Communication system and receiver

Abstract

A radio communication technology that can achieve low latency, high reliability, and low jitter characteristics. A transmitter is configured to duplicate a packet and transmit the duplicated packets. The receiver is configured to receive the duplicated packets. The receiver is configured to transfer, to an upper layer in the receiver, a first packet that is a packet received earlier out of the duplicated packets. A transfer timing that is a timing with which the first packet is transferred to the upper layer includes at least one of: a reception timing of a second packet that is a packet received later than the first packet out of the duplicated packets; and a cyclical timing (Cycle time) corresponding to a transmission cycle of the duplicated packets.

1 . A communication system, comprising:
 a transmitter configured to duplicate a packet and transmit the duplicated packets; and   a receiver configured to receive the duplicated packets,   wherein the receiver is configured to transfer, to an upper layer in the receiver, a first packet that is a packet received earlier out of the duplicated packets, and   a transfer timing that is a timing with which the first packet is transferred to the upper layer includes at least one of:
 a reception timing of a second packet that is a packet received later than the first packet out of the duplicated packets; and 
 a cyclical timing corresponding to a transmission cycle of the duplicated packets. 
   
     
     
         2 . The communication system according to  claim 1 ,
 wherein the transfer timing is a timing arriving earlier after reception of the first packet, out of the reception timing of the second packet and the cyclical timing.   
     
     
         3 . A receiver configured to receive packets duplicated by a transmitter,
 wherein the receiver is configured to transfer, to an upper layer in the receiver, a first packet that is a packet received earlier out of the duplicated packets, and   a transfer timing that is a timing with which the first packet is transferred to the upper layer includes at least one of:
 a reception timing of a second packet that is a packet received later than the first packet out of the duplicated packets; and 
 a cyclical timing corresponding to a transmission cycle of the duplicated packets.