EP0941003A2
Expired / Lapsed
EP
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Flexible channel allocation for a cellular system based on a hybrid of measurement-based dynamic channel assignment and a reuse-distance criterion algorithm
Assignee: Nokia of America Corp
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Filing: 1999-02-23
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Granted: —
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Expires: 2019-02-23
Abstract
Abstract In a cellular system, channels are assigned for new calls using a flexible channel allocation algorithm that is a hybrid of a measurement-based dynamic channel assignment (MBDCA) algorithm and a reuse-distance criterion algorithm, such as a cost-function-based DCA (CFBDCA). In one embodiment, the MBDCA algorithm is implemented at each cell site in the cellular system and generates a list of candidate channels for each new call. The list is transmitted to the mobile switching center (MSC), which implements the CFBDCA algorithm to select a particular channel from the list of candidate channels for the new call.
Inventors
- 👤 Simon C. Borst
- 👤 Sudheer A. Grandhi
- 👤 Joe Huang
- 👤 Colin Leon Kahn
- 👤 Krishnan Kumaran
- 👤 Bulin B. Zhang
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 08:55
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/02; H04W16/10; H04W16/06; H04W88/00; H04W88/18; H04W24/00; H04W24/10; H04W72/00; H04W72/50; H04W72/54; H04W72/542
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
62 words
A method for allocating channels in a cellular system, comprising the steps of: (a) generating a list of candidate channels for a new call using a measurement-based dynamic
channel assignment (MBDCA) algorithm; (b) applying a reuse-distance criterion algorithm to the list of candidate channels to select a
channel for the new call; and (c) using the selected channel for the new call.
Claim 2
Dependent Claim
18 words
The invention of claim 1, wherein the reuse-distance criterion algorithm is a cost-function-based
dynamic channel assignment (CFBDCA) algorithm.
Claim 3
Dependent Claim
36 words
The invention of claim 1, wherein the MBDCA algorithm is implemented in each cell site
of the cellular system and the reuse-distance criterion algorithm is implemented in a mobile
switching center (MSC) of the cellular system.
Claim 4
Dependent Claim
36 words
The invention of claim 3, wherein the MSC transmits a list of one or more poor channels
to a cell site and the cell site ignores the poor channels when generating the list of candidate
channels.
Claim 5
Dependent Claim
14 words
The invention of claim 4, wherein the reuse-distance criterion algorithm is a CFBDCA
algorithm.
Claim 6
Dependent Claim
72 words
A cellular system, comprising: (a) a mobile switching center (MSC); and (b) a plurality of cell sites, communicating with the MSC, wherein: a cell site generates a list of candidate channels for a new call using an MBDCA algorithm; the MSC applies a reuse-distance criterion algorithm to the list of candidate channels to select
a channel for the new call; and the cell site uses the selected channel for the new call.
Claim 7
Dependent Claim
67 words
A mobile switching center (MSC) for a cellular system further
comprising a plurality of cell sites, wherein: a cell site generates a list of candidate channels for a new call using an
MBDCA algorithm; the MSC applies a reuse-distance criterion algorithm to the list of
candidate channels to select a channel for the new call; and the cell site uses the selected channel for the new call.
Claim 8
Dependent Claim
72 words
A cell site for a cellular system further comprising a mobile switching
center (MSC) and one or more other cell sites, wherein: the cell site generates a list of candidate channels for a new call using an
MBDCA alogirthm; the MSC applies a reuse-distance criterion algorithm to the list of
candidate channels to select a channel for the new call; and the cell sites uses the selected channel for the new call.
Claim 9
Dependent Claim
56 words
A system as claimed in claim 6, or a switching center as claimed in
claim 7, or a cell site as claimed in claim 8, wherein the MSC transmits a list of one or
more poor channels to a cell site and the cell site ignores the poor channels when
generating the list of candidate channels.
Claim 10
Dependent Claim
40 words
A system as claimed in claim 6 or 9, or a switching centre as
claimed in claim 7 or 9, or a cell site as claimed in claim 8 or 9, wherein the reuse-distance
criterion algorithm is a CFBDCA algorithm.
References Cited (Backward Citations)
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