Packet transmission control apparatus and packet transmission control method

A packet transmission control apparatus which performs transmission control of packets to a plurality of mobile stations, comprising:

• an acquirer configured to acquire a scheduling frequency which shows a frequency of scheduling of packets to each mobile station in a predetermined period;
• and
• a scheduler configured to control scheduling of packets to each mobile station in accordance with an average value of the scheduling frequencies amongst the plurality of mobile stations and the scheduling frequency, the scheduling of packet being in further accordance with a first parameter to control fairness of opportunity for scheduling packets to the plurality of mobile stations, the scheduling frequency and the average value of the scheduling frequencies,
• wherein the scheduler is configured to schedule the packets to a mobile station #n which has a maximum value of evaluation function Cn, which is calculated according to an equation
• Cn=exp(−γ·(fn−F))
• by using the first parameter γ, the scheduling frequency fn and the average value F of the scheduling frequencies.

A packet transmission control apparatus which performs transmission control of packets to a plurality of mobile stations, comprising:

• an acquirer configured to acquire a scheduling frequency which shows a frequency of scheduling of packets to each mobile station in a predetermined period;
• and
• a scheduler configured to control scheduling of packets to each mobile station in accordance with an average value of the scheduling frequencies amongst the plurality of mobile stations and the scheduling frequency, the scheduler being configured to manage priority classes relating to transmission of the packets to each of the mobile station, and to control the scheduling of packets to each mobile station for each of the priority classes,
• wherein the scheduler is configured to schedule the packets to the mobile station #n which has a maximum value of evaluation function Cn, which is calculated according to an equation
• Cn=APCn·exp(−γPCn·(fn−FPCn))
• by using an weighting factor APCn set in accordance with the priority class PCn related to the mobile station #n, the scheduling frequency fn, the average value FPCn of the scheduling frequencies, and the first parameter γPCn to control fairness of opportunity for scheduling packets to the plurality of mobile stations.

A packet transmission control apparatus which performs transmission control of packets to a plurality of mobile stations, comprising:

• an acquirer configured to acquire a scheduling frequency which shows a frequency of scheduling of packets to each mobile station in a predetermined period;
• and
• a scheduler configured to control scheduling of packets to each mobile station in accordance with an average value of the scheduling frequencies amongst the plurality of mobile stations and the scheduling frequency,
• wherein the scheduling frequency fn(t) at time t relating to the mobile station #n is calculated based upon
• fn(t)=τ·fn(t−1)+(1−τ)·Aln(t)
• by using a determining value Aln(t) which shows whether or not a packet is scheduled to the mobile station #n at time t and a forgetting coefficient τ.