KR20150031663A - Terminal and method for controlling activation of carrier aggregation - Google Patents

Abstract

According to the present invention, a terminal for controlling carrier aggregation operation includes: a communications part for receiving a carrier aggregation (CA) event through a wireless communications network; and a control part for checking the operating state of the terminal, and determining whether to initiate CA operation of the terminal in accordance with the CA event based on the operating state of the terminal. Accordingly, the present invention can actively control CA operation of the terminal, thereby preventing unnecessary power consumption.

Description

TECHNICAL FIELD [0001] The present invention relates to a terminal and a method for controlling a carrier aggregation operation,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a terminal and method for controlling a carrier aggregation operation, and more particularly, to a terminal and a method for controlling a carrier aggregation function in accordance with an operation state of a terminal in a wireless communication system using carrier aggregation .

2. Description of the Related Art In recent mobile communication systems, a single carrier-frequency division multiple access (OFDMA) scheme or a similar scheme is used as a scheme for high-speed data transmission in a wireless channel, Frequency Division Multiple Access (hereinafter referred to as SC-FDMA) schemes have been actively studied. In the above multiple access scheme, the data or control information of each user is classified and operated so that the time and frequency resources for transmitting data or control information for each user do not overlap each other, that is, orthogonality is established. do.

One of the important things to provide high-speed wireless data service in a cellular wireless communication system is the support of scalable bandwidth. For example, LTE (Long Term Evolution) systems can have various bandwidths such as 20/15/10/5/3 / 1.4 MHz. Service providers can provide services by selecting among the above-mentioned bandwidths, and terminals can support a bandwidth of at most 20 MHz, and there can be various types such as supporting only a bandwidth of at least 1.4 MHz.

In LTE-Advanced (hereinafter referred to as "LTE-A") system aiming at providing a service of IMT-Advanced level, a carrier aggregation of LTE carriers (also referred to as carrier aggregation) It is possible to provide a broadband service up to the MHz bandwidth. The LTE-A system requires a wider bandwidth than the LTE system for high-speed data transmission. At the same time, compatibility with LTE terminals is also important, so LTE terminals should also be able to access LTE-Advanced systems and receive services.

To this end, the LTE-A system divides the entire system band into subbands or constituent carriers (CCs) of a bandwidth that can be transmitted or received by the LTE terminal, combines predetermined constituent carriers, Data can be generated and transmitted for each constituent carrier to support high-speed data transmission of the LTE-A system using the transmission / reception process of the existing LTE system.

Here, each constituent carrier wave corresponds to a cell. The base station can be configured so that the UE can operate in a plurality of cells. The cell is divided into a primary serving cell (Pcell) and a secondary serving cell (Scell). When a scell is added, Consumption increases.

The CA operation of the current terminal is manually controlled by the network. That is, if the terminal is a terminal supporting CA operation, and the network is also capable of CA operation, the network transmits a Scell Add command for the CA to the terminal, and the terminal is sculled according to the command transmitted from the network. In this case, since the network can not know the status of the terminal, it sends commands (Scell Add, Scell Activation) for the CA operation based on the network, and when the high data rate is not needed, There is a problem that additional current is consumed by driving.

Accordingly, it is an object of the present invention to provide a terminal that can prevent power consumption by controlling a carrier wave collecting operation according to an operation state of a terminal.

Another object of the present invention is to provide a method of controlling a carrier aggregation operation in the terminal.

According to another aspect of the present invention, there is provided a terminal capable of wireless communication, comprising: a communication unit for receiving a CA (Carrier Aggregation) event from a wireless communication network; And a controller for determining an operation state of the terminal and determining whether the CA operates according to the CA event based on the operation state of the terminal.

In an exemplary embodiment of the present invention, the control unit may include: a status determination unit that determines an operation status of the terminal based on a user event detected by the terminal; And a CA determining unit for determining whether to operate the CA according to the CA event based on the operation state of the terminal and generating a control signal.

In an embodiment of the present invention, the terminal may further include a processing unit for processing the CA event according to the determination of the control unit.

In an embodiment of the present invention, the control signal may be a CA enable signal or a CA disable signal.

In an embodiment of the present invention, the user event may include a display unit on / off signal, a tethering on / off signal, a charging on / off signal, a background application on / Signal.

In an embodiment of the present invention, when the user event is one of a display off signal, a tethering off signal, a charging off signal, and a background application off signal, (disable) signal.

In the embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) add command, the CA event processing unit adds the Scell addition command to the terminal It is possible to transmit a disable command signal of the Scell RF chip while transmitting the signal to the basic module.

In the embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) add command, the CA event processing unit adds the Scell addition command to the terminal It may not be transmitted to the base module.

In an embodiment of the present invention, the CA event processing unit may store or discard the Scell addition command.

In the embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) activation command, the CA event processing unit checks (ACK) signal to the wireless communication network.

In an embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) activation command, the CA event processing unit transmits a response I can not.

In the embodiment of the present invention, when the control signal is a CA disable signal, and the CA event is a Scell (secondary serving cell) activation command, the CA event processing unit issues a negative And may transmit an acknowledgment (NACK) signal to the wireless communication network.

In an embodiment of the present invention, when the control signal is a CA operation enable signal, the CA event processing unit can normally process the CA event to prepare and activate a Scell operation.

In an exemplary embodiment of the present invention, the terminal may further include a user event receiver for providing a user event detected by the terminal to the controller.

According to another aspect of the present invention for realizing the object of the present invention, there is provided a method of controlling a carrier aggregation operation in a terminal capable of wireless communication, comprising: receiving a Carrier Aggregation (CA) event from a wireless communication network; Determining an operation state of the terminal based on a user event detected by the terminal; And determining whether the CA operation is performed according to the CA event, based on the operation state of the terminal.

In the embodiment of the present invention, the determining whether or not the CA operation is performed may further include forming a control signal according to whether the CA operation is performed, and processing the CA event according to the control signal.

In an embodiment of the present invention, the control signal may be a CA enable signal or a CA disable signal.

In an embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) add command, the step of processing the CA event comprises: Transmitting an instruction to a base module of the terminal; And a disable command signal of a Scell RF chip.

In an embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Scell (secondary serving cell) add command, the step of processing the CA event comprises: Command to the base module of the terminal.

In an embodiment of the present invention, the step of processing the CA event may further comprise storing or discarding the Scell addition command.

In an embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command, the step of processing the CA event comprises: And sending an acknowledgment (ACK) signal to the wireless communication network for the command.

In an embodiment of the present invention, when the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command, the step of processing the CA event comprises: You may not respond to commands.

In an embodiment of the present invention, if the control signal is a CA disable signal and the CA event is a secondary serving cell activation command, the step of processing the CA event comprises: The processing unit may include transmitting a negative acknowledgment (NACK) signal to the wireless communication network for the Scell activation command.

In an embodiment of the present invention, when the control signal is a CA operation enable signal, the step of processing the CA event may allow the CA event processing unit to normally process the CA event to prepare and activate a Scell operation .

According to the terminal and the method for controlling the carrier wave integration operation, the operation state of the terminal is analyzed to prevent the carrier wave integration operation from being driven when a high speed is not required in the terminal, thereby preventing additional current consumption according to the scell, It is necessary to drive the carrier aggregation operation to transmit data at a high speed to actively control the carrier aggregation operation. Accordingly, it is possible for the user to use the terminal at a high data rate, at the same time, to prevent the current consumption of the terminal, thereby improving the efficiency of the terminal power use.

1 is a block diagram of a CA control module of a terminal according to an embodiment of the present invention.
FIGS. 2A and 2B are examples of a method of processing a Scell addition instruction in the processing unit of FIG.
3A to 3C are examples of a method of processing a Scell activation command in the processing unit of FIG.
4 is a flowchart of a method of controlling a carrier aggregation operation according to an embodiment of the present invention.

Hereinafter, preferred embodiments of a terminal and a method for controlling a carrier aggregation operation will be described in more detail with reference to the drawings.

1 is a block diagram of a CA control module of a terminal according to an embodiment of the present invention.

1, a CA (Carrier Aggregation) control module 300 of a terminal 1 according to the present invention receives a CA event from a wireless communication network 3, 1), and enables or disables the CA based on the current operation state of the CA.

Hereinafter, a wireless communication network will be described. A work performed in a wireless communication network may be performed in a process of controlling a network and transmitting data by a system (e.g., a base station) Work can be done on a terminal connected to the network.

Wireless communication systems are widely deployed to provide various communication services such as voice, packet data, and the like. The wireless communication system includes at least one base station (BS) (not shown) and a repeater (not shown). Each base station provides communication services for a specific cell. The cell may again be divided into multiple regions (referred to as sectors).

Generally, service providers support wireless service for a desired service area by installing a plurality of base stations. However, in some areas, there are areas where wireless service is not properly performed due to terrain conditions. This is called a shaded area, and a repeater can be used to remove the shaded area.

The terminal 1 may be fixed or mobile and may be connected to a network such as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), a user terminal (UT), a subscriber station (SS) device, a personal digital assistant (PDA), a wireless modem, a handheld device, and the like.

The terminal 1 is a device for supporting wireless communication and may be a smart phone, a mobile phone, a tablet computer, a notebook, a netbook, a PDA, a PMP, a PSP, an MP3 player, electronic devices with all communication functions such as desktop computers, smart TVs, printers, and fax machines as well as various types of mobile devices such as e-book readers, navigation devices, smart cameras, electronic dictionaries, . ≪ / RTI >

The terminal 1 can execute various application programs based on an operating system (OS). The operating system is a system program for allowing an application program to use hardware of a terminal, and is a system program for a mobile computer operating system such as Android OS, iOS, Windows Mobile OS, Sea OS, Symbian OS, Blackberry OS, , MAC, AIX, HP-UX, and so on.

The application program is a program developed to perform a specific task using a terminal device, and includes various multimedia contents such as a game, a moving image, and a photograph, as well as various applications and service objects, or an image viewer , A moving picture player, and the like.

The terminal 1 may display an application program through the display unit 10 or provide a user interface (UI) to the user. The display unit 10 may include a liquid crystal display (LCD) panel, a plasma display panel (PDP), an organic light-emitting diode (OLED) display panel, and the like.

In addition, a touch screen function may be included in the display unit 10 or may be provided as a separate touch pad device for processing user input. Alternatively, the terminal 1 may include an input unit (not shown) such as a keypad formed separately from the display unit 10 and receiving a user's input.

The base module 400 of the terminal 1 collectively refers to modules that perform the original functions of the terminal and includes a radio resource control (RRC) layer, a common medium access control (MAC) layer, Physical (PHY) layer, and the like.

The network 3 includes a base station, an evolved-NodeB, a base transceiver system (BTS), an access point (AP), a femto base station, a home node B, It can be called a term. A cell should be interpreted in a comprehensive sense to indicate a partial area covered by a base station, and is meant to encompass various coverage areas such as a megacell, a macrocell, a microcell, a picocell, and a femtocell.

There are no restrictions on multiple access schemes applied to wireless communication systems. (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier-FDMA , OFDM-CDMA, and the like. A TDD (Time Division Duplex) scheme in which uplink and downlink transmissions are transmitted using different time periods, or an FDD (Frequency Division Duplex) scheme in which they are transmitted using different frequencies can be used.

Carrier aggregation (CA) supports multiple carriers and is sometimes referred to as spectrum aggregation or bandwidth aggregation. The individual unit carriers tied by carrier aggregation are called component carriers (CCs). Each element carrier is defined as the bandwidth and center frequency. Carrier aggregation is introduced to support increased throughput, prevent cost increases due to the introduction of wideband radio frequency (RF) devices, and ensure compatibility with existing systems. For example, if five elementary carriers are allocated as the granularity of a carrier unit having a bandwidth of 20 MHz, it can support a bandwidth of up to 100 MHz.

Carrier aggregation can be divided into contiguous carrier aggregation between successive element carriers in the frequency domain and non-contiguous carrier aggregation between discontinuous element carriers. The number of carriers aggregated between the downlink and the uplink may be set differently. The case where the number of downlink element carriers is equal to the number of uplink element carriers is referred to as symmetric aggregation and the case where the number of downlink element carriers is different is referred to as asymmetric aggregation.

The size (i.e. bandwidth) of the element carriers may be different. For example, if five element carriers are used for a 70 MHz band configuration, then a 5 MHz element carrier (carrier # 0) + 20 MHz element carrier (carrier # 1) + 20 MHz carrier (carrier # 2) + 20 MHz element carrier (carrier # 3) + 5 MHz element carrier (carrier # 4).

A multiple component carrier system refers to a system that supports carrier aggregation. In a multi-element carrier system, adjacent carrier aggregation and / or non-adjacent carrier aggregation may be used, and either symmetric aggregation or asymmetric aggregation may be used.

In a wireless communication (for example, LTE-Advanced), when a CA is configured, a cell (CA) can be classified into two types: a primary serving cell (hereinafter referred to as a Pcell) and a secondary serving cell Scell "). In the case of Pcell, it belongs to the Primary Component Carrier (PCC), and it can be used for RRC (Radio Resource Control) connection establishment / re-establishment, measurement, mobility procedure, random access procedure and selection, system information acquisition, initial random access, Stratum (NAS) function is provided. Pcell can not be disabled because it performs system information monitoring and only one RRC can be connected.

Scell can be added up to 4 total, and acquisition is done through dedicated signaling with RRC Connection Reconfiguration message message only when additional radio resource is needed. In this message, the physical cell ID for each cell is transmitted and includes the DL Carrier Frequency Absolute Radio Frequency Channel (ARFCN).

The CA control module 300 includes a communication unit 310 for receiving a CA (Carrier Aggregation) event from a wireless communication network and a control unit 310 for determining the operation state of the terminal 1, And a controller 350 for determining whether or not the CA of the terminal is operated according to the operation of the terminal. The CA control module 300 may further include a processing unit 370 for processing the CA event according to a determination of the control unit 350 and a control unit 350 for providing a user event detected by the terminal 1 to the control unit 350 And may further include a user event receiving unit 330. The CA control module 300 may be a modem inside the terminal 1.

The communication unit 310 receives the CA event from the network 3 and transmits the CA event to the control unit 350. The CA event may be a scell add command and a scell activation command transmitted by the network 3 when additional radio resource provision is required.

Conventionally, when a scell addition command is received from a network, the terminal prepares for operation of a scell, and if a scell activation command is received, the terminal activates a scell to support wireless communication. However, in this case, even when a high data rate is not required, such as when the user does not use the terminal, the power for driving the scell is consumed.

However, according to the present invention, even if the Scell addition command is received, the terminal 1 does not prepare the operation of the Scell immediately, but determines whether to operate the Scell according to the state of the terminal 1. [

The user event receiving unit 330 receives the user event detected by the terminal 1 and transmits the received user event to the controller 350. [ The user event may be received whenever a user event occurs or changed, and may be received whenever the CA event is received. In addition, the user event may be periodically received at predetermined time intervals.

The user event receiving unit 330 may receive the user event from the user event detection module 200. The user event detection module 200 may be an AP (Application Processor) in the terminal 1. [ The user event detection module 200 may be formed as a separate module from the CA control module 300 or may be integrally formed.

The user event detection module 200 includes a user event detection unit 210, a user event analysis unit 230, and a user event transmission unit 250.

The user event detector 210 detects a user event generated or changed in the terminal 1 and delivers the detected user event to the user event analyzer 230. For example, the user event may include a display unit on / off signal, a tethering on / off signal, a charging on / off signal, and a background application on / Lt; / RTI >

It may also be a signal as to whether the foreground application is using network resources. However, these are merely examples, and may include all user events occurring in the terminal 1, and may include user events input by the user.

The user event analyzer 230 analyzes whether the received user event is valid or duplicated, and determines whether to transmit the analyzed user event to the CA control module 300. When the user event analyzer 230 determines to deliver the user event to the CA control module 300, the user event transmitter 250 transmits the user event to the CA control module 300, And transmits it to the event reception unit 330.

The control unit 350 determines the operation state of the terminal 1 based on the CA event received from the communication unit 310 and the user event received from the user event receiving unit 330, And determines whether or not the CA operates. For example, even if the CA event is the Scell addition command and the Scell activation command, it can be determined that the Scell operation is not required by the user event.

The control unit 350 may include a state determination unit for determining an operation state of the terminal based on a user event detected by the terminal 1 and a state determination unit for determining a state of the terminal according to the CA event, And a CA determination unit for determining whether or not the CA of the mobile terminal 1 operates, and generating a control signal.

The control unit 350 may form a control signal according to the determination of the CA operation. For example, if it is determined that a Scell operation is required, a CA enable signal may be generated and a CA disable signal may be generated if it is determined that Scell operation is not required. The control unit 350 outputs the generated control signal to the processing unit 370.

In one embodiment of the present invention, when the user event is one of a display off signal, a daring off signal, a charge off signal, and a background application off signal, the control signal may be a CA disable signal. Also, even if the foreground application does not write network resources, the control signal may be a CA disable signal. If the display unit 10 of the terminal 1 is turned off, the application does not operate, or the operation does not require the network resource, the user does not use the data, and thus the high data rate is not required. This is because the terminal 1 can determine that the CA operation is unnecessary.

The processing unit 370 processes the CA event according to the control signal provided by the controller 350. [

If the control unit 350 determines that the CA operation is necessary, the processing unit 370 normally processes the CA event. That is, when the CA operation enable signal is input to the processor 370, the CA event is transmitted to the base module 400 of the terminal 1, and the base module 400 receives the CA event The Scell is configured to operate, and the Scell is activated according to the Scell enable command. In this case, the terminal 1 has a wide bandwidth due to the CA operation and can provide a fast data rate to the user.

On the other hand, if the control unit 350 determines that the CA operation is unnecessary, the processing unit 370 does not normally process the CA event, thereby disabling the scell. Therefore, unnecessary power waste can be reduced by blocking the CA operation when additional radio resources are not needed.

Examples of a method of processing a scell addition command and a scell activation command when the CA disable signal is input to the processing unit 370 will be described with reference to FIGS. 2 and 3. FIG.

FIGS. 2A and 2B are examples of a method of processing a Scell addition instruction in the processing unit of FIG.

Referring to FIG. 2A, the processing unit 370 transmits the Scell addition command to the base module 400 of the terminal 1 as an example of processing when the CA event is a Scell addition command. At this time, the processing unit 370 transmits a disable command signal of the Scell RF chip together. In this case, the basic module 400 processes the Scell addition command, but does not use RF resources required for scell driving. Therefore, since RF for Scell, which is the main cause of additional current consumption, is not used, power consumption is not increased.

Referring to FIG. 2B, the processing unit 370 does not transmit the Scell addition command to the base module 400 of the terminal 1, when the CA event is a Scell addition command. At this time, the processing unit 370 may discard the scell addition command or store the scell addition command in the storage unit of the processing unit 370. In this case, since the base module 400 has no information on the scell, the RF resource and the additional process are not required. Therefore, the terminal 1 remains in the same state as the terminal that does not support the CA function, and no additional current is consumed.

3A to 3C are examples of a method of processing a Scell activation command in the processing unit of FIG.

Referring to FIG. 3A, the processing unit 370 transmits an acknowledgment (ACK) signal to the network 3 for the Scell activation command, as an example of processing when the CA event is a Scell activation command. In this case, since the Scell operation is not prepared for the Scell addition command, resources for Scell can not be allocated. Therefore, the terminal 1 operates as if it exists in a shadow area.

Referring to FIG. 3B, as another example of processing when the CA event is a Scell activation command, the processing unit 370 does not respond to the Scell activation command. In this case, since the process for activating the scell is not completed, the network 3 is not allocated resources for the scell.

Referring to FIG. 3C, the processing unit 370 transmits a negative acknowledgment (NACK) signal to the network 3 for the Scell activation command, as another example of processing when the CA event is a Scell activation command. In this case, the network 3 does not complete the process for activating the scell, and thus resources for the scell are not allocated.

The above-described method of processing a Scell addition command and a Scell activation command is merely illustrative examples, and can be variously modified as needed in consideration of network suitability, current efficiency, user usability, and the like.

According to the terminal 1 that controls the carrier wave integration operation according to the present invention, CA operation is actively controlled by processing CA events differently according to user events. Accordingly, when the terminal does not need a high speed, the CA operation is not driven, thereby preventing the additional current consumption according to the scell, thereby improving the efficiency of power use without any problem in using the terminal.

4 is a flowchart of a method of controlling a carrier aggregation operation according to an embodiment of the present invention.

The method of controlling the carrier aggregation operation according to the present embodiment can be carried out in substantially the same configuration as the terminal 1 and the wireless communication network 3 in Fig. Therefore, the same components as those of the terminal 1 and the wireless communication network 3 in Fig. 1 are denoted by the same reference numerals, and repeated description will be omitted.

Referring to FIG. 4, when a data call is connected to the network 3, the terminal 1 is in an LTE-connected state but is not ready for operation of a Scell (step S000). In this state, only the Pcell is in operation, and the terminal 1 is in the same state as the terminal not supporting the CA function. The terminal 1 must receive a Scell add command and a Scell activation command from the network 3 in order to perform the CA operation.

Then, the terminal 1 receives a Scell addition command from the network 3 (step S100). In this case, the terminal 1 does not prepare the operation of the Scell immediately, but determines whether to operate the Scell according to the state of the terminal 1. [

To this end, the terminal 1 receives a detected user event in the terminal (step S300). The user event may be received whenever a user event occurs or changed, and may be received whenever the CA event is received. In addition, the user event may be periodically received at predetermined time intervals.

The terminal 1 determines the operation state of the terminal 1 based on the received CA event and the user event and determines whether the CA of the terminal 1 is operated based on the determined operation state of the terminal 1 in operation S500. The terminal 1 may form a control signal according to whether the CA is operated or not. For example, if it is determined that a Scell operation is required, a CA enable signal may be generated and a CA disable signal may be generated if it is determined that Scell operation is not required.

If it is determined that the CA operation is necessary, the CA event is processed normally. That is, when the CA operation enable signal is generated, the operation of the Scell is prepared according to the Scell addition command (step S720). In this case, the scell has not yet been activated.

Then, the terminal 1 receives a scell activation command from the network 3 (step S740). Also, since the CA event is normally processed, the Scell is activated according to the Scell activation command (step S760), and the CA operation is started. In this case, the terminal 1 has a wide bandwidth due to the CA operation and provides a fast data rate to the user.

If it is determined that the CA operation is unnecessary, the Scell is disabled by not processing the CA event normally. Therefore, unnecessary CA operation is blocked when additional radio resources are not needed, so that power waste can be reduced.

When the CA disable signal is generated, the Scell addition command is not followed and the operation of the Scell is not prepared (step S710). An example of how to handle this Scell addition command is described in Figures 2A and 2B.

Then, the terminal 1 receives a scell activation command from the network 3 (step S730). Also, since the CA event is not normally processed, the operation of the Scell is not prepared (step S750). An example of how to handle this Scell addition command is described in Figures 2A and 2B.

As described above, according to the method of controlling the carrier aggregation operation according to the present invention, it is possible to actively control the CA operation to prevent additional current consumption according to the scell when the CA operation is unnecessary.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

1: Terminal 10: Display
3: wireless communication network 300: CA control module
310: communication unit 330: user event receiving unit
350: control unit 370:
200: User event detection module 210: User event detection module
230: User event analysis unit 250: User event transmission unit
400: Basic module

Claims (24)

1. A terminal capable of wireless communication,
A communication unit for receiving a CA (Carrier Aggregation) event from a wireless communication network; And
And a controller for determining an operation state of the terminal and determining whether the CA operates according to the CA event based on the operation state of the terminal.
The apparatus of claim 1,
A state determiner for determining an operation state of the terminal based on a user event detected by the terminal; And
And a CA determining unit for determining whether to operate the CA according to the CA event based on an operation state of the terminal and generating a control signal.
The method according to claim 1,
And a processing unit for processing the CA event according to the determination of the control unit.
3. The method of claim 2,
Wherein the control signal is a CA enable signal or a CA disable signal.
5. The method of claim 4,
The user event is one of a display unit on / off signal, a tethering on / off signal, a charging on / off signal, and a background application on / off signal. .
6. The method of claim 5,
When the user event is one of a display unit off signal, a tethering off signal, a charging off signal, and a background application off signal,
Wherein the control signal is a CA disable signal.
5. The method of claim 4,
If the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) add command,
Wherein the CA event processing unit transmits the Scell addition command to the base module of the terminal, and transmits a disable command signal of the Scell RF chip together with the scell addition command.
5. The method of claim 4,
If the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) add command,
Wherein the CA event processing unit does not transmit the Scell addition command to the base module of the terminal.
9. The method of claim 8,
And the CA event processing unit stores or discards the scell addition command.
5. The method of claim 4,
If the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
And the CA event processing unit transmits an acknowledgment (ACK) signal to the wireless communication network for the Scell activation command.
5. The method of claim 4,
If the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
And the CA event processing unit does not respond to the Scell activation command.
5. The method of claim 4,
If the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
And the CA event processing unit transmits a negative acknowledgment (NACK) signal to the wireless communication network for the scell activation command.
5. The method of claim 4,
When the control signal is a CA operation enable signal,
Wherein the CA event processing unit normally processes the CA event to prepare and activate a Scell operation.
The method according to claim 1,
Further comprising a user event receiver for providing a user event detected by the terminal to the controller.
A method of controlling a carrier aggregation operation in a terminal capable of wireless communication,
Receiving a Carrier Aggregation (CA) event from a wireless communication network;
Determining an operation state of the terminal based on a user event detected by the terminal; And
And determining whether a CA operation is performed according to the CA event, based on an operation state of the terminal.
16. The method of claim 15,
Wherein the step of determining whether the CA operation is performed comprises: forming a control signal according to whether the CA operation is performed;
And processing the CA event according to the control signal. ≪ Desc / Clms Page number 24 >
17. The method of claim 16,
Wherein the control signal is a CA enable signal or a CA non-operation disable signal.
18. The method of claim 17,
Wherein if the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) add command,
Transmitting the Scell addition command to the base module of the terminal; And
And transmitting a disable command signal of a Scell RF chip together with the received signal.
18. The method of claim 17,
Wherein if the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) add command,
And does not transmit the Scell addition command to the base module of the terminal.
20. The method of claim 19, wherein processing the CA event comprises:
Further comprising the step of storing or discarding the Scell addition command.
18. The method of claim 17,
Wherein if the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
And transmitting an acknowledgment (ACK) signal to the wireless communication network for the Scell activation command.
18. The method of claim 17,
Wherein if the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
And does not respond to the Scell activation command.
18. The method of claim 17,
Wherein if the control signal is a CA disable signal and the CA event is a Schel (secondary serving cell) activation command,
Wherein the CA event processing unit includes transmitting a negative acknowledgment (NACK) signal to the wireless communication network for the Scell activation command.
18. The method of claim 17,
Wherein if the control signal is a CA enable signal,
Wherein the CA event processing unit normally processes the CA event to prepare and activate a scell operation.

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