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Carrier Aggregation patents

      

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




 User apparatus, base station, and carrier aggregation control method patent thumbnailnew patent User apparatus, base station, and carrier aggregation control method
A user apparatus in a mobile communication system supporting carrier aggregation includes a measurement unit configured to measure a reception timing difference between component carriers; an information notification unit configured to notify the base station of information on the reception timing difference measured by the measurement unit; and a control unit configured to perform addition or deletion of a secondary cell in the carrier aggregation based on an instruction from the base station that receives the information.. .
Ntt Docomo, Inc.


 Pooled resource carrier aggregation patent thumbnailnew patent Pooled resource carrier aggregation
A wireless communication system having pooled carrier aggregation, according to one aspect of the present invention, includes a multi-sector cell site having a plurality of primary cells and at least one secondary cell. Each of the primary cells has a primary cell coverage area.
Commscope Technologies Llc


 Cyclic redundancy check for uplink control information on control and data channels patent thumbnailnew patent Cyclic redundancy check for uplink control information on control and data channels
Methods, systems, and devices are described for wireless communication. One method includes identifying uplink control information (uci) for a component carrier (cc) of a carrier aggregation (ca) configuration which may include a primary cell (pcell) and, in some aspects, a physical uplink control channel (pucch) enabled secondary cell (scell); determining to include cyclic redundancy check (crc) information for the uci based at least in part on a uci characteristic or an uplink control channel format; and transmitting an uplink channel comprising the uci and the crc information..
Qualcomm Incorporated


 Wireless access node and  signaling aggregation of a plurality of ue devices through a hub ue device patent thumbnailnew patent Wireless access node and signaling aggregation of a plurality of ue devices through a hub ue device
A wireless communication network aggregates wireless network control signaling through a hub user equipment (ue) using carrier aggregation (ca). The wireless access node selects the hub ue and directs the hub ue to aggregate the wireless network control signaling for other ues by using ca traffic channels with the wireless access node.
Sprint Communications Company L.p.


 Inter-operability test indication for uplink-downlink configuration combinations for primary cell and secondary cell for wireless networks using carrier aggregation patent thumbnailnew patent Inter-operability test indication for uplink-downlink configuration combinations for primary cell and secondary cell for wireless networks using carrier aggregation
A technique is provided to control transmitting, by a mobile station (ms) that uses carrier aggregation, a message including an interoperability test (iot) indication for one or more uplink-downlink (ul-dl) configuration combinations of time-division-duplex (tdd) radio frames for use by a primary cell and a secondary cell. In one example implementation, an iot indication may be provided for one or more (or each) uplink-downlink configuration combinations (e.g., one iot indication per ul-dl configuration combination).
Nokia Solutions And Networks Oy


 Device, network, and  wideband lte with virtual (baseband) carrier aggregation patent thumbnailDevice, network, and wideband lte with virtual (baseband) carrier aggregation
Methods for wireless communications over a wideband carrier are provided. Time-frequency resources of the wideband carrier within a transmission time interval are divided into multiple time-frequency resource blocks.
Futurewei Technologies, Inc.


 Method and  reporting channel status in cellular radio communication system patent thumbnailMethod and reporting channel status in cellular radio communication system
A method and an apparatus for reporting channel status in a cellular radio communication system are disclosed. In a communication system supporting a carrier aggregation of a component carrier to which an fdd scheme is applied and a component carrier to which a tdd scheme is applied, a base station identifies a tdd uplink-downlink configuration of a tdd primary cell, and configures a csi transmission period of an fdd secondary cell according to the tdd uplink-downlink configuration.
Samsung Electronics Co., Ltd.


 User equipment, base station and uplink carrier aggregation communication method patent thumbnailUser equipment, base station and uplink carrier aggregation communication method
One aspect of the present invention relates to user equipment having an uplink carrier aggregation function, comprising: a radio communication control unit configured to control radio communication with a base station; a radio positioning unit configured to perform a radio positioning function based on a radio signal received from a positioning system; and a radio positioning state reporting unit configured to report, when uplink carrier aggregation is configured, activation or deactivation of the radio positioning function to the base station.. .
Ntt Docomo, Inc.


 User equipment and transmission control method patent thumbnailUser equipment and transmission control method
User equipment for transmitting an uplink control channel in multiple cells simultaneously in a radio communication system where transmission of the uplink control channel in a secondary cell is supported is disclosed. One aspect of the present invention relates to the user equipment, comprising: a transmission and reception unit configured to transmit and receive a radio channel to/from a base station via multiple cells configured for carrier aggregation; a simultaneous transmission availability determination unit configured to determine, in response to occurrence of an event where an uplink control channel is to be transmitted in the multiple cells simultaneously, whether the uplink control channel can be transmitted in the multiple cells simultaneously; and a transmission control unit configured to instruct the transmission and reception unit to transmit the uplink control channel in the multiple cells simultaneously if the uplink control channel can be transmitted in the multiple cells simultaneously and control transmission of the uplink control channel in accordance with transmission priorities corresponding to cell types if the uplink control channel cannot be transmitted in the multiple cells simultaneously..
Ntt Docomo, Inc.


 Systems and methods for carrier aggregation deployment and organization in unlicensed bands patent thumbnailSystems 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.


Identifying radio access technology (rat) coexistence conflicts using a priority-based mechanism

Methods, systems, and devices are described for wireless communication. A method may include maintaining a plurality of conflict entries, each conflict entry indicating a first frequency range associated with interference by a first radio access technology (rat) and a second frequency range associated with interference by a second rat.
Qualcomm Incorporated

Base station and processing method by base station

A base station including: a memory, and a processor coupled to the memory and configured to: wirelessly communicate with one or more terminals via a plurality of component carriers of carrier aggregation, and allocate each of the plurality of component carriers to each of the one or more terminals based on both of each number of terminals allocated to each component carrier and each wireless quality of each component carrier for each terminal.. .
Fujitsu Limited

Method for sending information regarding a secondary cell via a group message in a primary cell

A method in a network node for sending a message to a first group of wireless devices. The first group of wireless devices is served by a primary cell.
Telefonaktiebolaget Lm Ericsson (publ)

Measurement gaps in carrier aggregation

Methods, systems, and devices are described for wireless communication. A user equipment (ue) may signal a band-specific measurement gap indication based on the capability of a set of receivers to measure target frequency bands while monitoring a set of component carriers (ccs).
Qualcomm Incorporated

Configuration of network nodes

There is provided configuration of a secondary network node in a carrier aggregation enabled communications network the secondary network node supports radio transmission using a cellular radio access technology (rat) for deployment as a network node serving a secondary serving cell associated with a primary serving cell in a carrier aggregation enabled communications network using the cellular rat and a non-cellular rat for deployment as a network node serving a non-cellular rat hotspot using the non-cellular rat. After receiving an indication from a cellular primary network node associated with the primary serving cell the secondary network node starts scanning an unlicensed frequency band for deployment of the network node.
Telefonaktiebolaget Lm Ericsson (publ)

Configuration of cellular network nodes

There is provided configuration of a secondary cellular network node for a secondary serving cell associated with a primary serving cell in a carrier aggregation enabled communications network. The secondary cellular network node receives an indication from a primary cellular network node associated with the primary serving cell to start scanning an unlicensed frequency band for deployment of the secondary serving cell.
Telefonaktiebolaget Lm Ericsson (publ)

Base station, user apparatus, interference reduction control information notification method and interference reduction method

A base station configured to communicate with a user apparatus in a radio communication system executing carrier aggregation, including: a reception unit configured to receive, from an interference base station, control information that is used for the user apparatus to reduce an interference signal from the interference base station for a component carrier used by the user apparatus; a determination unit configured to determine whether a connecting cell corresponding to the component carrier and an interference cell formed by the interference base station satisfy a predetermined condition; and a transmission unit configured, when the determination unit determines that the connecting cell and the interference cell satisfy the predetermined condition, to transmit the control information to the user apparatus.. .
Ntt Docomo, Inc.

Resource management and computer storage medium

Disclosed are a resource management method and device and a computer storage medium. The method comprises: a node determining a resource management mode during carrier aggregation according to the type of a primary serving cell, and the node processing information according to the determined resource management mode..
Zte Corporation

User terminal, radio base station and radio communication method

The present invention is designed to implement dynamic tdd that does not rely on tdd-fdd ca-based tdd ul-dl configurations. A user terminal executes radio communication with a plurality of cells by employing carrier aggregation, and has a receiving section that, when a connection is established with a secondary cell serving as a dynamic tdd cell, receives control information, which is transmitted from a primary cell and which includes a dynamic command with respect to a subframe configuration of the dynamic tdd cell, and a control section that decides whether or not one or a plurality of subframes in the dynamic tdd cell are uplink subframes or downlink subframes based on the control information, and, furthermore, controls operations pertaining to the dynamic tdd cell..
Ntt Docomo, Inc.

Data transmission method, device, and system

The present invention provides a data transmission method, device, and system, and relates to the communications field, which can improve data transmission efficiency. The method includes: determining, by a second base station, that statuses of all harq processes in a first hybrid automatic repeat request harq buffer are occupied states; and sending, by the second base station, a second data block to a user equipment ue by using an harq process in an idle state in a second harq buffer, where the first harq buffer and the second harq buffer are different harq buffers disposed in the second base station.
Huawei Technologies Co., Ltd.

Method for transmitting and receiving a signal, and apparatus therefor

A method and a user equipment (ue) for transmitting an uplink (ul) signal in a wireless communication system supporting carrier aggregation are discussed. The ue is configured with a plurality of cells.
Lg Electronics Inc.

Antenna switching system and method

The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit.
Huawei Device Co., Ltd.

Carrier aggregation

There is provided a method of implementing carrier aggregation on a first transceiver. The method comprises receiving and decoding, during a first subframe, channel quality information from user equipment and transferring, before the expiry of a second subframe immediately following the first subframe, the decoded channel quality information over a direct physical link to a second transceiver, for use in decoding further channel quality information from the user equipment..
Keysight Technologies Singapore (holdings) Pte. Lt

Mobile communications network, communications device and methods with nested carrier aggregation

A communications device can transmit and receive data via a wireless access interface provided by a mobile communications network including an infrastructure equipment for transmitting signals to or receiving signals from the communications device. The wireless access interface provides a primary carrier within a first frequency range, which forms a primary cell providing a contiguous set of communications resources across the first frequency range and providing one or more control channels for transmitting signaling message to the communications device or receiving signaling messages from the infrastructure equipment.
Sony Corporation

Performing multiple timing advance adjustments in a carrier aggregation communication system

Technology for performing multiple timing advances in a carrier aggregation communication system is disclosed. A method comprises communicating a random access preamble from a ue to an enodeb via a pcell associated with a selected component carrier of the carrier aggregation.
Intel Corporation

Broadcast information acquiring method, mobile device, and base station apparatus

In dual connectivity or inter-base station carrier aggregation, synchronization between base stations is achieved while preventing processing load from increasing in user equipment. A method of acquiring broadcast information when configuring or performing inter-base station carrier aggregation in a mobile communication system including a first base station, a second base station, and a mobile device connected to the first base station, includes the steps of, at the first base station, creating first broadcast information about the second base station, except for information as to synchronization between base stations and supplying the first broadcast information to the mobile device on a dedicated radio resource control signal; and at the mobile device, after receiving the dedicated radio resource control signal, receiving the information as to synchronization between base stations over a physical broadcast channel of a first cell of the second base station based upon the first broadcast information..
Ntt Docomo, Inc.

Physical uplink control channel management for pucch secondary cell in carrier aggregation

Methods, systems, and devices for wireless communication are described. A user equipment (ue) may be configured for carrier aggregation (ca) configuration with a primary cell (pcell) and a physical uplink control channel (pucch) enabled secondary cell (scell).
Qualcomm Incorporated

Method, base station and user equipment for radio communication in radio communication system

A method, base station, and user equipment (ue) for radio communication in a radio communication system including a base station and a ue, the ue communicating with the base station in carrier aggregation mode over plural component carriers. The method includes: the base station assigns a priority to each component carrier according to at least one of the following rules to enable the ue to select, on overlapped uplink subframes, the component carrier having highest priority for uplink signal transmission, the rules including: desired power loss of uplink signal transmission over the component carrier, burden of uplink signal transmission over the component carrier, number of uplink subframes of the component carrier, and primary/secondary attributes of the component carrier for transmission of a downlink signal corresponding to the uplink signal transmitted over the component carrier.
Sony Corporation

Method and device for response information transmission, terminal, base station and storage medium

Disclosed are a method and device for response information transmission, a terminal, a base station and a storage medium. The method for response information transmission includes: when a time division duplex serving cell and a frequency division duplex serving cell are performing carrier aggregation and are configured to employ a physical uplink control channel (pucch) format 1b with channel selection mode for transmission of hybrid automatic repeat request-acknowledgement (harq-ack) response information, determining harq-ack response information transmitted on an uplink subframe by a first serving cell and a second serving cell, and transmitting the determined harq-ack response information via a pucch or a physical uplink shared channel (pusch)..
Zte Corporation

Codebook subset restriction signaling for multi-carrier multi-antenna wireless communication system

A radio network node identifies a codebook subset restriction to be applied to a user equipment (ue) employing carrier aggregation and multiple-input-multiple-output (mimo), identifies a correspondence between the codebook subset restriction and multiple carriers in a carrier group of the ue, and transmits correspondence information indicating the correspondence between the codebook subset restriction and the multiple carriers in the carrier group. The ue receives the correspondence information and transmits channel state information for the multiple carriers according to the codebook subset restriction..
Telefonaktiebolaget L M Ericsson (publ)

Method and device for controlling access of terminal for efficient use of resources in mobile communication system

Embodiments of the present disclosure provide terminal connection control method and apparatus in a base station of a mobile communication system which supports a carrier aggregation (ca) function. According an embodiment of the present disclosure, a method for control a connection of a terminal in a base station of a mobile communication system includes determining whether there is a primary cell (pcell) connection request from a terminal with respect to an i-th cell (herein, i is a positive integer greater than 0 and equal to or smaller than k) corresponding to one of k cells (herein, k is a positive integer greater than 0) in the base station; if there is the pcell connection request from the terminal, determining whether to allow the pcell connection for the i-th cell of the terminal based on a threshold load corresponding to a maximum limit of a resource allocated to each cell; and if the pcell connection for the i-th cell of the terminal is allowed, determining whether to release a secondary cell (scell) connection for at least one or more terminals which maintain the scell connection for the i-th cell by comparing an i-th resource load allocated to the i-th cell with the threshold load..
Samsung Electronics Co., Ltd.

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

A method is provided for receiving uplink control information (uci) in a wireless access system supporting a carrier aggregation. An evolved node-b (enb) transmits, to a user equipment (ue), two or more physical downlink shared channels (pdschs) via two or more downlink component carriers, respectively.
Lg Electronics Inc.

Method and device for transmitting an uplink control signal in a wireless communication system

A method is provided for transmitting an uplink (ul) control signal in a carrier aggregation (ca) system including a plurality of ul component carriers (ccs). A user equipment (ue) determines whether a simultaneous transmission of a physical ul control channel (pucch) and a physical ul shared channel (pusch) is configured.
Lg Electronics Inc.

Aggregation of data bearers for carrier aggregation

Multiple data bearers may be configured for a user equipment (ue) for carrier aggregation and may be split among multiple evolved nodebs (enbs). The enbs may be selected to serve the multiple data bearers for the ue based on various criteria such as channel conditions, loading, and the like.
Qualcomm Incorporated

Data split between multiple sites

Splitting data in a wireless communications network. Data may be split to use multiple base stations for transmission to user equipment in order to improve the bandwith if a ue is on a cell edge, or may be split by user equipment for transmission to multiple base stations in order to improve handover.
Interdigital Technology Corporation

Carrier aggregation of tdd and fdd subframes for uplink harq feedback

Method comprises determining a first harq timing wherein an association determines which ul subframes in the tdd carrier that are defined for transmitting harq on an ul control channel for an associated set of dl subframes in the fdd carrier, determining a second harq timing, wherein an association determines which ul subframes that are defined for transmitting harq on an ul shared channel for an associated set of dl subframes in the fdd carrier, resulting in a first set of ul subframes for which the physical ul shared channel is enabled to comprise harq, and a second set of ul subframes is not comprising harq, and assigning ul channel resources for the harq feedback on the physical ul shared channel in said first set of ul subframes, according to said second dl harq timing, when there is no ul control channel assigned according to said first dl harq timing.. .
Huawei Technologies Co., Ltd.

Multiband filter for non-contiguous channel aggregation

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

Transmission device and transmission method

In order to realize a power-saving power amplifier compatible with carrier aggregation technology using a plurality of bands, with a small size and low cost, while improving the amplitude accuracy and power efficiency, a transmission device of the present invention comprises: a modulation means that generates, from a baseband signal corresponding to each of the plurality of bands, a first and a second constant-envelope signals having different phases; a power amplification means that amplifies respective ones of the first and second constant-envelope signals generated by the modulation means; and a combining means that combines together the first and second constant-envelope signals amplified by the power amplification means and thereby generating an rf signal in which amplitude information contained in each of the baseband signals corresponding to respective ones of the plurality of bands is restored.. .
Nec Corporation

User terminal, base station and radio communication method

An uplink transmission is carried out adequately even when ca is executed by employing different duplex modes between multiple cells. A user terminal communicates with an fdd cell and a tdd cell that employ carrier aggregation, receives dl signals transmitted from each cell, detects the dl signals received, makes retransmission control decisions, and allocates and feeds back delivery acknowledgement signals in response to each dl signal in a predetermined ul subframe.
Ntt Docomo, Inc.

Methods for inter-system carrier aggregation in advanced wireless communication systems

There is provided a signalling method for use in an advanced wireless communication network (100) that supports a first duplex mode, a second duplex mode different to the first duplex mode, and carrier aggregation of the first second duplex modes. This method includes configuring a ue (104-106) for data communication with the network (100) through a first access node (101) as a pcell, on the first duplex mode and with a first transmission mode (tm) including one or more transport blocks (tbs).
Nec Corporation

Lte-u and lte carrier aggregation activation, deactivation, and accounting

carrier aggregation may be performed using licensed (e.g., lte) and unlicensed (e.g., lte-u) spectrum in which the amount of data associated with users may be separately tracked for the licensed and unlicensed communications. The tracking for the amount of licensed and unlicensed data may be performed at base stations associated with a wireless network.
Verizon Patent And Licensing Inc.

Method for configuring a backhaul link subframe in a wireless communication system to which a carrier aggregation scheme is applied and an the same

A method for configuring a backhaul link subframe in a wireless communication system to which a carrier aggregation scheme is applied and an apparatus for the same are disclosed. The method comprises determining one of a plurality of subframe configurations as a first subframe configuration for a primary component carrier allocated to the relay node; configuring subframe configuration candidates for one or more secondary component carriers allocated to the relay node on the basis of the determined first subframe configuration; determining a second subframe configuration for each of the one or more secondary component carriers by using the configured subframe configuration candidates; and transmitting and receiving a signal to and from the relay node in accordance with the first subframe configuration and the second subframe configuration..
Lg Electronics Inc.

Communication system to provide services using carrier aggregation

The present invention has an object to provide a communication system capable of appropriately providing services while improving a data rate using carrier aggregation. In step st1408, of a cell1 and a cell2 of a base station a, rrc connection is established between the cell1 and a ue, and the cell1 becomes a primary cell (pcell).
Mitsubishi Electric Corporation

Transmitter and method using carrier aggregation

Disclosed are a transmitter and method of combining multiple contiguous and non-contiguous frequency bands in a wireless communication system using carrier aggregation. The transmitter includes a first communication unit for converting a first baseband signal into a first rf signal of a first band, a second communication unit for converting a second baseband signal into a second rf signal of a second band, a combiner for outputting a third rf signal by combining the first rf signal and the second rf signal, and an amplifier for amplifying the third rf signal..
Samsung Electronics Co., Ltd.

Multi-carrier aggregation method and apparatus, user equipment, and network side device

A multi-carrier aggregation method and apparatus, user equipment, and a network side device are disclosed. The method includes: determining, by a network side device according to information about a transmission resource that is obtained when at least one component carrier is successfully obtained through contention, start and end times of a scheduling phase corresponding to the at least one component carrier, where the scheduling phase is divided by an uplink-downlink switch point into an uplink phase of the scheduling phase and a downlink phase of the scheduling phase, the uplink-downlink switch point is used to divide a time to obtain an uplink time of the component carrier and a downlink time of the component carrier, and uplink-downlink switch points of two or more component carriers are aligned in time; and performing, by the network side device, downlink transmission with user equipment in the downlink phase of the scheduling phase..
Huawei Technologies Co., Ltd.

Dynamic allocation of carrier aggregation resources based on device requests

Examples disclosed herein provide systems, methods, and software to dynamically provide carrier aggregation to wireless communication devices. In one example, a method of operating an enodeb includes exchanging first wireless communication signals with a wireless communication device using a first carrier aggregation configuration.
Sprint Communications Company L.p.

System and uplink control information transmission in carrier aggregation

A method for communicating uplink control information to a base station using a user equipment is presented. The method includes identifying component carriers on the user equipment scheduled for physical uplink shared channel (pusch) transmissions, and identifying at least one first ranking for each of the component carriers for transmission of uplink control information.
Blackberry Limited

Uplink power headroom reporting for carrier aggregation

A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group.
Interdigital Patent Holdings, Inc.

Method of distributing security key context, mobility management entity, and base station

A method of distributing a security key context, where the method includes receiving, by a mobility management entity, a first indication from a primary base station, where the first indication is used for requesting a path switch from the mobility management entity and indicating that the path switch is triggered by carrier aggregation between base stations, processing the path switch according to the first indication, and keeping, according to the first indication, the security key context for the path switch unchanged, and sending a second indication to the primary base station, to indicate the primary base station to keep the security key context unchanged, or sending a third indication to the primary base station, to indicate the primary base station to acquire a quantity of times of reversal of a next hop chaining counter in the security key context.. .
Huawei Technologies Co., Ltd.

Method for signaling control information, and apparatus therefor

A method is provided for transmitting and receiving at least one of control information and a response signal at a user equipment (ue) in a carrier aggregation based wireless communication system. A first cell group having a primary cell (pcell) is configured.
Lg Electronics Inc.

Method for generating a mac control element in a carrier aggregation system and a device therefor

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for generating a mac ce in a carrier aggregation system, the method comprising: configuring a plurality of serving cells, wherein each of the plurality of serving cells respectively corresponds to a cell index; determining whether a medium access control (mac) control element (ce) includes four octets for a cell index field depending on a highest cell index among the cell indexes of the plurality of serving cells; and generating the mac ce according to the determining..
Lg Electronics Inc.

Method and system for harq operation and scheduling in joint tdd and fdd carrier aggregation

A method at a user equipment for hybrid automatic repeat request (harq) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using harq timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using harq timing of the second duplex mode; and using harq timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using harq timing of the first duplex mode.. .
Blackberry Limited



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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