摘要:
The present disclosure relates to a communication technique and system for converging, with IoT technology, a 5G communication system for supporting a higher data transmission rate beyond a 4G system. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cards, health care, digital education, retail business, security and safety related services, etc.), on the basis of the 5G communication technology and IoT associated technology. According to the present invention, in a method of receiving a MAC PDU, when an unused value is included in a received MAC PDU, the MAC PDU is received through a multicast channel, and the unused value is included in a sub-header of the MAC PDU, the sub-header and a payload portion corresponding to the sub-header are ignored and the remaining sub-header and payload portion are processed.
摘要:
A System Frame Number (SFN) acquisition method is provided. The System Frame Number (SFN) acquisition method of a terminal according to the present invention includes receiving a first message for adding a secondary cell of a secondary base station from a primary cell of a primary base station, receiving a Master Information Block (MIB) broadcast in the secondary cell, and acquiring a SFN information for the secondary cell from the MIB, and applying the SFN information to at least one cell of the secondary base station.
摘要:
The present disclosure relates to a communication technique and system for converging, with IoT technology, a 5G communication system for supporting a higher data transmission rate beyond a 4G system. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cards, health care, digital education, retail business, security and safety related services, etc.), on the basis of the 5G communication technology and IoT associated technology. According to the present invention, in a method of receiving a MAC PDU, when an unused value is included in a received MAC PDU, the MAC PDU is received through a multicast channel, and the unused value is included in a sub-header of the MAC PDU, the sub-header and a payload portion corresponding to the sub-header are ignored and the remaining sub-header and payload portion are processed.
摘要:
A network selection, a random access method, and an apparatus of a Machine Type Communication (MTC) User Equipment (UE) for use in a Long Term Evolution (LTE) are provided. A cell selection method of an MTC terminal of the present disclosure includes receiving a message from a base station forming a cell, determining whether the message includes an MTC supportability indicator, and barring, when the message includes no MTC supportability indicator, scanning a frequency used in communication with the base station during a determined period.
摘要:
A method and apparatus for managing multiple Timing Advance Groups (TAGs) operating with different timings are provided for use in a Long Term Evolution (LTE) system. The method for managing multiple TAGs at a base station of a wireless communication system supporting carrier aggregation according to an exemplary embodiment of the present invention includes categorizing a plurality of carriers into at least one TAG according to a predetermined rule, assigning a TAG index to each TAG, transmitting the TAG index to a terminal, generating a Timing Advance Command (TAC) for synchronization, and transmitting the TAC to the terminal in a random access process. The method and apparatus for managing TAGs according to exemplary embodiments of the present invention is capable of informing of the timing advance group to which each carrier belongs and managing multiple timing advance groups efficiently without signaling overhead.
摘要:
Provided is a method of sending and receiving signals for a user equipment (UE) in a mobile communication system. The method may include: receiving discovery signal configuration information; scanning a discovery signal resource region determined based on the discovery signal configuration information; transmitting a discovery signal at a resource of the discovery signal resource region selected based on the scanning result; and rescanning the discovery signal resource region on the basis of at least one of the discovery signal configuration information and the scanning result. There are provided a method and apparatus for sending and receiving a discovery signal for D2D communication in a wireless communication system. A UE is allocated discovery signal transmission resources via signaling from the ENB and periodically rescans the discovery signal transmission resources. Thereby, it is possible to send and receive discovery signals in a more efficient manner.
摘要:
A method for matching time synchronization between UEs during Device-to-Device (hereinafter referred to as “D2D”) communication in a radio communication system without involving an Evolved Node B (ENB) is proposed. Using the proposed method, all the UEs can operate to match the time synchronization without malfunction in accordance with a synchronization signal of the ENB even if the UE inside an ENB area and the UE outside the ENB area coexist.
摘要:
A method and apparatus for managing multiple Timing Advance Groups (TAGs) operating with different timings are provided for use in a Long Term Evolution (LTE) system. The method for managing multiple TAGs at a base station of a wireless communication system supporting carrier aggregation according to an exemplary embodiment of the present invention includes categorizing a plurality of carriers into at least one TAG according to a predetermined rule, assigning a TAG index to each TAG, transmitting the TAG index to a terminal, generating a Timing Advance Command (TAC) for synchronization, and transmitting the TAC to the terminal in a random access process. The method and apparatus for managing TAGs according to exemplary embodiments of the present invention is capable of informing of the timing advance group to which each carrier belongs and managing multiple timing advance groups efficiently without signaling overhead.
摘要:
A data transmission method and an apparatus to communicate data on multiple carriers in the mobile communication system are provided. A random access method of a terminal in a mobile communication system including primary and secondary cells operating on multiple carriers according to the present invention includes communicating data after random access in the primary cell, receiving, when the random access is triggered in the secondary cell, information for use in the secondary cell random access from the primary cell, transmitting a preamble in the secondary cell based on the received information, monitoring the primary cell to receive a Random Access Response for the secondary cell, and applying, when the Random Access Response for the secondary cell is received, the information carried in the Random Access Response to the secondary cell in which the preamble has been transmitted.
摘要:
A data transmission method and an apparatus to communicate data on multiple carriers in the mobile communication system are provided. A random access method of a terminal in a mobile communication system including primary and secondary cells operating on multiple carriers according to the present invention includes communicating data after random access in the primary cell, receiving, when the random access is triggered in the secondary cell, information for use in the secondary cell random access from the primary cell, transmitting a preamble in the secondary cell based on the received information, monitoring the primary cell to receive a Random Access Response for the secondary cell, and applying, when the Random Access Response for the secondary cell is received, the information carried in the Random Access Response to the secondary cell in which the preamble has been transmitted.