US6463307B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for power saving in a mobile terminal with established connections
Assignee: Wi-Fi One LLC
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Filing: 1998-08-14
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Granted: 2002-10-08
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Expires: 2018-08-14
Abstract
Abstract Power consumption of a mobile terminal is reduced by providing a system wherein a base station specifies a time period, at the end of which a mobile terminal that is hibernating in a power-saving mode will listen for paging messages from the base station. If no paging messages are present, then the mobile terminal continues hibernating, thus conserving battery power by not communicating with the base station. Either the base station or the mobile terminal can initiate a process to transfer the mobile terminal from an awake mode to a hibernating mode. In accordance with another embodiment of the invention for use in systems that require frequent connectivity testing, an agent can be provided within the base station to answer connectivity test inquiries on behalf of the mobile terminal. The mobile terminal can communicate periodically with the base station to update information that the agent uses to respond to the test inquiries.
Inventors
- 👤 Mikael Larsson
- 👤 Peter Larsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:59
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607; H04B1/1615; H04B7/00; H04B7/24; H04B7/26; H04W52/0209; H04W52/0212; H04W52/0216; H04W24/00; H04W52/0219; H04W68/00; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
256 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; determining when the first mobile terminal is in the hibernation state; buffering at least one data packet at the base station for later transfer to the first mobile terminal while the first mobile terminal is in the hibernation state; receiving a paging message from the base station at the first mobile terminal when the first mobile terminal is listening for paging messages; changing the first mobile terminal from the hibernation state to the awake state when receiving the paging message; receiving a paging acknowledgment signal from the first mobile terminal at the base station; in response to the base station receiving the paging acknowledgment signal, recognizing that the first mobile terminal has changed to the awake state; transferring the buffered at least one data packet from the base station to the first mobile terminal in response to the paging acknowledgment signal.
Claim 2
Independent Claim
256 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; determining when the first mobile terminal is in the hibernation state; buffering at least one data packet at the base station for later transfer to the first mobile terminal while the first mobile terminal is in the hibernation state; receiving a paging message from the base station at the first mobile terminal when the first mobile terminal is listening for paging messages; changing the first mobile terminal from the hibernation state to the awake state when receiving the paging message; receiving a paging acknowledgment signal from the first mobile terminal at the base station; in response to the base station receiving the paging acknowledgment signal, recognizing that the first mobile terminal has changed to the awake state; transferring the buffered at least one data packet from the base station to the first mobile terminal in response to the paging acknowledgment signal.
Claim 3
Dependent Claim
96 words
The method of claim 1 further comprising the steps of: sending a capacity request from the first mobile terminal to the base station; automatically changing the first mobile terminal from the hibernation state to the awake state when sending the capacity request; recognizing that the first mobile terminal has changed to the awake state when receiving the capacity request at the base station; receiving an uplink slot assignment from the base station at the first mobile terminal; and sending a data packet from the first mobile terminal to the base station via the assigned uplink slot.
Claim 4
Independent Claim
216 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; determining when the time period has expired; upon expiration of the time period, determining whether a paging message from the base station is present; receiving the paging message at the first mobile terminal when it is determined that the paging message is present; acknowledging the paging message with an acknowledgment signal; changing the first mobile terminal from the hibernation state to the awake state when acknowledging the paging message; recognizing that the first mobile terminal has changed to the awake state when receiving the acknowledgment signal at the base station; and receiving at least one data packet from the base station.
Claim 5
Independent Claim
216 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; determining when the time period has expired; upon expiration of the time period, determining whether a paging message from the base station is present; receiving the paging message at the first mobile terminal when it is determined that the paging message is present; acknowledging the paging message with an acknowledgment signal; changing the first mobile terminal from the hibernation state to the awake state when acknowledging the paging message; recognizing that the first mobile terminal has changed to the awake state when receiving the acknowledgment signal at the base station; and receiving at least one data packet from the base station.
Claim 6
Dependent Claim
41 words
The method of claim 3 , further comprising the steps of keeping the first mobile terminal in the hibernation state when it is determined that no paging messages are present and the time period has expired, and restarting the time period.
Claim 7
Dependent Claim
32 words
The method of claim 4 , further comprising the step of periodically sending a report from the mobile terminal to the base station while the mobile terminal remains in the hibernation state.
Claim 8
Independent Claim
207 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, wherein the base station is connected to a network that periodically sends connectivity test messages to the first mobile terminal, and the base station includes an agent having a database that mirrors a managed information base of the first mobile terminal, the method comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; intercepting a connectivity test message from the network intended for the first mobile terminal; replying to the connectivity test message using the agent; requesting updated information regarding the first mobile terminal; receiving updated information from the first mobile terminal; and updating the agent database using the received updated information.
Claim 9
Independent Claim
207 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, wherein the base station is connected to a network that periodically sends connectivity test messages to the first mobile terminal, and the base station includes an agent having a database that mirrors a managed information base of the first mobile terminal, the method comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; intercepting a connectivity test message from the network intended for the first mobile terminal; replying to the connectivity test message using the agent; requesting updated information regarding the first mobile terminal; receiving updated information from the first mobile terminal; and updating the agent database using the received updated information.
Claim 10
Dependent Claim
27 words
The method of claim 6 , wherein the step of updating the agent database is performed less often than the step of receiving the connectivity test message.
Claim 11
Independent Claim
236 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, wherein the base station is connected to a network that periodically sends connectivity test messages to the first mobile terminal, and the base station includes an agent having a database that mirrors a managed information base of the first mobile terminal, the method comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; intercepting a connectivity test message from the network intended for the first mobile terminal; replying to the connectivity test message using the agent; determining whether it is time to send updated information regarding the first mobile terminal to the agent; when it is time to send updated information regarding the first mobile terminal to the agent, automatically sending the updated information from the mobile terminal to the agent; and updating the agent database using the received updated information.
Claim 12
Independent Claim
236 words
A method for reducing power consumption in a first mobile terminal having an established wireless communication connection with a base station, wherein the base station is connected to a network that periodically sends connectivity test messages to the first mobile terminal, and the base station includes an agent having a database that mirrors a managed information base of the first mobile terminal, the method comprising the steps of: sending a hibernation request from the first mobile terminal to the base station; determining a hibernation request response, the response comprising a parameter indicating a length of a time period; sending the hibernation request response from the base station to the mobile terminal; changing the first mobile terminal from an awake state to a hibernation state in accordance with parameters in the hibernation request response; beginning the time period when changing to the hibernation state; listening for paging messages from the base station at the end of the time period; intercepting a connectivity test message from the network intended for the first mobile terminal; replying to the connectivity test message using the agent; determining whether it is time to send updated information regarding the first mobile terminal to the agent; when it is time to send updated information regarding the first mobile terminal to the agent, automatically sending the updated information from the mobile terminal to the agent; and updating the agent database using the received updated information.
Claim 13
Dependent Claim
25 words
The method of claim 8 , wherein the step of automatically sending is performed less often than the step of receiving the connectivity test message.
References Cited (Backward Citations)
WO1990010987A2
Cited
US5128938A
Cited
US5940771A
Cited
US6192230B1
Cited
US5883885A
Cited
WO1996027993A1
Cited
US5903552A
Cited
US6018661A
Cited
US5710975A
Cited
US5799256A
Cited
US5991618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-10-07 | 2006-04-08 | 2006-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-10-07 | 2010-04-08 | 2010-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-10-07 | 2014-04-08 | 2014-10-08 | $7700.00 | Window Closed / Lapsed |