Patent US5771463A successfully refreshed from Google Patents.
US5771463A
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Method for controlling a subscriber station in a radio system
Assignee: Airbus Defence and Space Oy
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Filing: 1994-12-01
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Granted: 1998-06-23
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Expires: 2014-12-01
Abstract
Abstract A method for controlling a subscriber station communication on a direct mode channel in a radio system, in which at least one base station is communicating via channels, and subscriber stations. To guide a subscriber station to a desired channel at a desired moment, the radio system sends to the sub-scriber station on a direct mode channel a communication information message determining for the subscriber station the moments and the identifiers of the channels at and on which the radio system communicates with the subscriber station on the direct mode channel. The subscriber station stores the information contained in the received communication information message in its memory. The subscriber station communicating on the direct mode channel moves at the moment determined by the communication information message to the channel to be used and communicates with the radio system on that channel.
Inventors
- 👤 Mika Lehmusto
- 👤 Mika Heiskari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:15
CPC Classifications
H; H04; H04W; H04W84/00; H04W84/02; H04W84/04; H04W84/08
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
151 words
A method for controlling a subscriber station communicating on a direct mode channel in a radio system, comprising at least one base station communicating via channels and subscriber stations as well as at least one exchange of the radio system connected to the base stations for establishing telecommunication connections between the subscriber stations, wherein the radio system sends to the subscriber station on the direct mode channel a communication information message determining for the subscriber station on the direct mode channel the moments and the identifiers of the channels at and on which the radio system communicates with the subscriber station, said subscriber station stores the information contained in said received communication information message in its memory, the subscriber station communicating on the direct mode channel moves at said moment determined by the communication information message to said channel to be used and communicates with the radio system on said channel.
Claim 2
Independent Claim
151 words
A method for controlling a subscriber station communicating on a direct mode channel in a radio system, comprising at least one base station communicating via channels and subscriber stations as well as at least one exchange of the radio system connected to the base stations for establishing telecommunication connections between the subscriber stations, wherein the radio system sends to the subscriber station on the direct mode channel a communication information message determining for the subscriber station on the direct mode channel the moments and the identifiers of the channels at and on which the radio system communicates with the subscriber station, said subscriber station stores the information contained in said received communication information message in its memory, the subscriber station communicating on the direct mode channel moves at said moment determined by the communication information message to said channel to be used and communicates with the radio system on said channel.
Claim 3
Dependent Claim
56 words
A method according to claim 1, wherein said radio telephone system maintains a database, in which are stored information of on which direct mode channel and/or within the coverage area of which base station each subscriber on direct mode channels is communicating, and the radio telephone system utilizes this information when sending said communication information message.
Claim 4
Dependent Claim
28 words
A method according to claim 1, wherein said communication information message is sent to said subscriber station when there is no other traffic on said direct mode channel.
Claim 5
Dependent Claim
31 words
A method according to claim 1, wherein said communication information message is sent on the direct mode channel to said subscriber station simultaneously with other traffic on the direct mode channel.
Claim 6
Dependent Claim
25 words
A method according to claim 1, wherein the subscriber station sends an acknowledgement message to the radio system upon receipt of said communication information message.
Claim 7
Dependent Claim
49 words
A method according to claim 1, wherein said communication information message contains its own identifier, information of a desired receiver or receivers as well as an identifier of the base station and/or an identifier of the channel through which the radio system will later communicate with the subscriber station.
Claim 8
Dependent Claim
43 words
A method according to claim 6, wherein said communication information message further contains a priority information telling the importance of a connection to be established between the radio system and the subscriber station in relation to the earlier connections of the subscriber station.
Claim 9
Dependent Claim
23 words
A method according to claim 7, wherein said communication information message also contains an identifier of the service said communication information message concerns.
Claim 10
Dependent Claim
23 words
A method according to claim 6, wherein said communication information message also contains an identifier of the service said communication information message concerns.
Claim 11
Dependent Claim
91 words
A radio system, comprising: at least one base station, subscriber stations connected to base stations by radio, at least one exchange of the radio system, connected to the base stations, for establishing telecommunication connections between the subscriber stations, communication means for forming a communication information message, which tells the subscriber station on the direct mode channel the moments and the identifiers of the channels at and on which the radio system communicates with the subscriber station, and for sending said message on the direct mode channel to the desired subscriber station.
Claim 12
Dependent Claim
91 words
A radio system, comprising: at least one base station, subscriber stations connected to base stations by radio, at least one exchange of the radio system, connected to the base stations, for establishing telecommunication connections between the subscriber stations, communication means for forming a communication information message, which tells the subscriber station on the direct mode channel the moments and the identifiers of the channels at and on which the radio system communicates with the subscriber station, and for sending said message on the direct mode channel to the desired subscriber station.
Claim 13
Dependent Claim
64 words
A radio system according to claim 10, wherein the system further comprises a database maintaining information of on which direct mode channel and/or within the coverage area of which base station each subscriber station on the direct mode channel is communicating and on the basis of which information a communication information message is sent to said subscriber station through a desired direct mode channel.
Claim 14
Dependent Claim
103 words
A subscriber station of a radio system, comprising: a transceiver, a user interface, a controller for controlling the operation of the subscriber station, a memory means arranged to store the information contained in a communication information message received by the subscriber station on the direct mode channel of the moments and the channels at and on which the radio system communicates with the subscriber station, and control means for tuning the transceiver of the subscriber station, under forced control or controlled by the user, to communicate with the radio system at the moment and on the channel indicated by the communication information message.
Claim 15
Dependent Claim
103 words
A subscriber station of a radio system, comprising: a transceiver, a user interface, a controller for controlling the operation of the subscriber station, a memory means arranged to store the information contained in a communication information message received by the subscriber station on the direct mode channel of the moments and the channels at and on which the radio system communicates with the subscriber station, and control means for tuning the transceiver of the subscriber station, under forced control or controlled by the user, to communicate with the radio system at the moment and on the channel indicated by the communication information message.
Claim 16
Dependent Claim
109 words
A subscriber station according to claim 12, wherein the subscriber station further comprises comparing means for comparing a priority contained in the communication information message received by the subscriber station with the priority of the call in which the subscriber station has participated on a direct mode channel and for tuning the transceiver of the subscriber station under forced control to communicate with the radio system at the moment and on the channel indicated by said communication information message, in case the priority contained in the communication information message is higher than the priority of the call in which the subscriber station has participated on the direct mode channel.
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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) | 2001-06-22 | 2001-12-22 | 2002-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-22 | 2005-12-22 | 2006-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-22 | 2009-12-22 | 2010-06-23 | $7700.00 | Window Closed / Lapsed |