Patent US5457736A successfully refreshed from Google Patents.
US5457736A
Expired / Lapsed
US
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System and method for providing microcellular personal communications services (PCS) utilizing embedded switches
Assignee: Qwest Communications International Inc
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Filing: 1994-04-12
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Granted: 1995-10-10
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Expires: 2014-04-12
Abstract
Abstract A system and method adapted to provide microcellular Personal Communications Services (PCS) through the use of an improved Distributed Radio Port Controller (DRPC) architecture. The architecture achieves the desired handover with minimal impact on the existing embedded base of switches by generating new calls from target Radio Port Controllers (RPCs) through the switches to anchor RPCs and internally bridging bearer channels without the knowledge of the switches. The system includes a Home Location Register (HLR) for storing and providing subscription data and keeping track of where the mobile terminals are registered in order to deliver calls. A PCS# database is also utilized for storing a list of Universal Personal Telephone (UPT) numbers which have been assigned to the PCS subscribers. The PCS# database is operable to map these UPT numbers to the locations of their corresponding HLR. The system further includes a Service Control Point (SCP) which is provided in electrical communication with the switch, the HLR, and the PCS# database and which is operable to query the HLR for routing information and provide the received response to the switch.
Inventors
- 👤 Michael E. Cain
- 👤 Jo A. Friedman
- 👤 Purushottam V. Kamat
- 👤 Phillip D. Reddick
- 👤 Peter L. Reinig
- 👤 Dejan Sirovica
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:55
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/02; H04L; H04L12/00; H04L12/64; H04L12/6418; H04L9/00; H04L9/40; H04M; H04M7/00; H04M7/006; H04Q; H04Q3/00; H04Q3/0016; H04Q3/0029; H04Q3/005; H04W8/08; H04W8/12; H04L2012/6421; H04L2012/6443; H04L2012/6472; H04L2012/6475; H04L2012/6486; H04M2207/00; H04M2207/18; H04Q2213/00; H04Q2213/13513; H04Q2213/13517; H04Q2213/13532; H04Q2213/13547; H04W92/00; H04W92/02; H04W92/16; H04W92/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
288 words
For use in an Advanced Intelligent Network (AIN) having an existing wireline switch, a system for providing microcellular Personal Communications Services (PCS) to subscribers at mobile terminals without using a mobile telephone switch, the system comprising: a Home Location Register (HLR) for storing and providing subscription data and keeping track of where said mobile terminals are registered in order to deliver calls thereto; a PCS number database for storing a list of Universal Personal Telephone (UPT) numbers which have been assigned to said PCS subscribers and mapping said UPT numbers to the locations of their corresponding HLR; a Service Control Point (SCP) provided in electrical communication with said wireline switch, said HLR and said PCS number database, said SCP operable to query said HLR for routing information and provide said information to said wireline switch; a plurality of Radio Port Controllers (RPC's) each having a corresponding serving area and provided in electrical communication with said wireline switch via ISDN signalling, each of said RPC's further having at least one Radio Port (RP) provided in electrical communication with said RPC for transmitting and receiving calls from mobile terminals registered in said RPC serving area and means for performing handover between a target RPC and a RPC currently serving a mobile terminal by bridging a call made from the target RPC to the RPC currently serving the mobile terminal internally, wherein said wireline switch has no knowledge of said handover; and a Visitor Location Register/Directory Number (VLR/DN) Manager provided in electrical communication with said wireline switch, said HLR and said plurality of RPC's for managing call information about said mobile terminals registered in said RPC serving areas by assigning and deleting temporary routing Directory Numbers (DNs) for said PCS calls.
Claim 2
Dependent Claim
288 words
For use in an Advanced Intelligent Network (AIN) having an existing wireline switch, a system for providing microcellular Personal Communications Services (PCS) to subscribers at mobile terminals without using a mobile telephone switch, the system comprising: a Home Location Register (HLR) for storing and providing subscription data and keeping track of where said mobile terminals are registered in order to deliver calls thereto; a PCS number database for storing a list of Universal Personal Telephone (UPT) numbers which have been assigned to said PCS subscribers and mapping said UPT numbers to the locations of their corresponding HLR; a Service Control Point (SCP) provided in electrical communication with said wireline switch, said HLR and said PCS number database, said SCP operable to query said HLR for routing information and provide said information to said wireline switch; a plurality of Radio Port Controllers (RPC's) each having a corresponding serving area and provided in electrical communication with said wireline switch via ISDN signalling, each of said RPC's further having at least one Radio Port (RP) provided in electrical communication with said RPC for transmitting and receiving calls from mobile terminals registered in said RPC serving area and means for performing handover between a target RPC and a RPC currently serving a mobile terminal by bridging a call made from the target RPC to the RPC currently serving the mobile terminal internally, wherein said wireline switch has no knowledge of said handover; and a Visitor Location Register/Directory Number (VLR/DN) Manager provided in electrical communication with said wireline switch, said HLR and said plurality of RPC's for managing call information about said mobile terminals registered in said RPC serving areas by assigning and deleting temporary routing Directory Numbers (DNs) for said PCS calls.
Claim 3
Dependent Claim
17 words
The system of claim 1, wherein said wireline switch is an Integrated Services Digital Network (ISDN) switch.
Claim 4
Dependent Claim
32 words
The system of claim 1, wherein said wireline switch is a Signalling System No. 7 (SS7) Service Switching Point (SSP) operable to communicate with said SCP with AIN 0.1 messages via SS7.
Claim 5
Dependent Claim
18 words
The system of claim 1, wherein said HLR and said PCS number database reside on the same SCP.
Claim 6
Dependent Claim
15 words
The system of claim 1, wherein said SCP is equipped with AIN release 0.1 functionality.
Claim 7
Dependent Claim
17 words
The system of claim 2, wherein said wireline RPCs are connected to said switch via ISDN lines.
Claim 8
Dependent Claim
24 words
The system of claim 1, wherein said VLR/DN-Mgr is provided in electrical communication with said RPCs through an existing ISDN interface with said switch.
Claim 9
Dependent Claim
21 words
The system of claim 1, wherein said VLR/DN-Mgr is provided in electrical communication with said HLR via a SS7 signaling connection.
Claim 10
Dependent Claim
289 words
For use in an Advanced Intelligent Network (AIN) having an existing wireline switch, a system for providing microcellular Personal Communications Services (PCS) to subscribers at mobile terminals without using a mobile telephone switch, the method comprising: storing subscription data for said subscribers in a Home Location Register (HLR); storing a list of Universal Personal Telephone (UPT) numbers which have been assigned to said mobile terminals in a PCS number database; mapping said UPT numbers to the locations of their corresponding HLR; providing a Service Control Point (SCP) in electrical communication with said wireline switch, said HLR and said PCS number database; monitoring said wireline switch to detect predetermined AIN triggers; generating a query at said wireline switch for receipt by said SCP upon detection of said predetermined triggers, said query requesting call routing information; providing a plurality of Radio Port Controllers (RPCs) each having a corresponding serving area and provided in electrical communication with said wireline switch via ISDN signalling, each of the RPCs further having at least one Radio Port (RP) provided in electrical communication with said RPC for transmitting and receiving calls from said mobile terminals registered in said RPC serving areas; performing handover between a target RPC and a RPC currently serving a mobile terminal by bridging a call made from the target RPC to the RPC currently serving the mobile terminal internally, wherein said wireline switch has no knowledge of said handover; and managing call information about said mobile terminals registered in said RPC serving areas by assigning and deleting temporary routing Directory Numbers (DNs) for said PCS calls through the use of a Visitor Location Register/Directory Number (VLR/DN) Manager provided in electrical communication with said wireline switch, said HLR and said plurality of RPC's.
Claim 11
Dependent Claim
289 words
For use in an Advanced Intelligent Network (AIN) having an existing wireline switch, a system for providing microcellular Personal Communications Services (PCS) to subscribers at mobile terminals without using a mobile telephone switch, the method comprising: storing subscription data for said subscribers in a Home Location Register (HLR); storing a list of Universal Personal Telephone (UPT) numbers which have been assigned to said mobile terminals in a PCS number database; mapping said UPT numbers to the locations of their corresponding HLR; providing a Service Control Point (SCP) in electrical communication with said wireline switch, said HLR and said PCS number database; monitoring said wireline switch to detect predetermined AIN triggers; generating a query at said wireline switch for receipt by said SCP upon detection of said predetermined triggers, said query requesting call routing information; providing a plurality of Radio Port Controllers (RPCs) each having a corresponding serving area and provided in electrical communication with said wireline switch via ISDN signalling, each of the RPCs further having at least one Radio Port (RP) provided in electrical communication with said RPC for transmitting and receiving calls from said mobile terminals registered in said RPC serving areas; performing handover between a target RPC and a RPC currently serving a mobile terminal by bridging a call made from the target RPC to the RPC currently serving the mobile terminal internally, wherein said wireline switch has no knowledge of said handover; and managing call information about said mobile terminals registered in said RPC serving areas by assigning and deleting temporary routing Directory Numbers (DNs) for said PCS calls through the use of a Visitor Location Register/Directory Number (VLR/DN) Manager provided in electrical communication with said wireline switch, said HLR and said plurality of RPC's.
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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) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |