KR20240035229A - Electronic device for receiving paging and operating method thereof - Google Patents

Abstract

Various embodiments of the present invention relate to an apparatus and method for receiving paging in an electronic device. The electronic device includes a communication circuit and a processor, wherein the processor acquires information related to the TAI list to a first cell to which the electronic device is connected through the communication circuit, and selects information related to the TAI list from the adjacent cell list associated with the electronic device. Select a second cell different from the first cell, perform camping to the second cell, check identification information of the TA of the second cell based on camping to the second cell, and TA of the second cell The paging signal of the electronic device can be monitored through the first cell and the second cell based on the identification information of being included in the TAI list. Other embodiments may also be possible.

Description

Electronic device for receiving paging and operating method thereof {ELECTRONIC DEVICE FOR RECEIVING PAGING AND OPERATING METHOD THEREOF}

Various embodiments of the present invention relate to an electronic device for receiving paging in a wireless communication system and a method of operating the same.

A wireless communication system can provide wireless communication of electronic devices to ensure the mobility (or activity) of users carrying electronic devices. For example, wireless communication may include a communication technology in which a transmitting device and a receiving device transmit and/or receive signals (or data) via radio resources (e.g., frequency and/or time).

In a wireless communication system, paging can be used to call a specific electronic device or a plurality of electronic devices in a network entity of the wireless communication system. For example, a network entity (e.g., a base station or a transmitting node) may request the establishment of a call or session with an electronic device that is in a radio resource control (RRC) idle state or an RRC inactive state. Paging (or paging messages) can be sent to the device. When the electronic device is in the RRC idle state or RRC inactive state, it may be activated for a designated time period (e.g., paging cycle) to check whether paging (or a paging message) is received. When paging is received, the electronic device switches to the RRC connected state and can transmit and/or receive data with the network entity.

If the electronic device fails to receive paging (or a paging message), communication with the network entity may be restricted. Electronic devices require a method for efficiently receiving paging.

Various embodiments of the present invention disclose an apparatus and method for efficiently receiving paging (or a paging message) in an electronic device.

The technical problem to be achieved in this document is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

According to various embodiments, an electronic device may include a communication circuit and at least one processor operatively connected to the communication circuit. According to one embodiment, the processor may obtain information related to a tracking area identifier (TAI) list from a first cell to which the electronic device is connected through a communication circuit. According to one embodiment, the processor may select a second cell that is different from the first cell to which the electronic device is connected from a list of adjacent cells related to the electronic device. According to one embodiment, the processor may perform camping to the second cell. According to one embodiment, the processor may check identification information of a tracking area (TA) of the second cell based on camping into the second cell. According to one embodiment, the processor may monitor the paging signal of the electronic device through the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list of the first cell.

According to various embodiments, a method of operating an electronic device may include obtaining information related to a tracking area identifier (TAI) list from a first cell to which the electronic device is connected. According to one embodiment, a method of operating an electronic device may include selecting a second cell that is different from the first cell to which the electronic device is connected from a list of adjacent cells related to the electronic device. According to one embodiment, a method of operating an electronic device may include camping to a second cell. According to one embodiment, a method of operating an electronic device may include checking identification information of a tracking area (TA) of the second cell based on camping into the second cell. According to one embodiment, a method of operating an electronic device may include monitoring a paging signal of the electronic device through the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list. You can.

According to various embodiments, a non-transitory computer-readable storage medium (or computer program product) storing one or more programs may be described. According to one embodiment, one or more programs, when executed by a processor of an electronic device, include an operation of obtaining information related to a TAI (tracking area identifier) list to a first cell to which the electronic device is connected and a neighboring cell related to the electronic device. An operation of selecting a second cell different from the first cell from a cell list, an operation of performing camping to the second cell, and identification information of a tracking area (TA) of the second cell based on camping to the second cell. An instruction to perform an operation of checking, and an operation of monitoring a paging signal of the electronic device through the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list. may include.

According to various embodiments of the present invention, the electronic device monitors paging through at least one adjacent cell for monitoring paging selected based on a tracking area identity (TAI) list and a serving cell to which the electronic device is connected, thereby performing paging ( or paging messages) can be relatively increased.

The effects that can be obtained from various embodiments of the present invention are not limited to the effects mentioned above, and other effects not mentioned above can be understood from the description below as a matter of common knowledge in the technical field to which the various embodiments of the present invention belong. It will be clearly understandable to those who have it.

1 is a block diagram of an electronic device according to various embodiments of the present invention.
Figure 2 is a block diagram of an electronic device for receiving paging according to various embodiments.
FIG. 3 is a flowchart for monitoring paging in an electronic device according to various embodiments.
FIG. 4 is a flowchart for determining a cell for monitoring paging in an electronic device according to various embodiments.
FIG. 5 is a flowchart for selectively determining a cell for monitoring paging in an electronic device according to various embodiments.
FIG. 6 is a flowchart for selecting a neighboring cell for monitoring paging based on a specified paging condition of an electronic device according to various embodiments.

Various embodiments are described in detail below with reference to the attached drawings.

1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments. Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., 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 (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to one embodiment, the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or may include an antenna module 197. In some embodiments, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components (e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.

The processor 120, for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or operations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores instructions or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134. According to one embodiment, the processor 120 includes the main processor 121 (e.g., a central processing unit or an application processor) or an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device 101 includes a main processor 121 and a auxiliary processor 123, the auxiliary processor 123 may be set to use lower power than the main processor 121 or be specialized for a designated function. You can. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.

The auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled. According to one embodiment, co-processor 123 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 180 or communication module 190). there is. According to one embodiment, the auxiliary processor 123 (eg, neural network processing device) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself, where artificial intelligence is performed, or may be performed through a separate server (e.g., server 108). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101. Data may include, for example, input data or output data for software (e.g., program 140) and instructions related thereto. Memory 130 may include volatile memory 132 or non-volatile 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 application 146.

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

The sound output module 155 may output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. Speakers can be used for general purposes such as multimedia playback or recording playback. 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 it.

The display module 160 can visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module 160 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102 (e.g., speaker or headphone).

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

The interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 directly or wirelessly with an external electronic device (eg, the electronic device 102). According to one 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 one 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 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

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

The power management module 188 can manage power supplied to the electronic device 101. According to one embodiment, the power management module 188 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 one embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

Communication module 190 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 190 may be a wireless communication module 192 (e.g., 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 (e.g., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It may communicate with an external electronic device 104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199. The electronic device 101 can be confirmed or authenticated.

The wireless communication module 192 may support 5G networks after 4G networks and next-generation communication technologies, for example, NR access technology (new radio access technology). NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported. The wireless communication module 192 may support high frequency bands (eg, mmWave bands), for example, to achieve high data rates. The wireless communication module 192 uses various technologies to secure performance in high frequency bands, for example, beamforming, massive array multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module 192 may support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., second network 199). According to one embodiment, the wireless communication module 192 supports Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC. Example: Downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) can be supported.

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

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band), and It may include a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in a designated high frequency band. .

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

According to one 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 external electronic devices 102 or 104 may be of the same or different type as the electronic device 101. According to one embodiment, all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, the external electronic device 104 or server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the 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 changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers 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 the relevant context clearly indicates otherwise. As used herein, “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 phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to that component in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” When mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

As used in various embodiments of this document, the term “module” may include a unit implemented in hardware, software, or firmware, and may be interchangeable with terms such as logic, logic block, component, or circuit, for example. can be used A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed 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 signals (e.g. electromagnetic waves), and this term refers to cases where data is semi-permanently stored in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or via an application store (e.g. Play Store ^TM ) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or multiple entities, and some of the multiple entities may be separately placed in other components. . According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single 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 manner as those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or , or one or more other operations may be added.

Figure 2 is a block diagram of an electronic device for receiving paging according to various embodiments. According to one embodiment, the electronic device 101 of FIG. 2 may be at least partially similar to the electronic device 101 of FIG. 1 or may include another embodiment of the electronic device.

According to various embodiments referring to FIG. 2 , the electronic device 101 may include a processor 200, a communication circuit 210, and/or a memory 220. According to one embodiment, the processor 200 may be substantially the same as the processor 120 of FIG. 1 (eg, an application processor and/or a communication processor), or may be included in the processor 120. The communication circuit 210 may be substantially the same as the wireless communication module 192 of FIG. 1 or may be included in the wireless communication module 192. The memory 220 may be substantially the same as the memory 130 of FIG. 1 or may be included in the memory 130. According to one embodiment, the processor 200 may be operatively, functionally, and/or electrically connected to the communication circuit 210 and/or the memory 220.

According to various embodiments, the processor 200 may obtain a tracking area identity (TAI) list of the first cell (or serving cell) to which the electronic device 101 is connected through the communication circuit 210. For example, the TAI list may be confirmed in a control message received from the first cell (or serving cell) to which the electronic device 101 is connected through the communication circuit 210. As an example, the control message may be an accept message related to tracking area update (TAU) (e.g., TAU accept), an accept message related to attach (e.g., attach accept), or an accept message related to registration (e.g., registration accept) message. As an example, the TAI list may include identification information of TAs (tracking areas) set to manage the same paging in the network. For example, the TA's identification information is information for identifying (or distinguishing) each TA and may include TAI or TAC (tracking area code). As an example, TAC may represent a code assigned to identify a specific TA. As an example, TAI may include TAC, mobile country code (MCC), and mobile network code (MNC).

According to various embodiments, the processor 200 may generate a list of neighboring cells related to the electronic device 101. According to one embodiment, the processor 200 selects at least one adjacent cell related to the first cell from the system information received from the first cell (or serving cell) to which the electronic device 101 is connected through the communication circuit 210. information can be obtained. The neighboring cell list may be generated based on information on at least one neighboring cell related to the first cell. As an example, information on at least one adjacent cell related to the first cell is information related to intra frequency cell reselection (e.g., adjacent cell) included in SIB (system information block) 3 and/or SIB 4 (information related to the frequency of) may be included. As an example, information on at least one adjacent cell related to the first cell may include information related to inter frequency cell reselection included in SIB 5, SIB 6, and/or SIB 24.

According to various embodiments, the processor 200 may set (or update) the priorities of adjacent cells included in the adjacent cell list related to the electronic device 101 based on measurement results related to the adjacent cells. According to one embodiment, when the electronic device 101 is in a radio resource control (RRC) idle state or an RRC inactive state, the processor 200 connects the electronic device 101 to the adjacent device for a specified first period of time that comes periodically. The communication circuit 210 may be controlled to perform measurements related to each adjacent cell included in the cell list. For example, a measurement related to a neighboring cell may include a series of operations that monitor the frequency (or frequency band) of the neighboring cell for a first specified period of time. According to one embodiment, the processor 200 may set (or update) the priorities of neighboring cells included in the neighboring cell list based on the received signal strength of each neighboring cell. For example, among neighboring cells included in the neighboring cell list, the priority of a neighboring cell with a relatively high received signal strength may be set (or updated) to be relatively high. For example, the priority of adjacent cells is an order for selecting adjacent cells for paging monitoring of the electronic device 101. As the priority of an adjacent cell is relatively higher, it may be selected relatively first. For example, the received signal strength of a neighboring cell may include a received signal strength indicator (RSSI) and/or reference signal received power (RSRP) of a signal received from the neighboring cell.

According to one embodiment, the processor 200 determines whether the wireless state information with the first cell to which the electronic device 101 is connected satisfies a specified paging condition for selecting a neighboring cell for paging monitoring of the electronic device 101. In this case, the priority of the neighboring cell included in the neighboring cell list can be set (or updated) based on radio state information with the first cell that satisfies the specified paging condition. For example, the priority of an adjacent cell may be set (or updated) based on the received signal strength of the adjacent cell when a paging condition specified based on the received signal strength of the first cell is satisfied. A state that satisfies the designated paging condition may include a state in which the received signal strength of the first cell is below the designated reference strength and the electronic device 101 is determined to be located in the weak electric field area of the first cell. In one example, the designated reference intensity may include a reference intensity associated with an A2 event or a specified intensity (e.g., approximately -100 dBm). For example, the wireless status information with the first cell includes the received signal strength of the first cell, frequency error, timing error, received signal quality of the first cell, and the location of the electronic device within the first cell (e.g., service area). Alternatively, it may include at least one of a reception failure rate of a control message.

For example, the priority of a neighboring cell may be set (or updated) based on the serving frequency and the received signal strength of the neighboring cell when a specified paging condition is satisfied based on an error in the wireless connection with the first cell. . Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using the same frequency as the serving frequency may be set lower than the priority of at least one neighboring cell using a different frequency from the serving frequency. Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using a frequency different from the serving frequency may be set (or updated) based on the received signal strength of the neighboring cell. As an example, the serving frequency may represent the frequency of the first cell to which the electronic device 101 is connected. As an example, errors in wireless connection with the first cell may include frequency error, timing error, and/or AGC drop. For example, the frequency error may represent a state in which the frequency error (e.g., frequency offset) for wireless communication with the first cell exceeds a specified reference frequency error value. As an example, timing error (or time tracking loop (TTL) error) may indicate a state in which the timing error for wireless communication with the first cell exceeds a specified reference timing error value. For example, AGC drop may indicate a state in which the AGC error for wireless communication with the first cell exceeds a specified reference AGC error value.

For example, the priority of a neighboring cell will be set (or updated) based on the serving frequency and the received signal strength of the neighboring cell if the specified paging condition is satisfied based on the received signal strength and received signal quality of the first cell. You can. Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell (e.g., intra cell) using the same frequency as the serving frequency is lower than the priority of at least one neighboring cell using a frequency different from the serving frequency. can be set. Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using a frequency different from the serving frequency may be set (or updated) based on the received signal strength of the neighboring cell. A state that satisfies the specified paging condition is when the received signal strength of the first cell exceeds the specified reference strength (e.g., about -100 dBm) but the received signal quality is below the specified reference quality (e.g., about -18 dBm), and at least one neighbor This may include a state in which interference occurs from a cell. For example, the received signal quality of an adjacent cell may include reference signal received quality (RSRP) of the signal received from the adjacent cell.

For example, the priority of the adjacent cell is set (or updated) based on the received signal strength of the adjacent cell when a specified paging condition is satisfied based on the number of cell reselections of the electronic device 101 during the specified second time period. It can be. A state that satisfies the specified paging condition means that the number of retransmissions of the electronic device 1010 during the specified second time period (e.g., about 1 minute) exceeds the specified reference number (e.g., about 5 times), and the electronic device 101 is 1 It may include a state that is determined to be located in the border area of the cell.

For example, the priority of a neighboring cell is set (or updated) based on the received signal strength of the neighboring cell when a specified paging condition is satisfied based on the reception failure rate of control messages and/or system information during a designated third time period. It can be. A state that satisfies a specified paging condition may include a state in which the reception failure rate of control messages and/or system information exceeds a specified reference failure rate (e.g., about 30%) for a specified third time period. As an example, the reception failure rate of control messages and/or system information is determined by paging (P)-RNTI (radio network temporary identifier), SI (system information)-RNTI, decoding BLER (block) of PDSCH (physical downlink shared channel) error rate) may be included.

According to various embodiments, the processor 200 may select at least one neighboring cell for monitoring paging of the electronic device 101 from among neighboring cells included in the neighboring cell list related to the electronic device 101. According to one embodiment, when the electronic device 101 switches to the RRC active state or the RRC inactive state, the processor 200 determines the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. The second cell can be selected. As an example, the second cell may include a neighboring cell with the highest priority among neighboring cells included in the neighboring cell list related to the electronic device 101. According to one embodiment, the processor 200 determines whether the wireless state information with the first cell to which the electronic device 101 is connected satisfies a specified paging condition for selecting a neighboring cell for paging monitoring of the electronic device 101. In this case, the second cell may be selected based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101.

According to one embodiment, the processor 200 may perform camping to a second cell selected based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. According to one embodiment, when camping to the second cell is successful, the processor 200 may obtain identification information of the TA related to the second cell. If the identification information of the TA related to the second cell is included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected, the processor 200 controls the second cell for paging of the electronic device 101. can be selected as an adjacent cell for monitoring. For example, identification information of the TA related to the second cell may be obtained based on system information (eg, SIB 1) received from the second cell when camping in the second cell. According to one embodiment, the processor 200 fails to camp to the second cell or the identification information of the TA associated with the second cell is not included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected. If not included, camping may be performed by selecting another neighboring cell based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. For example, the other neighboring cell may include a neighboring cell with the highest priority, excluding the second cell, among neighboring cells included in the neighboring cell list related to the electronic device 101.

According to various embodiments, the processor 200 controls at least one adjacent cell (e.g., a second cell) selected to monitor paging of the electronic device 101 and a serving cell (e.g., a second cell) to which the electronic device 101 is connected. 1 cell), the paging of the electronic device 101 can be monitored. According to one embodiment, the network entity may transmit the same paging to cells included in the TAI list (eg, the first cell and the second cell). The processor 200 may monitor the paging of the electronic device 101 through the first cell and the second cell included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected.

According to various embodiments, the processor 200 selects at least one adjacent cell (e.g., a second cell) and/or a serving cell (e.g., a serving cell to which the electronic device 101 is connected) to monitor paging of the electronic device 101. : When paging of the electronic device 101 is received through (first cell), the communication circuit 210 can be controlled to switch to the RRC connection state. The processor 200 may control the communication circuit 210 to transmit and/or receive data with a network entity based on the transition of the electronic device 101 to the RRC connection state.

According to various embodiments, the communication circuit 210 transmits and/or receives signals and/or data to and from at least one external electronic device (e.g., electronic device 102 or 104 or server 108 of FIG. 1). Support is available. According to one embodiment, the communication circuit 210 may include a first communication module and a second communication module. For example, the first communication module may support transmission and/or reception of control messages and/or data with a first node (eg, a new radio (NR) base station) through first wireless communication. As an example, the first wireless communication may include a 5th generation communication method (eg, NR communication method). For example, the second communication module may support transmission and/or reception of control messages and/or data with a second node (eg, a long-term evolution (LTE) base station) through second wireless communication. For example, the second wireless communication is a 4th generation communication method and may include at least one of LTE, LTE-advanced (LTE-A), or LTE advanced pro (LTE-A pro). For example, the first communication module and the second communication module may be composed of software that processes signals and protocols of different frequency bands. For example, the first communication module and the second communication module may be logically (eg, software) separated. For example, the first communication module and the second communication module may be composed of different circuits or different hardware.

According to various embodiments, the memory 220 may store various data used by at least one component (e.g., the processor 200 and/or the communication circuit 210) of the electronic device 101. One embodiment According to an example, memory 220 may store various instructions that can be executed through processor 200.

According to various embodiments, an electronic device (e.g., the electronic device 101 of FIG. 1 or FIG. 2) includes a communication circuit (e.g., the wireless communication module 192 of FIG. 1 or the communication circuit 210 of FIG. 2), And it may include at least one processor operatively connected to the communication circuit (e.g., the processor 120 of FIG. 1 or the processor 200 of FIG. 2). According to one embodiment, the processor, through the communication circuit. Information related to a TAI (tracking area identifier) list may be obtained as the first cell to which the electronic device is connected. According to one embodiment, the processor selects the first cell to which the electronic device is connected from a list of adjacent cells related to the electronic device. According to one embodiment, the processor may perform camping to the second cell. According to one embodiment, the processor may select the second cell based on camping to the second cell. The identification information of the TA (tracking area) can be confirmed. According to one embodiment, the processor determines the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list of the first cell. The paging signal of the electronic device can be monitored through the cell.

According to various embodiments, at least one processor may generate a list of neighboring cells related to an electronic device. According to one embodiment, the processor may perform measurements related to neighboring cells included in the neighboring cell list. According to one embodiment, the processor may set the priorities of neighboring cells included in the neighboring cell list based on the measurement results. According to one embodiment, the processor may select the second cell from the neighboring cell list based on the priorities of neighboring cells.

According to various embodiments, at least one processor may determine whether a specified paging condition is satisfied based on radio state information with the first cell. According to one embodiment, the processor may select the second cell from the neighboring cell list based on the priorities of the neighboring cells based on the determination that the specified paging condition is satisfied.

According to various embodiments, the wireless status information with the first cell includes received signal strength of the first cell, frequency error, timing error, received signal quality of the first cell, and location or control of the electronic device within the first cell. It may include at least one of the message reception failure rates.

According to various embodiments, the priority of neighboring cells included in the neighboring cell list may be set based on radio state information with the first cell that satisfies specified paging conditions.

According to various embodiments, the priority of neighboring cells included in the neighboring cell list is specified based on at least one of the received signal strength of the first cell, the location of the electronic device within the first cell, or the reception failure rate of the control message. If the paging condition is satisfied, it can be set based on the received signal strength of each neighboring cell.

According to various embodiments, the priority of neighboring cells included in the neighboring cell list is determined by determining the signal to noise ratio (SNR) of each neighboring cell when a specified paging condition is satisfied based on the received signal quality of the first cell, and It can be set based on the received signal strength.

According to various embodiments, the priority of neighboring cells included in the neighboring cell list is determined by determining the frequency of the first cell and the reception of each neighboring cell when a specified paging condition is satisfied based on the frequency error and/or the timing error. It can be set based on signal strength.

According to various embodiments, identification information of the TA of the second cell may include a tracking area code (TAC).

According to various embodiments, at least one processor sends a paging signal of the electronic device through the first cell when camping to the second cell fails or the identification information of the TA of the second cell is not included in the TAI list. It can be monitored.

FIG. 3 is a flowchart 300 for monitoring paging in an electronic device according to various embodiments. In the following embodiments, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation may be changed, and at least two operations may be performed in parallel. For example, the electronic device of FIG. 3 may be the electronic device 101 of FIG. 1 or FIG. 2 .

According to various embodiments referring to FIG. 3, in operation 301, the electronic device (e.g., the processor 120 of FIG. 1 or the processor 200 of FIG. 2) connects the first cell (or A list of TAI (tracking area identity) of the serving cell can be obtained. According to one embodiment, the processor 200 may check the TAI list of the first cell in a control message received from the first cell (or serving cell) to which the electronic device 101 is connected through the communication circuit 210. there is. As an example, the control message may be an accept message related to tracking area update (TAU) (e.g., TAU accept), an accept message related to attach (e.g., attach accept), or an accept message related to registration (e.g., registration accept) message. As an example, the TAI list may include identification information of TAs (tracking areas) set to manage the same paging in the network. For example, the TA's identification information is information for identifying (or distinguishing) each TA and may include TAI or TAC (tracking area code). As an example, TAC may represent a code assigned to identify a specific TA. As an example, TAI may include TAC, mobile country code (MCC), and mobile network code (MNC).

According to various embodiments, the electronic device (e.g., the processor 120 or 200) may select the second cell in operation 303 based on the priorities of neighboring cells included in the neighboring cell list associated with the electronic device 101. there is. According to one embodiment, when the electronic device 101 switches to the RRC active state or the RRC inactive state, the processor 200 determines the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. The second cell can be selected. As an example, the second cell may include a neighboring cell with the highest priority among neighboring cells included in the neighboring cell list related to the electronic device 101. For example, the neighboring cell list may be generated based on information on at least one neighboring cell related to the first cell included in the control message and/or system information provided from the first cell. As an example, the information on at least one adjacent cell related to the first cell may include information related to cell reselection within the frequency included in SIB 3 and/or SIB 4 (e.g., information related to the frequency of the adjacent cell). . For example, information on at least one adjacent cell related to the first cell may include information related to inter-frequency cell reselection included in SIB 5, SIB 6, and/or SIB 24. For example, the priorities of neighboring cells included in the neighboring cell list may be set (or updated) based on measurement results related to the neighboring cells. For example, the priorities of neighboring cells included in the neighboring cell list may be set (or updated) based on the received signal strength of each neighboring cell. For example, the received signal strength of a neighboring cell may include RSSI and/or RSRP of the signal received from the neighboring cell.

According to one embodiment, the processor 200 determines whether the wireless state information with the first cell to which the electronic device 101 is connected satisfies a specified paging condition for selecting a neighboring cell for paging monitoring of the electronic device 101. In this case, the second cell may be selected based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. For example, the priority of neighboring cells included in the neighboring cell list is set based on wireless status information with the first cell that satisfies a specified paging condition for selection of a neighboring cell for paging monitoring of the electronic device 101. (or can be renewed). For example, the priority of neighboring cells included in the neighboring cell list can be set (or updated) based on the received signal strength of the neighboring cell if the paging condition specified based on the received signal strength of the first cell is satisfied. there is. For example, the priority of neighboring cells included in the neighboring cell list is set based on the serving frequency and the received signal strength of the neighboring cell when the specified paging condition is satisfied based on an error in the wireless connection with the first cell ( or updated). For example, among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using the same frequency as the serving frequency may be set lower than the priority of at least one neighboring cell using a frequency different from the serving frequency. there is. For example, the priority of at least one neighboring cell using a frequency different from the serving frequency among neighboring cells included in the neighboring cell list may be set (or updated) based on the received signal strength of the neighboring cell. For example, the priority of neighboring cells included in the neighboring cell list is based on the received signal strength and received signal quality of the first cell, and when specified paging conditions are satisfied, based on the serving frequency and received signal strength of the neighboring cell. Can be set (or updated). For example, among neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell (e.g., intra cell) using the same frequency as the serving frequency is the priority of at least one neighboring cell using a frequency different from the serving frequency. It can be set lower than the rank. For example, the priority of at least one neighboring cell using a frequency different from the serving frequency among neighboring cells included in the neighboring cell list may be set (or updated) based on the received signal strength of the neighboring cell. For example, the priority of neighboring cells included in the neighboring cell list is based on the received signal strength of the neighboring cell when a specified paging condition is satisfied based on the number of cell reselections of the electronic device 101 during the designated second time period. It can be set (or updated) by doing so. For example, the priority of neighboring cells included in the neighboring cell list is based on the received signal strength of the neighboring cell if a specified paging condition is satisfied based on the failure rate of reception of control messages and/or system information for a designated third time period. It can be set (or updated) by doing so.

According to various embodiments, in operation 305, the electronic device (eg, the processor 120 or 200) may check whether camping to the selected second cell is successful based on the priorities of adjacent cells. According to one embodiment, the processor 200 may control the communication circuit 210 to perform camping to the second cell selected based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. there is. As an example, a state in which camping to the second cell is successful includes a state in which time and/or frequency are synchronized with the second cell based on a control message (e.g., synchronization signal and PBCH block (SSB)) received from the second cell. can do. As an example, SSB may include a primary synchronization signal (PSS) and a second synchronization signal (SSS).

According to various embodiments, if camping to the second cell selected based on the priorities of adjacent cells is successful (e.g., 'Yes' in operation 305), the electronic device (e.g., processor 120 or 200) performs operation 307. , it can be confirmed whether the identification information of the TA related to the second cell is included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected. According to one embodiment, the processor 200 may obtain identification information of a TA related to the second cell based on system information (eg, SIB 1) received from the second cell during the camping process to the second cell. As an example, the identification information of the TA related to the second cell may include a tracking area code (TAC) included in SIB 1 received from the second cell, as shown in Table 1 below (e.g., 3GPP TS 36.331 standard).

SystemInformationBlockType1 ::= SEQUENCE {
cellAccessRelatedInfo SEQUENCE {
plmn-IdentityList PLMN-IdentityList;
trackingAreaCode TrackingAreaCode;
cellIdentity CellIdentity;
cellBarred ENUMERATED {barred, notBarred},
intraFreqReselection ENUMERATED {allowed, notAllowed},
csg-Indication BOOLEAN,
csg-Identity CSG-Identity OPTIONAL -- Need OR
},
cellSelectionInfo SEQUENCE {
q-RxLevMin Q-RxLevMin,
q-RxLevMinOffset INTEGER (1..8) OPTIONAL-- Need OP
},
p-Max P-Max OPTIONAL, -- Need OP
freqBandIndicator FreqBandIndicator,
schedulingInfoList SchedulingInfoList,
tdd-Config TDD-Config OPTIONAL,-- Cond TDD
si-WindowLength ENUMERATED {
ms1, ms2, ms5, ms10, ms15, ms20,
ms40},
systemInfoValueTag INTEGER (0..31);
nonCriticalExtension SystemInformationBlockType1-v890-IEs OPTIONAL
}

According to various embodiments, the electronic device (e.g., the processor 120 or 200) includes the identification information of the TA related to the second cell in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected. If yes (e.g., 'Yes' in operation 307), in operation 309, the first cell (e.g., serving cell) to which the electronic device 101 is connected and the second cell selected to monitor paging of the electronic device 101 The paging of the electronic device 101 can be monitored. According to one embodiment, when the identification information of the TA related to the second cell is included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected, the processor 200 connects the first cell and the second cell. It may be determined that the two cells receive the same paging from the network entity. The processor 200 is configured to monitor paging of the electronic device 101 through a first cell (e.g., serving cell) to which the electronic device 101 is connected and a second cell selected to monitor paging of the electronic device 101. The communication circuit 210 can be controlled.

According to various embodiments, the electronic device (e.g., processor 120 or 200) fails to camp to the second cell selected based on the priorities of adjacent cells (e.g., 'No' in operation 305), or fails to camp to the second cell (e.g., 'No' in operation 305). If the identification information of the TA related to the cell is not included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected (e.g., 'No' in operation 307), one implementation for monitoring paging You can end the example. According to one embodiment, the processor 200 fails to camp to the second cell or the identification information of the TA associated with the second cell is not included in the TAI list of the first cell (or serving cell) to which the electronic device 101 is connected. If not included, it may be determined that the first cell and the second cell receive different paging from the network entity. The processor 200 may perform camping by selecting another neighboring cell based on the priorities of neighboring cells included in the neighboring cell list related to the electronic device 101. For example, the other neighboring cell may include a neighboring cell with the highest priority, excluding the second cell, among neighboring cells included in the neighboring cell list related to the electronic device 101. According to one embodiment, the processor 200 detects the electronic device 101 when there is no adjacent cell including identification information of the TA included in the TAI list of the first cell in the adjacent cell list related to the electronic device 101. ) It can be determined that there is no adjacent cell for monitoring paging. The processor 200 connects the electronic device 101 to the electronic device 101 through the first cell (e.g., serving cell) to which the electronic device 101 is connected based on the determination that there is no adjacent cell for monitoring paging of the electronic device 101. The communication circuit 210 can be controlled to monitor the paging of 101).

According to various embodiments, the electronic device 101 transmits electronic information through a first cell (e.g., serving cell) to which the electronic device 101 is connected and/or a second cell selected to monitor paging of the electronic device 101. When paging of the device 101 is received, it can switch to the RRC connection state. The electronic device 101 may transmit and/or receive data with a network entity based on the transition to the RRC connection state.

FIG. 4 is a flowchart 400 for determining a cell for monitoring paging in an electronic device according to various embodiments. According to one embodiment, at least a portion of FIG. 4 may include detailed operations of operations 303 and 305 of FIG. 3 . In the following embodiments, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation may be changed, and at least two operations may be performed in parallel. For example, the electronic device of FIG. 4 may be the electronic device 101 of FIG. 1 or FIG. 2 .

According to various embodiments referring to FIG. 4, an electronic device (e.g., processor 120 of FIG. 1 or processor 200 of FIG. 2) generates a list of neighboring cells related to the electronic device 101 in operation 401. You can. According to one embodiment, the processor 200 may configure at least one cell related to the first cell included in the system information received from the first cell (or serving cell) to which the electronic device 101 is connected through the communication circuit 210. A list of neighboring cells related to the electronic device 101 may be created based on information on neighboring cells. As an example, information on at least one adjacent cell related to the first cell is information related to intra frequency cell reselection (e.g., adjacent cell) included in SIB (system information block) 3 and/or SIB 4 (information related to the frequency of) may be included. As an example, information on at least one adjacent cell related to the first cell may include information related to inter frequency cell reselection included in SIB 5, SIB 6, and/or SIB 24. As an example, the list of adjacent cells related to the electronic device 101 includes measurement type, radio access technology (RAT), frequency (Freq), and physical cell identification (PCI) of the adjacent cell, as shown in Table 2 below. ), received signal strength (e.g. RSRP), received signal quality (e.g. RSRQ), or TAC (tracking area code).

Measure Type RAT Freq PCI RSRP RSRQ TAC serving LTE 3050 59 -100 -12 1234 interFreq LTE 2600 59 -85 -14 invalid interFreq LTE 2600 38 -102 -10 invalid interFreq LTE 3050 297 -103 -16 invalid interFreq LTE 100 38 -104 -13 invalid interFreq LTE 100 59 -105 -14 invalid … … … … … … …

According to various embodiments, the electronic device (eg, the processor 120 or 200) may perform measurement on at least one neighboring cell included in the neighboring cell list in operation 403. According to one embodiment, when the electronic device 101 is in an RRC idle state or an RRC inactive state, the processor 200 configures a cell included in the neighboring cell list for a specified first time period that comes periodically. Communication circuitry 210 can be controlled to perform measurements related to each adjacent cell. For example, a measurement related to a neighboring cell may include a series of operations that monitor the frequency (or frequency band) of the neighboring cell for a specified first period of time.

According to various embodiments, in operation 405, the electronic device (e.g., the processor 120 or 200) sets (or updates) the priority of a neighboring cell included in the neighboring cell list based on the measurement result for the neighboring cell. You can. According to one embodiment, the processor 200 may set (or update) the priorities of neighboring cells included in the neighboring cell list based on the received signal strength of each neighboring cell. For example, among neighboring cells included in the neighboring cell list, the priority of a neighboring cell with a relatively high received signal strength may be set (or updated) to be relatively high, as shown in Table 3 below. For example, a neighboring cell with a priority of '1' may indicate the cell with the highest priority in the neighboring cell list.

Priority Measure Type RAT Freq PCI RSRP RSRQ TAC One interFreq LTE 2600 59 -85 -14 invalid 2 serving LTE 3050 59 -100 -12 1234 3 interFreq LTE 2600 38 -102 -10 invalid 4 interFreq LTE 3050 297 -103 -16 invalid 5 interFreq LTE 100 38 -104 -13 invalid 6 interFreq LTE 100 59 -105 -14 invalid … … … … … … … …

For example, the priority of adjacent cells is an order for selecting adjacent cells for paging monitoring of the electronic device 101. As the priority of an adjacent cell is relatively higher, it may be selected relatively first. For example, the received signal strength of a neighboring cell may include a received signal strength indicator (RSSI) and/or reference signal received power (RSRP) of a signal received from the neighboring cell.

According to various embodiments, the electronic device (eg, the processor 120 or 200) may select the second cell in operation 407 based on the priorities of neighboring cells included in the neighboring cell list. As an example, the second cell may include a neighboring cell with the highest priority (e.g., a neighboring cell with priority '1' in Table 2) among neighboring cells included in the neighboring cell list related to the electronic device 101. .

According to various embodiments, the electronic device (eg, the processor 120 or 200) may perform camping to the second cell in operation 409. As an example, camping to a second cell may include a series of operations to synchronize time and/or frequency with the second cell based on a control message (eg, SSB) received from the second cell.

FIG. 5 is a flowchart 500 for selectively determining a cell for monitoring paging in an electronic device according to various embodiments. According to one embodiment, at least a portion of FIG. 5 may include detailed operations of operations 303 and 305 of FIG. 3 . In the following embodiments, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation may be changed, and at least two operations may be performed in parallel. For example, the electronic device of FIG. 5 may be the electronic device 101 of FIG. 1 or FIG. 2 .

According to various embodiments referring to FIG. 5, in operation 501, the electronic device (e.g., the processor 120 of FIG. 1 or the processor 200 of FIG. 2) connects the first cell (or You can check the wireless status information of the serving cell. According to one embodiment, when the electronic device 101 is in the RRC idle state or the RRC inactive state, the processor 200 performs measurements related to the first cell for a specified fourth period of time that comes periodically. The communication circuit 210 can be controlled to perform. The wireless state information of the first cell may include measurement results related to the first cell. In one example, a measurement related to a first cell may include a series of operations that monitor the frequency (or frequency band) of the first cell for a specified fourth time period.

According to various embodiments, the electronic device (e.g., the processor 120 or 200) may check whether the wireless status information of the first cell (or serving cell) satisfies a specified paging condition in operation 503. According to one embodiment, the processor 200 may determine whether a specified paging condition is satisfied based on the received signal strength of the first cell. For example, a state that satisfies a specified paging condition may include a state in which the received signal strength of the first cell is below the designated reference strength and the electronic device 101 is determined to be located in the weak electric field area of the first cell. . In one example, the designated reference intensity may include a reference intensity associated with an A2 event or a specified intensity (e.g., approximately -100 dBm).

According to one embodiment, the processor 200 may determine that a specified paging condition is satisfied based on detection of an error in wireless connection with the first cell. As an example, errors in the wireless connection with the first cell may include frequency errors, timing errors, and/or AGC drops. For example, the frequency error may represent a state in which the frequency error (e.g., frequency offset) for wireless communication with the first cell exceeds a specified reference frequency error value. As an example, timing error (or TTL error) may indicate a state in which the timing error for wireless communication with the first cell exceeds a specified reference timing error value. For example, AGC drop may indicate a state in which the AGC error for wireless communication with the first cell exceeds a specified reference AGC error value.

According to one embodiment, the processor 200 may determine whether a specified paging condition is satisfied based on the received signal strength and received signal quality of the first cell. For example, a state that satisfies a specified paging condition is that the received signal strength of the first cell exceeds the specified reference strength (e.g., about -100 dBm), but the received signal quality is below the specified reference quality (e.g., about -18 dBm), It may include a state in which interference occurs from at least one neighboring cell. For example, the received signal quality of a neighboring cell may include the RSRP of the signal received from the neighboring cell.

According to one embodiment, the processor 200 may determine whether a specified paging condition is satisfied based on the number of cell reselections of the electronic device 101 during the specified second time period. For example, a state that satisfies a specified paging condition means that the number of retransmissions of the electronic device 1010 during a specified second time period (e.g., about 1 minute) exceeds a specified reference number (e.g., about 5 times), thereby causing the electronic device ( 101) may include a state in which it is determined that it is located in the border area of the first cell.

According to one embodiment, the processor 200 may determine whether a specified paging condition is satisfied based on a reception failure rate of control messages and/or system information during a specified third time period. For example, a state that satisfies a specified paging condition may include a state in which the failure rate of reception of control messages and/or system information exceeds a specified reference failure rate (e.g., about 30%) for a specified third period of time. As an example, the reception failure rate of control messages and/or system information may include decoding BLER of P-RNTI, SI-RNTI, and PDSCH.

According to various embodiments, when the electronic device (e.g., the processor 120 or 200) determines that the wireless state information of the first cell (or serving cell) does not satisfy the specified paging condition (e.g., 'No' in operation 503 '), an embodiment for selectively determining a cell for monitoring paging may be ended. According to one embodiment, when the processor 200 determines that the wireless state information of the first cell (or serving cell) does not satisfy the specified paging condition, the electronic device 101 through the first cell (or serving cell) It can be determined that paging can be smoothly received. The processor 200 may determine that adding an adjacent cell for monitoring paging is unnecessary based on the determination that paging of the electronic device 101 can be smoothly received through the first cell (or serving cell).

According to various embodiments, when the electronic device (e.g., the processor 120 or 200) determines that the wireless state information of the first cell (or serving cell) satisfies the specified paging condition (e.g., 'Yes' in operation 503) ), in operation 505, a second cell may be selected from the neighboring cell list. According to one embodiment, the processor 200 may select the second cell based on the priorities of neighboring cells included in the neighboring cell list of the electronic device 101. As an example, the second cell may include a neighboring cell with the highest priority among neighboring cells included in the neighboring cell list related to the electronic device 101. For example, the priorities of neighboring cells included in the neighboring cell list of the electronic device 101 may be sorted based on wireless status information of the first cell that satisfies a specified paging condition.

According to various embodiments, the electronic device (eg, the processor 120 or 200) may perform camping to the second cell in operation 507. As an example, camping to a second cell may include a series of operations to synchronize time and/or frequency with the second cell based on a control message (eg, SSB) received from the second cell.

FIG. 6 is a flowchart 600 for selecting a neighboring cell for monitoring paging based on a specified paging condition of an electronic device according to various embodiments. According to one embodiment, at least a portion of FIG. 6 may include detailed operations of operation 505 of FIG. 5 . In the following embodiments, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation may be changed, and at least two operations may be performed in parallel. For example, the electronic device in FIG. 6 may be the electronic device 101 in FIG. 1 or 2 .

According to various embodiments referring to FIG. 6, when an electronic device (e.g., processor 120 of FIG. 1 or processor 200 of FIG. 2) satisfies a specified paging condition based on wireless status information of the first cell (For example, 'Yes' in operation 503 of FIG. 5), in operation 601, a variable for updating the priority of the neighboring cell list can be set based on the radio state information of the first cell that satisfies the specified paging condition. For example, the variable for updating the priority of the neighboring cell list may be set to the received signal strength of the neighboring cell when it is determined that the specified paging condition is satisfied based on the received signal strength of the first cell. For example, the variable for updating the priority of the neighboring cell list is set to the serving frequency and the received signal strength of the neighboring cell when it is determined that the specified paging condition is satisfied based on an error in the wireless connection with the first cell. You can. As an example, the serving frequency may represent the frequency of the first cell to which the electronic device 101 is connected. For example, the variable for updating the priority of the neighboring cell list is the serving frequency and the received signal strength of the neighboring cell when it is determined that the specified paging condition is satisfied based on the received signal strength and received signal quality of the first cell. can be set. For example, the variable for updating the priority of the adjacent cell list is the received signal strength of the adjacent cell when it is determined that the specified paging condition is satisfied based on the number of cell reselections of the electronic device 101 during the specified second time. It can be set to . For example, the variable for updating the priority of the neighboring cell list is the received signal strength of the neighboring cell when it is determined that the specified paging condition is satisfied based on the reception failure rate of the control message and / or system information during the designated third time. It can be set to .

According to various embodiments, in operation 603, the electronic device (e.g., the processor 120 or 200) determines a list of adjacent cells included in the adjacent cell list associated with the electronic device 101 based on a variable for updating the priority of the adjacent cell list. The priorities of adjacent cells can be set (or updated). According to one embodiment, when the processor 200 determines that a specified paging condition is satisfied based on the received signal strength of the first cell, priority is given to neighboring cells included in the neighboring cell list based on the received signal strength of the neighboring cell. You can set (or update) the ranking. For example, the priorities of neighboring cells may be set (or updated) relatively higher as the received signal strength is relatively high.

According to one embodiment, when a specified paging condition is satisfied based on an error in the wireless connection with the first cell, the processor 200 selects a neighboring cell included in the neighboring cell list based on the serving frequency and the received signal strength of the neighboring cell. You can set (or update) the priorities of cells. For example, among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using the same frequency as the serving frequency may be set lower than the priority of at least one neighboring cell using a different frequency from the serving frequency. You can. Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using a frequency different from the serving frequency may be set (or updated) based on the received signal strength of the neighboring cell.

According to one embodiment, when the processor 200 satisfies a specified paging condition based on the received signal strength and received signal quality of the first cell, the processor 200 includes the cell in the neighboring cell list based on the serving frequency and the received signal strength of the neighboring cell. You can set (or update) the priorities of adjacent cells. For example, among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell (e.g., intra cell) using the same frequency as the serving frequency is the priority of at least one neighboring cell using a frequency different from the serving frequency. It can be set lower than the priority. Among the neighboring cells included in the neighboring cell list, the priority of at least one neighboring cell using a frequency different from the serving frequency may be set (or updated) based on the received signal strength of the neighboring cell.

According to one embodiment, when the processor 200 satisfies a specified paging condition based on the number of cell reselections of the electronic device 101 during the specified second time, the processor 200 enters the adjacent cell list based on the received signal strength of the adjacent cell. The priorities of included adjacent cells can be set (or updated). For example, the priorities of neighboring cells may be set (or updated) relatively higher as the received signal strength is relatively high.

According to one embodiment, if the processor 200 satisfies a specified paging condition based on the reception failure rate of the control message and/or system information during the specified third time period, the processor 200 adds to the neighboring cell list based on the received signal strength of the neighboring cell. The priorities of included adjacent cells can be set (or updated). For example, the priorities of neighboring cells may be set (or updated) relatively higher as the received signal strength is relatively high.

According to various embodiments, a method of operating an electronic device (e.g., the electronic device 101 of FIG. 1 or 2) includes obtaining information related to a tracking area identifier (TAI) list from a first cell to which the electronic device is connected. It can be included. According to one embodiment, a method of operating an electronic device may include selecting a second cell that is different from the first cell to which the electronic device is connected from a list of adjacent cells related to the electronic device. According to one embodiment, a method of operating an electronic device may include camping to a second cell. According to one embodiment, a method of operating an electronic device may include checking identification information of a tracking area (TA) of the second cell based on camping into the second cell. According to one embodiment, a method of operating an electronic device may include monitoring a paging signal of the electronic device through the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list. You can.

According to various embodiments, a method of operating an electronic device may include generating a list of neighboring cells related to the electronic device. According to one embodiment, a method of operating an electronic device may include performing measurement related to neighboring cells included in a neighboring cell list. According to one embodiment, a method of operating an electronic device may include setting priorities of neighboring cells included in a neighboring cell list based on measurement results. According to one embodiment, the operation of selecting the second cell may include selecting the second cell from the neighboring cell list based on the priorities of neighboring cells.

According to various embodiments, a method of operating an electronic device may include checking whether a specified paging condition is satisfied based on wireless status information with the first cell. According to one embodiment, the operation of setting the priority may include setting the priority of the adjacent cells based on a determination that the specified paging condition is satisfied.

According to various embodiments, a method of operating an electronic device may include sending a paging signal of the electronic device through the first cell when camping to the second cell fails, or when identification information of the TA of the second cell is not included in the TAI list. It may include monitoring operations.

The embodiments of the present invention disclosed in the specification and drawings are merely presented as specific examples to easily explain the technical content according to the embodiments of the present invention and to aid understanding of the embodiments of the present invention, and do not limit the scope of the embodiments of the present invention. That's not what I want to do. Therefore, the scope of the various embodiments of the present invention should be interpreted as including all changes or modified forms derived based on the technical idea of the various embodiments of the present invention in addition to the embodiments disclosed herein.

Claims (20)

In electronic devices,
communication circuit, and
At least one processor operatively connected to the communication circuitry,
The at least one processor,
Obtaining information related to a tracking area identifier (TAI) list to a first cell to which the electronic device is connected through the communication circuit,
select a second cell different from the first cell from a list of neighboring cells associated with the electronic device;
Perform camping into the second cell,
Confirm identification information of a tracking area (TA) of the second cell based on camping in the second cell,
An electronic device that monitors a paging signal of the electronic device through the first cell and the second cell based on the identification information of the TA of the second cell being included in the TAI list.
According to clause 1,
The at least one processor,
generate a list of neighboring cells associated with the electronic device;
Perform measurements related to neighboring cells included in the neighboring cell list,
Setting priorities for neighboring cells included in the neighboring cell list based on the measurement results,
An electronic device that selects the second cell from the neighboring cell list based on the priorities of the neighboring cells.
According to clause 2,
The at least one processor,
Check whether specified paging conditions are satisfied based on wireless status information with the first cell,
An electronic device that selects the second cell from the neighboring cell list based on the priority of the neighboring cells based on the determination that the specified paging condition is satisfied.
According to clause 3,
The wireless status information with the first cell includes the received signal strength of the first cell, frequency error, timing error, received signal quality of the first cell, location or control message of the electronic device within the first cell An electronic device comprising at least one of the following:
According to clause 3,
The priority of neighboring cells included in the neighboring cell list is set based on wireless status information with the first cell that satisfies the specified paging condition.
According to clause 5,
The priority of neighboring cells included in the neighboring cell list is based on at least one of the received signal strength of the first cell, the location of the electronic device within the first cell, or the reception failure rate of the control message. An electronic device that is set based on the received signal strength of each neighboring cell when the conditions are met.
According to clause 5,
The priority of neighboring cells included in the neighboring cell list is determined by determining the signal to noise ratio (SNR) and received signal strength of each neighboring cell when the specified paging condition is satisfied based on the received signal quality of the first cell. An electronic device set based on .
According to clause 5,
The priority of neighboring cells included in the neighboring cell list is the frequency of the first cell and the received signal strength of each neighboring cell when the specified paging condition is satisfied based on the frequency error and/or the timing error. An electronic device set based on .
According to clause 2,
The identification information of the TA of the second cell includes a tracking area code (TAC).
According to clause 1,
The at least one processor,
An electronic device that monitors a paging signal of the electronic device through the first cell when camping to the second cell fails, or when identification information of the TA of the second cell is not included in the TAI list.
In a method of operating an electronic device,
Obtaining information related to a tracking area identifier (TAI) list from a first cell to which the electronic device is connected;
selecting a second cell different from the first cell from a list of adjacent cells associated with the electronic device;
An operation of performing camping to the second cell;
An operation of checking identification information of a tracking area (TA) of the second cell based on camping into the second cell; and
A method comprising monitoring a paging signal of the electronic device through the first cell and the second cell based on identification information of the TA of the second cell being included in the TAI list.
According to clause 11,
generating a list of neighboring cells associated with the electronic device;
An operation of performing measurement related to neighboring cells included in the neighboring cell list; and
Further comprising setting priorities of neighboring cells included in the neighboring cell list based on the measurement result,
The operation of selecting the second cell is,
A method comprising selecting the second cell from the neighboring cell list based on the priorities of the neighboring cells.
According to clause 12,
Further comprising the operation of checking whether a specified paging condition is satisfied based on wireless status information with the first cell,
The operation of setting the priority is,
A method comprising setting priorities of the adjacent cells based on a determination that the specified paging condition is satisfied.
According to clause 13,
The wireless status information with the first cell includes the received signal strength of the first cell, frequency error, timing error, received signal quality of the first cell, location or control message of the electronic device within the first cell A method that includes at least one of the following:
According to clause 13,
A method in which the priority of neighboring cells included in the neighboring cell list is set based on radio state information with the first cell that satisfies the specified paging condition.
According to clause 15,
The priority of neighboring cells included in the neighboring cell list is based on at least one of the received signal strength of the first cell, the location of the electronic device within the first cell, or the reception failure rate of the control message. If the conditions are met, the method is set based on the received signal strength of each neighboring cell.
According to clause 15,
The priority of neighboring cells included in the neighboring cell list is determined by determining the signal to noise ratio (SNR) and received signal strength of each neighboring cell when the specified paging condition is satisfied based on the received signal quality of the first cell. How it is set based on .
According to clause 15,
The priority of neighboring cells included in the neighboring cell list is the frequency of the first cell and the received signal strength of each neighboring cell when the specified paging condition is satisfied based on the frequency error and/or the timing error. How it is set based on .
According to clause 12,
A method wherein the identification information of the TA of the second cell includes a tracking area code (TAC).
According to clause 11,
If camping to the second cell fails, or the identification information of the TA of the second cell is not included in the TAI list, further comprising monitoring the paging signal of the electronic device through the first cell. method.

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