KR20210060069A - Electronic device for providing dual connectivy and method for operating thereof - Google Patents

Abstract

An electronic device according to an embodiment of the present invention includes at least one communication processor supporting a first network communication and a second network communication, wherein the at least one communication processor is configured to: on the basis of the first network communication, receive an RRC connection reconfiguration message including an additional configuration of a secondary cell group (SCG) corresponding to the second network communication; identify that a DFT-S-OFDM scheme specified by the RRC connection reconfiguration message is not supported by the electronic device; and on the basis that the DFT-S-OFDM scheme is not supported, perform a preset operation to skip addition of the SCG corresponding to the second network communication. The present invention can reduce unnecessary resource waste.

Description

Electronic device supporting dual connectivity and its operation method {ELECTRONIC DEVICE FOR PROVIDING DUAL CONNECTIVY AND METHOD FOR OPERATING THEREOF}

An embodiment of the present disclosure relates to an electronic device supporting dual connectivity and a method of operating the same.

With the recent development of mobile communication technology, as the use of portable terminals having various functions has become common, efforts to develop a 5G communication system have been made to meet the increasing demand for wireless data traffic. In addition to the high frequency band used in 3G and LTE, the 5G communication system is also being considered for implementation in the ultra high frequency band in order to achieve a high data rate and to provide a faster data transmission rate.

As a method of implementing 5G communication, a stand alone (SA) method and a non-stand alone (NSA) method are being considered. Among them, the NSA scheme may include an EN-DC (LTE NR-Dual Connectivity) scheme using a new radio (NR) system together with an existing LTE system. In the NSA scheme, the user terminal can use not only the eNB of the LTE system, but also the gNB of the NR system. A technology that enables a user terminal to enable heterogeneous communication systems may be referred to as dual connectivity.

Dual connectivity was initially proposed by 3GPP (3rd generation partnership project) release-12, and at the time of the initial proposal, dual connectivity using a 3.5 GHz frequency band as a small cell in addition to the LTE system was proposed. It is under discussion that the 5G EN-DC scheme is implemented in a manner that uses the dual connectivity proposed by 3GPP release-12, LTE network communication as a master node, and NR network communication as a secondary node.

A user equipment (UE) may receive a message (eg, an RRC connection reconfiguration message) from the master node to report at least one parameter corresponding to a neighbor cell. The user equipment may measure at least one parameter of a signal from a base station of a neighboring cell and report it to the master node. The master node may determine to add a specific base station as a secondary node (SN), and may command the user equipment to add a secondary cell group (SCG). The user device may transmit and receive data to and from the network based on two network communications.

In 3GPP 5G NR, cyclic prefix based orthogonal frequency division multiplex (CP-OFDM) can be used for up-link (UL) and down-link (DL) data transmission. A user equipment (UE) based on 5G NR must be able to transmit up-link (UL) data using CP-OFDM. Meanwhile, the DFT-S-OFDM (discrete fourier transform spread OFDM) scheme is also an effective data transmission scheme in the uplink. OFDM) should be used to transmit up-link (UL) data.

In 3GPP 5G NR, the network may select one of CP-OFDM or DFT-S-OFDM as the UL data transmission method of the user equipment. However, depending on the capability of the user device, only CP-OFDM may be supported and DFT-S-OFDM may not be supported. In this case, when DFT-S-OFDM is selected in the network, the user equipment declares radio link failure (RLF), and accordingly, even LTE network communication may be released. In addition, since the network cannot check whether the user device supports DFT-S-OFDM, the RLF declaration may be repeated.

In one embodiment, when a user device that does not support DFT-S-OFDM receives an SCG (secondary cell group) addition command in which a DFT-S-OFDM related parameter is activated from the network, the RLF is not declared. An electronic device capable of maintaining network communication corresponding to a master cell group (MCG) by reporting a SCG failure and an operation method thereof may be provided. In addition, an embodiment may provide an electronic device capable of performing an operation set to prevent a network communication connection corresponding to the SCG and an operation method thereof after reporting an SCG failure.

In one embodiment, when a user device that does not support DFT-S-OFDM performs a camping operation on a cell related to a master cell group (MCG) in which a parameter related to DFT-S-OFDM is activated from the network, the RLF is not declared. It is possible to provide an electronic device capable of notifying a cell related to a master cell group (MCG) that it does not support DFT-S-OFDM and a method of operating the same.

An electronic device according to an embodiment includes at least one communication processor supporting a first network communication and a second network communication, and the at least one communication processor includes the second communication processor based on the first network communication. Receiving an RRC connection reconfiguration message including additional SCG (secondary cell group) configuration information corresponding to network communication, confirming that the network supports the DFT-S-OFDM scheme based on the RRC connection reconfiguration message, and the electronic device Based on the DFT-S-OFDM not supported, it may be set to perform a preset operation to skip the addition of the SCG corresponding to the second network communication.

According to an embodiment, a method of operating an electronic device supporting first network communication and second network communication includes additional configuration of a secondary cell group (SCG) corresponding to the second network communication based on the first network communication. Receiving the included RRC connection reconfiguration message, confirming that the network supports the DFT-S-OFDM scheme based on the RRC connection reconfiguration message, and based on the electronic device not supporting the DFT-S-OFDM Thus, it may include an operation of performing a preset operation to skip the addition of the SCG corresponding to the second network communication.

According to an embodiment, an electronic device capable of maintaining network communication corresponding to MCG by reporting an SCG failure without declaring an RLF when receiving an SCG addition command including a parameter related to DFT-S-OFDM activation from the network And a method of operation thereof may be provided. Accordingly, in an electronic device that does not support DFT-S-OFDM, network communication corresponding to the MCG is maintained without being released, and stability of a network communication connection may be increased. In addition, according to an embodiment, an electronic device capable of performing an operation set to prevent a network communication connection corresponding to an MCG after reporting an SCG failure, and an operation method thereof may be provided. Accordingly, an SCG addition command including a parameter related to DFT-S-OFDM activation is re-received by the user device, and thus unnecessary resource waste (eg, power waste and/or computational resource waste) may be reduced.

1 is a block diagram of an electronic device in a network environment, according to example embodiments.
2A is a block diagram of an electronic device for supporting network communication and 5G network communication, according to exemplary embodiments.
2B is a block diagram of an electronic device for supporting network communication and 5G network communication, according to exemplary embodiments.
3 is a diagram illustrating wireless communication systems providing a network of legacy communication and/or 5G communication according to one embodiment.
4 is a diagram illustrating a bearer in a UE according to an embodiment.
5 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.
6 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to a comparative example.
7 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
8 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
9 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.
10 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
11 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.
12 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
13A and 13B are flowcharts illustrating a method of operating an electronic device according to an exemplary embodiment.
14 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
15 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
16 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
17 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
18 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.
19 is a flowchart illustrating a method of operating a network according to an embodiment.

1 is a block diagram of an electronic device 101 in a network environment 100 according to exemplary embodiments. Referring to FIG. 1, in a network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (for example, a short-range wireless communication network), or a second network 199 It is possible to communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, and a sensor module ( 176, interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ) Can be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, a program 140) to implement at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and can perform various data processing or operations. According to an embodiment, as at least a part of data processing or operation, the processor 120 may transfer commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132. It is loaded into, processes commands or data stored in the volatile memory 132, and the result data may be stored in the nonvolatile memory 134. According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can be operated independently or together. , A sensor hub processor, or a communication processor). Additionally or alternatively, the coprocessor 123 may be set to use lower power than the main processor 121 or to be specialized for a designated function. The secondary processor 123 may be implemented separately from the main processor 121 or as a part thereof.

The co-processor 123 is, for example, in place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ) While in the state, together with the main processor 121, at least one of the components of the electronic device 101 (for example, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the functions or states associated with it. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as a part of other functionally related components (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

The program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.

The input device 150 may receive a command or data to be used for a component of the electronic device 101 (eg, the processor 120) from outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output an sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of the speaker.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display device 160 may include a touch circuitry set to sense a touch, or a sensor circuit (eg, a pressure sensor) set to measure the strength of a force generated by the touch. have.

The audio module 170 may convert sound into an electrical signal, or conversely, may convert an electrical signal into sound. According to an embodiment, the audio module 170 acquires sound through the input device 150, the sound output device 155, or an external electronic device (eg: Sound can be output through the electronic device 102) (for example, a speaker or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101, or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state. can do. According to an embodiment, the sensor module 176 is, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used for the electronic device 101 to connect directly or wirelessly with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that a user can perceive through tactile or motor sensations. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture a still image and a video. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101. According to an embodiment, the power management module 388 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 includes a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It is possible to support establishment and communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor) and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : A local area network (LAN) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 198 (for example, a short-range communication network such as Bluetooth, Wi-Fi direct or IrDA (infrared data association)) or a second network 199 (for example, a cellular network, the Internet. , Or a telecommunication network such as a computer network (for example, a LAN or WAN) to communicate with an external electronic device. These various types of communication modules may be integrated into a single component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses subscriber information stored in the subscriber identification module 196 (eg, International Mobile Subscriber Identifier (IMSI)) in a communication network such as the first network 198 or the second network 199. The electronic device 101 can be checked and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive from the outside. According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is, for example, provided by the communication module 190 from the plurality of antennas. Can be chosen. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as part of the antenna module 197.

At least some of the components are connected to each other through a communication method (e.g., a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI))) between peripheral devices and a signal ( E.g. commands or data) can be exchanged with each other.

According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the electronic devices 102 and 104 may be a device of the same or different type as the electronic device 101. According to an embodiment, all or part of the operations executed by the electronic device 101 may be executed by one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device 101 In addition or in addition, it is possible to request one or more external electronic devices to perform the function or at least part of the service. One or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101. The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2A is a block diagram 200 of an electronic device 101 for supporting network communication and 5G network communication, according to exemplary embodiments. Referring to FIG. 2A, the electronic device 101 includes a first communication processor 212, a second communication processor 214, a first radio frequency integrated circuit (RFIC) 222, a second RFIC 224, and a third RFIC 226, a fourth RFIC 228, a first radio frequency front end (RFFE) 232, a second RFFE 234, a first antenna module 242, a second antenna module 244, and an antenna (248) may be included. The electronic device 101 may further include a processor 120 and a memory 130. The network 199 may include a first network 292 and a second network 294. According to another embodiment, the electronic device 101 may further include at least one of the components illustrated in FIG. 1, and the network 199 may further include at least one other network. According to an embodiment, the first communication processor 212, the second communication processor 214, the first RFIC 222, the second RFIC 224, the fourth RFIC 228, the first RFFE 232, And the second RFFE 234 may form at least a part of the wireless communication module 192. According to another embodiment, the fourth RFIC 228 may be omitted or included as part of the third RFIC 226.

The first communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with the first network 292 and communication of a legacy network through the established communication channel. According to embodiments, the first network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network. The second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among the bands to be used for wireless communication with the second network 294, and communicates with the 5G network through the established communication channel. Can support. According to one embodiment, the second network 294 may be a 5G network defined by 3GPP. Additionally, according to an embodiment, the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second network 294. It is possible to establish a communication channel and support 5G network communication through the established communication channel.

The first communication processor 212 may transmit and receive data with the second communication processor 214. For example, data that has been classified as being transmitted through the second cellular network 294 may be changed to be transmitted through the first cellular network 292. In this case, the first communication processor 212 may receive transmission data from the second communication processor 214.

For example, the first communication processor 212 may transmit and receive data through the second communication processor 214 and the interprocessor interface 213. The interprocessor interface 213 may be implemented as, for example, a universal asynchronous receiver/transmitter (UART) (eg, high speed-UART (HS-UART) or a peripheral component interconnect bus express (PCIe) interface) Alternatively, the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using, for example, a shared memory. The communication processor 212 may transmit and receive various information such as sensing information, information on output strength, and resource block (RB) allocation information with the second communication processor 214.

Depending on the implementation, the first communication processor 212 may not be directly connected to the second communication processor 214. In this case, the first communication processor 212 may transmit and receive data through the second communication processor 214 and the processor 120 (eg, an application processor). For example, the first communication processor 212 and the second communication processor 214 may transmit and receive data through the processor 120 (eg, an application processor) and an HS-UART interface or a PCIe interface. There is no limit to the type. Alternatively, the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using the processor 120 (eg, an application processor) and a shared memory. .

According to an embodiment, the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or a single package. According to one embodiment, the first communication processor 212 or the second communication processor 214 may be formed in a single chip or a single package with the processor 120, the coprocessor 123, or the communication module 190. have. For example, as shown in FIG. 2B, the unified communication processor 260 may support both functions for communication with a first cellular network and a second cellular network.

The first RFIC 222 transmits a baseband signal generated by the first communication processor 212 from about 700 MHz to about 3 GHz used for the first network 292 (eg, a legacy network). Can be converted to a radio frequency (RF) signal. Upon reception, an RF signal is obtained from the first network 292 (eg, a legacy network) through an antenna (eg, the first antenna module 242), and through an RFFE (eg, the first RFFE 232). It can be preprocessed. The first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212.

The second RFIC 224 transmits a baseband signal generated by the first communication processor 212 or the second communication processor 214 to be used in the second network 294 (for example, a 5G network). It can be converted into an RF signal (hereinafter, referred to as 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less). Upon reception, a 5G Sub6 RF signal is obtained from the second network 294 (eg, 5G network) through an antenna (eg, the second antenna module 244), and RFFE (eg, the second RFFE 234). It can be pretreated through. The second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 212 or the second communication processor 214.

The third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the RF of 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second network 294 (eg, 5G network) It can be converted into a signal (hereinafter, 5G Above6 RF signal). Upon reception, the 5G Above6 RF signal may be obtained from the second network 294 (eg, 5G network) through an antenna (eg, antenna 248) and preprocessed through the third RFFE 236. The third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214. According to one embodiment, the third RFFE 236 may be formed as part of the third RFIC 226.

According to an embodiment, the electronic device 101 may include a fourth RFIC 228 separately or at least as a part of the third RFIC 226. In this case, the fourth RFIC 228 converts the baseband signal generated by the second communication processor 214 into an RF signal (hereinafter, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transferred to the third RFIC 226. The third RFIC 226 may convert the IF signal into a 5G Above6 RF signal. Upon reception, the 5G Above6 RF signal may be received from the second network 294 (eg, 5G network) through an antenna (eg, antenna 248) and converted into an IF signal by the third RFIC 226. . The fourth RFIC 228 may convert the IF signal into a baseband signal so that the second communication processor 214 can process it.

According to an example, the first RFIC 222 and the second RFIC 224 may be implemented as a single chip or at least part of a single package. According to an embodiment, the first RFFE 232 and the second RFFE 234 may be implemented as a single chip or at least part of a single package. According to an example, at least one of the first antenna module 242 and the second antenna module 244 may be omitted or combined with another antenna module to process RF signals of a plurality of corresponding bands.

According to an embodiment, the third RFIC 226 and the antenna 248 may be disposed on the same substrate to form the third antenna module 246. For example, the wireless communication module 192 or the processor 120 may be disposed on a first substrate (eg, a main PCB). In this case, the third RFIC 226 is located in a partial area (eg, lower surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is disposed in another area (eg, upper surface) Is disposed, a third antenna module 246 may be formed. By arranging the third RFIC 226 and the antenna 248 on the same substrate, it is possible to reduce the length of the transmission line therebetween. This, for example, can reduce the loss (eg, attenuation) of a signal in a high frequency band (eg, about 6 GHz to about 60 GHz) used for 5G network communication by a transmission line. Accordingly, the electronic device 101 may improve the quality or speed of communication with the second network 294 (for example, a 5G network).

According to an example, the antenna 248 may be formed as an antenna array including a plurality of antenna elements that can be used for beamforming. In this case, the third RFIC 226 may include, for example, a plurality of phase shifters 238 corresponding to a plurality of antenna elements as part of the third RFFE 236. During transmission, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, the base station of the 5G network) through a corresponding antenna element . Upon reception, each of the plurality of phase converters 238 may convert the phase of the 5G Above6 RF signal received from the outside into the same or substantially the same phase through a corresponding antenna element. This enables transmission or reception through beamforming between the electronic device 101 and the outside.

The second network 294 (e.g., 5G network) can be operated independently from the first network 292 (e.g., a legacy network) (e.g., Stand-Alone (SA)), or can be connected and operated (e.g.: Non-Stand Alone (NSA)). For example, a 5G network may have only an access network (eg, 5G radio access network (RAN) or next generation RAN (NG RAN)) and no core network (eg, next generation core (NGC)). In this case, after accessing the access network of the 5G network, the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network. Protocol information (e.g., LTE protocol information) for communication with a legacy network or protocol information (e.g., New Radio (NR) protocol information) for communication with a 5G network is stored in the memory 230, and other components (e.g., processor information) 120, the first communication processor 212, or the second communication processor 214.

3 is a diagram illustrating wireless communication systems providing a network of legacy communication and/or 5G communication according to one embodiment. Referring to FIG. 3, the network environment 300a may include at least one of a legacy network and a 5G network. The legacy network includes, for example, a 4G or LTE base station 340 (e.g., eNB (eNodeB)) of a 3GPP standard supporting wireless access with the electronic device 101 and an evolved packet (EPC) for managing 4G communication core). The 5G network includes, for example, a New Radio (NR) base station supporting wireless access with the electronic device 101 (eg, gNB (gNodeB)) and a 5GC that manages 5G communication of the electronic device 101 ( 5th generation core) may be included.

According to an embodiment, the electronic device 101 may transmit and receive a control message and user data through legacy communication and/or 5G communication. The control message is, for example, a message related to at least one of security control, bearer setup, authentication, registration, or mobility management of the electronic device 101 It may include. User data may refer to user data excluding control messages transmitted and received between the electronic device 101 and the core network 330 (eg, EPC), for example.

2A and 2B, the processor 120 is shown as being separate from the first communication processor 212, the second communication processor 214, or the unified communication processor 260, but this is merely exemplary. In one embodiment, the electronic device 101 performs a function of the processor 120, a function for a first network communication of the first communication processor 212, and a function for a second network communication of the second communication processor 214. It may also include an integrated system on chip (SoC) that supports all of them. Those skilled in the art will understand that the operation of the processor 120, the first communication processor 212, or the second communication processor 214 in this document may be performed by an integrated SoC.

3, the electronic device 101 according to an embodiment uses at least a portion of a legacy network (eg, LTE base station, EPC) to at least part of a 5G network (eg, NR base station, 5GC) and At least one of a control message or user data can be transmitted and received.

According to an embodiment, the network environment 300a provides wireless communication dual connectivity (DC) to an LTE base station and an NR base station, and the electronic device 101 through the core network 230 of either EPC or 5GC. ) And a network environment that transmits and receives control messages.

According to an embodiment, in a DC environment, one of the LTE base stations and the NR base stations may operate as a master node (MN) 310 and the other may operate as a secondary node (SN) 320. The MN 310 may be connected to the core network 230 to transmit and receive control messages. The MN 310 and the SN 320 may be connected through a network interface to transmit and receive messages related to radio resource (eg, communication channel) management.

According to an embodiment, the MN 310 may be configured as an LTE base station 340, the SN 320 may be configured as an NR base station, and the core network 330 may be configured as an EPC. For example, a control message may be transmitted and received through an LTE base station and an EPC, and user data may be transmitted and received through at least one of an LTE base station or an NR base station.

According to an embodiment, the MN 310 may be configured with an NR base station, the SN 320 may be configured with an LTE base station, and the core network 330 may be configured with 5GC. For example, a control message may be transmitted and received through an NR base station and a 5GC, and user data may be transmitted and received through at least one of an LTE base station or an NR base station.

According to an embodiment, the electronic device 101 may be registered with at least one of EPC and 5GC to transmit and receive control messages.

According to an embodiment, the EPC or 5GC may manage communication of the electronic device 101 by interworking. For example, movement information of the electronic device 101 may be transmitted/received through an interface between the EPC and 5GC.

As described above, dual connectivity through an LTE base station and an NR base station may be referred to as E-UTRA new radio dual connectivity (EN-DC). Meanwhile, MR DC can be applied in various ways other than EN-DC. For example, the first network and the second network by MR DC are all related to LTE communication, and the second network may be a network corresponding to a small-cell of a specific frequency. For example, the first network and the second network by MR DC are all related to 5G, the first network corresponds to a frequency band of less than 6 GHz (e.g., below 6), and the second network is a frequency band of 6 GHz or higher (e.g. : Over 6). In addition to the above-described examples, it will be readily understood by those skilled in the art that if a network structure to which dual connectivity is applicable can be applied to an embodiment of the present disclosure.

4 is a diagram illustrating a bearer in a UE according to an embodiment.

Bearers available in a 5G non-standalone network environment (e.g., network environment 300a of FIG. 3) include a master cell group (MCG) bearer, a secondary cell group (SCG) bearer, and a split bearer. can do. In the user equipment (UE) 400, an E-UTRA/NR packet data convergence protocol (PDCP) entity 401 and NR PDCP entities 402 and 403 may be configured. In the UE 400, E-UTRA radio link control (RLC) entities 411 and 412 and NR RLC entities 413 and 414 may be configured. In the UE 400, an E-UTRA MAC entity 421 and an NR MAC entity 422 may be configured. The UE may represent a user device capable of performing communication with a base station, and may be used interchangeably with the electronic device 101 of FIG. 1. For example, in some embodiments, when the UE performs a specific operation, it may mean that at least one element included in the electronic device 101 performs a specific operation.

The MCG may correspond to, for example, the main node (MN) 310 of FIG. 3, and the SCG may correspond to, for example, the secondary node (SN) 320 of FIG. 3. When a node for performing communication is determined, the UE 400 may set various entities shown in FIG. 4 for communication with the determined node (eg, a base station). Entities 401, 402, 403 of the PDCP layer receive data (e.g., PDCP SDU corresponding to an IP packet), and converted data reflecting additional information (e.g., header information) (e.g., PDCP protocol data (PDU)) unit)) can be printed. The RLC layer entities 411, 412, 413, and 414 receive the converted data (eg, PDCP PDU) output from the PDCP layer entities 401, 402, 403, and receive additional information (eg, header information). ) Reflected data (eg, RLC PDU) can be output. The MAC layer entities 421 and 422 receive the converted data (eg, RLC PDU) output from the RLC layer entities 411, 412, 413, and 414, and receive additional information (eg, header information). The reflected converted data (eg, MAC PDU) may be output and transmitted to the physical layer (not shown).

The MCG bearer may be associated with a path (or data) through which data can be transmitted and received using only a resource or entity corresponding to the MN in dual connectivity (DC). The SCG bearer may be associated with a path (or data) capable of transmitting and receiving data using only a resource or entity corresponding to the SN in dual connectivity. The split bearer may be associated with a resource or entity corresponding to the MN and a path (or data) through which data can be transmitted and received using a resource or entity corresponding to the SN in dual connectivity. Accordingly, as shown in FIG. 4, the split bearer is, through the NR PDCD entity 402, the E-UTRA RLC entity 412 and the NR RLC entity 413, and the E-UTRA MAC entity 421 ) And NR MAC entity 422.

5 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.

According to an embodiment, the first network 501 (eg, a legacy network), in operation 511, includes a radio resource (RRC) including a configuration of measurement for at least one or more cells corresponding to the SCG. control) A connection reconfiguration message may be transmitted to the electronic device 101. The first network 501 may be, for example, at least one entity (eg, a base station) constituting an LTE communication network that is a legacy network, and there is no limitation as long as it is an entity for configuring an LTE communication network. The second network 502 is, for example, at least one entity (eg, a base station) constituting an NR network, and there is no limitation. Meanwhile, in another embodiment, the first network 501 is at least one entity constituting the NR network, and the second network 502 may be implemented as at least one entity constituting the legacy network.

The first communication processor 212 of the electronic device 101 may receive an RRC connection reconfiguration message including measurement settings for at least one or more cells corresponding to the SCG. For example, the electronic device 101 may receive an RRC connection reconfiguration message based on a first network communication with the first network 501. In FIG. 5, the first network communication may correspond to the control plane and the user plane, and the first network 501 may include an MN (eg, MN 310 in FIG. 3 ). The second network communication may correspond to the user plane, and the second network 502 may include an SN (eg, SN 320 in FIG. 3 ). Accordingly, based on the first network communication, the electronic device 101 may receive an RRC connection reconfiguration message of measurement configuration for at least one or more cells corresponding to the SCG.

According to an embodiment, in operation 513, the first communication processor 212 may provide measurement settings for at least one or more cells corresponding to the SCG to the second communication processor 214. In operation 515, according to an embodiment, the first communication processor 212 may complete the establishment of the RRC connection with the first network 501. According to various embodiments, operation 515 may be performed before operation 511. In operation 517, the second communication processor 214 may perform SCG measurement based on measurement settings for at least one or more cells corresponding to the received SCG. Here, the measurement of at least one or more cells corresponding to the SCG is a parameter of a communication signal of at least one or more neighbor cells corresponding to the SCG (eg, reference signal received power (RSRP), reference signal received power (RSRQ)). quality), received signal strength indicator (RSSI), or signal to noise ratio (SNR)). The RRC connection reconfiguration message may include a result reporting condition for measurement of at least one or more cells corresponding to the SCG. For example, the RRC connection reconfiguration message may include an NR-B1 event as a reporting condition.

Entering conditions and leaving conditions according to the NR-B1 event, which are examples of the reporting conditions, may be as shown in Table 1.

Inequality B1-1 (Entering condition)
Mn + Ofn-Hys> Thresh
Inequality B1-2 (Leaving condition)
Mn + Ofn + Hys <Thresh
-Hys: reflect hysteresis value
-Ofn: freq. Reflect specific offset

Mn in Table 1 may represent the measurement result of the inter-RAT neighbor cell. According to various embodiments, at least one offset included in the equation may have a value of 0. In an embodiment of the present disclosure, measurement of a neighbor cell may mean measuring a characteristic of a signal transmitted from the neighbor cell. Mn may be expressed in dBm or dB depending on, for example, a measurement quantity of an inter-RAT neighbor cell. Ofn may be a frequency specific offset of the frequency of the inter-RAT neighbor cell. Hys may be a hysteresis parameter for the B1 event. Thresh may be a threshold parameter for the B1 event. Ofn and Hys can be expressed in dB or dBm, and Hys can be expressed in the same unit as Mn. If, for example, Mn + Ofn-Hys exceeds Thresh, the electronic device 101 may transmit the measurement result for the cell to the MN (for example, the first network), and also transmit the MR DC. At least one additional operation may be performed. In addition, when Mn + Ofn + Hys is less than Thresh, for example, the electronic device 101 may stop transmitting the measurement result for the corresponding cell.

According to an embodiment, in operation 519, the measurement result of the second communication processor 214 may be provided to the first communication processor 212. In operation 521, the measurement result of the first communication processor 212 may be reported to the first network 501. When the measurement result satisfies a reporting condition (eg, an NR-B1 event), the electronic device 101 may report a measurement result of cells corresponding to at least one SCG. In operation 523, the first network 501 determines an entity (eg, a base station) corresponding to the second network 502, for example, the second network 502, for the electronic device 101 based on the measurement result. It can be determined by SN. Here, the meaning of determining the second network 502 as the SN for the electronic device 101 means that at least one entity (eg, a base station) associated with the cell corresponding to the measured SCG is determined as the SN. It can be, and there is no limitation if it is an entity related to a cell corresponding to the SCG. In various embodiments, when the electronic device 101 determines a specific network (eg, the first network 501 or the second network 502) as an MN or SN, at least one entity (eg, : Base station) may be determined as MN or SN.

According to various embodiments, the first network 501 (eg, a base station corresponding to the first network 501) connects the second network 502 to the SN for the electronic device 101 based on the measurement result. You can decide whether or not. In operation 525, the first network 501 may transmit and receive an addition request and an acknowledgment with the second network 502. In operation 527, the first network 501 may transmit an RRC connection reconfiguration message including an additional SCG configuration to the electronic device 101, and the electronic device 101 may transmit the RRC connection reconfiguration message including the additional SCG configuration. RRC connection reconfiguration message can be received. In operation 529, the first communication processor 212 may provide an additional SCG setting to the second communication processor 214. The second communication processor 214 may perform synchronization signal block (SSB) synchronization in operation 531. In operation 533, the second communication processor 214 may perform a random access channel (RACH) procedure with the second network 502. According to various embodiments, a non-contention free random access channel (RACH) procedure or a contention based radon access channel (RACH) procedure may be performed with the second network 502. In operation 535, the second communication processor 214 may complete the SCG attach with the second network 502. After the SCG attach is completed, the electronic device 101 may transmit and receive user data based on at least one of the first network communication and the second network communication.

In the embodiment of FIG. 5, operations of the first communication processor 212 and the second communication processor 214 are separately described. However, as described with reference to FIG. 2B, the electronic device 101 provides the first network communication. And an integrated communication processor 260 supporting all of the second network communication or an integrated SoC. In this case, the integrated communication processor 260 or the integrated SoC may perform the operation of the first communication processor 212 and the second communication processor 214 of FIG. 5, and the first communication processor 212 and the second communication processor 212 Data transmission and reception between the communication processors 214 may be understood as data generation in the integrated communication processor 260 or the integrated SoC, or data transmission and reception between the integrated communication processor 260 or blocks in the integrated SoC. Those skilled in the art will understand that the description related to the unified communication 260 or the unified SoC described above can be applied not only to FIG. 5, but also to the entire operation of the first communication processor 212 and the second communication processor 214 of this document.

6 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to a comparative example.

According to a comparative example for comparison with an embodiment of the present invention, in operation 611, the first network 501 may transmit an RRC connection reconfiguration message including measurement configuration for at least one or more cells corresponding to the SCG. have. The first communication processor 212 may receive an RRC connection reconfiguration message based on the first network communication. In operation 613, the first communication processor 212 may provide the second communication processor 214 with measurement settings for at least one or more cells corresponding to the SCG. In operation 615, according to an embodiment, the first communication processor 212 may complete the establishment of the RRC connection with the first network 501. According to various embodiments, operation 615 may be performed before operation 611. The second communication processor 214 may measure the SCG in operation 617. In operation 619, the second communication processor 214 may provide the measurement result to the first communication processor 212. In operation 621, the first communication processor 212 may report the measurement result. The electronic device 101 may report the measurement result based on the satisfaction of the reporting condition in the RRC connection reconfiguration message. In operation 623, the first network 501 may determine the second network 502 as the SN based on the measurement result. In operation 625, the first network 501 and the second network 502 may transmit and receive an additional request and confirmation of the second network 502.

According to the comparative example, in operation 627, the second network 502 may transmit to the electronic device 101 an RRC connection reconfiguration message including an SCG additional setting including information related to DFT-S-OFDM activation, The electronic device 101 may receive an RRC connection reconfiguration message through the first communication processor 212. According to various embodiments, at least one of the electronic device 101, for example, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC is in the RACH-ConfigCommon information element. It is possible to determine whether the DFT-S-OFDM is an activated cell based on the value of msg3-transformprecoder. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of groupHoppingEnableTransformPrecoding in a PUSCH-ConfigCommon information element. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of transformPrecoder of a PUSCH-Config information element. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of transformPrecoder of the ConfiguredGrantConfig information element. In operation 629, the first communication processor 212 may provide the additional SCG setting to the second communication processor 214. In operation 631, the second communication processor 214 may determine that DFT-S-OFDM is not supported. In operation 633, the second communication processor 214 may provide information indicating an RLF trigger to the first communication processor 212. In operation 635, the first communication processor 212 may perform an RLF response operation. Alternatively, although not shown, it can be known in advance that DFT-S-OFDM is not supported for the network operation of the second communication processor 214 in the first communication processor 212, so that the first communication processor 212 A method of triggering an RLF to perform an RLF response operation without transmitting related information to the communication processor 214 is also possible. For example, the method of performing the RLF response operation may include performing an RRC re-establishment procedure in response to the RLF in the RRC connected state of the first network communication by the first communication processor 212. Accordingly, the connection of the first network communication may also be released and then reset. In addition, the electronic device 101 may reset the RRC connection with the first network 501 based on the first network communication. Thereafter, the electronic device 101 receives an RRC connection reconfiguration message from the first network 501, reports a parameter measurement result of a communication signal from the second network 502, and receives an RRC connection reconfiguration message added to the SCG. And, you can repeat the process of declaring the RLF again.

7 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 701, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. The RRC connection reconfiguration message may include information on a network to be added as an SN (eg, at least one entity corresponding to the second network 502). As described above, the RRC connection reconfiguration message may include information indicating the first UL data transmission method (eg, DFT-S-OFDM method). For example, according to various embodiments, at least one of the electronic device 101, for example, the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC is RACH- In the ConfigCommon information element, it may be determined whether the DFT-S-OFDM is activated based on the value of the msg3-transformprecoder. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of groupHoppingEnableTransformPrecoding in a PUSCH-ConfigCommon information element. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of transformPrecoder of a PUSCH-Config information element. According to various embodiments, the electronic device 101 may determine whether a cell in which DFT-S-OFDM is activated based on a value of transformPrecoder of the ConfiguredGrantConfig information element. In an embodiment, the electronic device 101 is 2 A parameter of a communication signal from a network corresponding to network communication may be measured, and the measurement result may be reported to a first network (eg, the first network 501) based on the first network communication. The electronic device 101 may receive an RRC connection reconfiguration message including information on an SN determined based on a measurement result by the first network. In an embodiment, the electronic device 101 may receive the RRC connection reconfiguration message without reporting the measurement result. For example, the first network (eg, the first network 501) may determine the SN without reporting the measurement result, and this may be referred to as a blind SCG.

According to an embodiment, in operation 703, the electronic device 101 may determine that the first UL data transmission method (eg, DFT-S-OFDM method) is not supported by the electronic device 101. The electronic device 101 may confirm that the cell uses the first UL data transmission method based on information received from the network, and may confirm that the first UL data transmission method is not supported by the electronic device 101. have. For example, the electronic device 101 may check the capability information of the electronic device 101 based on at least a part of information stored in the memory of the electronic device 101 (for example, the memory 130 of FIG. 1 ). In addition, it can be seen that the first UL data transmission method is not supported in the capability.

According to an embodiment, in operation 705, the electronic device 101 skips the addition of the SCG corresponding to the second network communication, even if a message related to the addition of the SCG corresponding to the second network communication is received from the network after the operation 703. You can perform the set operation.

In an embodiment, the electronic device 101 may skip measurement of the SCG in order to skip adding the SCG corresponding to the second network communication. For example, the first communication processor 212 may control the second communication processor 214 not to perform measurement, or may transmit information indicating that measurement is not required to the second communication processor 214. . The second communication processor 214 applies a current for measuring a parameter of a communication signal from a neighbor cell, or transmits a control signal for applying a current to other hardware (eg, RFIC and/or RFFE). The operation can be skipped. Alternatively, the first communication processor 212 may not report the measurement result to the first network 501 even if it receives the measurement result from the second communication processor 214.

In an embodiment, the electronic device 101 may disable network communication (eg, second network communication) corresponding to the SCG in order to skip adding the SCG corresponding to the second network communication. Here, the deactivation of a specific network communication means that at least some of the hardware corresponding to the specific network communication (e.g., communication processor, RFIC, RFFE) is deactivated (e.g., in a turn-off state, an idle state, or a sleep state). It can mean converting to one). Alternatively, deactivation of a specific network communication may mean setting a barring for a cell (or a base station) corresponding to a specific network communication, which will be described later.

In an embodiment, the electronic device 101 may transmit an SCG failure message to the first network 501 before, after, or during an operation set to skip adding an SCG. In an embodiment, if the electronic device 101 does not support DFT-S-OFDM, the SCG connection may be temporarily restricted. For example, it is possible to limit measurement of at least one cell corresponding to the SCG and/or change to a capacity that does not support corresponding network communication (eg, NR communication). In one embodiment, if the electronic device 101 does not support DFT-S-OFDM, it checks information of a cell using DFT-S-OFDM (eg, PCI), and does not perform connection to the cell. I can. For example, the electronic device 101 may report the SCG failure message by including information (eg, indication) indicating that DFT-S-OFDM is not supported. For example, when the electronic device 101 receives an RRC connection reconfiguration message having an additional SCG configuration for PCI confirmed to use DFT-S-OFDM, after transmitting the RRC connection reconfiguration complete message, SCG fails. You can also send a message.

As described above, the electronic device 101 may not repeat the addition of the SCG to the SN (eg, the second network 502) for using the DFT-S-OFDM scheme. Accordingly, it is possible to reduce the waste of resources caused by unnecessarily performing an operation for adding an SCG.

8 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 801, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. For example, the RRC connection reconfiguration message may include information on the second network 502 to be added as an SN (eg, a physical-layer cell ID (PCI)). For example, the electronic device 101 may measure a parameter (eg, RSRP and/or RSRQ) of a communication signal from the second network 502. The electronic device 101 may confirm that the measured parameter satisfies a reporting condition (eg, an NR-B1 event) and report the measurement result to the first network 501. The first network 501 may determine the second network 502 as the SN based on the measurement result. After the SCG addition request and confirmation transmission/reception, the first network 501 may transmit an RRC connection reconfiguration message including information on the second network 502 to the electronic device 101, for example. Meanwhile, the network corresponding to the second network communication may determine the UL data transmission method of the second network 502 as the first UL data transmission method (eg, DFT-S-OFDM method). The RRC connection reconfiguration message may include information on the first UL data transmission scheme (eg, DFT-S-OFDM scheme).

According to an embodiment, in operation 803, the electronic device 101 may determine that the first UL data transmission method is not supported. The electronic device 101 may check the first UL data transmission method based on information in the RRC connection reconfiguration message. The electronic device 101 may determine that the first UL data transmission method is not supported based on the capability information of the electronic device 101. In operation 805, the electronic device 101 may transmit an SCG failure message (eg, an SCGFailureInformationNR message defined in 3GPP TS 38.331) to the first network 501. After transmitting the RRC connection reconfiguration complete message to the first network 501, the electronic device 101 may transmit the SCG failure message to the first network 501. Accordingly, a connection formed between the electronic device 101 and the first network 501 may be maintained.

According to an embodiment, the electronic device 101 determines the SCG failure type (eg, the SCG failure type defined in 3GPP TS 38.331), t310-Expiry, scg-ChangeFailure, randomAccessProblem, rlc-MaxNumRetx defined in 3GPP TS 38.331. , srb3-IntegrityFailure, or scg-reconfigFailure. According to various embodiments, the electronic device 101 sets information indicating that the first UL data transmission method (eg, DFT-S-OFDM method) is not supported as an SCG failure type, and transmits an SCG failure message. May be. If the SCG failure type is the first UL data transmission method not supported, the first network 501 confirms that the corresponding electronic device 101 does not support the first UL data transmission method, and manages information thereon. I can. When determining the SN for the electronic device 101 based on the information, the first network 501 may determine the SN so that the DFT-S-OFDM is not used. Alternatively, the first network 501 may transmit information that the electronic device 101 does not support DFT-S-OFDM to the second network 502, and the second network 502 Other UL data transmission schemes (eg, CP OFDM scheme) may be selected.

In operation 807, the electronic device 101 is configured to skip the addition of the SCG corresponding to the second network communication even if a message related to the addition of the SCG corresponding to the second network communication is received from the network after operation 805, for example, Measurement of the cell corresponding to the SCG can be skipped.

In an embodiment, the electronic device 101 may skip measurement of the SCG. For example, the first communication processor 212 may control the second communication processor 214 not to perform measurement, or may transmit information indicating that measurement is not required to the second communication processor 214. . The second communication processor 214 applies a current for measuring a parameter of a communication signal from a neighbor cell, or transmits a control signal for applying a current to other hardware (eg, RFIC and/or RFFE). The operation can be skipped. Alternatively, the first communication processor 212 may not report the measurement result to the first network 501 even if it receives the measurement result from the second communication processor 214. According to various embodiments, the electronic device 101 may control at least some of hardware corresponding to a specific network communication (eg, a communication processor, RFIC, and RFFE) to skip measurement of CG. According to an embodiment, operations 805 and 807 may operate at least partially overlapping times, but there is no limitation. In another embodiment, the electronic device 101 may perform an operation corresponding to the RLF before, after, or during the execution of an operation set to skip measurement.

As described above, the electronic device 101 may not repeat the addition of the SCG to the SN (eg, the second network 502) for using the DFT-S-OFDM scheme. Accordingly, it is possible to reduce the waste of resources caused by unnecessarily performing an operation for adding an SCG.

9 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.

According to an embodiment, in operation 901, the first network 501 may determine the second network 502 as the SN based on the measurement result. For example, the first network 501 may receive a report of a measurement result of a parameter of a communication signal from the second network 502 from the electronic device 101, and based on this, the second network 502 may be configured. You can decide. Alternatively, the first network 501 may determine the second network 502 without reporting the measurement result. In operation 903, the first network 501 and the second network 502 may transmit and receive a network addition request and confirmation. The first network 501 may transmit, to the electronic device 101, an RRC connection reconfiguration message having an additional SCG configuration in which DFT-S-OFDM is activated, in operation 905, and the electronic device 101 For example, an RRC connection reconfiguration message may be received through the first communication processor 212. In operation 907, the first communication processor 212 may provide the additional SCG setting to the second communication processor 214.

According to an embodiment, in operation 909, the second communication processor 214 may determine that DFT-S-OFDM support is not supported, and may set to skip measurement of the second network communication. When a message instructing measurement of the second network communication is received after 909 based on the setting, the electronic device 101 may skip the measurement of the second network communication. The second communication processor 214 may determine that DFT-S-OFDM is not supported, for example, based on the capability of the electronic device 101. The capability of the electronic device 101 may support only CP-OFDM, for example, and the second communication processor 214 may confirm that DFT-S-OFDM is not supported. For example, only DFT-S-OFDM may be supported, and the second communication processor 214 may confirm that CP-OFDM is not supported. The second communication processor 214 may provide information on the inability to support DFT-S-OFDM to the first communication processor 212 in operation 911. According to various embodiments, even if the first communication processor 212 receives RRC connection reconfiguration including SCG measurement information after operation 911 based on the information received from the second communication processor 214, the second communication processor 214 receives the SCG. It may not be instructed to perform the measurement. The first communication processor 212 may transmit an RRC connection reconfiguration complete message in operation 913 based on the first network communication. In operation 915, the first communication processor 212 may transmit an SCG failure message to the first network 501. The SCG failure type of the SCG failure message may be set to any type, or may include information indicating that the DFT-S-OFDM scheme is not supported. According to various embodiments, it may be confirmed in advance that the first communication processor 212 does not support the DFT-S-OFDM scheme in a network corresponding to the second communication processor 214. The first communication processor 212 may determine to perform operations 911 to 915 without performing operations 907 to 911 based on the information. In operation 917, the first network 501 and the second network 502 may perform an SCG failure procedure. If the SCG failure type of the SCG failure message includes information indicating that the DFT-S-OFDM scheme is not supported, the first network 501 and/or the second network 502 may use the electronic device 101 It can be managed that the DFT-S-OFDM scheme is not supported. Later, when SCG addition is performed on the electronic device 101, the first network 501 and/or the second network 502 electronically transmits an RRC connection reconfiguration message having an SCG addition setting activating CP-OFDM. It can be transmitted to the device 101. Accordingly, the electronic device 101 may perform second network communication based on CP-OFDM.

10 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1001, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. In the RRC connection reconfiguration message including the additional SCG configuration, for example, the first UL data transmission method (eg, DFT-S-OFDM method) may be activated. In operation 1003, the electronic device 101 may determine that the electronic device 101 does not support the first UL data transmission method. In operation 1005, the electronic device 101 may transmit an SCG failure message. For example, the electronic device 101 may transmit an RRC connection reconfiguration complete message and then transmit an SCG failure message. The SCG failure type of the SCG failure message is not limited, and may include information indicating that the DFT-S-OFDM scheme is not supported, for example.

According to an embodiment, in operation 1007, the electronic device 101 may set skip measurement for the second network communication. When the measurement skip for the second network communication is set, the electronic device 101 may skip the measurement for the second network communication even if it receives a message instructing the additional measurement. The electronic device 101 may start the timer from a point in time when the measurement for the second network communication is skipped. For example, the electronic device 101 may be configured to perform measurement on the second network communication based on information in a system information block (SIB) from the first network 501. If it is determined to skip the measurement of the second network communication, the electronic device 101 may skip the measurement of the entire band (or frequency) specified in the information in the SIB. Alternatively, the electronic device 101 may skip the measurement of a band or cell corresponding to the PCI of the second network 502. According to various embodiments, in the case of skipping the measurement of a band corresponding to the PCI of the second network 502, the electronic device 101 may measure a band (or frequency) other than the band corresponding to the corresponding PCI. You can also do it. According to various embodiments, in the case of skipping the measurement of a cell corresponding to the PCI of the second network 502, the electronic device 101 may perform measurement of another cell included in the band corresponding to the corresponding PCI. have. In operation 1009, the electronic device 101 may check whether the timer expires. The time of the timer may be set by the electronic device 101 or may be set by a network. If it is determined that the timer has not expired (1009-No), the electronic device 101 may maintain a skip setting of measurement for the second network communication. If it is determined that the timer has expired (1009-Yes), the electronic device 101 may resume measurement of the second network communication in operation 1011. If measurement of the entire band (or frequency) specified in the SIB is skipped, the electronic device 101 may resume measurement of the entire band (or frequency). If the measurement of the band (or frequency) or cell corresponding to the PCI of the second network 502 is skipped, the electronic device 101 may resume measurement of the corresponding band (or frequency) or cell. I can. In both cases, the electronic device 101 may perform measurement on the entire band (or frequency) specified in the SIB without limitation. According to an embodiment, in addition to the timer expiration, the electronic device 101 may resume measurement of the second network communication when a new SIB is received. In addition to the timer expiration, or the reception of a new SIB, there is no limit to the trigger event to resume measurement of the second network communication. Accordingly, when a predetermined time elapses, the electronic device 101 may perform measurement on the second network communication again.

11 is a flowchart illustrating a method of operating an electronic device, a first network, and a second network according to an exemplary embodiment.

According to an embodiment, in operation 1101, the first network 501 may determine the second network 502 as the SN based on the measurement result. For example, the first network 501 may receive a report of a measurement result of a parameter of a communication signal from the second network 502 from the electronic device 101, and based on this, the second network 502 may be configured. You can decide. Alternatively, the first network 501 may determine the second network 502 without reporting the measurement result. In operation 1103, the first network 501 and the second network 502 may transmit and receive an additional request and confirmation. The first network 501 may transmit, to the electronic device 101, an RRC connection reconfiguration message having an additional SCG configuration in which DFT-S-OFDM is activated, in operation 1105, and the electronic device 101 provides a first communication. The RRC connection reconfiguration message may be received through the processor 212. In operation 1107, the first communication processor 212 may provide the SCG additional setting to the second communication processor 214.

According to an embodiment, in operation 1109, the second communication processor 214 may determine that DFT-S-OFDM is not supported, and may set skip measurement for the second network communication. When the second communication processor 214 receives a message indicating measurement information for the SCG between operation 1109 and before the timer expires, the second communication processor may skip the measurement for the second network communication. The second communication processor 214 may start a timer. The timer may be started from a time when a measurement skip for the second network communication is set, a time when an actual measurement for the second network is skipped, or a time when an RRC connection reconfiguration message is received, and there is no limit to the start time. The second communication processor 214 may provide information on the inability to support DFT-S-OFDM to the first communication processor 212 in operation 1111. The first communication processor 212 may transmit an RRC connection reconfiguration complete message in operation 1113 based on the first network communication. In operation 1115, the first communication processor 212 may transmit an SCG failure message to the first network 501. According to various embodiments, it may be confirmed in advance that the first communication processor 212 does not support the DFT-S-OFDM scheme in a network corresponding to the second communication processor 214. The first communication processor 212 may determine to perform operations 1113 to 1115 without performing operations 1107 to 1111 based on the information. In operation 1117, the first network 501 and the second network 502 may perform an SCG failure procedure. Until the timer expires, the second communication processor 214 may skip measurement of the second network communication. For example, the second communication processor 214 may skip measurement of the entire band (or frequency) specified in the SIB or skip measurement of a portion of the band (or frequency) specified in the SIB.

According to an embodiment, in operation 1119, the second communication processor 214 may check the timer expiration and resume measurement for the second network communication. For example, the second communication processor 214 may perform measurement without limitation on a band (or frequency) specified in the SIB. In one example, although not shown, the electronic device 101 may receive an RRC connection reconfiguration message indicating measurement, and then resume measurement based on a measurement object (MO) included in the message. In another example, the electronic device 101 may resume measurement of the corresponding MO based on the validity of the existing MO. After restarting the measurement, in operation 1121, the second communication processor 214 may provide the measurement result to the first communication processor 212. For example, there is a possibility that the OFDM configuration of the second network 502 is changed from DFT-S-OFDM to CP-OFDM, and in this case, the electronic device 101 may have to perform SN addition. Alternatively, when the electronic device 101 skips measurement of a cell using a specific PCI, when the electronic device 101 moves to a different area, there is a possibility that other cells overlap and use a specific PCI in a different area. In this case, since the electronic device 101 does not need to skip the measurement of the corresponding PCI cell, the electronic device 101 may need to attach to another cell in a different area by performing the measurement. Accordingly, even if measurement resumes after the timer expires, the electronic device 101 may perform an SCG addition procedure for the PCI that skipped the existing measurement based on the measurement result.

According to various embodiments, in operation 1123, the first communication processor 212 may report the measurement result to the first network 501. The electronic device 101 may report the measurement result to the first network 501 based on, for example, that the measurement result satisfies the reporting condition. In operation 1125, the first network 501 may determine the second network 502 as the SN based on the measurement result. For example, the second network 502 may be configured to use the CP-OFDM scheme, and in this case, the first network 501 electronically transmits an RRC connection reconfiguration message having an additional SCG configuration for activating CP-OFDM. It can also be transmitted to the device 101. If the SCG failure message includes information that the SCG failure type is not supported by DFT-S-OFDM, at least one of the first network 501 and the second network 502 uses CP-OFDM for the second network communication. Or, a network supporting CP-OFDM may be selected as the SN. Accordingly, when a predetermined time elapses, the electronic device 101 may perform measurement on the second network communication again.

12 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1201, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. In the RRC connection reconfiguration message including the additional SCG configuration, for example, the first UL data transmission method (eg, DFT-S-OFDM method) may be activated. The RRC connection reconfiguration message may include information on a network for SCG addition, for example, the first PCI. In operation 1203, the electronic device 101 may determine that the first UL data transmission method is not supported.

According to an embodiment, in operation 1205, the electronic device 101 may perform an operation set to skip adding an SCG corresponding to a second network communication related to the first PCI. For example, the electronic device 101 may set skip of measurement for a band (or frequency) corresponding to the first PCI. For example, the electronic device 101 may barring a cell corresponding to the first PCI. The electronic device 101 may perform measurement on a band (or frequency) other than the band corresponding to the first PCI. The electronic device 101 may perform measurement on a band (or frequency) based on information included in the received SIB, for example, and for a band (or frequency) corresponding to the first PCI Measurement skip can be set. Alternatively, the electronic device 101 may set a cell corresponding to the first PCI by barring and set it as a barred cell. Accordingly, the electronic device 101 may not perform the SCG addition operation for the barred cell. When barring a cell corresponding to the first PCI, the electronic device 101 may determine whether to set barring for cells other than the cell corresponding to the first PCI based on at least one of a measurement result or cell information. When a cell that is not determined as a barred cell among the remaining cells is identified, the electronic device 101 may perform an SCG addition operation on the corresponding cell. Accordingly, the electronic device 101 may perform SCG addition corresponding to another PCI while skipping the addition of the SCG for a specific PCI.

13A and 13B are flowcharts illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the second communication processor 214 may measure the second network communication in operation 1301. For example, the first communication processor 212 may receive an RRC connection reconfiguration message having an SCG measurement setting from the first network 501, and the second communication processor 214 may include the first communication processor 212 SCG measurement settings can be provided from. The second communication processor 214 may perform measurement on the second network communication based on the provided measurement setting. In operation 1303, the second communication processor 214 may provide the measurement result to the first communication processor 212. The first communication processor 212 may report the measurement result to the first network 501. The electronic device 101 according to an embodiment may report the measurement result to the first network 501 based on the measurement result satisfying the reporting condition.

According to an embodiment, the first network 501 may determine the second network 502 as the SN based on the measurement result in operation 1307. For example, the electronic device 101 includes parameters of a communication signal from the second network 502 (for example, RSRP and/or RSRQ), and a parameter of a communication signal from the third network 503 (for example, RSRP and / Or RSRQ) can be measured. If both the parameter of the communication signal from the second network 502 and the parameter of the communication signal from the third network 503 satisfy the reporting condition, the electronic device 101 Both the parameters of the communication signal and the parameters of the communication signal from the third network 503 may be reported to the first network 501. The first network 501 is based on the parameter of the communication signal from the second network 502 and the parameter of the communication signal from the third network 503, the second network 502 and the third network 503 Among them, the second network 502 may be determined as the SN. Accordingly, the first network 501 and the second network 502 may transmit and receive a second network addition request and confirmation in operation 1309. In operation 1311, the first network 501 may transmit an RRC connection reconfiguration message having an additional SCG configuration in which DFT-S-OFDM is activated. It may be associated with a PCI) corresponding to the network 502. The first communication processor 212 may provide an additional SCG setting to the second communication processor 214 based on the received RRC connection reconfiguration message.

According to an embodiment, the second communication processor 214 may determine in operation 1315 that DFT-S-OFDM is not supported, based on, for example, capacity information of the electronic device 101. The second communication processor 214 may set the skip of measurement for the second network communication related to the first PCI, and accordingly, may skip the measurement for the second network communication related to the first PCI. For example, the electronic device 101 may transmit an RRC connection reconfiguration complete message and transmit an SCG failure message to the first network 501.

According to an embodiment, in operation 1317, the second communication processor 214 may maintain measurement of the second network communication except for the first PCI. For example, the second communication processor 214 skips the measurement of the band (or frequency) corresponding to the first PCI, but can continue the measurement of at least some of the remaining bands (or frequency) have. For example, the second communication processor 214 may skip measurement of the band (or frequency) corresponding to the first PCI until the timer expires or a new SIB reception event is detected. Accordingly, in operation 1317, the second communication processor 214 may continue to measure parameters (eg, RSRP and/or RSRQ) of the communication signal from the third network 503. In operation 1319, the second communication processor 214 may provide a measurement result (eg, a parameter of a communication signal from the third network 503) to the first communication processor 212. In operation 1321, the first communication processor 212 may report the measurement result to the first network 501. In operation 1323, the first network 501 may determine the third network 503 as the SN based on the measurement result. Accordingly, the first network 501 and the third network 503 may transmit and receive a third network addition request and confirmation in operation 1325. In operation 1327, the first network 501 may transmit an RRC connection reconfiguration message having an additional SCG configuration in which CP-OFDM is activated, and the electronic device 101 transmits an RRC connection through the first communication processor 212. Reconfiguration messages can be received. The RRC connection reconfiguration message may be associated with a second PCI (eg, a PCI corresponding to the third network 503). The first communication processor 212 may provide an additional SCG setting to the second communication processor 214 based on the received RRC connection reconfiguration message. In operation 1331, the second communication processor 214 may perform SSB synchronization. In operation 1333, the second communication processor 214 may perform a RACH procedure (eg, a CF RACH procedure or a CB RACH procedure) with the third network 503. In operation 1335, the second communication processor 214 may complete the SCG attach with the third network 503. After the SCG attach is completed, the electronic device 101 may transmit and receive user data based on at least one of the first network communication and the second network communication.

As described above, since the electronic device 101 can skip the measurement for a specific PCI and maintain the measurement for the remaining PCI, it is possible to quickly access a cell of the UL data transmission scheme supported.

14 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1401, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication associated with the first PCI may be received. For example, in the RRC connection reconfiguration message, a first data transmission method (eg, DFT-S-OFDM method) may be activated. In operation 1403, the electronic device 101 may determine that the first UL data transmission method is not supported by the electronic device 101. For example, the electronic device 101 may determine that the first UL data transmission method is not supported based on the capability information. In operation 1405, the electronic device 101 may transmit an SCG failure message based on the first network. The electronic device 101 may transmit the SCG failure message after transmitting the RRC connection reconfiguration message.

According to an embodiment, the electronic device 101 may measure the second network communication except for the first PCI in operation 1407. In operation 1409, the electronic device 101 may check whether a measurement result related to another PCI satisfies a reporting condition. For example, when the reporting condition is an NR-B1 event, the electronic device 101 may check whether a measurement result associated with another PCI satisfies the NR-B1 event. If it is confirmed that the measurement result related to another PCI satisfies the reporting condition (1409-Yes), the electronic device 101 may report the measurement result in operation 1411. If it is determined that the measurement result related to another PCI does not satisfy the reporting condition (1409-No), the electronic device 101 may check whether the timer has expired in operation 1413. The electronic device 101 may start the timer from a time when measurement of the second network communication other than the first PCI is started, for example, a time when measurement of the second network communication of the first PCI is skipped. If it is determined that the timer has not expired (1413-No), the electronic device 101 may measure the second network communication except for the first PCI. When it is determined that the timer has expired (1413-Yes), the electronic device 101 may measure the second network communication in operation 1415. The electronic device 101 may measure a band (or frequency) corresponding to the excluded first PCI.

As described above, even while measurement for a specific PCI is stopped, it may be possible to measure another PCI.

15 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1501, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. For example, after reporting the measurement of the second network communication, the electronic device 101 may receive an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication. Alternatively, in the case of blind SCG addition, the electronic device 101 may receive an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication without reporting the measurement on the second network communication. . For example, in the RRC connection reconfiguration message, a first UL data transmission scheme (eg, DFT-S-OFDM scheme) may be activated. In operation 1503, the electronic device 101 may determine that the first UL data transmission method is not supported by the electronic device 101. For example, the electronic device 101 may determine that the first UL data transmission method is not supported based on the capability information. In operation 1505, the electronic device 101 may transmit an SCG failure message based on the first network. The electronic device 101 may transmit the SCG failure message after transmitting the RRC connection reconfiguration message.

According to an embodiment, in operation 1507, the electronic device 101 may convert the second communication processor 214 into an inactive state. Here, the inactive state is a state that consumes less power than the active state, and may be one of a turn-off state, an idle state, or a sleep state, and the type of the inactive state is limited. none. The transition of the second communication processor 214 to the deactivated state includes the transition of the second communication processor 214 to the deactivated state, and/or at least one hardware associated with the second communication processor 214 (e.g., a second RFIC 224, the third RFIC 226, the fourth RFIC 228, the second RFFE 234, at least one of the third RFFE 236, or the phase converter 238) is switched to the deactivated state. Those of skill in the art will understand that it can. For example, when the electronic device 101 includes the first communication processor 212 and the second communication processor 214, the first communication processor 212 is set to the second communication processor 214 in an inactive state. Can be controlled to switch. Alternatively, the second communication processor 214 may convert itself to an inactive state based on confirming that the DFT-S-OFDM is not supported. For example, when the electronic device 101 includes the unified communication processor 260 or the unified SoC, the unified communications processor 260 or the unified SoC is hardware associated with the second network communication (for example, at least one RFIC). And/or at least one RFFE) may be switched to an inactive state. For example, when the electronic device 101 includes the integrated communication processor 260 or the integrated SoC, the integrated communication processor 260 or the integrated SoC switches the function block corresponding to the second network communication to an inactive state. can do. Accordingly, the electronic device 101 does not repeat the SCG addition operation again, thereby reducing resource waste generated during the SCG addition operation.

16 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the first network 501 may determine the second network 502 as the SN in operation 1601. The first network 501 may receive a report of a measurement result of a parameter of a communication signal from the second network 502 from the electronic device 101, and determine the second network 502 as an SN based on the report result. have. Alternatively, the first network 501 may determine the second network 502 as the SN without reporting the measurement result. In operation 1603, the first network 501 and the second network 502 may transmit and receive a second network addition request and confirmation. In operation 1605, the first network 501 may transmit an RRC connection reconfiguration message having an additional SCG configuration in which DFT-S-OFDM is activated to the electronic device 101. The RRC connection reconfiguration message may be received through the processor 212. In operation 1607, the first communication processor 212 may provide an additional SCG setting to the second communication processor 214. In operation 1609, the second communication processor 214 may determine that DFT-S-OFDM is not supported. In operation 1611, the second communication processor 214 may provide the first communication processor 212 that DFT-S-OFDM is not supported.

According to an embodiment, the second communication processor 214 may transition to an inactive state and start a timer in operation 1613. For example, the second communication processor 214 may enter a deactivated state by itself, or may enter a deactivated state under the control of the first communication processor 214. In addition, a timer for returning from the deactivated state to the activated state may be started. The determination of whether to start and expire the timer may be performed by the second communication processor 214, but may be performed by the first communication processor 212 depending on implementation. In operation 1615, the electronic device 101 may transmit an RRC connection reconfiguration complete message to the first network 501. In operation 1617, the first communication processor 212 may transmit an SCG failure message. The first network 501 and the second network 502 may perform an SCG failure procedure in operation 1619. In operation 1621, when the timer expires, the second communication processor 214 may switch to the activated state. If the first communication processor 212 determines whether the timer expires, the first communication processor 212 transmits a control signal for switching to the active state to the second communication processor 214 based on the timer expiration. Can provide. In this case, the second communication processor 214 may switch to the activated state based on the received control signal. If the second communication processor 214 determines whether the timer expires, the second communication processor 212 may switch to the activated state based on the timer expiration. Accordingly, the electronic device 101 does not repeat the SCG addition operation again, thereby reducing resource waste generated during the SCG addition operation.

17 is a flowchart illustrating a method of operating an electronic device according to an exemplary embodiment.

According to an embodiment, the electronic device 101 (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1701, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication may be received. In operation 1703, the electronic device 101 may determine that the first UL data transmission method (eg, DFT-S-OFDM method) is not supported. In operation 1705, the electronic device 101 may transmit an SCG failure message.

According to an embodiment, in operation 1707, the electronic device 101 may switch the second network communication function to an inactive state. For example, the capability information of the electronic device 101 may be set to support both the first network communication and the second network communication. The electronic device 101 may set the capability information to support only the first network communication based on the fact that the first UL data transmission method (eg, DFT-S-OFDM method) is not supported. In operation 1709, the electronic device 101 may report capability information. For example, the electronic device 101 may report by reflecting the changed capability information in the UE capability field in the RRC message. In the network that has received the capability information, it may be confirmed that the electronic device 101 supports only the first network communication, and accordingly, the SCG addition procedure may not proceed. According to an embodiment, after starting the timer, when the timer expires, the electronic device 101 may restore the capability information to support both the first network communication and the second network communication again. Alternatively, even when receiving a new SIB, the electronic device 101 may restore the capability information to support both the first network communication and the second network communication again. Accordingly, the electronic device 101 does not repeat the SCG addition operation again, thereby reducing resource waste generated during the SCG addition operation. In addition, in the network, the specific electronic device 101 may operate so that the SCG addition operation is not performed.

18 is a flowchart illustrating a method of operating an electronic device according to an embodiment.

According to an embodiment, the electronic device 101 (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC), in operation 1801, Based on the first network communication, an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication associated with the first PCI may be received. In operation 1803, the electronic device 101 may determine that the first UL data transmission scheme activated in the RRC connection reconfiguration message is not supported. In operation 1805, the electronic device 101 may transmit an SCG failure message. In operation 1807, the electronic device 101 may set barring for a cell corresponding to the first PCI, and manage the cell as a barred cell. Accordingly, an additional SCG addition process may not proceed. Managing the cell corresponding to the first PCI as a barred cell may also be terminated when the timer expires. Alternatively, even when a new SIB is received, managing a cell corresponding to the first PCI as a barred cell may be terminated. Accordingly, the electronic device 101 does not repeat the SCG addition operation again, thereby reducing resource waste generated during the SCG addition operation. In addition, in the network, the specific electronic device 101 may operate so that the SCG addition operation is not performed.

19 is a flowchart illustrating a method of operating a network according to an embodiment.

According to an embodiment, in operation 1901, the first network 501 may transmit an RRC connection reconfiguration message including an additional SCG configuration corresponding to the second network communication associated with the first PCI to the electronic device 101. have. In one embodiment, the first network 501 determines the network corresponding to the first PCI as SN based on the measurement result reported from the electronic device 101, or the first PCI without reporting the measurement result. The corresponding network can be determined as the SN. In operation 1903, the first network 501 may receive an RRC connection reconfiguration complete message. Thereafter, the first network 501 may receive an SCG failure message from the electronic device 101 in operation 1905.

According to an embodiment, in operation 1907, the first network 501 may determine whether the cause of the SCG failure is DFT-S-OFDM not supported. In one embodiment, the failure type of the SCG failure message may be set to DFT-S-OFDM not supported (eg, dft-s-ofdmFailure). When the cause of the SCG failure of the electronic device 101 is that DFT-S-OFDM is not supported (1907-Yes), the first network 501 receives an additional measurement report in operation 1909, among the remaining PCIs except for the first PCI. SCG can be selected. When the cause of the SCG failure of the electronic device 101 is not DFT-S-OFDM non-support (1907-No), the first network 501 may select the SCG from among all PCI when receiving an additional measurement report in operation 1911. have. Accordingly, when the electronic device 101 does not support the UL data transmission method of the first PCI, the corresponding PCI may not be added to the electronic device 101 with the SCG. Accordingly, the electronic device 101 does not repeat the SCG addition operation again, thereby reducing resource waste generated during the SCG addition operation. In addition, in the network, the specific electronic device 101 may operate so that the SCG addition operation is not performed.

According to various embodiments, the electronic device (electronic device 101) includes at least one communication processor (eg, a first communication processor 212, a second communication processor ( 214), the integrated communication processor 260, or at least one of the integrated SoC), and the at least one communication processor (eg, the first communication processor 212, the second communication processor 214, the integrated communication processor 260 ) Or at least one of the integrated SoC), based on the first network communication, receives an RRC connection reconfiguration message including an additional configuration of a secondary cell group (SCG) corresponding to the second network communication, and the RRC connection reconfiguration Based on the confirmation that the DFT-S-OFDM scheme specified by the message is not supported by the electronic device (electronic device 101), and the DFT-S-OFDM is not supported, the second network communication It may be set to perform a preset operation to skip the addition of the SCG corresponding to.

According to various embodiments, the at least one communication processor (for example, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is the RRC connection reconfiguration It may be further configured to transmit an RRC connection reconfiguration complete message corresponding to the message and transmit an SCG failure message.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is As at least a part of an operation of performing a preset operation to skip adding an SCG corresponding to communication, it may be configured to set skip of measurement for the second network communication.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is As at least part of the operation of skipping the measurement for communication, it may be configured to set skip of measurement for a physical-layer cell ID (PCI) corresponding to the RRC connection reconfiguration message.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is It may be further configured to start a timer based on the skip of measurement for communication, and to resume measurement for the PCI when it is confirmed that the timer has expired.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is a new SIB (system information block) may be further configured to resume measurement of the PCI.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is While skipping the measurement, measurement is performed on a frequency other than the frequency corresponding to the PCI, and the measurement result is based on the satisfaction of the reporting condition set in the RRC connection reconfiguration message, and the measurement result is transmitted to the first network. It may be further configured to report based on communication.

According to various embodiments, the at least one communication processor includes a first communication processor supporting the first network communication and a second communication processor supporting the second network communication, and the at least one communication processor ( Example: At least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) performs a preset operation to skip adding the SCG corresponding to the second network communication. As at least a part of an operation to be performed, at least one of the second communication processor or at least one piece of hardware configured to process a signal from the second communication processor may be set to be switched to an inactive state.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is in the deactivated state. The timer is started based on the conversion of, and when it is confirmed that the timer has expired, at least one of the second communication processor or the at least one hardware configured to process a signal from the second communication processor is set to an activated state. It can be further set to switch.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) receives a new SIB. Based on, it may be further configured to switch at least one of the second communication processor or the at least one piece of hardware configured to process a signal from the second communication processor to an activated state.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is As at least a part of an operation of performing a preset operation to skip adding an SCG corresponding to communication, it may be configured to barring a cell corresponding to a PCI corresponding to the RRC connection reconfiguration message.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) corresponds to the PCI. It may be set to start a timer based on the barring setting for the cell to be set, and to end the barring setting for the cell corresponding to the PCI when it is confirmed that the timer has expired.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) receives a new SIB. Based on, it may be set to terminate the barring setting for the cell corresponding to the PCI.

According to various embodiments, the at least one communication processor (eg, at least one of the first communication processor 212, the second communication processor 214, the integrated communication processor 260, or the integrated SoC) is the DFT-S -Based on the not supported OFDM, from supporting both the first network communication and the second network communication, the capability information of the electronic device (the electronic device 101), the first network communication It may be further configured to change to a supported one and report the changed capability information.

According to various embodiments, a method of operating an electronic device (electronic device 101) supporting a first network communication and a second network communication is based on the first network communication, the SCG corresponding to the second network communication. (secondary cell group) Receiving an RRC connection reconfiguration message including additional configuration, the DFT-S-OFDM scheme specified by the RRC connection reconfiguration message is not supported by the electronic device (electronic device 101) And performing a preset operation to skip the addition of the SCG corresponding to the second network communication based on that the DFT-S-OFDM is not supported.

According to various embodiments, the operation method may further include an operation of transmitting an RRC connection reconfiguration complete message corresponding to the RRC connection reconfiguration message, and an operation of transmitting an SCG failure message.

According to various embodiments, the operation of performing a preset operation to skip adding an SCG corresponding to the second network communication may set skip of measurement for the second network communication.

According to various embodiments, skipping the measurement for the second network communication may configure skipping of the measurement for a physical-layer cell ID (PCI) corresponding to the RRC connection reconfiguration message.

According to various embodiments, the electronic device (electronic device 101) includes a first communication processor supporting the first network communication and a second communication processor supporting the second network communication, and the second The operation of performing a preset operation to skip the addition of the SCG corresponding to the network communication, converts at least one of the second communication processor or at least one hardware set to process a signal from the second communication processor to an inactive state. can do.

According to various embodiments, the operation of performing a preset operation to skip the addition of the SCG corresponding to the second network communication may barring a cell corresponding to the PCI corresponding to the RRC connection reconfiguration message.

The electronic device according to the exemplary embodiments disclosed in this document may be a device of various types. The electronic device may include, for example, a computer device, a portable communication device (eg, a smart phone), a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

Embodiments of the present document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutes of the corresponding embodiment. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the above items unless clearly indicated otherwise in a related context. In this document, “A or B”, “at least one of A and B”, “at least one of A or B,” “A, B or C,” “at least one of A, B and C,” and “A Each of the phrases such as "at least one of, B, or C" may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish the component from other Order) is not limited. Some (eg, first) component is referred to as “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When mentioned, it means that any of the above components may be connected to the other components directly (eg by wire), wirelessly, or via a third component.

The term "module" used in this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits. The module may be an integrally configured component or a minimum unit of the component or a part thereof that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

One embodiment of the present document is a software containing one or more instructions stored in a storage medium (e.g., internal memory or external memory) readable by a machine (e.g., a master device or a task performing device). Example: Program). For example, the processor of the device (for example, a master device or a task performing device) may call at least one command among one or more commands stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here,'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term refers to the case where data is semi-permanently stored in the storage medium. It does not distinguish between temporary storage cases.

According to an embodiment, the method according to the embodiments disclosed in the present document may be provided by being included in a computer program product. Computer program products can be traded between sellers and buyers as commodities. Computer program products are distributed in the form of a device-readable storage medium (e.g., compact disc read only memory (CD-ROM)), or through an application store (e.g. Play StoreTM) or two user devices (e.g. It can be distributed (e.g., downloaded or uploaded) directly between, e.g. smartphones) In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a storage medium that can be read by a device such as a server of a manufacturer, a server of an application store, or a memory of a relay server.

According to exemplary embodiments, each component (eg, a module or program) of the above-described components may include a singular number or a plurality of entities. According to exemplary embodiments, one or more elements or operations among the above-described corresponding elements may be omitted, or one or more other elements or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components in the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. . According to one embodiment, operations performed by a module, program, or other component are sequentially, parallel, repeatedly, or heuristically executed, or one or more of the above operations are executed in a different order or omitted. Or one or more other actions may be added.

Claims (20)

In the electronic device,
At least one communication processor supporting first network communication and second network communication, wherein the at least one communication processor,
Based on the first network communication, receiving an RRC connection reconfiguration message including an additional configuration of a secondary cell group (SCG) corresponding to the second network communication,
Confirming that the DFT-S-OFDM scheme specified by the RRC connection reconfiguration message is not supported by the electronic device,
Based on the DFT-S-OFDM not supported, the electronic device configured to perform a preset operation to skip adding the SCG corresponding to the second network communication. The method of claim 1,
The at least one communication processor,
Transmitting an RRC connection reconfiguration complete message corresponding to the RRC connection reconfiguration message,
An electronic device further configured to send an SCG failure message. The method of claim 1,
The at least one communication processor is at least a part of an operation of performing a preset operation to skip adding an SCG corresponding to the second network communication,
An electronic device configured to set skip of measurement for the second network communication. The method of claim 3,
The at least one communication processor, as at least part of the operation of skipping the measurement for the second network communication,
An electronic device configured to set skip of measurement for a physical-layer cell ID (PCI) corresponding to the RRC connection reconfiguration message. The method of claim 4,
The at least one communication processor,
Start a timer based on the skip of measurement for the second network communication,
When it is confirmed that the timer has expired, the electronic device is further configured to resume measurement of the PCI. The method of claim 4,
The at least one communication processor,
An electronic device further configured to resume measurement of the PCI based on the reception of a new system information block (SIB). The method of claim 4,
The at least one communication processor,
While skipping the measurement for the PCI, performing a measurement for a frequency other than the frequency corresponding to the PCI,
The electronic device further configured to report the measurement result based on the first network communication based on the measurement result satisfying the reporting condition set in the RRC connection reconfiguration message. The method of claim 1,
The at least one communication processor includes a first communication processor supporting the first network communication and a second communication processor supporting the second network communication,
The at least one communication processor is at least a part of an operation of performing a preset operation to skip adding an SCG corresponding to the second network communication,
An electronic device configured to switch at least one of the second communication processor or at least one piece of hardware configured to process a signal from the second communication processor to an inactive state. The method of claim 8,
The at least one communication processor,
Start a timer based on the transition to the inactive state,
When it is determined that the timer expires, the electronic device is further configured to switch at least one of the second communication processor or the at least one piece of hardware configured to process a signal from the second communication processor to an activated state. The method of claim 8,
The at least one communication processor,
The electronic device further configured to switch at least one of the second communication processor or the at least one piece of hardware configured to process a signal from the second communication processor to an activated state based on the reception of a new SIB. The method of claim 1,
The at least one communication processor is at least a part of an operation of performing a preset operation to skip adding an SCG corresponding to the second network communication,
An electronic device configured to barring a cell corresponding to PCI corresponding to the RRC connection reconfiguration message. The method of claim 11,
The at least one communication processor,
Start a timer based on the barring setting for the cell corresponding to the PCI,
When it is determined that the timer has expired, the electronic device configured to terminate the barring setting for the cell corresponding to the PCI. The method of claim 11,
The at least one communication processor,
An electronic device configured to terminate barring configuration for a cell corresponding to the PCI based on reception of a new SIB. The method of claim 1,
The at least one communication processor,
Based on the DFT-S-OFDM not supported, from supporting both the first network communication and the second network communication, the capability information of the electronic device is referred to as supporting the first network communication. Change,
The electronic device further configured to report the changed capability information. In the method of operating an electronic device supporting a first network communication and a second network communication,
Receiving an RRC connection reconfiguration message including an additional configuration of a secondary cell group (SCG) corresponding to the second network communication based on the first network communication;
Confirming that the DFT-S-OFDM scheme specified by the RRC connection reconfiguration message is not supported by the electronic device, and
Based on the DFT-S-OFDM not supported, performing a preset operation to skip adding an SCG corresponding to the second network communication
Operating method of an electronic device comprising a. The method of claim 15,
Transmitting an RRC connection reconfiguration complete message corresponding to the RRC connection reconfiguration message,
Sending an SCG failure message
The method of operating an electronic device further comprising a. The method of claim 15,
The operation of performing a preset operation to skip the addition of the SCG corresponding to the second network communication includes setting skip of measurement for the second network communication. The method of claim 17,
Skipping the measurement for the second network communication,
A method of operating an electronic device for setting skipping of measurement for a physical-layer cell ID (PCI) corresponding to the RRC connection reconfiguration message. The method of claim 15,
The electronic device includes a first communication processor supporting the first network communication and a second communication processor supporting the second network communication,
The operation of performing a preset operation to skip the addition of the SCG corresponding to the second network communication may include deactivating at least one of the second communication processor or at least one hardware configured to process a signal from the second communication processor. A method of operating an electronic device that switches to state The method of claim 15,
The operation of performing a preset operation to skip the addition of the SCG corresponding to the second network communication,
A method of operating an electronic device for barring a cell corresponding to PCI corresponding to the RRC connection reconfiguration message.

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