Method for transmitting a quick paging channel at different power levels

• US 6,138,034 A
• Filed: 02/26/1999
• Issued: 10/24/2000
• Est. Priority Date: 12/04/1998
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Willey, W. Daniel
• Primary Examiner(s): TO, DORIS HA
• Application Number:
  US09/258,986
• Time in Patent Office: 606 Days
• Field of Search: 455/422, 455/434, 455/436, 455/450, 455/455, 455/515, 455/517, 455/574, 455/522, 455/67.1, 455/69-70, 455/38.1, 455/31.3, 455/561, 375/130, 375/140, 370/335, 370/342, 370/441
• US Class Current: 455/522
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 68/025 Indirect paging
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention provides a method for transmitting a quick paging channel at different power levels at a base station. The quick paging channel includes paging indicators and configuration change indicators. The method includes transmitting the paging indicators at a first power level and transmitting the configuration change indicators at a second power level different than the first power level. Preferably, the second power level is higher than the first power level.

Claims

1. A method for transmitting a quick paging channel at different power levels at a base station, the quick paging channel including paging indicators and configuration change indicators, the method comprising transmitting the paging indicators at a first power level and transmitting the configuration change indicators at a second power level different than the first power level.

2. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein the configuration change indicators are transmitted at a higher power level than the power level of the paging indicators.

3. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein, for one value the base station transmits a spread spectrum signal at a given power level during the bit time period using a particular spreading code, and for the other value the base station does not transmit any power during the bit time period using the particular spreading code.

4. A method for transmitting a quick paging channel at different power levels in accordance with claim 3, wherein, if the mobile station determines that the received power for the QPCH bit time period and spreading code is sufficiently strong, the mobile station is certain that the base station transmitted the bit.

5. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein, if the mobile station determines that the pilot power for the quick paging channel (QPCH) bit time period is sufficiently strong and that there is little received power for the QPCH bit time period and spreading code, the mobile station can be certain that the base station did not transmit the bit.

6. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein, if the mobile station determines that the pilot power for the QPCH bit time period is not sufficiently strong, the mobile station cannot be certain whether or not the base station transmitted the bit.

7. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein, if the change in configuration parameter values includes a change in the power level of the QPCH, the power level of the configuration change indicator bits for the current time period is set to the old QPCH power level.

8. A method for transmitting a quick paging channel at different power levels in accordance with claim 7, wherein, after the current time period, the new power level of the configuration change indicator bits is used.

9. A method for transmitting a quick paging channel at different power levels in accordance with claim 7, wherein, if the change in configuration parameter values includes a change in the power level of the QPCH, the power level of the paging indicator bits for the current time period is set to the old QPCH power level.

10. A method for transmitting a quick paging channel at different power levels in accordance with claim 1, wherein, after the current time period, the new power level of the paging indicator bits is used.

11. A method for setting the power level of paging indicator bits, the method comprising:

updating configuration parameter value information at the base station;

setting quick paging channel indicator bits to an ON position;

setting, if the change in configuration parameter value information includes a change in the power level of the quick paging channel, the power level of the paging indicator bits to a previous quick paging channel power level; and

setting the power level of the paging indicator bits to the new power level of the paging indicator bits.

12. A method for setting the power level of paging indicator bits in accordance with claim 11, wherein the step of setting the power level of the paging indicator bits to the new power level of the paging indicator bits is done after a predetermined time.