MX9706516A - Metodo y aparato para la adquisicion de canal piloto. - Google Patents

Metodo y aparato para la adquisicion de canal piloto.

Info

Publication number
MX9706516A
MX9706516A MX9706516A MX9706516A MX9706516A MX 9706516 A MX9706516 A MX 9706516A MX 9706516 A MX9706516 A MX 9706516A MX 9706516 A MX9706516 A MX 9706516A MX 9706516 A MX9706516 A MX 9706516A
Authority
MX
Mexico
Prior art keywords
pilot
term average
strength
active
neighbor
Prior art date
Application number
MX9706516A
Other languages
English (en)
Other versions
MXPA97006516A (es
Inventor
Brian D Storm
David J Krause
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MXPA97006516A publication Critical patent/MXPA97006516A/es
Publication of MX9706516A publication Critical patent/MX9706516A/es

Links

Classifications

    • 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
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • 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
    • H04B1/70756—Jumping within the code, i.e. masking or slewing
    • 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
    • H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
    • 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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/36—Reselection control by user or terminal equipment
    • H04W36/362—Conditional handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

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

Abstract

Un dispositivo de comunicacion inalámbrica (100) adquiere un canal piloto antes de una ranura asignada cuando el dispositivo de comunicacion inalámbrica está funcionando con el modo ranurado de un sistema CDMA. El dispositivo de comunicacion inalámbrica comprende un receptor buscador (107) que determina la intensidad piloto promedio de corto plazo de los canales activo y piloto vecinos. Los receptores de dedos (107) determinan la intensidad piloto promedio de largo plazo de los canales activo y piloto vecinos. Un circuito logico y de control (113) asigna los receptores de dedos a los canales piloto de conformidad con sus intensidades piloto promedio de corto plazo, determina si la intensidad piloto promedio de largo plazo de un canal vecino es mayor que la intensidad piloto del canal piloto activo y, determina el transferir al canal piloto vecino que tiene la intensidad piloto promedio de largo plazo más grande. Además, un tramo o longitud de correlacion de deteccion temprana puede ajustarse en forma dinámica de conformidad con la intensidad piloto del canal piloto activo para acortar el proceso de adquisicion de canal piloto.
MX9706516A 1996-08-30 1997-08-27 Metodo y aparato para la adquisicion de canal piloto. MX9706516A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08706150 1996-08-30
US08/706,150 US5889768A (en) 1996-08-30 1996-08-30 Method of and apparatus for pilot channel acquisition

Publications (2)

Publication Number Publication Date
MXPA97006516A MXPA97006516A (es) 1998-02-01
MX9706516A true MX9706516A (es) 1998-02-28

Family

ID=24836411

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9706516A MX9706516A (es) 1996-08-30 1997-08-27 Metodo y aparato para la adquisicion de canal piloto.

Country Status (8)

Country Link
US (1) US5889768A (es)
JP (1) JP4036927B2 (es)
KR (1) KR100269754B1 (es)
CN (1) CN1183011A (es)
BR (1) BR9704560A (es)
CA (1) CA2212757A1 (es)
GB (1) GB2316836B (es)
MX (1) MX9706516A (es)

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Also Published As

Publication number Publication date
GB2316836A (en) 1998-03-04
KR19980019157A (ko) 1998-06-05
CA2212757A1 (en) 1998-02-28
BR9704560A (pt) 1998-11-03
US5889768A (en) 1999-03-30
CN1183011A (zh) 1998-05-27
GB9717381D0 (en) 1997-10-22
JPH1098448A (ja) 1998-04-14
KR100269754B1 (ko) 2000-10-16
GB2316836B (en) 1998-10-28
JP4036927B2 (ja) 2008-01-23

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