GB2456910B - Interpolating grake with two step delay hypothesis testing - Google Patents

Interpolating grake with two step delay hypothesis testing

Info

Publication number
GB2456910B
GB2456910B GB0901303A GB0901303A GB2456910B GB 2456910 B GB2456910 B GB 2456910B GB 0901303 A GB0901303 A GB 0901303A GB 0901303 A GB0901303 A GB 0901303A GB 2456910 B GB2456910 B GB 2456910B
Authority
GB
United Kingdom
Prior art keywords
grake
interpolating
hypothesis testing
step delay
delay hypothesis
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.)
Expired - Fee Related
Application number
GB0901303A
Other versions
GB2456910A (en
GB0901303D0 (en
Inventor
Karsten Brueninghaus
Oliver Klein
Jaroslaw Niewczas
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 US12/052,042 external-priority patent/US7978751B2/en
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB0901303D0 publication Critical patent/GB0901303D0/en
Publication of GB2456910A publication Critical patent/GB2456910A/en
Application granted granted Critical
Publication of GB2456910B publication Critical patent/GB2456910B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04B1/69—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
    • H04B1/7113—Determination of path profile
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709727—GRAKE type RAKE receivers
GB0901303A 2008-01-28 2009-01-27 Interpolating grake with two step delay hypothesis testing Expired - Fee Related GB2456910B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2393908P 2008-01-28 2008-01-28
US12/052,042 US7978751B2 (en) 2008-01-28 2008-03-20 Interpolating GRAKE with two step delay hypothesis testing

Publications (3)

Publication Number Publication Date
GB0901303D0 GB0901303D0 (en) 2009-03-11
GB2456910A GB2456910A (en) 2009-08-05
GB2456910B true GB2456910B (en) 2012-01-04

Family

ID=40469134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0901303A Expired - Fee Related GB2456910B (en) 2008-01-28 2009-01-27 Interpolating grake with two step delay hypothesis testing

Country Status (1)

Country Link
GB (1) GB2456910B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8971386B2 (en) 2011-08-17 2015-03-03 Telefonaktiebolaget L M Ericsson (Publ) Receiver unit and method for suppressing interference in a multipath radio signal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002067453A1 (en) * 2001-02-14 2002-08-29 Telefonaktiebolaget Lm Ericsson (Publ) Tuning the fingers of a rake receiver
WO2004001983A2 (en) * 2002-06-24 2003-12-31 Comsys Communication & Signal Processing Ltd. Multipath channel tap delay estimation in a cdma spread spectrum receiver
WO2006128609A1 (en) * 2005-05-31 2006-12-07 Telefonaktiebolaget L M Ericsson (Publ) Adaptive timing recovery via generalized rake conception

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002067453A1 (en) * 2001-02-14 2002-08-29 Telefonaktiebolaget Lm Ericsson (Publ) Tuning the fingers of a rake receiver
WO2004001983A2 (en) * 2002-06-24 2003-12-31 Comsys Communication & Signal Processing Ltd. Multipath channel tap delay estimation in a cdma spread spectrum receiver
WO2006128609A1 (en) * 2005-05-31 2006-12-07 Telefonaktiebolaget L M Ericsson (Publ) Adaptive timing recovery via generalized rake conception

Also Published As

Publication number Publication date
GB2456910A (en) 2009-08-05
GB0901303D0 (en) 2009-03-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200127