Device to device (D2D) communication can be performed with packet data convergence protocol (PDCP) based encapsulation without internet protocol (IP) addressing. The non-IP D2D PDCP-encapsulated communication can further include two forms of secure data transfer. A first non-IP D2D PDCP-encapsulated communication can be a negotiated non-IP D2D PDCP-encapsulated communication. A second non-IP D2D PDCP-encapsulated communication can be a non-negotiated non-IP D2D communication. The non-negotiated non-IP D2D PDCP-encapsulated communication can include a common key management server (KMS) version and a distributed KMS version. The encapsulated communication can be used with various protocols, including a PC5 protocol (such as the PC5 Signaling Protocol) and wireless access in vehicular environments (WAVE) protocols.

The present disclosure relates to a communication technique for converging a 5G communication system for supporting a higher data rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure can be applied to intelligent services on the basis of a 5G communication technology and an IoT-related technology (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety-related service, and the like). The present invention provides a method for enhancing data security, comprising: when a request message including information related to a first privacy level is received from a user device, authenticating the user device; when the user device is an authenticated device as a result of the authentication, verifying the information related to the first privacy level; and when the verification of the information related to the first privacy level is completed, transmitting, to the user device, an image processed on the basis of the first privacy level among images processed on the basis of a plurality of privacy levels.

A method and apparatus may receive policy information from a network. The policy information indicates at least one preferred radio-access-technology for a service. The method may also include entering a coverage area of the at least one preferred radio-access-technology. The method may also include detecting that the service corresponding to the at least one preferred radio-access-technology is offered in the coverage area. The method may also include initiating a request for setup of the detected service.

A communications device transmitting/receiving signals to/from a mobile communications network includes one or more network elements providing a wireless access interface for the communications device. The wireless access interface includes plural communications resource elements across a host frequency range of a host carrier, and a first section of the communications resources within a first frequency range for preferable allocation to reduced capability devices forming a first reduced bandwidth carrier and a second section of the communications resources within a second frequency range for preferable allocation to the reduced capability devices forming a second reduced bandwidth carrier. Each of the first and second frequency ranges is within the host frequency range. The communications device is configured with a reduced capability to receive the signals only within a frequency bandwidth less than the host frequency range and equal to at least one of the first frequency range or the second frequency range.

A communications device transmitting/receiving signals to/from a mobile communications network includes one or more network elements providing a wireless access interface for the communications device. The wireless access interface includes plural communications resource elements across a host frequency range of a host carrier, and a first section of the communications resources within a first frequency range for preferable allocation to reduced capability devices forming a first reduced bandwidth carrier and a second section of the communications resources within a second frequency range for preferable allocation to the reduced capability devices forming a second reduced bandwidth carrier. Each of the first and second frequency ranges is within the host frequency range. The communications device is configured with a reduced capability to receive the signals only within a frequency bandwidth less than the host frequency range and equal to at least one of the first frequency range or the second frequency range.

Provided are a method for performing, by a terminal, transmission power control in a wireless communication system, and a terminal using the method. The method is characterized by independently calculating first transmission power for wide area network (WAN) transmission performed in a first carrier wave, and second transmission power for transmission according to a device-to-device (D2D) operation performed in a second carrier wave, and reducing the second transmission power if the sum of the first transmission power and the second transmission power is greater than the maximum supported power of the terminal.

An arrangement for monitoring an aseptic manufacturing process includes product condition sensors capable of making closely spaced measurements of a product condition such as temperature or humidity. The measurements are made using closely spaced sensors arranged in a linear array on a single probe, which may be used to take measurements at multiple levels within the product. Data from the sensors is transmitted to a data collection point via short range wireless digital communications. The sensors may be used to measure temperature and humidity at a single point. For example, when the sensors are used in pharmaceutical freeze drying, the location of a sublimation front may be calculated for each vial, and the freeze drying process may be controlled using the data.

A communication method according to an embodiment comprises: broadcasting, from a base station to a user terminal, a system information block (SIB) including information for identifying an extended system frame number incremented by 1 when a system frame number (SFN) is returned to an initial value after reaching a maximum value; receiving, by the user terminal, the system information block from the base station; and using, by the user terminal in an idle, the extended system frame number identified by the information in order to determine a paging frame including a timing at which a paging is monitored by an extended DRX (eDRX).

A subscriber issues a message to a resource host to request subscription to multiple resources. This message may indicate identifiers of these resources, event notification criteria for each individual resource and define cross-resource notification criteria such as time window type and time window size. The resource host issues cross-resource notifications to the subscriber or its designated notification targets when expected changes on the target resources occur within a time window.

A subscriber issues a message to a resource host to request subscription to multiple resources. This message may indicate identifiers of these resources, event notification criteria for each individual resource and define cross-resource notification criteria such as time window type and time window size. The resource host issues cross-resource notifications to the subscriber or its designated notification targets when expected changes on the target resources occur within a time window.