METHOD, APPARATUS, AND STORAGE MEDIUM

• US 20170085496A1
• Filed: 09/12/2016
• Published: 03/23/2017
• Est. Priority Date: 09/18/2015
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Tanaka, Jun, Sugimoto, Toshio, Kimura, Masanori, OHISHI, Kei
• Granted Patent: US 10,298,459 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 47/748 Negotiation of resources, e.g. modification of a request

Abstract

A method includes: receiving a reservation, made by a user from a user terminal, regarding a bandwidth of a line; first determining whether or not a total bandwidth of a bandwidth demanded by the reservation in a time slot related to the received reservation and a guaranteed bandwidth to one or more reserved users exceeds a permissible upper limit value of the line; when the total bandwidth exceeds the permissible upper limit value, calculating a reducible bandwidth based on a bandwidth shortage produced by subtracting the permissible upper limit value from the total bandwidth and statistical information of a use bandwidth consumed by the one or more reserved users; second determining a reduction bandwidth reduced from the guaranteed bandwidth based on the calculated reducible bandwidth; and assigning, by a processor, the determined reduction bandwidth to the bandwidth demanded by the reservation.

Claims

1. A method comprising:

receiving a reservation, made by a user from a user terminal, regarding a bandwidth of a line;

first determining whether or not a total bandwidth of a bandwidth demanded by the reservation in a time slot related to the received reservation and a guaranteed bandwidth to one or more reserved users exceeds a permissible upper limit value of the line;

when the total bandwidth exceeds the permissible upper limit value, calculating a reducible bandwidth based on a bandwidth shortage produced by subtracting the permissible upper limit value from the total bandwidth and statistical information of a use bandwidth consumed by the one or more reserved users;

second determining a reduction bandwidth reduced from the guaranteed bandwidth based on the calculated reducible bandwidth; and

assigning, by a processor, the determined reduction bandwidth to the bandwidth demanded by the reservation.

2. The method according to claim 1, wherein

the second determining includes determining individual reduction bandwidths produced by evenly dividing the reduction bandwidth for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

the assigning assigns the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the respective guaranteed bandwidths to the respective reserved users.

3. The method according to claim 1, wherein

the second determining includes determining individual reduction bandwidths by weighting based on respective reducible bandwidths of the reserved users for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

the assigning assigns the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the guaranteed bandwidths to the respective reserved users.

4. An apparatus comprising:

a memory; and

a processor coupled to the memory and configured to;

receive a reservation, made by a user from a user terminal, regarding a bandwidth of a line,

determine whether or not a total bandwidth of a bandwidth demanded by the reservation in a time slot related to the received reservation and a guaranteed bandwidth to one or more reserved users exceeds a permissible upper limit value of the line,

when the total bandwidth exceeds the permissible upper limit value, calculate a reducible bandwidth based on a bandwidth shortage produced by subtracting the permissible upper limit value from the total bandwidth and statistical information of a use bandwidth consumed by the one or more reserved users,

determine a reduction bandwidth reduced from the guaranteed bandwidth based on the calculated reducible bandwidth, and

assign the determined reduction bandwidth to the bandwidth demanded by the reservation.

5. The apparatus according to claim 4, wherein the processor is configured to:

determine individual reduction bandwidths produced by evenly dividing the reduction bandwidth for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

assign the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the respective guaranteed bandwidths to the respective reserved users.

6. The apparatus according to claim 4, wherein the processor is configured to:

determine individual reduction bandwidths by weighting based on respective reducible bandwidths of the reserved users for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

assign the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the guaranteed bandwidths to the respective reserved users.

7. A non-transitory storage medium storing a program for causing a computer to execute a process, the process comprising:

receiving a reservation, made by a user from a user terminal, regarding a bandwidth of a line;

first determining whether or not a total bandwidth of a bandwidth demanded by the reservation in a time slot related to the received reservation and a guaranteed bandwidth to one or more reserved users exceeds a permissible upper limit value of the line;

when the total bandwidth exceeds the permissible upper limit value, calculating a reducible bandwidth based on a bandwidth shortage produced by subtracting the permissible upper limit value from the total bandwidth and statistical information of a use bandwidth consumed by the one or more reserved users;

second determining a reduction bandwidth reduced from the guaranteed bandwidth based on the calculated reducible bandwidth; and

assigning the determined reduction bandwidth to the bandwidth demanded by the reservation.

8. The non-transitory storage medium according to claim 7, wherein

the second determining includes determining individual reduction bandwidths produced by evenly dividing the reduction bandwidth for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

the assigning assigns the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the respective guaranteed bandwidths to the respective reserved users.

9. The non-transitory storage medium according to claim 7, wherein

the second determining includes determining individual reduction bandwidths by weighting based on respective reducible bandwidths of the reserved users for the respective guaranteed bandwidths to the reserved users having the reducible bandwidth higher than a predetermined value out of the one or more reserved users, and

the assigning assigns the determined individual reduction bandwidths to the bandwidth demanded by the reservation from the guaranteed bandwidths to the respective reserved users.