Abstract:
A method for handover of a terminal using a multi-connection in a cellular communication system is disclosed. The method for handover according to the present invention includes a multi-connection setting procedure of setting a connection to a second base station in addition to a connection to a first base station according to movement of a terminal in a direction from the first base station to the second base station, and a connection release procedure of releasing the connection to the first base station. Specifically, the present invention may be applied in a multi-beam management environment of super high frequency (SHF) and extremely high frequency (EHF) bandwidths, and may obtain an effect of decreasing signaling overhead and process latency of a conventional handover method.
Abstract:
A base station of a mobile communication system divides an ultra wideband into a plurality of unit bands, uses a plurality of beam component carriers corresponding to the L3 CP dedicated unit band as a coverage layer by grouping in one cell in the L3 CP dedicated unit band and uses a plurality of beam component carriers corresponding to the UP dedicated unit band in the UP dedicated unit band as a plurality of capacitor layers by grouping in a plurality of cells of a smaller size than that of the grouping.
Abstract:
When transmitting a user message, in a call setting period of a base station and a terminal and a radio connection state between a base station and a terminal, whenever a data transmittable channel resource is available, user messages of an amount corresponding to the available channel resource are transmitted. Therefore, user messages can be divided and transmitted according to an available channel in a call setting period.
Abstract:
A communication method and apparatus using a network slice. A method of performing communication on a control plane of a network system including an access network and a core network may receive an attach request from a user equipment, may perform a mutual authentication with the user equipment in response to the attach request, may retrieve a subscription profile for the user equipment in response to the attach request, when the mutual authentication is completed, and may determine a network slice for the user equipment based on the subscription profile.
Abstract:
An exemplary embodiment of the present invention provides a method for a communication apparatus to process a signal. A first processor of the communication apparatus performs symbol mapping on a first baseband signal transmitted via a PDSCH (physical downlink shared channel). The first processor sends the mapped first baseband signal to a second processor of the communication apparatus by interfacing with the second processor. The second processor modulates the sent first baseband signal. The second processor converts the modulated first baseband signal into an intermediate frequency signal.
Abstract:
An exemplary embodiment of the present invention provides a method for managing, by a management system, an enterprise zone. The management system constructs information on a plurality of small cell base stations and at least one terminal. The management system allocates at least one closed subscriber group (CSG) ID to the enterprise zone including cells of the small cell base stations. Further, the management system transmits a message for adding the CSG ID to a whitelist of the terminal to the terminal.
Abstract:
A discovery method is provided by a terminal in a terminal-to-terminal direct communication terminal-to-terminal direct communication. The terminal broadcasts a sequence, and receives an echo sequence on the sequence from other terminal. The terminal scrambles discovery information with the sequence, and transmits the scrambled discovery information.
Abstract:
A mobile personal base station having a caching function and a method for providing service by the same are disclosed. The mobile personal base station is connected to a service provision server, downloads and stores content, and then broadcasts the availability of the service corresponding to the content to a neighboring terminal. Upon receiving a service request from the neighboring terminal, the mobile personal base station provides the downloaded and stored content to the neighboring terminal.
Abstract:
In a wireless optical communication system, while a mobile station including a wireless optical transmitting/receiving apparatus, i.e., an optical mobile station (OMS), is mounted in a moving object and moves, the mobile station performs handover from a previous optical base station (OBS) to a new OBS. Here, the mobile station may include at least one OMS, and when the mobile station includes two OMSs, soft handover is performed, and when the mobile station includes one OMS, hard handover is performed.
Abstract:
Disclosed are a method for allocating a resource to a D2D link of a base station, including determining a D2D link resource to be allocated to the D2D link among cellular resources of the base station, and transmitting uplink control information including information on the D2D link resource to at least two terminals which are connected by the D2D link among a plurality of cellular terminals connected to the base station, and a method for transmitting/receiving data to and from a terminal, including: searching for a white space of cellular resources; transmitting a search result for the white space to a base station of coverage to which the terminal belongs; receiving resource information determined depending on the search result; and transmitting/receiving data to and from the adjacent terminals through the D2D link based on the resource information.