KR20070079985A - 직교주파수분할 다중화 시스템에서 송신 장치 및 방법 - Google Patents
직교주파수분할 다중화 시스템에서 송신 장치 및 방법 Download PDFInfo
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- KR20070079985A KR20070079985A KR1020060010959A KR20060010959A KR20070079985A KR 20070079985 A KR20070079985 A KR 20070079985A KR 1020060010959 A KR1020060010959 A KR 1020060010959A KR 20060010959 A KR20060010959 A KR 20060010959A KR 20070079985 A KR20070079985 A KR 20070079985A
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- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
- B60T8/266—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels using valves or actuators with external control means
- B60T8/267—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels using valves or actuators with external control means for hybrid systems with different kind of brakes on different axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
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- 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
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- 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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
- H04L1/002—Algorithms with memory of the previous states, e.g. Markovian models
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- 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
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- 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
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- 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
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- 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
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Probability & Statistics with Applications (AREA)
- Artificial Intelligence (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Robotics (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
Claims (10)
- 직교주파수분할 다중화 시스템에서 송신 장치에 있어서,채널 정보를 수신하는 채널 정보 수신기;상기 채널 정보와 이전 전송률을 이용하여 가변 전송률을 측정하는 전송률 할당기; 및상기 가변 전송률과 상기 채널 정보에 따라 채널 자원을 할당하는 스케쥴러를 포함하는 장치.
- 제 1항에 있어서,상기 스케쥴러는 상기 가변 전송률과 상기 채널정보를 이용하여 송신전력이 최소화 되도록 부채널을 할당함을 특징으로 하는 장치.
- 제 3항에 있어서,상기 스케쥴러는 상기 부채널을 할당하고, 상기 부채널을 할당한 경우 상기 가변 전송률을 이전 전송률에 저장하고, 상기 부채널을 할당하지 못한 경우 상기 가변 전송률을 '0'으로 상기 이전 전송률에 저장함을 특징으로 하는 장치.
- 직교주파수분할 다중화 시스템에서 송신 방법에 있어서,채널정보를 수신하는 과정;수신한 상기 채널 정보와 저장된 이전 전송률을 이용하여 가변 전송률을 측 정하는 과정; 및상기 측정한 가변 전송률에 따라 채널자원을 할당하는 과정을 포함함을 특징으로 하는 방법.
- 제 6항에 있어서,상기 채널자원인 부채널을 할당하고, 상기 부채널을 할당한 경우 상기 가변 전송률을 상기 이전 전송률에 저장하고, 상기 부채널을 할당하지 못한 경우 상기 가변 전송률을 '0'으로 상기 이전 전송률에 저장하는 과정을 더 포함함을 특징으로 하는 방법.
- 제 6항에 있어서,상기 채널자원 할당은 상기 가변 전송률과 상기 채널정보를 이용하여 송신전력이 최소화 되도록 부채널을 할당함을 특징으로 하는 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060010959A KR100889303B1 (ko) | 2006-02-06 | 2006-02-06 | 직교주파수분할 다중화 시스템에서 송신 장치 및 방법 |
US11/702,906 US20070230327A1 (en) | 2006-02-06 | 2007-02-06 | Transmitting apparatus and method in an orthogonal frequency division multiplexing system |
EP07101779A EP1816819A2 (en) | 2006-02-06 | 2007-02-06 | Transmitting apparatus and method in an orthogonal frequency division multiplexing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060010959A KR100889303B1 (ko) | 2006-02-06 | 2006-02-06 | 직교주파수분할 다중화 시스템에서 송신 장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20070079985A true KR20070079985A (ko) | 2007-08-09 |
KR100889303B1 KR100889303B1 (ko) | 2009-03-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060010959A KR100889303B1 (ko) | 2006-02-06 | 2006-02-06 | 직교주파수분할 다중화 시스템에서 송신 장치 및 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070230327A1 (ko) |
EP (1) | EP1816819A2 (ko) |
KR (1) | KR100889303B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100826541B1 (ko) * | 2006-09-29 | 2008-04-30 | 한국전자통신연구원 | OFDM/SDMA 기반 셀룰러 시스템에서 다양한트래픽의 개별 QoS 보장을 위한 하향링크 자원할당 장치및 방법 |
KR100950357B1 (ko) * | 2006-08-18 | 2010-03-29 | 후지쯔 가부시끼가이샤 | 무선 네트워크에서 채널들을 할당하는 시스템 및 방법 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8055291B2 (en) * | 2007-09-12 | 2011-11-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Power-aware link adaptation in a wideband CDMA system |
US9979467B1 (en) | 2014-12-23 | 2018-05-22 | Paul F Mahoney | Troposcatter communications system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3962020B2 (ja) * | 2001-11-10 | 2007-08-22 | サムスン エレクトロニクス カンパニー リミテッド | 直交周波数分割多重方式の移動通信システムにおける時空間−周波数符号化/復号化装置及び方法 |
US7012883B2 (en) * | 2001-11-21 | 2006-03-14 | Qualcomm Incorporated | Rate selection for an OFDM system |
KR100933155B1 (ko) * | 2002-09-30 | 2009-12-21 | 삼성전자주식회사 | 주파수분할다중접속 이동통신시스템에서 가상 셀의 자원할당장치 및 방법 |
KR100532295B1 (ko) * | 2003-03-25 | 2005-11-29 | 재단법인서울대학교산학협력재단 | 다중 송수신 안테나 시스템을 위한 무선통신 장치 및방법 |
US7640373B2 (en) * | 2003-04-25 | 2009-12-29 | Motorola, Inc. | Method and apparatus for channel quality feedback within a communication system |
US7333556B2 (en) * | 2004-01-12 | 2008-02-19 | Intel Corporation | System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel |
US20080089278A1 (en) * | 2006-10-11 | 2008-04-17 | Inha-Industry Partnership Institute | Method and frame structure for supporting dynamic channel allocation and dynamic power allocation in frequency reuse partitioning based OFDMA system |
-
2006
- 2006-02-06 KR KR1020060010959A patent/KR100889303B1/ko not_active IP Right Cessation
-
2007
- 2007-02-06 US US11/702,906 patent/US20070230327A1/en not_active Abandoned
- 2007-02-06 EP EP07101779A patent/EP1816819A2/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100950357B1 (ko) * | 2006-08-18 | 2010-03-29 | 후지쯔 가부시끼가이샤 | 무선 네트워크에서 채널들을 할당하는 시스템 및 방법 |
KR100826541B1 (ko) * | 2006-09-29 | 2008-04-30 | 한국전자통신연구원 | OFDM/SDMA 기반 셀룰러 시스템에서 다양한트래픽의 개별 QoS 보장을 위한 하향링크 자원할당 장치및 방법 |
Also Published As
Publication number | Publication date |
---|---|
EP1816819A2 (en) | 2007-08-08 |
KR100889303B1 (ko) | 2009-03-18 |
US20070230327A1 (en) | 2007-10-04 |
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