JPS57155856A - Adaptive modulation system - Google Patents
Adaptive modulation systemInfo
- Publication number
- JPS57155856A JPS57155856A JP4111981A JP4111981A JPS57155856A JP S57155856 A JPS57155856 A JP S57155856A JP 4111981 A JP4111981 A JP 4111981A JP 4111981 A JP4111981 A JP 4111981A JP S57155856 A JPS57155856 A JP S57155856A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reception
- control
- inputted
- code speed
- 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.)
- Pending
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
- H04L1/0001—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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Radio Transmission System (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4111981A JPS57155856A (en) | 1981-03-20 | 1981-03-20 | Adaptive modulation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4111981A JPS57155856A (en) | 1981-03-20 | 1981-03-20 | Adaptive modulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57155856A true JPS57155856A (en) | 1982-09-27 |
Family
ID=12599560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4111981A Pending JPS57155856A (en) | 1981-03-20 | 1981-03-20 | Adaptive modulation system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57155856A (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5991752A (ja) * | 1982-11-18 | 1984-05-26 | Japanese National Railways<Jnr> | 伝送速度切替方式 |
JPS60143043A (ja) * | 1983-12-29 | 1985-07-29 | Nec Corp | デ−タ多重化方式 |
JPS611130A (ja) * | 1984-03-08 | 1986-01-07 | コ−デツクス・コ−ポレ−シヨン | 適応性通信率変復調装置 |
WO1992011700A2 (en) * | 1990-12-24 | 1992-07-09 | Eastman Kodak Company | Method and apparatus for providing adjustable error correction |
US5351134A (en) * | 1988-04-07 | 1994-09-27 | Canon Kabushiki Kaisha | Image communication system, and image communication apparatus and modem used in the system |
JPH08125704A (ja) * | 1994-10-25 | 1996-05-17 | Fukushima Nippon Denki Kk | マルチモード位相変調器 |
JPH08204626A (ja) * | 1995-01-27 | 1996-08-09 | Nec Corp | 長距離安定化無線通信システム |
JPH09261124A (ja) * | 1996-03-19 | 1997-10-03 | Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk | 可変容量スペクトル拡散伝送装置 |
US7023933B2 (en) | 2000-10-20 | 2006-04-04 | Matsushita Electric Industrial Co., Ltd. | Radio communication apparatus |
US7565114B2 (en) | 2003-07-16 | 2009-07-21 | Nec Corporation | Transmitter apparatus, receiver apparatus, and radio communication system |
JP2011097603A (ja) * | 1996-10-29 | 2011-05-12 | Qualcomm Inc | セルラー環境における高速データ通信の方法及び装置 |
-
1981
- 1981-03-20 JP JP4111981A patent/JPS57155856A/ja active Pending
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5991752A (ja) * | 1982-11-18 | 1984-05-26 | Japanese National Railways<Jnr> | 伝送速度切替方式 |
JPH0342533B2 (ja) * | 1982-11-18 | 1991-06-27 | ||
JPS60143043A (ja) * | 1983-12-29 | 1985-07-29 | Nec Corp | デ−タ多重化方式 |
JPS611130A (ja) * | 1984-03-08 | 1986-01-07 | コ−デツクス・コ−ポレ−シヨン | 適応性通信率変復調装置 |
US5351134A (en) * | 1988-04-07 | 1994-09-27 | Canon Kabushiki Kaisha | Image communication system, and image communication apparatus and modem used in the system |
WO1992011700A2 (en) * | 1990-12-24 | 1992-07-09 | Eastman Kodak Company | Method and apparatus for providing adjustable error correction |
US5267248A (en) * | 1990-12-24 | 1993-11-30 | Eastman Kodak Company | Method and apparatus for selecting an optimum error correction routine |
JPH08125704A (ja) * | 1994-10-25 | 1996-05-17 | Fukushima Nippon Denki Kk | マルチモード位相変調器 |
JPH08204626A (ja) * | 1995-01-27 | 1996-08-09 | Nec Corp | 長距離安定化無線通信システム |
JPH09261124A (ja) * | 1996-03-19 | 1997-10-03 | Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk | 可変容量スペクトル拡散伝送装置 |
JP2011097603A (ja) * | 1996-10-29 | 2011-05-12 | Qualcomm Inc | セルラー環境における高速データ通信の方法及び装置 |
US8085865B2 (en) | 1996-10-29 | 2011-12-27 | Qualcomm Incorporated | Method and apparatus for providing high speed data communications in a cellular environment |
US8891663B2 (en) | 1996-10-29 | 2014-11-18 | Qualcomm Incorporated | Method and apparatus for providing high speed data communications in a cellular environment |
US7023933B2 (en) | 2000-10-20 | 2006-04-04 | Matsushita Electric Industrial Co., Ltd. | Radio communication apparatus |
US7738590B2 (en) | 2000-10-20 | 2010-06-15 | Panasonic Corporation | Radio communication apparatus capable of switching modulation schemes |
US7953177B2 (en) | 2000-10-20 | 2011-05-31 | Panasonic Corporation | Radio communication apparatus capable of switching modulation schemes |
US8218680B2 (en) | 2000-10-20 | 2012-07-10 | Panasonic Corporation | Radio communication apparatus capable of switching modulation schemes |
US9590834B2 (en) | 2000-10-20 | 2017-03-07 | Wi-Fi One, Llc | Radio communication apparatus capable of switching modulation schemes |
US7565114B2 (en) | 2003-07-16 | 2009-07-21 | Nec Corporation | Transmitter apparatus, receiver apparatus, and radio communication system |
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