Abstract:
The present invention can reduce the clashing of random accesses by assigning a random access priority according to the number of links. A method for random access from a terminal in a virtual cell network system according to an embodiment of the present invention comprises the steps of determining the number of links that are connected to the terminal; selecting a random access set for random access on the basis of the number of links; selecting a slot resource for random access from the random access set on the basis of the number of links; and performing a random access over the slot resource, wherein the slot resource includes a common resource held by a plurality of base stations.
Abstract:
A method for transferring a session between clients is provided when one user uses multiple clients on a service (for example, Push to talk over Cellular (PoC), Instant Messaging (IM), Converged-Internet Protocol (IP) Messaging (CPM)) providing system implemented through a Session Initiation Protocol (SIP)/IP core network. A session transfer method is provided when the user needs to transfer a session to another client while the session is performed through one client. A temporary storing technique is used in which a conversation server or client as one of elements of a seamless CPM system for providing a seamless user environment temporarily stores data transmitted from another user during session transfer.
Abstract:
A portable terminal provided with a cover is provided. The portable terminal includes a main body including an input/output unit; a cover attachable to and detachable from the main body, and provided with an output unit; a first sensor that detects folding/unfolding of the cover; and a controller that controls an output of the input/output unit or the output unit according to a detection signal of the first sensor.
Abstract:
A method and an apparatus are provided for performing wireless communication between terminals. An inquiry message is transmitted to a neighboring terminal. An inquiry response message is received from the neighboring terminal. It is determined whether the apparatus overlaps the neighboring terminal. When the apparatus overlaps the neighboring terminal, paging is automatically performed, without intervention of a user of the apparatus, and pairing between the apparatus and the neighboring terminal is established.
Abstract:
A Converged-Internet Protocol (IP) Messaging (CPM) service provisioning method and system are provided including a CPM server. The CPM server includes an eXtension Markup Language (XML) Document Management (XDM) client for sending a request for preference information of a recipient terminal to which the CPM message is to be delivered, and receiving the preference information in response to the request from an XDM server that stores and manages the preference information of the recipient terminal; and an interworking selection entity for determining a non-CPM service to be subjected to interworking depending on the received preference information, and delivering the CPM message to an interworking server that interworks with the determined non-CPM service.
Abstract:
Provided is electronic paper that includes an imaging sheet for displaying content, a memory for storing the content, a mode switch unit for manually setting an operation mode of the electronic paper, and a controller for performing at least one operation from a plurality of operations including encryption of the content stored in the memory, deletion of the content stored in the memory, deletion of content displayed on the imaging sheet from a screen, and display of a lock screen that requires input of a password on the imaging sheet, according to an operation mode that is set by a user using the mode switch unit.
Abstract:
A method for handover in a wireless communication system includes: when a received signal strength difference between a serving beam from a serving base station used for communication by a terminal and a target beam of a neighboring base station is equal to or greater than a first threshold value, and a received signal strength difference between an active beam and the target beam is equal to or greater than a second threshold value, determining a handover to the target beam; and transmitting a message to initiate the handover.
Abstract:
A method and an apparatus for performing direct communication with at least one other user equipment are provided. The method and apparatus comprises upon generation of an event requiring the direct communication, transmitting a floor request, monitoring whether a response to the floor request is received from at least one adjacent UE, if a response to the floor request is not received until the floor request is transmitted a predetermined number of times at a predetermined interval, determining that a transmission right for the direct communication is granted, and if it is determined that the transmission right is granted, transmitting a signal to the at least one other UE by the direct communication.