摘要:
A mobile communication system comprises a base station and a relay station to relay data transmitted/received between the base station and a mobile station. The base station includes a first scheduler to perform scheduling of initial transmission of the data transmitted/received between the base station and the mobile station via the relay station, and a first manager to manage predetermined wireless resources which are periodically used, as wireless resources used for the initial transmission of the data. The relay station includes a second scheduler configured to perform scheduling of transmission of a message for confirming necessity of retransmission of the data and retransmission of the data and a second manager configured to manage wireless resources used for the transmission of the message and the retransmission of the data.
摘要:
A mobile communication system comprises a base station and a relay station to relay data transmitted/received between the base station and a mobile station. The base station includes a first scheduler to perform scheduling of initial transmission of the data transmitted/received between the base station and the mobile station via the relay station, and a first manager to manage predetermined wireless resources which are periodically used, as wireless resources used for the initial transmission of the data. The relay station includes a second scheduler configured to perform scheduling of transmission of a message for confirming necessity of retransmission of the data and retransmission of the data and a second manager configured to manage wireless resources used for the transmission of the message and the retransmission of the data.
摘要:
A wireless base station apparatus includes a reporting unit which reports information on a first transmission area that allows transmission of a random access signal. Accordingly, the first transmission area is wholly reported to mobile station apparatuses within an area of the wireless base station apparatus. That is, both a mobile station apparatus in a non-handover state and a mobile station apparatus in a handover state receive the first transmission area information (report information) and use the first transmission area as a transmission area for transmitting a random access signal to the wireless base station apparatus. The wireless base station apparatus also has a notifying unit which notifies a second transmission area to a mobile station apparatus in a handover state, the second transmission area being different from the first transmission area reported by the reporting unit of the handover-destination wireless base station apparatus.
摘要:
To provide a method for suitably enabling the resources of a handover-source base station to be released and the post-handover processes of a handover-destination base station to be executed by securely determining a transfer of Last Packet without increasing a packet transmission delay in a handover process in a mobile communication system where a mobile station makes a communication with packets, a base station is provided with a Last Packet determination timer, and the handover source base station or the handover-destination base station activates the timer upon receipt of a handover completion acknowledgment transmitted from an upper node station or according to a resource release instruction after the reception of the handover completion acknowledgment, and determines that Last Packet has been received, upon expiration of the timer.
摘要:
A radio communication system includes a relay station, a first radio base station, second radio base stations, and a mobile station. The relay station is connected by radio to the first radio base station and communicates with the second radio base stations via the first radio base station. When the relay station communicates with the second radio base stations, the relay station requests the first radio base station to communicate with the second radio base stations for the relay station. The requested first radio base station communicates with the second radio base stations for the relay station and transmits a communication result to the relay station.
摘要:
A method used in a radio communication system including a first radio base station, a second radio base station that communicates with the first radio base station, a relay station which communicates with the second radio base station via the first radio base station, and a mobile station, the method transmits a request, by the second radio base station, for requesting the first radio base station to communicate with the relay station for the second radio base station and communicating, by the requested first radio base station, with the relay station for the second radio base station and transmits a communication result to the second radio base station.
摘要:
A mobile station, that includes a receiving means for receiving first PDCP PDU from a source base station and a receiving means for receiving second PDCP-PDU from a target base station, in which the second PDCP-PDU being created using sequence number and PDCP SDU that are transferred from the source base station to the target base station and a storage means for storing PDCP SDU conforming to the first PDCP PDU and the PDCP SDU conforming to the second PDCP PDU; and a reordering means for performing in order delivery of the stored PDCP SDUs based on the sequence numbers.
摘要:
A method for an intermittent communication system where an intermittent communication can be made between a base station apparatus and a mobile station apparatus, that includes the mobile station apparatus's transmitting information based on a result of measuring a reception signal received in the intermittent communication, and changing a reception frequency of the intermittent communication.
摘要:
In an intermittent communication system where an intermittent communication can be made between a base station and a mobile station, a transmitting unit of the mobile station transmits a request to start a normal communication after stopping an intermittent communication at timing different from the intermittent communication if a handover is determined to be required. A transiting unit transits from the intermittent communication to the normal communication after the transmitting unit transmits the request. A handover performing unit performs a handover upon completion of transition to the normal communication by the transiting unit.
摘要:
A receiving method and apparatus that performs receiving processing of data transmitted at timings of a predetermined interval. The method and apparatus includes transmitting a signal indicating that a data is successfully received when the data transmitted at Mth timing according to the predetermined interval is successfully received; determining whether or not retransmission control processing is performed when the signal indicating that the data is successfully received is transmitted; and transmitting a signal indicating that the data is successfully received when the retransmission control processing is determined to be performed.