Abstract:
The present invention relates to a method for managing information of on/off small cells in a small cell-based network system and apparatuses for supporting the same. As an embodiment of the present invention, a method for managing information on on/off small cells in a radio access system supporting small cells comprises the steps of: receiving a first message including cell state change information of a first cell corresponding to a small cell, which is changed to an on state or an off state, by a second cell; and transmitting a second message including the cell state change information to a UE by the second cell. At this time, the cell state change information may contain identification information of the first cell, on/off time information indicating a time when change to an on state or an off state is made, and on/off timer information indicating a time interval in which the change to the on state or the off state is made.
Abstract:
A method and apparatus for reconfiguring device-to-device (D2D) connection information in a wireless communication system is provided. A first device is connected to a second device through a D2D connection. The first device receives a connection reconfiguration request message including at least one of a new quality of service (QoS) parameter, a new security information parameter, and a new D2D identifier, transmits a connection reconfiguration response message, which indicates whether to accept the request of the connection reconfiguration, to the response of the connection reconfiguration request message, and receives a connection reconfiguration confirm message.
Abstract:
Disclosed are a BBU power configuring method and a BBU which determine required power which is requested by a BBU to an RRH to transmit a downlink signal to a terminal based on RRH power headroom information in a cloud LAN environment in which the RRH and the BBU are separated and transmit a power allocation change request message for making a request for changing transmission power of other BBUs connected to the RRH to the other BBUs.
Abstract:
A method and apparatus for performing transmit (Tx) power control in a convergence network of a plurality of communication systems. A method for performing transmit power control (TPC) in a plurality of communication system convergence networks includes receiving, by a first entity of a first communication system, a TPC information request message requesting information associated with transmit power control (TPC) from a second entity of a second communication system; upon receiving a request of the TPC information request message, transmitting a first TPC information reporting message, which includes a maximum transmit (Tx) power value of the first entity and an interference signal value caused by a neighbor entity of the first entity, to the second entity; receiving a TPC command message, which includes information of the maximum Tx power value of the first entity adjusted based on the maximum Tx power value of the first entity and the interference signal value, from the second entity; and adjusting the maximum Tx power value of the first entity based on the information regarding the adjusted maximum Tx power of the first entity.
Abstract:
A method for supporting communication using two or more heterogeneous radio access technologies (RAT) includes the steps of: the terminal receiving a first message that includes whether to provide support to simultaneous access two or more RATs and parameters requesting that a notification be provided for the supported RAT from a base station in a first RAT network supporting a first RAT; transmitting, to the base station in the first RAT network, a second message including an indicator indicating whether to support simultaneous access to the two or more RAT networks and information on a supported RAT network type in response to the first message, wherein the supported second RAT network type corresponds to a network that is different from the first RAT network.
Abstract:
The present invention relates to a wireless access system and provides methods and apparatuses for controlling and supporting dynamic cell on or off. In an embodiment of the present invention, a method for supporting on or off of a second cell at a first cell in a wireless access system includes receiving a cell on/off state indicator message indicating on or off of the second cell from the second cell, adjusting a handover offset of the second cell, taking into account interference caused by the on or off of the second cell, and transmitting handover offset information about the adjusted handover offset to at least one of the second cell and a first User Equipment (UE).
Abstract:
A method for scanning assigned carriers in a multicarrier system may include receiving a multicarrier advertisement message from a base station, the multicarrier advertisement message including scan reporting trigger control information of assigned secondary carriers, performing scanning for the assigned secondary carriers, and reporting the scan results to the base station when a specific metric measured by the scanning meets a condition set in the scan reporting trigger control information.
Abstract:
A method of supporting signal transmission/reception using at least two RATs and apparatus therefor are disclosed. The present invention includes, receiving, at the user equipment concurrently connected a first base station of a first communication network supportive of a first RAT and a second serving base station of a second communication network supportive of a second RAT, a setup message indicating a handover from the second serving base station to a second target base station from a first base station, terminating a connection to the second serving base station, and establishing a connection to the second target base station. Before the connection to the second serving base station is terminated, data for a specific traffic type is transceived via the second serving base station. After the connection to the second target base station is established, the data for the specific traffic type is transceived via the second target base station. Data except the specific traffic type is transceived via the first base station.
Abstract:
A method for supporting communication using two or more heterogeneous radio access technologies (RAT) includes the steps of: the terminal receiving a first message that includes whether to provide support to simultaneous access two or more RATs and parameters requesting that a notification be provided for the supported RAT from a base station in a first RAT network supporting a first RAT; transmitting, to the base station in the first RAT network, a second message including an indicator indicating whether to support simultaneous access to the two or more RAT networks and information on a supported RAT network type in response to the first message, wherein the supported second RAT network type corresponds to a network that is different from the first RAT network.
Abstract:
A method for supporting communication using two or more heterogeneous radio access technologies (RAT) can include the steps of: receiving a first message requesting that notification be provided as to whether to support simultaneous access to two or more RATs from a base station in a first communication network supporting a first RAT; and transmitting, to the base station in the first communication network, a second message including an indicator indicating whether to support simultaneous access to the two or more RATs in response to the first message.