KR100870557B1 - 무선통신망에서의 공간-시간 부호화 전송 장치 및 방법 - Google Patents
무선통신망에서의 공간-시간 부호화 전송 장치 및 방법 Download PDFInfo
- Publication number
- KR100870557B1 KR100870557B1 KR1020037015423A KR20037015423A KR100870557B1 KR 100870557 B1 KR100870557 B1 KR 100870557B1 KR 1020037015423 A KR1020037015423 A KR 1020037015423A KR 20037015423 A KR20037015423 A KR 20037015423A KR 100870557 B1 KR100870557 B1 KR 100870557B1
- Authority
- KR
- South Korea
- Prior art keywords
- symbols
- blocks
- space
- time
- wireless communication
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004891 communication Methods 0.000 title claims abstract description 35
- 239000011159 matrix material Substances 0.000 claims abstract description 84
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 claims description 2
- 230000001268 conjugating effect Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000007476 Maximum Likelihood Methods 0.000 abstract description 16
- 238000005562 fading Methods 0.000 abstract description 14
- 230000004044 response Effects 0.000 abstract description 7
- 239000013256 coordination polymer Substances 0.000 description 29
- 238000013461 design Methods 0.000 description 22
- 239000013598 vector Substances 0.000 description 22
- 125000004122 cyclic group Chemical group 0.000 description 17
- 238000012545 processing Methods 0.000 description 17
- 230000000737 periodic effect Effects 0.000 description 15
- 230000000875 corresponding effect Effects 0.000 description 14
- 238000009826 distribution Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 240000008064 Dendrobium affine Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims (24)
- 정보-수용 심벌들의 스트림을 파싱(parsing)하여 K 개의 심벌들의 블록들을 형성하는 단계와;상기 K 개의 심벌들의 블록들을 프리코딩하여 J 개의 심벌들을 갖는 블록들을 형성하는 단계와;연속되는 Ns개의 상기 J 개의 심벌들의 블록들을 획득하는 단계와;순열행렬을 상기 Ns개의 블록들에 적용하는 단계와;각 행이 ND*J개의 심벌들을 포함하는 Nt개의 행들을 갖는 공간-시간 블록 부호화 행렬을 생성하는 단계와;상기 Nt개의 행들의 상기 심벌들로부터 Nt개의 전송 신호들을 생성하는 단계와;ND개의 블록 송신 시간 간격들 이내에, 무선 통신 매체를 통하여 Nt개의 송신 안테나들을 통하여 상기 Nt개의 전송 신호들을 전달하는 단계를 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 1 항에 있어서,J 〉K 인 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 1 항에 있어서,J = K 인 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 4 항에 있어서,상기 공간-시간 블록 부호화 행렬의 제 2 열의 각 행은 제 1 열의 다른 행으로부터의 대응하는 블록의 공액 및 순열 처리된 형태(conjugated and permuted version)의 블록을 저장하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 1 항에 있어서,상기 K 개의 심벌들의 블록들을 프리코딩하는 단계는 일련의 알려져 있는 심벌들을 K 개의 심벌들의 각 블록에 추가하는 단계를 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 7 항에 있어서,상기 일련의 알려져 있는 심벌들은 프리앰블(preamble) 및 포스트앰블(post amble)을 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 1 항에 있어서,수신된 심벌들의 스트림을 포함하는 신호를 상기 무선 통신 매체로부터 수신하는 단계와;상기 수신된 신호의 상기 수신된 심벌들을 파싱하여 J 개의 심벌들의 블록들을 형성하는 단계와;상기 순열 행렬을 상기 수신된 심벌들의 블록들에 적용하여 순열 처리된 블록들을 형성하는 단계와;상기 순열 처리된 블록들로부터 송신 데이터(transmitted data)를 개별적으로 복조하는 단계를 더 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 9 항에 있어서,상기 수신된 심벌들의 블록들에 공액 처리(conjugating)를 수행하고 고속 푸리에 변환(Fast Fourier Transform (FFT))을 적용하는 단계를 추가로 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- J 개의 정보-수용 심벌들의 Ns 개의 블록들에 순열 행렬을 적용하여 순열 처리된 심벌 블록들을 형성하고, 각 행이 ND*J개의 심벌들을 포함하는 Nt개의 행들을 갖는 상기 순열 처리된 심벌 블록들의 공간-시간 블록 부호화 행렬을 생성하는 부호기와;상기 공간-시간 블록 부호화 행렬의 상기 Nt개의 행들의 순열 처리된 심벌 블록들로부터 복수의 전송신호들을 생성하는 복수의 펄스 정형부와;ND개의 블록 송신 시간 간격들 이내에, 무선 통신 매체를 통해 상기 전송신호를 전달하기 위한 복수의 안테나를 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 11 항에 있어서,상기 부호기는 버퍼 내의 연속하는 Ns 개의 블록들을 획득하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 11 항에 있어서,K 개 심벌들의 블록들을 프리코딩하여 상기 J 개의 정보-수용 심볼들의 블록들을 형성하는 프리코더를 더 포함하며, 상기 정보-수용 심벌들의 스트림을 파싱하여 K 개의 심벌들의 블록들을 형성하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 13 항에 있어서,상기 프리코더는 일련의 알려져 있는 심벌들을 K 심벌들의 각 블록에 추가하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 14 항에 있어서,상기 일련의 알려져 있는 심벌들은 프리앰블 및 포스트앰블을 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 13 항에 있어서,J 〉K 인 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 13 항에 있어서,J = K 인 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 11 항에 있어서,상기 무선통신망에서의 공간-시간 부호화 전송 장치는 무선 통신 시스템 내의 기지국을 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 제 11 항에 있어서,상기 무선통신망에서의 공간-시간 부호화 전송 장치는 휴대전화(cellular phone), 휴대정보단말기(Personal Digital Assistant), 랩탑(laptop) 컴퓨터, 데스크탑(desktop) 컴퓨터 및 쌍방향 통신장치 중 하나를 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 장치.
- 정보-수용 심벌들의 외향 데이터 스트림의 심벌들의 블록들에 순열 행렬을 적용하여 순열 처리된 심벌들의 블록들을 형성하는 단계와;각 행이 심벌들을 포함하는 행들을 갖는 상기 순열 처리된 심벌들의 블록들의 공간-시간 블록 부호화 행렬을 생성하는 단계와;상기 공간-시간 부호화 행렬의 상기 행의 상기 순열 처리된 심벌들의 블록들로부터 전송 신호들을 생성하는 단계; 및복수의 전송 시간 간격들 이내에, 무선 통신 매체를 통해 상기 전송 신호들을 전달하는 단계를 포함하는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 22 항에 있어서,상기 공간-시간 블록 부호화 행렬은 Nt 개의 행을 가지며,상기 Nt 는 송신 장치 내에 있는 복수의 송신기들을 나타내는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
- 제 22 항에 있어서,정보-수용 심벌들의 상기 외향 데이터 스트림을 파싱하여 K 개의 심벌들의 블록들을 형성하는 단계와;상기 K 개의 심벌들의 블록들을 프리코딩하여 J 개의 심벌들을 갖는 블록들을 형성하는 단계와;연속하는 Ns개의 상기 J 개의 심벌들의 블록들을 획득하는 단계와;행마다 ND*J개의 심벌들을 갖는 Nt개의 행을 갖도록 상기 공간-시간 블록 부호화 행렬을 생성하는 단계를 더 포함하며, 상기 ND는 상기 전송 신호들을 전달하기 위한 상기 전송 시간 간격들을 나타내는 것을 특징으로 하는 무선통신망에서의 공간-시간 부호화 전송 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29347601P | 2001-05-25 | 2001-05-25 | |
US60/293,476 | 2001-05-25 | ||
PCT/US2002/016897 WO2002098051A1 (en) | 2001-05-25 | 2002-05-28 | Space-time coded transmissions within a wireless communication network |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040019296A KR20040019296A (ko) | 2004-03-05 |
KR100870557B1 true KR100870557B1 (ko) | 2008-11-27 |
Family
ID=23129242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020037015423A KR100870557B1 (ko) | 2001-05-25 | 2002-05-28 | 무선통신망에서의 공간-시간 부호화 전송 장치 및 방법 |
Country Status (7)
Country | Link |
---|---|
US (2) | US7190734B2 (ko) |
EP (1) | EP1393486B1 (ko) |
JP (1) | JP4387791B2 (ko) |
KR (1) | KR100870557B1 (ko) |
CN (1) | CN100414861C (ko) |
DE (1) | DE60227511D1 (ko) |
WO (1) | WO2002098051A1 (ko) |
Families Citing this family (213)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7952511B1 (en) | 1999-04-07 | 2011-05-31 | Geer James L | Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns |
US7295509B2 (en) | 2000-09-13 | 2007-11-13 | Qualcomm, Incorporated | Signaling method in an OFDM multiple access system |
US9130810B2 (en) | 2000-09-13 | 2015-09-08 | Qualcomm Incorporated | OFDM communications methods and apparatus |
US7342875B2 (en) * | 2000-11-06 | 2008-03-11 | The Directv Group, Inc. | Space-time coded OFDM system for MMDS applications |
US7471734B2 (en) * | 2001-04-26 | 2008-12-30 | Motorola, Inc. | Space-time transmit diversity scheme for time-dispersive propagation media |
CN100414861C (zh) * | 2001-05-25 | 2008-08-27 | 明尼苏达大学董事会 | 无线通信网中的空时编码传输 |
US7430245B2 (en) * | 2004-07-02 | 2008-09-30 | Qualcomm Incorporated | Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems |
US6760388B2 (en) * | 2001-12-07 | 2004-07-06 | Qualcomm Incorporated | Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems |
FI20021013A0 (fi) * | 2002-05-29 | 2002-05-29 | Nokia Corp | Tiedonsiirtomenetelmä ja -järjestelmä |
US20030235146A1 (en) * | 2002-06-21 | 2003-12-25 | Yunnan Wu | Bezout precoder for transmitter in MIMO communications network |
US20040116077A1 (en) * | 2002-08-08 | 2004-06-17 | Kddi Corporation | Transmitter device and receiver device adopting space time transmit diversity multicarrier CDMA, and wireless communication system with the transmitter device and the receiver device |
FR2848747A1 (fr) * | 2002-12-16 | 2004-06-18 | France Telecom | Procede et dispositif multi-antenne de transmission de signaux |
KR100605860B1 (ko) * | 2003-01-09 | 2006-07-31 | 삼성전자주식회사 | 4개의 송신 안테나를 사용하는 무선통신 시스템의 송신 장치 및 방법 |
KR100557085B1 (ko) * | 2003-01-09 | 2006-03-03 | 삼성전자주식회사 | 적어도 3개의 송신 안테나들을 사용하는 무선통신시스템의 수신 장치 |
US7197082B2 (en) * | 2003-03-20 | 2007-03-27 | Lucent Technologies Inc. | Linear transformation of symbols to at least partially compensate for correlation between antennas in space time block coded systems |
US7130580B2 (en) * | 2003-03-20 | 2006-10-31 | Lucent Technologies Inc. | Method of compensating for correlation between multiple antennas |
EP1469613A1 (de) * | 2003-04-16 | 2004-10-20 | Siemens Aktiengesellschaft | Verfahren und Sender zur Übertragung von Daten in einem Mehrträgersystem über eine Mehrzahl von Sendeantennen |
US7688902B1 (en) | 2003-04-16 | 2010-03-30 | Marvell International Ltd. | Joint space-time block decoding and viterbi decoding |
US8064528B2 (en) | 2003-05-21 | 2011-11-22 | Regents Of The University Of Minnesota | Estimating frequency-offsets and multi-antenna channels in MIMO OFDM systems |
US8064554B2 (en) * | 2003-06-19 | 2011-11-22 | Sony Corporation | Radio communication system performing multi-carrier transmission, reception device, reception method, transmission device, transmission method, delay time calculation device, and delay time calculation method |
WO2005004429A1 (en) * | 2003-06-24 | 2005-01-13 | Globespanvirata Incorporated | Method and apparatus for improving multi-tone transmission in a multiple-channel system |
ES2312736T3 (es) * | 2003-08-29 | 2009-03-01 | Alcatel Lucent | Entrega rapida de mensajes multimedia en redes celulares. |
WO2005029758A2 (en) * | 2003-09-15 | 2005-03-31 | Intel Corporation | Multiple antenna systems and methods using high-throughput space-frequency block codes |
US7535819B1 (en) * | 2003-09-26 | 2009-05-19 | Staccato Communications, Inc. | Multiband OFDM system with mapping |
KR100913874B1 (ko) | 2003-10-27 | 2009-08-26 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 부채널 간 간섭 제거 방법 |
US7616698B2 (en) | 2003-11-04 | 2009-11-10 | Atheros Communications, Inc. | Multiple-input multiple output system and method |
US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US7302009B2 (en) * | 2003-12-17 | 2007-11-27 | Qualcomm Incorporated | Broadcast transmission with spatial spreading in a multi-antenna communication system |
CN100446451C (zh) * | 2003-12-23 | 2008-12-24 | 三星电子株式会社 | 使用辅助码元的时空分组编码方法 |
KR20050065295A (ko) * | 2003-12-23 | 2005-06-29 | 삼성전자주식회사 | 보조 심볼을 이용한 시공간 블록 부호 인코딩 방법 |
GB2409617B (en) * | 2003-12-23 | 2006-07-12 | Toshiba Res Europ Ltd | Data encoding for static mimo channels |
KR100757963B1 (ko) * | 2003-12-24 | 2007-09-11 | 삼성전자주식회사 | 통신시스템에서 부호화 방법 및 장치 |
CN100504306C (zh) * | 2004-01-07 | 2009-06-24 | Nxp股份有限公司 | 用于角度测量的amr传感器元件 |
US7336746B2 (en) * | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
US7701917B2 (en) * | 2004-02-05 | 2010-04-20 | Qualcomm Incorporated | Channel estimation for a wireless communication system with multiple parallel data streams |
US8169889B2 (en) * | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US20050180312A1 (en) * | 2004-02-18 | 2005-08-18 | Walton J. R. | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US20050238111A1 (en) * | 2004-04-09 | 2005-10-27 | Wallace Mark S | Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system |
KR20050099906A (ko) * | 2004-04-12 | 2005-10-17 | 삼성전자주식회사 | 직교주파수분할 다중접속 시스템에서 순환 주파수 패턴에따른 고속 주파수 도약을 위한 송수신장치 |
US7555053B2 (en) * | 2004-04-14 | 2009-06-30 | Broadcom Corporation | Long training sequence for MIMO WLAN systems |
US8923785B2 (en) | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
JP4413964B2 (ja) * | 2004-05-07 | 2010-02-10 | サムスン エレクトロニクス カンパニー リミテッド | 多重入力多重出力方式を使用する移動通信システムにおける時空間ブロック符号の符号化/復号化を遂行する装置及び方法 |
US8285226B2 (en) * | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
KR100638705B1 (ko) * | 2004-05-13 | 2006-10-30 | 가부시키가이샤 엔티티 도코모 | 신호 분해 장치 및 신호 분해 방법 |
KR100754795B1 (ko) * | 2004-06-18 | 2007-09-03 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 주파수 공간 블록 부호의부호화/복호화 장치 및 방법 |
GB2415336B (en) * | 2004-06-18 | 2006-11-08 | Toshiba Res Europ Ltd | Bit interleaver for a mimo system |
KR100671231B1 (ko) * | 2004-06-21 | 2007-02-28 | 삼성전자주식회사 | 최대 다이버시티 최대 부호율을 갖는 짝수개의 송신안테나를 위한 시공간 블록 부호 장치 및 방법 |
US7110463B2 (en) * | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
WO2006002550A1 (en) * | 2004-07-07 | 2006-01-12 | Nortel Networks Limited | System and method for mapping symbols for mimo transmission |
US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
US9148256B2 (en) | 2004-07-21 | 2015-09-29 | Qualcomm Incorporated | Performance based rank prediction for MIMO design |
US9137822B2 (en) | 2004-07-21 | 2015-09-15 | Qualcomm Incorporated | Efficient signaling over access channel |
CN102664661A (zh) | 2004-08-12 | 2012-09-12 | 美商内数位科技公司 | 一种基站、无线发射/接收单元及方法 |
KR100780364B1 (ko) * | 2004-08-17 | 2007-11-29 | 삼성전자주식회사 | 성능 향상된 시공간 블록 부호화 장치 및 방법 |
KR100780363B1 (ko) * | 2004-08-27 | 2007-11-29 | 삼성전자주식회사 | 2개의 송신안테나를 위한 최대 다이버시티 최대 전송율을갖는 시공간 블록 부호화 장치 및 방법 |
US7978778B2 (en) * | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US7894548B2 (en) * | 2004-09-03 | 2011-02-22 | Qualcomm Incorporated | Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system |
KR100913873B1 (ko) * | 2004-09-13 | 2009-08-26 | 삼성전자주식회사 | 고속 전송률을 가지는 차등 시공간 블록 부호 장치 및 방법 |
KR100769671B1 (ko) * | 2005-02-21 | 2007-10-24 | 삼성전자주식회사 | Mb-ofdm 송수신장치 및 그 신호처리 방법 |
DE102004047746A1 (de) * | 2004-09-30 | 2006-04-27 | Siemens Ag | Verfahren zur Realisierung einer Verbindungsanpassung in einem MIMO-OFDM-Übertragungssystem |
US7627051B2 (en) * | 2004-11-08 | 2009-12-01 | Samsung Electronics Co., Ltd. | Method of maximizing MIMO system performance by joint optimization of diversity and spatial multiplexing |
US7339884B2 (en) * | 2004-12-08 | 2008-03-04 | New Jersey Institute Of Technology | STBC MIMO-OFDM peak-to-average power ratio reduction by cross-antenna rotation and inversion |
US20060153312A1 (en) * | 2005-01-07 | 2006-07-13 | Samsung Electronics Co., Ltd. | Apparatus and method for space-time frequency block coding in a wireless communication system |
KR100688120B1 (ko) * | 2005-01-07 | 2007-03-02 | 삼성전자주식회사 | 무선통신시스템에서 시공간 주파수 블록 부호화 장치 및방법 |
US7882413B2 (en) * | 2005-01-20 | 2011-02-01 | New Jersey Institute Of Technology | Method and/or system for space-time encoding and/or decoding |
US9246560B2 (en) | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
US9154211B2 (en) | 2005-03-11 | 2015-10-06 | Qualcomm Incorporated | Systems and methods for beamforming feedback in multi antenna communication systems |
US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) * | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9461859B2 (en) * | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US8320499B2 (en) | 2005-03-18 | 2012-11-27 | Qualcomm Incorporated | Dynamic space-time coding for a communication system |
US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
KR101119351B1 (ko) | 2005-05-04 | 2012-03-06 | 삼성전자주식회사 | 직교 주파수 분할 다중 시스템에서 정보의 송수신 방법 및 장치와 그 시스템 |
US7609789B2 (en) * | 2005-05-19 | 2009-10-27 | MetaLink, Ltd. | Phase noise compensation for MIMO WLAN systems |
ATE508549T1 (de) * | 2005-05-25 | 2011-05-15 | Mitsubishi Electric Corp | Kodierungsmatrix in einem mimo system |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8599945B2 (en) * | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US8090412B2 (en) * | 2005-07-17 | 2012-01-03 | Broadcom Corporation | Multi-sector base station and shared processing information |
US8885628B2 (en) * | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US7542743B2 (en) * | 2005-09-30 | 2009-06-02 | Broadcom Corporation | Maximum likelihood detection for MIMO receivers |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9210651B2 (en) * | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US20070104286A1 (en) * | 2005-11-08 | 2007-05-10 | Juinn-Horng Deng | Equipment and method for MIMO SC-FED communication system |
US8582548B2 (en) * | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
KR100800806B1 (ko) * | 2005-12-30 | 2008-02-01 | 삼성전자주식회사 | 무선 통신 시스템에서 신호 송수신 장치 및 방법 |
US8831607B2 (en) | 2006-01-05 | 2014-09-09 | Qualcomm Incorporated | Reverse link other sector communication |
FR2899042B1 (fr) * | 2006-03-21 | 2008-05-02 | Commissariat Energie Atomique | Procede de codage spatio-temporel pour systeme de communication bi-antenne de type uwb impulsionnel |
FR2899745B1 (fr) * | 2006-04-07 | 2008-05-30 | Commissariat Energie Atomique | Procede de codage spatio-temporel pour systeme de communication multi-antenne de type uwb impulsionnel |
US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
WO2007123302A1 (en) | 2006-04-25 | 2007-11-01 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
US7974358B2 (en) * | 2006-05-03 | 2011-07-05 | Industrial Technology Research Institute | Orthogonal frequency division multiplexing (OFDM) encoding and decoding methods and systems |
US8290089B2 (en) * | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
US8233558B2 (en) * | 2006-05-31 | 2012-07-31 | Cornell University | Methods and systems for space-time coding for distributed cooperative communicaton |
CN101127747B (zh) | 2006-08-14 | 2010-09-08 | 大唐移动通信设备有限公司 | 一种时分双工复用***中实现频域调度的方法及*** |
JP4928611B2 (ja) * | 2006-08-25 | 2012-05-09 | イカノス テクノロジー リミテッド | xDSLシステムにおけるMIMOプリコーディングのためのシステムと方法 |
KR100822818B1 (ko) * | 2006-09-28 | 2008-04-18 | 삼성전자주식회사 | 시간 반전 시공간 블록 부호화 시스템을 위한 블록 시간영역 이퀄라이저 |
FR2906659B1 (fr) * | 2006-10-03 | 2008-12-19 | Commissariat Energie Atomique | Procede de codage spatio-temporel pour systeme de communication multi-antenne de type uwb impulsionnel. |
KR101421413B1 (ko) | 2006-11-01 | 2014-08-13 | 코닌클리케 필립스 엔.브이. | 트렐리스 코딩된 변조(tcm), 다중 레벨 코딩된 변조(tlcm) 및 비트 인터리빙된 mlcm(bimlcm)을 이용한 단일 캐리어 블록 전송 |
KR100874004B1 (ko) * | 2006-12-07 | 2008-12-17 | 한국전자통신연구원 | 이동통신 시스템에서 공간 시간 부호의 검출 방법 |
EP1978666B1 (en) * | 2007-04-02 | 2014-01-22 | Sequans Communications | Method for transmitting and estimating symbols coded with coding matrix, as well as corresponding receiver and transmitter |
US8131218B2 (en) * | 2007-04-13 | 2012-03-06 | General Dynamics C4 Systems, Inc. | Methods and apparatus for wirelessly communicating signals that include embedded synchronization/pilot sequences |
KR20080094189A (ko) * | 2007-04-19 | 2008-10-23 | 엘지전자 주식회사 | 신호 송수신 방법 및 신호 송수신 장치 |
WO2009025493A2 (en) * | 2007-08-22 | 2009-02-26 | Lg Electronics Inc. | Method for transmitting/receiving data in multiple-input multiple-output system using multi-carrier |
KR101370916B1 (ko) | 2007-08-22 | 2014-03-10 | 엘지전자 주식회사 | 다수의 부 반송파를 이용하는 다중 안테나 시스템에서의,데이터 송수신 방법 |
KR101329145B1 (ko) * | 2007-10-05 | 2013-11-21 | 포항공과대학교 산학협력단 | 반복적 다중 사용자 검파를 통한 공간 블록 부호화 신호송수신 장치 및 방법 |
US8000417B1 (en) * | 2007-11-27 | 2011-08-16 | Samsung Electronics Co., Ltd. | Methods and OFDM receivers providing inter-carrier interference cancellation with guard interval reuse scheme |
CN101919174B (zh) * | 2008-01-17 | 2012-10-03 | 上海贝尔股份有限公司 | 一种基于酉空时编码的信号发送方法及装置 |
US8379752B2 (en) * | 2008-03-19 | 2013-02-19 | General Dynamics C4 Systems, Inc. | Methods and apparatus for multiple-antenna communication of wireless signals with embedded synchronization/pilot sequences |
US8331420B2 (en) * | 2008-04-14 | 2012-12-11 | General Dynamics C4 Systems, Inc. | Methods and apparatus for multiple-antenna communication of wireless signals with embedded pilot signals |
CN101621358B (zh) * | 2008-07-04 | 2013-01-02 | 上海华为技术有限公司 | 一种上行传输方法、***和装置 |
WO2010003183A1 (en) | 2008-07-07 | 2010-01-14 | Commonwealth Scientific And Industrial Research Organisation | Multiple-input multiple-output ofdm systems |
US8509324B2 (en) * | 2008-07-08 | 2013-08-13 | Qualcomm Incorporated | Methods and systems for reducing PAPR of an OFDM signal |
FR2936122B1 (fr) * | 2008-09-15 | 2010-10-15 | Commissariat Energie Atomique | Methode d'estimation aveugle de parametres de signal ofdm par filtrage adapte. |
WO2010047510A2 (en) * | 2008-10-20 | 2010-04-29 | Lg Electronics Inc. | Method and apparatus for transmitting signal in a wireless communication system |
KR101007433B1 (ko) | 2008-12-31 | 2011-01-12 | 주식회사 세아네트웍스 | 전송 다이버시티를 이용한 데이터 전송 방법 및 장치 |
CN104506289B (zh) * | 2009-01-09 | 2018-08-28 | 联想创新有限公司(香港) | 多分量载波ofdma通信*** |
US8194799B2 (en) * | 2009-03-30 | 2012-06-05 | King Fahd University of Pertroleum & Minerals | Cyclic prefix-based enhanced data recovery method |
DE102009017552B3 (de) * | 2009-04-17 | 2010-09-30 | Sew-Eurodrive Gmbh & Co. Kg | Vorrichtung und Verfahren zur berührungslosen Übertragung elektrischer Leistung und Information |
US8744009B2 (en) * | 2009-09-25 | 2014-06-03 | General Dynamics C4 Systems, Inc. | Reducing transmitter-to-receiver non-linear distortion at a transmitter prior to estimating and cancelling known non-linear distortion at a receiver |
US8355466B2 (en) * | 2009-09-25 | 2013-01-15 | General Dynamics C4 Systems, Inc. | Cancelling non-linear power amplifier induced distortion from a received signal by moving incorrectly estimated constellation points |
US9071286B2 (en) | 2011-05-26 | 2015-06-30 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US9444514B2 (en) | 2010-05-28 | 2016-09-13 | Cohere Technologies, Inc. | OTFS methods of data channel characterization and uses thereof |
US9130638B2 (en) | 2011-05-26 | 2015-09-08 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US8547988B2 (en) * | 2010-05-28 | 2013-10-01 | Ronny Hadani | Communications method employing orthonormal time-frequency shifting and spectral shaping |
US9071285B2 (en) | 2011-05-26 | 2015-06-30 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US11943089B2 (en) | 2010-05-28 | 2024-03-26 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-shifting communications system |
US10667148B1 (en) | 2010-05-28 | 2020-05-26 | Cohere Technologies, Inc. | Methods of operating and implementing wireless communications systems |
US10681568B1 (en) | 2010-05-28 | 2020-06-09 | Cohere Technologies, Inc. | Methods of data channel characterization and uses thereof |
US8976851B2 (en) | 2011-05-26 | 2015-03-10 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
CN105450277B (zh) * | 2010-12-10 | 2018-11-20 | 太阳专利托管公司 | 发送方法和发送***以及接收方法和接收装置 |
US9201132B2 (en) * | 2011-04-15 | 2015-12-01 | Ziva Corporation | Anti-Geolocation |
US9590779B2 (en) | 2011-05-26 | 2017-03-07 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US9031141B2 (en) | 2011-05-26 | 2015-05-12 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US9294315B2 (en) | 2011-05-26 | 2016-03-22 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US10469215B2 (en) | 2012-06-25 | 2019-11-05 | Cohere Technologies, Inc. | Orthogonal time frequency space modulation system for the Internet of Things |
US10090972B2 (en) | 2012-06-25 | 2018-10-02 | Cohere Technologies, Inc. | System and method for two-dimensional equalization in an orthogonal time frequency space communication system |
US9929783B2 (en) | 2012-06-25 | 2018-03-27 | Cohere Technologies, Inc. | Orthogonal time frequency space modulation system |
US9967758B2 (en) | 2012-06-25 | 2018-05-08 | Cohere Technologies, Inc. | Multiple access in an orthogonal time frequency space communication system |
US10003487B2 (en) | 2013-03-15 | 2018-06-19 | Cohere Technologies, Inc. | Symplectic orthogonal time frequency space modulation system |
US9912507B2 (en) | 2012-06-25 | 2018-03-06 | Cohere Technologies, Inc. | Orthogonal time frequency space communication system compatible with OFDM |
US10411843B2 (en) | 2012-06-25 | 2019-09-10 | Cohere Technologies, Inc. | Orthogonal time frequency space communication system compatible with OFDM |
EP3334077B1 (en) * | 2012-07-02 | 2019-08-28 | Huawei Technologies Co., Ltd. | Method, user equipment and base station for determining precoding matrix indicator |
DE102014222511A1 (de) | 2014-11-04 | 2016-05-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sendeeinrichtung zum Senden eines Ausgangssignals, Empfangseinrichtung zum Empfangen eines Ausgangssignals und Verfahren zum Senden beziehungsweise Empfangen derselben |
US9264118B1 (en) | 2015-03-02 | 2016-02-16 | Mitsubishi Electric Research Laboratories, Inc. | System and method for communicating data symbols via wireless doubly-selective channels |
WO2016183230A1 (en) | 2015-05-11 | 2016-11-17 | Cohere Technologies | Systems and methods for symplectic orthogonal time frequency shifting modulation and transmission of data |
US10090973B2 (en) | 2015-05-11 | 2018-10-02 | Cohere Technologies, Inc. | Multiple access in an orthogonal time frequency space communication system |
US9866363B2 (en) | 2015-06-18 | 2018-01-09 | Cohere Technologies, Inc. | System and method for coordinated management of network access points |
US10574317B2 (en) | 2015-06-18 | 2020-02-25 | Cohere Technologies, Inc. | System and method for providing wireless communication services using configurable broadband infrastructure shared among multiple network operators |
CN112532558A (zh) | 2015-06-27 | 2021-03-19 | 凝聚技术股份有限公司 | 与ofdm兼容的正交时频空间通信*** |
US10892547B2 (en) | 2015-07-07 | 2021-01-12 | Cohere Technologies, Inc. | Inconspicuous multi-directional antenna system configured for multiple polarization modes |
US10693581B2 (en) | 2015-07-12 | 2020-06-23 | Cohere Technologies, Inc. | Orthogonal time frequency space modulation over a plurality of narrow band subcarriers |
CN105245477B (zh) * | 2015-09-01 | 2018-09-07 | 中国计量学院 | 一种低复杂度差分空间调制检测算法 |
KR20190008827A (ko) | 2015-09-07 | 2019-01-25 | 코히어 테크널러지스, 아이엔씨. | 직교 시간 주파수 공간 변조를 이용한 다중액세스 |
WO2017087706A1 (en) | 2015-11-18 | 2017-05-26 | Cohere Technologies | Orthogonal time frequency space modulation techniques |
EP3387748B1 (en) | 2015-12-09 | 2022-03-09 | Cohere Technologies, Inc. | Pilot packing using complex orthogonal functions |
US10666314B2 (en) | 2016-02-25 | 2020-05-26 | Cohere Technologies, Inc. | Reference signal packing for wireless communications |
US10771297B2 (en) * | 2016-03-11 | 2020-09-08 | Orange | Method and device for multi-service transmission with FC-OFDM modulation and corresponding receiver |
CN109314619B (zh) | 2016-03-23 | 2021-05-25 | 凝聚技术公司 | 正交时间频率空间调制信号的接收器侧处理 |
US9667307B1 (en) | 2016-03-31 | 2017-05-30 | Cohere Technologies | Wireless telecommunications system for high-mobility applications |
CN109845102B (zh) | 2016-03-31 | 2023-07-28 | 凝聚技术公司 | 使用正交时间频率空间调制的导频信号的信道获取 |
EP3437197B1 (en) | 2016-04-01 | 2022-03-09 | Cohere Technologies, Inc. | Tomlinson-harashima precoding in an otfs communication system |
CN109314682B (zh) | 2016-04-01 | 2021-09-21 | 凝聚技术公司 | 正交时频空间调制信号的迭代二维均衡 |
US10938602B2 (en) | 2016-05-20 | 2021-03-02 | Cohere Technologies, Inc. | Iterative channel estimation and equalization with superimposed reference signals |
US9848342B1 (en) * | 2016-07-20 | 2017-12-19 | Ccip, Llc | Excursion compensation in multipath communication systems having performance requirements parameters |
KR102512844B1 (ko) * | 2016-06-29 | 2023-03-22 | 삼성전자주식회사 | 무선 통신 시스템에서 블록 코드의 퍼뮤테이션을 위한 장치 및 방법 |
US10033482B2 (en) * | 2016-08-03 | 2018-07-24 | Samsung Electronics Co., Ltd | System and method for providing interference parameter estimation for multi-input multi-output (MIMO) communication system |
EP4362590A3 (en) | 2016-08-12 | 2024-06-26 | Cohere Technologies, Inc. | Method for multi-user multiplexing of orthogonal time frequency space signals |
EP3497799A4 (en) | 2016-08-12 | 2020-04-15 | Cohere Technologies, Inc. | MULTILEVEL ITERATIVE EQUALIZATION AND DECODING |
EP3497907A4 (en) | 2016-08-12 | 2020-03-04 | Cohere Technologies, Inc. | LOCALIZED EQUALIZATION FOR INTER-CARRIER INTERFERENCE CHANNELS |
DE102016215640A1 (de) * | 2016-08-19 | 2018-02-22 | Robert Bosch Gmbh | Verfahren, Sensor und Steuergerät zum Übertragen eines Datenpakets von einem Sensor zu einem Steuergerät |
WO2018064587A1 (en) | 2016-09-29 | 2018-04-05 | Cohere Technologies | Transport block segmentation for multi-level codes |
EP3520310B1 (en) | 2016-09-30 | 2021-10-27 | Cohere Technologies, Inc. | Uplink user resource allocation for orthogonal time frequency space modulation |
WO2018106731A1 (en) | 2016-12-05 | 2018-06-14 | Cohere Technologies | Fixed wireless access using orthogonal time frequency space modulation |
WO2018129554A1 (en) | 2017-01-09 | 2018-07-12 | Cohere Technologies | Pilot scrambling for channel estimation |
WO2018140837A1 (en) | 2017-01-27 | 2018-08-02 | Cohere Technologies | Variable beamwidth multiband antenna |
US10568143B2 (en) | 2017-03-28 | 2020-02-18 | Cohere Technologies, Inc. | Windowed sequence for random access method and apparatus |
WO2018191309A1 (en) | 2017-04-11 | 2018-10-18 | Cohere Technologies | Digital communication using dispersed orthogonal time frequency space modulated signals |
EP4109983A1 (en) | 2017-04-21 | 2022-12-28 | Cohere Technologies, Inc. | Communication techniques using quasi-static properties of wireless channels |
WO2018200567A1 (en) | 2017-04-24 | 2018-11-01 | Cohere Technologies | Multibeam antenna designs and operation |
US11063804B2 (en) | 2017-04-24 | 2021-07-13 | Cohere Technologies, Inc. | Digital communication using lattice division multiplexing |
KR102612426B1 (ko) | 2017-07-12 | 2023-12-12 | 코히어 테크놀로지스, 아이엔씨. | Zak 변환에 기초한 데이터 변조 기법 |
US11546068B2 (en) | 2017-08-11 | 2023-01-03 | Cohere Technologies, Inc. | Ray tracing technique for wireless channel measurements |
WO2019036492A1 (en) | 2017-08-14 | 2019-02-21 | Cohere Technologies | ASSIGNMENT OF TRANSMISSION RESOURCES BY DIVISION OF BLOCKS OF PHYSICAL RESOURCES |
CN111279337B (zh) | 2017-09-06 | 2023-09-26 | 凝聚技术公司 | 一种由无线通***装置实现的无线通信方法 |
US11283561B2 (en) | 2017-09-11 | 2022-03-22 | Cohere Technologies, Inc. | Wireless local area networks using orthogonal time frequency space modulation |
CN117040988A (zh) | 2017-09-15 | 2023-11-10 | 凝聚技术公司 | 在正交时频空间信号接收器中实现同步 |
US11532891B2 (en) | 2017-09-20 | 2022-12-20 | Cohere Technologies, Inc. | Low cost electromagnetic feed network |
WO2019068053A1 (en) | 2017-09-29 | 2019-04-04 | Cohere Technologies, Inc. | ERROR CORRECTION WITHOUT RETURN CIRCUIT USING LOW DENSITY NON-BINARY PARITY CHECK CODES |
WO2019089986A1 (en) | 2017-11-01 | 2019-05-09 | Cohere Technologies, Inc. | Precoding in wireless systems using orthogonal time frequency space multiplexing |
WO2019113046A1 (en) | 2017-12-04 | 2019-06-13 | Cohere Technologies, Inc. | Implementation of orthogonal time frequency space modulation for wireless communications |
EP3750252A4 (en) | 2018-02-08 | 2021-08-11 | Cohere Technologies, Inc. | CHANNEL ESTIMATE ASPECTS FOR ORTHOGONAL TIME-FREQUENCY SPATIAL MODULATION FOR WIRELESS COMMUNICATIONS |
WO2019173775A1 (en) | 2018-03-08 | 2019-09-12 | Cohere Technologies, Inc. | Scheduling multi-user mimo transmissions in fixed wireless access systems |
WO2019241589A1 (en) | 2018-06-13 | 2019-12-19 | Cohere Technologies, Inc. | Reciprocal calibration for channel estimation based on second-order statistics |
US11522600B1 (en) | 2018-08-01 | 2022-12-06 | Cohere Technologies, Inc. | Airborne RF-head system |
WO2020228956A1 (en) * | 2019-05-16 | 2020-11-19 | Huawei Technologies Co., Ltd. | Devices and methods for multicarrier modulation schemes |
US10833749B1 (en) * | 2019-07-01 | 2020-11-10 | Rampart Communications, Inc. | Communication system and method using layered construction of arbitrary unitary matrices |
WO2023136500A1 (ko) * | 2022-01-14 | 2023-07-20 | 삼성전자주식회사 | 멀티 사이클릭 쉬프트 분리 기법을 이용한 채널 추정 장치 및 방법 |
CN114598611B (zh) * | 2022-02-16 | 2023-04-11 | 北京科技大学 | 面向二集值fir***事件驱动辨识的输入设计方法及*** |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6452981B1 (en) | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6178196B1 (en) * | 1997-10-06 | 2001-01-23 | At&T Corp. | Combined interference cancellation and maximum likelihood decoding of space-time block codes |
US6088408A (en) | 1998-11-06 | 2000-07-11 | At & T Corp. | Decoding for generalized orthogonal designs for space-time codes for wireless communication |
US6430231B1 (en) * | 1997-11-11 | 2002-08-06 | At&T Corp. | Generalized orthogonal designs for space-time codes for wireless communication |
WO2000018056A1 (en) * | 1998-09-18 | 2000-03-30 | Hughes Electronics Corporation | Method and constructions for space-time codes for psk constellations for spatial diversity in multiple-element antenna systems |
US6317411B1 (en) * | 1999-02-22 | 2001-11-13 | Motorola, Inc. | Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques |
US6614861B1 (en) * | 1999-04-16 | 2003-09-02 | Nokia Networks Oy | Method and apparatus for higher dimensional modulation |
EP1063790B1 (en) * | 1999-06-24 | 2002-05-29 | Alcatel | Diversity transmission in a Mobile Radio System |
US6853689B1 (en) * | 1999-07-15 | 2005-02-08 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for channel estimation with transmit diversity |
US6560295B1 (en) * | 1999-09-15 | 2003-05-06 | Hughes Electronics Corporation | Method of generating space-time codes for generalized layered space-time architectures |
JP2001111464A (ja) * | 1999-10-08 | 2001-04-20 | Matsushita Electric Ind Co Ltd | 基地局装置及び無線送信方法 |
US7272192B2 (en) | 2000-04-14 | 2007-09-18 | Board Of Trustees Of The Leland Stanford Junior University | Time-reversal block transmit diversity system for channels with intersymbol interference and method |
US6442214B1 (en) * | 2000-05-19 | 2002-08-27 | Iospan Wireless, Inc. | Diversity transmitter based on linear transform processing of transmitted information |
US7042956B2 (en) | 2000-11-06 | 2006-05-09 | Hesham El-Gamal | Method and system for utilizing space-time codes for block fading channels |
US7010054B2 (en) | 2000-11-17 | 2006-03-07 | The Directv Group, Inc. | Method and system for utilizing space-time overlays for convolutionally coded systems |
WO2002052773A1 (en) * | 2000-12-20 | 2002-07-04 | Nortel Networks Limited | Differential space-time block coding |
CN100414861C (zh) * | 2001-05-25 | 2008-08-27 | 明尼苏达大学董事会 | 无线通信网中的空时编码传输 |
US7440510B2 (en) * | 2003-09-15 | 2008-10-21 | Intel Corporation | Multicarrier transmitter, multicarrier receiver, and methods for communicating multiple spatial signal streams |
CN1883151B (zh) * | 2003-09-15 | 2010-06-16 | 英特尔公司 | 用于传递多个空间信号流的多载波发射机、多载波接收机和方法 |
-
2002
- 2002-05-28 CN CNB028106164A patent/CN100414861C/zh not_active Expired - Lifetime
- 2002-05-28 US US10/158,390 patent/US7190734B2/en active Active
- 2002-05-28 KR KR1020037015423A patent/KR100870557B1/ko active IP Right Grant
- 2002-05-28 JP JP2003501123A patent/JP4387791B2/ja not_active Expired - Lifetime
- 2002-05-28 DE DE60227511T patent/DE60227511D1/de not_active Expired - Lifetime
- 2002-05-28 EP EP02739494A patent/EP1393486B1/en not_active Expired - Lifetime
- 2002-05-28 WO PCT/US2002/016897 patent/WO2002098051A1/en active Application Filing
-
2007
- 2007-03-06 US US11/682,664 patent/US7609782B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6452981B1 (en) | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
Also Published As
Publication number | Publication date |
---|---|
CN100414861C (zh) | 2008-08-27 |
WO2002098051A1 (en) | 2002-12-05 |
EP1393486B1 (en) | 2008-07-09 |
US20030073464A1 (en) | 2003-04-17 |
CN1703863A (zh) | 2005-11-30 |
DE60227511D1 (de) | 2008-08-21 |
JP4387791B2 (ja) | 2009-12-24 |
US20080037685A1 (en) | 2008-02-14 |
KR20040019296A (ko) | 2004-03-05 |
US7190734B2 (en) | 2007-03-13 |
EP1393486A1 (en) | 2004-03-03 |
JP2004534447A (ja) | 2004-11-11 |
US7609782B2 (en) | 2009-10-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100870557B1 (ko) | 무선통신망에서의 공간-시간 부호화 전송 장치 및 방법 | |
Zhou et al. | Single-carrier space-time block-coded transmissions over frequency-selective fading channels | |
Al-Dhahir | Single-carrier frequency-domain equalization for space-time block-coded transmissions over frequency-selective fading channels | |
CA2427403C (en) | Space-time-frequency coded ofdm over frequency-selective fading channels | |
KR100906285B1 (ko) | 직교 주파수 분할 통신 시스템에서 공간-시간 블록 코딩 | |
Liu et al. | Linear constellation precoding for OFDM with maximum multipath diversity and coding gains | |
US8503567B2 (en) | Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding | |
US20060120477A1 (en) | Cooperative MIMO in multicell wireless networks | |
WO2006049426A1 (en) | Apparatus and method for transmitting and receiving data using space-time block coding | |
KR100720872B1 (ko) | 성능 향상위한 시공간 블록 부호화 장치 및 방법을 구현하는 송수신 장치 및 방법 | |
AU2005273137A1 (en) | Apparatus and method for space-time-frequency block coding for increasing performance | |
WO2003052991A2 (en) | A method and system of operating a coded ofdm communication system | |
EP1461924A2 (en) | Method and apparatus for determining the log-likelihood ratio with precoding | |
Wang et al. | A family of space-time block codes achieving full diversity with linear receivers | |
Hemadeh et al. | Reduced-RF-chain aided soft-decision multi-set steered space-time shift-keying for millimeter-wave communications | |
WO2007111198A1 (ja) | 送信方法及び送信装置 | |
Mheidat et al. | Quasi-orthogonal time-reversal space–time block coding for frequency-selective fading channels | |
Chern et al. | Novel frequency-domain DFE equalizer with oblique projection for CP-free space-time block coded MIMO-OFDM systems | |
KR101225649B1 (ko) | 다중 안테나 통신시스템의 채널추정 장치 및 방법 | |
Hwang et al. | An interleaved TCM scheme for single carrier multiple transmit antenna systems | |
Zhu et al. | Peak-to-average power ratio reduction in MIMO-OFDM with trellis exploration algorithm | |
Hori | Design of decoding latency-aware wireless communication systems based on OFDM | |
Liu et al. | Hybrid detectors for wireless orthogonal frequency division multiplexing with code division multiplexing systems based on reliability information | |
Guey et al. | Transceiver design and performance evaluation of MIMO systems with forward link channel knowledge | |
Acar et al. | Generalized prefix approach for alamouti coded OFDM systems over Gaussian channels correlated in space |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20121105 Year of fee payment: 5 |
|
FPAY | Annual fee payment |
Payment date: 20131106 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20141105 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20151105 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20161103 Year of fee payment: 9 |
|
FPAY | Annual fee payment |
Payment date: 20171107 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20181106 Year of fee payment: 11 |