Claims
- 1. A method of processing QPCH paging indicator bits to conserve power and extend standby in a CDMA communication system, comprising:
identifying a sleep condition; and triggering a sleep start period in PN rolls having less than 1/4 non-multiples.
- 2. A method of processing QPCH paging indicator bits to conserve power and extend standby in a CDMA communication system, comprising:
identifying a sleep condition; and triggering sleep start at an arbitrary instant, thus eliminating the use of finger rolls to force a roll event in a symbol combiner.
- 3. In a wireless communication system, a method for processing data transmitted at designated times on a particular code channel, comprising:
identifying a sleep condition; and performing a sleep of a duration that is a non-integer multiple of a length of a PN sequence used to spread the data prior to transmission, wherein a fractional part of the sleep duration is less than a quarter PN sequence length.
- 4. The method of claim 3, wherein the data corresponds to paging indicator bits transmitted on a quick paging channel (QPCH).
- 5. The method of claim 4, wherein the sleep is performed between a pair of paging indicator bits in a particular QPCH slot.
- 6. The method of claim 3, wherein the data corresponds to a page message transmitted on a paging channel (PCH).
- 7. The method of claim 3, wherein the data corresponds to a broadcast message transmitted on a broadcast channel.
- 8. The method of claim 3, wherein the sleep duration is selected as an integer multiple of a time increment that is less than a quarter of the PN sequence length.
- 9. The method of claim 8, wherein the time increment is selected based on masks used for masking the PN sequence.
- 10. The method of claim 8, wherein the time increment is selected based on the size of buffers used to store symbols.
- 11. The method of claim 8, wherein the time increment is selected as an integer multiple of 64 PN chips.
- 12. The method of claim 11, wherein the time increment is selected as 512 PN chips.
- 13. The method of claim 3, wherein the performing the sleep includes
removing clocks to demodulator and decoder hardware for the duration of the sleep.
- 14. The method of claim 3, wherein the performing the sleep includes disabling selected ones of RF circuitry for the duration of the sleep.
- 15. The method of claim 3, further comprising:
generating an interrupt after waking up from the sleep.
- 16. The method of claim 15, wherein the interrupt is generated by hardware when clocks are re-enabled at wakeup.
- 17. The method of claim 15, wherein the interrupt is generated in response to completion of a signal search after wakeup.
- 18. The method of claim 17, wherein the signal search is programmed prior to entering the sleep.
- 19. The method of claim 3, wherein the sleep condition is identified if a time period between a current time and a next processing time exceeds a particular time threshold.
- 20. The method of claim 3, wherein the communication system is a CDMA system.
- 21. The method of claim 20, wherein the CDMA system implements IS-95 or cdma2000 standard.
- 22. A memory communicatively coupled to a digital signal processing device (DSPD) capable of interpreting digital information to:
identify a sleep condition; and initiate a sleep of a duration that is a non-integer multiple of a length of a PN sequence used to spread the data prior to transmission, wherein a fractional part of the sleep duration is less than a quarter PN sequence length.
- 23. In a CDMA communication system, a method for processing paging indicator (PI) bits transmitted on a quick paging channel (QPCH), comprising:
waking up from a first sleep to process a first PI bit; performing a second sleep until a second PI bit; waking up from the second sleep to process the second PI bit; and performing a third sleep until a next processing time.
- 24. The method of claim 23, wherein the waking up to process the second PI bit is not performed if the first PI bit is detected as an Off bit that indicates no page message for an upcoming slot.
- 25. The method of claim 23, further comprising:
waking up from the third sleep to process a page message.
- 26. The method of claim 25, wherein the waking up to process the page message is not performed if the second PI bit is detected as an Off bit that indicates no page message for an upcoming slot.
- 27. The method of claim 23, wherein the first and second PI bits are positioned within the same QPCH slot.
- 28. A terminal in a wireless communication system comprising:
a first controller operative to identify a sleep condition; and a sleep controller operative to initiate a sleep of a duration that is a non-integer multiple of a length of a PN sequence used to spread the data prior to transmission, wherein a fractional part of the sleep duration is less than a quarter of PN sequence length.
- 29. The receiver unit of claim 28, further comprising:
a clock generator operative to disable clocks for selected circuitry within the terminal for the duration of the sleep.
- 30. The receiver unit of claim 28, further comprising:
a searcher element operative to provide an interrupt after wakeup from the sleep.
- 31. The receiver unit of claim 28, further comprising:
at least one finger processor operative to provide a PN roll event from which system time for the terminal may be reset to.
RELATED APPLICATIONS
[0001] This application claims the benefit of provisional U.S. application Ser. No. 60/235,416], entitled “METHOD OF PROCESSING QUICK PAGING CHANNEL (QPCH) PAGING INDICATOR (PI) BITS,” filed Sep. 26, 2000, which is incorporated herein by reference in its entirety for all purposes.
Provisional Applications (1)
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Number |
Date |
Country |
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60235416 |
Sep 2000 |
US |