WO2000035137A8 - Methods and apparatus for decoding variably-coded signals based on prior communication - Google Patents

Methods and apparatus for decoding variably-coded signals based on prior communication

Info

Publication number
WO2000035137A8
WO2000035137A8 PCT/US1999/028671 US9928671W WO0035137A8 WO 2000035137 A8 WO2000035137 A8 WO 2000035137A8 US 9928671 W US9928671 W US 9928671W WO 0035137 A8 WO0035137 A8 WO 0035137A8
Authority
WO
WIPO (PCT)
Prior art keywords
codes
field
code
signal
station
Prior art date
Application number
PCT/US1999/028671
Other languages
French (fr)
Other versions
WO2000035137A3 (en
WO2000035137A2 (en
Inventor
Alex Krister Raith
Ayman Mostafa
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Priority to EP99965110A priority Critical patent/EP1135881B1/en
Priority to DE69927843T priority patent/DE69927843T2/en
Priority to AT99965110T priority patent/ATE307434T1/en
Priority to AU31095/00A priority patent/AU756957B2/en
Publication of WO2000035137A2 publication Critical patent/WO2000035137A2/en
Publication of WO2000035137A3 publication Critical patent/WO2000035137A3/en
Publication of WO2000035137A8 publication Critical patent/WO2000035137A8/en

Links

Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0046—Code rate detection or code type detection
    • 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
    • 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
    • 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
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • 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
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0039—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver other detection of signalling, e.g. detection of TFCI explicit signalling

Abstract

A signal representing variably coded information, i.e., information that is coded according to a code selected from a set of codes, is received at a first station. The received signal is decoding according to respective codes of the set of codes to generate respective likelihood metrics associated with respective codes of the set of codes. A code is selected from the set of codes based on the respective likelihood metrics, wherein the selection of the code from the set of codes is biased based on a prior communication between the first station and a second station that transmitted the signal. The received signal is the decoded according to the selected code to generate an estimate of the information. According to another embodiment, a signal representing a first variably code field and a second field that indicates the code applied to the first field, is received and processed to generate an estimate of the second field. Based on a confidence in the generated estimate of the second field, the receiving station either identifies the code applied to the first field based solely on the generated estimate of the second field, or identifies the code applied to the first field based on the generated estimate of the second field and respective likelihood metrics associated with decoding the received signal according to respective codes of the set of codes. In still another embodiment, an extent to which to partially decode a received variably coded signal to identify the code applied to the signal is determined based on a prior communication between the receiving station and a station that transmitted the signal.
PCT/US1999/028671 1998-12-11 1999-12-03 Methods and apparatus for decoding variably-coded signals based on prior communication WO2000035137A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99965110A EP1135881B1 (en) 1998-12-11 1999-12-03 Methods and apparatus for decoding variably-coded signals based on prior communication
DE69927843T DE69927843T2 (en) 1998-12-11 1999-12-03 METHOD AND DEVICE FOR DECODING SIGNALS WITH VARIABLE CODINGS BASED ON PREVIOUS COMMUNICATION
AT99965110T ATE307434T1 (en) 1998-12-11 1999-12-03 METHOD AND DEVICE FOR DECODING SIGNALS WITH VARIABLE CODINGS DUE TO PREVIOUS COMMUNICATION
AU31095/00A AU756957B2 (en) 1998-12-11 1999-12-03 Methods and apparatus for decoding variably-coded signals based on prior communication

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11187698P 1998-12-11 1998-12-11
US60/111,876 1998-12-11
US09/451,208 US7042963B1 (en) 1998-12-11 1999-11-29 Methods and apparatus for decoding variably-coded signals based on prior communication
US09/451,208 1999-11-29

Publications (3)

Publication Number Publication Date
WO2000035137A2 WO2000035137A2 (en) 2000-06-15
WO2000035137A3 WO2000035137A3 (en) 2000-09-08
WO2000035137A8 true WO2000035137A8 (en) 2001-03-01

Family

ID=26809332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/028671 WO2000035137A2 (en) 1998-12-11 1999-12-03 Methods and apparatus for decoding variably-coded signals based on prior communication

Country Status (8)

Country Link
US (1) US7042963B1 (en)
EP (1) EP1135881B1 (en)
CN (1) CN1227852C (en)
AT (1) ATE307434T1 (en)
AU (1) AU756957B2 (en)
DE (1) DE69927843T2 (en)
ES (1) ES2247854T3 (en)
WO (1) WO2000035137A2 (en)

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US6009553A (en) * 1997-12-15 1999-12-28 The Whitaker Corporation Adaptive error correction for a communications link
WO2001039424A1 (en) * 1999-11-26 2001-05-31 Nokia Mobile Phones Limited Frame error identification
FI109569B (en) 2000-04-04 2002-08-30 Nokia Corp Method and arrangement for allocating time intervals for a connected control channel
US6804218B2 (en) 2000-12-04 2004-10-12 Qualcomm Incorporated Method and apparatus for improved detection of rate errors in variable rate receivers
US20030027579A1 (en) * 2001-08-03 2003-02-06 Uwe Sydon System for and method of providing an air interface with variable data rate by switching the bit time
US7095710B2 (en) * 2001-12-21 2006-08-22 Qualcomm Decoding using walsh space information
US20040141572A1 (en) 2003-01-21 2004-07-22 Johnson Phillip Marc Multi-pass inband bit and channel decoding for a multi-rate receiver
EP1698189B1 (en) * 2003-12-19 2009-05-06 Telefonaktiebolaget LM Ericsson (publ) Relay station and method for enabling reliable digital communications between two nodes in a wireless relay based network
TWI283135B (en) * 2004-04-07 2007-06-21 Benq Corp Communication channel characteristic estimation method
EP1705799A1 (en) * 2005-03-22 2006-09-27 Fondazione Torino Wireless A method and system for information processing
KR100880171B1 (en) * 2005-12-29 2009-01-23 삼성전자주식회사 Apparatus and method for decoding of terminal in wireless communication system
FR2903257A1 (en) * 2006-06-30 2008-01-04 Thomson Licensing Sas COMMUNICATION METHOD ADAPTED FOR TRANSMITTING DATA PACKETS
EP1944896A1 (en) * 2007-01-09 2008-07-16 Matsushita Electric Industrial Co., Ltd. Configuration of control channels in a mobile communication system
WO2008115377A2 (en) * 2007-03-15 2008-09-25 Interdigital Technology Corporation Method and apparatus for performing blind transport format detection
US8761144B2 (en) * 2007-06-28 2014-06-24 Telefonaktiebolaget Lm Ericsson (Publ) HS-PDSCH blind decoding
US8223855B2 (en) * 2007-08-10 2012-07-17 Motorola Mobility, Inc. Method for blindly detecting a precoding matrix index
US8156397B2 (en) * 2007-08-21 2012-04-10 Broadcom Corporation Method and system for feedback of decoded data characteristics to a decoder in stored data access and decoding operations to assist in additional decoding operations
US8687745B2 (en) * 2007-12-13 2014-04-01 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for blind decoding
US8396170B2 (en) * 2009-07-30 2013-03-12 Qualcomm Incorporated Utilization of a known portion of a payload to decode a payload having a known and an unknown portion
US11012272B2 (en) 2015-03-10 2021-05-18 Qualcomm Incorporated Channel or interference estimation for SC-FDM symbol streams
KR102412695B1 (en) 2015-07-28 2022-06-24 삼성전자주식회사 Apparatus and method for controlling receiving data
GB201810547D0 (en) * 2018-06-27 2018-08-15 Nordic Semiconductor Asa OFDM channel estimation
GB201810548D0 (en) 2018-06-27 2018-08-15 Nordic Semiconductor Asa OFDM channel estimation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230003A (en) * 1991-02-08 1993-07-20 Ericsson-Ge Mobile Communications Holding, Inc. Decoding system for distinguishing different types of convolutionally-encoded signals
CA2116736C (en) 1993-03-05 1999-08-10 Edward M. Roney, Iv Decoder selection
US5729557A (en) 1995-10-12 1998-03-17 Pacific Communication Systems, Inc. Cellular communication system with multiple code rates
US5757813A (en) 1995-10-18 1998-05-26 Telefonaktiebolaget Lm Ericsson Method for achieving optimal channel coding in a communication system
US5671255A (en) 1996-03-29 1997-09-23 Motorola, Inc. Method and apparatus for determining coding rate in a wireless communication system
US6009553A (en) 1997-12-15 1999-12-28 The Whitaker Corporation Adaptive error correction for a communications link
US6112325A (en) * 1998-01-23 2000-08-29 Dspc Technologies, Ltd. Method and device for detecting rate

Also Published As

Publication number Publication date
AU3109500A (en) 2000-06-26
DE69927843D1 (en) 2005-11-24
AU756957B2 (en) 2003-01-30
CN1346559A (en) 2002-04-24
CN1227852C (en) 2005-11-16
ES2247854T3 (en) 2006-03-01
WO2000035137A3 (en) 2000-09-08
US7042963B1 (en) 2006-05-09
WO2000035137A2 (en) 2000-06-15
EP1135881B1 (en) 2005-10-19
EP1135881A2 (en) 2001-09-26
DE69927843T2 (en) 2006-07-27
ATE307434T1 (en) 2005-11-15

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