ATE500662T1 - Skalierung und begrenzung von digitalen empfangssignalen in abhängigkeit des modulationsformats oder des träger/interferenz verhältnisses - Google Patents

Skalierung und begrenzung von digitalen empfangssignalen in abhängigkeit des modulationsformats oder des träger/interferenz verhältnisses

Info

Publication number
ATE500662T1
ATE500662T1 AT08006410T AT08006410T ATE500662T1 AT E500662 T1 ATE500662 T1 AT E500662T1 AT 08006410 T AT08006410 T AT 08006410T AT 08006410 T AT08006410 T AT 08006410T AT E500662 T1 ATE500662 T1 AT E500662T1
Authority
AT
Austria
Prior art keywords
carrier
scaling
modulation format
limiting
received signals
Prior art date
Application number
AT08006410T
Other languages
English (en)
Inventor
James Young Hurt
Preethi Chandrasekhar
Roland Reinhard Rick
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE500662T1 publication Critical patent/ATE500662T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/391—Modelling the propagation channel
    • H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT08006410T 2007-12-21 2008-03-31 Skalierung und begrenzung von digitalen empfangssignalen in abhängigkeit des modulationsformats oder des träger/interferenz verhältnisses ATE500662T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/962,655 US8073076B2 (en) 2007-12-21 2007-12-21 Method and apparatus for processing a communication signal

Publications (1)

Publication Number Publication Date
ATE500662T1 true ATE500662T1 (de) 2011-03-15

Family

ID=40788580

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08006410T ATE500662T1 (de) 2007-12-21 2008-03-31 Skalierung und begrenzung von digitalen empfangssignalen in abhängigkeit des modulationsformats oder des träger/interferenz verhältnisses

Country Status (8)

Country Link
US (1) US8073076B2 (de)
EP (1) EP2091170B1 (de)
JP (1) JP5378405B2 (de)
KR (1) KR101134722B1 (de)
CN (1) CN101904128B (de)
AT (1) ATE500662T1 (de)
DE (1) DE602008005254D1 (de)
TW (1) TW200943758A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2487225B (en) * 2011-01-14 2017-12-06 Nvidia Tech Uk Limited Receiving an input signal over a channel of a wireless network

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556900A (en) * 1983-05-25 1985-12-03 Rca Corporation Scaling device as for quantized B-Y signal
US5799011A (en) 1996-03-29 1998-08-25 Motorola, Inc. CDMA power control channel estimation using dynamic coefficient scaling
US6137839A (en) 1996-05-09 2000-10-24 Texas Instruments Incorporated Variable scaling of 16-bit fixed point fast fourier forward and inverse transforms to improve precision for implementation of discrete multitone for asymmetric digital subscriber loops
JP2001102963A (ja) * 1999-10-01 2001-04-13 Matsushita Electric Ind Co Ltd 同期装置及び同期方法
KR100434459B1 (ko) * 2000-06-27 2004-06-05 삼성전자주식회사 이동통신 시스템에서 패킷의 전송 제어방법 및 장치
US7221653B2 (en) 2001-07-30 2007-05-22 Telefonaktiebolaget Lm Ericsson (Publ) Fast flow control methods for communication networks
US7209517B2 (en) 2002-03-04 2007-04-24 Qualcomm Incorporated Method and apparatus for estimating a maximum rate of data and for estimating power required for transmission of data at a rate of data in a communication system
JP2003280698A (ja) * 2002-03-22 2003-10-02 Sanyo Electric Co Ltd 音声圧縮方法および音声圧縮装置
US7260139B2 (en) * 2002-10-22 2007-08-21 Intel Corporation Method to reduce the number of bits per soft bit
US7340013B2 (en) 2002-10-24 2008-03-04 Agere Systems Inc. Soft sample scaling in a turbo decoder
US7555067B2 (en) 2003-03-13 2009-06-30 Texas Instruments Incorporated Method and apparatus for decoder input scaling based on interference estimation in CDMA
JP4545534B2 (ja) * 2004-09-16 2010-09-15 三菱電機株式会社 無線受信装置
US7486716B2 (en) * 2005-06-22 2009-02-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for using chip sample correlations in one or more received signal processing operations
FI20055368A0 (fi) * 2005-06-30 2005-06-30 Nokia Corp Vastaanotin ja menetelmä vastaanotetun datan käsittelemiseksi
US7684479B2 (en) 2005-08-12 2010-03-23 Broadcom Corporation Methods and systems for soft-bit demapping
GB2434948B (en) 2006-02-03 2008-04-09 Motorola Inc Wireless communication unit and method for receiving a wireless signal

Also Published As

Publication number Publication date
JP5378405B2 (ja) 2013-12-25
TW200943758A (en) 2009-10-16
US8073076B2 (en) 2011-12-06
JP2011509569A (ja) 2011-03-24
DE602008005254D1 (de) 2011-04-14
CN101904128B (zh) 2013-10-09
KR20100095467A (ko) 2010-08-30
CN101904128A (zh) 2010-12-01
US20090161737A1 (en) 2009-06-25
KR101134722B1 (ko) 2012-04-13
EP2091170A1 (de) 2009-08-19
EP2091170B1 (de) 2011-03-02

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