Preemptive power-up method for protecting system users from sudden high speed data

• US 6,781,969 B2
• Filed: 02/08/2001
• Issued: 08/24/2004
• Est. Priority Date: 02/08/2001
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Nikides, Robert S., Harris, John M.
• Primary Examiner(s): Patel, Ajit
• Assistant Examiner(s): BLOUNT, STEVEN
• Application Number:
  US09/779,793
• Publication Number:
  US 20020105923A1
• Time in Patent Office: 1,293 Days
• Field of Search: 370/318, 370/437, 370/252, 370/329, 370/341, 370/332, 370/333, 370/310, 370/311, 455/13.4, 455/67.13, 455/63.1, 455/452.2, 455/509, 455/69
• US Class Current: 370/318
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/286 during data packet transmission, e.g. high speed packet access [HSPA]
• CPC Class Codes: H04W 52/34 TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment

Abstract

A method is provided for preemptively protecting mobile units within a wireless communication system from interference caused by sudden high speed data transmission within the system. The method includes detecting an imminent high speed data transmission in at least one particular cell of the system. At least each current local mobile unit is identified that is in signal communication with a base station of the at least one particular cell. A current operating level for at least each of the current local mobile units is determined. A necessary increase in the current operating level is estimated for at least each of the current local mobile units. A transmit time is predicted for when the imminent high speed data transmission will occur. The current operating level for at least each of the current local mobile units is increased by the corresponding necessary operating level increase at a time no later than the predicted transmit time.

Claims

1. A method for preemptively protecting users within a wireless communication system from high speed data transmission interference within the system, the method comprising the steps of:

detecting an imminent high speed data transmission in at least one particular cell of the system;

identifying at least each current local mobile unit in signal communication with a base station of the at least one particular cell;

determining a current operating level for at least each of the current local mobile units;

estimating a necessary increase in the current operating level for at least each of the current local mobile units;

predicting a transmit time when the imminent high speed data transmission will occur; and

increasing the current operating level for at least each of the current local mobile units by the corresponding necessary increase at a time no later than the predicted transmit time.

2. A method according to claim 1, wherein the step of identifying further comprises:

also identifying current other mobile units located in neighboring cells that are in signal communication with the base station of the at least one particular cell.

3. A method according to claim 2, wherein the steps of determining and estimating each further comprise:

determining a current operating level for each of the current other mobile units; and

estimating a necessary increase in the current operating level for each of the current other mobile units.

4. A method according to claim 1, wherein the step of detecting further comprises:

recognizing high speed data that is queued for transmission over a channel of the communication system.

5. A method according to claim 4, wherein the step of detecting further comprises:

detecting both a requested operating level gain and a requested data transmission rate of the queued high speed data.

6. A method according to claim 1, wherein the steps of identifying and determining each further comprise:

monitoring channel allocation and usage within the communication system.

7. A method according to claim 1, further comprising the step of:

implementing the step of increasing during a forward link transmission from the base station of the at least one particular cell to each of the current local mobile units.

8. A method according to claim 7, wherein the steps of determining and estimating each further comprise:

determining a current operating power level for at least each of the current local mobile units; and

estimating a necessary power level increase for at least each of the current local mobile units.

9. A method according to claim 8, further comprising the steps of:

also identifying current other mobile units located in neighboring cells that are in signal communication with the base station of the at least one particular cell;

also determining a current operating power level for each of the current other mobile units; and

also estimating a necessary increase in the current operating power level for each of the current other mobile units.

10. A method according to claim 1, further comprising the step of:

implementing the step of increasing during a reverse link transmission from at least each of the current local mobile units to the base station of the at least one particular cell.

11. A method according to claim 10, wherein the steps of determining and estimating each further comprise:

determining a current operating interference level at the base station of the at least one particular cell resulting from at least each of the current local mobile units; and

estimating a necessary operating interference increase for at least each of the current local mobile units.

12. A method according to claim 11, further comprising the steps of:

also identifying current other mobile units located in neighboring cells that are in signal communication with the base station of the at least one particular cell;

determining a current operating interference level for each of the current other mobile units; and

estimating a necessary increase in the current operating interference level for each of the current other mobile units.

13. A method according to claim 1, wherein the step of identifying further comprises:

identifying current voice users of the system and identifying current data users of the system, wherein each of the identified voice and data users is one of the current local mobile units.

14. A method according to claim 13, wherein the step of identifying further comprises:

also identifying current other voice users and current other data users located in neighboring cells that are in signal communication with the base station of the at least one particular cell.

15. A method according to claim 1, further comprising the steps of:

calculating an available operating level margin for at least the base station of the at least one particular cell including accounting for the necessary operating level increase for at least each of the current local mobile units; and

assuring that an aggregate sum of the necessary operating level increases at the transmit time does not exceed the available operating level margin for the base station of the at least one particular cell.

16. A method according to claim 15, further comprising the steps of:

identifying a cell subset including the at least one particular cell and any neighboring cells in soft hand-off with at least one of the current local mobile units;

further identifying any current other mobile units in the neighboring cells that are in signal communication with a base station of at least one of the neighboring cells;

performing the steps of determining and estimating for each of the current other mobile units;

calculating an available operating level margin for each base station of the cell subset including accounting for the necessary increase for each of the current local mobile units and current other mobile units in signal communication with a respective base station; and

assuring that an aggregate sum of the necessary operating level increases for respective ones of the current local and other mobile units at the transmit time does not exceed the available operating level margin for each base station of the cell subset.

17. A method according to claim 1, further comprising the step of:

placing at least each current local mobile unit in an accelerated operating level control mode for a period of time beginning no later than at the transmit time.

18. A method according to claim 1, wherein the step of estimating further comprises:

maximizing a transmission rate for the imminent high speed data transmission based upon an available operating level margin within the at least one particular cell.

19. A method according to claim 18, wherein the step of estimating further comprises:

estimating the necessary operating level increase for at least each of the current local mobile units utilizing the maximized transmission rate and comparing an aggregate sum of the estimated operating level increases to the available operating level margin for the at least one particular cell.