(WO/2001/076089) SYMBOL COMBINER SYNCHRONIZATION AFTER A JUMP TO A NEW TIME ALIGNMENT

(WO/2001/076089) SYMBOL COMBINER SYNCHRONIZATION AFTER A JUMP TO A NEW TIME ALIGNMENT

Latest bibliographic data on file with the International Bureau
Pub. No.:  WO/2001/076089   International Application No.:  PCT/US2001/040426
Publication Date:11.10.2001 International Filing Date:02.04.2001
Chapter 2 Demand Filed: 29.10.2001
IPC: H04B 1/707 (2006.01)
Applicant:QUALCOMM INCORPORATED [US/US]; 5775 Morehouse Drive San Diego, CA 92121-1714 (US).
Inventor:NEUFELD, Arthur; (US).
Agent:WADSWORTH, Philip, R. et al.; Qualcomm Incorporated 5775 Morehouse Drive San Diego, CA 92121-1714 (US).
Priority Data:
09/540,302 31.03.2000 US
Title: SYMBOL COMBINER SYNCHRONIZATION AFTER A JUMP TO A NEW TIME ALIGNMENT
Abstract: A method and apparatus whereby a remote unit (10A, 10B and 10C) in a slotted mode wireless communication system may calculate accurate time throughout its entire active state. In the remote unit (10A, 10B and 10C) a 'wall clock time' is calculated from a modulo 80 counter called a combiner time counter (224). When a remote unit (10A, 10B and 10C) enters its inactive state, counters within the remote unit (10A, 10B and 10C), including the combined time counter, are deactivated. When the remote unit (10A, 10B and 10C) reenters its active state, the value in the combiner time counter (224) may not be correct in relationship to slotted mode time. A controller (106) in the remote unit (10A, 10B and 10C) forces the combiner time counted to the correct phase resulting in the combiner (224) being within 26.66 of the correct value. The controller (106) then determines a combiner offset to compensate for any remaining error in the combiner time counter (224). The control (106) may then use the combiner time counter (224) and the combiner offset to calculate accurate wall clock time. When convenient, such as at a slot boundary, the remote unit (10A, 10B and 10C) may reset the combiner counter (224) to a correct value, and set combiner offset to zero.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Org. (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language:English (EN)
Filing Language:English (EN)

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