EP0817521A2
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Interference based dynamic channel assignment
Assignee: Alcatel Lucent SAS
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Filing: 1997-06-17
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Granted: —
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Expires: 2017-06-17
Abstract
Abstract An interference based dynamic channel assignment scheme for a wireless communication network, for self configuring dynamic channel assignment of a plurality of channels, comprises the steps of: prioritizing a channel list and prioritizing a selected subset of the prioritized channel list. In further enhancements of the present invention, prioritizing a channel list is distributed on a per cell/sector basis so that prioritization is independent of frequency usage information from other cells/sectors and prioritization is based upon uplink and downlink characteristics.
Inventors
- 👤 Nefatiti Anderson
- 👤 Simon C. Borst
- 👤 Lynell E. Cannell
- 👤 Terry Si-Fong Cheng
- 👤 Lindsey Chew
- 👤 Sudheer A. Grandhi
- 👤 Chih-Lin I
- 👤 Joseph Samuel Kaufman
- 👤 Boris Dmitrievich Lubachevsky
- 👤 Balakrishnan Narendran
- 👤 Donna M. Sand
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 04:19
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/02; H04W16/10; H04W72/00; H04W72/50; H04W72/54; H04W72/541; H04W16/04; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
36 words
In a wireless communication network, a method for dynamic channel
assignment of a plurality of channels, the method comprising the steps of: prioritizing a channel list; and prioritizing a selected subset of said prioritized channel list.
Claim 2
Dependent Claim
34 words
A method as claimed in claim 1 wherein the step of prioritizing a
channel list is distributed on a per cell/sector basis so that prioritization is
independent of frequency usage information from other cells/sectors.
Claim 3
Dependent Claim
60 words
In a wireless communication network, a method for dynamic channel
assignment of a plurality of channels, the method comprising the steps of: prioritizing a channel list of uplink channels and downlink channels
distributed on a per cell/sector basis so that prioritization is independent of frequency
usage information from other cells/sectors; and prioritizing a selected subset of said prioritized channel list.
Claim 4
Dependent Claim
29 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
channel list the priority is assigned as a function of long term interference variations.
Claim 5
Dependent Claim
34 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
selected subset of said prioritized channel list the priority is assigned as a function of
short term interference variations.
Claim 6
Independent Claim
20 words
A method as claimed in claim I or 3 wherein the step of prioritizing a
channel list is frequency-channel based.
Claim 7
Dependent Claim
20 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
channel list is time-slot-channel based.
Claim 8
Dependent Claim
25 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
selected subset of said prioritized channel list is frequency-channel based.
Claim 9
Dependent Claim
25 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
selected subset of said prioritizing channel list is time-slot-channel based.
Claim 10
Dependent Claim
19 words
A method as claimed in claim 4 wherein said function of long term
interference variations is a moving average.
Claim 11
Dependent Claim
23 words
A method as claimed in claim 5 wherein said function of short term
interference variations is a function of near instantaneous interference
measurements.
Claim 12
Dependent Claim
19 words
A method as claimed in claim 10 wherein said moving average is a
moving average of received signal strength.
Claim 13
Independent Claim
27 words
A method as claimed in claim I or 3 wherein the priority of said
selected subset is updated more frequently than the priority of said channel list.
Claim 14
Dependent Claim
21 words
A method as claimed in claim 12 wherein said received signal
strength is selected from a sample above a predetermined threshold.
Claim 15
Dependent Claim
14 words
A method as claimed in claim 12 wherein said received signal
strength is weighted.
Claim 16
Dependent Claim
27 words
A method as claimed in claim 15 wherein said weight is adjusted so
that moving averages decrease when interference is low and increase when
interference is high.
Claim 17
Dependent Claim
34 words
A method as claimed in claim 1 or 3 wherein said step of prioritizing
a selected subset of said prioritized channel list is performed more frequently than
said step of prioritizing a channel list.
Claim 18
Dependent Claim
27 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
channel list the priority is assigned as a function of uplink characteristics.
Claim 19
Dependent Claim
32 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
selected subset of said prioritized channel list the priority is assigned as a function of
uplink characteristics.
Claim 20
Dependent Claim
27 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
channel list the priority is assigned as a function of downlink characteristics.
Claim 21
Dependent Claim
32 words
A method as claimed in claim 1 or 3 wherein the step of prioritizing a
selected subset of said prioritized channel list the priority is assigned as a function of
downlink characteristics.
Claim 22
Dependent Claim
28 words
A method as claimed in claim 1 or 3 comprising the step of admitting
a call when an available channel has a CIR greater than a predetermined minimum.
Claim 23
Dependent Claim
28 words
A method as claimed in claim 1 or 3 comprising the step of assigning
a channel from said selected subset of said prioritized channel list with best CIR.
Claim 24
Independent Claim
33 words
A method as claimed in claim I or 3 comprising the step of assigning
a channel from said selected subset of said prioritized channel list that has at least a
minimum CIR threshold.
References Cited (Backward Citations)
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