US6463054B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrieving cell information in an overlaid circuit switched and packet switched wireless telecommunication network
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1998-12-31
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Granted: 2002-10-08
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Expires: 2018-12-31
Abstract
Abstract A method of obtaining cell specific information for a dual-mode mobile station (MS) operating in an overlaid network operating on different frequency bandwidths and time slot structures such as a combined D-AMPS and EDGE described in the ETSI Enhanced Data Rates for GSM Evolution (EDGE) specification. The combined networks operating on 30 kHz and 200 kHz respectively having a combined circuit switched and packet switched capability. An MS camping in packet mode is able to perform cell selection/reselection on a particular network by scanning and reading the appropriate control channels of the associated network. For example, in a first aspect of the invention, the MS periodically scans both the control channels on the 30 kHz network to read related cell information and the control channels of the 200 kHz network to read related cell information associated therewith. In a second aspect of the invention, the MS scans the 30 kHz control channels to read the cell information and, if cell reselection occurs, then scans the 200 kHz control channels. In a third aspect, the MS scans and reads the 200 kHz control channels for cell information and, in response to a page from the 30 kHz network, scans control channels associated with the 30 kHz network. A fourth aspect includes the situation where both 30 kHz and 200 kHz cells are coordinated. The MS can then scan and read the control channels from either network and obtain a pointer to the control channels of the other network.
Inventors
- 👤 Sara Mazur
- 👤 Gunnar Thrysin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:46
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/18; H04W36/00; H04W36/0005; H04W36/0011; H04W36/0022; H04W36/00224; H04W88/00; H04W88/02; H04W88/06
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
107 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first circuit switched network using a first carrier bandwidth operating together with a second packet switched network using a second carrier bandwidth, a method of obtaining cell specific information for a mobile station (MS) camped in one of the bandwidths comprising the steps of: scanning and tuning to an associated control channel on the first network; reading cell specific information from said associated control channel on the first network; scanning and tuning to an associated control channel on the second network; and reading cell specific information from said associated control channel on the second network.
Claim 2
Dependent Claim
107 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first circuit switched network using a first carrier bandwidth operating together with a second packet switched network using a second carrier bandwidth, a method of obtaining cell specific information for a mobile station (MS) camped in one of the bandwidths comprising the steps of: scanning and tuning to an associated control channel on the first network; reading cell specific information from said associated control channel on the first network; scanning and tuning to an associated control channel on the second network; and reading cell specific information from said associated control channel on the second network.
Claim 3
Dependent Claim
22 words
A method according to claim 1 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
Claim 4
Dependent Claim
28 words
A method according to claim 1 wherein said packet switched data service is General Packet Radio Service (GPRS) for use with the Global System for Mobile Communications (GSM).
Claim 5
Dependent Claim
21 words
A method according to claim 1 wherein said associated control channel on the first network is a digital control channel (DCCH).
Claim 6
Dependent Claim
21 words
A method according to claim 1 wherein said associated control channel on the second network is a broadcast control channel (BCCH).
Claim 7
Dependent Claim
20 words
A method according to claim 1 wherein said scanning is performed by taking cell reselection measurements on neighboring control channels.
Claim 8
Dependent Claim
25 words
A method according to claim 1 wherein page message from the first network is forwarded to the MS through the packet switched data service network.
Claim 9
Dependent Claim
137 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched service and packet switched data service, a method of responding to a page by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to a digital control channel (DCCH) on said first network; reading cell specific information from said DCCH; scanning and tuning to a broadcast control channel (BCCH) on the second network; reading BCCH to obtain a pointer to an associated packet control channel on the second network such that said packet control channel is accessed in response to packet switched data service page; and responding to an incoming page.
Claim 10
Dependent Claim
137 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched service and packet switched data service, a method of responding to a page by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to a digital control channel (DCCH) on said first network; reading cell specific information from said DCCH; scanning and tuning to a broadcast control channel (BCCH) on the second network; reading BCCH to obtain a pointer to an associated packet control channel on the second network such that said packet control channel is accessed in response to packet switched data service page; and responding to an incoming page.
Claim 11
Dependent Claim
22 words
A method according to claim 8 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
Claim 12
Dependent Claim
29 words
A method according to claim 8 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
Claim 13
Dependent Claim
19 words
A method according to claim 8 wherein said associated packet control channel is a packet common control channel (PCCCH).
Claim 14
Dependent Claim
24 words
A method according to claim 8 wherein page message from the first network are forwarded to the MS through the packet switched data service.
Claim 15
Dependent Claim
127 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first D-AMPS network using a first carrier bandwidth operating together with a second EDGE/GPRS network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to an associated control channel on the second network; reading cell specific information from said associated control channel on the second network; scanning and tuning to an associated control channel on the first network in response to a page from the first network; and reading cell specific information from said associated control channel on the first network.
Claim 16
Dependent Claim
127 words
In a wireless telecommunication system having an overlaid cell arrangement comprising a first D-AMPS network using a first carrier bandwidth operating together with a second EDGE/GPRS network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to an associated control channel on the second network; reading cell specific information from said associated control channel on the second network; scanning and tuning to an associated control channel on the first network in response to a page from the first network; and reading cell specific information from said associated control channel on the first network.
Claim 17
Dependent Claim
22 words
A method according to claim 13 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
Claim 18
Dependent Claim
29 words
A method according to claim 13 wherein said packet switched data service is General Packet Radio Service (GPRS) specified for use with the Global System for Mobile Communications (GSM).
Claim 19
Dependent Claim
21 words
A method according to claim 13 wherein said associated control channel on the second network is a broadcast control channel (BCCH).
Claim 20
Dependent Claim
21 words
A method according to claim 13 wherein said associated control channel on the first network is a digital control channel (DCCH).
Claim 21
Dependent Claim
119 words
In a wireless telecommunication system having a coordinated overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to an associated control channel on either the first network or second network; reading cell specific information and a pointer to the other network from said associated control channel; and switching to the other network as directed by the pointer, in response to an incoming page from the other network.
Claim 22
Dependent Claim
119 words
In a wireless telecommunication system having a coordinated overlaid cell arrangement comprising a first network using a first carrier bandwidth operating together with a second network using a second carrier bandwidth, and wherein said system operates to provide both circuit switched and packet switched data service, a method of obtaining cell specific information by a mobile station (MS) camped in packet mode comprising the steps of: scanning and tuning to an associated control channel on either the first network or second network; reading cell specific information and a pointer to the other network from said associated control channel; and switching to the other network as directed by the pointer, in response to an incoming page from the other network.
Claim 23
Dependent Claim
22 words
A method according to claim 18 wherein said first carrier bandwidth is 30 kHz and the second carrier bandwidth is 200 kHz.
Claim 24
Dependent Claim
29 words
A method according to claim 18 wherein said packet switched data service is General Packet Radio Service (GPRS specified for use with the Global System for Mobile Communications (GSM).
Claim 25
Dependent Claim
21 words
A method according to claim 18 wherein said associated control channel on the first network is a digital control channel (DCCH).
Claim 26
Dependent Claim
20 words
A method according to claim 18 wherein said control channel on the second network is a broadcast control channel (BCCH).
References Cited (Backward Citations)
US5396539A
Cited
US5528664A
Cited
US5420911A
Cited
US5353332A
Cited
US5778316A
Cited
WO1995016330A1
Cited
WO1997015167A1
Cited
US6157845A
Cited
US6230009B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-10-07 | 2006-04-08 | 2006-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-07 | 2010-04-08 | 2010-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-07 | 2014-04-08 | 2014-10-08 | $7700.00 | Window Closed / Lapsed |