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Carrier Aggregation patents

      

This page is updated frequently with new Carrier Aggregation-related patent applications.




Date/App# patent app List of recent Carrier Aggregation-related patents
08/18/16
20160242171 
 Random access method and apparatus of ue in mobile communication system patent thumbnailRandom 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.


08/18/16
20160242158 
 User terminal, base station and radio communication method patent thumbnailUser 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.


08/18/16
20160242153 
 Eimta in enhanced carrier aggregation patent thumbnailEimta 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


08/18/16
20160242121 
 Uplink signal sending method and user equipment patent thumbnailUplink 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


08/18/16
20160241377 
 User terminal, base station, and radio communication method patent thumbnailUser 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.


08/18/16
20160241193 
 Radio receiver for carrier aggregation patent thumbnailRadio 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)


08/11/16
20160234847 
 User equipment and methods of bearer operation for carrier aggregation patent thumbnailUser 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


08/11/16
20160234830 
 Method and  controlling uplink control information transmission in wireless communication system providing widebandwidth services via carrier aggregation patent thumbnailMethod 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.


08/11/16
20160234737 
 System and  reducing data loss during a serving cell change in a multi-flow hsdpa communication network patent thumbnailSystem 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


08/11/16
20160234004 
 User terminal, base station and radio communication method patent thumbnailUser 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.


08/11/16
20160233996 

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


08/11/16
20160233895 

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.


08/04/16
20160227570 

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


08/04/16
20160227541 

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


08/04/16
20160227540 

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


08/04/16
20160227530 

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


08/04/16
20160227524 

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.


08/04/16
20160227523 

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.


08/04/16
20160227504 

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


08/04/16
20160227486 

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.


08/04/16
20160227451 

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.


08/04/16
20160227423 

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


08/04/16
20160226632 

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


07/28/16
20160219613 

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


07/28/16
20160219557 

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.

07/28/16
20160219477 

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)


07/28/16
20160218853 

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.


07/28/16
20160218850 

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


07/21/16
20160212755 

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.


07/21/16
20160212734 

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).

07/21/16
20160212649 

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


07/21/16
20160211951 

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.


07/21/16
20160211903 

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


07/14/16
20160205690 

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.


07/14/16
20160205685 

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


07/14/16
20160205679 

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


07/14/16
20160205648 

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.


07/14/16
20160205640 

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


07/14/16
20160205580 

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.


07/14/16
20160204905 

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.


07/07/16
20160198496 

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.


07/07/16
20160198452 

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.


07/07/16
20160198439 

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


07/07/16
20160198343 

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


06/30/16
20160192430 

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.

06/30/16
20160192389 

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.. .

06/30/16
20160192388 

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.

06/30/16
20160192384 

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.

06/30/16
20160192231 

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.

06/30/16
20160191107 

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.

06/23/16
20160183262 

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.

06/23/16
20160183260 

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.

06/23/16
20160183244 

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.

06/23/16
20160183223 

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.

06/23/16
20160183220 

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.

06/23/16
20160182211 

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.

06/23/16
20160182094 

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..

06/16/16
20160174155 

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.


06/16/16
20160173145 

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


06/16/16
20160173042 

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


06/09/16
20160165628 

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.


06/09/16
20160165596 

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.


06/09/16
20160165495 

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


06/09/16
20160164644 

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


06/09/16
20160164642 

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.


06/09/16
20160164622 

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.


06/02/16
20160157244 

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


06/02/16
20160157241 

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


06/02/16
20160157238 

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.


06/02/16
20160157226 

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


06/02/16
20160157199 

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


06/02/16
20160157151 

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


05/26/16
20160150585 

Method and carrier aggregation


The present disclosure relates to a method and an apparatus for performing carrier aggregation. The method includes the steps of: receiving an index of one or more secondary cells controlled by a first base station, and an index of one or more secondary cells controlled by a second base station; and performing the function of a primary cell by using one secondary cell from among the secondary cells of the second base station..
Kt Corporation


05/26/16
20160150511 

Method and receiving a downlink signal in a wireless communication system supporting carrier aggregation


The present invention relates to a method for receiving a downlink signal at a terminal in a wireless communication system. In particular, the method comprises: receiving a control channel to be transmitted to a specific subframe via a first carrier; and decoding a data channel corresponding to the control channel to be transmitted to the specific subframe via a second carrier, using at least one parameter included in the control channel, wherein information on the orthogonal frequency division multiplexing (ofdm) start symbol of data channels that are transmitted via each of at least one carrier allocated to the terminal is signaled through an upper layer..
Lg Electronics Inc.


05/26/16
20160149690 

Circuitry and methods for time division duplex carrier aggregation


Circuitry includes an antenna node, a number of input/output nodes, radio frequency (rf) multiplexer circuitry, and bypass circuitry. The rf multiplexer circuitry is coupled between the input/output nodes and the antenna node.
Rf Micro Devices, Inc.


05/26/16
20160149686 

Base station, user equipment for integrating multiple rats using carrier aggregation and methods thereof


A base station, for integrating multiple radio access technologies (rats) using carrier aggregation (ca) inlcudes a wan mac entity, an adapter and a wlan entity. The adapter is connected to one of a plurality of harq buffers and receives dl wan mpdus stored in the harq buffer, and converts the dl wan mpdus into a pluarlity of dl wlan mpdus.
Industrial Technology Research Institute


05/26/16
20160149628 

Channel state information (csi) reporting for carrier aggregation


Channel state information (csi) feedback of common csi components is discussed. An example user equipment (ue) includes a receiver circuit, processor, and transmitter circuit.
Intel Corporation


05/19/16
20160143084 

Methods for multi-point carrier aggregation configuration and data forwarding


Methods of multi-point carrier aggregation configuration and data forwarding are disclosed. In one embodiment of the invention, a primary connection is established between a ue and a primary base station in a primary cell with a first ue-id.
Mediatek Inc.


05/19/16
20160143047 

Scheduling and admission of radio bearers in a communications system applying carrier aggregation


A method and a network node (110; 400) for scheduling of resources to radio bearers associated with wireless devices (120, 121, 122) served by a base station (110) in a cell (115). The network node (110, 400) and the base station (110) operating in a wireless communications system (100) applying carrier aggregation.
Telefonaktiebolaget L M Ericsson (publ)


05/19/16
20160143046 

Maximization of radio resource allocation for a carrier aggregated user equipment


To schedule user equipments (ues) in a scheduling period, for each of x cells in a carrier aggregation (ca) system relative priorities of data bearers are determined. Each data bearer is associated with a respective ue having buffered data and at least one of the ues is a ca-ue that is allowed radio resource allocation to its associated data bearers in at least two of the cells.
Aricent Technologies Luxembourg S.a.r.l.


05/19/16
20160143035 

Carrier switching method, base station, and user equipment


The present invention discloses a carrier switching method, a base station, and user equipment, where the method includes: determining, according to carrier switching capability information of user equipment ue, a carrier switching policy according to which the ue performs carrier switching; and sending carrier switching indication information to the ue, where the carrier switching indication information is used for indicating the carrier switching policy, so that the ue performs carrier switching according to the carrier switching policy. In the carrier switching method, the base station and the user equipment according to embodiments of the present invention, the ue having no carrier aggregation capability is enabled to dynamically perform switching between at least two carriers, so that quality of service of a service of the ue can be improved, user experience can be improved, and system performance can be improved..
Huawei Technologies Co., Ltd.


05/19/16
20160143012 

Carrier aggregation controller and method


A carrier aggregation controller for providing an aggregated baseband signal from a plurality of baseband signals is provided. The controller comprises an accumulating memory, a selector and a time domain transformer.
Freescale Semiconductor, Inc.


05/19/16
20160142998 

Multi-sim user equipment and wireless communication method thereof


A wireless communication method and multi-sim user equipment are provided. The wireless communication method for multi-sim dual standby (dsds) technology is applied on multi-sim user equipment (ue) which is capable of carrier aggregation (ca) or dual connectivity (duco).
Mediatek Inc.


05/19/16
20160142933 

Fair distribution of radio resources between guaranteed bit rate (gbr) and non-gbr data bearers


User equipments (ues) may be scheduled by, in a cell, determining relative priorities of data radio bearers (drbs), each drb associated with an active ue. A limit is established dividing radio resources available for allocation in the cell during a scheduling period into at least a first limited portion and a second remaining portion.
Aricent Technologies Luxembourg S.a.r.l


05/19/16
20160142231 

Receiver front end architecture for intra band carrier aggregation


A receiver front end architecture for intra band carrier aggregation is disclosed. In an exemplary embodiment, an apparatus includes a first transistor having a gate terminal to receive an input signal, drain terminal to output an amplified signal, and a source terminal connected to a signal ground by a source degeneration inductor.
Qualcomm Incorporated


05/19/16
20160142027 

Amplifier and related method


An amplifier applicable to an intra-band non-contiguous carrier aggregation (ncca) band includes a first amplifier circuit and a second amplifier circuit. The ncca band includes at least a primary component carrier (pcc) channel and a secondary component carrier (scc) channel not adjacent to each other.
Mediatek Inc.


05/12/16
20160135248 

Methods for multi-point carrier aggregation configuration and data forwarding


Methods of multi-point carrier aggregation configuration and data forwarding are disclosed. In one embodiment of the invention, a primary connection is established between a ue and a primary base station in a primary cell with a first ue-id.
Mediatek Inc.


05/12/16
20160135221 

Communication method using a carrier aggregation and apparatus therefore


A method of controlling an uplink transmission in a wireless communications system, and a user equipment therefore are discussed. The method according to one embodiment includes configuring the user equipment with multiple component carriers; receiving first configuration information for allocating one or more component carrier sets; receiving second configuration information for periodically transmitting an uplink signal; receiving control information for configuring states of component carriers, by which a downlink component carrier and an uplink component carrier are controlled to be in a same state; and performing a procedure for periodically transmitting the uplink signal on an uplink component carrier in use of the first configuration information, the second configuration information and the control information.
Lg Electronics Inc.


05/12/16
20160135156 

Method and device for information transmission in wireless communication system


The present invention relates to a wireless communication system and more specifically relates to a method and device for transmitting information. A wireless communication system can support carrier aggregation (ca).
Lg Electronics Inc.


05/12/16
20160134407 

Method, base station, and user equipment for feeding back ack/nack information for carrier aggregation


The present invention provides a method, a base station, and a user equipment for feeding back ack/nack information for carrier aggregation. The method includes: configuring a common field preset in dci as at least one type of command field related to ack/nack feedback of at least two types of command fields related to ack/nack feedback, where the common field can be configured as the command fields related to ack/nack feedback; and sending the dci to a user equipment, so that the user equipment feeds back ack/nack information according to the dci.
Huawei Technologies Co.,ltd.




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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