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Carrier Aggregation patents



      
           
This page is updated frequently with new Carrier Aggregation-related patent applications. Subscribe to the Carrier Aggregation RSS feed to automatically get the update: related Carrier RSS feeds. RSS updates for this page: Carrier Aggregation RSS RSS


Method and user equipment for synchronizing component carriers used in carrier aggregation

Lg Electronics

Method and user equipment for synchronizing component carriers used in carrier aggregation

Method and user equipment for synchronizing component carriers used in carrier aggregation

Samsung Electronics

Dual connectivity mode of operation of a user equipment in a wireless communication network


Date/App# patent app List of recent Carrier Aggregation-related patents
07/23/15
20150208415 
 Coverage enhancements with carrier aggregation patent thumbnailnew patent Coverage enhancements with carrier aggregation
Methods, systems, and devices are described for effective deployment of coverage enhancements in applications involving carrier aggregation or reception-limited devices, or both. Different categories of user equipment (ue) may be configured to receive simultaneous broadcasts and unicasts differently according physical limitations of each category of ue.
Qualcomm Incorporated


07/23/15
20150208398 
 Uplink grant, downlink assignment and search space method and apparatus in carrier aggregation patent thumbnailnew patent Uplink grant, downlink assignment and search space method and apparatus in carrier aggregation
Methods of mapping, indicating, encoding and transmitting uplink (ul) grants and downlink (dl) assignments for wireless communications for carrier aggregation are disclosed. Methods to encode and transmit dl assignments and ul grants and map and indicate the dl assignments to dl component carriers and ul grants to ul component carriers are described.
Interdigital Patent Holdings, Inc.


07/23/15
20150208386 
 Method for signaling control information, and apparatus therefor patent thumbnailnew patent Method for signaling control information, and apparatus therefor
The present invention relates to a wireless communication system, and more particularly, to a method for a terminal to transmit and receive control information and/or a response signal in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method includes the steps of: constituting a first cell group having a pcell; constituting a second cell group having at least one scell; and carrying out a process for transmitting and receiving specific cell-related control information and/or a response signal. The control information and/or the response signal are transmitted and received on the first cell group or the second cell group in the event the first cell group and the second cell group are managed by the same base station.
Lg Electronics Inc.


07/23/15
20150208372 
 Method and user equipment for synchronizing component carriers used in carrier aggregation patent thumbnailnew patent Method and user equipment for synchronizing component carriers used in carrier aggregation
According to the present invention, user equipment synchronizes a specific component carrier with an nct-type component carrier with respect to time and/or frequency. The cell synchronization method for synchronizing predetermined cells by user equipment according to the present invention may include receiving reference cell information relating to a first synchronization reference cell for the predetermined cells, acquiring first synchronization information from the first synchronization cell based on the reference cell information, and performing the synchronization of the predetermined cells based on the first synchronization information..
Lg Electronics Inc.


07/23/15
20150208269 
 Indication of cell mode and csi feedback rules for cell on-off procedure patent thumbnailnew patent Indication of cell mode and csi feedback rules for cell on-off procedure
Methods, systems, and devices are described for dynamic cell mode indication and reporting channel and interference feedback for dormant cells in a carrier aggregation environment. Indicators of cell mode for one or more secondary cells are sent using a transmission mechanism and may configure active or dormant sub-periods within the indicated periods.
Qualcomm Incorporated


07/23/15
20150208235 
 Dual connectivity mode of operation of a user equipment in a wireless communication network patent thumbnailnew patent Dual connectivity mode of operation of a user equipment in a wireless communication network
A system and method provide a security aspect for a ue in dual connectivity mode of operation in wireless communication networks. The system and method provide secure simultaneous transmission and reception in a secure manner between a user equipment (ue) and one or more enodebs (enbs) configured in an inter-enb carrier aggregation scenario.
Samsung Electronics Co., Ltd.


07/23/15
20150207700 
 Evaluation of radio network performance patent thumbnailnew patent Evaluation of radio network performance
A method and network node (400) for supporting evaluation of performance of a radio network. The network node employs carrier aggregation with multiple carriers used in corresponding multiple cells (cell 1, cell2, cell 3).
Telefonaktiebolaget L M Ericsson (publ)


07/23/15
20150207605 
 Optimized signaling of demodulation reference signal patterns patent thumbnailnew patent Optimized signaling of demodulation reference signal patterns
Orthogonality in cyclic shift (cs) and orthogonal cover code (occ) selection for dmrs in mimo is improved by new ndmrs to ndmrs(2) mapping patterns. Values in the mapping tables are arranged in sets, with minimum cs separation between the values in each set.
Telefonaktiebolaget L M Ericsson (publ)


07/23/15
20150207599 
 System and  partial bandwidth communication patent thumbnailnew patent System and partial bandwidth communication
A system and method for partial bandwidth communication. The system includes a device that has a transceiver configured to connect to a network, a memory storing an executable program and a processor.

07/16/15
20150200754 
 Aperiodic and periodic csi feedback modes for coordinated multi-point transmission patent thumbnailAperiodic and periodic csi feedback modes for coordinated multi-point transmission
Coordinate multi-point (comp) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports from a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points.
Samsung Electronics Co., Ltd.


07/16/15
20150200752 

Systems and methods for carrier aggregation


A ue for performing carrier aggregation is described. The ue determines a duplex method of each serving cell for carrier aggregation.
Sharp Laboratories Of America, Inc.


07/16/15
20150200751 

Enhanced pucch reporting for carrier aggregation


A user equipment (ue) for performing carrier aggregation is described. The ue includes a processor and instructions stored in memory that is in electronic communication with the processor.
Sharp Laboratories Of America, Inc.


07/09/15
20150195830 

Radio communication method, radio communication system, radio base station and user terminal


A radio communication method of a user terminal and a radio base station adopting carrier aggregation to adequately feed back channel state information of a plurality of cells from a user terminal to a radio base station, is disclosed. The user terminal generates channel state information of each cell in uplink control channel format 2 or in format 3 based on the number of cells to use in carrier aggregation, feeds back the generated channel state information via resources that the radio base station sets in an uplink control channel of a primary cell at a predetermined time in accordance with an uplink control channel format, and the radio base station secures the resources to set in the uplink control channel when the channel state information of the primary cell is generated in uplink control channel format 2, regardless of the number of cells to use in carrier aggregation..
Ntt Docomo, Inc.


07/09/15
20150195062 

Method and terminal for performing harq


One disclosure of the present invention provides a method for performing a harq in a carrier aggregation. The method can comprise a step of receiving setting information with respect to a plurality of cell groups for setting a harq ack/nack, wherein each of the plurality of cell groups can comprise one or a plurality of serving cells.
Lg Electronics Inc.


07/02/15
20150189646 

Control information transmission method and a device therefor


A method for transmitting ack/nack (acknowledge/negative ack) information for two or more carriers at a user equipment in a wireless communication system which supports carrier aggregation. The method according to one embodiment includes generating an ack/nack payload including two or more ack/nack sets, wherein each ack/nack set is associated with a corresponding carrier and have one or more ack/nack bits; and transmitting the ack/nack payload through a pucch (physical uplink control channel) or pusch (physical uplink shared channel).
Lg Electronics Inc.


07/02/15
20150189516 

Method for operating serving cell in wireless communication system to which carrier aggregation scheme is applied and device for same


A method for operating a serving cell by a user equipment (ue) in a wireless communication system is disclosed. Specifically, the method comprises the steps of: forming a plurality of secondary cells (scells), as one group, corresponding to a same frequency band through an upper layer; setting an enabled first scell among the plurality of scells as the serving cell and transmitting and receiving signals with a network; receiving a serving cell configuration message from the network to disable the first scell and enable a second scell; and setting the enabled second scell as the serving cell and transmitting and receiving signals with the network..
Lg Electronics Inc.


07/02/15
20150188582 

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


06/25/15
20150181638 

Radio link control duplication for carrier aggregation


This disclosure relates to carrier aggregation using separate rlc entities for different component carriers. According to one embodiment, a base station and a wireless device may establish a primary component carrier and at least one secondary component carrier according to a first radio access technology.
Apple Inc.


06/25/15
20150181604 

Component carrier (de)activation in communication systems using carrier aggregation


This invention relates to the proposal of component carrier (de)activation message that is allowing a activation or deactivation of one or more component carriers in the uplink or downlink. Furthermore, the invention relates to the use of the new component carrier (de)activation message in methods for (de)activation of downlink component carrier(s) configured for a mobile terminal, a base station and a mobile terminal.
Panasonic Intellectual Property Corporation Of America


06/25/15
20150181590 

Method and controlling soft buffer for tdd-fdd carrier aggregation


Provided is a method and apparatus for controlling soft buffer for tdd-fdd carrier aggregation. The method includes: establishing a radio resource control (rrc) connection with a base station through a first serving cell, the first serving cell supporting a time division duplex (tdd) mode; receiving an rrc message from the base station through the first serving cell, the rrc message comprising carrier aggregation (ca) configuration information, the ca configuration information comprising information of a second serving cell supporting a frequency division duplex (fdd) mode; determining a maximum number of dl harq processes for the second serving cell, the maximum number of dl harq processes for the second serving cell being differently determined according to a dl reference timing; and storing soft channel bits for a received transport block (tb) based on the determined maximum number of dl harq processes for the second serving cell..
Innovative Technology Lab Co., Ltd.


06/25/15
20150181578 

Transmission downlink signal in wireless communication system and transmission apparatus therefor


A method is described for receiving a physical signal by a communication apparatus in a wireless communication system supporting carrier aggregation of a first component carrier and a second component carrier. The communication apparatus receives a physical downlink control channel (pdcch) signal on the first component carrier.
Lg Electronics Inc.


06/25/15
20150181479 

Mechanism for radio link monitoring and radio link failure handling in small cell networks


A method of radio link monitoring (rlm) and radio link failure (rlf) handling over a small cell network is proposed. In a wireless network, a user equipment (ue) establishes a radio resource control (rrc) connection with a base station (enb), which is ue anchor.
Mediatek Inc.


06/25/15
20150180694 

Radio frequency circuit for intra-band and inter-band carrier aggregation


A radio frequency (rf) circuit for intra-band and inter-band carrier aggregation includes a receive path configured to receive an input signal. The rf circuit includes a low noise amplifier which has multiple separate input stages and multiple separate output stages.
Nvidia Corporation


06/25/15
20150180617 

Method of implementing automatically retransmission feedback in a ue in a carrier aggregation network


The invention proposes a method of implementing hybrid automatically retransmission feedback in a ue in a carrier aggregation network, wherein, the network comprises a self-scheduling primary cell and a secondary cell, and the method comprises: determining a reference frame configuration based on the frame configuration of the primary cell and the frame configuration of the secondary cell, wherein, the reference frame configuration is the type 5; determining a first quantity of downlink subframes of the secondary cell needing to be fed back in uplink subframes, according to the frame configuration of the secondary cell and downlink subframes, associated with uplink subframes, corresponding to the reference frame configuration; receiving from a base station a parameter about the number of downlink subframes fed back, and calculating a second quantity of downlink subframes needing to be fed back in the uplink subframes, based on the parameter; determining an actual quantity of downlink subframes actually fed back, based on the first quantity and the second quantity; implementing automatically retransmission feedback for downlink frames of the actual quantity in the physical shared channel, adjusted by uplink grants, in the uplink subframes.. .
Alcatel Lucent


06/18/15
20150173094 

System and providing priority data of band combinations for carrier aggregation


A system, devices and methods for providing input from a user equipment (ue) for the selection of a carrier channel combination for use in carrier aggregation. The exemplary system includes a ue configured to perform carrier aggregation, the ue storing a radio frequency (rf) calibration table including a plurality of transmission related requirements specific to the ue, the ue configured to generate priority data for each carrier channel combination supported for use in carrier aggregation based upon the rf calibration table and a network component receiving the priority data and an indication from the ue, the network component configured to select a carrier channel combination for use in carrier aggregation based upon the priority data, the network component transmitting carrier aggregation configuration data including the selected carrier channel combination to the ue..
Apple Inc.


06/18/15
20150173016 

Enhanced node b, user equipment and methods for discontinuous reception in inter-enb carrier aggregation


Embodiments of user equipment (ue) and methods for enhanced discontinuous reception (drx) operations for inter enb carrier aggregation (ca) in an lte network are generally described herein. In some embodiments, a ue is configured to be served by multiple serving cells.

06/18/15
20150173009 

Systems and methods for intelligent frequency selection in carrier aggregation enabled networks


Systems and methods that enhance radio link performance in a multi-carrier environment. A method may be performed by a ue that includes scanning a plurality of carrier components for a primary cell, determining a first bandwidth of the primary cell, scanning for a secondary cell, determining a second bandwidth of the secondary cell, determining a maximum aggregated bandwidth by combining the first bandwidth and the second bandwidth and when the maximum aggregated bandwidth exceeds a bandwidth capability of the ue, performing a cell selection procedure to select one of the primary cell or the secondary cell based on a higher of the first bandwidth and the second bandwidth..
Apple Inc.


06/18/15
20150172987 

Systems and methods for carrier channel selection in carrier aggregation enabled networks


A user equipment (ue) configured to connect to a network and operate in a carrier aggregation mode and a single carrier mode performs methods to select optimal component carriers. The methods include determining that a primary component carrier is operating less optimally than a secondary component carrier, sending an indication to the network that the primary component carrier is operating less optimally than the secondary component carrier, acquiring the secondary component carrier as a target primary component carrier and operating with the secondary component carrier as the target primary carrier component.
Apple Inc.


06/18/15
20150172974 

Home base station and supporting plurality of cells under carrier aggregation


A home base station and method for supporting a plurality of cells under carrier aggregation. The home base station includes a preamble generator and a preamble monitor.
Industrial Technology Research Institute


06/18/15
20150172039 

Method and defining transceiving timing of a physical channel in a tdd communication system which supports cross-carrier scheduling


A method, base station, and terminal employing time division duplex and carrier aggregation are disclosed. The method by the base station includes transmitting, to a terminal, scheduling information on a control channel of a first cell, and transmitting, to the terminal, data on a shared channel of a second cell based on the scheduling information.
Samsung Electronics Co., Ltd.


06/18/15
20150172032 

System and user equipment initiated management of carrier aggregation


Methods that are performed by a user equipment (ue) and corresponding methods of base stations that allow a ue to determine whether the ue is in a carrier aggregation enabled or disabled state. One exemplary embodiment of a method performed by a ue determines a first artificial value for a first parameter and a second artificial value for a power headroom (phr) for a secondary component carrier (scc), the first and second artificial values being substantially low relative to a configuration of the network, generates an artificial report including the first and second artificial values, transmits the artificial report to a primary cell providing a primary component carrier (pcc) and receives an indication that the ue is placed in a carrier aggregation disabled state..
Apple Inc.


06/11/15
20150163793 

Method and transmitting control information in a wireless communication system


The present invention relates to a wireless communication system. The present invention relates to a method for transmitting ack/nack in a wireless communication system in which carrier aggregation is set, and an apparatus therefor.
Lg Electronics Inc.


06/11/15
20150163750 

Method and controlling uplink power of user equipment in carrier aggregation scenario


The present invention provides a method and an apparatus for controlling uplink power of a user equipment, where the method includes: separately acquiring first maximum transmit power of the user equipment corresponding to a first subframe and second maximum transmit power of the user equipment corresponding to a second subframe; and when the first maximum transmit power and the second maximum transmit power are different, using a minimum value of the first maximum transmit power and the second maximum transmit power as first configured maximum transmit power, and performing power control over transmit power of multiple carriers in an overlap region according to the first configured maximum transmit power, so that total transmit power of the multiple carriers in the overlap region after the power control is lower than or equal to the minimum value of the first maximum transmit power and the second maximum transmit power.. .
Huawei Technologies Co., Ltd.


06/11/15
20150163728 

Wireless communication system, wireless communication method, mobile station device, and base station device


A wireless communication system includes a plurality of base station devices, and a mobile station device configured to communicate with the plurality of base station devices. The mobile station device includes: a necessity determining unit configured to refer to a communication state of a first base station device that is a base station device in communication with the mobile station device, and determine necessity of carrier aggregation; a cell search unit configured to, in a case that the necessity determining unit determines that carrier aggregation is necessary, search a communication available base station device from the plurality of base station devices; and a carrier aggregation requesting unit configured to, in a case that at least one communication available base station device is detected by the search, transmit a request for carrier aggregation to the first base station device, thus providing a wireless communication system that can obtain an excellent speed..
Sharp Kabushiki Kaisha


06/11/15
20150163041 

Restrictions on transmissions of control plane data with carrier aggregation


The disclosure describes apparatus and methods for communicating control plane data with a mobile device in a long term evolution (lte) network employing carrier aggregation. A network apparatus, such as an enhanced nodeb (enodeb) or a mobility management entity (mme), can be configured to evaluate a measurement report (mr) received from a mobile device for one or more radio frequency (rf) conditions associated with a primary network cell and one or more rf conditions associated with a secondary network cell.
Apple Inc.


06/11/15
20150163038 

Communication method using a carrier aggregation and apparatus therefore


A method for a base station to receive an uplink transmission from a user equipment configured with multiple uplink component carriers in a wireless communications system. The method according to one embodiment includes transmitting, to the user equipment, radio resource control (rrc) configuration information for a sounding reference signal (srs), the rrc configuration information including information for periodically receiving the srs from the user equipment; transmitting, to the user equipment, layer 2 (l2) control information indicating states of the plurality of uplink component carriers; and performing a procedure for periodically receiving the srs from the user equipment on a corresponding uplink component carrier in use of the rrc configuration information.
Lg Electronics Inc.


06/04/15
20150156774 

Interworking base station between a wireless network and a cellular network


This invention concerns an interworking base station (bs) between a wireless network and a cellular network. The base station (bs) is adapted to support carrier aggregation and is adapted to employ : ▪ a primary carrier (pc) using cellular access technology providing communication between a user terminal (ue) and said base station, said primary carrier (pc) being used to assure a robust communication link; ▪ at least one secondary carrier (sc) using a wireless access technology providing communication between said user terminal (ue) and said base station (bs), said at least one secondary carrier (sc) being used to assure a high rate wireless connexion; ▪ a control mechanism (mac mux) to direct the delivery of high-speed data services over the primary carrier (pc) using a cellular access technology, the secondary carrier (sc) using wireless access technology or the combination of the cellular and wireless access technologies..
Alcatel Lucent


06/04/15
20150156773 

Control of carrier aggregation


A method and an apparatus are described by which carrier aggregation in a radio network is controlled on the basis of a group of cells which can be aggregated. For example, carrier aggregation group information regarding the group of cells which can be aggregated can be established, transmitted, read and the like, access control policy regarding the group of cells in the radio network which can be aggregated can be set.

06/04/15
20150156770 

Data and control multiplexing for uplink mimo with carrier aggregation and clustered-dft


A method and apparatus for signal processing in a wireless transmit receive unit (wtru), including generating a plurality of data bits and a plurality of control bits, mapping the data bits and control bits to one or more codewords, multiplexing the data bits and control bits, dividing the bits into layers, allocating control bits to each layer based on a channel quality of each codeword and a channel quality of each layer, and channel interleaving each layer for output to one or more antennas.. .
Interdigital Patent Holdings, Inc.


06/04/15
20150156764 

Method for signaling control information, and apparatus therefor


The present invention relates to a wireless communication system. In detail, the invention relates to a method for a terminal to transmit a uci in a carrier aggregation-based wireless communication system, and to an apparatus therefor, wherein the method involves the steps of: forming a first cell group having a pcell; forming a second cell group having one or more scells; receiving one or more data in the second cell group; and transmitting harq-ack information on the one or more data through a pucch, wherein, when the first and second cell groups are managed by an identical base station, the harq-ack information is transmitted in the pcell, and, when the first and second cell groups are managed by different base stations, the harq-ack information is transmitted in the second cell group..
Lg Electronics Inc.


06/04/15
20150156695 

Systems and methods for cross-cell carrier aggregation for coverage balance improvement


A system and methods that are performed by a macro cell and a user equipment (ue) to implement a carrier aggregation mode in a network. The system includes a macrocell including a first coverage area and a plurality of small cells, each of the small cells including a second coverage area wherein the plurality of second coverage areas substantially cover the first coverage area.
Apple Inc.


06/04/15
20150156693 

Device to device communications with carrier aggregation


Device-to-device (d2d) communications in conjunction with carrier aggregation. A base station (bs) may coordinate d2d communication between two wireless user equipment (ue) devices.
Apple Inc.


06/04/15
20150156636 

Carrier aggregation using unlicensed frequency bands


carrier aggregation using unlicensed frequency bands. A primary carrier for communication between a base station (bs) and a wireless user equipment (ue) device may be configured according to a first wireless communication technology.
Apple Inc.


06/04/15
20150156635 

Systems and methods for carrier aggregation deployment and organization in unlicensed bands


Described herein are systems and methods for carrier aggregation deployment and organization in unlicensed bands. A method may comprise scanning, by a transceiver within a base station, channels in a band of interest, reporting, by the transceiver, signal measurement information to the base station, cell searching, by the transceiver, channels in the band of interest, determining channel information for neighboring each channel, and transmitting, by the transceiver, the channel information to the base station..
Apple Inc.


05/28/15
20150146806 

System and radio frequency carrier aggregation


A system and method for aggregation of a plurality of wireless communication signals in a common radio frequency transmitter. A multiple subchannel multiplexed (msm) signal within a frequency band, and having a communication protocol with pilot signals estimating a channel state and efficient signal demodulation with a mobile receiver is combined with another signal.
Plusn, Llc


05/28/15
20150146805 

System and radio frequency carrier aggregation


A system and method for aggregation of a plurality of wireless communication signals in a common radio frequency transmitter. A multiple subchannel multiplexed (msm) signal within a frequency band, and having a communication protocol with pilot signals estimating a channel state and efficient signal demodulation with a mobile receiver is combined with another signal.
Plusn, Llc


05/28/15
20150146585 

Apparatuses and method using enhanced control channel information for tdd-fdd carrier aggregation


Apparatuses and methods for carrier aggregation are generally described herein. An evolved nodeb (enb) may transmit downlink control information (dci) on a control channel portion for a primary cell (pcell) downlink (dl) subframe.
Intel Corporation


05/21/15
20150141068 

Power control


Measures for enabling per-carrier power control for inter-band multi-carrier capable devices, such as for example inter-band carrier aggregation capable devices. Such measures may for example comprise calculating a desired cumulative output power value for a combination of at least two uplink carriers of a terminal device, said two uplink carriers operating on different bands, setting an output power value for each of the at least two uplink carriers of the terminal device based on the calculated desired cumulative output power value, and providing, for the terminal device, a power control instruction for the at least two uplink carriers at the terminal device in accordance with the output power values set for the at least two uplink carriers..
Broadcom Corporation


05/21/15
20150139173 

Method for communicating with data through component carriers in mobile communication system to which carrier aggregation method is applied and apparatus therefor


The present invention relates to a method for enabling a terminal to communicate with data by modifying an association relationship among component carriers in a mobile communication system supporting carrier aggregation and an apparatus therefor. The method in accordance with one embodiment of the present invention, comprises: receiving a message including identifier information for modifying an association relationship among at least one downlink component carrier and at least one uplink component carrier from a base station; receiving predetermined data through at least one downlink component carrier from the base station; and transmitting feedback data to the base station for data received through the uplink component carrier modified according to the identifier information..
Lg Electronics Inc.


05/21/15
20150139171 

Method and apparatus of activating/deactivating secondary carriers in mobile communication system using carrier aggregation


A method for activating/deactivating secondary carriers of a user equipment (ue) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation control element (ce) in a first sub-frame from a base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation ce indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame..
Samsung Electronics Co., Ltd.


05/21/15
20150139170 

Method and apparatus of activating/deactivating secondary carriers in mobile communication system using carrier aggregation


A method for activating/deactivating secondary carriers of a user equipment (ue) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation control element (ce) in a first sub-frame from a base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation ce indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame..
Samsung Electronics Co., Ltd.


05/21/15
20150139150 

Method for configuring phich carrier linkage


There is provided a method of configuring the downlink component carrier between one or more linkage methods for phich reception on user equipment (ue), which is configured for carrier aggregation, over a mobile communication network. This method includes (a) providing an indicator, and (b) determining whether the phich carrier linkage should be dynamic linkage or cell specific, based on the value of the indicator..
Nec Corporation


05/21/15
20150139142 

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


05/21/15
20150139114 

Device and antenna pictogram display method


There is disclosed user equipment including a communication unit for executing carrier aggregation and for executing communication through a plurality of carriers, and an antenna pictogram display unit for displaying, through an antenna pictogram, at least whether communication is allowed. When execution of the carrier aggregation is allowed, the antenna pictogram display unit displays an indication that the execution of the carrier aggregation is allowed together with at least one antenna pictogram..
Ntt Docomo, Inc.


05/14/15
20150134838 

Method and controlling random access in wireless communication system supporting carrier aggregation


A random access procedure control method and apparatus is provided for controlling a random access procedure efficiently in a mobile communication system supporting carrier aggregation. The method for controlling random access procedure of a terminal in a wireless communication system having a primary cell and at least one secondary cell includes initiating a random access procedure in the primary cell and the at least one secondary cells, detecting a random access failure of a terminal performing the random access procedure, determining whether the random access failure is detected in the primary cell or the at least one secondary cell, and determining whether to continue the random access procedure according to a result of the determining of whether the random access failure is detected..

05/14/15
20150134837 

Method and controlling random access in wireless communication system supporting carrier aggregation


A random access procedure control method and apparatus is provided for controlling a random access procedure efficiently in a mobile communication system supporting carrier aggregation. The method for controlling random access procedure of a terminal in a wireless communication system having a primary cell and at least one secondary cell includes initiating a random access procedure in the primary cell and the at least one secondary cells, detecting a random access failure of a terminal performing the random access procedure, determining whether the random access failure is detected in the primary cell or the at least one secondary cell, and determining whether to continue the random access procedure according to a result of the determining of whether the random access failure is detected..

05/14/15
20150133067 

Systems and methods related to carrier aggregation front-end module applications


Improved switched multiplexer architecture for supporting carrier aggregation in front-end applications. In some embodiments, an n-plexing system can include an assembly of filters configured to provide n filtered paths, and a switching circuit in communication with the assembly of filters.

05/14/15
20150131635 

Method and apparatus of configuring downlink timing and transmitting random access response in mobile communication system using carrier aggregation


A method of configuring downlink timings and transmitting a random access response message is provided for a random access procedure in a long term evolution (lte) system supporting carrier aggregation. The method for adjusting timing of a terminal in a wireless communication system supporting carrier aggregation of at least one carrier includes transmitting a random access preamble to a base station, and receiving a random access response with a timing advance command (tac) for commanding uplink timing adjustment from the base station, wherein the random access response comprises information indicating a timing advance group (tag) to which the tac is applied..

05/14/15
20150131602 

Apparatus and defining physical channel transmit/receive timings and resource allocation in tdd communication system supporting carrier aggregation


A method of defining physical channel transmit/receiving timings and resource allocation is provided for use in a time division duplex (tdd) communication system supporting carrier aggregation. A method for receiving, at a base station, a hybrid automatic repeat request (harq) acknowledgement from a terminal in a time division duplex (tdd) system supporting carrier aggregation of a primary cell and at least one secondary cell includes transmitting a downlink physical channel through one of the primary and secondary cells, receiving the harq acknowledgement corresponding to the downlink physical channel of the primary cell at a first timing predetermined for the primary cell, and receiving the harq acknowledgement corresponding to the downlink physical channel of the secondary cell at second timing, wherein the second timing is determined according to the first timing..

05/14/15
20150131598 

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


A method for transmitting, by a base station, signals in a communication system. Control information for a subsidiary carrier band is transmitted to a mobile station via a primary carrier band.

05/14/15
20150131596 

Secondary carrier activation/deactivation mobile communication system supporting carrier aggregation


A method for activating/deactivating secondary carriers of a user equipment (ue) in a mobile communication system supporting carrier aggregation is provided. The method comprises, receiving a control message including an activation/deactivation control element (ce) in a first sub-frame from a base station, identifying an activation command or a deactivation command of at least one secondary carrier based on the control message, determining whether a current sub-frame is a second sub-frame or not, performing at least one first operation for the at least one secondary carrier in a second sub-frame, and performing, when the activation/deactivation ce indicates deactivation of the at least one secondary carrier, at least one second operation for the at least one secondary carrier no later than the second sub-frame..

05/14/15
20150131569 

Uplink control information signaling in inter-site downlink carrier aggregation scenarios


There are provided measures for uplink control information signaling in inter-site downlink carrier aggregation scenarios. Such measures exemplarily include obtaining uplink transmission resources for an uplink control information transmission on said primary carrier, deriving a receiving timing for said uplink control information transmission, detecting said uplink control information transmission on said primary carrier based on said uplink transmission resources and said receiving timing, and decoding uplink control information from said uplink control information transmission..

05/14/15
20150131536 

Method to enable wireless operation in license exempt spectrum


Described herein are methods to enable wireless cellular operation in unlicensed and lightly licensed, (collectively referred to as license exempt spectrum. Cognitive methods are used to enable use of unlicensed bands and/or secondary use of lightly licensed bands.

05/14/15
20150131494 

Hybrid automatic repeat request-acknowledge (harq-ack) codebook generation for inter-band time division duplex (tdd) carrier aggregation (ca)


Technology to determine a hybrid automatic repeat request-acknowledge (harq-ack) codebook size for inter-band time division duplex (tdd) carrier aggregation (ca) is disclosed. In an example, a user equipment (ue) operable to determine a harq-ack codebook size for inter-band tdd ca can include computer circuitry configured to: determine a harq bundling window for inter-band tdd ca including a number of downlink (dl) subframes using harq-ack feedback; divide the harq bundling window into a first part and a second part; and calculate the harq-ack codebook size based on the first part and the second part.

05/07/15
20150126242 

Method and configuring power headroom information in mobile communication system supporting carrier aggregation


A method and apparatus for configuring power headroom report (phr) of a user equipment (ue) efficiently in a mobile communication system supporting carrier aggregation are provided. The method includes generating a header including a lcid for identifying extended phr and l indicating a length of the extended phr, and inserting power headrooms (phs) of multiple activated carriers into the extended phr of one of the carriers..
Samsung Electronics Co., Ltd.


05/07/15
20150124789 

Method and deactivating secondary carriers in mobile communication system using carrier aggregation


A method and an apparatus in a mobile communication system are provided. The method includes receiving, by the terminal, first information for activating a secondary cell (scell) from a base station, activating, by the terminal, the scell based on the first information, starting, by the terminal, a timer associated with the scell, restarting, by the terminal, if second information for the activated scell is received from the base station, the timer associated with the scell, and, if the timer expires, applying by the terminal, one or more corresponding actions for deactivating the scell no later than in a predefined subframe, wherein the second information includes at least one of an uplink grant on the activated scell, a downlink assignment on the activated scell, and a control message for activating the scell..
Samsung Electronics Co., Ltd.


05/07/15
20150124788 

Method and deactivating secondary carriers in mobile communication system using carrier aggregation


A method and an apparatus in a mobile communication system are provided. The method by a terminal in the mobile communication system includes receiving, by the terminal, first information for activating a secondary cell (scell) from a base station, activating, by the terminal, the scell based on the first information, starting, by the terminal, a timer associated with the scell, restarting, by the terminal, if second information for the activated scell is received from the base station, the timer associated with the scell, and if the timer expires, applying by the terminal, one or more corresponding actions for deactivating the scell no later than in a predefined subframe.
Samsung Electronics Co., Ltd.


05/07/15
20150124771 

Carrier aggregation in wireless communication systems


Provided is a data transmission system using a carrier aggregation. The data transmission system may assign a radio resource based on a correspondence relationship between a downlink and an uplink, and may transmit data using the assigned radio resource..
Electronics And Telecommunications Research Institute


05/07/15
20150124768 

Method and deactivating secondary carriers in mobile communication system using carrier aggregation


A method and an apparatus in a mobile communication system are provided. The method by a terminal in the mobile communication system includes receiving, by the terminal, first information for activating a secondary cell (scell) from a base station, activating, by the terminal, the scell based on the first information, starting, by the terminal, a timer associated with the scell, restarting, by the terminal, if second information for the activated scell is received from the base station, the timer associated with the scell, and if the timer expires, applying by the terminal, one or more corresponding actions for deactivating the scell no later than in a predefined subframe.
Samsung Electronics Co., Ltd.


05/07/15
20150124767 

Method and deactivating secondary carriers in mobile communication system using carrier aggregation


A method and an apparatus in a mobile communication system are provided. The method by a terminal in a mobile communication system includes receiving first information for activating a secondary cell (scell) from a base station, activating the scell based on the first information, starting a timer associated with the scell, restarting, if second information for the activated scell is received from the base station, the timer associated with the scell, and if the timer expires, applying by the terminal, one or more corresponding actions for deactivating the scell no later than in a predefined subframe.
Samsung Electronics Co., Ltd.


05/07/15
20150124766 

Method and deactivating secondary carriers in mobile communication system using carrier aggregation


A method and an apparatus in a mobile communication system are provided. The method includes receiving, by a terminal, first information for activating a secondary cell (scell) from a base station, activating, by the terminal, the scell based on the first information, starting, by the terminal, a timer associated with the scell, restarting, by the terminal, if second information for the activated scell is received from the base station, the timer associated with the scell, and if the timer expires, applying by the terminal, one or more corresponding actions for deactivating the scell no later than in a predefined subframe.
Samsung Electronics Co., Ltd.


05/07/15
20150124743 

Techniques for using carrier aggregation in dual connectivity wireless communications


Certain aspects of the present disclosure relate to procedures for aggregation in dual connectivity. In one aspect, a wireless device may receive configuration information to communicate with a first network entity (e.g., master enodeb) through a first primary cell (pcell) of a corresponding group of cells of the first network entity, and with a second network entity (e.g., secondary enodeb) through a second primary cell (pcellscg) of a corresponding group of cells of the second network entity.
Qualcomm Incorporated


05/07/15
20150124729 

Method for receiving downlink control channel by means of terminal in wireless communication system and same


The present invention relates to a method for receiving a downlink control channel by means of a terminal in a wireless communication system and to an apparatus for same. More specifically, the present invention relates to a method for detecting downlink control information by means of a terminal in a wireless communication system that supports carrier aggregation, the method comprising: a step of receiving resource region information for an enhanced physical downlink control channel (epdcch) from a base station; a step of constructing at least one resource block as a search space for epdcch monitoring based on the resource region information; and a step of monitoring the search space to detect downlink control information.
Lg Electronics Inc.


05/07/15
20150124727 

Ack/nak bit bundling in carrier aggregation scenarios


Techniques are disclosed for ack/nak bit bundling in carrier aggregation scenarios. Such measures exemplarily comprise generating a set of acknowledgement bits confirming receipt of payload data of a radio frame in a carrier aggregation mode aggregating a primary and at least one secondary carrier, said radio frame being divided into a plurality of downlink subframes and uplink subframes, each of said downlink subframes comprising at least one codeword per carrier, each of said acknowledgement bits is allocated to one of said codewords of one of said downlink subframes, and applying spatial domain bundling and/or time domain bundling on said set of acknowledgement bits distinctive for each of said primary and said at least one secondary carrier, wherein said spatial domain bundling is an and operation of all acknowledgement bits allocated to each codeword of one carrier of said primary and said at least one secondary carrier and one downlink subframe..
Nokia Solutions And Networks Oy


05/07/15
20150124676 

Method and scheduling use of radio resources in a wireless network


The present disclosure describes techniques and apparatuses for scheduling use of radio resources in a wireless network. In some aspects a method is described that includes receiving an indication from a mobile device of an in-device coexistence problem, and determining, from the parameters in the received indication, one or more component carriers of the carrier aggregation affected by the in-device coexistence problem.
Marvell World Trade Ltd.


05/07/15
20150124665 

Method and apparatus of controlling periodic csi reporting


Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic csi reporting available in a system supporting a tdd-fdd aggregation operation and an fdd-tdd aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix indicator may be determined based on the cell type of a primary serving cell for a tdd-fdd carrier aggregation and an fdd-tdd carrier aggregation..
Innovative Technology Lab Co., Ltd.


05/07/15
20150124638 

Method for virtual carrier aggregation, base station, and user equipment


A method for virtual carrier aggregation, a base station, and a user equipment are provided. A base station receives measurement capability indication information and indication information indicating a capability of receiving data transmission that are reported by a ue.
Huawei Technologies Co., Ltd.


05/07/15
20150124598 

Method and device for processing buffer state report in wireless communication system using inter-enb carrier aggregation technology


The present invention proposes a method of processing a buffer state report when a wireless communication system uses inter-enb carrier aggregation technology. According to the present invention, a terminal may be provided with a proper amount of uplink resource allocations by notifying base stations of a buffer state..
Samsung Electronics Co., Ltd.


04/30/15
20150117393 

Method and heterogeneous carrier aggregation


Provided herein is a method and apparatus for heterogeneous carrier aggregation, the method including calculating interferences regarding a plurality of interference paths between an adjacent cell and serving cell; determining weighted values for the plurality of interference paths in the serving cell; calculating an accumulated value (accumulated margin or accumulated interference) regarding the plurality of interference paths based on the weighted values in the serving cell; determining a component carrier to be used in the carrier aggregation based on the accumulated value calculated in the serving cell; and performing the carrier aggregation based on the component carrier determined.. .
Electronics And Telecommunications Research Institute


04/30/15
20150117287 

Method and transceiving data using plurality of carriers in mobile communication system


The present invention relates to a method and apparatus for performing a discontinuous reception (drx) operation while transceiving data using a plurality of carriers in a mobile communication system. The communication method for a terminal according to one embodiment of the present invention comprises receiving a control message, including setting information of a secondary serving cell (scell) to be added and discontinuous reception setting information, from a primary serving cell (pcell) and applying, if the control message includes an indicator indicating that the first base station to which the scell to be added belongs and the second base station to which the pcell belongs are different from each other, the drx setting information to the serving cell of a first base station.
Samsung Electrics Co., Ltd.


04/30/15
20150117272 

Carrier aggregation feedback method, device and system for different tdd uplink/downlink configurations


Disclosed are a carrier aggregation feedback method, device and system relating to communication technologies. The number m of subframes requiring ack/nack feedback in a current uplink subframe is determined according to a tdd uplink/downlink configuration that corresponds to each carrier and is used for determining a timing relationship based on which a ue reports ack/nack feedback information of the carrier, and then ack/nack feedback information transmitted by a terminal device in the current uplink subframe and a candidate channel resource used for channel selection are determined according to the value of m, so as to transmit the ack/nack feedback information in the candidate channel resource by using pucch format 1b in combination with channel selection..
China Academy Of Telecommunications Technology


04/23/15
20150111510 

Transmitter harmonic cancellation for carrier aggregation/multiband operation


A method and apparatus for cancelling, from signals received by a radio device in a first frequency band, interference generated by the radio device in the first frequency band when the radio device transmits simultaneously radio signals on at least a second frequency band.. .
Broadcom Corporation


04/23/15
20150110016 

Method and transmitting control information through uplink


A technique according to the present specification relates to a method and apparatus for transmitting control information, which support carrier aggregation, through an uplink. Particularly, bits to be transmitted through a physical uplink control channel (pucch) are acquired, and at least one channel state information (csi) bit indicating a wireless channel state and a plurality of ack/nack bits related to a plurality of carriers are acquired and transmitted.
Lg Electronics Inc.


04/23/15
20150110010 

Signaling method to configure multiple carriers used by wireless device and base station in carrier aggregation operation


The present disclosure proposes a dynamic resource allocation mechanism for a user equipment and a base station having multiple connections. According to one of the exemplary embodiment, the present disclosure proposes a user equipment (ue) which includes at least but not limited to a transmitter and a receiver for transmitting and receiving data respectively and a processing circuit coupled to the transmitter and the receiver and is configured for establishing a first connection with a first base station by using the transmitter and the receiver, establishing a second connection with a second base station by using the transmitter and the receiver, receiving through the receiver a dynamic time division duplexing (tdd) subframe configuration from either the first base station and the second base station, wherein the dynamic tdd subframe configuration is not received from a system information block (sib), and operating according to the dynamic tdd subframe configuration..
Acer Incorporated


04/23/15
20150109977 

Front end configurations supporting inter-band carrier aggregation


A method and apparatus support carrier aggregation. The apparatus includes a first antenna configured to transmit or receive signals in both a first high frequency band and a first low frequency band and a second antenna configured to transmit or receive signals in both a second high frequency band and a second low frequency band.
Samsung Electronics Co., Ltd.


04/16/15
20150103774 

Radio communication system, radio base station apparatus and radio communication method


The present invention is designed to feed back a plurality of pieces of csi with respect to each transmission point, when comp transmission is applied in the framework of carrier aggregation. The radio communication method according to the present invention is a radio communication method in a radio communication system including a plurality of radio base station apparatuses and a user terminal that is configured to be able to perform coordinated multi-point transmission/reception with the plurality of radio base station apparatuses, and, in this radio communication method, when coordinated multi-point transmission is applied, the radio base station apparatus, transmits csi set information on a set including at least one csi through higher layer signaling, and also transmits csi request information in dci, and the user terminal feeds back csi based on the csi set information and the csi request information..
Ntt Docomo, Inc.


04/16/15
20150103752 

Harq memory space management for lte carrier aggregation


A user equipment (ue) receives and decodes a first erroneous transport block (tb) from a base station in a mobile communication network. The ue allocates a first soft buffer having a first buffer size.
Mediatek, Inc.


04/16/15
20150103705 

Method for transmitting control information and same


A method for transmitting uplink control information by a user equipment in a wireless communication system supporting carrier aggregation of a plurality of cells and operating in a time division duplex (tdd). The method according to one embodiment includes receiving, by the user equipment, downlink signals on the plurality of cells, each of the downlink signals requiring a hybrid automatic repeat request acknowledgement (harq-ack) response; and transmitting, by the user equipment, the uplink control information including at least one per-cell harq-ack bit for each cell in an uplink subframe via a physical uplink shared channel (pusch).
Lg Electronics Inc.


04/09/15
20150099501 

Method and device for transmitting and receiving data by using multiple carriers in mobile communication system


To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (ue) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the ue are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the ue to transmit and receive high-speed data through carrier aggregation can increase..
Samsung Electronics Co., Ltd.


04/09/15
20150098532 

Adaptive lna operation for shared lna receiver for carrier aggregation


A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines whether a timing offset between a pcc and an scc possibly exceeds a threshold.
Qualcomm Incorporated


04/09/15
20150098367 

Method and apparatus of controlling for uplink scheduling and harq timing


The present invention relates to an apparatus and method for controlling an uplink (ul) scheduling and hybrid automatic repeat request (hard) timing supported in a tdd-fdd ca environment. According to aspects of the present invention, in a tdd-fdd carrier aggregation deployment environment, an efficient ul scheduling/harq operation may be performed for a ue in which a cross-carrier scheduling is configured..
Innovative Technology Lab Co., Ltd.


04/02/15
20150092733 

Systems/methods of carrier aggregation


Various embodiments of carrier aggregation are provided that increase communications capacity and throughput. According to some embodiments, a receiver may be configured with a plurality of receiver chains and, responsive to an aggregate bandwidth of an overall signal that is to be received by the receiver, a plurality of components of the overall signal, each comprising a bandwidth that is less than a frequency span of the overall signal, are received by a respective plurality of receiver chains.
Eices Research, Inc.


04/02/15
20150092730 

Communication active and non-active carriers using carrier aggregation and an apparatus therefore


A method for a base station to receive an uplink transmission from a user equipment. The method according to one embodiment includes transmitting, to the user equipment, radio resource control (rrc) configuration information for channel status report, the rrc configuration information including information for periodically receiving channel status report from the user equipment; transmitting, to the user equipment, layer 2 (l2) control information indicating states of the plurality of downlink component carriers, each of the plurality of downlink component carriers being indicated as one of an active state and a non-active state; and performing a procedure for periodically receiving channel status report for a corresponding downlink component carrier from the user equipment in use of the rrc configuration information.
Lg Electronics Inc.


04/02/15
20150092713 

Component carrier activation/deactivation in multi-carrier systems


Methods and apparatus for addressing wireless transmit/receive unit (wtru) behavior in response to configuration, configuration parameters and access issues related to the activation/deactivation process when the wtru may be configured with multiple serving cells or carrier aggregation.. .
Interdigital Patent Holdings, Inc.


04/02/15
20150092709 

Method and lte cell search using multiple receivers of a mobile device


A method using multiple receivers of a wireless communication device to accelerate cell selection and reselection is disclosed. Multiple receivers of the wireless device are used to implement carrier aggregation in lte connected mode.
Apple Inc.


04/02/15
20150092683 

Dynamic secondary cell (scell) allocation and frequency planning for carrier aggregation


Certain aspects of the present disclosure provide methods and apparatus for dynamically secondary cell (scell) allocation and frequency planning for carrier aggregation. One example system for radio frequency (rf) signal processing, generally includes a first integrated circuit (ic) comprising two or more receive chains, each receive chain for processing one of multiple component carriers in a carrier aggregation (ca) signal, wherein the first ic is configured to downconvert a signal associated with a primary cell of the ca signal; and a second ic configured to downconvert one or more signals associated with one or more secondary cells of the ca signal.
Qualcomm Incorporated


04/02/15
20150092680 

Flexible receiver architecture for multiple component carrier aggregation in down link


A technique to provide receiver processing of a plurality of component carrier signals that are received from one or more transmitting source by a terminal device, in which filtered component carrier signals are processed and aggregated in the terminal device. Two of the component carrier signals may be in a same frequency band grouping or two or more of the component carrier signals may be in a different band grouping.
Broadcom Corporation


04/02/15
20150092653 

Methods and devices for carrier aggregation in a wireless communication system


The disclosure relates to a network node 21,, 2n; 31,, 3n of a communication system 1 for wireless communication. The network node 21,, 2n; 31,, 3n is configured to utilize a first bandwidth, b1, allocated in accordance with a first communication standard, wherein a first carrier and a second carrier are allocated within the first bandwidth b1.
Telefonaktiebolaget L M Ericsson (publ)


04/02/15
20150092633 

Generation of harq-ack information and power control of harq-ack signals in tdd systems with downlink of carrier aggregation


Methods and apparatus are provided for a user equipment (ue) configured to have multiple cells in a downlink (dl) of a time division duplex (tdd) communication system so as to determine a power of an acknowledgement signal that the ue transmits in a control channel and to determine a number of acknowledgement information bits that the ue multiplexes with data information bits in a data channel. A transmission power of the control signal is determined based on dl assignment index (dai) information elements (ies) in dl scheduling assignments (sas) that the ue detects through multiple transmission time intervals and through the multiple configured dl cells.
Samsung Electronics Co., Ltd.


04/02/15
20150092632 

Method and apparatus of uplink scheduling and harq timing


The present invention 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.




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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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