Bandwidth Allocation Apparatus And Bandwidth Allocation Method

Abstract

A bandwidth allocation apparatus includes: a traffic starting position detection unit that detects a start timing of burst traffic on the basis of the traffic information; a traffic information extraction unit that extracts information on a traffic amount of each of a plurality of traffic allocation periods from the traffic information extracted for each lower-level apparatus; a traffic amount estimation unit that calculates an average value of the traffic amount in the traffic allocation periods on the basis of the information on the traffic amount that the traffic information extraction unit has extracted for each lower-level apparatus; and a bandwidth allocation unit that allocates a first bandwidth which is an allocation bandwidth based on the average value calculated by the traffic amount estimation unit to the terminating apparatus from the start timing detected by the traffic starting position detection unit.

1 .- 9 . (canceled) 
     
     
         10 . A relay transmission system that accommodates a communication system configured to perform radio communication according to a TDD scheme, the relay transmission system comprising:
 a traffic information acquisition unit configured to acquire traffic information indicating a traffic amount of communication that a lower-level apparatus performs via a terminating apparatus;   a traffic amount estimation unit configured to calculate a surplus bandwidth in an uplink from the traffic information; and   a newly-connected terminating apparatus authentication unit configured to set an activation window in which a signal for allowing a newly-connected terminating apparatus to send an authentication request to a terminal station apparatus is transmitted in the surplus bandwidth in the uplink.   
     
     
         11 . The relay transmission system according to  claim 10 , wherein the traffic amount estimation unit is configured to calculate the surplus bandwidth in the uplink based on a test pattern transmitted from the communication system. 
     
     
         12 . The relay transmission system according to  claim 10 , further comprising a traffic starting position detection unit configured to search for only a starting position of burst traffic from the communication system and determine existence or non-existence of the burst traffic,
 wherein if the traffic starting position detection unit has determined the non-existence of the burst traffic, the traffic amount estimation unit calculates a bandwidth in which the burst traffic is nonexistent as the surplus bandwidth in the uplink.   
     
     
         13 . The relay transmission system according to  claim 11 , further comprising a traffic starting position detection unit configured to search for only a starting position of burst traffic from the communication system and determine existence or non-existence of the burst traffic,
 wherein if the traffic starting position detection unit has determined the non-existence of the burst traffic, the traffic amount estimation unit calculates a bandwidth in which the burst traffic is nonexistent as the surplus bandwidth in the uplink.   
     
     
         14 . A relay transmission system that accommodates a communication system configured to perform radio communication according to a TDD scheme, the relay transmission system comprising:
 a traffic information acquisitor configured to acquire traffic information indicating a traffic amount of communication that a lower-level apparatus performs via a terminating apparatus;   a traffic amount estimator configured to calculate a surplus bandwidth in an uplink from the traffic information; and   a newly-connected terminating apparatus authenticator configured to set an activation window in which a signal for allowing a newly-connected terminating apparatus to send an authentication request to a terminal station apparatus is transmitted in the surplus bandwidth in the uplink,   wherein each of the traffic information acquisitor, the traffic amount estimator, and the newly-connected terminating apparatus authenticator is implemented by: i) computer executable instructions executed by at least one processor, ii) at least one circuit, or iii) a combination of computer executable instructions executed by at least one processor and at least one circuit.   
     
     
         15 . The relay transmission system according to  claim 14 , wherein the traffic amount estimator is configured to calculate the surplus bandwidth in the uplink based on a test pattern transmitted from the communication system. 
     
     
         16 . The relay transmission system according to  claim 14 , further comprising a traffic starting position detector configured to search for only a starting position of burst traffic from the communication system and determine existence or non-existence of the burst traffic,
 wherein if the traffic starting position detector has determined the non-existence of the burst traffic, the traffic amount estimator calculates a bandwidth in which the burst traffic is nonexistent as the surplus bandwidth in the uplink, and   the traffic starting position detector is implemented by: i) computer executable instructions executed by at least one processor, ii) at least one circuit, or iii) a combination of computer executable instructions executed by at least one processor and at least one circuit.   
     
     
         17 . The relay transmission system according to  claim 15 , further comprising a traffic starting position detector configured to search for only a starting position of burst traffic from the communication system and determine existence or non-existence of the burst traffic,
 wherein if the traffic starting position detector has determined the non-existence of the burst traffic, the traffic amount estimator calculates a bandwidth in which the burst traffic is nonexistent as the surplus bandwidth in the uplink, and   the traffic starting position detector is implemented by: i) computer executable instructions executed by at least one processor, ii) at least one circuit, or iii) a combination of computer executable instructions executed by at least one processor and at least one circuit.   
     
     
         18 . A relay transmission method in a relay transmission system that accommodates a communication system configured to perform radio communication according to a TDD scheme, the relay transmission method comprising:
 acquiring traffic information indicating a traffic amount of communication that a lower-level apparatus performs via a terminating apparatus;   calculating a surplus bandwidth in an uplink from the traffic information; and   setting an activation window in which a signal for allowing a newly-connected terminating apparatus to send an authentication request to a terminal station apparatus is transmitted in the surplus bandwidth in the uplink.