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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
06/23/16
20160183262 
 Method and  signaling of ul-dl configuration patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailnew patent 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 patent thumbnailRadio 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 patent thumbnailLow 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 patent thumbnailNovel 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.


05/05/16
20160128054 

Method and carrier aggregation


The present disclosure relates to a method and an apparatus for controlling carrier aggregation. In the method, a terminal performs carrier aggregation from a first base station so that a pcell, which is one carrier from among carriers controlled by the first base station, is used for setting another carrier to be an scell.
Kt Corporation


05/05/16
20160128034 

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


A technique for converging 5th generation (5g) communication and internet of things (iot) technologies is provided. The technique may be applied to intelligent services based on the 5g communication and iot technologies.
Samsung Electronics Co., Ltd.


05/05/16
20160127998 

Communication terminal and controlling power consumption of a communication terminal


A communication terminal is described comprising a transceiver configured to communicate using carrier aggregation according to a first carrier aggregation setting, a detector configured to detect a need for the communication terminal to reduce its power consumption and a controller configured to initiate a switch from the first carrier aggregation setting to a second carrier aggregation setting with reduced power consumption compared to the first carrier aggregation setting if the detector has detected a need for the communication terminal to reduce its power consumption.. .
Intel Corporation


05/05/16
20160127107 

Cell status changing method, user equipment, and base station


Embodiments disclose a cell status changing method. The method includes receiving, by user equipment, a first indication sent by a master base station, where the first indication is used to indicate a status change of a first cell of the master base station or a status change of a second cell of a secondary base station; and performing activation on the first cell or the second cell according to the first indication, or performing deactivation on the first cell or the second cell according to the first indication.
Huawei Technologies Co., Ltd.


05/05/16
20160127105 

Method of transmitting and receiving ack/nack signal and apparatus thereof


Disclosed is a method for transmitting an ack/nack signal for an harq (hybrid automatic repeat request) in a ca (carrier aggregation) system, the method including obtaining at least one transmission resource among first and second transmission resources; configuring a first table showing a relationship in which a combination of at least one of the first and second transmission resources and modulation symbols is mapped to an ack/nack signal, and transmitting modulation symbols corresponding to a transmission target ack/nack signal in the first table by using transmission resource corresponding to the transmission target ack/nack signal in the first table.. .
Pantech Co., Ltd.


05/05/16
20160127055 

Mechanism to measure, report, and allocate a highest possible rank for each cell in a carrier aggregation (ca) mode receiver-limited user equipment (ue)


Certain aspects of the claimed invention generally relate to a network dynamically configuring one or more cells based on signal quality measurements received from all antennas of a receiver-limited ue. The receiver-limited ue may have a number of receivers that is less than or equal to a number of antennas of the ue.
Qualcomm Incorporated


05/05/16
20160127017 

Configurable receiver architecture for carrier aggregation with multiple-input multiple-output


A wireless communication system and method that includes configurable carrier aggregation (ca) and/or multiple-input multiple-output (mimo) operational modes. In ca, multiple carriers (i.e., channel bundling) are aggregated and jointly used for transmission to/from a single terminal.
Broadcom Corporation


05/05/16
20160127016 

Uplink diversity and interband uplink carrier aggregation in front-end architecture


Uplink diversity and interband uplink carrier aggregation in front-end architecture. In some embodiments, a radio-frequency (rf) front-end architecture can include a first transmit/receive (tx/rx) front-end system configured to operate with a first antenna, and a second tx/rx front-end system configured to operate with a second antenna.
Skyworks Solutions, Inc.


05/05/16
20160126990 

Diversity receive modules using one or more shared tunable notch filters for transmit blocker rejection


A carrier aggregation front-end module with a receive sub-module for receiving signals from a plurality of transmit modules. The module comprises a first receive path configured to receive a first set of signals from one or more of a plurality of antennas, wherein the first set of signals comprises at least one desired receive signal and at least one undesired transmit blocker signal from the plurality of transmit modules.
Rf Micro Devices, Inc.


04/28/16
20160119925 

Communication device and controlling transceiver chains of a communication device


A communication device is described comprising a first transceiver chain set to communicate signals in a first frequency range, a second transceiver chain set to communicate signals in a second frequency range or set to no communication and a controller, configured to receive an instruction for a resetting of carrier aggregation comprising a setting of the first transceiver chain or the second transceiver chain to receive signals in a third frequency range different from the first frequency range and the second frequency range, to control, in response of the reception of the instruction, the second transceiver chain to receive signals within the first frequency range simultaneously with the first transceiver chain and to control the first transceiver chain, when the communication of signals within the first frequency range by the second transceiver chain fulfills a predetermined criterion, to stop communication of signals within the first frequency range.. .
Intel Corporation


04/28/16
20160119904 

Search space for epdcch control information in an ofdm-based mobile communication system


The present invention relates to a method for receiving control information within a subframe of a multi-carrier communication system supporting carrier aggregation, the method comprising the following steps performed at a receiving node: performing a blind detection for the control information within a search space by means of a first search pattern, wherein the first search pattern is one of a plurality of search patterns, each of the plurality of search patterns comprising a plurality of candidates distributed on any of a plurality of aggregation levels, and wherein the plurality of search patterns further comprises a second search pattern whose candidates are non-overlapping the candidates of the first search pattern on the same aggregation levels.. .
Panasonic Intellectual Property Corporation Of America


04/28/16
20160119216 

Method and device for activating and deactivating secondary component carrier in carrier aggregation


The present invention relates to communication technology. Disclosed are a method and device for activating and deactivating a secondary component carrier (scc) in carrier aggregation.
Datang Mobile Communications Equipment Co., Ltd


04/28/16
20160119084 

Carrier aggregation acknowledgement bits


Systems, methods, and user equipment can involve transmitting acknowledgement/negative acknowledgement (ack/nack) bits for carrier aggregation between a first cell and a second cell in a user equipment (ue). With the ue, for a sub-frame, a first number of ack/nack bits for the first cell can be compared with a second number of ack/nack bits for the second cell.
Blackberry Limited


04/21/16
20160112918 

Method for implementing soft handover based on carrier aggregation technology, base station, and terminal


A method for implementing soft handover based on a carrier aggregation technology, a base station and a terminal are disclosed. The method is applied in a scenario of complementary carrier coverage, and includes: a terminal and a base station simultaneously receiving and transmitting data through a plurality of cells corresponding to a plurality of member carriers by means of carrier aggregation, wherein one of the plurality of cells is a primary cell, and the rest are secondary cells; according to a measurement result of the terminal, the base station determining to switch one of the secondary cells to be the primary cell of the terminal, and marking the one of the secondary cells as a target secondary cell; and the base station maintaining a service connection between the terminal and the target secondary cell, and notifying the terminal to hand over a control signaling connection to the target secondary cell..

04/21/16
20160112902 

Apparatus and balancing traffic load using inter-site carrier aggregation


A method for selecting a serving cell by a user equipment (ue) to which the inter-site carrier aggregation (ca) technology is according to the intensity of a reception signal of each carrier wave is provided. However, in order to improve resource usage and a throughput of the entire cells, a method is performed in which a pcell and an scell are selected considering the intensity of a reception signal and a load between cells, the scell is activated, and loads of the pcell and the scell are adjusted.

04/21/16
20160112178 

Method and fdd/tdd intra-node and inter-node carrier aggregation


Methods and apparatuses for tdd/fdd aggregation are described. The method thereto comprises receiving information on uplink scheduling, wherein the uplink scheduling is a scheduling on uplink transmission configured with a carrier aggregation of a primary cell (pcell) with tdd and a secondary cell (scell) of fdd or a carrier aggregation of a pcell with fdd and a scell with tdd and transmitting uplink signal based on the uplink scheduling..

04/14/16
20160105911 

Method and performing random access in a mobile communication system


The present disclosure relates to a method and apparatus for performing random access in a user equipment for a small cell e-nb with a small cell service area in heterogeneous e-nb cell carrier integration (dual connectivity or inter-enb carrier aggregation) in mobile communication systems. In accordance with an aspect of the present disclosure, a method for performing random access in a mobile communication system is provided.

04/14/16
20160105880 

Carrier aggregation methods of broadcast channels with broadcast channels or broadcast channels with unicast channels


A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a ue.

04/07/16
20160100389 

Method and device for allocating dedicated scheduling request resource


A method and device for distributing the specific scheduling request resources. The method includes: in the multi-carrier aggregation system, according to the set scheduling principle determine the terminal sending carrier resources which may be used by the specific scheduling, the carrier resources comprises the number of carrier and serial number, the carrier resources of the specific scheduling request resources are distributed and sent to the terminal on the determined carrier according to the set scheduling principle; the distributed carrier and time frequency resources which may be used on every carrier are informed to the terminal..
China Academy Of Telecommunications Technology


03/31/16
20160095097 

Method for transmitting and receiving signals using multi-band radio frequencies


A method for transmitting, by a base station, signals in a communication system. The base station transmits, to a mobile station via a primary carrier band of the mobile station, carrier aggregation configuration information informing the mobile station of a subsidiary carrier band for the mobile station.
Lg Electronics Inc.


03/31/16
20160095086 

Carrier aggregation secondary component carrier management


This disclosure relates to management of a secondary component carrier by a wireless device when using carrier aggregation. According to one embodiment, a primary component carrier for communication between a base station and a wireless device may be configured according to a first wireless communication technology.
Apple Inc.


03/31/16
20160094446 

Multiple radio link control (rlc) groups


Technology to process radio link control (rlc) groups is disclosed. In an example, a carrier aggregation (ca) capable user equipment (ue) operable process radio link control (rlc) groups can include a ue radio frequency (rf) transceiver and a processor.

03/24/16
20160087770 

Method, system and transmitting data in carrier aggregation manner


A method, a system and an apparatus can be used for transmitting data in a ca manner. A first base station currently serving a user equipment (ue), creates eps bearers under different component carriers cc groups for the ue.
Huawei Technologies Co., Ltd.


03/17/16
20160081113 

Communication carrier aggregation system


Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel pdsch information sent by a base station through a subframe n of a secondary cell.
Huawei Technologies Co., Ltd.


03/17/16
20160081076 

Communication method, base station and user equipment


The present invention provides a communication method to solve a problem of a failure in data receiving that arises. The method includes: sending, by a first base station, first data to ue according to first data allocation information that is determined according to a radio access capability of the ue; and sending, by a second base station according to second data allocation information that is determined by the first base station according to the radio access capability of the ue, second data to the ue; where the first base station performs carrier aggregation with the second base station, and a total amount of data that is sent by the first base station and the second base station to the ue in a same tti does not exceed a total amount of data that can be received according to the radio access capability of the ue..
Huawei Technologies Co., Ltd.


03/17/16
20160081068 

Communication carrier aggregation system


Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel pdsch information sent by a base station through a subframe n of a secondary cell.
Huawei Technologies Co., Ltd.


03/17/16
20160080134 

Periodic channel state information reporting for time division duplex (tdd) carrier aggregation systems


Technology for a user equipment (ue) operable to report periodic channel state information (csi) is disclosed. The ue can determine a reporting period (npd) of the ue for a serving cell.
Intel Corporation


03/17/16
20160080094 

Method for removing interference in wireless communication system and device for same


A method by which a base station supports the removal of an interference signal from a reception signal of a terminal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of receiving, from the terminal, information on capability relating to carrier aggregation (ca); determining a method for removing an interference signal of the terminal, on the basis of information on the capability relating to the ca; and transmitting, to the terminal, the determined interference signal removal method, wherein the information on the capability relating to the ca can include a ca bandwidth class and mimo capability of the terminal for the respective bands of respective band combinations for the ca.. .
Lg Electronics Inc .


03/10/16
20160073370 

Secondary cell synchronization for carrier aggregation


A carrier aggregation application method is provided of attaining time synchronization to a secondary cell for a wireless communication device usable in a cellular communication network. The method comprises, if a time reference of the secondary cell is unknown to the wireless communication device: setting a preliminary time reference of the secondary cell to equal a time reference of a primary cell of the carrier aggregation application; performing a synchronization signal based detection of the time reference of the secondary cell based on the preliminary time reference and one or more synchronization signals transmitted in the secondary cell; performing preliminary time reference based channel state measurements of the secondary cell based on the preliminary time reference and one or more reference signals transmitted in the secondary cell; setting, based on the synchronization signal based detection, a value of a channel quality indicator to either a nominal value or a value based on the preliminary time reference based channel state measurements; and transmitting a channel state information report comprising the channel quality indicator to the cellular communication network.
Telefonaktiebolaget L M Ericsson (publ)


03/10/16
20160073362 

Method for configured maximum output power reporting and user equipment


A base station configured for carrier aggregation, includes: a receiver; and processing circuitry coupled to the receiver and configured to: allocate to a user equipment uplink resources for at least one activated serving cell configured with an uplink carrier, the uplink resources for new transmission and the allocated uplink resources may accommodate a power headroom report, and obtain, responsive to the allocated uplink resources, a configured maximum output power for an activated serving cell configured with an uplink carrier, where the activated serving cell has non-adaptive retransmission of uplink data, or the activated serving cell where the base station schedules channel state information but no allocated uplink grant for transmitting data of an uplink shared channel.. .
Fujitsu Limited


03/10/16
20160073360 

Radio communication system and mobile terminal device


A radio communication system includes a radio base station and a mobile terminal device communicating with the radio base station using carrier aggregation, wherein upon occurrence of a triggering event of sending a power headroom report to the radio base station, the mobile terminal device is configured to determine whether there is a secondary cell that is in the process of activation, and wherein the mobile terminal device is configured to suspend transmission of the power headroom report to the base station for a predetermined time period if there is a secondary cell that is in the process of activation.. .
Ntt Docomo, Inc.


03/10/16
20160072656 

Radio receiver for carrier aggregation


A radio receiver circuit (10) configurable to operate in a carrier-aggregation, ca, mode and in a non-ca mode is disclosed. It comprises a first receive path (30) arranged to be operatively connected to an antenna (15) and a second receive path (40) arranged to be operatively connected to the same antenna (15).
Telefonaktiebolaget L M Ericsson (publ)


03/10/16
20160072612 

Method and performing harq processes in carrier aggregation systems


The present invention relates to a method for managing a soft buffer for the hybrid automatic repeat request (harq) of a terminal to which a plurality of cells are set in a wireless communication system, and to an apparatus using the method. Through the method, information is received about the maximum number of cells capable of being simultaneously scheduled from among a plurality of cells, and the size of the soft buffer is determined for storing transmission blocks or code blocks of each cell on the basis of the information..

03/10/16
20160072512 

Increased synthesizer performance in carrier aggregation/multiple-input, multiple-output systems


Certain aspects of the present disclosure provide methods and apparatus for using multiple voltage-controlled oscillators (vcos) to increase frequency synthesizer performance, such as in stringent multiple-input, multiple-output (mimo) modes. One example apparatus capable of generating oscillating signals generally includes a first vco, a second vco, and connection circuitry configured to connect the second vco in parallel with the first vco if a phase-locked loop (pll) associated with the second vco is idle..
Qualcomm Incorporated


03/03/16
20160066364 

Methods, apparatus and systems for performing multi-radio access technology carrier aggregation


A method of managing carrier aggregation for a multi-radio access technology (rat) wireless transmitter/receiver unit (wtru) is disclosed. The method may include: receiving, by the wrtu over a primary channel associated with a rat of a first type, provisioning information for provisioning a supplementary channel associated with a rat of a second type; establishing the supplementary channel associated with the rat of the second type based on the received provisioning information; and wirelessly exchanging, by the wrtu, first data associated with a communication over the primary channel via the rat of the first type, while wireless exchanging second data associated with the communication over the supplementary channel via the rat of the second type..
Interdigital Patent Holdings, Inc


03/03/16
20160066322 

Td lte secondary component carrier in unlicensed bands


A method is provided for communication in a wireless telecommunication system. The method comprises adaptively designating, by a network element following a frame-based communication protocol, for use as a secondary component carrier in a carrier aggregation scheme, at least a portion of radio resources on an unlicensed band..
Blackberry Limited


03/03/16
20160065349 

Transmission of harq control information from a user equipment for downlink carrier aggregation


Methods and apparatuses are provided for a user equipment (ue) to transmit at least two hybrid automatic repeat request-acknowledgement (harq-ack) bits. At least one transport block is received on each of at least two configured cells.
Samsung Electronics Co., Ltd


03/03/16
20160065264 

Low noise amplifier and carrier aggregation and non-carrier aggregation


A low noise amplifier for carrier aggregation and non-carrier aggregation is provided. The low noise amplifier includes a plurality of symmetrical half circuits, a plurality of bias circuits, where each of the plurality of bias circuits is connected to one of the plurality of symmetrical half circuits, a plurality of capacitors, where each of the plurality of capacitors is connected to one of the plurality of symmetrical half circuits for alternating current (ac) coupling an rf signal containing at least one component carrier, and a control logic circuit connected to each of the plurality of symmetrical half circuits for configuring the low noise amplifier to process one component carrier or a plurality of component carriers..
Samsung Electronics Co., Ltd.


03/03/16
20160065255 

Domino circuit and related architectures and methods for carrier aggregation


Domino circuit and related architectures and methods for carrier aggregation. In some embodiments, a domino circuit can include first and second signal paths for respective first and second frequency bands, and each signal path can be configured to present an approximately zero impedance to a signal in the other frequency band.
Skyworks Solutions, Inc.


03/03/16
20160065254 

Rf transmitter supporting carrier aggregation and envelope tracking


Exemplary embodiments of the present invention relate to an rf transmitter supporting carrier aggregation and envelope tracking and an rf transmitter according to an embodiment of the present invention comprises an rf path configured to convert a carrier aggregation signal in which a plurality of component carriers belonging to a baseband are aggregated into an rf signal; an et path configured to generate an envelope signal by calculating magnitudes of the plurality of component carriers, respectively, and adding the calculated each magnitude of the component carriers; and an amplifier configured to power-amplify the converted rf signal according to a bias voltage corresponding to the generated envelope signal. According to exemplary embodiments of the present invention, power amplification efficiency and data transmission efficiency are improved by applying carrier aggregation and envelope tracking..
Electronics And Telecommunications Research Institute


02/25/16
20160057800 

Method and system for random access procedure and radio link failure in inter-enb carrier aggregation


A method and system for configuring a user equipment (ue) for dual connectivity mode of operation when the ue is carrier aggregated with one or more serving frequencies served by a master enb (menb) and one or more serving frequencies served by the secondary enb (senb). The method allows the ue to autonomously initiate the random access procedure on a scell of the senb after adding or replacing scell of the senb.
Samsung Electronics Co., Ltd.


02/25/16
20160057786 

Random access in networks with carrier aggregation


A wireless device receives a control command initiating a random access process for a secondary cell. The wireless device transmits a random access preamble on random access resources of the secondary cell.
Ofinno Technologies, Llc


02/25/16
20160057772 

System and supporting inter-band carrier aggregation with different ul/dl tdd configurations


In some implementations, a method of wireless communications between a wireless communications network and wireless user equipment includes receiving, using a primary time division duplex (tdd) configuration, data on a primary component carrier in a first frequency band. Using a secondary tdd configuration, data on a secondary component carrier is received in a second frequency band different from the first frequency band.
Blackberry Limited


02/25/16
20160057750 

Method and transmitting channel quality control information using pucch format 3 in a wireless access system


A method of transmitting uplink control information (uci) in a wireless access system supporting carrier aggregation. A user equipment (ue) receives two or more physical downlink shared channels (pdschs) via two or more downlink component carriers, respectively.
Lg Electronics Inc.


02/25/16
20160057745 

Mobile station apparatus, base station apparatus, management method in a mobile station apparatus, processing section and communication system


A communication system includes a terminal apparatus and a base station apparatus. The terminal apparatus communicates with a base station apparatus by carrier aggregation using a plurality of serving cells, where each of the plurality of serving cells has a different frequency.
Sharp Kabushiki Kaisha


02/18/16
20160050690 

Carrier aggregation using shared spectrum


A method for performing carrier aggregation (ca) using spectrum shared between an incumbent user and a telecommunications network includes establishing a primary cell (pcell) for the secondary user in a portion of radio spectrum that is exclusively licensed to the telecommunications network, establishing a secondary cell (scell) for the telecommunications network in a portion of the shared spectrum that is shared with the incumbent user, receiving schedule data for the incumbent user at a controller in communication with the incumbent user and a transmitter for the pcell and the scell, scheduling transmissions for the pcell and the scell to avoid interference to the incumbent user, and transmitting the scheduled transmissions through the pcell and the scell using carrier aggregation (ca). Accordingly, one or more scell in shared spectrum may be aggregated with a pcell in dedicated spectrum..
Spectrum Effect Inc.


02/18/16
20160050665 

Radio-frequency front-end architecture for carrier aggregation of cellular bands


Circuits and methods related to radio-frequency (rf) architectures having carrier aggregation. In some implementations, a carrier aggregation (ca) architecture can include a duplexer configured to provide duplexing functionality for a first frequency band and a second frequency band with a common antenna.
Skyworks Solutions, Inc.


02/18/16
20160050652 

Secondary cell preparation for inter-site carrier aggregation


According to embodiments of the invention, an apparatus is provided which includes a connection unit configured to send and/or receive data to and/or from a secondary network control node, a processor configured to establish a configuration preparation message for the secondary network control node for preparing a carrier aggregation in which data to a user equipment is transmitted by at least two component carriers, and in which at least one first component carrier is provided between the apparatus and the user equipment and at least one second component carrier is provided between the secondary network control node and the user equipment, wherein the configuration preparation message includes configuration preparation information for the carrier aggregation, and the connection unit is configured to send the configuration preparation message to the secondary network control node.. .

02/18/16
20160050632 

Power control for simultaneous transmission of ack/nack and channel-state information in carrier aggregation systems


Channel-state information and hybrid-arq ack/nack information for multiple carriers are simultaneously transmitted using a pucch format 3 structure, where the hybrid-arq ack/nack bits and csi bits are separately encoded and interleaved. In an example method, a power control offset parameter is calculated as a linear combination of at least a number n, representing a number of channel-state information bits and a number m, representing a number of hybrid-arq ack/nack bits.
Telefonaktiebolaget L M Ericsson (publ)


02/18/16
20160050594 

Method, apparatus and system for cell handover in communication system supporting carrier aggregation


A method, apparatus and system for cell handover in the communication system supporting carrier aggregation (ca). The method includes: after receiving a performance measurement report for one or more neighboring cells from the served terminal, according to the performance measurement report, and basing on the ca mode for one or more candidate bss corresponding to the one or more neighboring cells, a source base station (bs) in a communications system selects an algorithm suitable for the ca mode to calculate the priority levels of the one or more candidate bss; from the one or more candidate bss, selecting the bs having the highest priority as a target bs; and selecting one more cells to access from all cells being subject to the target bs in the one or more neighboring cells..
Sony Corporation


02/18/16
20160050534 

Method for measuring location of user equipment in wireless access system and apparatus therefor


The present invention relates to a method for measuring a location of a user equipment in a wireless access system for supporting carrier aggregation/multiple cells and an apparatus therefor. Specifically, the method comprises the steps of: enabling the user equipment to receive information on positioning reference signal (prs) transmission bandwidths of a reference cell and a neighboring cell, enabling the user equipment to reconfigure an operating channel bandwidth of a radio frequency (rf) unit when one of the prs transmission bandwidth of the reference cell and the prs transmission bandwidth of the neighboring cell belongs to an inactive secondary cell, enabling the user equipment to receive the prs from the reference cell and the neighboring cell, and enabling the user equipment to measure a reference signal time difference (rstd) by using the prs of the reference cell and the prs of the neighboring cell..
Lg Electronics Inc.


02/18/16
20160050098 

Apparatus and circuit for processing carrier aggregation


A circuit for processing carrier aggregation (ca) is provided. The circuit includes a plurality of component carrier (cc) processors, each cc processor configured to estimate a frequency offset for a related cc and to compensate the estimated frequency offset, a reference clock generator configured to generate a reference clock using a reference frequency offset as one of frequency offsets output from the plurality of cc processors, a plurality of reception phase lock loop (pll) units, each reception pll unit configured to generate a reception carrier frequency for the related cc corresponding to the reference clock, and a plurality of transmission pll units, each transmission pll unit configured to generate a transmission carrier frequency for the related cc corresponding to the reference clock..
Samsung Electronics 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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