CA2326381A1 - System and method for increasing cdma capacity by frequency assignment - Google Patents
System and method for increasing cdma capacity by frequency assignment Download PDFInfo
- Publication number
- CA2326381A1 CA2326381A1 CA002326381A CA2326381A CA2326381A1 CA 2326381 A1 CA2326381 A1 CA 2326381A1 CA 002326381 A CA002326381 A CA 002326381A CA 2326381 A CA2326381 A CA 2326381A CA 2326381 A1 CA2326381 A1 CA 2326381A1
- Authority
- CA
- Canada
- Prior art keywords
- frequencies
- cell sites
- available
- assignment
- pool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
Abstract
A system increases the capacity of a CDMA network having a plurality of cell sites (4110, 4120, 4130). The system defines a pool of frequencies (F1, F2) available for assignment, and assigns one of the available frequencies (F1, F2) to each of the cell sites (4110, 4120, 4130) so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies (F1, F2). By deploying different frequencies (F1, F2) in the cell sites (4110, 4120, 4130), the amount of interference caused by neighboring cell sites reduces. As a result, the capacity of each of the cell sites (4110, 4120, 4130) operating at a single frequency (F1 or F2) can be increased, so long as there remains sufficient power to reach the mobile units (4200) operating within the cell site (4110, 4120, 4130). The system attains maximum benefits when the cell sites (4110, 4120, 4130) are located close together and the propagation exponent is low (for example, 10-20 dB/decade).
Claims (20)
1. A method for increasing capacity of a digital wireless network having a plurality of cell sites, comprising the steps of:
defining a pool of frequencies available for assignment; and assigning one of the available frequencies from the frequency pool to each of the cell sites based on frequencies assigned to neighboring cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
defining a pool of frequencies available for assignment; and assigning one of the available frequencies from the frequency pool to each of the cell sites based on frequencies assigned to neighboring cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
2. The method of claim 1, wherein the defining step includes the substep of:
selecting at least two frequencies from a pool of frequencies available for assignment.
selecting at least two frequencies from a pool of frequencies available for assignment.
3. The method of claim 1, wherein the assigning step includes the substeps of:
selecting one of the cell sites, determining frequencies assigned to the cell sites neighboring the selected cell site, and assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
selecting one of the cell sites, determining frequencies assigned to the cell sites neighboring the selected cell site, and assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
4. The method of claim 1, wherein the assigning step includes the substep of:
determining an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
determining an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
5. The method of claim 4, wherein the assigning step further includes the substeps of:
comparing the determined interference amount to a predetermined threshold;
increasing the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold; and assigning the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
comparing the determined interference amount to a predetermined threshold;
increasing the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold; and assigning the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
6. The method of claim 1, further comprising the step of:
identifying a coverage area of the network; and wherein the defining step includes the substep of:
selecting the frequencies available for assignment based on the identified coverage area of the network.
identifying a coverage area of the network; and wherein the defining step includes the substep of:
selecting the frequencies available for assignment based on the identified coverage area of the network.
7. A system for increasing capacity of a digital wireless network having a plurality of cell sites, comprising:
a frequency defining component to define a pool of frequencies available for assignment; and an assignment component to assign one of the available frequencies from the frequency pool to each of the cell sites based on frequencies assigned to neighboring cells sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
a frequency defining component to define a pool of frequencies available for assignment; and an assignment component to assign one of the available frequencies from the frequency pool to each of the cell sites based on frequencies assigned to neighboring cells sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
8. The system of claim 7, wherein the frequency defining component includes:
a selection component to select at least two frequencies from the pool of frequencies available for assignment.
a selection component to select at least two frequencies from the pool of frequencies available for assignment.
9. The system of claim 7, wherein the assignment component includes:
a selection component to select one of the cell sites;
a determination component to determine frequencies assigned to the cell sites neighboring the selected cell site, and a frequency assignment component to assign one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
a selection component to select one of the cell sites;
a determination component to determine frequencies assigned to the cell sites neighboring the selected cell site, and a frequency assignment component to assign one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
10. The system of claim 7, wherein the assignment component includes:
a determination component to determine an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
a determination component to determine an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
11 11. The system of claim 10, wherein the assignment component further includes:
a comparison component to compare the determined interference amount to a predetermined threshold, a frequency component to increase the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold, and a frequency assignment component to assign the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
a comparison component to compare the determined interference amount to a predetermined threshold, a frequency component to increase the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold, and a frequency assignment component to assign the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
12. The system of claim 7, further comprising:
a network coverage component to identify a coverage area of the network; and wherein the frequency defining component includes:
a frequency selection component to select the frequencies available for assignment based on the identified coverage area of the network.
a network coverage component to identify a coverage area of the network; and wherein the frequency defining component includes:
a frequency selection component to select the frequencies available for assignment based on the identified coverage area of the network.
13. A computer program product for increasing capacity of a digital wireless network having a plurality of cell sites, comprising:
a frequency defining module to define a pool of frequencies available for assignment and an assignment module to assign one of the available frequencies from the frequency pool to each of the cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
a frequency defining module to define a pool of frequencies available for assignment and an assignment module to assign one of the available frequencies from the frequency pool to each of the cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
14. The computer program product of claim 13, wherein the frequency defining module includes:
a selection module to select at least two frequencies from the pool of frequencies available for assignment.
a selection module to select at least two frequencies from the pool of frequencies available for assignment.
15. The computer program product of claim 13, wherein the assignment module includes:
a selection module to select one of the cell sites, a determination module to determine frequencies assigned to the cell sites neighboring the selected cell site, and a frequency assignment module to assign one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
a selection module to select one of the cell sites, a determination module to determine frequencies assigned to the cell sites neighboring the selected cell site, and a frequency assignment module to assign one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites.
16. The computer program product of claim 13, wherein the assignment module includes:
a determination module to determine an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
a determination module to determine an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites.
17. The computer program product of claim 16, wherein the assignment module further includes:
a comparison module to compare the determined interference amount to a predetermined threshold, a frequency module to increase the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold, and a frequency assignment module to assign the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
a comparison module to compare the determined interference amount to a predetermined threshold, a frequency module to increase the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold, and a frequency assignment module to assign the increased pool of available frequencies to the cell sites so as to minimize the number of neighboring cell sites assigned a same one of the available frequencies.
18. The computer program product of claim 13, further comprising:
a network coverage module to identify a coverage area of the network; and wherein the frequency defining module includes:
a frequency selection module to select the frequencies available for assignment based on the identified coverage area of the network.
a network coverage module to identify a coverage area of the network; and wherein the frequency defining module includes:
a frequency selection module to select the frequencies available for assignment based on the identified coverage area of the network.
19. A method of increasing capacity of a digital wireless network, comprising the steps of:
identifying cell sites of the digital network;
defining a pool of frequencies available for assignment;
selecting one of the cell sites;
determining frequencies assigned to cell sites neighboring the selected cell site;
and assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
identifying cell sites of the digital network;
defining a pool of frequencies available for assignment;
selecting one of the cell sites;
determining frequencies assigned to cell sites neighboring the selected cell site;
and assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites to minimize a number of neighboring cell sites assigned a same one of the available frequencies.
20. A computer-implemented method for optimally increasing capacity of a digital network having a plurality of cell sites, comprising the steps of:
(a) defining a pool of frequencies available for assignment;
(b) selecting one of the cell sites;
(c) determining frequencies assigned to the cell sites neighboring the selected cell site;
(d) assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites;
(e) determining an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites;
(f) comparing the determined interference amount to a predetermined threshold;
(g) increasing the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold;
and (h) repeating steps (d) through (g) using the increased number of available frequencies until the determined interference amount is less than the predetermined threshold.
(a) defining a pool of frequencies available for assignment;
(b) selecting one of the cell sites;
(c) determining frequencies assigned to the cell sites neighboring the selected cell site;
(d) assigning one of the available frequencies to the selected cell site based on the determined frequencies assigned to the neighboring cell sites;
(e) determining an amount of interference at the cell sites caused by the neighboring cell sites after assigning frequencies to all of the cell sites;
(f) comparing the determined interference amount to a predetermined threshold;
(g) increasing the pool of frequencies available for assignment when the determined interference amount is greater than the predetermined threshold;
and (h) repeating steps (d) through (g) using the increased number of available frequencies until the determined interference amount is less than the predetermined threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2718110A CA2718110C (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/050,680 | 1998-03-30 | ||
| US09/050,680 US6243584B1 (en) | 1998-03-30 | 1998-03-30 | System and method for increasing CDMA capacity by frequency assignment |
| PCT/US1999/006324 WO1999051045A1 (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2718110A Division CA2718110C (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2326381A1 true CA2326381A1 (en) | 1999-10-07 |
| CA2326381C CA2326381C (en) | 2011-01-04 |
Family
ID=21966731
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2718110A Expired - Fee Related CA2718110C (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
| CA2326381A Expired - Fee Related CA2326381C (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2718110A Expired - Fee Related CA2718110C (en) | 1998-03-30 | 1999-03-23 | System and method for increasing cdma capacity by frequency assignment |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6243584B1 (en) |
| EP (1) | EP1075767B1 (en) |
| JP (1) | JP4672141B2 (en) |
| AT (1) | ATE318049T1 (en) |
| CA (2) | CA2718110C (en) |
| DE (1) | DE69929878T2 (en) |
| WO (1) | WO1999051045A1 (en) |
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| EP1190543A4 (en) * | 1999-06-01 | 2003-05-28 | Peter Monsen | Multiple access system and method for multibeam digital radio systems |
| DE19931236C2 (en) * | 1999-07-07 | 2002-05-29 | Siemens Ag | Method for allocating transmission capacity to connections in a radio communication system |
| US7088671B1 (en) | 1999-11-24 | 2006-08-08 | Peter Monsen | Multiple access technique for downlink multibeam digital radio systems |
| AU2002237226A1 (en) * | 2000-12-20 | 2002-07-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for classifying interference |
| KR100383619B1 (en) * | 2001-02-03 | 2003-05-14 | 삼성전자주식회사 | Method for performing hard handoff in cellular mobile telecommunication system |
| US7227850B2 (en) * | 2001-04-04 | 2007-06-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Cellular radio communication system with frequency reuse |
| US20040004945A1 (en) * | 2001-10-22 | 2004-01-08 | Peter Monsen | Multiple access network and method for digital radio systems |
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| US9125061B2 (en) * | 2002-06-07 | 2015-09-01 | Apple Inc. | Systems and methods for channel allocation for forward-link multi-user systems |
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-
1998
- 1998-03-30 US US09/050,680 patent/US6243584B1/en not_active Expired - Lifetime
-
1999
- 1999-03-23 DE DE69929878T patent/DE69929878T2/en not_active Expired - Lifetime
- 1999-03-23 CA CA2718110A patent/CA2718110C/en not_active Expired - Fee Related
- 1999-03-23 CA CA2326381A patent/CA2326381C/en not_active Expired - Fee Related
- 1999-03-23 AT AT99912834T patent/ATE318049T1/en not_active IP Right Cessation
- 1999-03-23 JP JP2000541838A patent/JP4672141B2/en not_active Expired - Fee Related
- 1999-03-23 WO PCT/US1999/006324 patent/WO1999051045A1/en active IP Right Grant
- 1999-03-23 EP EP99912834A patent/EP1075767B1/en not_active Expired - Lifetime
-
2000
- 2000-06-22 US US09/602,079 patent/US6882846B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002510914A (en) | 2002-04-09 |
| JP4672141B2 (en) | 2011-04-20 |
| CA2718110A1 (en) | 1999-10-07 |
| US6882846B1 (en) | 2005-04-19 |
| EP1075767A1 (en) | 2001-02-14 |
| CA2326381C (en) | 2011-01-04 |
| DE69929878D1 (en) | 2006-04-20 |
| WO1999051045A1 (en) | 1999-10-07 |
| US6243584B1 (en) | 2001-06-05 |
| EP1075767A4 (en) | 2003-05-02 |
| CA2718110C (en) | 2011-09-27 |
| EP1075767B1 (en) | 2006-02-15 |
| DE69929878T2 (en) | 2006-09-28 |
| ATE318049T1 (en) | 2006-03-15 |
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Legal Events
| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160323 |