Patent US1403876A successfully refreshed from Google Patents.
US6810018B2
Expired / Lapsed
US
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Method and apparatus for load balancing in CDMA/HDR networks
Assignee: Nortel Networks Ltd
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Filing: 2000-12-07
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Granted: 2004-10-26
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Expires: 2020-12-07
Abstract
Abstract A method and apparatus for load balancing in CDMA/HDR networks. An access terminal is operably coupled to a plurality of access points. The access terminal monitors the quality of the forward communication links between the access terminal and the access points. The access terminal also monitors the capacity utilization of the access points. The access terminal then requests data to be transmitted to the access terminal from a selected access point as a function of the monitored quality of the forward communication links and the capacity utilizations.
Inventors
- 👤 David Paranchych
- 👤 Farid Khafizov
- 👤 Geng Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:27
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/08; H04W28/086; H04W28/0861; H04W24/00; H04W92/00; H04W92/04; H04W92/10
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
89 words
A method of load balancing in a CDMA/HDR communications network including one or more access points capable of servicing an access terminal, comprising: the access terminal monitoring the quality of the forward communication links between the access points and the access terminal; the access terminal monitoring the capacity utilization of the access points; and the access terminal requesting data transmission from a selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points.
Claim 2
Independent Claim
89 words
A method of load balancing in a CDMA/HDR communications network including one or more access points capable of servicing an access terminal, comprising: the access terminal monitoring the quality of the forward communication links between the access points and the access terminal; the access terminal monitoring the capacity utilization of the access points; and the access terminal requesting data transmission from a selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points.
Claim 3
Dependent Claim
29 words
The method of claim 1 , wherein the access terminal monitors the carrier to interference ratio of the forward communication links between the access points and the access terminal.
Claim 4
Dependent Claim
19 words
The method of claim 1 , wherein the access terminal monitors the forward loading factors for the access points.
Claim 5
Dependent Claim
85 words
The method of claim 3 , wherein the access terminal monitoring the forward loading factors for the access points comprises: the access terminal monitoring the forward activity bits for a predetermined number of time slots within a time window; the access terminal counting the number of active time slots for each access point; and the access terminal calculating the forward loading factors for the access points by dividing the number of active time slots by the total number of time slots for each access point.
Claim 6
Dependent Claim
15 words
The method of claim 4 , further comprising: sliding the position of the time window.
Claim 7
Dependent Claim
15 words
The method of claim 4 , further comprising: time averaging the calculated forward loading factors.
Claim 8
Dependent Claim
18 words
The method of claim 4 , further comprising: shifting the time window by one or more time slots.
Claim 9
Dependent Claim
14 words
The method of claim 4 , further comprising: varying the number of time slots.
Claim 10
Dependent Claim
38 words
The method of claim 1 , wherein the access terminal requests data transmission from an access point having the largest ratio of the monitored quality of the forward communication link to the capacity utilization for the access point.
Claim 11
Dependent Claim
73 words
The method of claim 1 , wherein the access terminal monitors the carrier to interference ratio of the forward communication links between the access points and the access terminal; wherein access terminal monitors the forward loading factor for the access points; and wherein the access terminal requests data transmission from an access point having the largest ratio of the carrier to interference ratio of the forward communication link to the forward loading factor.
Claim 12
Dependent Claim
77 words
The method of claim 10 , wherein the access terminal monitoring the forward loading factors for the access points comprises: the access terminal monitoring the forward activity bits for a predetermined number of time slots; the access terminal counting the number of active time slots for each access point; and the access terminal calculating the forward loading factors by dividing the number of active time slots by the total number of time slots for each access point.
Claim 13
Dependent Claim
15 words
The method of claim 11 , further comprising: sliding the position of the time window.
Claim 14
Dependent Claim
15 words
The method of claim 11 , further comprising: time averaging the calculated forward loading factors.
Claim 15
Dependent Claim
18 words
The method of claim 11 , further comprising: shifting the time window by one or more time slots.
Claim 16
Dependent Claim
14 words
The method of claim 11 , further comprising: varying the number of time slots.
Claim 17
Dependent Claim
32 words
The method of claim 1 , further comprising: upon initiating a data transmission session, configuring the access terminal to monitor a selected number of the forward communication links and the access points.
Claim 18
Dependent Claim
87 words
The method of claim 16 , wherein the access terminal monitors the quality of the forward communication links between the selected number of access points and the access terminal; wherein the access terminal monitors the capacity utilization of the selected number of access points; and wherein the access terminal requests data transmission from a selected one of the selected number of access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the selected number of access points.
Claim 19
Dependent Claim
87 words
The method of claim 1 , wherein the access terminal monitors the quality of the forward communication links between a preselected number of access points and the access terminal; wherein the access terminal monitors the capacity utilization of the preselected number of access points; and wherein the access terminal requests data transmission from a selected one of the preselected number of access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the preselected number of access points.
Claim 20
Dependent Claim
54 words
The method of claim 1 , further comprising: if the entire block of data has not been transmitted, then: the access terminal continuing to monitor the quality of the forward communication links between the access points and the access terminal; and the access terminal continuing to monitor the capacity utilization of the access points.
Claim 21
Dependent Claim
68 words
The method of claim 19 , further comprising: the access terminal requesting transmission of the remaining block of data from another selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points; and the other selected access point transmitting at least a portion of the block of data to the access terminal.
Claim 22
Dependent Claim
61 words
The method of claim 1 , wherein the access terminal monitors the quality of the forward communication links between N access points and the access terminal; wherein the access terminal monitors the capacity utilization of the M access points having the highest quality forward communication links between the access points and the access terminal; and wherein M is less than N.
Claim 23
Independent Claim
79 words
A method of determining a forward loading factor for an access point in a CDMA/HDR communications network including an access terminal and an access point, comprising: monitoring forward activity bits for the access point for a predetermined number of time slots within a time window; counting the number of active slots for the access point; and calculating the forward loading factor for the access point by dividing the number of active slots by the total number of time slots.
Claim 24
Independent Claim
79 words
A method of determining a forward loading factor for an access point in a CDMA/HDR communications network including an access terminal and an access point, comprising: monitoring forward activity bits for the access point for a predetermined number of time slots within a time window; counting the number of active slots for the access point; and calculating the forward loading factor for the access point by dividing the number of active slots by the total number of time slots.
Claim 25
Dependent Claim
15 words
The method of claim 22 , further comprising: sliding the position of the time window.
Claim 26
Dependent Claim
15 words
The method of claim 22 , further comprising: time averaging the calculated forward loading factors.
Claim 27
Dependent Claim
18 words
The method of claim 22 , further comprising: shifting the time window by one or more time slots.
Claim 28
Dependent Claim
14 words
The method of claim 22 , further comprising: varying the number of time slots.
Claim 29
Dependent Claim
97 words
A communications network, comprising: one or more access points; and an access terminal operably coupled to the access points; wherein the access terminal is adapted to monitor the quality of the forward communication links between the access points and the access terminal; wherein the access terminal is adapted to monitor the capacity utilization of the access points; and wherein the access terminal is adapted to request data transmission from a selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points.
Claim 30
Dependent Claim
97 words
A communications network, comprising: one or more access points; and an access terminal operably coupled to the access points; wherein the access terminal is adapted to monitor the quality of the forward communication links between the access points and the access terminal; wherein the access terminal is adapted to monitor the capacity utilization of the access points; and wherein the access terminal is adapted to request data transmission from a selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points.
Claim 31
Dependent Claim
33 words
The communications network of claim 27 , wherein the access terminal is adapted to monitor the carrier to interference ratio of the forward communication links between the access points and the access terminal.
Claim 32
Dependent Claim
23 words
The communications network of claim 27 , wherein the access terminal is adapted to monitor the forward loading factor for the access points.
Claim 33
Dependent Claim
84 words
The communications network of claim 29 , wherein the access terminal is adapted to monitor the forward activity bits for a predetermined number of time slots within a time window; wherein the access terminal is adapted to count the number of active time slots for each access point; and wherein the access terminal is adapted to calculate the forward loading factors for the access points by dividing the number of active time slots by the total number of time slots for each access point.
Claim 34
Dependent Claim
21 words
The communications network of claim 30 , wherein the access terminal is adapted to slide the position of the time window.
Claim 35
Dependent Claim
21 words
The communications network of claim 30 , wherein the access terminal is adapted to time average the calculated forward loading factors.
Claim 36
Dependent Claim
24 words
The communications network of claim 30 , wherein the access terminal is adapted to shift the time window by one or more time slots.
Claim 37
Dependent Claim
20 words
The communications network of claim 30 , wherein the access terminal is adapted to vary the number of time slots.
Claim 38
Dependent Claim
38 words
The communications network of claim 27 , wherein the access terminal is adapted to request data transmission from an access point having the largest ratio of the monitored quality of the forward communication link to the capacity utilization.
Claim 39
Dependent Claim
83 words
The communications network of claim 27 , wherein the access terminal is adapted to monitor the carrier to interference ratio of the forward communication links between the access points and the access terminal; wherein access terminal is adapted to monitor the forward loading factor for the access points; and wherein the access terminal is adapted to request data transmission from an access point having the largest ratio of the carrier to interference ratio of the forward communication link to the forward loading factor.
Claim 40
Dependent Claim
54 words
The communications network of claim 27 , further comprising: a base station controller operably coupled to the access points and access terminal; wherein, upon initiating a data transmission session, the base station controller is adapted to configure the access terminal to monitor a selected number of the forward communication links and the access points.
Claim 41
Dependent Claim
97 words
The communications network of claim 37 , wherein the access terminal is adapted to monitor the quality of the forward communication links between the selected number of access points and the access terminal; wherein the access terminal is adapted to monitor the capacity utilization of the selected number of access points; and wherein the access terminal is adapted to request data transmission from a selected one of the selected number of access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the selected number of access points.
Claim 42
Dependent Claim
29 words
The communications network of claim 27 , further comprising: means for configuring the access terminal to monitor a selected number of the forward communication links and the access points.
Claim 43
Dependent Claim
97 words
The communications network of claim 39 , wherein the access terminal is adapted to monitor the quality of the forward communication links between the selected number of access points and the access terminal; wherein the access terminal is adapted to monitor the capacity utilization of the selected number of access points; and wherein the access terminal is adapted to request data transmission from a selected one of the selected number of access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the selected number of access points.
Claim 44
Dependent Claim
97 words
The communications network of claim 27 , wherein the access terminal is adapted to monitor the quality of the forward communication links between a preselected number of access points and the access terminal; wherein the access terminal is adapted to monitor the capacity utilization of the preselected number of access points; and wherein the access terminal is adapted to request data transmission from a selected one of the preselected number of access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the preselected number of access points.
Claim 45
Dependent Claim
59 words
The communications network of claim 27 , if the entire block of data has not been transmitted, then: the access terminal is adapted to continue to monitor the quality of the forward communication links between the access points and the access terminal; and the access terminal is adapted to continue to monitor the capacity utilization of the access points.
Claim 46
Dependent Claim
74 words
The communications network of claim 42 , wherein the access terminal is adapted to request transmission of the remaining block of data from another selected one of the access points as a function of the monitored quality of the forward communication links and the monitored capacity utilizations of the access points; and the other selected access point is adapted to transmit at least a portion of the block of data to the access terminal.
Claim 47
Dependent Claim
62 words
The communications network of claim 27 , wherein the access terminal monitors the quality of the forward communication links between N access points and the access terminal; wherein the access terminal monitors the capacity utilization of the M access points having the highest quality forward communication links between the access points and the access terminal; and wherein M is less than N.
Claim 48
Dependent Claim
91 words
A communication network, comprising: an access terminal; and an access point operably coupled to the access terminal; wherein the access terminal is adapted to monitor forward activity bits for the access point for a predetermined number of time slots within a time window; wherein the access terminal is adapted to count the number of active slots for the access point; and wherein the access terminal is adapted to calculate the forward loading factor for the access point by dividing the number of active slots by the total number of time slots.
Claim 49
Dependent Claim
91 words
A communication network, comprising: an access terminal; and an access point operably coupled to the access terminal; wherein the access terminal is adapted to monitor forward activity bits for the access point for a predetermined number of time slots within a time window; wherein the access terminal is adapted to count the number of active slots for the access point; and wherein the access terminal is adapted to calculate the forward loading factor for the access point by dividing the number of active slots by the total number of time slots.
Claim 50
Dependent Claim
21 words
The communications network of claim 45 , wherein the access terminal is adapted to slide the position of the time window.
Claim 51
Dependent Claim
21 words
The communications network of claim 45 , wherein the access terminals is adapted to time average the calculated forward loading factors.
Claim 52
Dependent Claim
24 words
The communications network of claim 45 , wherein the access terminal is adapted to shift the time window by one or more time slots.
Claim 53
Dependent Claim
20 words
The communications network of claim 45 , wherein the access terminal is adapted to vary the number of time slots.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-10-26 | 2008-04-26 | 2008-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-26 | 2012-04-26 | 2012-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-26 | 2016-04-26 | 2016-10-26 | $7700.00 | Window Closed / Lapsed |