KR20200019075A - Method and apparatus for discovering and selecting private cellular network by a terminal - Google Patents

Abstract

The present disclosure relates to a communication technique for fusing a 5G communication system with an IoT technology to support a higher data transmission rate than that of a 4G system, and a system thereof. The present disclosure can be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security- and safety-related services, etc.) based on a 5G communication system and an IoT-related technology. In the present invention, disclosed are a method of a terminal for discovering and selecting a private network, and an apparatus thereof. A control signal management method in a wireless communication system comprises the steps of: receiving a first control signal transmitted from a base station; processing the received first control signal; and transmitting a second control signal generated based on the processing to the base station.

Description

METHOD AND APPARATUS FOR DISCOVERING AND SELECTING PRIVATE CELLULAR NETWORK BY A TERMINAL}

The present invention relates to a cellular communication system, and more particularly, to a method and apparatus for a terminal to discover and select a private cellular network.

In order to meet the increasing demand for wireless data traffic since the commercialization of 4G communication system, efforts are being made to develop an improved 5G communication system or a pre-5G communication system. For this reason, a 5G communication system or a pre-5G communication system is called a system after a 4G network (Beyond 4G Network) or a system after an LTE system (Post LTE).

In order to achieve high data rates, 5G communication systems are being considered for implementation in the ultra-high frequency (mmWave) band (eg, such as the 60 Gigabit (60 GHz) band). In order to mitigate the path loss of radio waves in the ultra-high frequency band and to increase the transmission distance of radio waves, beamforming, massive array multiple input / output (Full-Dimensional MIMO) and FD-MIMO in 5G communication systems Array antenna, analog beam-forming, and large scale antenna techniques are discussed.

In addition, in order to improve the network of the system, 5G communication systems have advanced small cells, advanced small cells, cloud radio access network (cloud RAN), ultra-dense network (ultra-dense network) , Device to Device communication (D2D), wireless backhaul, moving network, cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation The development of such technology is being done.

In addition, in 5G systems, Hybrid FSK and QAM Modulation (FQAM) and sliding window superposition coding (SWSC), Advanced Coding Modulation (ACM), and FBMC (Filter Bank Multi Carrier) and NOMA (non orthogonal multiple access), and sparse code multiple access (SCMA), and the like are being developed.

Meanwhile, the Internet is evolving from a human-centered connection network where humans create and consume information, and an Internet of Things (IoT) network that exchanges and processes information between distributed components such as things. Internet of Everything (IoE) technology, in which big data processing technology through connection with cloud servers and the like, is combined with IoT technology, is also emerging. In order to implement the IoT, technical elements such as sensing technology, wired / wireless communication and network infrastructure, service interface technology, and security technology are required, and recently, a sensor network for connection between things, a machine to machine , M2M), Machine Type Communication (MTC), etc. are being studied. In the IoT environment, intelligent Internet technology (IT) services that can create new value in human life by collecting and analyzing data generated from connected objects can be provided. IoT is a field of smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliances, advanced medical services, etc. through convergence and combination of existing information technology (IT) technology and various industries. It can be applied to.

Accordingly, various attempts have been made to apply the 5G communication system to the IoT network. For example, technologies such as sensor network, machine to machine (M2M), machine type communication (MTC), and the like, are implemented by techniques such as beamforming, MIMO, and array antennas. It is. Application of cloud radio access network (cloud RAN) as the big data processing technology described above may be an example of convergence of 5G technology and IoT technology.

For privately operated private communication networks such as the provision of communication services in smart factories, it is considered to operate a private cellular network configured locally separately from a general public cellular network. In this case, in order for a terminal to use a private cellular network to access and register a private cellular network and use a network, the terminal must first discover and select a private communication network. In addition, this requires an identification scheme for a private communication network.

For privately operated private communication networks, such as the provision of communication services in smart factories, it is considered to operate a private cellular network configured locally separately from a general public cellular network. In this case, in order for a terminal to use a private cellular network to access and register a private cellular network and use a network, the terminal must first discover and select a private communication network. In addition, this requires identification of private networks.

Private cellular networks are type A type private cellular networks operated by public cellular network operators in connection with public cellular networks and type B types independently operated by private cellular networks independent of public cellular networks according to their operation. There is a cellular network. Since the method of discovering and selecting a network may vary according to the type of private cellular network, the present invention introduces an identification scheme for each private cellular network, and the terminal discovers a private cellular network, and the found cellular network. Introduce how to choose. In addition, a method for restricting access to a private cellular network by terminals using a general public cellular network is also introduced.

In the description of the present invention, a private cellular network uses a private network or a non-public network as needed in the same sense, and a private network ID and a non-public network ID are also used in combination. In addition, Type B cellular network is used interchangeably with standalone non-public network.

In order to solve the above problems, the present invention provides a method of processing a control signal in a wireless communication system, the method comprising: receiving a first control signal transmitted from a base station; Processing the received first control signal; And transmitting a second control signal generated based on the processing to the base station.

According to the conventional method, when using a communication service through a public cellular network, the cellular network is identified through a mobile country code (MCC) and a mobile network code (MCC) value or a public land mobile network (PLMN) ID. . However, in the case of Type A private cellular network, additional information such as ID of the private cellular network allocated by the service provider as well as public cellular network information linked together is necessary for network identification. Type B private cellular networks operate separately from public cellular networks, so an identifier for a public cellular network operator is not required, but additional information may be required, depending on local regulatory policies. The present patent proposes an identification method for the private cellular networks of Type A and Type B, through which a terminal discovers a private cellular network and accesses the discovered private cellular network, and also attempts to access a general public cellular network. By controlling the access of the terminal to prevent the waste of communication resources of the private cellular network, it is effective to operate the private cellular network stably.

1 is a diagram illustrating a private communication network structure of Type B type.
FIG. 2 is a diagram illustrating a structure of a type A private network.
3 is a diagram illustrating an identification scheme for a private communication network.
4 is a diagram illustrating an operation of a terminal that discovers a private communication network and selects a corresponding private communication network.
5 is a diagram illustrating a method of restricting access of a general terminal connecting to a public communication network through a base station of a private communication network.
6 is a diagram illustrating an operation of a terminal selected from a standalone non-public network.
7 is a diagram illustrating a structure of a terminal according to an exemplary embodiment.
8 is a diagram illustrating the structure of a base station according to the proposed embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted.

In describing the embodiments herein, descriptions of technical contents that are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly communicate without obscure the subject matter of the present invention by omitting unnecessary description.

For the same reason, in the accompanying drawings, some components are exaggerated, omitted or schematically illustrated. In addition, the size of each component does not reflect the actual size entirely. The same or corresponding elements in each drawing are given the same reference numerals.

Advantages and features of the present invention, and methods of achieving the same will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments are only provided to complete the disclosure of the present invention and to provide general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

At this time, it will be understood that each block of the flowchart illustrations and combinations of flowchart illustrations may be performed by computer program instructions. Since these computer program instructions may be mounted on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, those instructions executed through the processor of the computer or other programmable data processing equipment may be described in the flow chart block (s). It will create means to perform the functions. These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operating steps may be performed on the computer or other programmable data processing equipment to create a computer-implemented process to create a computer or other programmable data. Instructions for performing the processing equipment may also provide steps for performing the functions described in the flowchart block (s).

In addition, each block may represent a portion of a module, segment, or code that includes one or more executable instructions for executing a specified logical function (s). It should also be noted that in some alternative implementations, the functions noted in the blocks may occur out of order. For example, the two blocks shown in succession may in fact be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending on the corresponding function.

In this case, the term '~ part' used in the present embodiment refers to software or a hardware component such as an FPGA or an ASIC, and '~ part' plays certain roles. However, '~' is not meant to be limited to software or hardware. '~ Portion' may be configured to be in an addressable storage medium or may be configured to play one or more processors. Thus, as an example, '~' means components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, procedures, and the like. Subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functionality provided within the components and the '~' may be combined into a smaller number of components and the '~' or further separated into additional components and the '~'. In addition, the components and '~' may be implemented to play one or more CPUs in the device or secure multimedia card.

1 is a diagram illustrating a structure of a type B private network.

Referring to FIG. 1, the type B type private network structure is the same as that of a public cellular network. That is, the terminal accesses the 5G core network through 3gpp access, that is, 5G RAN, and the core network manages the AMF which is responsible for mobility management and registration management of the terminal, AUSF which is responsible for authentication of the terminal, and UDM managing sessions, and session management. There are entities such as SMF in charge of, and UPF for forwarding user data. However, a scheme such as identity for the terminal and authentication for the terminal may be different from that in the public cellular network.

In addition, a connection to an external Internet network may be possible depending on a private communication network, and a firewall may be installed to provide safety from an external connection.

FIG. 2 is a diagram illustrating a structure of a private network of Type A type.

Referring to FIG. 2, the Type A type private network structure is a structure in which a public cellular network is interworked, and corresponds to a case where a private communication network and a public cellular network are managed by the same carrier. That is, the terminal accesses the 5G core network through 3gpp access, that is, 5G RAN, and the core network manages the AMF which is responsible for mobility management and registration management of the terminal, AUSF which is responsible for authentication of the terminal, and UDM managing sessions, and session management. It can be composed of the same entities as a public cellular network such as an SMF that is in charge of, and an UPF that forwards user data. The private cellular network can be linked with the public cellular network, so that the private cellular network and the public cellular network can be linked like a roaming network. Therefore, when a terminal accessing a private cellular network is subscribed to the public cellular network, a method such as identity for the terminal and authentication for the terminal may be used as the public cellular network, or a separate terminal identity and A separate authentication method can also be used.

On the other hand, if the terminal accessing the private cellular network is not subscribed to the public cellular network, separate identity for the terminal and separate authentication for the terminal, as in the case of the Type B type private communication network of FIG. Use the same method.

3 is a diagram illustrating a terminal identification method for a private cellular network according to an embodiment of the present invention.

The 5G-RAN 1c-200 broadcasts identification information on a private cellular network that it is serving through a system information block (SIB) message. For example, an SIB # 1 message conveys an identification number for a private cellular network. The terminal may receive identification information on the private cellular network from the SIB # 1 message, and may determine whether the private cellular network should be selected by the UE.

In one embodiment of the identification method, the information PLMN ID (ie, MCC and MNC) of the operator network corresponding to the case where the private cellular network is Type A type and the identifier private network ID of the private network allocated by the operator are used as identification information. (1c-201). In this case, the SIB # 1 may further include a private usage indicator indicating a use of a private network or a private network Type A indicator indicating a type A private network. On the other hand, if the private cellular network is of type B, the private network type B indicator indicating that it is a type B private network together with the private network ID of the private network randomly assigned by the operator of the private cellular network or assigned from local regulation is used as identification information. Use (1c-202). Meanwhile, when the terminal receives a private usage indicator or a private network Type A indicator from the information broadcast through the SIB message, or receives a private network ID together with a PLMN ID, the 5G-RAN is a type A private cellular network. It can also recognize the private cellular network served by 5G-RAN through PLMN ID + private network ID (1c-101).

 As another embodiment of the identification method, the private cellular network may use the MCC information, the MNC information, and the private network ID of the private network as identification information (1c-211).

In this case, the local regulator of the MCC area assigns a specific MNC value to a value representing a private network for type B use and does not assign it to a general public cellular network provider.

For example, in Korea where MCC = '450', MNC = '000' may be assigned as a value for a private network for type B use. A private network ID randomly set by a private network manager or a private network ID allocated from a local regulator may be used as identification information of a private network for type B use.

Here, MNC values for type B can be assigned to local regulators according to private network usage, and these values can not be assigned to general public cellular network operators.

As another embodiment of the identification method, a specific MCC value or MNC value that is not assigned to a general public cellular network operator regardless of location may be used as an indication indicating a private network for type B use. For example, if the MCC value is set to 999, the terminal may recognize that the cellular network is a private network for type B use, that is, a standalone non-public network, so that MCC = 999 is indicated for the standalone non-public network. Can be used as The MNC value may be arbitrarily set by a private network operator, a value set by a local regulator or a standard for a standalone non-public network, or a value inferred through a private network ID is used as the MNC value. For example, you can set a partial value of a private network ID or a hash value of a private network ID as an MNC value. In this case, the private cellular network may use a combination of PLMN ID information allocated for the private network and an identifier private network ID of the private network as identification information for the private network.

In the case of Type A type, the information PLMN ID (ie, MCC and MNC) of the corresponding provider network and the private network ID of the private network allocated by the provider may be used as identification information.

In this document, when ID information about a private network is broadcasted through a SIB message, a SIB message that delivers a PLMN ID, that is, an MCC value and an MNC value, and a SIB message that delivers a private network ID have the same SIB message or different SIB messages. It may be delivered through.

On the other hand, the terminal receives the MCC and MNC value from the information broadcast through the SIB message to check whether the MNC value assigned for Type B use in the country using the MCC (1c-111), or the received It is possible to determine whether the MCC value or the MNC value is a value assigned for type B use (1c-121) to determine whether it is a type A private network or a type B private network, and also MCC + MNC + private network ID. Through the 5G-RAN to identify the private cellular network (1c-111, 1c-121).

Further, when the received MCC value is 999, the terminal recognizes that it is a type B use, and the terminal identifies the private cellular network through the MNC value or the private network ID.

The terminal identifying the type of the private network through the identification procedure determines the user's ID and network authentication method to be used in the future private network registration step.

4 is a diagram illustrating an operation sequence of a terminal that discovers a private communication network and selects a corresponding private communication network according to an embodiment of the present invention.

The 5G-RAN of the private cellular network broadcasts identification information on the private cellular network that it is servicing through a system information block (SIB) message, etc., and the terminal receives the identification information (1d-201).

The terminal can identify the private communication network through the method of the embodiment of FIG. 3 (1d-101). The terminal knows whether the private communication network can be used through identification information of the subscribed private network stored in the USIM or secure storage for the private NW, for example, MCC + MNC + private network ID. When the private communication network is available, in the automatic selection mode, the terminal can determine whether to select the corresponding private network by checking the preferred private & public network selection list stored in the secure storage for USIM or private NW (1d- 103). The preferred private & public network selection list is a list indicating a priority for selection of any one of available private cellular networks and public cellular networks found by the terminal. If the communication network has the highest priority, it operates to select the private communication network (1d-103).

When the priority of the found private communication network is the highest, the terminal may change the manner of connecting to the private communication network according to the type of the private communication network.

That is, when the private communication network is a Type A type, whether the terminal is joined to the public cellular network managing the private communication network or the public cellular network which has a roaming agreement with the public cellular network managing the private communication network. It is determined whether or not it is subscribed (1d-104). If the user is assigned to the public cellular network or the public cellular network with roaming agreement, or the UE ID issued by the public cellular network with roaming agreement, e.g. In this case, the terminal may perform registration with the private communication network. In this case, the terminal may register with the private communication network by using a UE ID assigned by the public cellular network to which it is subscribed, for example, SUPI or SUCI.

On the other hand, the private communication network is Type B type or Type A type, and the terminal is not subscribed to the public cellular network managing the private communication network, and there is no roaming agreement with the public cellular network to which the terminal is subscribed. When the terminal joins or cannot access the public cellular network that has issued the UE ID, for example, SUPI, the terminal selects the private communication network or switches to manual selection mode to display a value or information set by the user or the user. It may be possible to determine whether to select the private network through (1d-105). On the other hand, the terminal may alert the user that the service may be stopped by selecting the private communication network when the user is currently connected to the public cellular network (1d-106). When the private communication network is selected, the terminal may perform deregistration from the public cellular network in the case where it is registered in the public cellular network (1d-107). When the terminal registers with the private network, the terminal may perform registration with the private network using a Private Network UE ID which is a subscriber ID allocated for a private cellular network subscriber (1d-109). .

Alternatively, instead of the private Network UE Id, the SUPI value, which is the subscriber ID assigned in the public cellular network to which the terminal is subscribed, may be used without encryption. In addition, according to an encryption rule shared between the terminal and the private cellular network while the terminal joins the private cellular network, the SUPI value, which is the subscriber ID assigned in the public cellular network to which the terminal is subscribed, is encrypted as the ID of the terminal. Registration can be performed in the private communication network (1d-109).

 5 is a diagram illustrating a method of restricting access of a general terminal connecting to a public communication network through a base station of a private communication network according to an embodiment of the present invention.

The base station 5G-RAN (1e-200) may be connected to the core network (1e-400) of the public cellular network in addition to the core network (1e-300) of the private cellular network. In this case, a general terminal accessing the public cellular network may also attempt to access the base station. On the other hand, when the base station is connected only to the core network of the private cellular network, a general terminal accessing the public cellular network should prevent attempts to access the base station.

For this purpose, when the base station 5G-RAN (1e-200) is connected to both the core network (1e-300) of the private cellular network and the core network (1e-400) of the public cellular network as in the former case (1e-201). In addition, the base station may broadcast an indication for indicating that access to both a private network and a public network is possible in the SIB message. For example, set the Connected CN type to “both” (1e-202). Alternatively, identification of the public network and the private network, that is, PLMN ID (s) and PLMN ID + NID (s) may be included in the SIB message and broadcasted together. When the SIB message is received, the general terminal accessing the public cellular network may access the base station even if the base station knows that the 5G-RAN is for the private cellular network.

On the other hand, when the base station 5G-RAN (1e-200) is connected only to the core network (1e-300) of the private cellular network (1e-211) as in the latter case, the base station is connected CN in addition to the identification information of the private cellular network. Do not set the type to “private NW only” or do not include the connected CN type in the SIB message (1e-212).

Meanwhile, when the terminal accesses the private cellular network, the terminal includes a private network access indicator indicating that the terminal accesses the private cellular network in an RRC setup message (1e-111). For example, a private network access indicator may be a PLMN ID + NID or an NID or PLMN ID + CAG ID or CAG ID or an indication defined separately.

Accordingly, when the base station does not receive the private network access indicator from the terminal in step 1e-213, it is recognized that the general terminal accessing the public cellular network is connected and rejects the RRC setup (1e-213). Send RRC reject message. At this time, it may include a cause indicating that the general terminal connecting to the public cellular network is not accessible. (1e-214)

The general terminal receiving the reject message does not attempt to access the 5G-RAN for a predetermined period (1e-112).

According to another embodiment of the present invention, when the base station 5G-RAN (1e-200) is connected to the core network (1e-300) of the private cellular network (1e-201), the base station is network information for the private network PLMN ID + NID (network ID) or PLMN ID + CAG ID (closed access group ID) is included in the SIB message to broadcast. At this time, the base station should be limited so that access to the private network is impossible in the case of a terminal that does not have a non-public network (NPN) function, such as a legacy terminal.

To this end, the base station includes a cell-reserved-other-use bit in the SIB message to prevent access of the legacy terminal, so that the legacy terminal attempts to access the base station by not attempting to access the corresponding base station. Do not do it. The cell-reserved-other-use bit is applied to all PLMNs and NPNs serviced by the base station. That is, when the cell-reserved-other-use bit is set to true (or false), the legacy terminal does not attempt to access all PLMNs or NPNs serviced by the base station.

Meanwhile, the base station includes a cell-reserved-another-use bit for each PLMN or NPN in a SIB message to prevent a terminal without an NPN from accessing a specific NPN provided by the base station. It is possible to use a scheme not to attempt to access the base station for the PLMN or NPN. The cell-reserved-another-use bit is allocated for each PLMN ID, PLMN ID + NID, or PLMN ID + CAG ID serviced by the base station, and the value is applied for each PLMN or NPN. That is, when the cell-reserved-another-use bit is set to true (or false), the terminal without the NPN function for the corresponding PLMN or NPN does not attempt to access.

6 is a diagram illustrating an operation of a terminal selected from a standalone non-public network according to an embodiment of the present invention.

When using a specific MCC value not assigned to a general public cellular network operator as an indication of a type B private network, that is, a standalone non-public network, the base station 1f-200 is connected to the N2 connection with the standalone non-public network. During the setup process, the identification of the standalone non-public network, for example, the MCC value and the MNC value to be mapped to the private network ID or the non-public network ID (NPN ID) is transmitted to the AMF of the standalone non-public network. (1f-201) The MCC value uses, for example, a value of 999 indicating that it is a non-public network, and the MNC value is a random selection of an MNC value not used in a nearby non-public network or a standalone non- Select the value set by the local regulator for the public network, or select the value inferred through the private network ID as the MNC value. For example, you can select a partial value of the private network ID or a hash value of the private network ID as the MNC value.

At this time, the private network operator selects the MCC value and the MNC value to use the same value in all RANs of the standalone non-public network. The AMF (1f-300) of the non-public network stores a mapping between the non-public network ID and the received MCC + MNC value, and assigns a value corresponding to the PLMN ID part when allocating a GUAMI value or 5G GUTI value. The received MCC value and MNC value are used. In addition, the received MCC value and MNC value are used as a value corresponding to the PLMN ID part included in the tracking area identification (TAI). (1f-302)

Meanwhile, the base station 1f-200 broadcasts an MCC value 999, the selected MNC value, and a non-public network ID supported by the base station through an SIB message.

The broadcast message may be delivered through different SIB messages. For example, the MCC value 999 and the MNC value abc are delivered in the SIB # 1 message (1f-202), and the non-public network ID value may be delivered in another SIB #xx message.

When the terminal receives the MCC 999 broadcasted by the base station, it recognizes that the corresponding non-public network is standalone and waits for the non-public network ID value broadcasted by the base station. (1f-101)

When the terminal receiving the MCC 999 already knows the MNC value broadcasted by the base station, the terminal may not use the non-public network ID value in performing cell selection and reselection.

The terminal knows the MNC value broadcasted by the base station, when the base station obtains a mapping of the non-public network ID and MCC + MNC value through the value broadcasted by the base station, or the base station from the non-public network ID The UE may already know how to obtain the MNC value, or the MCC + MNC value for the non-public network allocated by the local regulator may be publicly known. If the base station supports a standalone non-public network from the MCC and MNC values broadcasted as described above, and the MCC + MNC values for the non-public network to which the terminal is subscribed are the same, the terminal does not wait for the non-public network ID value. Instead, cell registration and network selection procedures may be performed to attempt registration with the non-public network. In this case, the UE includes the MCC + MNC value received by the UE in the RRC message 1f-103 and the N2 message 1f-205. In addition, the RRC message 1f-103 and the N2 message 1f-205 include a non-public network ID or a non-public network ID in a registration request message. You can check whether your non-public network is correct.

After receiving the non-public network ID broadcast after step 1f-101, the terminal acquires and stores a mapping between the non-public network ID and the MCC + MNC value, and the terminal subscribed to the non-public network includes cell selection and Cell reselection and network selection are performed. (1f-102) The terminal that selects the non-public network attempts registration. In this case, the UE includes the MCC + MNC value received by the UE in the RRC message 1f-103 and the N2 message 1f-205. In addition, the RRC message 1f-103 and the N2 message 1f-205 include a non-public network ID or a non-public network ID in a registration request message. You can check whether your non-public network is correct.

The base station receiving the registration request message included in the RRC message 1f-103 refers to the GUAMI or MCC + MNC value received from the terminal and forwards the received registration request message to the AMF of the corresponding non-public network. (1f-204)

7 is a diagram illustrating a structure of a terminal according to an embodiment of the present invention.

Referring to FIG. 7, the terminal may include a transceiver, a terminal controller, and a storage. In the present invention, the terminal controller may be defined as a circuit or an application specific integrated circuit or at least one processor.

The transceiver may transmit and receive signals with other network entities. The transceiver may, for example, receive system information from a base station, and may receive a synchronization signal or a reference signal.

The terminal controller can control the overall operation of the terminal according to the embodiment proposed by the present invention. For example, the terminal controller can control a signal flow between blocks to perform an operation according to the above-described drawings and flowcharts. In detail, the terminal controller may operate to identify and select a private communication network to access the network.

The storage unit may store at least one of information transmitted and received through the transceiver and information generated by the terminal controller.

8 is a diagram illustrating a structure of a base station according to an embodiment of the present invention.

Referring to FIG. 8, the base station may include a transceiver, a base station controller, and a storage unit. In the present invention, the base station controller may be defined as a circuit or application specific integrated circuit or at least one processor.

The transceiver may transmit and receive signals with other network entities. For example, the transceiver may transmit system information to the terminal and may transmit a synchronization signal or a reference signal.

The base station controller can control the overall operation of the base station according to the embodiment proposed by the present invention. For example, the base station controller may control the signal flow between blocks to perform an operation according to the above-described drawings and flowcharts. Specifically, the base station controller may include the information for controlling whether the terminal is connected according to the type of cellular network to which the base station is connected, and transmit the SIB message.

The storage unit may store at least one of information transmitted and received through the transceiver and information generated through the base station controller.

The embodiments disclosed in the specification and the drawings above are merely presented specific examples to easily explain the contents of the present invention and help understanding thereof, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be construed that all changes or modifications derived based on the technical idea of the present invention are included in the scope of the present invention in addition to the embodiments disclosed herein.

Claims (1)

In the control signal processing method in a wireless communication system,
Receiving a first control signal transmitted from a base station;
Processing the received first control signal; And
And transmitting the second control signal generated based on the processing to the base station.

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