One embodiment of the present invention relates to a method whereby a terminal performs an operation related to public land mobile network (PLMN) selection related to ProSe direct communication in a wireless communication system, the method for performing an operation related to PLMN selection comprising the steps of: selecting a first PLMN; performing registration with the first PLMN; and selecting a second PLMN in case of failure to register with the first PLMN, wherein when selecting the second PLMN, the terminal treats a list that did not include the first PLMN at the time of selecting the first PLMN as if the list has included the first PLMN.

One embodiment of the present invention relates to a method whereby a terminal performs an operation related to public land mobile network (PLMN) selection related to ProSe direct communication in a wireless communication system, the method for performing an operation related to PLMN selection comprising the steps of: selecting a first PLMN; performing registration with the first PLMN; and selecting a second PLMN in case of failure to register with the first PLMN, wherein when selecting the second PLMN, the terminal treats a list that did not include the first PLMN at the time of selecting the first PLMN as if the list has included the first PLMN.

A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

The present disclosure provides a method for supporting UE access control. A base station is informed by a ProSe Function via a MME or informed by the MIME of information indicating whether a UE is authorized for a D2D service. The base station performs an access control to the UE according to the information indicating whether the UE is authorized for the D2D service. The present disclosure further provides a method in which a source base station informs a target base station of the information indicating whether the UE is authorized for a D2D service. The target base station performs an access control according to the information.

The present disclosure provides a method for supporting UE access control. A base station is informed by a ProSe Function via a MME or informed by the MIME of information indicating whether a UE is authorized for a D2D service. The base station performs an access control to the UE according to the information indicating whether the UE is authorized for the D2D service. The present disclosure further provides a method in which a source base station informs a target base station of the information indicating whether the UE is authorized for a D2D service. The target base station performs an access control according to the information.

A location management device function is provided in an access network, and a base station identifies and authenticates a terminal device permitted to perform base station loopback communication on the basis of identification information on the terminal device received from the terminal device. With this configuration, provided is a communication control method and the like for the base station device that has lost connectivity to a core network, to permit only specific terminals to perform base station loopback communication.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) communication including first downlink control information (DCI) that grants resources for a dedicated control physical downlink shared channel (PDSCH) communication. The UE may receive the dedicated control PDSCH communication, wherein the dedicated control PDSCH includes second DCI. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical downlink control channel (PDCCH) communication including first downlink control information (DCI) that grants resources for a dedicated control physical downlink shared channel (PDSCH) communication. The UE may receive the dedicated control PDSCH communication, wherein the dedicated control PDSCH includes second DCI. Numerous other aspects are described.

Systems and methods provide user equipment (UE) access parameters for access control when, for example, the UE is accessing a non-public network, the UE is accessing a private slice in a public land mobile network (PLMN), the UE is accessing a non-public network for PLMN service, and/or the UE is accessing a private slice in a PLMN for a non-public network service.