US5563941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the distribution of calls in a communication network
Assignee: Nokia Solutions and Networks GmbH and Co KG
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Filing: 1995-06-09
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Granted: 1996-10-08
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Expires: 2015-06-09
Abstract
Abstract For distributing calls in a communication network, a central network authority that forwards calls from subscribers to servers for further servicing of the calls provides an optimally successful distribution, i.e. a low load-conditioned cleardown rate by the servers, even when it cannot directly register the workload of a server. In order to achieve this, the central network authority monitors the reason for the cleardown of a call by a server and excludes a server from the call distribution procedure for a specific time span when this server clears an allocated calldown due to lack of adequate capacity.
Inventors
- 👤 Rainer Stademann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:02
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0016; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/51; H04M3/523; H04M3/5237; H04M2207/00; H04M2207/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A method for distributing calls in a communication network, comprising the steps of: registering calls by a central authority of the communication network and subsequently allocating the calls to servers that then service the calls; also servicing calls with the servers that have not been registered and allocated by the central authority; after a successful allocation, monitoring with the central authority whether a server does a cleardown of an allocated call due to lack of capacity; and in case of the cleardown of the call due to lack of capacity, excluding the server from a further allocation of a call by the central authority for a specific time span or reducing a probability for a further allocation for said time span.
Claim 2
Independent Claim
121 words
A method for distributing calls in a communication network, comprising the steps of: registering calls by a central authority of the communication network and subsequently allocating the calls to servers that then service the calls; also servicing calls with the servers that have not been registered and allocated by the central authority; after a successful allocation, monitoring with the central authority whether a server does a cleardown of an allocated call due to lack of capacity; and in case of the cleardown of the call due to lack of capacity, excluding the server from a further allocation of a call by the central authority for a specific time span or reducing a probability for a further allocation for said time span.
Claim 3
Dependent Claim
38 words
A method according to claim 1 wherein in case of cleardown of the call due to lack of adequate capacity, the call is allocated to a different server without an ensuing cleardown being perceptible for a calling party.
Claim 4
Dependent Claim
95 words
A method according to claim 1 wherein the allocation by the central authority is implemented with assistance of display values about reserve capacities of the servers, a display value of reserve capacity of a server is formed or updated in that a previous display value is deincremented at every successful allocation of a call to the server by a capacity of the call and is correspondingly incremented given every occurring cleardown, and the allocation to a server is only allowed to occur when the display value belonging to the server indicates an adequate reserve capacity.
Claim 5
Dependent Claim
83 words
A method according to claim 3 wherein in case of the cleardown of the call by the server due to lack of adequate capacity, the probability for a further allocation of a call to this server is diminished since the display value of the reserve capacity of the server is reduced by a correction value for a specific time span, and wherein the correction value corresponds to the display value at the point in time of the unsuccessful allocation or of the cleardown.
Claim 6
Dependent Claim
30 words
A method according to claim 4 wherein a charging of the display value of the reserve capacity with a correction value is completely retracted after expiration of said time span.
Claim 7
Dependent Claim
32 words
A method according to claim 4 wherein a charging of the display value of the reserve capacity with a correction value is retracted step-by-step, a step length corresponding to said time span.
Claim 8
Dependent Claim
40 words
A method according to claim 1 wherein calls that cannot be immediately distributed due to lack of adequate capacity of the servers are first intermediately stored in a queue, a hold request being communicated to the calling party as warranted.
Claim 9
Independent Claim
127 words
A method for distributing calls in a communication network, comprising the steps of: registering calls by a central authority of the communication network and subsequently allocating the calls to servers that then service the calls; also servicing calls with the servers that have not been registered and allocated by the central authority; after a successful allocation, monitoring with the central authority whether a server does a cleardown of an allocated call due to lack of capacity; and in case of the cleardown of the call due to lack of capacity, performing one of the functions of excluding the server from a further allocation of a call by the central authority for a specific time span, and reducing a probability for a further allocation for said time span.
Claim 10
Independent Claim
127 words
A method for distributing calls in a communication network, comprising the steps of: registering calls by a central authority of the communication network and subsequently allocating the calls to servers that then service the calls; also servicing calls with the servers that have not been registered and allocated by the central authority; after a successful allocation, monitoring with the central authority whether a server does a cleardown of an allocated call due to lack of capacity; and in case of the cleardown of the call due to lack of capacity, performing one of the functions of excluding the server from a further allocation of a call by the central authority for a specific time span, and reducing a probability for a further allocation for said time span.
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |