US5878038A
Expired / Lapsed
US
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Method in a wireless code division multiple access communication system for delivering a message to a mobile communication unit
Assignee: Google Technology Holdings LLC
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Filing: 1997-02-28
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Granted: 1999-03-02
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Expires: 2017-02-28
Abstract
Abstract The method operates in a wireless code division multiple access (CDMA) communication system (10) which includes a fixed communication unit (114). The fixed communication unit has a plurality of paging channels (230, 235) and a plurality of traffic channels (245, 247). A mobile communication unit (320) is responsive to the fixed communication unit via an active paging channel of the plurality of paging channels. The method includes selecting a paging channel of the plurality of paging channels over which to transmit the message to form a selected paging channel (410); transmitting a preliminary message via each of the plurality of paging channels (415), the preliminary message comprising the selected paging channel; and transmitting the message over the selected paging channel (425), the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active paging channel.
Inventors
- 👤 William D. Willey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:55
CPC Classifications
H; H04; H04W; H04W68/00; H04J; H04J13/00; H04J13/16; H04W48/00; H04W48/08; H04W48/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
165 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a plurality of paging channels and a plurality of traffic channels and a mobile communication unit responsive thereto via an active paging channel of the plurality of paging channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a paging channel of the plurality of paging channels over which to transmit the message to form a selected paging channel; transmitting a preliminary message via each of the plurality of paging channels, the preliminary message comprising the selected paging channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected paging channel; and transmitting the message over the selected paging channel, the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active paging channel.
Claim 2
Dependent Claim
165 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a plurality of paging channels and a plurality of traffic channels and a mobile communication unit responsive thereto via an active paging channel of the plurality of paging channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a paging channel of the plurality of paging channels over which to transmit the message to form a selected paging channel; transmitting a preliminary message via each of the plurality of paging channels, the preliminary message comprising the selected paging channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected paging channel; and transmitting the message over the selected paging channel, the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active paging channel.
Claim 3
Dependent Claim
16 words
The method according to claim 1, wherein the selected time is included in the preliminary message.
Claim 4
Dependent Claim
23 words
The method according to claim 1, wherein the preliminary message indicates a broadcast address associated with a predetermined group of mobile communication units.
Claim 5
Dependent Claim
20 words
The method according to claim 1, wherein the preliminary message indicates a timing offset associated with the selected paging channel.
Claim 6
Dependent Claim
23 words
The method according to claim 1, wherein the selected paging channel is a least loaded paging channel of the plurality of paging channels.
Claim 7
Dependent Claim
16 words
The method according to claim 1, wherein the fixed communication unit comprises a base station system.
Claim 8
Dependent Claim
162 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a plurality of paging channels and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a paging channel of the plurality of paging channel over which to transmit the message to form a selected paging channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected paging channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected paging channel; and transmitting the message over the selected paging channel, the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active traffic channel.
Claim 9
Dependent Claim
162 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a plurality of paging channels and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a paging channel of the plurality of paging channel over which to transmit the message to form a selected paging channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected paging channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected paging channel; and transmitting the message over the selected paging channel, the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active traffic channel.
Claim 10
Dependent Claim
151 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via the paging channel, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected traffic channel; transmitting a preliminary message via the paging channel, the preliminary message comprising the selected traffic channel; and transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the paging channel.
Claim 11
Dependent Claim
151 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via the paging channel, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected traffic channel; transmitting a preliminary message via the paging channel, the preliminary message comprising the selected traffic channel; and transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the paging channel.
Claim 12
Dependent Claim
160 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected traffic channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected traffic channel; and transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the active traffic channel.
Claim 13
Dependent Claim
160 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; selecting a time at which to transmit the message, the selected time based on a worst-case delay associated with the mobile communication unit beginning to receive the selected traffic channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected traffic channel; and transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the active traffic channel.
Claim 14
Dependent Claim
49 words
The method according to claim 9, further comprising the steps of: comparing a frequency associated with the active traffic channel with a frequency associated with the selected traffic channel; and based on the comparison, handing off the active traffic channel to the frequency associated with the selected traffic channel.
Claim 15
Dependent Claim
167 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected traffic channel; transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the active traffic channel; comparing a frequency associated with the active traffic channel with a frequency associated with the selected traffic channel; and based on the comparison, handing off the active traffic channel to the frequency associated with the selected traffic channel.
Claim 16
Dependent Claim
167 words
In a wireless code division multiple access (CDMA) communication system having a fixed communication unit, the fixed communication unit having a paging channel and a plurality of traffic channels and a mobile communication unit responsive thereto via an active traffic channel of the plurality of traffic channels, a method for distributing a message to the mobile communication unit, comprising the steps of: selecting a traffic channel of the plurality of traffic channels over which to transmit the message to form a selected traffic channel; transmitting a preliminary message via the active traffic channel, the preliminary message comprising the selected traffic channel; transmitting the message over the selected traffic channel, the mobile communication unit receiving the message over the selected traffic channel while continuing to monitor the active traffic channel; comparing a frequency associated with the active traffic channel with a frequency associated with the selected traffic channel; and based on the comparison, handing off the active traffic channel to the frequency associated with the selected traffic channel.
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) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |