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US5745481A
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Message system and method for efficient multi-frequency roaming
Assignee: Google Technology Holdings LLC
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Filing: 1996-06-03
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Granted: 1998-04-28
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Expires: 2016-06-03
Abstract
Abstract A messaging system capable of transmitting messages to receivers which roam between coverage areas. In one configuration, a coverage area (600) is divided into a plurality of zones (605, 610, 615). A single simulcast system identification (SSID) number is assigned which consists of a local identification number which identifies the coverage area (600), a zone identifier which identifies a zone (610) within the coverage area, traffic splitting flags and a frequency. For larger roaming areas, a network is defined as consisting of a plurality of service areas and is identified by network identification information (NID). NID information and/or SSID information along with a priority value is stored in a receiver according to desired coverage and like information is transmitted in the corresponding zone or service area and the roaming pager operates on the frequency having the NID or SSID having the highest priority.
Inventors
- 👤 W. Garland Phillips
- 👤 Jheroen P. Dorenbosch
- 👤 Terence Edward Sumner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:51
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/65; H04H20/67; H04W; H04W84/00; H04W84/02; H04W84/022
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
131 words
A method for efficient multi-frequency roaming and messaging for a plurality of selective call receivers in a selective call messaging system using identifiers on various communication resources recognized by at least one of the plurality of selective call receivers, comprising the steps of: storing a priority value assigned to at least one of the identifiers for at least one of the plurality of selective call receivers in a memory at a home input terminal; matching at least one identifier with at least one of the identifiers on a set of available communication resources found at an output controller terminal providing an identifier with a highest priority value; and transmitting an associated message on at least one of the set of available communication resources having the identifier with the highest priority value.
Claim 2
Independent Claim
131 words
A method for efficient multi-frequency roaming and messaging for a plurality of selective call receivers in a selective call messaging system using identifiers on various communication resources recognized by at least one of the plurality of selective call receivers, comprising the steps of: storing a priority value assigned to at least one of the identifiers for at least one of the plurality of selective call receivers in a memory at a home input terminal; matching at least one identifier with at least one of the identifiers on a set of available communication resources found at an output controller terminal providing an identifier with a highest priority value; and transmitting an associated message on at least one of the set of available communication resources having the identifier with the highest priority value.
Claim 3
Dependent Claim
55 words
The method of claim 1, wherein the step of matching the at least one identifier with at least one of the set of available communication resources found at the output controller terminal is done at the home input terminal before the priority value, identifier, and associated message are subsequently forwarded to the output controller terminal.
Claim 4
Dependent Claim
36 words
The method of claim 1, wherein the method further comprises forwarding the priority value and an associated message and identifier to the output controller terminal before the matching step is done at the output controller terminal.
Claim 5
Dependent Claim
12 words
The method of claim 1, wherein the communication resource comprises a frequency.
Claim 6
Dependent Claim
23 words
The method of claim 1, wherein a communication resource from the set of available communication resources comprises a given frequency and time slot.
Claim 7
Dependent Claim
29 words
The method of claim 1, wherein the identifier comprise a network roaming identifier (NID) associated with network wide frequencies and simulcast system identifier (SSID) associated with local system frequencies.
Claim 8
Independent Claim
157 words
A method for efficient multi-frequency roaming and messaging for a plurality of selective call receivers in a selective call messaging system using network roaming identifiers (NIDs) associated with network wide frequencies and/or simulcast system identifiers (SSIDs) associated with local system frequencies comprising the steps of: storing a priority value assigned to at least one NID and/or at least one SSID for at least one of the plurality of selective call receivers in a subscriber database at a home input terminal; forwarding the priority value and an associated message to an output controller terminal; matching the at least one NID or the at least one SSID on at least one of a set of available frequencies at the output controller terminal; and transmitting the associated message on at least one of the set of available frequencies matching a highest priority value to the at least one NID or the at least one SSID having a highest priority value.
Claim 9
Independent Claim
157 words
A method for efficient multi-frequency roaming and messaging for a plurality of selective call receivers in a selective call messaging system using network roaming identifiers (NIDs) associated with network wide frequencies and/or simulcast system identifiers (SSIDs) associated with local system frequencies comprising the steps of: storing a priority value assigned to at least one NID and/or at least one SSID for at least one of the plurality of selective call receivers in a subscriber database at a home input terminal; forwarding the priority value and an associated message to an output controller terminal; matching the at least one NID or the at least one SSID on at least one of a set of available frequencies at the output controller terminal; and transmitting the associated message on at least one of the set of available frequencies matching a highest priority value to the at least one NID or the at least one SSID having a highest priority value.
Claim 10
Dependent Claim
38 words
The method of claim 7, wherein the step of transmitting the associated messages comprises transmitting on more than one frequency if the priority values among the at least one NID or the at least one SSID are equal.
Claim 11
Dependent Claim
59 words
The method of claim 7, wherein the step of forwarding the priority value and the associated message to the output terminal is done when the particular selective call receiver user notifies the home input terminal that the user will be within the region of a particular output controller terminal or regions of more than one particular output controller terminal.
Claim 12
Dependent Claim
49 words
The method of claim 7, wherein the step of forwarding the priority value and the associated message to the output terminal is done when the particular selective call receiver user notifies the home input terminal that the user will be outside the region of the user's home input terminal.
Claim 13
Dependent Claim
32 words
The method of claim 7, wherein the step of forwarding the priority value and the associated message to the output terminal further comprises the step of forwarding the associated NIDs and SSIDs.
Claim 14
Dependent Claim
131 words
An efficient multi-frequency roaming and selective call messaging system using at least one identifier on various communication resources, the identifier stored and recognized by at least one of a plurality of selective call receivers used within the selective call messaging system, comprising: a home input terminal for storing a priority value assigned to at least one identifier for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for assigning communication resources and for receiving the priority value, the at least one identifier, and an associated message from the home input terminal, wherein the output controller terminal matches the identifier having a highest priority with the communication resource having the identifier at the output controller terminal.
Claim 15
Dependent Claim
131 words
An efficient multi-frequency roaming and selective call messaging system using at least one identifier on various communication resources, the identifier stored and recognized by at least one of a plurality of selective call receivers used within the selective call messaging system, comprising: a home input terminal for storing a priority value assigned to at least one identifier for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for assigning communication resources and for receiving the priority value, the at least one identifier, and an associated message from the home input terminal, wherein the output controller terminal matches the identifier having a highest priority with the communication resource having the identifier at the output controller terminal.
Claim 16
Dependent Claim
28 words
The system of claim 12, wherein the system further comprises a transmitter for transmitting the associated message on the communication resource having the identifier with the highest priority.
Claim 17
Dependent Claim
12 words
The system of claim 12, wherein the communication resource comprises a frequency.
Claim 18
Dependent Claim
16 words
The system of claim 12, wherein the communication resource comprises a given frequency and time slot.
Claim 19
Dependent Claim
30 words
The system of claim 12, wherein the identifier comprise a network roaming identifier (NID) associated with network wide frequencies and a simulcast system identifier (SSID) associated with local system frequencies.
Claim 20
Dependent Claim
22 words
The system of claim 12, wherein the messaging system is a one-way paging system using a time division multiplexed over-the-air paging protocol.
Claim 21
Dependent Claim
136 words
An efficient multi-frequency roaming and selective call messaging system using at least one identifier on various communication resources, the identifier stored and recognized by at least one of a plurality of selective call receivers used within the selective call messaging system, comprising: a home input terminal for storing a priority value assigned to at least one identifier for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for assigning communication resources, wherein the home input terminal matches the at least one identifier with a highest priority value with a known identifier on an available communication resource at the output controller terminal and then the home input terminal forwards the matched identifier and an associated message to the output controller terminal.
Claim 22
Dependent Claim
136 words
An efficient multi-frequency roaming and selective call messaging system using at least one identifier on various communication resources, the identifier stored and recognized by at least one of a plurality of selective call receivers used within the selective call messaging system, comprising: a home input terminal for storing a priority value assigned to at least one identifier for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for assigning communication resources, wherein the home input terminal matches the at least one identifier with a highest priority value with a known identifier on an available communication resource at the output controller terminal and then the home input terminal forwards the matched identifier and an associated message to the output controller terminal.
Claim 23
Dependent Claim
130 words
An efficient multi-frequency roaming and selective call messaging system using network roaming identifiers (NIDs) associated with network wide frequencies and simulcast system identifiers (SSIDs) associated with local system frequencies for transmission of messages to a plurality of selective call receivers, comprising: a home input terminal for storing a priority value assigned to at least one NID and/or at least one SSID for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for receiving the priority value and an associated message from the home input terminal, wherein the output controller terminal matches the at least one NID or the at least one SSID on at least one of the available frequencies at the output terminal.
Claim 24
Dependent Claim
130 words
An efficient multi-frequency roaming and selective call messaging system using network roaming identifiers (NIDs) associated with network wide frequencies and simulcast system identifiers (SSIDs) associated with local system frequencies for transmission of messages to a plurality of selective call receivers, comprising: a home input terminal for storing a priority value assigned to at least one NID and/or at least one SSID for at least one of the plurality of selective call receivers in a subscriber database; and an output controller terminal networked to the home input terminal for receiving the priority value and an associated message from the home input terminal, wherein the output controller terminal matches the at least one NID or the at least one SSID on at least one of the available frequencies at the output terminal.
Claim 25
Dependent Claim
47 words
The system of claim 19, wherein the system further comprises a transmitter for transmitting the associated message on at least one of the available frequencies matching the highest priority value to the at least one NID or the at least one SSID having the highest priority value.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-27 | 2001-10-27 | 2002-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-27 | 2005-10-27 | 2006-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-27 | 2009-10-27 | 2010-04-28 | $7700.00 | Window Closed / Lapsed |