primary component carrier..
Broadcom Corporation


Channel state information feedback scheme for cooperative multi point transmission and carrier aggregation scenario


Embodiments of a system and method for reporting uplink control information (uci) are generally described herein. In some embodiments, a first and second component carrier (cc) is provided for a user equipment (ue).
Intel Corporation


Method and determining transmission power of preamble in wireless communication system


Provided are a method and an apparatus for determining transmission power of a preamble in a wireless communication system. A terminal estimates secondary cell (scell) path loss with respect to a downlink (dl) component carrier (cc), which is in a linkage relationship with an uplink (ul) component carrier inside the scell; decides the transmission power of a physical random access channel (prach) preamble based on the scell path loss that is estimated; and transmits the prach preamble to a base station through the ul cc inside the scell, based on the transmission power that is decided, wherein the scell and a primary cell (pcell) comprises a carrier aggregation (ca) system, the pcell is a cell from which the terminal performs radio resource control (rrc) connection with the base station, and wherein the scell is at least one cell from residual cells in the carrier aggregation excluding the pcell..
Lg Electronics Inc.


Communication method in wireless communication system on basis of carrier aggregation


Disclosed is a communication method in a wireless communication system on the basis of a carrier aggregation. The communication method on the basis of a carrier aggregation comprises the steps of: receiving a pdsch from a base station via a subframe n of a tdd cell; and transmitting, to the base station, a pucch including a response to the pdsch via a subframe n+4 of an fdd cell.
Electronics And Telecommunications Research Institute


Communication device and communication method in radio communication system


The communication device of a carrier aggregation system includes a propagation delay amount estimation unit and a network-side interface. The propagation delay amount estimation unit receives from the first base station a terminal list of user equipment that exists within a coverage area range of the second base station and to which a cell that is uplink-synchronized with the primary cell is allocated, and information of an uplink pilot signal in the primary cell.
Fujitsu Limited


Communication in a heterogeneous network with carrier aggregation


A communication environment with carrier aggregation (ca) is disclosed in which a ue is configured for communication at a first time with a first network node via a primary component carrier (pcc) and a second network node via a secondary cc (scc). At a second time, the ue is configured for communication with a third network node via the scc at a second time.
Qualcomm Incorporated




Carrier Aggregation topics:
  • Carrier Aggregation
  • Base Station
  • Sounding Reference Signal
  • Relay Node
  • Scheduling
  • Channel Status
  • Carrier Frequency
  • Communication System
  • Automatic Repeat Request
  • Transmitter
  • Extension Carrier
  • Downlink Control Information
  • Radio Resource Control
  • Heterogeneous
  • Heterogeneous Network


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