Abstract:
An apparatus and a method for controlling a beamforming gain in a wireless communication system are provided. The method includes determining whether to control a beamforming gain, controlling the beamforming gain via change of a beam width if it is determined to control the beamforming gain, and transmitting or receiving a signal according to the controlled beamforming gain.
Abstract:
A method for performing communication by a cellular base station in a wireless communication system is provided. The method includes performing channel contention for occupying a channel of an unlicensed band, if the channel of the unlicensed band is occupied, the cellular base station transmits a first message including information about a time period in which the channel of the unlicensed band is usable, to at least one first User Equipment (UE) that performs communication in the channel of the unlicensed band using a first communication scheme, and communicating with a second UE using a second communication scheme different from the first communication scheme in the channel of the unlicensed band during a time period corresponding to the time period information. The second communication scheme corresponds to a cellular communication scheme, and the first message is transmitted to the at least one first UE based on the first communication scheme.
Abstract:
A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.
Abstract:
A method for performing communication by a cellular base station in a wireless communication system is provided. The method includes performing channel contention for occupying a channel of an unlicensed band, if the channel of the unlicensed band is occupied, the cellular base station transmits a first message including information about a time period in which the channel of the unlicensed band is usable, to at least one first User Equipment (UE) that performs communication in the channel of the unlicensed band using a first communication scheme, and communicating with a second UE using a second communication scheme different from the first communication scheme in the channel of the unlicensed band during a time period corresponding to the time period information. The second communication scheme corresponds to a cellular communication scheme, and the first message is transmitted to the at least one first UE based on the first communication scheme.
Abstract:
A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.
Abstract:
A method for providing a cooperative communication service by a macro Base Station (BS) in a mobile communication system is provided. The method includes generating at least one small cell BS group by grouping small cell BSs if there are small cell BSs of which a number is equal to or larger than a threshold small cell BS number within a service coverage of the macro BS, establishing a cooperative interface with a representative small cell BS among small cell BSs included in the at least one small cell BS group, and providing a cooperative communication service with the at least one small cell BS group using the cooperative interface.
Abstract:
A method for operating resources by a base station in a communication system is provided. The method includes transmitting at least one beam to at least one terminal, receiving strength information of the at least one beam from the at least one terminal, determining at least one of resources which are not used for communication between the at least one terminal and the base station, and resources, whose interference to communication between the base station and the at least one terminal is less than or equal to a predetermined threshold, based on the strength information of the at least one beam, and allocating the determined resources as resources for communication which is performed between terminals without the base station.
Abstract:
A method for performing a network entry procedure by a Mobile Station (MS) in a cloud cell communication system is provided. The method includes determining whether there is an arbitrary cloud cell member candidate Base Station (BS) as a cloud cell member candidate BS which has transmitted a downlink synchronization signal with a signal strength, if there is the arbitrary cloud cell member candidate BS, determining the arbitrary cloud cell member candidate BS as a final cloud cell member candidate BS which will perform a cooperative communication with the master BS, transmitting an access request message including information on the final cloud cell member candidate BS to the master BS, and receiving an access response message including information on a cloud cell member BS from the master BS.
Abstract:
A Hybrid Automatic Repeat reQuest (HARQ) method and an apparatus in a communication system are provided. The method includes receiving, by a Subscriber Station (SS), first data from at least one first member Base Station (BS) among member BSs of a cooperative cell, when the cooperative cell is configured with the member BSs to provide a communication service to the SS, generating a response signal indicating a reception result of the first data, and transmitting the response signal to at least one predefined second member BS from among the member BSs. The member BSs include a master BS for controlling communication of the member BSs and at least one slave BS for communicating with the SS under the control of the master BS.