COMMUNICATION APPARATUS, COMMUNICATION CONTROL METHOD, AND COMPUTER PROGRAM

    公开(公告)号:US20170353274A1

    公开(公告)日:2017-12-07

    申请号:US15584250

    申请日:2017-05-02

    Inventor: Masahiro Komatsu

    Abstract: A communication apparatus comprises: a controller, a sender and a receiver. The controller determines, among data units provided with reference numbers, a first group that includes data units to be sent to another communication apparatus. The sender sends the data units to another communication apparatus. The receiver receives, from another communication apparatus, information that indicates a reception situation regarding the data units. The sender execute a re-sending process of the data unit corresponding to the reception error when the reception situation indicates a reception error The controller either prevent the sender from sending a data unit in a second group when the sender is executing the re-sending process or stop the re-sending process when the receiver receives a report of arrival of the data unit corresponding to the reception error from the another communication apparatus while the sender is executing the re-sending process.

    COMMUNICATION DEVICE AND COMMUNICATION METHOD

    公开(公告)号:US20170331636A1

    公开(公告)日:2017-11-16

    申请号:US15522135

    申请日:2015-03-25

    Inventor: Daisuke OSAGAWA

    Abstract: To include a frame reception unit to separate a frame received from one device into a relay sub-payload that is not addressed to a device of its own, and an own-device addressed sub-payload that is addressed to a device of its own, an error detection unit to perform error detection based on the error-detection code within the own-device addressed sub-payload, a relay sub-payload storage unit to store therein the relay sub-payload, a communication-start notification unit to notify a communication-start timing to start communication simultaneously with other devices, and a frame transmission unit to start transmitting to another device the frame including a preamble and the relay sub-payload upon being notified of the communication-start timing, when the frame is not being transmitted, and to add the relay sub-payload to an end of the frame being transmitted, so as to continue transmission of the frame, when the relay sub-payload is stored in the relay sub-payload storage unit while the frame is being transmitted.

    COMMUNICATIONS DEVICES AND METHODS
    25.
    发明申请

    公开(公告)号:US20170310427A1

    公开(公告)日:2017-10-26

    申请号:US15518418

    申请日:2015-11-03

    Abstract: A communications device and method, in which data is communicated via a wireless access interface to a destination communications device with a device-to-device communication procedure. The communications device encodes the data, as data units, for transmission to the destination communications device with a repeat request-type protocol, the encoding providing an indication whether the data has been received correctly. The communications device transmits the encoded data units to the destination communications device, and receives an acknowledgement ACK message that one of the encoded data units has been correctly received by the destination communications device, or a negative acknowledgement NACK message that the encoded data units were not received correctly by the destination communications device. The ACK or NACK message is transmitted by another communications devices of a group of communications devices, acting as a relay communications device, which received and retransmitted the ACK or NACK message from the destination communications device.

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