EP 1090465 A1 20010411 - METHOD AND APPARATUS FOR STORING AND ACCESSING DIFFERENT CHIP SEQUENCES
Title (en)
METHOD AND APPARATUS FOR STORING AND ACCESSING DIFFERENT CHIP SEQUENCES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR SPEICHERUNG VON VERSCHIEDENEN SPREIZ-FOLGEN UND ZUM ZUGRIFF AUF DIESELBEN
Title (fr)
PROCEDE ET DISPOSITIF SERVANT A MEMORISER DIFFERENTES SEQUENCES D'ELEMENTS ET A ACCEDER A CES SEQUENCES
Publication
Application
Priority
- SE 9901078 W 19990616
- US 10277098 A 19980623
Abstract (en)
[origin: WO9967895A1] A chip sequence generator (160) stores sequences in a memory (190) having a memory address system. A chip sequence reader uses a memory read address generator (150) to access different phases of the sequences. The reader delivers the different phases to correlators or circuits in a spread spectrum receiver. The memory read address generator generates addresses dependant on a finger select value and a counter value. Each finger select value corresponds to a particular phase of a sequence. The counter value corresponds to a position in time. In sleep mode, the counter value is changed to correspond to the number of clock cycles in a sleep period. The receiver conserves power during sleep and accesses the correct phase of the sequence at wake up. The memory can also store paging sequences. The chip sequence generator generates new sequences as needed and writes them to addresses used to store sequences no longer needed.
IPC 1-7
IPC 8 full level
H04B 1/707 (2006.01); H04Q 7/38 (2006.01); H04W 88/02 (2009.01)
CPC (source: EP KR)
H04B 1/7075 (2013.01 - KR); H04B 1/7115 (2013.01 - EP); H04B 1/7117 (2013.01 - KR); H04B 1/709 (2013.01 - EP); H04B 1/7117 (2013.01 - EP); H04B 2201/70707 (2013.01 - EP)
Citation (search report)
See references of WO 9967895A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9967895 A1 19991229; AR 018927 A1 20011212; AU 4941099 A 20000110; BR 9911434 A 20010320; CA 2335742 A1 19991229; CN 1307756 A 20010808; EE 200000777 A 20020415; EP 1090465 A1 20010411; HK 1039225 A1 20020412; ID 27301 A 20010322; IL 139840 A0 20020210; JP 2002519887 A 20020702; KR 20010071566 A 20010728; NO 20006509 D0 20001220; NO 20006509 L 20001220; RU 2001101930 A 20021220
DOCDB simple family (application)
SE 9901078 W 19990616; AR P990103011 A 19990623; AU 4941099 A 19990616; BR 9911434 A 19990616; CA 2335742 A 19990616; CN 99807850 A 19990616; EE P200000777 A 19990616; EP 99933343 A 19990616; HK 02100737 A 20020130; ID 20010050 A 19990616; IL 13984099 A 19990616; JP 2000556455 A 19990616; KR 20007014605 A 20001222; NO 20006509 A 20001220; RU 2001101930 A 19990616