CA2509532A1 - Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program and recording medium - Google Patents
Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program and recording medium Download PDFInfo
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- CA2509532A1 CA2509532A1 CA002509532A CA2509532A CA2509532A1 CA 2509532 A1 CA2509532 A1 CA 2509532A1 CA 002509532 A CA002509532 A CA 002509532A CA 2509532 A CA2509532 A CA 2509532A CA 2509532 A1 CA2509532 A1 CA 2509532A1
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- allocated bandwidth
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Abstract
The aim of the present invention is to achieve a low delay and high bandwidth efficiency in an upstream bandwidth and to accurately reflect assured bandwidth in an actual transmitted bandwidth. To achieve this, in the present invention the maximum value and the transmission cycle of a requested bandwidth are set for each service class. The present invention allocates bandwidth to a service path terminating section based on excess allocated bandwidth and requested bandwidth of each service path terminating section. For each service path terminating section the present invention also selects one bandwidth out of a plurality of bandwidths requested by a service path terminating section in such a manner that the sum value of the allocated bandwidths of the plurality of service path terminating sections is within a predetermined range.
Claims (8)
1. A dynamic bandwidth allocation circuit, comprising:
an excess allocated bandwidth management section that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation section that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k- l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management section, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management section that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation section that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k- l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management section, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
2. A dynamic bandwidth allocation circuit, comprising:
an excess allocated bandwidth management section that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring section that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation section that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management section, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j,k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management section that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring section that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation section that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management section, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j,k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
3. A dynamic bandwidth allocation method, comprising:
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k- l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j,k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k- l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j,k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
4. A dynamic bandwidth allocation method, comprising:
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
5. A computer-readable storage medium containing a set of instructions for a computer, the set of instructions comprising:
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
6. A computer-readable storage medium containing a set of instructions for a computer, the set of instructions comprising:
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw_add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw_add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw_add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw_add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw_add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw_add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
7. ~A recording medium on which is recorded a program that executes on a computer:
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw_add j, k - l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw_add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw_add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw_add j, k - l) which is calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw_add j, k) which is used in the allocation calculation of a subsequent cycle based on allocated bandwidth and ideal bandwidth in a current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw_add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
8. A recording medium on which is recorded a program that executes on a computer:
an excess allocated bandwidth management step that stores the excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
an excess allocated bandwidth management step that stores the excess allocated bandwidth that is bandwidth that has been allocated in excess to each of a plurality of service path terminating sections;
an upstream bandwidth measuring step that measures actual transmitted bandwidth for each service path terminating section; and a bandwidth allocation calculation step that allocates bandwidth to each service path terminating section based on the bandwidth requested by each service path terminating section and on the excess allocated bandwidth (bw~add j, k - l) calculated in a previous cycle and stored in the excess allocated bandwidth management step, and that also calculates the excess allocated bandwidth (bw~add j, k) which is used in the allocation calculation of a subsequent cycle based on actual transmitted bandwidth and allocated bandwidth in the previous cycle and allocated bandwidth and ideal bandwidth in the current cycle, and stores the excess allocated bandwidths in the excess allocated bandwidth management section, wherein the ideal bandwidth is calculated by subtracting the excess allocated bandwidth (bw~add j, k - l) of the previous cycle and stored in the excess allocated bandwidth management section from a value obtained by proportionally distributing an ideal total allocated bandwidth using ratios of assured bandwidths of each service path terminating section that has requested bandwidth in the current cycle.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001274034A JP3734732B2 (en) | 2001-09-10 | 2001-09-10 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program, and recording medium |
| JP2001274035A JP3768421B2 (en) | 2001-09-10 | 2001-09-10 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program, and recording medium |
| JP2001274036A JP3768422B2 (en) | 2001-09-10 | 2001-09-10 | Dynamic band allocation circuit, subscriber termination device, PON system, dynamic band allocation method, dynamic band allocation program, and recording medium |
| JP2001-274034 | 2001-09-10 | ||
| JP2001-274035 | 2001-09-10 | ||
| JP2001-274036 | 2001-09-10 | ||
| CA002401490A CA2401490C (en) | 2001-09-10 | 2002-09-06 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program and recording medium |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002401490A Division CA2401490C (en) | 2001-09-10 | 2002-09-06 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program and recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2509532A1 true CA2509532A1 (en) | 2003-03-10 |
| CA2509532C CA2509532C (en) | 2010-06-15 |
Family
ID=34891170
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2509532A Expired - Lifetime CA2509532C (en) | 2001-09-10 | 2002-09-06 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, dynamic bandwidth allocation program and recording medium |
| CA2509045A Expired - Lifetime CA2509045C (en) | 2001-09-10 | 2002-09-06 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, optical network unit, pon system, and dynamic bandwidth allocation program and recording medium |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2509045A Expired - Lifetime CA2509045C (en) | 2001-09-10 | 2002-09-06 | Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, optical network unit, pon system, and dynamic bandwidth allocation program and recording medium |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2509532C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9838149B2 (en) | 2012-01-17 | 2017-12-05 | Nippon Telegraph And Telephone Corporation | Wavelength and bandwidth allocation method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117294599A (en) * | 2022-06-16 | 2023-12-26 | 华为技术有限公司 | Bandwidth adjustment method and related device |
-
2002
- 2002-09-06 CA CA2509532A patent/CA2509532C/en not_active Expired - Lifetime
- 2002-09-06 CA CA2509045A patent/CA2509045C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9838149B2 (en) | 2012-01-17 | 2017-12-05 | Nippon Telegraph And Telephone Corporation | Wavelength and bandwidth allocation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2509045A1 (en) | 2003-03-10 |
| CA2509045C (en) | 2011-04-26 |
| CA2509532C (en) | 2010-06-15 |
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| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220906 |