摘要:
A group communication method of a terminal is provided. The terminal establishes a group call connection with a first base station belonging to a group call zone, and receives group call data from the first base station. When moving to the coverage area of a second base station belonging to the group call zone, the terminal receives group call data from the second base station.
摘要:
Disclosed is a method for a first terminal to perform direct communication between terminals, the method including performing direct communication with at least one second terminal by using resources allocated for direct communication between terminals, the resources including a synchronization channel used for frequency synchronization and time synchronization between terminals, and the synchronization channel including a synchronization channel preamble used for at least one of preamble detection, time offset estimation, frequency offset estimation, and channel estimation.
摘要:
Disclosed is a method for a first terminal to perform direct communication between terminals, the method including performing direct communication with at least one second terminal by using resources allocated for direct communication between terminals, the resources including a synchronization channel used for frequency synchronization and time synchronization between terminals, and the synchronization channel including a synchronization channel preamble used for at least one of preamble detection, time offset estimation, frequency offset estimation, and channel estimation.
摘要:
A method for performing direct communication, by a first terminal, between terminals, includes transmitting a control message for a direct communication resource allocation to at least one second terminal through a first region included in a direct communication resource, transmitting synchronization information to at least one second terminal through a second region included in the direct communication resource, and transmitting a data packet to at least one second terminal through a third region included in the direct communication resource.
摘要:
A method of controlling power saving modes of a plurality of terminals joining in a group communication by a base station is provided. The base station establishes a group call connection with the plurality of terminals, and establishes a same power saving mode pattern for the plurality of terminals.
摘要:
A multicast management method of a base station is provided. The base station generates a CRC for a message including resource allocation information of a multicast group including a plurality of terminals, and masks the CRC by a CRC mask. The base station adds the masked CRC to the message, and then transmits the message to which the masked CRC is added to the multicast group.
摘要:
A method in which a first terminal supports direct communication using infracommunication includes setting at least one direct communication link with at least one second terminal, setting at least one traffic connection with a base station, and forwarding data that is transmitted through the at least one direct communication link from the at least one second terminal to the at least one traffic connection or forwarding data that is transmitted through the at least one traffic connection from the base station to the at least one direct communication link.
摘要:
Protocol structure of a mobile station, base station or relay station in a wireless access system is provided. The protocol structure includes a first function block configured to perform radio resource control and management as a MAC layer and to reside on a control plane, and a second function block configured to perform medium access control as the MAC layer and to reside on the control plane and a data plane. The first function block includes various function blocks for supporting high reliability.
摘要:
A first terminal for performing direct communication between terminals includes: a radio frequency (RF) unit; and a processor, the processor being adapted to perform direct communication with at least one second terminal by using resources allocated for direct communication between terminals, wherein the resources are divided into a first slot region and a second slot region, the first slot region including a synchronization channel containing synchronization information for direct communication between terminals, a dedicated channel for transmitting direct communication data between terminals, and a supplementary channel one-to-one mapped with the dedicated channel, and the second slot region including the dedicated channel and the supplementary channel.
摘要:
A method of configuring a cell of a terminal includes: transmitting, by the terminal, when the terminal searches for an idle band, a downlink frame; performing a network entry procedure with other terminals at 1 hop from the terminal; and optimizing, by the terminal, transmission power.