WO1998047238A3 - Method and system for avoiding communication failure in cdma systems - Google Patents

Method and system for avoiding communication failure in cdma systems Download PDF

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Publication number
WO1998047238A3
WO1998047238A3 PCT/US1998/007433 US9807433W WO9847238A3 WO 1998047238 A3 WO1998047238 A3 WO 1998047238A3 US 9807433 W US9807433 W US 9807433W WO 9847238 A3 WO9847238 A3 WO 9847238A3
Authority
WO
WIPO (PCT)
Prior art keywords
cdma carrier
acquisition
cdma
channel
failed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1998/007433
Other languages
French (fr)
Other versions
WO1998047238A2 (en
Inventor
Samir Alami
Kim Chang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/041,148 external-priority patent/US6233247B1/en
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA002287243A priority Critical patent/CA2287243A1/en
Priority to EP98915535A priority patent/EP0983701A2/en
Priority to AU69695/98A priority patent/AU6969598A/en
Priority to DE19882318T priority patent/DE19882318T1/en
Publication of WO1998047238A2 publication Critical patent/WO1998047238A2/en
Publication of WO1998047238A3 publication Critical patent/WO1998047238A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

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.
PCT/US1998/007433 1997-04-14 1998-04-14 Method and system for avoiding communication failure in cdma systems Ceased WO1998047238A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002287243A CA2287243A1 (en) 1997-04-14 1998-04-14 Method and system for avoiding communication failure in cdma systems
EP98915535A EP0983701A2 (en) 1997-04-14 1998-04-14 Method and system for avoiding communication failure in cdma systems
AU69695/98A AU6969598A (en) 1997-04-14 1998-04-14 Method and system for avoiding communication failure in cdma systems
DE19882318T DE19882318T1 (en) 1997-04-14 1998-04-14 Method and system for avoiding communication interference in CDMA systems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4354697P 1997-04-14 1997-04-14
US60/043,546 1997-04-14
US09/041,148 US6233247B1 (en) 1998-03-12 1998-03-12 Method and system for avoiding communication failure in CDMA systems
US09/041,148 1998-03-12

Publications (2)

Publication Number Publication Date
WO1998047238A2 WO1998047238A2 (en) 1998-10-22
WO1998047238A3 true WO1998047238A3 (en) 1999-01-21

Family

ID=26717846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/007433 Ceased WO1998047238A2 (en) 1997-04-14 1998-04-14 Method and system for avoiding communication failure in cdma systems

Country Status (5)

Country Link
EP (1) EP0983701A2 (en)
AU (1) AU6969598A (en)
CA (1) CA2287243A1 (en)
DE (1) DE19882318T1 (en)
WO (1) WO1998047238A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9264533B2 (en) 2000-01-07 2016-02-16 Tq Delta, Llc Systems and methods for establishing a diagnostic transmission mode and communicating over the same
US9286251B2 (en) 2004-10-12 2016-03-15 Tq Delta, Llc Resource sharing in a telecommunications environment
US9485055B2 (en) 2006-04-12 2016-11-01 Tq Delta, Llc Packet retransmission and memory sharing

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160906A1 (en) 2002-06-21 2004-08-19 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on capability
US6625200B1 (en) * 1999-01-25 2003-09-23 Ericsson Inc. Multi-stage CDMA synchronization with parallel execution
US6925067B2 (en) * 1999-04-23 2005-08-02 Qualcomm, Incorporated Configuration of overhead channels in a mixed bandwidth system
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
WO2003032555A2 (en) 2001-10-05 2003-04-17 Aware, Inc. Systems and methods for multi-pair atm over dsl
US7437165B2 (en) * 2003-06-30 2008-10-14 Lucent Technologies Inc. Method of applying hashing algorithms in a wireless communication system
US20080232444A1 (en) 2004-03-03 2008-09-25 Aware, Inc. Impulse Noise Management
CA3023907C (en) 2004-09-25 2019-06-04 Tq Delta, Llc Crc counter normalization
US7796705B2 (en) 2004-10-15 2010-09-14 Aware, Inc. DMT symbol repetition in the presence of impulse noise

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691027A1 (en) * 1992-05-08 1993-11-12 Motorola Inc Radio receiver tuning selection circuit.
EP0714217A2 (en) * 1994-11-22 1996-05-29 Ntt Mobile Communications Network Inc. Method for searching a control channel in a mobile station
US5577025A (en) * 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels
US5577022A (en) * 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
US5606548A (en) * 1996-04-16 1997-02-25 Nokia Mobile Phones Limited Mobile terminal having improved digital control channel (DCCH) search procedure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2691027A1 (en) * 1992-05-08 1993-11-12 Motorola Inc Radio receiver tuning selection circuit.
EP0714217A2 (en) * 1994-11-22 1996-05-29 Ntt Mobile Communications Network Inc. Method for searching a control channel in a mobile station
US5577022A (en) * 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
US5577025A (en) * 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels
US5606548A (en) * 1996-04-16 1997-02-25 Nokia Mobile Phones Limited Mobile terminal having improved digital control channel (DCCH) search procedure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9264533B2 (en) 2000-01-07 2016-02-16 Tq Delta, Llc Systems and methods for establishing a diagnostic transmission mode and communicating over the same
US9319512B2 (en) 2000-01-07 2016-04-19 Tq Delta, Llc Systems and methods for establishing a diagnostic transmission mode and communicating over the same
US9479637B2 (en) 2000-01-07 2016-10-25 Tq Delta, Llc Systems and methods for establishing a diagnostic transmission mode and communicating over the same
US9286251B2 (en) 2004-10-12 2016-03-15 Tq Delta, Llc Resource sharing in a telecommunications environment
US9547608B2 (en) 2004-10-12 2017-01-17 Tq Delta, Llc Resource sharing in a telecommunications environment
US9485055B2 (en) 2006-04-12 2016-11-01 Tq Delta, Llc Packet retransmission and memory sharing

Also Published As

Publication number Publication date
WO1998047238A2 (en) 1998-10-22
AU6969598A (en) 1998-11-11
CA2287243A1 (en) 1998-10-22
EP0983701A2 (en) 2000-03-08
DE19882318T1 (en) 2000-04-13

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