Abstract
A method and apparatus which permits handoffs while the mobile station is in the system access state. This is achieved by providing for channel assignment messages to be sent over the paging channel of a plurality of base stations which increases the probability of one of the messages getting through. In addition this assures the mobile station will be able handoff to a different base station and have a traffic channel allocated to it on the new base station without delay. In addition a method and apparatus which permits the mobile station to be directly assigned into a soft handoff state upon traffic channel assignment.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
Not Available | 18/10/2001 | ISLD-200111-002 | QUALCOMM INC | No | Family Member | ||||
Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC | No | Family Member | ||||
Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC | Yes | Basis Patent |
Specification Information
Specification Information
Technologies
Family Information
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All Pending Patents In Patent Family : | ---- |
Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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AU3381297A | Not Available | 18/10/2001 | ISLD-200111-002 | QUALCOMM INC |
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AU3381297A | Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC |
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AU3381297A | Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC |
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AU717217B2 | Not Available | 18/10/2001 | ISLD-200111-002 | QUALCOMM INC |
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AU717217B2 | Not Available | 12/06/2006 | ISLD-200612-006 | QUALCOMM INC |
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Yes | Basis Patent | |||
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
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Technologies
Product
Use Cases

Services
Claim
1. A method for performing idle handoff comprising the steps of:', 'measuring, at a mobile station in an idle state, received signal energies from a plurality of base stations;', 'compiling, at said mobile station, a first set of base stations with received energies exceeding a predetermined threshold;', 'determining a second set of said plurality of base stations with resources to provide communications to said mobile station; and', 'performing an idle handoff by the mobile station in an access state to a base station common to said first set and said second set.
2. The method of claim 1 further comprising the step of transmitting a message indicative of said second set of base stations to said mobile station.
3. The method of claim 2 wherein said transmitting a message indicative of said second set of base stations to said mobile station comprises:', 'transmitting a message indicative of said second set of base stations from a single base station.
4. The method of claim 2 wherein said transmitting a message indicative of said second set of base stations to said mobile station comprises:', 'transmitting a message indicative of said second set of base stations from a plurality of base stations.
5. The method of claim 2 further comprising:', 'transmitting a message indicative of the base stations in common with said first set of base stations and said second set of base stations from said mobile.
6. The method of claim 1 further comprising transmitting a message indicative of said first set of base stations from said mobile station.
7. The method of claim 6 further comprising the step of transmitting a message indicative of the base stations in common with said first set of base stations and said second set of base stations.
8. The method of claim 7 wherein said message indicative of the base stations in common with said first set of base stations and said second set of base stations is transmitted from a single base station.
9. The method of claim 7 wherein said message indicative of the base stations in common with said first set of base stations and said second set of base stations is transmitted from a plurality of base stations
10. The method of claim 9 wherein said plurality of base stations are the base stations in common with said first set of base stations and said second set of base stations
11. A method for transitioning a mobile station from an idle state to a soft handoff, comprising:', 'transmitting a list containing identifiers of base stations to which the mobile station in an idle state is permitted to perform an idle handoff;', 'transitioning the mobile station from an idle state to a soft handoff with a subset of the base stations identified in the list; and', 'transmitting a traffic channel assignment message indicating traffic channel allocated by each base station of the subset of base stations identified in the list
12. The method as claimed in claim 11 herein said transmitting a traffic channel assignment message indicating traffic channel allocated by each base station of the subset of base station identified in the list comprises:', 'transmitting a traffic channel assignment message from each base station identified in the list
13. The method as claimed in claim 11 wherein said transmitting a traffic channel assignment message indicating traffic channel allocated by each base station of the subset of base station comprises:', 'transmitting a traffic channel assignment message via a paging channel
14. The method as claimed in claim 11 wherein said transitioning the mobile station from an idle state to a soft handoff with a subset of base stations identified in the list comprises:', 'transitioning the mobile station from an idle state to a soft handoff with all base stations identified in the list
15. A method for transitioning a mobile station from an idle state to a soft handoff, comprising:', 'measuring signal energies received from a plurality of base stations at a mobile station in an idle state;', 'compiling a first list containing identifiers of base stations with received signal energies exceeding a predetermined threshold at the mobile station;', 'determining a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list;', 'transitioning the mobile station from an idle state to a soft handoff with a subset of the base stations identified by the second list; and', 'transmitting a traffic channel assignment message indicating traffic channel allocated by each base station identified by the second list
16. The method as claimed in claim 15 wherein said determining a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list comprises:', 'determining a third list containing identifiers of base stations with sufficient resources to provide communications to the mobile station; and', 'forming a second list containing identifiers of base stations common to the first list and the third list
17. The method as claimed in claim 15 wherein said determining a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list comprises:', 'determining the second list at the mobile station
18. The method as claimed in claim 17 wherein said determining the second list at the mobile station comprises:', 'receiving the second list transmitted from at least one of said plurality of base stations at the mobile station
19. The method as claimed in claim 15 wherein said determining a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list comprises:', 'determining the second list at a base station.
20. The method as claimed in claim 15 wherein said determining a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list comprises:', 'determining the second list at a base station controller.
21. The method as claimed in claim 15 wherein said transmitting a traffic channel assignment message indicating traffic channel allocated by each base station identified by the second list comprises:', 'transmitting a traffic channel assignment message from each of the base stations identified in the second list.
22. The method as claimed in 15 wherein said transmitting a traffic channel assignment message indicating traffic channel allocated by each base station identified by the second list from a subset of the plurality of base stations comprises:', 'transmitting a traffic channel assignment message via a paging channel.
23. The method as claimed in claim 15 wherein said transitioning the mobile station from an idle state to a soft handoff with a subset of base stations identified by the second list comprises:', 'transitioning the mobile station from an idle state to a soft handoff with all base stations identified in the second list.
24. An apparatus for transitioning a mobile station from an idle state to a soft handoff, comprising:', 'a plurality of base stations configured to:', 'transmit a list containing identifiers of base stations to which the mobile station in an idle state is permitted to perform an idle handoff; and', 'a mobile station configured to:', 'transition from an idle state to a soft handoff with a subset of base stations identified in the list,', 'wherein said plurality of base stations are further configured to:', 'transmit a traffic channel assignment message indicating traffic channel allocated by each base station of the subset of base stations identified in the list.
25. The apparatus as claimed in claim 24 wherein said plurality of base stations are configured to:', 'transmit a traffic channel assignment message if a base station from said plurality of base stations is identified in the list.
26. The apparatus as claimed in claim 24 wherein said plurality of base stations are further configured to:', 'transmit a traffic channel assignment message via a paging channel.
27. The apparatus as claimed in claim 34 wherein the subset of base stations identified in the list comprises all base stations identified in the list.
28. An apparatus for transitioning a mobile station from an idle state to a soft handoff, comprising:', 'a processor; and', 'a storage medium coupled to the processor and containing a set of instructions executable by the processor to:', 'determine a first list containing identifiers of base stations with resources to provide communications to the mobile station;', 'determine a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list; and', 'cause transition of the mobile station from an idle state to a soft handoff with a subset of base stations identified by the second list,', 'wherein said processor causes transition of the mobile station from an idle state to a soft handoff with a subset of base stations identified by the second list by executing a set of instructions to:', 'cause transmission of a traffic channel assignment message indicating traffic channel allocated by each base station identified in the second list.
29. The apparatus as claimed in claim 28 wherein said processor and said storage medium are disposed in a base station controller.
30. The apparatus as claimed in claim 28 wherein said processor and said storage medium are disposed in a base station.
31. The apparatus as claimed in claim 28 wherein said processor determines a second list containing identifiers of base stations to which the mobile station is allowed to perform an idle handoff in accordance with the first list by executing a set of instructions to:', 'accept a third list containing identifiers of base stations whose signal energies received at a mobile station in an idle state exceed a predetermined threshold; and', 'form a second list containing identifiers of base stations common to the first list and the third list.
32. The apparatus as claimed in claim 28 wherein said processor causes transmission of a traffic channel assignment message indicating traffic channel allocated by each base station identified by the second list by executing a set of instructions to:', 'cause transmission of a traffic channel assignment message from each base station identified in the second list.
33. The apparatus as claimed in claim 28 wherein said processor causes transmission of a traffic channel assignment message indicating traffic channel allocated by each base station identified by the second list from a subset of a plurality of base stations by executing a set of instructions to:', 'cause transmission of a traffic channel assignment message via a paging channel.
34. The apparatus as claimed in claim 28 wherein said processor causes transition of the mobile station from an idle state to a soft handoff with all base stations identified by the second list.']
Associated Portfolios

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SUMMARY
ClaimChart-US6674736B1-STO
Patent number:US6674736B1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.