Abstract:
A method and an apparatus of cooperating with a plurality of base stations in a wireless communication system. A cloud cell is configured with a plurality of base stations that cooperate with each other for a mobile station and synchronizes user contexts for serving the mobile station among the plurality of base stations included in the cloud cell, and the plurality of base stations cooperate with each other to provide a communication service to the mobile station. The present disclosure reduces generation of a handover when the mobile station moves between base stations, and increases the data yield of the mobile station by transmitting and receiving data in cooperation with base stations in a cloud cell at a shaded area or a cell border.
Abstract:
An apparatus for an idle mode terminal is configured to perform a method for operating the idle mode terminal in a Machine to Machine (M2M) communication system. A paging message is received from the base station during a paging listening interval. The Apparatus determines whether an indicator indicating receipt of multicast group data is included in the paging message. When the indicator indicating the receiving of multicast group data is included, data transmitted via a downlink resource that uses an identifier mask of a multicast group to which a terminal belongs is received. Thereafter, a paging non-listening interval is entered.
Abstract:
A Mobile Station (MS) in a wireless communication system is provided. The MS includes, generating a message for requesting to generate a service flow, the message including mobility management information of the service flow, and transmitting the message including the mobility management information. The mobility management information is used to determine whether the service flow requires an anchor.
Abstract:
A method, station (STA), and access point (AP) for transmitting in a WLAN. A station includes a controller and a transceiver, the transceiver configured to receive, from an AP, a channel sounding sequence including a null data packet announcement frame (NDPA) including information indicating STAs to transmit a feedback report, a null data packet (NDP) containing pilots to compute the feedback report and a trigger frame (TF) to trigger transmission of the feedback report. An AP includes a controller and a transceiver, the controller configured to generate a NDPA including information indicating STAs to transmit a feedback report, a NDP containing pilots to compute the feedback report, and a TF to trigger transmission of the feedback report from at least one of the STAs, and the transceiver is operably connected to the controller and configured to transmit a channel sounding sequence that includes the NDPA, the NDP, and the TF.
Abstract:
A mobile device includes a receiver configured to perform hybrid precoding on signals received through a large bandwidth communication. The receiver includes a plurality of antennas configured to receive wireless communications signals through the large bandwidth communication. The receiver also includes a number of radio frequency (RF) chains, each including a low-bit analog to digital converter (ADC) configured to preform precoding to receive the data and control signals. The receiver further includes a baseband processor configured to perform baseband detection.
Abstract:
A method of establishing a data transmission bandwidth between a transmitting node and a receiving node is provided. The method includes sending a request to send (RTS) message from a transmitting node to a receiving node, the RTS message indicating a data transmission bandwidth to be considered for use in subsequent data transmission and establishing a negotiated data transmission bandwidth comprising multiple channels, wherein each channel comprises a 20 MHz bandwidth, and wherein the multiple channels are at least one of contiguous and non-contiguous in frequency.
Abstract:
Beam selection is provided. A method for handover in a mobile station includes sending a scan request message for scanning a downlink (DL) beam with respect to a serving base station (BS) and a neighboring BS, to the serving BS, and receiving a scan response message; determining the DL beam for the MS by performing scanning with the serving BS and the neighboring BS based on the scan response message; sending a scan report message comprising a result of the scanning to the serving BS; when receiving an air-HO request message from the serving BS, generating an air-HO response message comprising information of a neighboring BS to which the MS hands over based on the air-HO request message; performing beam selection with the neighboring BS of the handover based on the air-HO request message; and performing the handover.
Abstract:
A method for performing random access by a User Equipment (UE) in a wireless network, comprises configuring at least one UE transmit beam for a transmission of a random access signal, generating the at least one UE transmit beam using an antenna array according to the configuration, and transmitting the random access signal to a base station (BS) on the at least one UE transmit beam. An user equipment for performing random access in a wireless network, the User Equipment comprises a processing circuit configured to configure at least one UE transmit beam for a transmission of a random access signal, and generate the at least one UE transmit beam using an antenna array according to the configuration, and transmit the random access signal to the Base Station (BS) on the at least one UE transmit beam.
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, station, and access point for transmitting in a wireless local area network. A method for operating the station includes receiving a beacon signal from an access point in the wireless local area network. The method also includes identifying from the beacon signal a target transmission time of a trigger frame to be transmitted by the access point for an uplink multi-user transmission. A method for operating the access point includes transmitting, to one or more stations in the wireless local area network, a beacon signal that indicates a target transmission time of a trigger frame to be transmitted by the access point for an uplink multi-user transmission.