摘要:
The present invention relates to a method and a device for transmitting and receiving data in a wireless communication system. The present invention can provide a method and a device for transmitting to a network node a first preamble and a first request message for requesting random connection; as a response to the first request message, receiving a first response message comprising the index of a second preamble successfully received by the network node and a second identifier for indicating whether or not the first request message is decoded and contention resolution; and, while the connection with the network node has not been formed, transmitting first data to the network node in accordance with the index of the second preamble and the second identifier.
摘要:
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.
摘要:
Provided are a method and a device for reducing a transmission resource of a control channel in a short TTI in a wireless communication system. Specifically, a plurality of first downlink channels which are received during an sTTI and are included in a subframe corresponding to one TTI, and a second downlink channel received during a TTI are received. Further, information on a resource block used for the plurality of first downlink channels is obtained by using a resource block indicator transmitted to a downlink control channel of a control region comprising the first symbol of a subframe. The plurality of first downlink channels are demodulated by using the information, and the second downlink channel is demodulated by using the downlink control channel.
摘要:
Disclosed is method and apparatus for communication using common feedback information in multiple antenna system. According to this method, a receiving side device receives rank Ni signals from a transmitting side device with a first type multiple antenna transmission scheme at a first receiving opportunity, and receives rank Nj signals from the transmitting side device with a second type multiple antenna transmission scheme at a second receiving opportunity, where Ni>Nj. The feedback information of this method is common feedback information comprising a combination of a first feedback information for the rank Ni signals and a second feedback information for the rank Nj signals. For this, the first type multiple antenna transmission scheme uses the second type multiple antenna transmission scheme for transmission of rank Nj signals among the rank Ni signals received at the first receiving opportunity.
摘要:
Method and apparatus for establishing a plurality of bearers for transmitting and receiving data in a wireless communication system. There is provided a method of establishing, by a base station, a plurality of bearers including establishing the plurality of bearers between a plurality of network nodes and the base station, receiving a specific message through a dedicated bearer from a user equipment, the specific message including message type information indicating a type of the specific message, and transmitting the specific message to one of the plurality of network nodes through one of the plurality of bearers based on the message type information.
摘要:
A method for controlling, by an entity of a first radio access technology (RAT), a base station of a second RAT in a multi-RAT environment, according to one embodiment of the present invention, comprises the steps of: determining an operation mode of the base station of the second RAT; and transmitting, to the base station of the second RAT, a message instructing a transition to the determined operation mode, wherein the message changes the opportunity for the second RAT to occupy a radio resource through a contention between the base station of the second RAT and a terminal connected to the first RAT.