WO2005034530A3 - Apparatus and method for cell selection in high rate packet data systems - Google Patents

Apparatus and method for cell selection in high rate packet data systems Download PDF

Info

Publication number
WO2005034530A3
WO2005034530A3 PCT/IB2004/003168 IB2004003168W WO2005034530A3 WO 2005034530 A3 WO2005034530 A3 WO 2005034530A3 IB 2004003168 W IB2004003168 W IB 2004003168W WO 2005034530 A3 WO2005034530 A3 WO 2005034530A3
Authority
WO
WIPO (PCT)
Prior art keywords
base station
base stations
active set
searcher
remaining
Prior art date
Application number
PCT/IB2004/003168
Other languages
French (fr)
Other versions
WO2005034530A2 (en
Inventor
T G Vishwanath
Jean-Marie Tran
Original Assignee
Nokia Corp
Nokia Inc
T G Vishwanath
Jean-Marie Tran
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
Application filed by Nokia Corp, Nokia Inc, T G Vishwanath, Jean-Marie Tran filed Critical Nokia Corp
Priority to EP04769510A priority Critical patent/EP1687987A2/en
Publication of WO2005034530A2 publication Critical patent/WO2005034530A2/en
Publication of WO2005034530A3 publication Critical patent/WO2005034530A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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

Abstract

A method is disclosed to operate a spread spectrum receiver with an active set of base stations. The method includes monitoring a current serving base station of the active set with a Set Searcher and simultaneously monitoring individual ones of remaining base stations of the active set with a C/I (carrier-to-interference ratio) Searcher. One of the remaining base stations is designated as a Candidate base station for potentially replacing the current serving base station and is monitored continuously by a first set of fingers of the C/I Searcher. The other remaining ones of the base stations of the active set are monitored in a time multiplexed manner by a second set of fingers of the C/I Searcher. The method further includes detecting that one of the remaining ones of the base stations of the active set is received with a stronger signal than the Candidate base station, and designating the detected one of the base stations as a new Candidate base station, and beginning the continuous monitoring of the new Candidate base station while monitoring the other remaining ones of the base stations of the active set, including the previous Candidate base station, in the time multiplexed manner. A spread spectrum receiver that operates in accordance with the method is also disclosed.
PCT/IB2004/003168 2003-09-30 2004-09-29 Apparatus and method for cell selection in high rate packet data systems WO2005034530A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04769510A EP1687987A2 (en) 2003-09-30 2004-09-29 Apparatus and method for cell selection in high rate packet data systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/676,343 2003-09-30
US10/676,343 US7233806B2 (en) 2003-09-30 2003-09-30 Apparatus and method employing time-multiplexed searcher finger monitoring for active set and other base stations

Publications (2)

Publication Number Publication Date
WO2005034530A2 WO2005034530A2 (en) 2005-04-14
WO2005034530A3 true WO2005034530A3 (en) 2006-10-05

Family

ID=34377364

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/003168 WO2005034530A2 (en) 2003-09-30 2004-09-29 Apparatus and method for cell selection in high rate packet data systems

Country Status (3)

Country Link
US (1) US7233806B2 (en)
EP (1) EP1687987A2 (en)
WO (1) WO2005034530A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US7751367B2 (en) * 2003-12-11 2010-07-06 Qualcomm, Inc. Conveying sector load information to mobile stations
US7680082B2 (en) 2005-11-29 2010-03-16 Telefonaktiebolaget L M Ericsson (Publ) Cell selection in high-speed downlink packet access communication systems
CN101267591B (en) * 2007-03-16 2011-07-06 电信科学技术研究院 Method and device for identifying single-frequency network domain
US9426685B2 (en) * 2010-07-16 2016-08-23 Broadcom Corporation Method and system for mitigation of unlisted cell impacts in idle mode of cellular systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5920549A (en) * 1996-12-19 1999-07-06 Motorola, Inc. Method of handing off and a wireless communication device
US6128330A (en) * 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
US6160799A (en) * 1996-09-06 2000-12-12 Motorola, Inc. Method of and apparatus for pilot set maintenance
US6408039B1 (en) * 1998-03-11 2002-06-18 Oki Electric Industry Co., Ltd. Radio communication apparatus employing a rake receiver
US6539006B1 (en) * 1999-08-05 2003-03-25 Ericsson Inc. Mobile station capable of determining base station suitability

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
JP3031352B1 (en) * 1998-09-29 2000-04-10 日本電気株式会社 Receiver circuit and mobile terminal having the same
JP3683128B2 (en) * 1999-07-06 2005-08-17 日本電気株式会社 Wireless communication device and power consumption control method for wireless communication device
US6570909B1 (en) * 1999-07-09 2003-05-27 Nokia Mobile Phones Interference suppression in a CDMA receiver
US6985727B2 (en) * 2002-09-12 2006-01-10 Qualcomm Incorporated Method and apparatus for optimizing search rate and finger assignment rate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6160799A (en) * 1996-09-06 2000-12-12 Motorola, Inc. Method of and apparatus for pilot set maintenance
US5920549A (en) * 1996-12-19 1999-07-06 Motorola, Inc. Method of handing off and a wireless communication device
US6408039B1 (en) * 1998-03-11 2002-06-18 Oki Electric Industry Co., Ltd. Radio communication apparatus employing a rake receiver
US6128330A (en) * 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
US6539006B1 (en) * 1999-08-05 2003-03-25 Ericsson Inc. Mobile station capable of determining base station suitability

Also Published As

Publication number Publication date
EP1687987A2 (en) 2006-08-09
US7233806B2 (en) 2007-06-19
WO2005034530A2 (en) 2005-04-14
US20050070267A1 (en) 2005-03-31

Similar Documents

Publication Publication Date Title
US7096016B2 (en) High-speed all-band-cell search cellular phone
JP4434202B2 (en) Cell search method for wireless communication system
CN2686254Y (en) User equipment (UE) for conducting communciation applied radio time division multiplex/code division multiple access CTDM/CDMA format
KR100932482B1 (en) Frame transmission method for cell or sector switching
US9100876B2 (en) Synchronization system and synchronizing method for plurality of base stations and mobile station in a reverse link wireless transmission
CN100423464C (en) Method and apparatus for improved cell detection
CA2451242A1 (en) An improved apparatus and method for performing initial cell search in wireless communication systems
CA2423913A1 (en) Mobile-assisted network based techniques for improving accuracy of wireless location system
CN101291170A (en) Method for allocating secondary synchronisation codes to a base station of a mobile telecommunication system
AU4146799A (en) Method of monitoring operation of cellular radio system
EP2306771A1 (en) Method for measuring adjacent areas
AU2592001A (en) Method and apparatus for performing search acquisition in a multi-carrier communication system
CN101730122B (en) User detection device suitable for CDMA2000 network and method
JP2011509556A5 (en)
GB0317605D0 (en) Apparatus and method for detecting a power ratio between traffic channel and a pilot channel in a mobile communication system
US7990901B2 (en) Cell search scheduling in a wireless cellular communication network
WO2005034530A3 (en) Apparatus and method for cell selection in high rate packet data systems
CN103024795B (en) The detection method of synchronization timing exception in a kind of TD-SCDMA
AU2002364408A1 (en) Synchronization method in a cellular telecommunication network, hand-over method, corresponding terminal and base station
WO2007036869A3 (en) Frequency scanning method, memory and terminal to implement the method
WO2004013976A3 (en) Method and mobile station for reporting multi-path signals based on a report window
AU2002210534A1 (en) Mobile station and method of locating the mobile station
CN100589333C (en) The method and apparatus of the route searching in the TDD-CDMA system
CN103841609B (en) Downlink synchronization tracking method and device when TD-SCDMA switches
CN104641712A (en) Timing adjustment method, device and system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG 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 NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004769510

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004769510

Country of ref document: EP