US5475862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved registration in cellular radio telecommunications systems
Assignee: Telefonaktiebolaget LM Ericsson AB
•
Filing: 1993-01-19
•
Granted: 1995-12-12
•
Expires: 2013-01-19
Abstract
Abstract A method and system for registering mobile stations within a cellular radio telecommunications system. A registration confirmation message, initial voice channel designation message or initial traffic channel designation message may include system parameter values to enable the mobile station to ensure that it is currently registered in the system in which it is currently located.
Inventors
- 👤 Francois Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
CPC Classifications
H; H04; H04W; H04W84/00; H04W8/00; H04W8/18; H04W8/183
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
146 words
A method for the registration of mobile stations operating within a radio telecommunications system comprising the steps of: broadcasting a first system parameter value on a control channel of said system; receiving said first system parameter value at one of said mobile stations; storing said first system parameter value within a first memory of said mobile station; transmitting a system access message from said mobile station to said system; transmitting in response to said system access message a system acknowledgement message from said system to said mobile station, said system acknowledgment message including a second system parameter value; storing said second system parameter value within a second memory of said mobile station; comparing said second system parameter value with said first system parameter value; and transmitting a registration message from said mobile station to said system if said first and second system parameter values are different.
Claim 2
Independent Claim
146 words
A method for the registration of mobile stations operating within a radio telecommunications system comprising the steps of: broadcasting a first system parameter value on a control channel of said system; receiving said first system parameter value at one of said mobile stations; storing said first system parameter value within a first memory of said mobile station; transmitting a system access message from said mobile station to said system; transmitting in response to said system access message a system acknowledgement message from said system to said mobile station, said system acknowledgment message including a second system parameter value; storing said second system parameter value within a second memory of said mobile station; comparing said second system parameter value with said first system parameter value; and transmitting a registration message from said mobile station to said system if said first and second system parameter values are different.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said system acknowledgement message comprises a registration confirmation message.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said system acknowledgement message comprises an initial voice channel designation message.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein said system acknowledgement message comprises an initial traffic channel designation message.
Claim 6
Dependent Claim
33 words
The method of claim 1 wherein said step of storing said second system parameter value includes: analyzing said system acknowledgement message to determine which particular system parameter value is included in said message.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein said first memory comprises a temporary memory in said mobile station and said second memory comprises a semi-permanent memory in said mobile station.
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein each of said first and second system parameter values comprises a LOCAID value.
Claim 9
Dependent Claim
19 words
The method of claim 1 wherein each of said first and second system parameter values comprises a SID value.
Claim 10
Dependent Claim
15 words
The method of claim 1 wherein said system access message comprises a registration access message.
Claim 11
Dependent Claim
15 words
The method of claim 1 wherein said system access message comprises a call access message.
Claim 12
Dependent Claim
23 words
The method of claim 1 wherein said system acknowledgement message further includes an indication of the type of said second system parameter value.
Claim 13
Dependent Claim
47 words
The method of claim 1 in wherein said system comprises a plurality of location areas each including at least one cell and wherein said second system parameter value is included only in system acknowledgement messages transmitted in cells on the border between two of said location areas.
Claim 14
Dependent Claim
34 words
The method of claim 1 wherein said second system parameter value is included in said system acknowledgement message only if said mobile station was not registered in the location which received said access message.
Claim 15
Dependent Claim
26 words
The method of claim 1 wherein at least one other system parameter value is transmitted along with each of said first and second system parameter values.
Claim 16
Dependent Claim
34 words
The method of claim 14 wherein each of said first and second parameter values comprises a SID value and said at least one other system parameter value comprises a REGID, REGINCR or LOCAID value.
Claim 17
Dependent Claim
28 words
The method of claim 14 wherein said system acknowledgement message includes an indication of the number and type of system parameter values included in said system acknowledgement message.
Claim 18
Independent Claim
159 words
An apparatus for the registration of mobile stations operating within a radio telecommunications system comprising: means for broadcasting a first system parameter value on a control channel of said system; means for receiving said first system parameter value at one of said mobile stations; means for storing said first system parameter value within a first memory of said mobile station; means for transmitting a system access message from said mobile station to said system; means for transmitting in response to said system access message a system acknowledgement message from said system to said mobile station, said system acknowledgment message including a second system parameter value; means for storing said second system parameter value within a second memory of said mobile station; means for comparing said second system parameter value with said first system parameter value; and means for transmitting a registration message from said mobile station to said system if said first and second system parameter values are different.
Claim 19
Independent Claim
159 words
An apparatus for the registration of mobile stations operating within a radio telecommunications system comprising: means for broadcasting a first system parameter value on a control channel of said system; means for receiving said first system parameter value at one of said mobile stations; means for storing said first system parameter value within a first memory of said mobile station; means for transmitting a system access message from said mobile station to said system; means for transmitting in response to said system access message a system acknowledgement message from said system to said mobile station, said system acknowledgment message including a second system parameter value; means for storing said second system parameter value within a second memory of said mobile station; means for comparing said second system parameter value with said first system parameter value; and means for transmitting a registration message from said mobile station to said system if said first and second system parameter values are different.
Claim 20
Dependent Claim
15 words
The apparatus of claim 17 wherein said system acknowledgement message comprises a registration confirmation message.
Claim 21
Dependent Claim
17 words
The apparatus of claim 17 wherein said system acknowledgement message comprises an initial voice channel designation message.
Claim 22
Dependent Claim
17 words
The apparatus of claim 17 wherein said system acknowledgement message comprises an initial traffic channel designation message.
Claim 23
Dependent Claim
35 words
The apparatus of claim 17 wherein said means for storing said second system parameter value includes: means for analyzing said system acknowledgement message to determine which particular system parameter value is included in said message.
Claim 24
Dependent Claim
29 words
The apparatus of claim 17 wherein said first memory comprises a temporary memory in said mobile station and said second memory comprises a semi-permanent memory in said mobile station.
Claim 25
Dependent Claim
19 words
The apparatus of claim 17 wherein each of said first and second system parameter values comprises a LOCAID value.
Claim 26
Dependent Claim
19 words
The apparatus of claim 17 wherein each of said first and second system parameter values comprises a SID value.
Claim 27
Dependent Claim
15 words
The apparatus of claim 17 wherein said system access message comprises a registration access message.
Claim 28
Dependent Claim
15 words
The apparatus of claim 17 wherein said system access message comprises a call access message.
Claim 29
Dependent Claim
22 words
The apparatus of claim 17 wherein said system acknowledgement message includes an indication of the type of said second system parameter value.
Claim 30
Dependent Claim
46 words
The apparatus of claim 17 wherein said system comprises a plurality of location areas each including at least one cell and wherein said second system parameter value is included only in system acknowledgement messages transmitted in cells on the border between two of said location areas.
Claim 31
Dependent Claim
34 words
The apparatus of claim 17 wherein said second system parameter value is included in said system acknowledgement message only if said mobile station was not registered in the location which received said access message.
Claim 32
Dependent Claim
26 words
The apparatus of claim 17 wherein at least one other system parameter value is transmitted along with each of said first and second system parameter values.
Claim 33
Dependent Claim
34 words
The apparatus of claim 30 wherein each of said first and second parameter values comprises a SID value and said at least one other system parameter value comprises a REGID, REGINCR or LOCAID value.
Claim 34
Dependent Claim
28 words
The apparatus of claim 30 wherein said system acknowledgement message includes an indication of the number and type of system parameter values included in said system acknowledgement message.
References Cited (Backward Citations)
US4775999A
Cited
EP0344989A2
Cited
US5101500A
Cited
US4905301A
Cited
US5109527A
Cited
US5129097A
Cited
US5054110A
Cited
GB2243976A
Cited
US5305466A
Cited
US5142654A
Cited
EP0538014A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-12-11 | 1999-06-12 | 1999-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-11 | 2003-06-12 | 2003-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-11 | 2007-06-12 | 2007-12-12 | $7700.00 | Window Closed / Lapsed |