EP 0983701 A2 20000308 - METHOD AND SYSTEM FOR AVOIDING COMMUNICATION FAILURE IN CDMA SYSTEMS
Title (en)
METHOD AND SYSTEM FOR AVOIDING COMMUNICATION FAILURE IN CDMA SYSTEMS
Title (de)
VERFAHREN UND SYSTEM ZUR VERMEIDUNG VON ÜBERTRAGUNGUNGSAUSFÄLLEN IN CDMA-SYSTEMEN
Title (fr)
PROCEDE ET SYSTEME POUR EMPECHER LES DEFAUTS DE COMMUNICATION DANS LES SYSTEMES AMDC
Publication
Application
Priority
- US 9807433 W 19980414
- US 4354697 P 19970414
- US 4114898 A 19980312
Abstract (en)
[origin: WO9847238A2] A method and system for avoiding communication failure in CDMA systems. The method and system achieve their objects as follows. At least one CDMA carrier acquisition failure is detected. Channel acquisition procedures are adjusted such that the at least one CDMA carrier for which acquisition failed is no longer considered a viable channel. Channel acquisition failure detection can include storing the identity of the at least one CDMA carrier for which acquisition failed. Adjustment of channel acquisition procedures can include removing the at least one CDMA carrier for which acquisition failed from the list of carriers considered active. Adjustment of channel acquisition procedures can also include allowing CDMA carrier selection as if the detection of at least one CDMA carrier acquisition failure had not occurred, and, if the CDMA carrier selected is the at least one CDMA carrier for which acquisition failed, substituting another CDMA carrier in place of the CDMA carrier selected. Furthermore, adjustment of channel acquisition procedures can also include substituting a new seed into the pseudo-random number generator ordinarily utilized to select the CDMA carrier, and thereafter utilizing the new seed with the pseudo-random number generator ordinarily utilized to select the CDMA carrier.
IPC 1-7
IPC 8 full level
H04B 1/707 (2011.01); H04B 17/00 (2006.01); H04W 48/16 (2009.01); H04W 28/04 (2009.01); H04W 48/12 (2009.01)
CPC (source: EP)
H04B 1/7075 (2013.01); H04W 48/16 (2013.01); H04B 1/7077 (2013.01); H04B 2201/70702 (2013.01); H04W 48/12 (2013.01)
Citation (search report)
See references of WO 9847238A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9847238 A2 19981022; WO 9847238 A3 19990121; AU 6969598 A 19981111; CA 2287243 A1 19981022; DE 19882318 T1 20000413; EP 0983701 A2 20000308
DOCDB simple family (application)
US 9807433 W 19980414; AU 6969598 A 19980414; CA 2287243 A 19980414; DE 19882318 T 19980414; EP 98915535 A 19980414